diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst b/Documentation/userspace-api/ioctl/ioctl-number.rst
index 5f81e2a24a5c..352c46d6abdf 100644
--- a/Documentation/userspace-api/ioctl/ioctl-number.rst
+++ b/Documentation/userspace-api/ioctl/ioctl-number.rst
@@ -66,17 +66,17 @@ This table lists ioctls visible from user land for Linux/x86.  It contains
 most drivers up to 2.6.31, but I know I am missing some.  There has been
 no attempt to list non-X86 architectures or ioctls from drivers/staging/.
 
-====  =====  ======================================================= ================================================================
-Code  Seq#    Include File                                           Comments
+====  =====  ========================================================= ================================================================
+Code  Seq#    Include File                                             Comments
       (hex)
-====  =====  ======================================================= ================================================================
-0x00  00-1F  linux/fs.h                                              conflict!
-0x00  00-1F  scsi/scsi_ioctl.h                                       conflict!
-0x00  00-1F  linux/fb.h                                              conflict!
-0x00  00-1F  linux/wavefront.h                                       conflict!
+====  =====  ========================================================= ================================================================
+0x00  00-1F  linux/fs.h                                                conflict!
+0x00  00-1F  scsi/scsi_ioctl.h                                         conflict!
+0x00  00-1F  linux/fb.h                                                conflict!
+0x00  00-1F  linux/wavefront.h                                         conflict!
 0x02  all    linux/fd.h
 0x03  all    linux/hdreg.h
-0x04  D2-DC  linux/umsdos_fs.h                                       Dead since 2.6.11, but don't reuse these.
+0x04  D2-DC  linux/umsdos_fs.h                                         Dead since 2.6.11, but don't reuse these.
 0x06  all    linux/lp.h
 0x09  all    linux/raid/md_u.h
 0x10  00-0F  drivers/char/s390/vmcp.h
@@ -84,298 +84,297 @@ Code  Seq#    Include File                                           Comments
 0x10  20-2F  arch/s390/include/uapi/asm/hypfs.h
 0x12  all    linux/fs.h
              linux/blkpg.h
-0x1b  all                                                            InfiniBand Subsystem
-                                                                     <http://infiniband.sourceforge.net/>
+0x1b  all                                                              InfiniBand Subsystem
+                                                                       <http://infiniband.sourceforge.net/>
 0x20  all    drivers/cdrom/cm206.h
 0x22  all    scsi/sg.h
-0x3E  00-0F  linux/counter.h                                         <mailto:linux-iio@vger.kernel.org>
+0x3E  00-0F  linux/counter.h                                           <mailto:linux-iio@vger.kernel.org>
 '!'   00-1F  uapi/linux/seccomp.h
-'#'   00-3F                                                          IEEE 1394 Subsystem
-                                                                     Block for the entire subsystem
+'#'   00-3F                                                            IEEE 1394 Subsystem
+                                                                       Block for the entire subsystem
 '$'   00-0F  linux/perf_counter.h, linux/perf_event.h
-'%'   00-0F  include/uapi/linux/stm.h                                System Trace Module subsystem
-                                                                     <mailto:alexander.shishkin@linux.intel.com>
+'%'   00-0F  include/uapi/linux/stm.h                                  System Trace Module subsystem
+                                                                       <mailto:alexander.shishkin@linux.intel.com>
 '&'   00-07  drivers/firewire/nosy-user.h
-'1'   00-1F  linux/timepps.h                                         PPS kit from Ulrich Windl
-                                                                     <ftp://ftp.de.kernel.org/pub/linux/daemons/ntp/PPS/>
+'1'   00-1F  linux/timepps.h                                           PPS kit from Ulrich Windl
+                                                                       <ftp://ftp.de.kernel.org/pub/linux/daemons/ntp/PPS/>
 '2'   01-04  linux/i2o.h
-'3'   00-0F  drivers/s390/char/raw3270.h                             conflict!
-'3'   00-1F  linux/suspend_ioctls.h,                                 conflict!
+'3'   00-0F  drivers/s390/char/raw3270.h                               conflict!
+'3'   00-1F  linux/suspend_ioctls.h,                                   conflict!
              kernel/power/user.c
-'8'   all                                                            SNP8023 advanced NIC card
-                                                                     <mailto:mcr@solidum.com>
+'8'   all                                                              SNP8023 advanced NIC card
+                                                                       <mailto:mcr@solidum.com>
 ';'   64-7F  linux/vfio.h
-'='   00-3f  uapi/linux/ptp_clock.h                                  <mailto:richardcochran@gmail.com>
-'@'   00-0F  linux/radeonfb.h                                        conflict!
-'@'   00-0F  drivers/video/aty/aty128fb.c                            conflict!
-'A'   00-1F  linux/apm_bios.h                                        conflict!
-'A'   00-0F  linux/agpgart.h,                                        conflict!
+'='   00-3f  uapi/linux/ptp_clock.h                                    <mailto:richardcochran@gmail.com>
+'@'   00-0F  linux/radeonfb.h                                          conflict!
+'@'   00-0F  drivers/video/aty/aty128fb.c                              conflict!
+'A'   00-1F  linux/apm_bios.h                                          conflict!
+'A'   00-0F  linux/agpgart.h,                                          conflict!
              drivers/char/agp/compat_ioctl.h
-'A'   00-7F  sound/asound.h                                          conflict!
-'B'   00-1F  linux/cciss_ioctl.h                                     conflict!
-'B'   00-0F  include/linux/pmu.h                                     conflict!
-'B'   C0-FF  advanced bbus                                           <mailto:maassen@uni-freiburg.de>
-'B'   00-0F  xen/xenbus_dev.h                                        conflict!
-'C'   all    linux/soundcard.h                                       conflict!
-'C'   01-2F  linux/capi.h                                            conflict!
-'C'   F0-FF  drivers/net/wan/cosa.h                                  conflict!
+'A'   00-7F  sound/asound.h                                            conflict!
+'B'   00-1F  linux/cciss_ioctl.h                                       conflict!
+'B'   00-0F  include/linux/pmu.h                                       conflict!
+'B'   C0-FF  advanced bbus                                             <mailto:maassen@uni-freiburg.de>
+'B'   00-0F  xen/xenbus_dev.h                                          conflict!
+'C'   all    linux/soundcard.h                                         conflict!
+'C'   01-2F  linux/capi.h                                              conflict!
+'C'   F0-FF  drivers/net/wan/cosa.h                                    conflict!
 'D'   all    arch/s390/include/asm/dasd.h
-'D'   40-5F  drivers/scsi/dpt/dtpi_ioctl.h                           Dead since 2022
+'D'   40-5F  drivers/scsi/dpt/dtpi_ioctl.h                             Dead since 2022
 'D'   05     drivers/scsi/pmcraid.h
-'E'   all    linux/input.h                                           conflict!
-'E'   00-0F  xen/evtchn.h                                            conflict!
-'F'   all    linux/fb.h                                              conflict!
-'F'   01-02  drivers/scsi/pmcraid.h                                  conflict!
-'F'   20     drivers/video/fsl-diu-fb.h                              conflict!
-'F'   20     drivers/video/intelfb/intelfb.h                         conflict!
-'F'   20     linux/ivtvfb.h                                          conflict!
-'F'   20     linux/matroxfb.h                                        conflict!
-'F'   20     drivers/video/aty/atyfb_base.c                          conflict!
-'F'   00-0F  video/da8xx-fb.h                                        conflict!
-'F'   80-8F  linux/arcfb.h                                           conflict!
-'F'   DD     video/sstfb.h                                           conflict!
-'G'   00-3F  drivers/misc/sgi-gru/grulib.h                           conflict!
-'G'   00-0F  xen/gntalloc.h, xen/gntdev.h                            conflict!
-'H'   00-7F  linux/hiddev.h                                          conflict!
-'H'   00-0F  linux/hidraw.h                                          conflict!
-'H'   01     linux/mei.h                                             conflict!
-'H'   02     linux/mei.h                                             conflict!
-'H'   03     linux/mei.h                                             conflict!
-'H'   00-0F  sound/asound.h                                          conflict!
-'H'   20-40  sound/asound_fm.h                                       conflict!
-'H'   80-8F  sound/sfnt_info.h                                       conflict!
-'H'   10-8F  sound/emu10k1.h                                         conflict!
-'H'   10-1F  sound/sb16_csp.h                                        conflict!
-'H'   10-1F  sound/hda_hwdep.h                                       conflict!
-'H'   40-4F  sound/hdspm.h                                           conflict!
-'H'   40-4F  sound/hdsp.h                                            conflict!
+'E'   all    linux/input.h                                             conflict!
+'E'   00-0F  xen/evtchn.h                                              conflict!
+'F'   all    linux/fb.h                                                conflict!
+'F'   01-02  drivers/scsi/pmcraid.h                                    conflict!
+'F'   20     drivers/video/fsl-diu-fb.h                                conflict!
+'F'   20     drivers/video/intelfb/intelfb.h                           conflict!
+'F'   20     linux/ivtvfb.h                                            conflict!
+'F'   20     linux/matroxfb.h                                          conflict!
+'F'   20     drivers/video/aty/atyfb_base.c                            conflict!
+'F'   00-0F  video/da8xx-fb.h                                          conflict!
+'F'   80-8F  linux/arcfb.h                                             conflict!
+'F'   DD     video/sstfb.h                                             conflict!
+'G'   00-3F  drivers/misc/sgi-gru/grulib.h                             conflict!
+'G'   00-0F  xen/gntalloc.h, xen/gntdev.h                              conflict!
+'H'   00-7F  linux/hiddev.h                                            conflict!
+'H'   00-0F  linux/hidraw.h                                            conflict!
+'H'   01     linux/mei.h                                               conflict!
+'H'   02     linux/mei.h                                               conflict!
+'H'   03     linux/mei.h                                               conflict!
+'H'   00-0F  sound/asound.h                                            conflict!
+'H'   20-40  sound/asound_fm.h                                         conflict!
+'H'   80-8F  sound/sfnt_info.h                                         conflict!
+'H'   10-8F  sound/emu10k1.h                                           conflict!
+'H'   10-1F  sound/sb16_csp.h                                          conflict!
+'H'   10-1F  sound/hda_hwdep.h                                         conflict!
+'H'   40-4F  sound/hdspm.h                                             conflict!
+'H'   40-4F  sound/hdsp.h                                              conflict!
 'H'   90     sound/usb/usx2y/usb_stream.h
-'H'   00-0F  uapi/misc/habanalabs.h                                  conflict!
+'H'   00-0F  uapi/misc/habanalabs.h                                    conflict!
 'H'   A0     uapi/linux/usb/cdc-wdm.h
-'H'   C0-F0  net/bluetooth/hci.h                                     conflict!
-'H'   C0-DF  net/bluetooth/hidp/hidp.h                               conflict!
-'H'   C0-DF  net/bluetooth/cmtp/cmtp.h                               conflict!
-'H'   C0-DF  net/bluetooth/bnep/bnep.h                               conflict!
-'H'   F1     linux/hid-roccat.h                                      <mailto:erazor_de@users.sourceforge.net>
+'H'   C0-F0  net/bluetooth/hci.h                                       conflict!
+'H'   C0-DF  net/bluetooth/hidp/hidp.h                                 conflict!
+'H'   C0-DF  net/bluetooth/cmtp/cmtp.h                                 conflict!
+'H'   C0-DF  net/bluetooth/bnep/bnep.h                                 conflict!
+'H'   F1     linux/hid-roccat.h                                        <mailto:erazor_de@users.sourceforge.net>
 'H'   F8-FA  sound/firewire.h
-'I'   all    linux/isdn.h                                            conflict!
-'I'   00-0F  drivers/isdn/divert/isdn_divert.h                       conflict!
-'I'   40-4F  linux/mISDNif.h                                         conflict!
+'I'   all    linux/isdn.h                                              conflict!
+'I'   00-0F  drivers/isdn/divert/isdn_divert.h                         conflict!
+'I'   40-4F  linux/mISDNif.h                                           conflict!
 'K'   all    linux/kd.h
-'L'   00-1F  linux/loop.h                                            conflict!
-'L'   10-1F  drivers/scsi/mpt3sas/mpt3sas_ctl.h                      conflict!
-'L'   E0-FF  linux/ppdd.h                                            encrypted disk device driver
-                                                                     <http://linux01.gwdg.de/~alatham/ppdd.html>
-'M'   all    linux/soundcard.h                                       conflict!
-'M'   01-16  mtd/mtd-abi.h                                           conflict!
+'L'   00-1F  linux/loop.h                                              conflict!
+'L'   10-1F  drivers/scsi/mpt3sas/mpt3sas_ctl.h                        conflict!
+'L'   E0-FF  linux/ppdd.h                                              encrypted disk device driver
+                                                                       <http://linux01.gwdg.de/~alatham/ppdd.html>
+'M'   all    linux/soundcard.h                                         conflict!
+'M'   01-16  mtd/mtd-abi.h                                             conflict!
       and    drivers/mtd/mtdchar.c
 'M'   01-03  drivers/scsi/megaraid/megaraid_sas.h
-'M'   00-0F  drivers/video/fsl-diu-fb.h                              conflict!
+'M'   00-0F  drivers/video/fsl-diu-fb.h                                conflict!
 'N'   00-1F  drivers/usb/scanner.h
 'N'   40-7F  drivers/block/nvme.c
-'O'   00-06  mtd/ubi-user.h                                          UBI
-'P'   all    linux/soundcard.h                                       conflict!
-'P'   60-6F  sound/sscape_ioctl.h                                    conflict!
-'P'   00-0F  drivers/usb/class/usblp.c                               conflict!
-'P'   01-09  drivers/misc/pci_endpoint_test.c                        conflict!
-'P'   00-0F  xen/privcmd.h                                           conflict!
+'O'   00-06  mtd/ubi-user.h                                            UBI
+'P'   all    linux/soundcard.h                                         conflict!
+'P'   60-6F  sound/sscape_ioctl.h                                      conflict!
+'P'   00-0F  drivers/usb/class/usblp.c                                 conflict!
+'P'   01-09  drivers/misc/pci_endpoint_test.c                          conflict!
+'P'   00-0F  xen/privcmd.h                                             conflict!
 'Q'   all    linux/soundcard.h
-'R'   00-1F  linux/random.h                                          conflict!
-'R'   01     linux/rfkill.h                                          conflict!
+'R'   00-1F  linux/random.h                                            conflict!
+'R'   01     linux/rfkill.h                                            conflict!
 'R'   C0-DF  net/bluetooth/rfcomm.h
 'R'   E0     uapi/linux/fsl_mc.h
-'S'   all    linux/cdrom.h                                           conflict!
-'S'   80-81  scsi/scsi_ioctl.h                                       conflict!
-'S'   82-FF  scsi/scsi.h                                             conflict!
-'S'   00-7F  sound/asequencer.h                                      conflict!
-'T'   all    linux/soundcard.h                                       conflict!
-'T'   00-AF  sound/asound.h                                          conflict!
-'T'   all    arch/x86/include/asm/ioctls.h                           conflict!
-'T'   C0-DF  linux/if_tun.h                                          conflict!
-'U'   all    sound/asound.h                                          conflict!
-'U'   00-CF  linux/uinput.h                                          conflict!
+'S'   all    linux/cdrom.h                                             conflict!
+'S'   80-81  scsi/scsi_ioctl.h                                         conflict!
+'S'   82-FF  scsi/scsi.h                                               conflict!
+'S'   00-7F  sound/asequencer.h                                        conflict!
+'T'   all    linux/soundcard.h                                         conflict!
+'T'   00-AF  sound/asound.h                                            conflict!
+'T'   all    arch/x86/include/asm/ioctls.h                             conflict!
+'T'   C0-DF  linux/if_tun.h                                            conflict!
+'U'   all    sound/asound.h                                            conflict!
+'U'   00-CF  linux/uinput.h                                            conflict!
 'U'   00-EF  linux/usbdevice_fs.h
 'U'   C0-CF  drivers/bluetooth/hci_uart.h
-'V'   all    linux/vt.h                                              conflict!
-'V'   all    linux/videodev2.h                                       conflict!
-'V'   C0     linux/ivtvfb.h                                          conflict!
-'V'   C0     linux/ivtv.h                                            conflict!
-'V'   C0     media/davinci/vpfe_capture.h                            conflict!
-'V'   C0     media/si4713.h                                          conflict!
-'W'   00-1F  linux/watchdog.h                                        conflict!
-'W'   00-1F  linux/wanrouter.h                                       conflict! (pre 3.9)
-'W'   00-3F  sound/asound.h                                          conflict!
+'V'   all    linux/vt.h                                                conflict!
+'V'   all    linux/videodev2.h                                         conflict!
+'V'   C0     linux/ivtvfb.h                                            conflict!
+'V'   C0     linux/ivtv.h                                              conflict!
+'V'   C0     media/davinci/vpfe_capture.h                              conflict!
+'V'   C0     media/si4713.h                                            conflict!
+'W'   00-1F  linux/watchdog.h                                          conflict!
+'W'   00-1F  linux/wanrouter.h                                         conflict! (pre 3.9)
+'W'   00-3F  sound/asound.h                                            conflict!
 'W'   40-5F  drivers/pci/switch/switchtec.c
 'W'   60-61  linux/watch_queue.h
-'X'   all    fs/xfs/xfs_fs.h,                                        conflict!
+'X'   all    fs/xfs/xfs_fs.h,                                          conflict!
              fs/xfs/linux-2.6/xfs_ioctl32.h,
              include/linux/falloc.h,
              linux/fs.h,
-'X'   all    fs/ocfs2/ocfs_fs.h                                      conflict!
-'X'   01     linux/pktcdvd.h                                         conflict!
+'X'   all    fs/ocfs2/ocfs_fs.h                                        conflict!
+'X'   01     linux/pktcdvd.h                                           conflict!
 'Z'   14-15  drivers/message/fusion/mptctl.h
-'['   00-3F  linux/usb/tmc.h                                         USB Test and Measurement Devices
-                                                                     <mailto:gregkh@linuxfoundation.org>
-'a'   all    linux/atm*.h, linux/sonet.h                             ATM on linux
-                                                                     <http://lrcwww.epfl.ch/>
-'a'   00-0F  drivers/crypto/qat/qat_common/adf_cfg_common.h          conflict! qat driver
-'b'   00-FF                                                          conflict! bit3 vme host bridge
-                                                                     <mailto:natalia@nikhefk.nikhef.nl>
-'c'   all    linux/cm4000_cs.h                                       conflict!
-'c'   00-7F  linux/comstats.h                                        conflict!
-'c'   00-7F  linux/coda.h                                            conflict!
-'c'   00-1F  linux/chio.h                                            conflict!
-'c'   80-9F  arch/s390/include/asm/chsc.h                            conflict!
+'['   00-3F  linux/usb/tmc.h                                           USB Test and Measurement Devices
+                                                                       <mailto:gregkh@linuxfoundation.org>
+'a'   all    linux/atm*.h, linux/sonet.h                               ATM on linux
+                                                                       <http://lrcwww.epfl.ch/>
+'b'   00-FF                                                            conflict! bit3 vme host bridge
+                                                                       <mailto:natalia@nikhefk.nikhef.nl>
+'c'   all    linux/cm4000_cs.h                                         conflict!
+'c'   00-7F  linux/comstats.h                                          conflict!
+'c'   00-7F  linux/coda.h                                              conflict!
+'c'   00-1F  linux/chio.h                                              conflict!
+'c'   80-9F  arch/s390/include/asm/chsc.h                              conflict!
 'c'   A0-AF  arch/x86/include/asm/msr.h conflict!
-'d'   00-FF  linux/char/drm/drm.h                                    conflict!
-'d'   02-40  pcmcia/ds.h                                             conflict!
+'d'   00-FF  linux/char/drm/drm.h                                      conflict!
+'d'   02-40  pcmcia/ds.h                                               conflict!
 'd'   F0-FF  linux/digi1.h
-'e'   all    linux/digi1.h                                           conflict!
-'f'   00-1F  linux/ext2_fs.h                                         conflict!
-'f'   00-1F  linux/ext3_fs.h                                         conflict!
-'f'   00-0F  fs/jfs/jfs_dinode.h                                     conflict!
-'f'   00-0F  fs/ext4/ext4.h                                          conflict!
-'f'   00-0F  linux/fs.h                                              conflict!
-'f'   00-0F  fs/ocfs2/ocfs2_fs.h                                     conflict!
+'e'   all    linux/digi1.h                                             conflict!
+'f'   00-1F  linux/ext2_fs.h                                           conflict!
+'f'   00-1F  linux/ext3_fs.h                                           conflict!
+'f'   00-0F  fs/jfs/jfs_dinode.h                                       conflict!
+'f'   00-0F  fs/ext4/ext4.h                                            conflict!
+'f'   00-0F  linux/fs.h                                                conflict!
+'f'   00-0F  fs/ocfs2/ocfs2_fs.h                                       conflict!
 'f'   13-27  linux/fscrypt.h
 'f'   81-8F  linux/fsverity.h
 'g'   00-0F  linux/usb/gadgetfs.h
 'g'   20-2F  linux/usb/g_printer.h
-'h'   00-7F                                                          conflict! Charon filesystem
-                                                                     <mailto:zapman@interlan.net>
-'h'   00-1F  linux/hpet.h                                            conflict!
+'h'   00-7F                                                            conflict! Charon filesystem
+                                                                       <mailto:zapman@interlan.net>
+'h'   00-1F  linux/hpet.h                                              conflict!
 'h'   80-8F  fs/hfsplus/ioctl.c
-'i'   00-3F  linux/i2o-dev.h                                         conflict!
-'i'   0B-1F  linux/ipmi.h                                            conflict!
+'i'   00-3F  linux/i2o-dev.h                                           conflict!
+'i'   0B-1F  linux/ipmi.h                                              conflict!
 'i'   80-8F  linux/i8k.h
-'i'   90-9F  `linux/iio/*.h`                                         IIO
+'i'   90-9F  `linux/iio/*.h`                                           IIO
 'j'   00-3F  linux/joystick.h
-'k'   00-0F  linux/spi/spidev.h                                      conflict!
-'k'   00-05  video/kyro.h                                            conflict!
-'k'   10-17  linux/hsi/hsi_char.h                                    HSI character device
-'l'   00-3F  linux/tcfs_fs.h                                         transparent cryptographic file system
-                                                                     <http://web.archive.org/web/%2A/http://mikonos.dia.unisa.it/tcfs>
-'l'   40-7F  linux/udf_fs_i.h                                        in development:
-                                                                     <https://github.com/pali/udftools>
-'m'   00-09  linux/mmtimer.h                                         conflict!
-'m'   all    linux/mtio.h                                            conflict!
-'m'   all    linux/soundcard.h                                       conflict!
-'m'   all    linux/synclink.h                                        conflict!
-'m'   00-19  drivers/message/fusion/mptctl.h                         conflict!
-'m'   00     drivers/scsi/megaraid/megaraid_ioctl.h                  conflict!
+'k'   00-0F  linux/spi/spidev.h                                        conflict!
+'k'   00-05  video/kyro.h                                              conflict!
+'k'   10-17  linux/hsi/hsi_char.h                                      HSI character device
+'l'   00-3F  linux/tcfs_fs.h                                           transparent cryptographic file system
+                                                                       <http://web.archive.org/web/%2A/http://mikonos.dia.unisa.it/tcfs>
+'l'   40-7F  linux/udf_fs_i.h                                          in development:
+                                                                       <https://github.com/pali/udftools>
+'m'   00-09  linux/mmtimer.h                                           conflict!
+'m'   all    linux/mtio.h                                              conflict!
+'m'   all    linux/soundcard.h                                         conflict!
+'m'   all    linux/synclink.h                                          conflict!
+'m'   00-19  drivers/message/fusion/mptctl.h                           conflict!
+'m'   00     drivers/scsi/megaraid/megaraid_ioctl.h                    conflict!
 'n'   00-7F  linux/ncp_fs.h and fs/ncpfs/ioctl.c
-'n'   80-8F  uapi/linux/nilfs2_api.h                                 NILFS2
-'n'   E0-FF  linux/matroxfb.h                                        matroxfb
-'o'   00-1F  fs/ocfs2/ocfs2_fs.h                                     OCFS2
-'o'   00-03  mtd/ubi-user.h                                          conflict! (OCFS2 and UBI overlaps)
-'o'   40-41  mtd/ubi-user.h                                          UBI
-'o'   01-A1  `linux/dvb/*.h`                                         DVB
-'p'   00-0F  linux/phantom.h                                         conflict! (OpenHaptics needs this)
-'p'   00-1F  linux/rtc.h                                             conflict!
+'n'   80-8F  uapi/linux/nilfs2_api.h                                   NILFS2
+'n'   E0-FF  linux/matroxfb.h                                          matroxfb
+'o'   00-1F  fs/ocfs2/ocfs2_fs.h                                       OCFS2
+'o'   00-03  mtd/ubi-user.h                                            conflict! (OCFS2 and UBI overlaps)
+'o'   40-41  mtd/ubi-user.h                                            UBI
+'o'   01-A1  `linux/dvb/*.h`                                           DVB
+'p'   00-0F  linux/phantom.h                                           conflict! (OpenHaptics needs this)
+'p'   00-1F  linux/rtc.h                                               conflict!
 'p'   40-7F  linux/nvram.h
-'p'   80-9F  linux/ppdev.h                                           user-space parport
-                                                                     <mailto:tim@cyberelk.net>
-'p'   A1-A5  linux/pps.h                                             LinuxPPS
-                                                                     <mailto:giometti@linux.it>
+'p'   80-9F  linux/ppdev.h                                             user-space parport
+                                                                       <mailto:tim@cyberelk.net>
+'p'   A1-A5  linux/pps.h                                               LinuxPPS
+                                                                       <mailto:giometti@linux.it>
 'q'   00-1F  linux/serio.h
-'q'   80-FF  linux/telephony.h                                       Internet PhoneJACK, Internet LineJACK
-             linux/ixjuser.h                                         <http://web.archive.org/web/%2A/http://www.quicknet.net>
+'q'   80-FF  linux/telephony.h                                         Internet PhoneJACK, Internet LineJACK
+             linux/ixjuser.h                                           <http://web.archive.org/web/%2A/http://www.quicknet.net>
 'r'   00-1F  linux/msdos_fs.h and fs/fat/dir.c
 's'   all    linux/cdk.h
 't'   00-7F  linux/ppp-ioctl.h
 't'   80-8F  linux/isdn_ppp.h
-'t'   90-91  linux/toshiba.h                                         toshiba and toshiba_acpi SMM
-'u'   00-1F  linux/smb_fs.h                                          gone
-'u'   20-3F  linux/uvcvideo.h                                        USB video class host driver
-'u'   40-4f  linux/udmabuf.h                                         userspace dma-buf misc device
-'v'   00-1F  linux/ext2_fs.h                                         conflict!
-'v'   00-1F  linux/fs.h                                              conflict!
-'v'   00-0F  linux/sonypi.h                                          conflict!
-'v'   00-0F  media/v4l2-subdev.h                                     conflict!
-'v'   20-27  arch/powerpc/include/uapi/asm/vas-api.h		     VAS API
-'v'   C0-FF  linux/meye.h                                            conflict!
-'w'   all                                                            CERN SCI driver
-'y'   00-1F                                                          packet based user level communications
-                                                                     <mailto:zapman@interlan.net>
-'z'   00-3F                                                          CAN bus card conflict!
-                                                                     <mailto:hdstich@connectu.ulm.circular.de>
-'z'   40-7F                                                          CAN bus card conflict!
-                                                                     <mailto:oe@port.de>
-'z'   10-4F  drivers/s390/crypto/zcrypt_api.h                        conflict!
+'t'   90-91  linux/toshiba.h                                           toshiba and toshiba_acpi SMM
+'u'   00-1F  linux/smb_fs.h                                            gone
+'u'   20-3F  linux/uvcvideo.h                                          USB video class host driver
+'u'   40-4f  linux/udmabuf.h                                           userspace dma-buf misc device
+'v'   00-1F  linux/ext2_fs.h                                           conflict!
+'v'   00-1F  linux/fs.h                                                conflict!
+'v'   00-0F  linux/sonypi.h                                            conflict!
+'v'   00-0F  media/v4l2-subdev.h                                       conflict!
+'v'   20-27  arch/powerpc/include/uapi/asm/vas-api.h                   VAS API
+'v'   C0-FF  linux/meye.h                                              conflict!
+'w'   all                                                              CERN SCI driver
+'y'   00-1F                                                            packet based user level communications
+                                                                       <mailto:zapman@interlan.net>
+'z'   00-3F                                                            CAN bus card conflict!
+                                                                       <mailto:hdstich@connectu.ulm.circular.de>
+'z'   40-7F                                                            CAN bus card conflict!
+                                                                       <mailto:oe@port.de>
+'z'   10-4F  drivers/s390/crypto/zcrypt_api.h                          conflict!
 '|'   00-7F  linux/media.h
 0x80  00-1F  linux/fb.h
 0x81  00-1F  linux/vduse.h
 0x89  00-06  arch/x86/include/asm/sockios.h
 0x89  0B-DF  linux/sockios.h
-0x89  E0-EF  linux/sockios.h                                         SIOCPROTOPRIVATE range
-0x89  F0-FF  linux/sockios.h                                         SIOCDEVPRIVATE range
+0x89  E0-EF  linux/sockios.h                                           SIOCPROTOPRIVATE range
+0x89  F0-FF  linux/sockios.h                                           SIOCDEVPRIVATE range
 0x8B  all    linux/wireless.h
-0x8C  00-3F                                                          WiNRADiO driver
-                                                                     <http://www.winradio.com.au/>
+0x8C  00-3F                                                            WiNRADiO driver
+                                                                       <http://www.winradio.com.au/>
 0x90  00     drivers/cdrom/sbpcd.h
 0x92  00-0F  drivers/usb/mon/mon_bin.c
 0x93  60-7F  linux/auto_fs.h
-0x94  all    fs/btrfs/ioctl.h                                        Btrfs filesystem
-             and linux/fs.h                                          some lifted to vfs/generic
-0x97  00-7F  fs/ceph/ioctl.h                                         Ceph file system
-0x99  00-0F                                                          537-Addinboard driver
-                                                                     <mailto:buk@buks.ipn.de>
-0xA0  all    linux/sdp/sdp.h                                         Industrial Device Project
-                                                                     <mailto:kenji@bitgate.com>
-0xA1  0      linux/vtpm_proxy.h                                      TPM Emulator Proxy Driver
-0xA2  all    uapi/linux/acrn.h                                       ACRN hypervisor
-0xA3  80-8F                                                          Port ACL  in development:
-                                                                     <mailto:tlewis@mindspring.com>
+0x94  all    fs/btrfs/ioctl.h                                          Btrfs filesystem
+             and linux/fs.h                                            some lifted to vfs/generic
+0x97  00-7F  fs/ceph/ioctl.h                                           Ceph file system
+0x99  00-0F                                                            537-Addinboard driver
+                                                                       <mailto:buk@buks.ipn.de>
+0xA0  all    linux/sdp/sdp.h                                           Industrial Device Project
+                                                                       <mailto:kenji@bitgate.com>
+0xA1  0      linux/vtpm_proxy.h                                        TPM Emulator Proxy Driver
+0xA2  all    uapi/linux/acrn.h                                         ACRN hypervisor
+0xA3  80-8F                                                            Port ACL  in development:
+                                                                       <mailto:tlewis@mindspring.com>
 0xA3  90-9F  linux/dtlk.h
-0xA4  00-1F  uapi/linux/tee.h                                        Generic TEE subsystem
-0xA4  00-1F  uapi/asm/sgx.h                                          <mailto:linux-sgx@vger.kernel.org>
-0xA5  01-05  linux/surface_aggregator/cdev.h                         Microsoft Surface Platform System Aggregator
-                                                                     <mailto:luzmaximilian@gmail.com>
-0xA5  20-2F  linux/surface_aggregator/dtx.h                          Microsoft Surface DTX driver
-                                                                     <mailto:luzmaximilian@gmail.com>
+0xA4  00-1F  uapi/linux/tee.h                                          Generic TEE subsystem
+0xA4  00-1F  uapi/asm/sgx.h                                            <mailto:linux-sgx@vger.kernel.org>
+0xA5  01-05  linux/surface_aggregator/cdev.h                           Microsoft Surface Platform System Aggregator
+                                                                       <mailto:luzmaximilian@gmail.com>
+0xA5  20-2F  linux/surface_aggregator/dtx.h                            Microsoft Surface DTX driver
+                                                                       <mailto:luzmaximilian@gmail.com>
 0xAA  00-3F  linux/uapi/linux/userfaultfd.h
 0xAB  00-1F  linux/nbd.h
 0xAC  00-1F  linux/raw.h
-0xAD  00                                                             Netfilter device in development:
-                                                                     <mailto:rusty@rustcorp.com.au>
-0xAE  00-1F  linux/kvm.h                                             Kernel-based Virtual Machine
-                                                                     <mailto:kvm@vger.kernel.org>
-0xAE  40-FF  linux/kvm.h                                             Kernel-based Virtual Machine
-                                                                     <mailto:kvm@vger.kernel.org>
-0xAE  20-3F  linux/nitro_enclaves.h                                  Nitro Enclaves
-0xAF  00-1F  linux/fsl_hypervisor.h                                  Freescale hypervisor
-0xB0  all                                                            RATIO devices in development:
-                                                                     <mailto:vgo@ratio.de>
-0xB1  00-1F                                                          PPPoX
-                                                                     <mailto:mostrows@styx.uwaterloo.ca>
+0xAD  00                                                               Netfilter device in development:
+                                                                       <mailto:rusty@rustcorp.com.au>
+0xAE  00-1F  linux/kvm.h                                               Kernel-based Virtual Machine
+                                                                       <mailto:kvm@vger.kernel.org>
+0xAE  40-FF  linux/kvm.h                                               Kernel-based Virtual Machine
+                                                                       <mailto:kvm@vger.kernel.org>
+0xAE  20-3F  linux/nitro_enclaves.h                                    Nitro Enclaves
+0xAF  00-1F  linux/fsl_hypervisor.h                                    Freescale hypervisor
+0xB0  all                                                              RATIO devices in development:
+                                                                       <mailto:vgo@ratio.de>
+0xB1  00-1F                                                            PPPoX
+                                                                       <mailto:mostrows@styx.uwaterloo.ca>
 0xB3  00     linux/mmc/ioctl.h
-0xB4  00-0F  linux/gpio.h                                            <mailto:linux-gpio@vger.kernel.org>
-0xB5  00-0F  uapi/linux/rpmsg.h                                      <mailto:linux-remoteproc@vger.kernel.org>
+0xB4  00-0F  linux/gpio.h                                              <mailto:linux-gpio@vger.kernel.org>
+0xB5  00-0F  uapi/linux/rpmsg.h                                        <mailto:linux-remoteproc@vger.kernel.org>
 0xB6  all    linux/fpga-dfl.h
-0xB7  all    uapi/linux/remoteproc_cdev.h                            <mailto:linux-remoteproc@vger.kernel.org>
-0xB7  all    uapi/linux/nsfs.h                                       <mailto:Andrei Vagin <avagin@openvz.org>>
+0xB7  all    uapi/linux/remoteproc_cdev.h                              <mailto:linux-remoteproc@vger.kernel.org>
+0xB7  all    uapi/linux/nsfs.h                                         <mailto:Andrei Vagin <avagin@openvz.org>>
 0xC0  00-0F  linux/usb/iowarrior.h
 0xCA  00-0F  uapi/misc/cxl.h
 0xCA  10-2F  uapi/misc/ocxl.h
 0xCA  80-BF  uapi/scsi/cxlflash_ioctl.h
-0xCB  00-1F                                                          CBM serial IEC bus in development:
-                                                                     <mailto:michael.klein@puffin.lb.shuttle.de>
-0xCC  00-0F  drivers/misc/ibmvmc.h                                   pseries VMC driver
+0xCB  00-1F                                                            CBM serial IEC bus in development:
+                                                                       <mailto:michael.klein@puffin.lb.shuttle.de>
+0xCC  00-0F  drivers/misc/ibmvmc.h                                     pseries VMC driver
 0xCD  01     linux/reiserfs_fs.h
-0xCE  01-02  uapi/linux/cxl_mem.h                                    Compute Express Link Memory Devices
+0xCE  01-02  uapi/linux/cxl_mem.h                                      Compute Express Link Memory Devices
 0xCF  02     fs/cifs/ioctl.c
 0xDB  00-0F  drivers/char/mwave/mwavepub.h
-0xDD  00-3F                                                          ZFCP device driver see drivers/s390/scsi/
-                                                                     <mailto:aherrman@de.ibm.com>
+0xDD  00-3F                                                            ZFCP device driver see drivers/s390/scsi/
+                                                                       <mailto:aherrman@de.ibm.com>
 0xE5  00-3F  linux/fuse.h
-0xEC  00-01  drivers/platform/chrome/cros_ec_dev.h                   ChromeOS EC driver
-0xEE  00-09  uapi/linux/pfrut.h                                      Platform Firmware Runtime Update and Telemetry
-0xF3  00-3F  drivers/usb/misc/sisusbvga/sisusb.h                     sisfb (in development)
-                                                                     <mailto:thomas@winischhofer.net>
-0xF6  all                                                            LTTng Linux Trace Toolkit Next Generation
-                                                                     <mailto:mathieu.desnoyers@efficios.com>
-0xF8  all    arch/x86/include/uapi/asm/amd_hsmp.h                    AMD HSMP EPYC system management interface driver
-                                                                     <mailto:nchatrad@amd.com>
+0xEC  00-01  drivers/platform/chrome/cros_ec_dev.h                     ChromeOS EC driver
+0xEE  00-09  uapi/linux/pfrut.h                                        Platform Firmware Runtime Update and Telemetry
+0xF3  00-3F  drivers/usb/misc/sisusbvga/sisusb.h                       sisfb (in development)
+                                                                       <mailto:thomas@winischhofer.net>
+0xF6  all                                                              LTTng Linux Trace Toolkit Next Generation
+                                                                       <mailto:mathieu.desnoyers@efficios.com>
+0xF8  all    arch/x86/include/uapi/asm/amd_hsmp.h                      AMD HSMP EPYC system management interface driver
+                                                                       <mailto:nchatrad@amd.com>
 0xFD  all    linux/dm-ioctl.h
 0xFE  all    linux/isst_if.h
-====  =====  ======================================================= ================================================================
+====  =====  ========================================================= ================================================================
diff --git a/Makefile b/Makefile
index 7609a5c1ce4e..f0f6097ed5c7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
 PATCHLEVEL = 1
-SUBLEVEL = 176
-EXTRAVERSION =
+SUBLEVEL = 177
+EXTRAVERSION = -rc1
 NAME = Curry Ramen
 
 # *DOCUMENTATION*
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index f8dd0b3cc8e0..ee264737be6d 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -22,6 +22,7 @@
 
 #include <asm/cp15.h>
 #include <asm/system_info.h>
+#include <asm/system_misc.h>
 #include <asm/unaligned.h>
 #include <asm/opcodes.h>
 
@@ -809,6 +810,9 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	int thumb2_32b = 0;
 	int fault;
 
+	if (addr >= TASK_SIZE && user_mode(regs))
+		harden_branch_predictor();
+
 	if (interrupts_enabled(regs))
 		local_irq_enable();
 
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 16a7765511f8..d0681285dbda 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -125,6 +125,19 @@ static inline bool is_translation_fault(unsigned int fsr)
 	return false;
 }
 
+static inline bool is_permission_fault(unsigned int fsr)
+{
+	int fs = fsr_fs(fsr);
+#ifdef CONFIG_ARM_LPAE
+	if ((fs & FS_MMU_NOLL_MASK) == FS_PERM_NOLL)
+		return true;
+#else
+	if (fs == FS_L1_PERM || fs == FS_L2_PERM)
+		return true;
+#endif
+	return false;
+}
+
 static void die_kernel_fault(const char *msg, struct mm_struct *mm,
 			     unsigned long addr, unsigned int fsr,
 			     struct pt_regs *regs)
@@ -159,6 +172,8 @@ __do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
 	 */
 	if (addr < PAGE_SIZE) {
 		msg = "NULL pointer dereference";
+	} else if (is_permission_fault(fsr) && fsr & FSR_LNX_PF) {
+		msg = "execution of memory";
 	} else {
 		if (is_translation_fault(fsr) &&
 		    kfence_handle_page_fault(addr, is_write_fault(fsr), regs))
@@ -180,9 +195,6 @@ __do_user_fault(unsigned long addr, unsigned int fsr, unsigned int sig,
 {
 	struct task_struct *tsk = current;
 
-	if (addr > TASK_SIZE)
-		harden_branch_predictor();
-
 #ifdef CONFIG_DEBUG_USER
 	if (((user_debug & UDBG_SEGV) && (sig == SIGSEGV)) ||
 	    ((user_debug & UDBG_BUS)  && (sig == SIGBUS))) {
@@ -225,17 +237,35 @@ void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 #define VM_FAULT_BADMAP		((__force vm_fault_t)0x010000)
 #define VM_FAULT_BADACCESS	((__force vm_fault_t)0x020000)
 
-static inline bool is_permission_fault(unsigned int fsr)
+static int __kprobes
+do_kernel_address_page_fault(struct mm_struct *mm, unsigned long addr,
+			     unsigned int fsr, struct pt_regs *regs)
 {
-	int fs = fsr_fs(fsr);
-#ifdef CONFIG_ARM_LPAE
-	if ((fs & FS_MMU_NOLL_MASK) == FS_PERM_NOLL)
-		return true;
-#else
-	if (fs == FS_L1_PERM || fs == FS_L2_PERM)
-		return true;
-#endif
-	return false;
+	if (user_mode(regs)) {
+		/*
+		 * Fault from user mode for a kernel space address. User mode
+		 * should not be faulting in kernel space, which includes the
+		 * vector/khelper page. Handle the branch predictor hardening
+		 * while interrupts are still disabled, then send a SIGSEGV.
+		 */
+		harden_branch_predictor();
+		__do_user_fault(addr, fsr, SIGSEGV, SEGV_MAPERR, regs);
+	} else {
+		/*
+		 * Fault from kernel mode. Enable interrupts if they were
+		 * enabled in the parent context. Section (upper page table)
+		 * translation faults are handled via do_translation_fault(),
+		 * so we will only get here for a non-present kernel space
+		 * PTE or PTE permission fault. This may happen in exceptional
+		 * circumstances and need the fixup tables to be walked.
+		 */
+		if (interrupts_enabled(regs))
+			local_irq_enable();
+
+		__do_kernel_fault(mm, addr, fsr, regs);
+	}
+
+	return 0;
 }
 
 static int __kprobes
@@ -251,6 +281,12 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	if (kprobe_page_fault(regs, fsr))
 		return 0;
 
+	/*
+	 * Handle kernel addresses faults separately, which avoids touching
+	 * the mmap lock from contexts that are not able to sleep.
+	 */
+	if (addr >= TASK_SIZE)
+		return do_kernel_address_page_fault(mm, addr, fsr, regs);
 
 	/* Enable interrupts if they were enabled in the parent context. */
 	if (interrupts_enabled(regs))
@@ -382,16 +418,20 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
  * We enter here because the first level page table doesn't contain
  * a valid entry for the address.
  *
- * If the address is in kernel space (>= TASK_SIZE), then we are
- * probably faulting in the vmalloc() area.
+ * If this is a user address (addr < TASK_SIZE), we handle this as a
+ * normal page fault. This leaves the remainder of the function to handle
+ * kernel address translation faults.
  *
- * If the init_task's first level page tables contains the relevant
- * entry, we copy the it to this task.  If not, we send the process
- * a signal, fixup the exception, or oops the kernel.
+ * Since user mode is not permitted to access kernel addresses, pass these
+ * directly to do_kernel_address_page_fault() to handle.
  *
- * NOTE! We MUST NOT take any locks for this case. We may be in an
- * interrupt or a critical region, and should only copy the information
- * from the master page table, nothing more.
+ * Otherwise, we're probably faulting in the vmalloc() area, so try to fix
+ * that up. Note that we must not take any locks or enable interrupts in
+ * this case.
+ *
+ * If vmalloc() fixup fails, that means the non-leaf page tables did not
+ * contain an entry for this address, so handle this via
+ * do_kernel_address_page_fault().
  */
 #ifdef CONFIG_MMU
 static int __kprobes
@@ -457,7 +497,8 @@ do_translation_fault(unsigned long addr, unsigned int fsr,
 	return 0;
 
 bad_area:
-	do_bad_area(addr, fsr, regs);
+	do_kernel_address_page_fault(current->mm, addr, fsr, regs);
+
 	return 0;
 }
 #else					/* CONFIG_MMU */
@@ -477,7 +518,16 @@ do_translation_fault(unsigned long addr, unsigned int fsr,
 static int
 do_sect_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
+	/*
+	 * If this is a kernel address, but from user mode, then userspace
+	 * is trying bad stuff. Invoke the branch predictor handling.
+	 * Interrupts are disabled here.
+	 */
+	if (addr >= TASK_SIZE && user_mode(regs))
+		harden_branch_predictor();
+
 	do_bad_area(addr, fsr, regs);
+
 	return 0;
 }
 #endif /* CONFIG_ARM_LPAE */
diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c
index 18a2b37f4aea..1c1652d08c42 100644
--- a/arch/loongarch/kernel/smp.c
+++ b/arch/loongarch/kernel/smp.c
@@ -517,6 +517,7 @@ static void stop_this_cpu(void *dummy)
 	set_cpu_online(smp_processor_id(), false);
 	calculate_cpu_foreign_map();
 	local_irq_disable();
+	rcutree_report_cpu_dead();
 	while (true);
 }
 
diff --git a/arch/mips/dec/prom/console.c b/arch/mips/dec/prom/console.c
index 31a8441d8431..b4f0dba3fa20 100644
--- a/arch/mips/dec/prom/console.c
+++ b/arch/mips/dec/prom/console.c
@@ -2,8 +2,9 @@
 /*
  *	DECstation PROM-based early console support.
  *
- *	Copyright (C) 2004, 2007  Maciej W. Rozycki
+ *	Copyright (C) 2004, 2007, 2026  Maciej W. Rozycki
  */
+#include <linux/bug.h>
 #include <linux/console.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -14,9 +15,11 @@
 static void __init prom_console_write(struct console *con, const char *s,
 				      unsigned int c)
 {
-	char buf[81];
+	static char buf[81] __initdata = { 0 };
 	unsigned int chunk = sizeof(buf) - 1;
 
+	BUG_ON((long)buf != (int)(long)buf);
+
 	while (c > 0) {
 		if (chunk > c)
 			chunk = c;
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 002c91fcb842..bc059d04cfbc 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -19,6 +19,7 @@
 #include <linux/sched/mm.h>
 #include <linux/cpumask.h>
 #include <linux/cpu.h>
+#include <linux/rcupdate.h>
 #include <linux/err.h>
 #include <linux/ftrace.h>
 #include <linux/irqdomain.h>
@@ -392,6 +393,7 @@ static void stop_this_cpu(void *dummy)
 	set_cpu_online(smp_processor_id(), false);
 	calculate_cpu_foreign_map();
 	local_irq_disable();
+	rcutree_report_cpu_dead();
 	while (1);
 }
 
diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h
index c068565fe954..1cfe83263b21 100644
--- a/arch/x86/include/asm/kvm-x86-ops.h
+++ b/arch/x86/include/asm/kvm-x86-ops.h
@@ -81,7 +81,6 @@ KVM_X86_OP(check_apicv_inhibit_reasons)
 KVM_X86_OP(refresh_apicv_exec_ctrl)
 KVM_X86_OP_OPTIONAL(hwapic_irr_update)
 KVM_X86_OP_OPTIONAL(hwapic_isr_update)
-KVM_X86_OP_OPTIONAL_RET0(guest_apic_has_interrupt)
 KVM_X86_OP_OPTIONAL(load_eoi_exitmap)
 KVM_X86_OP_OPTIONAL(set_virtual_apic_mode)
 KVM_X86_OP_OPTIONAL(set_apic_access_page_addr)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index fe5c0f86ae38..31395c43416d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1549,7 +1549,6 @@ struct kvm_x86_ops {
 	void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
 	void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
 	void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr);
-	bool (*guest_apic_has_interrupt)(struct kvm_vcpu *vcpu);
 	void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
 	void (*set_virtual_apic_mode)(struct kvm_vcpu *vcpu);
 	void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 58d67e5ab2c5..7785da8f0ad3 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -2239,13 +2239,15 @@ static struct kvm_mmu_page *kvm_mmu_get_child_sp(struct kvm_vcpu *vcpu,
 						 u64 *sptep, gfn_t gfn,
 						 bool direct, unsigned int access)
 {
-	union kvm_mmu_page_role role;
+	union kvm_mmu_page_role role = kvm_mmu_child_role(sptep, direct, access);
 
-	if (is_shadow_present_pte(*sptep) && !is_large_pte(*sptep) &&
-	    spte_to_child_sp(*sptep) && spte_to_child_sp(*sptep)->gfn == gfn)
+	if (is_shadow_present_pte(*sptep) &&
+	    !is_large_pte(*sptep) &&
+	    spte_to_child_sp(*sptep) &&
+	    spte_to_child_sp(*sptep)->gfn == gfn &&
+	    spte_to_child_sp(*sptep)->role.word == role.word)
 		return ERR_PTR(-EEXIST);
 
-	role = kvm_mmu_child_role(sptep, direct, access);
 	return kvm_mmu_get_shadow_page(vcpu, gfn, role);
 }
 
@@ -6415,13 +6417,19 @@ static bool kvm_mmu_zap_collapsible_spte(struct kvm *kvm,
 		sp = sptep_to_sp(sptep);
 
 		/*
-		 * We cannot do huge page mapping for indirect shadow pages,
-		 * which are found on the last rmap (level = 1) when not using
-		 * tdp; such shadow pages are synced with the page table in
-		 * the guest, and the guest page table is using 4K page size
-		 * mapping if the indirect sp has level = 1.
+		 * Direct shadow page can be replaced by a hugepage if the host
+		 * mapping level allows it and the memslot maps all of the host
+		 * hugepage.  Note!  If the memslot maps only part of the
+		 * hugepage, sp->gfn may be below slot->base_gfn, and querying
+		 * the max mapping level would cause an out-of-bounds lpage_info
+		 * access.  So the gfn bounds check *must* be done first.
+		 *
+		 * Indirect shadow pages are created when the guest page tables
+		 * are using 4K pages.  Since the host mapping is always
+		 * constrained by the page size in the guest, indirect shadow
+		 * pages are never collapsible.
 		 */
-		if (sp->role.direct &&
+		if (sp->role.direct && is_gfn_in_memslot(slot, sp->gfn) &&
 		    sp->role.level < kvm_mmu_max_mapping_level(kvm, slot, sp->gfn,
 							       PG_LEVEL_NUM)) {
 			kvm_zap_one_rmap_spte(kvm, rmap_head, sptep);
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index e7138e5811d4..140e9b7877c1 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -977,6 +977,7 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec)
 		s_off = vaddr & ~PAGE_MASK;
 		d_off = dst_vaddr & ~PAGE_MASK;
 		len = min_t(size_t, (PAGE_SIZE - s_off), size);
+		len = min_t(size_t, len, PAGE_SIZE - d_off);
 
 		if (dec)
 			ret = __sev_dbg_decrypt_user(kvm,
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index bdc462944cb0..f7a790a28b9e 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -12,6 +12,7 @@
 #include "mmu.h"
 #include "nested.h"
 #include "pmu.h"
+#include "posted_intr.h"
 #include "sgx.h"
 #include "trace.h"
 #include "vmx.h"
@@ -3818,8 +3819,8 @@ static int vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
 	if (!pi_test_and_clear_on(vmx->nested.pi_desc))
 		return 0;
 
-	max_irr = find_last_bit((unsigned long *)vmx->nested.pi_desc->pir, 256);
-	if (max_irr != 256) {
+	max_irr = pi_find_highest_vector(vmx->nested.pi_desc);
+	if (max_irr > 0) {
 		vapic_page = vmx->nested.virtual_apic_map.hva;
 		if (!vapic_page)
 			goto mmio_needed;
@@ -3952,8 +3953,44 @@ static bool nested_vmx_preemption_timer_pending(struct kvm_vcpu *vcpu)
 
 static bool vmx_has_nested_events(struct kvm_vcpu *vcpu, bool for_injection)
 {
-	return nested_vmx_preemption_timer_pending(vcpu) ||
-	       to_vmx(vcpu)->nested.mtf_pending;
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	void *vapic = vmx->nested.virtual_apic_map.hva;
+	int max_irr, vppr;
+
+	if (nested_vmx_preemption_timer_pending(vcpu) ||
+	    vmx->nested.mtf_pending)
+		return true;
+
+	/*
+	 * Virtual Interrupt Delivery doesn't require manual injection.  Either
+	 * the interrupt is already in GUEST_RVI and will be recognized by CPU
+	 * at VM-Entry, or there is a KVM_REQ_EVENT pending and KVM will move
+	 * the interrupt from the PIR to RVI prior to entering the guest.
+	 */
+	if (for_injection)
+		return false;
+
+	if (!nested_cpu_has_vid(get_vmcs12(vcpu)) ||
+	    __vmx_interrupt_blocked(vcpu))
+		return false;
+
+	if (!vapic)
+		return false;
+
+	vppr = *((u32 *)(vapic + APIC_PROCPRI));
+
+	max_irr = vmx_get_rvi();
+	if ((max_irr & 0xf0) > (vppr & 0xf0))
+		return true;
+
+	if (vmx->nested.pi_pending && vmx->nested.pi_desc &&
+	    pi_test_on(vmx->nested.pi_desc)) {
+		max_irr = pi_find_highest_vector(vmx->nested.pi_desc);
+		if (max_irr > 0 && (max_irr & 0xf0) > (vppr & 0xf0))
+			return true;
+	}
+
+	return false;
 }
 
 /*
diff --git a/arch/x86/kvm/vmx/posted_intr.h b/arch/x86/kvm/vmx/posted_intr.h
index 26992076552e..88cea0dac720 100644
--- a/arch/x86/kvm/vmx/posted_intr.h
+++ b/arch/x86/kvm/vmx/posted_intr.h
@@ -2,6 +2,8 @@
 #ifndef __KVM_X86_VMX_POSTED_INTR_H
 #define __KVM_X86_VMX_POSTED_INTR_H
 
+#include <linux/find.h>
+
 #define POSTED_INTR_ON  0
 #define POSTED_INTR_SN  1
 
@@ -103,4 +105,12 @@ int vmx_pi_update_irte(struct kvm *kvm, unsigned int host_irq,
 		       uint32_t guest_irq, bool set);
 void vmx_pi_start_assignment(struct kvm *kvm);
 
+static inline int pi_find_highest_vector(struct pi_desc *pi_desc)
+{
+	int vec;
+
+	vec = find_last_bit((unsigned long *)pi_desc->pir, 256);
+	return vec < 256 ? vec : -1;
+}
+
 #endif /* __KVM_X86_VMX_POSTED_INTR_H */
diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S
index b4f8937226c2..ea7be3a74b6d 100644
--- a/arch/x86/kvm/vmx/vmenter.S
+++ b/arch/x86/kvm/vmx/vmenter.S
@@ -274,6 +274,7 @@ SYM_FUNC_END(__vmx_vcpu_run)
 
 .section .text, "ax"
 
+#ifndef CONFIG_CC_HAS_ASM_GOTO_OUTPUT
 /**
  * vmread_error_trampoline - Trampoline from inline asm to vmread_error()
  * @field:	VMCS field encoding that failed
@@ -322,6 +323,7 @@ SYM_FUNC_START(vmread_error_trampoline)
 
 	RET
 SYM_FUNC_END(vmread_error_trampoline)
+#endif
 
 SYM_FUNC_START(vmx_do_interrupt_nmi_irqoff)
 	/*
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index e5d162e97f50..2e6454e4cca4 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4063,26 +4063,6 @@ void pt_update_intercept_for_msr(struct kvm_vcpu *vcpu)
 	}
 }
 
-static bool vmx_guest_apic_has_interrupt(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	void *vapic_page;
-	u32 vppr;
-	int rvi;
-
-	if (WARN_ON_ONCE(!is_guest_mode(vcpu)) ||
-		!nested_cpu_has_vid(get_vmcs12(vcpu)) ||
-		WARN_ON_ONCE(!vmx->nested.virtual_apic_map.gfn))
-		return false;
-
-	rvi = vmx_get_rvi();
-
-	vapic_page = vmx->nested.virtual_apic_map.hva;
-	vppr = *((u32 *)(vapic_page + APIC_PROCPRI));
-
-	return ((rvi & 0xf0) > (vppr & 0xf0));
-}
-
 static void vmx_msr_filter_changed(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -8266,7 +8246,6 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = {
 	.check_apicv_inhibit_reasons = vmx_check_apicv_inhibit_reasons,
 	.hwapic_irr_update = vmx_hwapic_irr_update,
 	.hwapic_isr_update = vmx_hwapic_isr_update,
-	.guest_apic_has_interrupt = vmx_guest_apic_has_interrupt,
 	.sync_pir_to_irr = vmx_sync_pir_to_irr,
 	.deliver_interrupt = vmx_deliver_interrupt,
 	.dy_apicv_has_pending_interrupt = pi_has_pending_interrupt,
diff --git a/arch/x86/kvm/vmx/vmx_ops.h b/arch/x86/kvm/vmx/vmx_ops.h
index 5edab28dfb2e..d23705df6a52 100644
--- a/arch/x86/kvm/vmx/vmx_ops.h
+++ b/arch/x86/kvm/vmx/vmx_ops.h
@@ -11,14 +11,28 @@
 #include "../x86.h"
 
 void vmread_error(unsigned long field, bool fault);
-__attribute__((regparm(0))) void vmread_error_trampoline(unsigned long field,
-							 bool fault);
 void vmwrite_error(unsigned long field, unsigned long value);
 void vmclear_error(struct vmcs *vmcs, u64 phys_addr);
 void vmptrld_error(struct vmcs *vmcs, u64 phys_addr);
 void invvpid_error(unsigned long ext, u16 vpid, gva_t gva);
 void invept_error(unsigned long ext, u64 eptp, gpa_t gpa);
 
+#ifndef CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+/*
+ * The VMREAD error trampoline _always_ uses the stack to pass parameters, even
+ * for 64-bit targets.  Preserving all registers allows the VMREAD inline asm
+ * blob to avoid clobbering GPRs, which in turn allows the compiler to better
+ * optimize sequences of VMREADs.
+ *
+ * Declare the trampoline as an opaque label as it's not safe to call from C
+ * code; there is no way to tell the compiler to pass params on the stack for
+ * 64-bit targets.
+ *
+ * void vmread_error_trampoline(unsigned long field, bool fault);
+ */
+extern unsigned long vmread_error_trampoline;
+#endif
+
 static __always_inline void vmcs_check16(unsigned long field)
 {
 	BUILD_BUG_ON_MSG(__builtin_constant_p(field) && ((field) & 0x6001) == 0x2000,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 10ef8a4353b3..208a713d7ecd 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -13046,12 +13046,6 @@ void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
 	kvm_page_track_flush_slot(kvm, slot);
 }
 
-static inline bool kvm_guest_apic_has_interrupt(struct kvm_vcpu *vcpu)
-{
-	return (is_guest_mode(vcpu) &&
-		static_call(kvm_x86_guest_apic_has_interrupt)(vcpu));
-}
-
 static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu)
 {
 	if (!list_empty_careful(&vcpu->async_pf.done))
@@ -13077,9 +13071,7 @@ static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu)
 	     static_call(kvm_x86_smi_allowed)(vcpu, false)))
 		return true;
 
-	if (kvm_arch_interrupt_allowed(vcpu) &&
-	    (kvm_cpu_has_interrupt(vcpu) ||
-	    kvm_guest_apic_has_interrupt(vcpu)))
+	if (kvm_arch_interrupt_allowed(vcpu) && kvm_cpu_has_interrupt(vcpu))
 		return true;
 
 	if (kvm_hv_has_stimer_pending(vcpu))
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 84a4aa9312cf..74a27d0b58a1 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -546,7 +546,7 @@ static int agp_amd64_probe(struct pci_dev *pdev,
 	/* Fill in the mode register */
 	pci_read_config_dword(pdev, bridge->capndx+PCI_AGP_STATUS, &bridge->mode);
 
-	if (cache_nbs(pdev, cap_ptr) == -1) {
+	if (cache_nbs(pdev, cap_ptr) < 0) {
 		agp_put_bridge(bridge);
 		return -ENODEV;
 	}
diff --git a/drivers/crypto/qat/qat_common/adf_cfg_common.h b/drivers/crypto/qat/qat_common/adf_cfg_common.h
index 6e5de1dab97b..8d8d5d02755e 100644
--- a/drivers/crypto/qat/qat_common/adf_cfg_common.h
+++ b/drivers/crypto/qat/qat_common/adf_cfg_common.h
@@ -4,18 +4,11 @@
 #define ADF_CFG_COMMON_H_
 
 #include <linux/types.h>
-#include <linux/ioctl.h>
 
 #define ADF_CFG_MAX_STR_LEN 64
 #define ADF_CFG_MAX_KEY_LEN_IN_BYTES ADF_CFG_MAX_STR_LEN
 #define ADF_CFG_MAX_VAL_LEN_IN_BYTES ADF_CFG_MAX_STR_LEN
 #define ADF_CFG_MAX_SECTION_LEN_IN_BYTES ADF_CFG_MAX_STR_LEN
-#define ADF_CFG_BASE_DEC 10
-#define ADF_CFG_BASE_HEX 16
-#define ADF_CFG_ALL_DEVICES 0xFE
-#define ADF_CFG_NO_DEVICE 0xFF
-#define ADF_CFG_AFFINITY_WHATEVER 0xFF
-#define MAX_DEVICE_NAME_SIZE 32
 #define ADF_MAX_DEVICES (32 * 32)
 #define ADF_DEVS_ARRAY_SIZE BITS_TO_LONGS(ADF_MAX_DEVICES)
 
@@ -48,29 +41,4 @@ enum adf_device_type {
 	DEV_C3XXXVF,
 	DEV_4XXX,
 };
-
-struct adf_dev_status_info {
-	enum adf_device_type type;
-	__u32 accel_id;
-	__u32 instance_id;
-	__u8 num_ae;
-	__u8 num_accel;
-	__u8 num_logical_accel;
-	__u8 banks_per_accel;
-	__u8 state;
-	__u8 bus;
-	__u8 dev;
-	__u8 fun;
-	char name[MAX_DEVICE_NAME_SIZE];
-};
-
-#define ADF_CTL_IOC_MAGIC 'a'
-#define IOCTL_CONFIG_SYS_RESOURCE_PARAMETERS _IOW(ADF_CTL_IOC_MAGIC, 0, \
-		struct adf_user_cfg_ctl_data)
-#define IOCTL_STOP_ACCEL_DEV _IOW(ADF_CTL_IOC_MAGIC, 1, \
-		struct adf_user_cfg_ctl_data)
-#define IOCTL_START_ACCEL_DEV _IOW(ADF_CTL_IOC_MAGIC, 2, \
-		struct adf_user_cfg_ctl_data)
-#define IOCTL_STATUS_ACCEL_DEV _IOW(ADF_CTL_IOC_MAGIC, 3, __u32)
-#define IOCTL_GET_NUM_DEVICES _IOW(ADF_CTL_IOC_MAGIC, 4, __s32)
 #endif
diff --git a/drivers/crypto/qat/qat_common/adf_cfg_user.h b/drivers/crypto/qat/qat_common/adf_cfg_user.h
deleted file mode 100644
index 421f4fb8b4dd..000000000000
--- a/drivers/crypto/qat/qat_common/adf_cfg_user.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) */
-/* Copyright(c) 2014 - 2020 Intel Corporation */
-#ifndef ADF_CFG_USER_H_
-#define ADF_CFG_USER_H_
-
-#include "adf_cfg_common.h"
-#include "adf_cfg_strings.h"
-
-struct adf_user_cfg_key_val {
-	char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES];
-	char val[ADF_CFG_MAX_VAL_LEN_IN_BYTES];
-	union {
-		struct adf_user_cfg_key_val *next;
-		__u64 padding3;
-	};
-	enum adf_cfg_val_type type;
-} __packed;
-
-struct adf_user_cfg_section {
-	char name[ADF_CFG_MAX_SECTION_LEN_IN_BYTES];
-	union {
-		struct adf_user_cfg_key_val *params;
-		__u64 padding1;
-	};
-	union {
-		struct adf_user_cfg_section *next;
-		__u64 padding3;
-	};
-} __packed;
-
-struct adf_user_cfg_ctl_data {
-	union {
-		struct adf_user_cfg_section *config_section;
-		__u64 padding;
-	};
-	__u8 device_id;
-} __packed;
-#endif
diff --git a/drivers/crypto/qat/qat_common/adf_common_drv.h b/drivers/crypto/qat/qat_common/adf_common_drv.h
index 86aebe07db44..0db01a6086e3 100644
--- a/drivers/crypto/qat/qat_common/adf_common_drv.h
+++ b/drivers/crypto/qat/qat_common/adf_common_drv.h
@@ -75,11 +75,8 @@ int adf_devmgr_add_dev(struct adf_accel_dev *accel_dev,
 void adf_devmgr_rm_dev(struct adf_accel_dev *accel_dev,
 		       struct adf_accel_dev *pf);
 struct list_head *adf_devmgr_get_head(void);
-struct adf_accel_dev *adf_devmgr_get_dev_by_id(u32 id);
 struct adf_accel_dev *adf_devmgr_get_first(void);
 struct adf_accel_dev *adf_devmgr_pci_to_accel_dev(struct pci_dev *pci_dev);
-int adf_devmgr_verify_id(u32 id);
-void adf_devmgr_get_num_dev(u32 *num);
 int adf_devmgr_in_reset(struct adf_accel_dev *accel_dev);
 int adf_dev_started(struct adf_accel_dev *accel_dev);
 int adf_dev_restarting_notify(struct adf_accel_dev *accel_dev);
diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
index 82b69e1f725b..5b62d304c64f 100644
--- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
+++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
@@ -1,428 +1,14 @@
 // SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
 /* Copyright(c) 2014 - 2020 Intel Corporation */
+
+#include <crypto/algapi.h>
+#include <linux/errno.h>
 #include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/bitops.h>
-#include <linux/pci.h>
-#include <linux/cdev.h>
-#include <linux/uaccess.h>
-#include <linux/crypto.h>
 
-#include "adf_accel_devices.h"
 #include "adf_common_drv.h"
-#include "adf_cfg.h"
-#include "adf_cfg_common.h"
-#include "adf_cfg_user.h"
-
-#define ADF_CFG_MAX_SECTION 512
-#define ADF_CFG_MAX_KEY_VAL 256
-
-#define DEVICE_NAME "qat_adf_ctl"
-
-static DEFINE_MUTEX(adf_ctl_lock);
-static long adf_ctl_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
-
-static const struct file_operations adf_ctl_ops = {
-	.owner = THIS_MODULE,
-	.unlocked_ioctl = adf_ctl_ioctl,
-	.compat_ioctl = compat_ptr_ioctl,
-};
-
-struct adf_ctl_drv_info {
-	unsigned int major;
-	struct cdev drv_cdev;
-	struct class *drv_class;
-};
-
-static struct adf_ctl_drv_info adf_ctl_drv;
-
-static void adf_chr_drv_destroy(void)
-{
-	device_destroy(adf_ctl_drv.drv_class, MKDEV(adf_ctl_drv.major, 0));
-	cdev_del(&adf_ctl_drv.drv_cdev);
-	class_destroy(adf_ctl_drv.drv_class);
-	unregister_chrdev_region(MKDEV(adf_ctl_drv.major, 0), 1);
-}
-
-static int adf_chr_drv_create(void)
-{
-	dev_t dev_id;
-	struct device *drv_device;
-
-	if (alloc_chrdev_region(&dev_id, 0, 1, DEVICE_NAME)) {
-		pr_err("QAT: unable to allocate chrdev region\n");
-		return -EFAULT;
-	}
-
-	adf_ctl_drv.drv_class = class_create(THIS_MODULE, DEVICE_NAME);
-	if (IS_ERR(adf_ctl_drv.drv_class)) {
-		pr_err("QAT: class_create failed for adf_ctl\n");
-		goto err_chrdev_unreg;
-	}
-	adf_ctl_drv.major = MAJOR(dev_id);
-	cdev_init(&adf_ctl_drv.drv_cdev, &adf_ctl_ops);
-	if (cdev_add(&adf_ctl_drv.drv_cdev, dev_id, 1)) {
-		pr_err("QAT: cdev add failed\n");
-		goto err_class_destr;
-	}
-
-	drv_device = device_create(adf_ctl_drv.drv_class, NULL,
-				   MKDEV(adf_ctl_drv.major, 0),
-				   NULL, DEVICE_NAME);
-	if (IS_ERR(drv_device)) {
-		pr_err("QAT: failed to create device\n");
-		goto err_cdev_del;
-	}
-	return 0;
-err_cdev_del:
-	cdev_del(&adf_ctl_drv.drv_cdev);
-err_class_destr:
-	class_destroy(adf_ctl_drv.drv_class);
-err_chrdev_unreg:
-	unregister_chrdev_region(dev_id, 1);
-	return -EFAULT;
-}
-
-static int adf_ctl_alloc_resources(struct adf_user_cfg_ctl_data **ctl_data,
-				   unsigned long arg)
-{
-	struct adf_user_cfg_ctl_data *cfg_data;
-
-	cfg_data = kzalloc(sizeof(*cfg_data), GFP_KERNEL);
-	if (!cfg_data)
-		return -ENOMEM;
-
-	/* Initialize device id to NO DEVICE as 0 is a valid device id */
-	cfg_data->device_id = ADF_CFG_NO_DEVICE;
-
-	if (copy_from_user(cfg_data, (void __user *)arg, sizeof(*cfg_data))) {
-		pr_err("QAT: failed to copy from user cfg_data.\n");
-		kfree(cfg_data);
-		return -EIO;
-	}
-
-	*ctl_data = cfg_data;
-	return 0;
-}
-
-static int adf_add_key_value_data(struct adf_accel_dev *accel_dev,
-				  const char *section,
-				  const struct adf_user_cfg_key_val *key_val)
-{
-	if (key_val->type == ADF_HEX) {
-		long *ptr = (long *)key_val->val;
-		long val = *ptr;
-
-		if (adf_cfg_add_key_value_param(accel_dev, section,
-						key_val->key, (void *)val,
-						key_val->type)) {
-			dev_err(&GET_DEV(accel_dev),
-				"failed to add hex keyvalue.\n");
-			return -EFAULT;
-		}
-	} else {
-		if (adf_cfg_add_key_value_param(accel_dev, section,
-						key_val->key, key_val->val,
-						key_val->type)) {
-			dev_err(&GET_DEV(accel_dev),
-				"failed to add keyvalue.\n");
-			return -EFAULT;
-		}
-	}
-	return 0;
-}
-
-static int adf_copy_key_value_data(struct adf_accel_dev *accel_dev,
-				   struct adf_user_cfg_ctl_data *ctl_data)
-{
-	struct adf_user_cfg_key_val key_val;
-	struct adf_user_cfg_key_val *params_head;
-	struct adf_user_cfg_section section, *section_head;
-	int i, j;
-
-	section_head = ctl_data->config_section;
-
-	for (i = 0; section_head && i < ADF_CFG_MAX_SECTION; i++) {
-		if (copy_from_user(&section, (void __user *)section_head,
-				   sizeof(*section_head))) {
-			dev_err(&GET_DEV(accel_dev),
-				"failed to copy section info\n");
-			goto out_err;
-		}
-
-		if (adf_cfg_section_add(accel_dev, section.name)) {
-			dev_err(&GET_DEV(accel_dev),
-				"failed to add section.\n");
-			goto out_err;
-		}
-
-		params_head = section.params;
-
-		for (j = 0; params_head && j < ADF_CFG_MAX_KEY_VAL; j++) {
-			if (copy_from_user(&key_val, (void __user *)params_head,
-					   sizeof(key_val))) {
-				dev_err(&GET_DEV(accel_dev),
-					"Failed to copy keyvalue.\n");
-				goto out_err;
-			}
-			if (adf_add_key_value_data(accel_dev, section.name,
-						   &key_val)) {
-				goto out_err;
-			}
-			params_head = key_val.next;
-		}
-		section_head = section.next;
-	}
-	return 0;
-out_err:
-	adf_cfg_del_all(accel_dev);
-	return -EFAULT;
-}
-
-static int adf_ctl_ioctl_dev_config(struct file *fp, unsigned int cmd,
-				    unsigned long arg)
-{
-	int ret;
-	struct adf_user_cfg_ctl_data *ctl_data;
-	struct adf_accel_dev *accel_dev;
-
-	ret = adf_ctl_alloc_resources(&ctl_data, arg);
-	if (ret)
-		return ret;
-
-	accel_dev = adf_devmgr_get_dev_by_id(ctl_data->device_id);
-	if (!accel_dev) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	if (adf_dev_started(accel_dev)) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	if (adf_copy_key_value_data(accel_dev, ctl_data)) {
-		ret = -EFAULT;
-		goto out;
-	}
-	set_bit(ADF_STATUS_CONFIGURED, &accel_dev->status);
-out:
-	kfree(ctl_data);
-	return ret;
-}
-
-static int adf_ctl_is_device_in_use(int id)
-{
-	struct adf_accel_dev *dev;
-
-	list_for_each_entry(dev, adf_devmgr_get_head(), list) {
-		if (id == dev->accel_id || id == ADF_CFG_ALL_DEVICES) {
-			if (adf_devmgr_in_reset(dev) || adf_dev_in_use(dev)) {
-				dev_info(&GET_DEV(dev),
-					 "device qat_dev%d is busy\n",
-					 dev->accel_id);
-				return -EBUSY;
-			}
-		}
-	}
-	return 0;
-}
-
-static void adf_ctl_stop_devices(u32 id)
-{
-	struct adf_accel_dev *accel_dev;
-
-	list_for_each_entry(accel_dev, adf_devmgr_get_head(), list) {
-		if (id == accel_dev->accel_id || id == ADF_CFG_ALL_DEVICES) {
-			if (!adf_dev_started(accel_dev))
-				continue;
-
-			/* First stop all VFs */
-			if (!accel_dev->is_vf)
-				continue;
-
-			adf_dev_stop(accel_dev);
-			adf_dev_shutdown(accel_dev);
-		}
-	}
-
-	list_for_each_entry(accel_dev, adf_devmgr_get_head(), list) {
-		if (id == accel_dev->accel_id || id == ADF_CFG_ALL_DEVICES) {
-			if (!adf_dev_started(accel_dev))
-				continue;
-
-			adf_dev_stop(accel_dev);
-			adf_dev_shutdown(accel_dev);
-		}
-	}
-}
-
-static int adf_ctl_ioctl_dev_stop(struct file *fp, unsigned int cmd,
-				  unsigned long arg)
-{
-	int ret;
-	struct adf_user_cfg_ctl_data *ctl_data;
-
-	ret = adf_ctl_alloc_resources(&ctl_data, arg);
-	if (ret)
-		return ret;
-
-	if (adf_devmgr_verify_id(ctl_data->device_id)) {
-		pr_err("QAT: Device %d not found\n", ctl_data->device_id);
-		ret = -ENODEV;
-		goto out;
-	}
-
-	ret = adf_ctl_is_device_in_use(ctl_data->device_id);
-	if (ret)
-		goto out;
-
-	if (ctl_data->device_id == ADF_CFG_ALL_DEVICES)
-		pr_info("QAT: Stopping all acceleration devices.\n");
-	else
-		pr_info("QAT: Stopping acceleration device qat_dev%d.\n",
-			ctl_data->device_id);
-
-	adf_ctl_stop_devices(ctl_data->device_id);
-
-out:
-	kfree(ctl_data);
-	return ret;
-}
-
-static int adf_ctl_ioctl_dev_start(struct file *fp, unsigned int cmd,
-				   unsigned long arg)
-{
-	int ret;
-	struct adf_user_cfg_ctl_data *ctl_data;
-	struct adf_accel_dev *accel_dev;
-
-	ret = adf_ctl_alloc_resources(&ctl_data, arg);
-	if (ret)
-		return ret;
-
-	ret = -ENODEV;
-	accel_dev = adf_devmgr_get_dev_by_id(ctl_data->device_id);
-	if (!accel_dev)
-		goto out;
-
-	if (!adf_dev_started(accel_dev)) {
-		dev_info(&GET_DEV(accel_dev),
-			 "Starting acceleration device qat_dev%d.\n",
-			 ctl_data->device_id);
-		ret = adf_dev_init(accel_dev);
-		if (!ret)
-			ret = adf_dev_start(accel_dev);
-	} else {
-		dev_info(&GET_DEV(accel_dev),
-			 "Acceleration device qat_dev%d already started.\n",
-			 ctl_data->device_id);
-	}
-	if (ret) {
-		dev_err(&GET_DEV(accel_dev), "Failed to start qat_dev%d\n",
-			ctl_data->device_id);
-		adf_dev_stop(accel_dev);
-		adf_dev_shutdown(accel_dev);
-	}
-out:
-	kfree(ctl_data);
-	return ret;
-}
-
-static int adf_ctl_ioctl_get_num_devices(struct file *fp, unsigned int cmd,
-					 unsigned long arg)
-{
-	u32 num_devices = 0;
-
-	adf_devmgr_get_num_dev(&num_devices);
-	if (copy_to_user((void __user *)arg, &num_devices, sizeof(num_devices)))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int adf_ctl_ioctl_get_status(struct file *fp, unsigned int cmd,
-				    unsigned long arg)
-{
-	struct adf_hw_device_data *hw_data;
-	struct adf_dev_status_info dev_info;
-	struct adf_accel_dev *accel_dev;
-
-	if (copy_from_user(&dev_info, (void __user *)arg,
-			   sizeof(struct adf_dev_status_info))) {
-		pr_err("QAT: failed to copy from user.\n");
-		return -EFAULT;
-	}
-
-	accel_dev = adf_devmgr_get_dev_by_id(dev_info.accel_id);
-	if (!accel_dev)
-		return -ENODEV;
-
-	hw_data = accel_dev->hw_device;
-	dev_info.state = adf_dev_started(accel_dev) ? DEV_UP : DEV_DOWN;
-	dev_info.num_ae = hw_data->get_num_aes(hw_data);
-	dev_info.num_accel = hw_data->get_num_accels(hw_data);
-	dev_info.num_logical_accel = hw_data->num_logical_accel;
-	dev_info.banks_per_accel = hw_data->num_banks
-					/ hw_data->num_logical_accel;
-	strscpy(dev_info.name, hw_data->dev_class->name, sizeof(dev_info.name));
-	dev_info.instance_id = hw_data->instance_id;
-	dev_info.type = hw_data->dev_class->type;
-	dev_info.bus = accel_to_pci_dev(accel_dev)->bus->number;
-	dev_info.dev = PCI_SLOT(accel_to_pci_dev(accel_dev)->devfn);
-	dev_info.fun = PCI_FUNC(accel_to_pci_dev(accel_dev)->devfn);
-
-	if (copy_to_user((void __user *)arg, &dev_info,
-			 sizeof(struct adf_dev_status_info))) {
-		dev_err(&GET_DEV(accel_dev), "failed to copy status.\n");
-		return -EFAULT;
-	}
-	return 0;
-}
-
-static long adf_ctl_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
-{
-	int ret;
-
-	if (mutex_lock_interruptible(&adf_ctl_lock))
-		return -EFAULT;
-
-	switch (cmd) {
-	case IOCTL_CONFIG_SYS_RESOURCE_PARAMETERS:
-		ret = adf_ctl_ioctl_dev_config(fp, cmd, arg);
-		break;
-
-	case IOCTL_STOP_ACCEL_DEV:
-		ret = adf_ctl_ioctl_dev_stop(fp, cmd, arg);
-		break;
-
-	case IOCTL_START_ACCEL_DEV:
-		ret = adf_ctl_ioctl_dev_start(fp, cmd, arg);
-		break;
-
-	case IOCTL_GET_NUM_DEVICES:
-		ret = adf_ctl_ioctl_get_num_devices(fp, cmd, arg);
-		break;
-
-	case IOCTL_STATUS_ACCEL_DEV:
-		ret = adf_ctl_ioctl_get_status(fp, cmd, arg);
-		break;
-	default:
-		pr_err_ratelimited("QAT: Invalid ioctl %d\n", cmd);
-		ret = -EFAULT;
-		break;
-	}
-	mutex_unlock(&adf_ctl_lock);
-	return ret;
-}
 
 static int __init adf_register_ctl_device_driver(void)
 {
-	if (adf_chr_drv_create())
-		goto err_chr_dev;
-
 	if (adf_init_misc_wq())
 		goto err_misc_wq;
 
@@ -449,22 +35,17 @@ static int __init adf_register_ctl_device_driver(void)
 err_aer:
 	adf_exit_misc_wq();
 err_misc_wq:
-	adf_chr_drv_destroy();
-err_chr_dev:
-	mutex_destroy(&adf_ctl_lock);
 	return -EFAULT;
 }
 
 static void __exit adf_unregister_ctl_device_driver(void)
 {
-	adf_chr_drv_destroy();
 	adf_exit_misc_wq();
 	adf_exit_aer();
 	adf_exit_vf_wq();
 	adf_exit_pf_wq();
 	qat_crypto_unregister();
 	adf_clean_vf_map(false);
-	mutex_destroy(&adf_ctl_lock);
 }
 
 module_init(adf_register_ctl_device_driver);
diff --git a/drivers/crypto/qat/qat_common/adf_dev_mgr.c b/drivers/crypto/qat/qat_common/adf_dev_mgr.c
index 86ee36feefad..9bdfa5b1614f 100644
--- a/drivers/crypto/qat/qat_common/adf_dev_mgr.c
+++ b/drivers/crypto/qat/qat_common/adf_dev_mgr.c
@@ -45,19 +45,6 @@ static struct vf_id_map *adf_find_vf(u32 bdf)
 	return NULL;
 }
 
-static int adf_get_vf_real_id(u32 fake)
-{
-	struct list_head *itr;
-
-	list_for_each(itr, &vfs_table) {
-		struct vf_id_map *ptr =
-			list_entry(itr, struct vf_id_map, list);
-		if (ptr->fake_id == fake)
-			return ptr->id;
-	}
-	return -1;
-}
-
 /**
  * adf_clean_vf_map() - Cleans VF id mapings
  *
@@ -314,63 +301,6 @@ struct adf_accel_dev *adf_devmgr_pci_to_accel_dev(struct pci_dev *pci_dev)
 }
 EXPORT_SYMBOL_GPL(adf_devmgr_pci_to_accel_dev);
 
-struct adf_accel_dev *adf_devmgr_get_dev_by_id(u32 id)
-{
-	struct list_head *itr;
-	int real_id;
-
-	mutex_lock(&table_lock);
-	real_id = adf_get_vf_real_id(id);
-	if (real_id < 0)
-		goto unlock;
-
-	id = real_id;
-
-	list_for_each(itr, &accel_table) {
-		struct adf_accel_dev *ptr =
-				list_entry(itr, struct adf_accel_dev, list);
-		if (ptr->accel_id == id) {
-			mutex_unlock(&table_lock);
-			return ptr;
-		}
-	}
-unlock:
-	mutex_unlock(&table_lock);
-	return NULL;
-}
-
-int adf_devmgr_verify_id(u32 id)
-{
-	if (id == ADF_CFG_ALL_DEVICES)
-		return 0;
-
-	if (adf_devmgr_get_dev_by_id(id))
-		return 0;
-
-	return -ENODEV;
-}
-
-static int adf_get_num_dettached_vfs(void)
-{
-	struct list_head *itr;
-	int vfs = 0;
-
-	mutex_lock(&table_lock);
-	list_for_each(itr, &vfs_table) {
-		struct vf_id_map *ptr =
-			list_entry(itr, struct vf_id_map, list);
-		if (ptr->bdf != ~0 && !ptr->attached)
-			vfs++;
-	}
-	mutex_unlock(&table_lock);
-	return vfs;
-}
-
-void adf_devmgr_get_num_dev(u32 *num)
-{
-	*num = num_devices - adf_get_num_dettached_vfs();
-}
-
 /**
  * adf_dev_in_use() - Check whether accel_dev is currently in use
  * @accel_dev: Pointer to acceleration device.
diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c
index 4a7b3f0059c3..6feacb1b796c 100644
--- a/drivers/fpga/of-fpga-region.c
+++ b/drivers/fpga/of-fpga-region.c
@@ -166,11 +166,10 @@ static int child_regions_with_firmware(struct device_node *overlay)
 						     fpga_region_of_match);
 	}
 
-	of_node_put(child_region);
-
 	if (ret)
 		pr_err("firmware-name not allowed in child FPGA region: %pOF",
 		       child_region);
+	of_node_put(child_region);
 
 	return ret;
 }
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
index d8982aca8ef6..d2730af8e803 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
@@ -223,6 +223,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
 	ATOM_COMMON_RECORD_HEADER *header;
 	ATOM_I2C_RECORD *record;
 	struct bios_parser *bp = BP_FROM_DCB(dcb);
+	int i;
 
 	if (!info)
 		return BP_RESULT_BADINPUT;
@@ -235,7 +236,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
 	offset = le16_to_cpu(object->usRecordOffset)
 			+ bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(ATOM_COMMON_RECORD_HEADER, offset);
 
 		if (!header)
@@ -294,11 +295,12 @@ static enum bp_result bios_parser_get_device_tag_record(
 {
 	ATOM_COMMON_RECORD_HEADER *header;
 	uint32_t offset;
+	int i;
 
 	offset = le16_to_cpu(object->usRecordOffset)
 			+ bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(ATOM_COMMON_RECORD_HEADER, offset);
 
 		if (!header)
@@ -870,6 +872,7 @@ static ATOM_HPD_INT_RECORD *get_hpd_record(struct bios_parser *bp,
 {
 	ATOM_COMMON_RECORD_HEADER *header;
 	uint32_t offset;
+	int i;
 
 	if (!object) {
 		BREAK_TO_DEBUGGER(); /* Invalid object */
@@ -879,7 +882,7 @@ static ATOM_HPD_INT_RECORD *get_hpd_record(struct bios_parser *bp,
 	offset = le16_to_cpu(object->usRecordOffset)
 			+ bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(ATOM_COMMON_RECORD_HEADER, offset);
 
 		if (!header)
@@ -1572,6 +1575,7 @@ static ATOM_ENCODER_CAP_RECORD_V2 *get_encoder_cap_record(
 {
 	ATOM_COMMON_RECORD_HEADER *header;
 	uint32_t offset;
+	int i;
 
 	if (!object) {
 		BREAK_TO_DEBUGGER(); /* Invalid object */
@@ -1581,7 +1585,7 @@ static ATOM_ENCODER_CAP_RECORD_V2 *get_encoder_cap_record(
 	offset = le16_to_cpu(object->usRecordOffset)
 					+ bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(ATOM_COMMON_RECORD_HEADER, offset);
 
 		if (!header)
@@ -2665,6 +2669,7 @@ static enum bp_result update_slot_layout_info(
 	unsigned int record_offset)
 {
 	unsigned int j;
+	unsigned int n;
 	struct bios_parser *bp;
 	ATOM_BRACKET_LAYOUT_RECORD *record;
 	ATOM_COMMON_RECORD_HEADER *record_header;
@@ -2674,7 +2679,7 @@ static enum bp_result update_slot_layout_info(
 	record = NULL;
 	record_header = NULL;
 
-	for (;;) {
+	for (n = 0; n < BIOS_MAX_NUM_RECORD; n++) {
 
 		record_header = (ATOM_COMMON_RECORD_HEADER *)
 			GET_IMAGE(ATOM_COMMON_RECORD_HEADER, record_offset);
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index af8c6682e6be..5d6428b2e4f5 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -393,6 +393,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
 	struct atom_i2c_record *record;
 	struct atom_i2c_record dummy_record = {0};
 	struct bios_parser *bp = BP_FROM_DCB(dcb);
+	int i;
 
 	if (!info)
 		return BP_RESULT_BADINPUT;
@@ -426,7 +427,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
 		break;
 	}
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(struct atom_common_record_header, offset);
 
 		if (!header)
@@ -532,6 +533,7 @@ static struct atom_hpd_int_record *get_hpd_record_for_path_v3(
 {
 	struct atom_common_record_header *header;
 	uint32_t offset;
+	int i;
 
 	if (!object) {
 		BREAK_TO_DEBUGGER(); /* Invalid object */
@@ -540,7 +542,7 @@ static struct atom_hpd_int_record *get_hpd_record_for_path_v3(
 
 	offset = object->disp_recordoffset + bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(struct atom_common_record_header, offset);
 
 		if (!header)
@@ -610,6 +612,7 @@ static struct atom_hpd_int_record *get_hpd_record(
 {
 	struct atom_common_record_header *header;
 	uint32_t offset;
+	int i;
 
 	if (!object) {
 		BREAK_TO_DEBUGGER(); /* Invalid object */
@@ -619,7 +622,7 @@ static struct atom_hpd_int_record *get_hpd_record(
 	offset = le16_to_cpu(object->disp_recordoffset)
 			+ bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(struct atom_common_record_header, offset);
 
 		if (!header)
@@ -2127,6 +2130,7 @@ static struct atom_encoder_caps_record *get_encoder_cap_record(
 {
 	struct atom_common_record_header *header;
 	uint32_t offset;
+	int i;
 
 	if (!object) {
 		BREAK_TO_DEBUGGER(); /* Invalid object */
@@ -2135,7 +2139,7 @@ static struct atom_encoder_caps_record *get_encoder_cap_record(
 
 	offset = object->encoder_recordoffset + bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(struct atom_common_record_header, offset);
 
 		if (!header)
@@ -2164,6 +2168,7 @@ static struct atom_disp_connector_caps_record *get_disp_connector_caps_record(
 {
 	struct atom_common_record_header *header;
 	uint32_t offset;
+	int i;
 
 	if (!object) {
 		BREAK_TO_DEBUGGER(); /* Invalid object */
@@ -2172,7 +2177,7 @@ static struct atom_disp_connector_caps_record *get_disp_connector_caps_record(
 
 	offset = object->disp_recordoffset + bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(struct atom_common_record_header, offset);
 
 		if (!header)
@@ -2201,6 +2206,7 @@ static struct atom_connector_caps_record *get_connector_caps_record(
 {
 	struct atom_common_record_header *header;
 	uint32_t offset;
+	int i;
 
 	if (!object) {
 		BREAK_TO_DEBUGGER(); /* Invalid object */
@@ -2209,7 +2215,7 @@ static struct atom_connector_caps_record *get_connector_caps_record(
 
 	offset = object->disp_recordoffset + bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(struct atom_common_record_header, offset);
 
 		if (!header)
@@ -2290,6 +2296,7 @@ static struct atom_connector_speed_record *get_connector_speed_cap_record(
 {
 	struct atom_common_record_header *header;
 	uint32_t offset;
+	int i;
 
 	if (!object) {
 		BREAK_TO_DEBUGGER(); /* Invalid object */
@@ -2298,7 +2305,7 @@ static struct atom_connector_speed_record *get_connector_speed_cap_record(
 
 	offset = object->disp_recordoffset + bp->object_info_tbl_offset;
 
-	for (;;) {
+	for (i = 0; i < BIOS_MAX_NUM_RECORD; i++) {
 		header = GET_IMAGE(struct atom_common_record_header, offset);
 
 		if (!header)
@@ -3162,6 +3169,7 @@ static enum bp_result update_slot_layout_info(
 {
 	unsigned int record_offset;
 	unsigned int j;
+	unsigned int n;
 	struct atom_display_object_path_v2 *object;
 	struct atom_bracket_layout_record *record;
 	struct atom_common_record_header *record_header;
@@ -3183,7 +3191,7 @@ static enum bp_result update_slot_layout_info(
 		(object->disp_recordoffset) +
 		(unsigned int)(bp->object_info_tbl_offset);
 
-	for (;;) {
+	for (n = 0; n < BIOS_MAX_NUM_RECORD; n++) {
 
 		record_header = (struct atom_common_record_header *)
 			GET_IMAGE(struct atom_common_record_header,
@@ -3277,6 +3285,7 @@ static enum bp_result update_slot_layout_info_v2(
 	struct slot_layout_info *slot_layout_info)
 {
 	unsigned int record_offset;
+	unsigned int n;
 	struct atom_display_object_path_v3 *object;
 	struct atom_bracket_layout_record_v2 *record;
 	struct atom_common_record_header *record_header;
@@ -3299,7 +3308,7 @@ static enum bp_result update_slot_layout_info_v2(
 		(object->disp_recordoffset) +
 		(unsigned int)(bp->object_info_tbl_offset);
 
-	for (;;) {
+	for (n = 0; n < BIOS_MAX_NUM_RECORD; n++) {
 
 		record_header = (struct atom_common_record_header *)
 			GET_IMAGE(struct atom_common_record_header,
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.h b/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.h
index e1b4a40a353d..da1e30de3c59 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.h
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.h
@@ -38,4 +38,9 @@ uint32_t bios_get_vga_enabled_displays(struct dc_bios *bios);
 
 #define GET_IMAGE(type, offset) ((type *) bios_get_image(&bp->base, offset, sizeof(type)))
 
+/* Upper bound on the number of records in a VBIOS record chain. Prevents
+ * unbounded looping if the VBIOS image is malformed and lacks a terminator.
+ */
+#define BIOS_MAX_NUM_RECORD 256
+
 #endif
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index a366ea208787..c1e389635de8 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -26,6 +26,9 @@ struct v3d_queue_state {
 
 	u64 fence_context;
 	u64 emit_seqno;
+
+	/* Currently active job for this queue */
+	struct v3d_job *active_job;
 };
 
 /* Performance monitor object. The perform lifetime is controlled by userspace
@@ -110,11 +113,6 @@ struct v3d_dev {
 
 	struct work_struct overflow_mem_work;
 
-	struct v3d_bin_job *bin_job;
-	struct v3d_render_job *render_job;
-	struct v3d_tfu_job *tfu_job;
-	struct v3d_csd_job *csd_job;
-
 	struct v3d_queue_state queue[V3D_MAX_QUEUES];
 
 	/* Spinlock used to synchronize the overflow memory
diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index 97755a6b5563..71019a57958b 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -1120,14 +1120,15 @@ void
 v3d_gem_destroy(struct drm_device *dev)
 {
 	struct v3d_dev *v3d = to_v3d_dev(dev);
+	enum v3d_queue q;
 
 	v3d_sched_fini(v3d);
 
 	/* Waiting for jobs to finish would need to be done before
 	 * unregistering V3D.
 	 */
-	WARN_ON(v3d->bin_job);
-	WARN_ON(v3d->render_job);
+	for (q = 0; q < V3D_MAX_QUEUES; q++)
+		WARN_ON(v3d->queue[q].active_job);
 
 	drm_mm_takedown(&v3d->mm);
 
diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
index 641315dbee8b..1717504742a6 100644
--- a/drivers/gpu/drm/v3d/v3d_irq.c
+++ b/drivers/gpu/drm/v3d/v3d_irq.c
@@ -40,6 +40,8 @@ v3d_overflow_mem_work(struct work_struct *work)
 		container_of(work, struct v3d_dev, overflow_mem_work);
 	struct drm_device *dev = &v3d->drm;
 	struct v3d_bo *bo = v3d_bo_create(dev, NULL /* XXX: GMP */, 256 * 1024);
+	struct v3d_queue_state *queue = &v3d->queue[V3D_BIN];
+	struct v3d_bin_job *bin_job;
 	struct drm_gem_object *obj;
 	unsigned long irqflags;
 
@@ -59,13 +61,15 @@ v3d_overflow_mem_work(struct work_struct *work)
 	 * some binner pool anyway.
 	 */
 	spin_lock_irqsave(&v3d->job_lock, irqflags);
-	if (!v3d->bin_job) {
+	bin_job = (struct v3d_bin_job *)queue->active_job;
+
+	if (!bin_job) {
 		spin_unlock_irqrestore(&v3d->job_lock, irqflags);
 		goto out;
 	}
 
 	drm_gem_object_get(obj);
-	list_add_tail(&bo->unref_head, &v3d->bin_job->render->unref_list);
+	list_add_tail(&bo->unref_head, &bin_job->render->unref_list);
 	spin_unlock_irqrestore(&v3d->job_lock, irqflags);
 
 	V3D_CORE_WRITE(0, V3D_PTB_BPOA, bo->node.start << PAGE_SHIFT);
@@ -99,11 +103,11 @@ v3d_irq(int irq, void *arg)
 
 	if (intsts & V3D_INT_FLDONE) {
 		struct v3d_fence *fence =
-			to_v3d_fence(v3d->bin_job->base.irq_fence);
+			to_v3d_fence(v3d->queue[V3D_BIN].active_job->irq_fence);
 
 		trace_v3d_bcl_irq(&v3d->drm, fence->seqno);
 
-		v3d->bin_job = NULL;
+		v3d->queue[V3D_BIN].active_job = NULL;
 		dma_fence_signal(&fence->base);
 
 		status = IRQ_HANDLED;
@@ -111,11 +115,11 @@ v3d_irq(int irq, void *arg)
 
 	if (intsts & V3D_INT_FRDONE) {
 		struct v3d_fence *fence =
-			to_v3d_fence(v3d->render_job->base.irq_fence);
+			to_v3d_fence(v3d->queue[V3D_RENDER].active_job->irq_fence);
 
 		trace_v3d_rcl_irq(&v3d->drm, fence->seqno);
 
-		v3d->render_job = NULL;
+		v3d->queue[V3D_RENDER].active_job = NULL;
 		dma_fence_signal(&fence->base);
 
 		status = IRQ_HANDLED;
@@ -123,11 +127,11 @@ v3d_irq(int irq, void *arg)
 
 	if (intsts & V3D_INT_CSDDONE) {
 		struct v3d_fence *fence =
-			to_v3d_fence(v3d->csd_job->base.irq_fence);
+			to_v3d_fence(v3d->queue[V3D_CSD].active_job->irq_fence);
 
 		trace_v3d_csd_irq(&v3d->drm, fence->seqno);
 
-		v3d->csd_job = NULL;
+		v3d->queue[V3D_CSD].active_job = NULL;
 		dma_fence_signal(&fence->base);
 
 		status = IRQ_HANDLED;
@@ -162,11 +166,11 @@ v3d_hub_irq(int irq, void *arg)
 
 	if (intsts & V3D_HUB_INT_TFUC) {
 		struct v3d_fence *fence =
-			to_v3d_fence(v3d->tfu_job->base.irq_fence);
+			to_v3d_fence(v3d->queue[V3D_TFU].active_job->irq_fence);
 
 		trace_v3d_tfu_irq(&v3d->drm, fence->seqno);
 
-		v3d->tfu_job = NULL;
+		v3d->queue[V3D_TFU].active_job = NULL;
 		dma_fence_signal(&fence->base);
 
 		status = IRQ_HANDLED;
diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c
index 41493cf3d03b..ab872bc81800 100644
--- a/drivers/gpu/drm/v3d/v3d_sched.c
+++ b/drivers/gpu/drm/v3d/v3d_sched.c
@@ -80,14 +80,18 @@ static struct dma_fence *v3d_bin_job_run(struct drm_sched_job *sched_job)
 	struct dma_fence *fence;
 	unsigned long irqflags;
 
-	if (unlikely(job->base.base.s_fence->finished.error))
+	if (unlikely(job->base.base.s_fence->finished.error)) {
+		spin_lock_irqsave(&v3d->job_lock, irqflags);
+		v3d->queue[V3D_BIN].active_job = NULL;
+		spin_unlock_irqrestore(&v3d->job_lock, irqflags);
 		return NULL;
+	}
 
 	/* Lock required around bin_job update vs
 	 * v3d_overflow_mem_work().
 	 */
 	spin_lock_irqsave(&v3d->job_lock, irqflags);
-	v3d->bin_job = job;
+	v3d->queue[V3D_BIN].active_job = &job->base;
 	/* Clear out the overflow allocation, so we don't
 	 * reuse the overflow attached to a previous job.
 	 */
@@ -134,10 +138,12 @@ static struct dma_fence *v3d_render_job_run(struct drm_sched_job *sched_job)
 	struct drm_device *dev = &v3d->drm;
 	struct dma_fence *fence;
 
-	if (unlikely(job->base.base.s_fence->finished.error))
+	if (unlikely(job->base.base.s_fence->finished.error)) {
+		v3d->queue[V3D_RENDER].active_job = NULL;
 		return NULL;
+	}
 
-	v3d->render_job = job;
+	v3d->queue[V3D_RENDER].active_job = &job->base;
 
 	/* Can we avoid this flush?  We need to be careful of
 	 * scheduling, though -- imagine job0 rendering to texture and
@@ -179,10 +185,12 @@ v3d_tfu_job_run(struct drm_sched_job *sched_job)
 	struct drm_device *dev = &v3d->drm;
 	struct dma_fence *fence;
 
-	if (unlikely(job->base.base.s_fence->finished.error))
+	if (unlikely(job->base.base.s_fence->finished.error)) {
+		v3d->queue[V3D_TFU].active_job = NULL;
 		return NULL;
+	}
 
-	v3d->tfu_job = job;
+	v3d->queue[V3D_TFU].active_job = &job->base;
 
 	fence = v3d_fence_create(v3d, V3D_TFU);
 	if (IS_ERR(fence))
@@ -221,10 +229,22 @@ v3d_csd_job_run(struct drm_sched_job *sched_job)
 	struct dma_fence *fence;
 	int i;
 
-	if (unlikely(job->base.base.s_fence->finished.error))
+	if (unlikely(job->base.base.s_fence->finished.error)) {
+		v3d->queue[V3D_CSD].active_job = NULL;
+		return NULL;
+	}
+
+	/* The HW interprets a workgroup size of 0 as 65536; however, the
+	 * user-space driver exposes a maximum of 65535. Therefore, a 0 in
+	 * any dimension means that we have no workgroups and the compute
+	 * shader should not be dispatched.
+	 */
+	if (!V3D_GET_FIELD(job->args.cfg[0], V3D_CSD_QUEUED_CFG0_NUM_WGS_X) ||
+	    !V3D_GET_FIELD(job->args.cfg[1], V3D_CSD_QUEUED_CFG1_NUM_WGS_Y) ||
+	    !V3D_GET_FIELD(job->args.cfg[2], V3D_CSD_QUEUED_CFG2_NUM_WGS_Z))
 		return NULL;
 
-	v3d->csd_job = job;
+	v3d->queue[V3D_CSD].active_job = &job->base;
 
 	v3d_invalidate_caches(v3d);
 
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 77017d951826..8019ef2cdcf2 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -93,7 +93,7 @@ static void kvp_send_key(struct work_struct *dummy);
 static void kvp_respond_to_host(struct hv_kvp_msg *msg, int error);
 static void kvp_timeout_func(struct work_struct *dummy);
 static void kvp_host_handshake_func(struct work_struct *dummy);
-static void kvp_register(int);
+static int kvp_register(int);
 
 static DECLARE_DELAYED_WORK(kvp_timeout_work, kvp_timeout_func);
 static DECLARE_DELAYED_WORK(kvp_host_handshake_work, kvp_host_handshake_func);
@@ -127,24 +127,26 @@ static void kvp_register_done(void)
 	hv_poll_channel(kvp_transaction.recv_channel, kvp_poll_wrapper);
 }
 
-static void
+static int
 kvp_register(int reg_value)
 {
 
 	struct hv_kvp_msg *kvp_msg;
 	char *version;
+	int ret;
 
 	kvp_msg = kzalloc(sizeof(*kvp_msg), GFP_KERNEL);
+	if (!kvp_msg)
+		return -ENOMEM;
 
-	if (kvp_msg) {
-		version = kvp_msg->body.kvp_register.version;
-		kvp_msg->kvp_hdr.operation = reg_value;
-		strcpy(version, HV_DRV_VERSION);
+	version = kvp_msg->body.kvp_register.version;
+	kvp_msg->kvp_hdr.operation = reg_value;
+	strcpy(version, HV_DRV_VERSION);
 
-		hvutil_transport_send(hvt, kvp_msg, sizeof(*kvp_msg),
-				      kvp_register_done);
-		kfree(kvp_msg);
-	}
+	ret = hvutil_transport_send(hvt, kvp_msg, sizeof(*kvp_msg),
+				    kvp_register_done);
+	kfree(kvp_msg);
+	return ret;
 }
 
 static void kvp_timeout_func(struct work_struct *dummy)
@@ -186,9 +188,8 @@ static int kvp_handle_handshake(struct hv_kvp_msg *msg)
 	 */
 	pr_debug("KVP: userspace daemon ver. %d connected\n",
 		 msg->kvp_hdr.operation);
-	kvp_register(dm_reg_value);
 
-	return 0;
+	return kvp_register(dm_reg_value);
 }
 
 
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 074168f34afd..8aa775c9382b 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -2027,8 +2027,8 @@ static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx)
 		return AE_NO_MEMORY;
 
 	/* If this range overlaps the virtual TPM, truncate it. */
-	if (end > VTPM_BASE_ADDRESS && start < VTPM_BASE_ADDRESS)
-		end = VTPM_BASE_ADDRESS;
+	if (end >= VTPM_BASE_ADDRESS && start < VTPM_BASE_ADDRESS)
+		end = VTPM_BASE_ADDRESS - 1;
 
 	new_res->name = "hyperv mmio";
 	new_res->flags = IORESOURCE_MEM;
@@ -2096,12 +2096,31 @@ static int vmbus_acpi_remove(struct acpi_device *device)
 static void vmbus_reserve_fb(void)
 {
 	resource_size_t start = 0, size;
+	resource_size_t low_mmio_base;
 	struct pci_dev *pdev;
 
 	if (efi_enabled(EFI_BOOT)) {
 		/* Gen2 VM: get FB base from EFI framebuffer */
 		start = screen_info.lfb_base;
 		size = max_t(__u32, screen_info.lfb_size, 0x800000);
+
+		low_mmio_base = hyperv_mmio->start;
+		if (!low_mmio_base || upper_32_bits(low_mmio_base) ||
+		    (start && start < low_mmio_base)) {
+			pr_warn("Unexpected low mmio base %pa\n", &low_mmio_base);
+		} else {
+			/*
+			 * If the kdump/kexec or CVM kernel's lfb_base
+			 * is 0, fall back to the low mmio base.
+			 */
+			if (!start)
+				start = low_mmio_base;
+			/*
+			 * Reserve half of the space below 4GB for high
+			 * resolutions, but cap the reservation to 128MB.
+			 */
+			size = min((SZ_4G - start) / 2, SZ_128M);
+		}
 	} else {
 		/* Gen1 VM: get FB base from PCI */
 		pdev = pci_get_device(PCI_VENDOR_ID_MICROSOFT,
@@ -2121,8 +2140,10 @@ static void vmbus_reserve_fb(void)
 		pci_dev_put(pdev);
 	}
 
-	if (!start)
+	if (!start) {
+		pr_warn("Unexpected framebuffer mmio base of zero\n");
 		return;
+	}
 
 	/*
 	 * Make a claim for the frame buffer in the resource tree under the
@@ -2132,6 +2153,8 @@ static void vmbus_reserve_fb(void)
 	 */
 	for (; !fb_mmio && (size >= 0x100000); size >>= 1)
 		fb_mmio = __request_region(hyperv_mmio, start, size, fb_mmio_name, 0);
+
+	pr_info("hv_mmio=%pR,%pR fb=%pR\n", hyperv_mmio, hyperv_mmio->sibling, fb_mmio);
 }
 
 /**
diff --git a/drivers/i2c/i2c-stub.c b/drivers/i2c/i2c-stub.c
index d642cad219d9..3a2f472dd6b0 100644
--- a/drivers/i2c/i2c-stub.c
+++ b/drivers/i2c/i2c-stub.c
@@ -214,6 +214,11 @@ static s32 stub_xfer(struct i2c_adapter *adap, u16 addr, unsigned short flags,
 		 * We ignore banks here, because banked chips don't use I2C
 		 * block transfers
 		 */
+		if (data->block[0] == 0 ||
+		    data->block[0] > I2C_SMBUS_BLOCK_MAX) {
+			ret = -EINVAL;
+			break;
+		}
 		if (data->block[0] > 256 - command)	/* Avoid overrun */
 			data->block[0] = 256 - command;
 		len = data->block[0];
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index edd1457a99b2..63fae7263c89 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -3870,7 +3870,7 @@ int bnxt_re_alloc_ucontext(struct ib_ucontext *ctx, struct ib_udata *udata)
 
 	uctx->rdev = rdev;
 
-	uctx->shpg = (void *)__get_free_page(GFP_KERNEL);
+	uctx->shpg = (void *)get_zeroed_page(GFP_KERNEL);
 	if (!uctx->shpg) {
 		rc = -ENOMEM;
 		goto fail;
diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
index 5831be454673..e5c5a7fd1552 100644
--- a/drivers/irqchip/irq-imgpdc.c
+++ b/drivers/irqchip/irq-imgpdc.c
@@ -378,6 +378,7 @@ static int pdc_intc_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "cannot add IRQ domain\n");
 		return -ENOMEM;
 	}
+	priv->domain->flags |= IRQ_DOMAIN_FLAG_DESTROY_GC;
 
 	/*
 	 * Set up 2 generic irq chips with 2 chip types.
@@ -465,6 +466,11 @@ static int pdc_intc_remove(struct platform_device *pdev)
 {
 	struct pdc_intc_priv *priv = platform_get_drvdata(pdev);
 
+	for (unsigned int i = 0; i < priv->nr_perips; ++i)
+		irq_set_chained_handler_and_data(priv->perip_irqs[i], NULL, NULL);
+
+	irq_set_chained_handler_and_data(priv->syswake_irq, NULL, NULL);
+
 	irq_domain_remove(priv->domain);
 	return 0;
 }
diff --git a/drivers/media/test-drivers/vidtv/vidtv_mux.c b/drivers/media/test-drivers/vidtv/vidtv_mux.c
index 7dad97881fdb..00ae52dbc96e 100644
--- a/drivers/media/test-drivers/vidtv/vidtv_mux.c
+++ b/drivers/media/test-drivers/vidtv/vidtv_mux.c
@@ -101,7 +101,8 @@ static int vidtv_mux_pid_ctx_init(struct vidtv_mux *m)
 	/* add a ctx for all PMT sections */
 	while (p) {
 		pid = vidtv_psi_get_pat_program_pid(p);
-		vidtv_mux_create_pid_ctx_once(m, pid);
+		if (!vidtv_mux_create_pid_ctx_once(m, pid))
+			goto free;
 		p = p->next;
 	}
 
@@ -170,6 +171,9 @@ static u32 vidtv_mux_push_si(struct vidtv_mux *m)
 	nit_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_NIT_PID);
 	eit_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_EIT_PID);
 
+	if (!pat_ctx || !sdt_ctx || !nit_ctx || !eit_ctx)
+		return 0;
+
 	pat_args.offset             = m->mux_buf_offset;
 	pat_args.continuity_counter = &pat_ctx->cc;
 
@@ -186,6 +190,8 @@ static u32 vidtv_mux_push_si(struct vidtv_mux *m)
 		}
 
 		pmt_ctx = vidtv_mux_get_pid_ctx(m, pmt_pid);
+		if (!pmt_ctx)
+			continue;
 
 		pmt_args.offset             = m->mux_buf_offset;
 		pmt_args.pmt                = m->si.pmt_secs[i];
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 571dad99bf82..83670f1d3bf1 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -262,6 +262,7 @@ struct fastrpc_channel_ctx {
 	struct fastrpc_device *fdevice;
 	bool secure;
 	bool unsigned_support;
+	u64 dma_mask;
 };
 
 struct fastrpc_device {
@@ -2174,13 +2175,14 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
 
 	kref_init(&data->refcount);
 
-	dev_set_drvdata(&rpdev->dev, data);
+	rdev->dma_mask = &data->dma_mask;
 	dma_set_mask_and_coherent(rdev, DMA_BIT_MASK(32));
 	INIT_LIST_HEAD(&data->users);
 	spin_lock_init(&data->lock);
 	idr_init(&data->ctx_idr);
 	data->domain_id = domain_id;
 	data->rpdev = rpdev;
+	dev_set_drvdata(&rpdev->dev, data);
 
 	err = of_platform_populate(rdev->of_node, NULL, NULL, rdev);
 	if (err)
@@ -2247,6 +2249,9 @@ static int fastrpc_rpmsg_callback(struct rpmsg_device *rpdev, void *data,
 	if (len < sizeof(*rsp))
 		return -EINVAL;
 
+	if (!cctx)
+		return -ENODEV;
+
 	ctxid = ((rsp->ctx & FASTRPC_CTXID_MASK) >> 4);
 
 	spin_lock_irqsave(&cctx->lock, flags);
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
index 64b209a0ad21..0c83a6487865 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
@@ -205,8 +205,8 @@ static void rmnet_dellink(struct net_device *dev, struct list_head *head)
 	ep = rmnet_get_endpoint(real_port, mux_id);
 	if (ep) {
 		hlist_del_init_rcu(&ep->hlnode);
-		rmnet_vnd_dellink(mux_id, real_port, ep);
-		kfree(ep);
+		real_port->nr_rmnet_devs--;
+		kfree_rcu(ep, rcu);
 	}
 
 	netdev_upper_dev_unlink(real_dev, dev);
@@ -230,9 +230,9 @@ static void rmnet_force_unassociate_device(struct net_device *real_dev)
 		hash_for_each_safe(port->muxed_ep, bkt_ep, tmp_ep, ep, hlnode) {
 			unregister_netdevice_queue(ep->egress_dev, &list);
 			netdev_upper_dev_unlink(real_dev, ep->egress_dev);
-			rmnet_vnd_dellink(ep->mux_id, port, ep);
 			hlist_del_init_rcu(&ep->hlnode);
-			kfree(ep);
+			port->nr_rmnet_devs--;
+			kfree_rcu(ep, rcu);
 		}
 		rmnet_unregister_real_device(real_dev);
 		unregister_netdevice_many(&list);
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.h b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.h
index 3d3cba56c516..ac52ebcd5a28 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.h
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.h
@@ -17,6 +17,7 @@ struct rmnet_endpoint {
 	u8 mux_id;
 	struct net_device *egress_dev;
 	struct hlist_node hlnode;
+	struct rcu_head rcu;
 };
 
 /* One instance of this structure is instantiated for each real_dev associated
diff --git a/drivers/net/wan/hdlc_ppp.c b/drivers/net/wan/hdlc_ppp.c
index 37a3c989cba1..27b771146656 100644
--- a/drivers/net/wan/hdlc_ppp.c
+++ b/drivers/net/wan/hdlc_ppp.c
@@ -621,7 +621,6 @@ static void ppp_start(struct net_device *dev)
 		struct proto *proto = &ppp->protos[i];
 
 		proto->dev = dev;
-		timer_setup(&proto->timer, ppp_timer, 0);
 		proto->state = CLOSED;
 	}
 	ppp->protos[IDX_LCP].pid = PID_LCP;
@@ -641,6 +640,15 @@ static void ppp_close(struct net_device *dev)
 	ppp_tx_flush();
 }
 
+static void ppp_timer_release(struct net_device *dev)
+{
+	struct ppp *ppp = get_ppp(dev);
+	int i;
+
+	for (i = 0; i < IDX_COUNT; i++)
+		timer_shutdown_sync(&ppp->protos[i].timer);
+}
+
 static struct hdlc_proto proto = {
 	.start		= ppp_start,
 	.stop		= ppp_stop,
@@ -649,6 +657,7 @@ static struct hdlc_proto proto = {
 	.ioctl		= ppp_ioctl,
 	.netif_rx	= ppp_rx,
 	.module		= THIS_MODULE,
+	.detach		= ppp_timer_release,
 };
 
 static const struct header_ops ppp_header_ops = {
@@ -659,7 +668,7 @@ static int ppp_ioctl(struct net_device *dev, struct if_settings *ifs)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
 	struct ppp *ppp;
-	int result;
+	int i, result;
 
 	switch (ifs->type) {
 	case IF_GET_PROTO:
@@ -687,6 +696,8 @@ static int ppp_ioctl(struct net_device *dev, struct if_settings *ifs)
 			return result;
 
 		ppp = get_ppp(dev);
+		for (i = 0; i < IDX_COUNT; i++)
+			timer_setup(&ppp->protos[i].timer, ppp_timer, 0);
 		spin_lock_init(&ppp->lock);
 		ppp->req_timeout = 2;
 		ppp->cr_retries = 10;
diff --git a/drivers/net/wireless/ath/ath11k/dp.c b/drivers/net/wireless/ath/ath11k/dp.c
index d070bcb3fe24..5baa1a5ea372 100644
--- a/drivers/net/wireless/ath/ath11k/dp.c
+++ b/drivers/net/wireless/ath/ath11k/dp.c
@@ -1039,6 +1039,7 @@ void ath11k_dp_free(struct ath11k_base *ab)
 		idr_destroy(&dp->tx_ring[i].txbuf_idr);
 		spin_unlock_bh(&dp->tx_ring[i].tx_idr_lock);
 		kfree(dp->tx_ring[i].tx_status);
+		dp->tx_ring[i].tx_status = NULL;
 	}
 
 	/* Deinit any SOC level resource */
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c
index 229a365370ef..4bddc62fa551 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c
@@ -16,6 +16,7 @@ static const struct usb_device_id mt76x2u_device_table[] = {
 	{ USB_DEVICE(0x0e8d, 0x7612) },	/* Aukey USBAC1200 - Alfa AWUS036ACM */
 	{ USB_DEVICE(0x057c, 0x8503) },	/* Avm FRITZ!WLAN AC860 */
 	{ USB_DEVICE(0x7392, 0xb711) },	/* Edimax EW 7722 UAC */
+	{ USB_DEVICE(0x056e, 0x400a) },	/* ELECOM WDC-867SU3S */
 	{ USB_DEVICE(0x0e8d, 0x7632) },	/* HC-M7662BU1 */
 	{ USB_DEVICE(0x0471, 0x2126) }, /* LiteOn WN4516R module, nonstandard USB connector */
 	{ USB_DEVICE(0x0471, 0x7600) }, /* LiteOn WN4519R module, nonstandard USB connector */
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.h b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.h
index a9ed6fd41089..e7dd888ee692 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.h
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.h
@@ -291,7 +291,7 @@ static inline int get_rx_desc_paggr(__le32 *__pdesc)
 
 static inline int get_rx_status_desc_rpt_sel(__le32 *__pdesc)
 {
-	return le32_get_bits(*(__pdesc + 1), BIT(28));
+	return le32_get_bits(*(__pdesc + 2), BIT(28));
 }
 
 static inline int get_rx_desc_rxmcs(__le32 *__pdesc)
diff --git a/drivers/ntb/hw/epf/ntb_hw_epf.c b/drivers/ntb/hw/epf/ntb_hw_epf.c
index 9a0745664dcc..c5bd984823ae 100644
--- a/drivers/ntb/hw/epf/ntb_hw_epf.c
+++ b/drivers/ntb/hw/epf/ntb_hw_epf.c
@@ -649,7 +649,8 @@ static void ntb_epf_deinit_pci(struct ntb_epf_dev *ndev)
 	struct pci_dev *pdev = ndev->ntb.pdev;
 
 	pci_iounmap(pdev, ndev->ctrl_reg);
-	pci_iounmap(pdev, ndev->peer_spad_reg);
+	if (ndev->barno_map[BAR_PEER_SPAD] != ndev->barno_map[BAR_CONFIG])
+		pci_iounmap(pdev, ndev->peer_spad_reg);
 	pci_iounmap(pdev, ndev->db_reg);
 
 	pci_clear_master(pdev);
diff --git a/drivers/power/reset/linkstation-poweroff.c b/drivers/power/reset/linkstation-poweroff.c
index 02f5fdb8ffc4..e56d75bfcc43 100644
--- a/drivers/power/reset/linkstation-poweroff.c
+++ b/drivers/power/reset/linkstation-poweroff.c
@@ -163,10 +163,10 @@ static int __init linkstation_poweroff_init(void)
 	dn = of_find_matching_node(NULL, ls_poweroff_of_match);
 	if (!dn)
 		return -ENODEV;
-	of_node_put(dn);
 
 	match = of_match_node(ls_poweroff_of_match, dn);
 	cfg = match->data;
+	of_node_put(dn);
 
 	dn = of_find_node_by_name(NULL, cfg->mdio_node_name);
 	if (!dn)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 454e19d87e35..d55a80f05d31 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2183,8 +2183,16 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
 	if (rdev->use_count) {
 		ret = regulator_enable(rdev->supply);
 		if (ret < 0) {
-			_regulator_put(rdev->supply);
+			struct regulator *supply;
+
+			regulator_lock_two(rdev, rdev->supply->rdev, &ww_ctx);
+
+			supply = rdev->supply;
 			rdev->supply = NULL;
+
+			regulator_unlock_two(rdev, supply->rdev, &ww_ctx);
+
+			regulator_put(supply);
 			goto out;
 		}
 	}
diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c
index 3e0b8f3496ed..a271fceb16f4 100644
--- a/drivers/rpmsg/rpmsg_char.c
+++ b/drivers/rpmsg/rpmsg_char.c
@@ -75,6 +75,7 @@ int rpmsg_chrdev_eptdev_destroy(struct device *dev, void *data)
 	struct rpmsg_eptdev *eptdev = dev_to_eptdev(dev);
 
 	mutex_lock(&eptdev->ept_lock);
+	eptdev->rpdev = NULL;
 	if (eptdev->ept) {
 		/* The default endpoint is released by the rpmsg core */
 		if (!eptdev->default_ept)
@@ -128,6 +129,11 @@ static int rpmsg_eptdev_open(struct inode *inode, struct file *filp)
 		return -EBUSY;
 	}
 
+	if (!eptdev->rpdev) {
+		mutex_unlock(&eptdev->ept_lock);
+		return -ENETRESET;
+	}
+
 	get_device(dev);
 
 	/*
@@ -279,7 +285,9 @@ static __poll_t rpmsg_eptdev_poll(struct file *filp, poll_table *wait)
 	if (!skb_queue_empty(&eptdev->queue))
 		mask |= EPOLLIN | EPOLLRDNORM;
 
+	mutex_lock(&eptdev->ept_lock);
 	mask |= rpmsg_poll(eptdev->ept, filp, wait);
+	mutex_unlock(&eptdev->ept_lock);
 
 	return mask;
 }
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index ee589ad52669..7d4841b72df0 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -673,8 +673,10 @@ static int dw8250_probe(struct platform_device *pdev)
 	 */
 	if (data->clk) {
 		err = clk_notifier_register(data->clk, &data->clk_notifier);
-		if (err)
+		if (err) {
+			serial8250_unregister_port(data->data.line);
 			return dev_err_probe(dev, err, "Failed to set the clock notifier\n");
+		}
 		queue_work(system_unbound_wq, &data->clk_work);
 	}
 
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index 01c96537fa36..27b44dc12385 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -699,7 +699,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 	}
 	*ppos += written;
 	ret = written;
-	if (written)
+	if (written && vc)
 		vcs_scr_updated(vc);
 
 unlock_out:
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index b9c8aa37d20a..bd0be854b116 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1855,6 +1855,18 @@ int fb_new_modelist(struct fb_info *info)
 	if (list_empty(&info->modelist))
 		return 1;
 
+	/*
+	 * The new modelist may not contain the current mode (info->var), and
+	 * fbcon_new_modelist() below only re-points consoles mapped to this
+	 * framebuffer. Add the current mode here so info->var keeps a match
+	 * even when fbcon is unbound.
+	 */
+	if (!fb_match_mode(&info->var, &info->modelist)) {
+		fb_var_to_videomode(&mode, &info->var);
+		if (fb_add_videomode(&mode, &info->modelist))
+			return 1;
+	}
+
 	fbcon_new_modelist(info);
 
 	return 0;
diff --git a/drivers/video/fbdev/core/modedb.c b/drivers/video/fbdev/core/modedb.c
index e78ec7f72846..81c37eacf22b 100644
--- a/drivers/video/fbdev/core/modedb.c
+++ b/drivers/video/fbdev/core/modedb.c
@@ -258,7 +258,7 @@ static const struct fb_videomode modedb[] = {
 		FB_VMODE_DOUBLE },
 
 	/* 1920x1080 @ 60 Hz, 67.3 kHz hsync */
-	{ NULL, 60, 1920, 1080, 6734, 148, 88, 36, 4, 44, 5, 0,
+	{ NULL, 60, 1920, 1080, 6734, 148, 88, 36, 4, 44, 5,
 		FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 		FB_VMODE_NONINTERLACED },
 
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index e7372d56c13f..7b7bfb47da5d 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -657,7 +657,7 @@ static int new_lockspace(const char *name, const char *cluster,
 	   lockspace to start running (via sysfs) in dlm_ls_start(). */
 
 	error = do_uevent(ls, 1);
-	if (error)
+	if (error < 0)
 		goto out_recoverd;
 
 	/* wait until recovery is successful or failed */
diff --git a/fs/exfat/dir.c b/fs/exfat/dir.c
index e651ffb06a43..00d125979fd2 100644
--- a/fs/exfat/dir.c
+++ b/fs/exfat/dir.c
@@ -1040,12 +1040,12 @@ int exfat_find_dir_entry(struct super_block *sb, struct exfat_inode_info *ei,
 				continue;
 			}
 
-			brelse(bh);
 			if (entry_type == TYPE_EXTEND) {
 				unsigned short entry_uniname[16], unichar;
 
 				if (step != DIRENT_STEP_NAME ||
 				    name_len >= MAX_NAME_LENGTH) {
+					brelse(bh);
 					step = DIRENT_STEP_FILE;
 					continue;
 				}
@@ -1056,6 +1056,7 @@ int exfat_find_dir_entry(struct super_block *sb, struct exfat_inode_info *ei,
 					uniname += EXFAT_FILE_NAME_LEN;
 
 				len = exfat_extract_uni_name(ep, entry_uniname);
+				brelse(bh);
 				name_len += len;
 
 				unichar = *(uniname+len);
@@ -1074,6 +1075,7 @@ int exfat_find_dir_entry(struct super_block *sb, struct exfat_inode_info *ei,
 				continue;
 			}
 
+			brelse(bh);
 			if (entry_type &
 					(TYPE_CRITICAL_SEC | TYPE_BENIGN_SEC)) {
 				if (step == DIRENT_STEP_SECD) {
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index a1fb99d2b472..c0c1e8652707 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -518,6 +518,14 @@ static int ext4_read_inline_page(struct inode *inode, struct page *page)
 		goto out;
 
 	len = min_t(size_t, ext4_get_inline_size(inode), i_size_read(inode));
+	if (len > PAGE_SIZE) {
+		ext4_error_inode(inode, __func__, __LINE__, 0,
+				 "inline size %zu exceeds PAGE_SIZE", len);
+		ret = -EFSCORRUPTED;
+		brelse(iloc.bh);
+		goto out;
+	}
+
 	kaddr = kmap_atomic(page);
 	ret = ext4_read_inline_data(inode, kaddr, len, &iloc);
 	flush_dcache_page(page);
diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index 5bbc44a5216e..a441769e7df5 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -46,6 +46,7 @@ static inline int f2fs_acl_count(size_t size)
 static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
 {
 	int i, count;
+	int err = -EINVAL;
 	struct posix_acl *acl;
 	struct f2fs_acl_header *hdr = (struct f2fs_acl_header *)value;
 	struct f2fs_acl_entry *entry = (struct f2fs_acl_entry *)(hdr + 1);
@@ -69,8 +70,11 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
 
 	for (i = 0; i < count; i++) {
 
-		if ((char *)entry > end)
+		if (unlikely((char *)entry +
+				sizeof(struct f2fs_acl_entry_short) > end)) {
+			err = -EFSCORRUPTED;
 			goto fail;
+		}
 
 		acl->a_entries[i].e_tag  = le16_to_cpu(entry->e_tag);
 		acl->a_entries[i].e_perm = le16_to_cpu(entry->e_perm);
@@ -85,6 +89,11 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
 			break;
 
 		case ACL_USER:
+			if (unlikely((char *)entry +
+					sizeof(struct f2fs_acl_entry) > end)) {
+				err = -EFSCORRUPTED;
+				goto fail;
+			}
 			acl->a_entries[i].e_uid =
 				make_kuid(&init_user_ns,
 						le32_to_cpu(entry->e_id));
@@ -92,6 +101,11 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
 					sizeof(struct f2fs_acl_entry));
 			break;
 		case ACL_GROUP:
+			if (unlikely((char *)entry +
+					sizeof(struct f2fs_acl_entry) > end)) {
+				err = -EFSCORRUPTED;
+				goto fail;
+			}
 			acl->a_entries[i].e_gid =
 				make_kgid(&init_user_ns,
 						le32_to_cpu(entry->e_id));
@@ -107,7 +121,7 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
 	return acl;
 fail:
 	posix_acl_release(acl);
-	return ERR_PTR(-EINVAL);
+	return ERR_PTR(err);
 }
 
 static void *f2fs_acl_to_disk(struct f2fs_sb_info *sbi,
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index ba7eaf4d86de..42f063683a7b 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1786,8 +1786,15 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 
 	if (f2fs_is_pinned_file(inode)) {
 		block_t sec_blks = CAP_BLKS_PER_SEC(sbi);
-		block_t sec_len = roundup(map.m_len, sec_blks);
+		block_t sec_len;
 
+		if (map.m_lblk % sec_blks) {
+			map.m_lblk = rounddown(map.m_lblk, sec_blks);
+			map.m_len = pg_end - map.m_lblk;
+			if (off_end)
+				map.m_len++;
+		}
+		sec_len = roundup(map.m_len, sec_blks);
 		map.m_len = sec_blks;
 next_alloc:
 		if (has_not_enough_free_secs(sbi, 0,
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 96d4f15cf791..b79651c5bd04 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -476,8 +476,13 @@ static int do_read_inode(struct inode *inode)
 
 static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino)
 {
-	return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) ||
-		ino == F2FS_COMPRESS_INO(sbi);
+	if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
+		return true;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+	if (test_opt(sbi, COMPRESS_CACHE) && ino == F2FS_COMPRESS_INO(sbi))
+		return true;
+#endif
+	return false;
 }
 
 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 58ec5bac6ce9..2d941ee78d9e 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -839,6 +839,10 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 	if (WARN_ON(PageMlocked(oldpage)))
 		goto out_fallback_unlock;
 
+	err = lock_request(cs->req);
+	if (err)
+		goto out_fallback_unlock;
+
 	replace_page_cache_page(oldpage, newpage);
 
 	get_page(newpage);
@@ -852,20 +856,7 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 	 */
 	pipe_buf_release(cs->pipe, buf);
 
-	err = 0;
-	spin_lock(&cs->req->waitq.lock);
-	if (test_bit(FR_ABORTED, &cs->req->flags))
-		err = -ENOENT;
-	else
-		*pagep = newpage;
-	spin_unlock(&cs->req->waitq.lock);
-
-	if (err) {
-		unlock_page(newpage);
-		put_page(newpage);
-		goto out_put_old;
-	}
-
+	*pagep = newpage;
 	unlock_page(oldpage);
 	/* Drop ref for ap->pages[] array */
 	put_page(oldpage);
@@ -1718,6 +1709,10 @@ static int fuse_retrieve(struct fuse_mount *fm, struct inode *inode,
 		page = find_get_page(mapping, index);
 		if (!page)
 			break;
+		if (!PageUptodate(page)) {
+			put_page(page);
+			break;
+		}
 
 		this_num = min_t(unsigned, num, PAGE_SIZE - offset);
 		ap->pages[ap->num_pages] = page;
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 12c77089d0b4..b7568bebe67d 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -356,8 +356,14 @@ void fuse_file_release(struct inode *inode, struct fuse_file *ff,
 	 * aio and closes the fd before the aio completes.  Since aio takes its
 	 * own ref to the file, the IO completion has to drop the ref, which is
 	 * how the fuse server can end up closing its clients' files.
+	 *
+	 * Exception is virtio-fs, which is not affected by the above (server is
+	 * on host, cannot close open files in guest).  Virtio-fs needs sync
+	 * release, because the num_waiting mechanism to wait for all requests
+	 * before commencing with fs shutdown doesn't work if submounts are
+	 * used.
 	 */
-	fuse_file_put(ff, false);
+	fuse_file_put(ff, ff->fm->fc->auto_submounts);
 }
 
 void fuse_release_common(struct file *file, bool isdir)
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 34cd66c98021..fa310bf1ed9a 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -2070,11 +2070,11 @@ pnfs_update_layout(struct inode *ino,
 		dprintk("%s wait for layoutreturn\n", __func__);
 		lseg = ERR_PTR(pnfs_prepare_to_retry_layoutget(lo));
 		if (!IS_ERR(lseg)) {
-			pnfs_put_layout_hdr(lo);
 			dprintk("%s retrying\n", __func__);
 			trace_pnfs_update_layout(ino, pos, count, iomode, lo,
 						 lseg,
 						 PNFS_UPDATE_LAYOUT_RETRY);
+			pnfs_put_layout_hdr(lo);
 			goto lookup_again;
 		}
 		trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg,
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index 31afa88742f6..08634d97746f 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -1057,14 +1057,14 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags)
 	/* r_netid */
 	nlen = xdr_stream_decode_string_dup(xdr, &netid, XDR_MAX_NETOBJ,
 					    gfp_flags);
-	if (unlikely(nlen < 0))
+	if (unlikely(nlen <= 0))
 		goto out_err;
 
 	/* r_addr: ip/ip6addr with port in dec octets - see RFC 5665 */
 	/* port is ".ABC.DEF", 8 chars max */
 	rlen = xdr_stream_decode_string_dup(xdr, &buf, INET6_ADDRSTRLEN +
 					    IPV6_SCOPE_ID_LEN + 8, gfp_flags);
-	if (unlikely(rlen < 0))
+	if (unlikely(rlen <= 0))
 		goto out_free_netid;
 
 	/* replace port '.' with '-' */
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 6c4fe9409611..44b74d83560b 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -131,10 +131,7 @@ static __be32 nfsacld_proc_setacl(struct svc_rqst *rqstp)
 	resp->status = fh_getattr(fh, &resp->stat);
 
 out:
-	/* argp->acl_{access,default} may have been allocated in
-	   nfssvc_decode_setaclargs. */
-	posix_acl_release(argp->acl_access);
-	posix_acl_release(argp->acl_default);
+	/* argp->acl_{access,default} are released in nfsaclsvc_release_setacl. */
 	return rpc_success;
 
 out_drop_lock:
@@ -312,6 +309,16 @@ static void nfsaclsvc_release_access(struct svc_rqst *rqstp)
 
 struct nfsd3_voidargs { int dummy; };
 
+static void nfsaclsvc_release_setacl(struct svc_rqst *rqstp)
+{
+	struct nfsd3_setaclargs *argp = rqstp->rq_argp;
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
+
+	fh_put(&resp->fh);
+	posix_acl_release(argp->acl_access);
+	posix_acl_release(argp->acl_default);
+}
+
 #define ST 1		/* status*/
 #define AT 21		/* attributes */
 #define pAT (1+AT)	/* post attributes - conditional */
@@ -345,7 +352,7 @@ static const struct svc_procedure nfsd_acl_procedures2[5] = {
 		.pc_func = nfsacld_proc_setacl,
 		.pc_decode = nfsaclsvc_decode_setaclargs,
 		.pc_encode = nfssvc_encode_attrstatres,
-		.pc_release = nfssvc_release_attrstat,
+		.pc_release = nfsaclsvc_release_setacl,
 		.pc_argsize = sizeof(struct nfsd3_setaclargs),
 		.pc_argzero = sizeof(struct nfsd3_setaclargs),
 		.pc_ressize = sizeof(struct nfsd_attrstat),
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index e6bb621f1ffd..d100a8a00e08 100644
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -118,10 +118,7 @@ static __be32 nfsd3_proc_setacl(struct svc_rqst *rqstp)
 out_errno:
 	resp->status = nfserrno(error);
 out:
-	/* argp->acl_{access,default} may have been allocated in
-	   nfs3svc_decode_setaclargs. */
-	posix_acl_release(argp->acl_access);
-	posix_acl_release(argp->acl_default);
+	/* argp->acl_{access,default} are released in nfs3svc_release_setacl. */
 	return rpc_success;
 }
 
@@ -225,6 +222,16 @@ static void nfs3svc_release_getacl(struct svc_rqst *rqstp)
 
 struct nfsd3_voidargs { int dummy; };
 
+static void nfs3svc_release_setacl(struct svc_rqst *rqstp)
+{
+	struct nfsd3_setaclargs *argp = rqstp->rq_argp;
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
+
+	fh_put(&resp->fh);
+	posix_acl_release(argp->acl_access);
+	posix_acl_release(argp->acl_default);
+}
+
 #define ST 1		/* status*/
 #define AT 21		/* attributes */
 #define pAT (1+AT)	/* post attributes - conditional */
@@ -258,7 +265,7 @@ static const struct svc_procedure nfsd_acl_procedures3[3] = {
 		.pc_func = nfsd3_proc_setacl,
 		.pc_decode = nfs3svc_decode_setaclargs,
 		.pc_encode = nfs3svc_encode_setaclres,
-		.pc_release = nfs3svc_release_fhandle,
+		.pc_release = nfs3svc_release_setacl,
 		.pc_argsize = sizeof(struct nfsd3_setaclargs),
 		.pc_argzero = sizeof(struct nfsd3_setaclargs),
 		.pc_ressize = sizeof(struct nfsd3_attrstat),
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 659698971810..d2505f817d78 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -815,7 +815,8 @@ __cld_pipe_inprogress_downcall(const struct cld_msg_v2 __user *cmsg,
 			if (IS_ERR(name.data))
 				return PTR_ERR(name.data);
 			name.len = namelen;
-			get_user(princhashlen, &ci->cc_princhash.cp_len);
+			if (get_user(princhashlen, &ci->cc_princhash.cp_len))
+				return -EFAULT;
 			if (princhashlen > 0) {
 				princhash.data = memdup_user(
 						&ci->cc_princhash.cp_data,
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index d83254ae3e71..e2f5a9ae4c05 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1821,10 +1821,11 @@ static __be32 nfsd4_decode_secinfo_no_name(struct nfsd4_compoundargs *argp,
 					   union nfsd4_op_u *u)
 {
 	struct nfsd4_secinfo_no_name *sin = &u->secinfo_no_name;
+
+	sin->sin_exp = NULL;
 	if (xdr_stream_decode_u32(argp->xdr, &sin->sin_style) < 0)
 		return nfserr_bad_xdr;
 
-	sin->sin_exp = NULL;
 	return nfs_ok;
 }
 
diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 7dc650b0b832..4607ea6068c7 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -846,6 +846,12 @@ static int ntfs_getxattr(const struct xattr_handler *handler, struct dentry *de,
 	return err;
 }
 
+static bool ntfs_is_reserved_lxattr(const char *name)
+{
+	return !strcmp(name, "$LXUID") || !strcmp(name, "$LXGID") ||
+	       !strcmp(name, "$LXMOD") || !strcmp(name, "$LXDEV");
+}
+
 /*
  * ntfs_setxattr - inode_operations::setxattr
  */
@@ -951,6 +957,12 @@ static noinline int ntfs_setxattr(const struct xattr_handler *handler,
 		goto out;
 	}
 
+	/* Do not allow non privileged users to change $LXUID/$LXGID... */
+	if (ntfs_is_reserved_lxattr(name) && !capable(CAP_SYS_ADMIN)) {
+		err = -EPERM;
+		goto out;
+	}
+
 	/* Deal with NTFS extended attribute. */
 	err = ntfs_set_ea(inode, name, name_len, value, size, flags, 0);
 
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 1adf206ba538..8104ba761b9b 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -201,8 +201,16 @@ static int ocfs2_validate_gd_parent(struct super_block *sb,
 				    int resize)
 {
 	unsigned int max_bits;
+	unsigned int max_bitmap_bits;
+	unsigned int max_bitmap_size;
+	int suballocator;
 	struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
 
+	suballocator = le64_to_cpu(di->i_blkno) != OCFS2_SB(sb)->bitmap_blkno;
+	max_bitmap_size = ocfs2_group_bitmap_size(sb, suballocator,
+						  OCFS2_SB(sb)->s_feature_incompat);
+	max_bitmap_bits = max_bitmap_size * 8;
+
 	if (di->i_blkno != gd->bg_parent_dinode) {
 		do_error("Group descriptor #%llu has bad parent pointer (%llu, expected %llu)\n",
 			 (unsigned long long)bh->b_blocknr,
@@ -210,6 +218,20 @@ static int ocfs2_validate_gd_parent(struct super_block *sb,
 			 (unsigned long long)le64_to_cpu(di->i_blkno));
 	}
 
+	if (le16_to_cpu(gd->bg_size) > max_bitmap_size) {
+		do_error("Group descriptor #%llu has bitmap size %u but physical max of %u\n",
+			 (unsigned long long)bh->b_blocknr,
+			 le16_to_cpu(gd->bg_size),
+			 max_bitmap_size);
+	}
+
+	if (le16_to_cpu(gd->bg_bits) > max_bitmap_bits) {
+		do_error("Group descriptor #%llu has bit count %u but physical max of %u\n",
+			 (unsigned long long)bh->b_blocknr,
+			 le16_to_cpu(gd->bg_bits),
+			 max_bitmap_bits);
+	}
+
 	max_bits = le16_to_cpu(di->id2.i_chain.cl_cpg) * le16_to_cpu(di->id2.i_chain.cl_bpc);
 	if (le16_to_cpu(gd->bg_bits) > max_bits) {
 		do_error("Group descriptor #%llu has bit count of %u\n",
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 597955215a95..1d49439035d2 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -605,6 +605,11 @@ int smb2_check_user_session(struct ksmbd_work *work)
 					sess_id, work->sess->id);
 			return -EINVAL;
 		}
+		if (work->sess->state != SMB2_SESSION_VALID) {
+			pr_err("compound request on a non-valid session (state %d)\n",
+					work->sess->state);
+			return -EINVAL;
+		}
 		return 1;
 	}
 
diff --git a/fs/smb/server/smbacl.c b/fs/smb/server/smbacl.c
index f36ecfa94146..47c6b509cf21 100644
--- a/fs/smb/server/smbacl.c
+++ b/fs/smb/server/smbacl.c
@@ -1331,7 +1331,9 @@ int smb_check_perm_dacl(struct ksmbd_conn *conn, const struct path *path,
 			break;
 		aces_size -= ace_size;
 
-		if (ace->sid.num_subauth > SID_MAX_SUB_AUTHORITIES)
+		if (ace->sid.num_subauth > SID_MAX_SUB_AUTHORITIES ||
+		    ace_size < offsetof(struct smb_ace, sid) + CIFS_SID_BASE_SIZE +
+			      sizeof(__le32) * ace->sid.num_subauth)
 			break;
 
 		if (!compare_sids(&sid, &ace->sid) ||
diff --git a/include/keys/request_key_auth-type.h b/include/keys/request_key_auth-type.h
index 36b89a933310..01e42ee5f409 100644
--- a/include/keys/request_key_auth-type.h
+++ b/include/keys/request_key_auth-type.h
@@ -9,12 +9,14 @@
 #define _KEYS_REQUEST_KEY_AUTH_TYPE_H
 
 #include <linux/key.h>
+#include <linux/refcount.h>
 
 /*
  * Authorisation record for request_key().
  */
 struct request_key_auth {
 	struct rcu_head		rcu;
+	refcount_t		usage;
 	struct key		*target_key;
 	struct key		*dest_keyring;
 	const struct cred	*cred;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 04fac4cdcfbc..624380c4fef8 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1621,6 +1621,11 @@ int kvm_request_irq_source_id(struct kvm *kvm);
 void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
 bool kvm_arch_irqfd_allowed(struct kvm *kvm, struct kvm_irqfd *args);
 
+static inline bool is_gfn_in_memslot(const struct kvm_memory_slot *slot, gfn_t gfn)
+{
+	return gfn >= slot->base_gfn && gfn < slot->base_gfn + slot->npages;
+}
+
 /*
  * Returns a pointer to the memslot if it contains gfn.
  * Otherwise returns NULL.
@@ -1631,7 +1636,7 @@ try_get_memslot(struct kvm_memory_slot *slot, gfn_t gfn)
 	if (!slot)
 		return NULL;
 
-	if (gfn >= slot->base_gfn && gfn < slot->base_gfn + slot->npages)
+	if (is_gfn_in_memslot(slot, gfn))
 		return slot;
 	else
 		return NULL;
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 43d8734ac0eb..90aa802a3066 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -339,6 +339,16 @@ extern void lock_unpin_lock(struct lockdep_map *lock, struct pin_cookie);
 #define lockdep_repin_lock(l,c)	lock_repin_lock(&(l)->dep_map, (c))
 #define lockdep_unpin_lock(l,c)	lock_unpin_lock(&(l)->dep_map, (c))
 
+/*
+ * Must use lock_map_aquire_try() with override maps to avoid
+ * lockdep thinking they participate in the block chain.
+ */
+#define DEFINE_WAIT_OVERRIDE_MAP(_name, _wait_type)	\
+	struct lockdep_map _name = {			\
+		.name = #_name "-wait-type-override",	\
+		.wait_type_inner = _wait_type,		\
+		.lock_type = LD_LOCK_WAIT_OVERRIDE, }
+
 #else /* !CONFIG_LOCKDEP */
 
 static inline void lockdep_init_task(struct task_struct *task)
@@ -427,6 +437,9 @@ extern int lockdep_is_held(const void *);
 #define lockdep_repin_lock(l, c)		do { (void)(l); (void)(c); } while (0)
 #define lockdep_unpin_lock(l, c)		do { (void)(l); (void)(c); } while (0)
 
+#define DEFINE_WAIT_OVERRIDE_MAP(_name, _wait_type)	\
+	struct lockdep_map __maybe_unused _name = {}
+
 #endif /* !LOCKDEP */
 
 enum xhlock_context_t {
@@ -552,6 +565,7 @@ do {									\
 #define rwsem_release(l, i)			lock_release(l, i)
 
 #define lock_map_acquire(l)			lock_acquire_exclusive(l, 0, 0, NULL, _THIS_IP_)
+#define lock_map_acquire_try(l)			lock_acquire_exclusive(l, 0, 1, NULL, _THIS_IP_)
 #define lock_map_acquire_read(l)		lock_acquire_shared_recursive(l, 0, 0, NULL, _THIS_IP_)
 #define lock_map_acquire_tryread(l)		lock_acquire_shared_recursive(l, 0, 1, NULL, _THIS_IP_)
 #define lock_map_release(l)			lock_release(l, _THIS_IP_)
diff --git a/include/linux/lockdep_types.h b/include/linux/lockdep_types.h
index d22430840b53..59f4fb1626ea 100644
--- a/include/linux/lockdep_types.h
+++ b/include/linux/lockdep_types.h
@@ -33,6 +33,7 @@ enum lockdep_wait_type {
 enum lockdep_lock_type {
 	LD_LOCK_NORMAL = 0,	/* normal, catch all */
 	LD_LOCK_PERCPU,		/* percpu */
+	LD_LOCK_WAIT_OVERRIDE,	/* annotation */
 	LD_LOCK_MAX,
 };
 
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index 3e7bfc0f65ae..b53335ed2d0e 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -130,9 +130,7 @@ ring_buffer_consume(struct trace_buffer *buffer, int cpu, u64 *ts,
 		    unsigned long *lost_events);
 
 struct ring_buffer_iter *
-ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
-void ring_buffer_read_prepare_sync(void);
-void ring_buffer_read_start(struct ring_buffer_iter *iter);
+ring_buffer_read_start(struct trace_buffer *buffer, int cpu, gfp_t flags);
 void ring_buffer_read_finish(struct ring_buffer_iter *iter);
 
 struct ring_buffer_event *
diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h
index 5c5a2d65184c..9ebaa8773773 100644
--- a/include/linux/skmsg.h
+++ b/include/linux/skmsg.h
@@ -4,6 +4,7 @@
 #ifndef _LINUX_SKMSG_H
 #define _LINUX_SKMSG_H
 
+#include <linux/bitops.h>
 #include <linux/bpf.h>
 #include <linux/filter.h>
 #include <linux/scatterlist.h>
@@ -188,11 +189,14 @@ static inline void sk_msg_xfer(struct sk_msg *dst, struct sk_msg *src,
 			       int which, u32 size)
 {
 	dst->sg.data[which] = src->sg.data[which];
+	__assign_bit(which, dst->sg.copy, test_bit(which, src->sg.copy));
 	dst->sg.data[which].length  = size;
 	dst->sg.size		   += size;
 	src->sg.size		   -= size;
 	src->sg.data[which].length -= size;
 	src->sg.data[which].offset += size;
+	if (!src->sg.data[which].length)
+		__clear_bit(which, src->sg.copy);
 }
 
 static inline void sk_msg_xfer_full(struct sk_msg *dst, struct sk_msg *src)
@@ -262,16 +266,19 @@ static inline void sk_msg_page_add(struct sk_msg *msg, struct page *page,
 static inline void sk_msg_sg_copy(struct sk_msg *msg, u32 i, bool copy_state)
 {
 	do {
-		if (copy_state)
-			__set_bit(i, msg->sg.copy);
-		else
-			__clear_bit(i, msg->sg.copy);
+		__assign_bit(i, msg->sg.copy, copy_state);
 		sk_msg_iter_var_next(i);
 		if (i == msg->sg.end)
 			break;
 	} while (1);
 }
 
+static inline void sk_msg_sg_copy_assign(struct sk_msg *dst, u32 dst_i,
+					 const struct sk_msg *src, u32 src_i)
+{
+	__assign_bit(dst_i, dst->sg.copy, test_bit(src_i, src->sg.copy));
+}
+
 static inline void sk_msg_sg_copy_set(struct sk_msg *msg, u32 start)
 {
 	sk_msg_sg_copy(msg, start, true);
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index dafa0a32e6e1..3329c2eaea9f 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -422,6 +422,9 @@ struct nft_set_ext;
  *	@remove: remove element from set
  *	@walk: iterate over all set elements
  *	@get: get set elements
+ *	@ksize: kernel set size
+ *	@usize: userspace set size
+ *	@adjust_maxsize: delta to adjust maximum set size
  *	@privsize: function to return size of set private data
  *	@init: initialize private data of new set instance
  *	@destroy: destroy private data of set instance
@@ -470,6 +473,9 @@ struct nft_set_ops {
 					       const struct nft_set *set,
 					       const struct nft_set_elem *elem,
 					       unsigned int flags);
+	u32				(*ksize)(u32 size);
+	u32				(*usize)(u32 size);
+	u32				(*adjust_maxsize)(const struct nft_set *set);
 	void				(*commit)(struct nft_set *set);
 	void				(*abort)(const struct nft_set *set);
 	u64				(*privsize)(const struct nlattr * const nla[],
diff --git a/include/net/phonet/pn_dev.h b/include/net/phonet/pn_dev.h
index e9dc8dca5817..6b2102b4ece3 100644
--- a/include/net/phonet/pn_dev.h
+++ b/include/net/phonet/pn_dev.h
@@ -38,7 +38,7 @@ int phonet_address_add(struct net_device *dev, u8 addr);
 int phonet_address_del(struct net_device *dev, u8 addr);
 u8 phonet_address_get(struct net_device *dev, u8 addr);
 int phonet_address_lookup(struct net *net, u8 addr);
-void phonet_address_notify(int event, struct net_device *dev, u8 addr);
+void phonet_address_notify(struct net *net, int event, u32 ifindex, u8 addr);
 
 int phonet_route_add(struct net_device *dev, u8 daddr);
 int phonet_route_del(struct net_device *dev, u8 daddr);
diff --git a/include/net/tc_act/tc_pedit.h b/include/net/tc_act/tc_pedit.h
index 83fe39931781..a26d4cd3b8d6 100644
--- a/include/net/tc_act/tc_pedit.h
+++ b/include/net/tc_act/tc_pedit.h
@@ -14,7 +14,6 @@ struct tcf_pedit_key_ex {
 struct tcf_pedit_parms {
 	struct tc_pedit_key	*tcfp_keys;
 	struct tcf_pedit_key_ex	*tcfp_keys_ex;
-	u32 tcfp_off_max_hint;
 	unsigned char tcfp_nkeys;
 	unsigned char tcfp_flags;
 	struct rcu_head rcu;
diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index 0024b1a59209..8e04caa19794 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -1745,7 +1745,7 @@ int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
 	kfree(ctx.cur_val);
 
 	if (ret == 1 && ctx.new_updated) {
-		kfree(*buf);
+		kvfree(*buf);
 		*buf = ctx.new_val;
 		*pcount = ctx.new_len;
 	} else {
diff --git a/kernel/futex/requeue.c b/kernel/futex/requeue.c
index 60b08247b07d..8cf1234be584 100644
--- a/kernel/futex/requeue.c
+++ b/kernel/futex/requeue.c
@@ -629,6 +629,12 @@ int futex_requeue(u32 __user *uaddr1, unsigned int flags, u32 __user *uaddr2,
 			continue;
 		}
 
+		/* Self-deadlock: non-top waiter already owns the PI futex. */
+		if (rt_mutex_owner(&pi_state->pi_mutex) == this->task) {
+			ret = -EDEADLK;
+			break;
+		}
+
 		ret = rt_mutex_start_proxy_lock(&pi_state->pi_mutex,
 						this->rt_waiter,
 						this->task);
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 5f8ce961cd9a..463834778b4b 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -2245,6 +2245,9 @@ static inline bool usage_match(struct lock_list *entry, void *mask)
 
 static inline bool usage_skip(struct lock_list *entry, void *mask)
 {
+	if (entry->class->lock_type == LD_LOCK_NORMAL)
+		return false;
+
 	/*
 	 * Skip local_lock() for irq inversion detection.
 	 *
@@ -2271,14 +2274,16 @@ static inline bool usage_skip(struct lock_list *entry, void *mask)
 	 * As a result, we will skip local_lock(), when we search for irq
 	 * inversion bugs.
 	 */
-	if (entry->class->lock_type == LD_LOCK_PERCPU) {
-		if (DEBUG_LOCKS_WARN_ON(entry->class->wait_type_inner < LD_WAIT_CONFIG))
-			return false;
+	if (entry->class->lock_type == LD_LOCK_PERCPU &&
+	    DEBUG_LOCKS_WARN_ON(entry->class->wait_type_inner < LD_WAIT_CONFIG))
+		return false;
 
-		return true;
-	}
+	/*
+	 * Skip WAIT_OVERRIDE for irq inversion detection -- it's not actually
+	 * a lock and only used to override the wait_type.
+	 */
 
-	return false;
+	return true;
 }
 
 /*
@@ -4745,7 +4750,8 @@ static int check_wait_context(struct task_struct *curr, struct held_lock *next)
 
 	for (; depth < curr->lockdep_depth; depth++) {
 		struct held_lock *prev = curr->held_locks + depth;
-		u8 prev_inner = hlock_class(prev)->wait_type_inner;
+		struct lock_class *class = hlock_class(prev);
+		u8 prev_inner = class->wait_type_inner;
 
 		if (prev_inner) {
 			/*
@@ -4755,6 +4761,14 @@ static int check_wait_context(struct task_struct *curr, struct held_lock *next)
 			 * Also due to trylocks.
 			 */
 			curr_inner = min(curr_inner, prev_inner);
+
+			/*
+			 * Allow override for annotations -- this is typically
+			 * only valid/needed for code that only exists when
+			 * CONFIG_PREEMPT_RT=n.
+			 */
+			if (unlikely(class->lock_type == LD_LOCK_WAIT_OVERRIDE))
+				curr_inner = prev_inner;
 		}
 	}
 
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index def1f8fbc85c..6df2f674712a 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1524,6 +1524,9 @@ static void __sched remove_waiter(struct rt_mutex_base *lock,
 
 	lockdep_assert_held(&lock->wait_lock);
 
+	if (!waiter_task) /* never enqueued */
+		return;
+
 	scoped_guard(raw_spinlock, &waiter_task->pi_lock) {
 		rt_mutex_dequeue(lock, waiter);
 		waiter_task->pi_blocked_on = NULL;
diff --git a/kernel/locking/rtmutex_api.c b/kernel/locking/rtmutex_api.c
index a6974d044593..06c3db9f6cf1 100644
--- a/kernel/locking/rtmutex_api.c
+++ b/kernel/locking/rtmutex_api.c
@@ -344,7 +344,7 @@ int __sched rt_mutex_start_proxy_lock(struct rt_mutex_base *lock,
 
 	raw_spin_lock_irq(&lock->wait_lock);
 	ret = __rt_mutex_start_proxy_lock(lock, waiter, task);
-	if (unlikely(ret))
+	if (unlikely(ret < 0))
 		remove_waiter(lock, waiter);
 	raw_spin_unlock_irq(&lock->wait_lock);
 
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index d3a31ba7c710..5edc4126d0c6 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -5082,28 +5082,20 @@ ring_buffer_consume(struct trace_buffer *buffer, int cpu, u64 *ts,
 EXPORT_SYMBOL_GPL(ring_buffer_consume);
 
 /**
- * ring_buffer_read_prepare - Prepare for a non consuming read of the buffer
+ * ring_buffer_read_start - start a non consuming read of the buffer
  * @buffer: The ring buffer to read from
  * @cpu: The cpu buffer to iterate over
  * @flags: gfp flags to use for memory allocation
  *
- * This performs the initial preparations necessary to iterate
- * through the buffer.  Memory is allocated, buffer recording
- * is disabled, and the iterator pointer is returned to the caller.
+ * This creates an iterator to allow non-consuming iteration through
+ * the buffer. If the buffer is disabled for writing, it will produce
+ * the same information each time, but if the buffer is still writing
+ * then the first hit of a write will cause the iteration to stop.
  *
- * Disabling buffer recording prevents the reading from being
- * corrupted. This is not a consuming read, so a producer is not
- * expected.
- *
- * After a sequence of ring_buffer_read_prepare calls, the user is
- * expected to make at least one call to ring_buffer_read_prepare_sync.
- * Afterwards, ring_buffer_read_start is invoked to get things going
- * for real.
- *
- * This overall must be paired with ring_buffer_read_finish.
+ * Must be paired with ring_buffer_read_finish.
  */
 struct ring_buffer_iter *
-ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags)
+ring_buffer_read_start(struct trace_buffer *buffer, int cpu, gfp_t flags)
 {
 	struct ring_buffer_per_cpu *cpu_buffer;
 	struct ring_buffer_iter *iter;
@@ -5128,51 +5120,12 @@ ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags)
 
 	atomic_inc(&cpu_buffer->resize_disabled);
 
-	return iter;
-}
-EXPORT_SYMBOL_GPL(ring_buffer_read_prepare);
-
-/**
- * ring_buffer_read_prepare_sync - Synchronize a set of prepare calls
- *
- * All previously invoked ring_buffer_read_prepare calls to prepare
- * iterators will be synchronized.  Afterwards, read_buffer_read_start
- * calls on those iterators are allowed.
- */
-void
-ring_buffer_read_prepare_sync(void)
-{
-	synchronize_rcu();
-}
-EXPORT_SYMBOL_GPL(ring_buffer_read_prepare_sync);
-
-/**
- * ring_buffer_read_start - start a non consuming read of the buffer
- * @iter: The iterator returned by ring_buffer_read_prepare
- *
- * This finalizes the startup of an iteration through the buffer.
- * The iterator comes from a call to ring_buffer_read_prepare and
- * an intervening ring_buffer_read_prepare_sync must have been
- * performed.
- *
- * Must be paired with ring_buffer_read_finish.
- */
-void
-ring_buffer_read_start(struct ring_buffer_iter *iter)
-{
-	struct ring_buffer_per_cpu *cpu_buffer;
-	unsigned long flags;
-
-	if (!iter)
-		return;
-
-	cpu_buffer = iter->cpu_buffer;
-
-	raw_spin_lock_irqsave(&cpu_buffer->reader_lock, flags);
+	guard(raw_spinlock_irqsave)(&cpu_buffer->reader_lock);
 	arch_spin_lock(&cpu_buffer->lock);
 	rb_iter_reset(iter);
 	arch_spin_unlock(&cpu_buffer->lock);
-	raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags);
+
+	return iter;
 }
 EXPORT_SYMBOL_GPL(ring_buffer_read_start);
 
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 25f31d7718c6..5ef1c79dc5c9 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4819,21 +4819,15 @@ __tracing_open(struct inode *inode, struct file *file, bool snapshot)
 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS) {
 		for_each_tracing_cpu(cpu) {
 			iter->buffer_iter[cpu] =
-				ring_buffer_read_prepare(iter->array_buffer->buffer,
-							 cpu, GFP_KERNEL);
-		}
-		ring_buffer_read_prepare_sync();
-		for_each_tracing_cpu(cpu) {
-			ring_buffer_read_start(iter->buffer_iter[cpu]);
+				ring_buffer_read_start(iter->array_buffer->buffer,
+						       cpu, GFP_KERNEL);
 			tracing_iter_reset(iter, cpu);
 		}
 	} else {
 		cpu = iter->cpu_file;
 		iter->buffer_iter[cpu] =
-			ring_buffer_read_prepare(iter->array_buffer->buffer,
-						 cpu, GFP_KERNEL);
-		ring_buffer_read_prepare_sync();
-		ring_buffer_read_start(iter->buffer_iter[cpu]);
+			ring_buffer_read_start(iter->array_buffer->buffer,
+					       cpu, GFP_KERNEL);
 		tracing_iter_reset(iter, cpu);
 	}
 
diff --git a/kernel/trace/trace_kdb.c b/kernel/trace/trace_kdb.c
index 59857a1ee44c..628c25693cef 100644
--- a/kernel/trace/trace_kdb.c
+++ b/kernel/trace/trace_kdb.c
@@ -43,17 +43,15 @@ static void ftrace_dump_buf(int skip_entries, long cpu_file)
 	if (cpu_file == RING_BUFFER_ALL_CPUS) {
 		for_each_tracing_cpu(cpu) {
 			iter.buffer_iter[cpu] =
-			ring_buffer_read_prepare(iter.array_buffer->buffer,
-						 cpu, GFP_ATOMIC);
-			ring_buffer_read_start(iter.buffer_iter[cpu]);
+			ring_buffer_read_start(iter.array_buffer->buffer,
+					       cpu, GFP_ATOMIC);
 			tracing_iter_reset(&iter, cpu);
 		}
 	} else {
 		iter.cpu_file = cpu_file;
 		iter.buffer_iter[cpu_file] =
-			ring_buffer_read_prepare(iter.array_buffer->buffer,
+			ring_buffer_read_start(iter.array_buffer->buffer,
 						 cpu_file, GFP_ATOMIC);
-		ring_buffer_read_start(iter.buffer_iter[cpu_file]);
 		tracing_iter_reset(&iter, cpu_file);
 	}
 
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index 1e193a5f6b4a..ef1fea990df7 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -597,14 +597,63 @@ static struct debug_obj *lookup_object_or_alloc(void *addr, struct debug_bucket
 	return NULL;
 }
 
-static void debug_objects_fill_pool(void)
+static inline bool debug_objects_is_pi_blocked_on(void)
+{
+#ifdef CONFIG_RT_MUTEXES
+	return current->pi_blocked_on != NULL;
+#else
+	return false;
+#endif
+}
+
+static inline bool can_fill_pool(void)
 {
 	/*
-	 * On RT enabled kernels the pool refill must happen in preemptible
-	 * context:
+	 * On !RT enabled kernels there are no restrictions and spinlock_t and
+	 * raw_spinlock_t are the same types.
 	 */
-	if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible())
+	if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+		return true;
+
+	/*
+	 * On RT enabled kernels, the task must not be blocked on a lock as
+	 * that could corrupt the PI state when blocking on a lock in the
+	 * allocation path.
+	 */
+	if (debug_objects_is_pi_blocked_on())
+		return false;
+
+	/*
+	 * On RT enabled kernels the pool refill should happen in preemptible
+	 * context.
+	 */
+	if (preemptible())
+		return true;
+
+	/*
+	 * Though during system boot before scheduling is set up, preemption is
+	 * disabled and the pool can get exhausted. Before scheduling is active
+	 * a task cannot be blocked on a sleeping lock, but it might hold a lock
+	 * and if interrupted then hard interrupt context might run into a lock
+	 * inversion. So exclude hard interrupt context from allocations before
+	 * scheduling is active.
+	 */
+	return system_state < SYSTEM_SCHEDULING && !in_hardirq();
+}
+
+static void debug_objects_fill_pool(void)
+{
+	if (can_fill_pool()) {
+		/*
+		 * Annotate away the spinlock_t inside raw_spinlock_t warning
+		 * by temporarily raising the wait-type to LD_WAIT_CONFIG, matching
+		 * the preemptible() condition in can_fill_pool().
+		 */
+		static DEFINE_WAIT_OVERRIDE_MAP(fill_pool_map, LD_WAIT_CONFIG);
+		lock_map_acquire_try(&fill_pool_map);
 		fill_pool();
+		lock_map_release(&fill_pool_map);
+	}
 }
 
 static void
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 1f7a90ecc700..f6f8c18dc45f 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -4622,6 +4622,7 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 	struct lru_gen_mm_walk *walk;
 	int young = 0;
 	unsigned long bitmap[BITS_TO_LONGS(MIN_LRU_BATCH)] = {};
+	struct vm_area_struct *vma = pvmw->vma;
 	struct folio *folio = pfn_folio(pvmw->pfn);
 	struct mem_cgroup *memcg = folio_memcg(folio);
 	struct pglist_data *pgdat = folio_pgdat(folio);
@@ -4635,11 +4636,15 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 	if (spin_is_contended(pvmw->ptl))
 		return;
 
+	/* exclude special VMAs containing anon pages from COW */
+	if (vma->vm_flags & VM_SPECIAL)
+		return;
+
 	/* avoid taking the LRU lock under the PTL when possible */
 	walk = current->reclaim_state ? current->reclaim_state->mm_walk : NULL;
 
-	start = max(pvmw->address & PMD_MASK, pvmw->vma->vm_start);
-	end = min(pvmw->address | ~PMD_MASK, pvmw->vma->vm_end - 1) + 1;
+	start = max(pvmw->address & PMD_MASK, vma->vm_start);
+	end = min(pvmw->address | ~PMD_MASK, vma->vm_end - 1) + 1;
 
 	if (end - start > MIN_LRU_BATCH * PAGE_SIZE) {
 		if (pvmw->address - start < MIN_LRU_BATCH * PAGE_SIZE / 2)
@@ -4660,7 +4665,7 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 	for (i = 0, addr = start; addr != end; i++, addr += PAGE_SIZE) {
 		unsigned long pfn;
 
-		pfn = get_pte_pfn(pte[i], pvmw->vma, addr);
+		pfn = get_pte_pfn(pte[i], vma, addr);
 		if (pfn == -1)
 			continue;
 
@@ -4671,7 +4676,7 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 		if (!folio)
 			continue;
 
-		if (!ptep_test_and_clear_young(pvmw->vma, addr, pte + i))
+		if (!ptep_test_and_clear_young(vma, addr, pte + i))
 			VM_WARN_ON_ONCE(true);
 
 		young++;
diff --git a/net/9p/client.c b/net/9p/client.c
index e89a91802e03..e36fa6f0a188 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1207,7 +1207,8 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
 
 clunk_fid:
 	kfree(wqids);
-	p9_fid_put(fid);
+	if (fid != oldfid)
+		p9_fid_put(fid);
 	fid = NULL;
 
 error:
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index c52e3b828898..7fd692b642e3 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -311,14 +311,23 @@ batadv_iv_ogm_aggr_packet(int buff_pos, int packet_len,
 			  const struct batadv_ogm_packet *ogm_packet)
 {
 	int next_buff_pos = 0;
+	u16 tvlv_len;
 
 	/* check if there is enough space for the header */
 	next_buff_pos += buff_pos + sizeof(*ogm_packet);
 	if (next_buff_pos > packet_len)
 		return false;
 
+	tvlv_len = ntohs(ogm_packet->tvlv_len);
+
+	/* the fields of an aggregated OGM are accessed assuming (at least)
+	 * 2-byte alignment, so a following OGM must start at an even offset.
+	 */
+	if (tvlv_len & 1)
+		return false;
+
 	/* check if there is enough space for the optional TVLV */
-	next_buff_pos += ntohs(ogm_packet->tvlv_len);
+	next_buff_pos += tvlv_len;
 
 	return next_buff_pos <= packet_len;
 }
diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
index 651e01b86141..34874942ae8d 100644
--- a/net/batman-adv/bat_v.c
+++ b/net/batman-adv/bat_v.c
@@ -838,6 +838,7 @@ void batadv_v_hardif_init(struct batadv_hard_iface *hard_iface)
 
 	hard_iface->bat_v.aggr_len = 0;
 	skb_queue_head_init(&hard_iface->bat_v.aggr_list);
+	hard_iface->bat_v.aggr_list_enabled = false;
 	INIT_DELAYED_WORK(&hard_iface->bat_v.aggr_wq,
 			  batadv_v_ogm_aggr_work);
 }
diff --git a/net/batman-adv/bat_v_ogm.c b/net/batman-adv/bat_v_ogm.c
index 57d0c6862f44..e8ad4817d200 100644
--- a/net/batman-adv/bat_v_ogm.c
+++ b/net/batman-adv/bat_v_ogm.c
@@ -255,11 +255,18 @@ static void batadv_v_ogm_queue_on_if(struct batadv_priv *bat_priv,
 	}
 
 	spin_lock_bh(&hard_iface->bat_v.aggr_list.lock);
+	if (!hard_iface->bat_v.aggr_list_enabled) {
+		kfree_skb(skb);
+		goto unlock;
+	}
+
 	if (!batadv_v_ogm_queue_left(skb, hard_iface))
 		batadv_v_ogm_aggr_send(bat_priv, hard_iface);
 
 	hard_iface->bat_v.aggr_len += batadv_v_ogm_len(skb);
 	__skb_queue_tail(&hard_iface->bat_v.aggr_list, skb);
+
+unlock:
 	spin_unlock_bh(&hard_iface->bat_v.aggr_list.lock);
 }
 
@@ -422,6 +429,10 @@ int batadv_v_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
 
+	spin_lock_bh(&hard_iface->bat_v.aggr_list.lock);
+	hard_iface->bat_v.aggr_list_enabled = true;
+	spin_unlock_bh(&hard_iface->bat_v.aggr_list.lock);
+
 	batadv_v_ogm_start_queue_timer(hard_iface);
 	batadv_v_ogm_start_timer(bat_priv);
 
@@ -437,6 +448,7 @@ void batadv_v_ogm_iface_disable(struct batadv_hard_iface *hard_iface)
 	cancel_delayed_work_sync(&hard_iface->bat_v.aggr_wq);
 
 	spin_lock_bh(&hard_iface->bat_v.aggr_list.lock);
+	hard_iface->bat_v.aggr_list_enabled = false;
 	batadv_v_ogm_aggr_list_free(hard_iface);
 	spin_unlock_bh(&hard_iface->bat_v.aggr_list.lock);
 }
@@ -842,14 +854,23 @@ batadv_v_ogm_aggr_packet(int buff_pos, int packet_len,
 			 const struct batadv_ogm2_packet *ogm2_packet)
 {
 	int next_buff_pos = 0;
+	u16 tvlv_len;
 
 	/* check if there is enough space for the header */
 	next_buff_pos += buff_pos + sizeof(*ogm2_packet);
 	if (next_buff_pos > packet_len)
 		return false;
 
+	tvlv_len = ntohs(ogm2_packet->tvlv_len);
+
+	/* the fields of an aggregated OGMv2 are accessed assuming (at least)
+	 * 2-byte alignment, so a following OGMv2 must start at an even offset.
+	 */
+	if (tvlv_len & 1)
+		return false;
+
 	/* check if there is enough space for the optional TVLV */
-	next_buff_pos += ntohs(ogm2_packet->tvlv_len);
+	next_buff_pos += tvlv_len;
 
 	return next_buff_pos <= packet_len;
 }
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index cfb1eb25c6ac..ac12c06f11b8 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -512,7 +512,7 @@ batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, const u8 *orig,
 		return NULL;
 
 	entry->vid = vid;
-	entry->lasttime = jiffies;
+	WRITE_ONCE(entry->lasttime, jiffies);
 	entry->crc = BATADV_BLA_CRC_INIT;
 	entry->bat_priv = bat_priv;
 	spin_lock_init(&entry->crc_lock);
@@ -580,7 +580,7 @@ batadv_bla_update_own_backbone_gw(struct batadv_priv *bat_priv,
 	if (unlikely(!backbone_gw))
 		return;
 
-	backbone_gw->lasttime = jiffies;
+	WRITE_ONCE(backbone_gw->lasttime, jiffies);
 	batadv_backbone_gw_put(backbone_gw);
 }
 
@@ -714,7 +714,7 @@ static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
 		ether_addr_copy(claim->addr, mac);
 		spin_lock_init(&claim->backbone_lock);
 		claim->vid = vid;
-		claim->lasttime = jiffies;
+		WRITE_ONCE(claim->lasttime, jiffies);
 		kref_get(&backbone_gw->refcount);
 		claim->backbone_gw = backbone_gw;
 		kref_init(&claim->refcount);
@@ -736,7 +736,7 @@ static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
 			return;
 		}
 	} else {
-		claim->lasttime = jiffies;
+		WRITE_ONCE(claim->lasttime, jiffies);
 		if (claim->backbone_gw == backbone_gw)
 			/* no need to register a new backbone */
 			goto claim_free_ref;
@@ -769,7 +769,7 @@ static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
 	spin_lock_bh(&backbone_gw->crc_lock);
 	backbone_gw->crc ^= crc16(0, claim->addr, ETH_ALEN);
 	spin_unlock_bh(&backbone_gw->crc_lock);
-	backbone_gw->lasttime = jiffies;
+	WRITE_ONCE(backbone_gw->lasttime, jiffies);
 
 claim_free_ref:
 	batadv_claim_put(claim);
@@ -858,7 +858,7 @@ static bool batadv_handle_announce(struct batadv_priv *bat_priv, u8 *an_addr,
 		return true;
 
 	/* handle as ANNOUNCE frame */
-	backbone_gw->lasttime = jiffies;
+	WRITE_ONCE(backbone_gw->lasttime, jiffies);
 	crc = ntohs(*((__force __be16 *)(&an_addr[4])));
 
 	batadv_dbg(BATADV_DBG_BLA, bat_priv,
@@ -1253,7 +1253,7 @@ static void batadv_bla_purge_backbone_gw(struct batadv_priv *bat_priv, int now)
 						  head, hash_entry) {
 				if (now)
 					goto purge_now;
-				if (!batadv_has_timed_out(backbone_gw->lasttime,
+				if (!batadv_has_timed_out(READ_ONCE(backbone_gw->lasttime),
 							  BATADV_BLA_BACKBONE_TIMEOUT))
 					continue;
 
@@ -1334,7 +1334,7 @@ static void batadv_bla_purge_claims(struct batadv_priv *bat_priv,
 						primary_if->net_dev->dev_addr))
 				goto skip;
 
-			if (!batadv_has_timed_out(claim->lasttime,
+			if (!batadv_has_timed_out(READ_ONCE(claim->lasttime),
 						  BATADV_BLA_CLAIM_TIMEOUT))
 				goto skip;
 
@@ -1494,7 +1494,7 @@ static void batadv_bla_periodic_work(struct work_struct *work)
 		eth_random_addr(bat_priv->bla.loopdetect_addr);
 		bat_priv->bla.loopdetect_addr[0] = 0xba;
 		bat_priv->bla.loopdetect_addr[1] = 0xbe;
-		bat_priv->bla.loopdetect_lasttime = jiffies;
+		WRITE_ONCE(bat_priv->bla.loopdetect_lasttime, jiffies);
 		atomic_set(&bat_priv->bla.loopdetect_next,
 			   BATADV_BLA_LOOPDETECT_PERIODS);
 
@@ -1515,7 +1515,7 @@ static void batadv_bla_periodic_work(struct work_struct *work)
 						primary_if->net_dev->dev_addr))
 				continue;
 
-			backbone_gw->lasttime = jiffies;
+			WRITE_ONCE(backbone_gw->lasttime, jiffies);
 
 			batadv_bla_send_announce(bat_priv, backbone_gw);
 			if (send_loopdetect)
@@ -1900,7 +1900,7 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
 	/* If the packet came too late, don't forward it on the mesh
 	 * but don't consider that as loop. It might be a coincidence.
 	 */
-	if (batadv_has_timed_out(bat_priv->bla.loopdetect_lasttime,
+	if (batadv_has_timed_out(READ_ONCE(bat_priv->bla.loopdetect_lasttime),
 				 BATADV_BLA_LOOPDETECT_TIMEOUT))
 		return true;
 
@@ -2016,7 +2016,7 @@ bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
 
 	if (own_claim) {
 		/* ... allow it in any case */
-		claim->lasttime = jiffies;
+		WRITE_ONCE(claim->lasttime, jiffies);
 		goto allow;
 	}
 
@@ -2118,7 +2118,7 @@ bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
 		/* if yes, the client has roamed and we have
 		 * to unclaim it.
 		 */
-		if (batadv_has_timed_out(claim->lasttime, 100)) {
+		if (batadv_has_timed_out(READ_ONCE(claim->lasttime), 100)) {
 			/* only unclaim if the last claim entry is
 			 * older than 100 ms to make sure we really
 			 * have a roaming client here.
@@ -2372,7 +2372,7 @@ batadv_bla_backbone_dump_entry(struct sk_buff *msg, u32 portid,
 	backbone_crc = backbone_gw->crc;
 	spin_unlock_bh(&backbone_gw->crc_lock);
 
-	msecs = jiffies_to_msecs(jiffies - backbone_gw->lasttime);
+	msecs = jiffies_to_msecs(jiffies - READ_ONCE(backbone_gw->lasttime));
 
 	if (is_own)
 		if (nla_put_flag(msg, BATADV_ATTR_BLA_OWN)) {
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index e8d706d86aa8..36462d9288c7 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -215,10 +215,13 @@ static void batadv_dat_purge(struct work_struct *work)
  */
 static bool batadv_compare_dat(const struct hlist_node *node, const void *data2)
 {
-	const void *data1 = container_of(node, struct batadv_dat_entry,
-					 hash_entry);
+	const struct batadv_dat_entry *entry1;
+	const struct batadv_dat_entry *entry2;
 
-	return memcmp(data1, data2, sizeof(__be32)) == 0;
+	entry1 = container_of(node, struct batadv_dat_entry, hash_entry);
+	entry2 = data2;
+
+	return entry1->ip == entry2->ip && entry1->vid == entry2->vid;
 }
 
 /**
@@ -345,6 +348,9 @@ batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip,
 		if (dat_entry->ip != ip)
 			continue;
 
+		if (dat_entry->vid != vid)
+			continue;
+
 		if (!kref_get_unless_zero(&dat_entry->refcount))
 			continue;
 
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index 4c1931940341..0138b0953e10 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -385,6 +385,8 @@ bool batadv_frag_skb_buffer(struct sk_buff **skb,
  * @skb: skb to forward
  * @recv_if: interface that the skb is received on
  * @orig_node_src: originator that the skb is received from
+ * @rx_result: set to NET_RX_SUCCESS when the fragment was forwarded and
+ *  NET_RX_DROP when it was dropped; only valid when true is returned
  *
  * Look up the next-hop of the fragments payload and check if the merged packet
  * will exceed the MTU towards the next-hop. If so, the fragment is forwarded
@@ -394,7 +396,8 @@ bool batadv_frag_skb_buffer(struct sk_buff **skb,
  */
 bool batadv_frag_skb_fwd(struct sk_buff *skb,
 			 struct batadv_hard_iface *recv_if,
-			 struct batadv_orig_node *orig_node_src)
+			 struct batadv_orig_node *orig_node_src,
+			 int *rx_result)
 {
 	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
 	struct batadv_orig_node *orig_node_dst;
@@ -417,12 +420,29 @@ bool batadv_frag_skb_fwd(struct sk_buff *skb,
 	 */
 	total_size = ntohs(packet->total_size);
 	if (total_size > neigh_node->if_incoming->net_dev->mtu) {
+		if (packet->ttl < 2) {
+			kfree_skb(skb);
+			*rx_result = NET_RX_DROP;
+			ret = true;
+			goto out;
+		}
+
+		if (skb_cow(skb, ETH_HLEN) < 0) {
+			kfree_skb(skb);
+			*rx_result = NET_RX_DROP;
+			ret = true;
+			goto out;
+		}
+
+		packet = (struct batadv_frag_packet *)skb->data;
+
 		batadv_inc_counter(bat_priv, BATADV_CNT_FRAG_FWD);
 		batadv_add_counter(bat_priv, BATADV_CNT_FRAG_FWD_BYTES,
 				   skb->len + ETH_HLEN);
 
 		packet->ttl--;
 		batadv_send_unicast_skb(skb, neigh_node);
+		*rx_result = NET_RX_SUCCESS;
 		ret = true;
 	}
 
diff --git a/net/batman-adv/fragmentation.h b/net/batman-adv/fragmentation.h
index dbf0871f8703..51e281027ab6 100644
--- a/net/batman-adv/fragmentation.h
+++ b/net/batman-adv/fragmentation.h
@@ -19,7 +19,8 @@ void batadv_frag_purge_orig(struct batadv_orig_node *orig,
 			    bool (*check_cb)(struct batadv_frag_table_entry *));
 bool batadv_frag_skb_fwd(struct sk_buff *skb,
 			 struct batadv_hard_iface *recv_if,
-			 struct batadv_orig_node *orig_node_src);
+			 struct batadv_orig_node *orig_node_src,
+			 int *rx_result);
 bool batadv_frag_skb_buffer(struct sk_buff **skb,
 			    struct batadv_orig_node *orig_node);
 int batadv_frag_send_packet(struct sk_buff *skb,
diff --git a/net/batman-adv/netlink.c b/net/batman-adv/netlink.c
index 86e0664e0511..7ff48c968a13 100644
--- a/net/batman-adv/netlink.c
+++ b/net/batman-adv/netlink.c
@@ -941,9 +941,15 @@ static int batadv_netlink_set_hardif(struct sk_buff *skb,
 #ifdef CONFIG_BATMAN_ADV_BATMAN_V
 
 	if (info->attrs[BATADV_ATTR_ELP_INTERVAL]) {
-		attr = info->attrs[BATADV_ATTR_ELP_INTERVAL];
+		u32 elp_interval;
 
-		atomic_set(&hard_iface->bat_v.elp_interval, nla_get_u32(attr));
+		attr = info->attrs[BATADV_ATTR_ELP_INTERVAL];
+		elp_interval = nla_get_u32(attr);
+
+		elp_interval = min_t(u32, elp_interval, INT_MAX);
+		elp_interval = max_t(u32, elp_interval, BATADV_JITTER);
+
+		atomic_set(&hard_iface->bat_v.elp_interval, elp_interval);
 	}
 
 	if (info->attrs[BATADV_ATTR_THROUGHPUT_OVERRIDE]) {
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 83f31494ea4d..49cce0cbdff8 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -8,6 +8,7 @@
 #include "main.h"
 
 #include <linux/atomic.h>
+#include <linux/build_bug.h>
 #include <linux/byteorder/generic.h>
 #include <linux/compiler.h>
 #include <linux/errno.h>
@@ -205,6 +206,58 @@ bool batadv_check_management_packet(struct sk_buff *skb,
 	return true;
 }
 
+/**
+ * batadv_skb_decrement_ttl() - decrement ttl in a batman-adv header, csum-safe
+ * @skb: the received packet with @skb->data pointing to the batman-adv header
+ *
+ * Supports the following packet types, all of which carry the TTL at offset 2:
+ *
+ * - batadv_ogm_packet
+ * - batadv_ogm2_packet
+ * - batadv_icmp_header
+ * - batadv_icmp_packet
+ * - batadv_icmp_tp_packet
+ * - batadv_icmp_packet_rr
+ * - batadv_unicast_packet
+ * - batadv_frag_packet
+ * - batadv_bcast_packet
+ * - batadv_mcast_packet
+ * - batadv_coded_packet
+ * - batadv_unicast_tvlv_packet
+ *
+ * Return: true if the packet may be forwarded (ttl decremented),
+ *  false if it must be dropped (ttl would expire)
+ */
+static bool batadv_skb_decrement_ttl(struct sk_buff *skb)
+{
+	static const size_t ttl_offset = 2;
+	u8 *ttl_pos;
+
+	BUILD_BUG_ON(offsetof(struct batadv_ogm_packet, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_ogm2_packet, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_icmp_header, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_icmp_tp_packet, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet_rr, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_unicast_packet, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_frag_packet, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_bcast_packet, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_coded_packet, ttl) != ttl_offset);
+	BUILD_BUG_ON(offsetof(struct batadv_unicast_tvlv_packet, ttl) != ttl_offset);
+
+	ttl_pos = skb->data + ttl_offset;
+
+	/* would expire on this hop -> drop, leave header + csum untouched */
+	if (*ttl_pos < 2)
+		return false;
+
+	skb_postpull_rcsum(skb, ttl_pos, 1);
+	(*ttl_pos)--;
+	skb_postpush_rcsum(skb, ttl_pos, 1);
+
+	return true;
+}
+
 /**
  * batadv_recv_my_icmp_packet() - receive an icmp packet locally
  * @bat_priv: the bat priv with all the soft interface information
@@ -1122,10 +1175,9 @@ int batadv_recv_frag_packet(struct sk_buff *skb,
 
 	/* Route the fragment if it is not for us and too big to be merged. */
 	if (!batadv_is_my_mac(bat_priv, frag_packet->dest) &&
-	    batadv_frag_skb_fwd(skb, recv_if, orig_node_src)) {
+	    batadv_frag_skb_fwd(skb, recv_if, orig_node_src, &ret)) {
 		/* skb was consumed */
 		skb = NULL;
-		ret = NET_RX_SUCCESS;
 		goto put_orig_node;
 	}
 
@@ -1199,7 +1251,13 @@ int batadv_recv_bcast_packet(struct sk_buff *skb,
 	if (batadv_is_my_mac(bat_priv, bcast_packet->orig))
 		goto free_skb;
 
-	if (bcast_packet->ttl-- < 2)
+	/* create a copy of the skb, if needed, to modify it. */
+	if (skb_cow(skb, ETH_HLEN) < 0)
+		goto free_skb;
+
+	bcast_packet = (struct batadv_bcast_packet *)skb->data;
+
+	if (!batadv_skb_decrement_ttl(skb))
 		goto free_skb;
 
 	orig_node = batadv_orig_hash_find(bat_priv, bcast_packet->orig);
diff --git a/net/batman-adv/tp_meter.c b/net/batman-adv/tp_meter.c
index dfc337454992..50b83e0438a0 100644
--- a/net/batman-adv/tp_meter.c
+++ b/net/batman-adv/tp_meter.c
@@ -87,6 +87,11 @@
 #define BATADV_TP_PLEN (BATADV_TP_PACKET_LEN - ETH_HLEN - \
 			sizeof(struct batadv_unicast_packet))
 
+/**
+ * BATADV_TP_MAX_UNACKED - maximum number of packets a receiver didn't yet ack
+ */
+#define BATADV_TP_MAX_UNACKED 100
+
 static u8 batadv_tp_prerandom[4096] __read_mostly;
 
 /**
@@ -154,9 +159,12 @@ static void batadv_tp_update_cwnd(struct batadv_tp_vars *tp_vars, u32 mss)
 		return;
 	}
 
+	/* prevent overflow in (mss * mss) << 3 */
+	mss = min_t(u32, mss, (1U << 14) - 1);
+
 	/* increment CWND at least of 1 (section 3.1 of RFC5681) */
 	tp_vars->dec_cwnd += max_t(u32, 1U << 3,
-				   ((mss * mss) << 6) / (tp_vars->cwnd << 3));
+				   ((mss * mss) << 3) / tp_vars->cwnd);
 	if (tp_vars->dec_cwnd < (mss << 3)) {
 		spin_unlock_bh(&tp_vars->cwnd_lock);
 		return;
@@ -730,7 +738,7 @@ static void batadv_tp_recv_ack(struct batadv_priv *bat_priv,
 		if (atomic_read(&tp_vars->dup_acks) != 3)
 			goto out;
 
-		if (recv_ack >= tp_vars->recover)
+		if (!batadv_seq_before(tp_vars->recover, recv_ack))
 			goto out;
 
 		/* if this is the third duplicate ACK do Fast Retransmit */
@@ -817,10 +825,15 @@ static void batadv_tp_recv_ack(struct batadv_priv *bat_priv,
 static bool batadv_tp_avail(struct batadv_tp_vars *tp_vars,
 			    size_t payload_len)
 {
+	u32 last_sent = READ_ONCE(tp_vars->last_sent);
 	u32 win_left, win_limit;
 
 	win_limit = atomic_read(&tp_vars->last_acked) + tp_vars->cwnd;
-	win_left = win_limit - tp_vars->last_sent;
+
+	if (batadv_seq_before(last_sent, win_limit))
+		win_left = win_limit - last_sent;
+	else
+		win_left = 0;
 
 	return win_left >= payload_len;
 }
@@ -1045,6 +1058,7 @@ void batadv_tp_start(struct batadv_priv *bat_priv, const u8 *dst,
 	tp_vars->icmp_uid = icmp_uid;
 
 	tp_vars->last_sent = BATADV_TP_FIRST_SEQ;
+	atomic_set(&tp_vars->dup_acks, 0);
 	atomic_set(&tp_vars->last_acked, BATADV_TP_FIRST_SEQ);
 	tp_vars->fast_recovery = false;
 	tp_vars->recover = BATADV_TP_FIRST_SEQ;
@@ -1054,6 +1068,8 @@ void batadv_tp_start(struct batadv_priv *bat_priv, const u8 *dst,
 	 * soft_interface, hence its MTU
 	 */
 	tp_vars->cwnd = BATADV_TP_PLEN * 3;
+	tp_vars->dec_cwnd = 0;
+
 	/* at the beginning initialise the SS threshold to the biggest possible
 	 * window size, hence the AWND size
 	 */
@@ -1085,21 +1101,21 @@ void batadv_tp_start(struct batadv_priv *bat_priv, const u8 *dst,
 	tp_vars->prerandom_offset = 0;
 	spin_lock_init(&tp_vars->prerandom_lock);
 
-	kref_get(&tp_vars->refcount);
-	hlist_add_head_rcu(&tp_vars->list, &bat_priv->tp_list);
-	spin_unlock_bh(&bat_priv->tp_list_lock);
-
 	tp_vars->test_length = test_length;
 	if (!tp_vars->test_length)
 		tp_vars->test_length = BATADV_TP_DEF_TEST_LENGTH;
 
+	/* init work item for finished tp tests */
+	INIT_DELAYED_WORK(&tp_vars->finish_work, batadv_tp_sender_finish);
+
+	kref_get(&tp_vars->refcount);
+	hlist_add_head_rcu(&tp_vars->list, &bat_priv->tp_list);
+	spin_unlock_bh(&bat_priv->tp_list_lock);
+
 	batadv_dbg(BATADV_DBG_TP_METER, bat_priv,
 		   "Meter: starting throughput meter towards %pM (length=%ums)\n",
 		   dst, test_length);
 
-	/* init work item for finished tp tests */
-	INIT_DELAYED_WORK(&tp_vars->finish_work, batadv_tp_sender_finish);
-
 	/* start tp kthread. This way the write() call issued from userspace can
 	 * happily return and avoid to block
 	 */
@@ -1167,7 +1183,7 @@ static void batadv_tp_receiver_shutdown(struct timer_list *t)
 	bat_priv = tp_vars->bat_priv;
 
 	/* if there is recent activity rearm the timer */
-	if (!batadv_has_timed_out(tp_vars->last_recv_time,
+	if (!batadv_has_timed_out(READ_ONCE(tp_vars->last_recv_time),
 				  BATADV_TP_RECV_TIMEOUT)) {
 		/* reset the receiver shutdown timer */
 		batadv_tp_reset_receiver_timer(tp_vars);
@@ -1184,6 +1200,7 @@ static void batadv_tp_receiver_shutdown(struct timer_list *t)
 	list_for_each_entry_safe(un, safe, &tp_vars->unacked_list, list) {
 		list_del(&un->list);
 		kfree(un);
+		tp_vars->unacked_count--;
 	}
 	spin_unlock_bh(&tp_vars->unacked_lock);
 
@@ -1267,7 +1284,8 @@ static int batadv_tp_send_ack(struct batadv_priv *bat_priv, const u8 *dst,
 /**
  * batadv_tp_handle_out_of_order() - store an out of order packet
  * @tp_vars: the private data of the current TP meter session
- * @skb: the buffer containing the received packet
+ * @seqno: sequence number of new received packet
+ * @payload_len: length of the received packet
  *
  * Store the out of order packet in the unacked list for late processing. This
  * packets are kept in this list so that they can be ACKed at once as soon as
@@ -1276,28 +1294,24 @@ static int batadv_tp_send_ack(struct batadv_priv *bat_priv, const u8 *dst,
  * Return: true if the packed has been successfully processed, false otherwise
  */
 static bool batadv_tp_handle_out_of_order(struct batadv_tp_vars *tp_vars,
-					  const struct sk_buff *skb)
+					  u32 seqno, u32 payload_len)
+	__must_hold(&tp_vars->unacked_lock)
 {
-	const struct batadv_icmp_tp_packet *icmp;
 	struct batadv_tp_unacked *un, *new;
-	u32 payload_len;
 	bool added = false;
 
 	new = kmalloc(sizeof(*new), GFP_ATOMIC);
 	if (unlikely(!new))
 		return false;
 
-	icmp = (struct batadv_icmp_tp_packet *)skb->data;
-
-	new->seqno = ntohl(icmp->seqno);
-	payload_len = skb->len - sizeof(struct batadv_unicast_packet);
+	new->seqno = seqno;
 	new->len = payload_len;
 
-	spin_lock_bh(&tp_vars->unacked_lock);
 	/* if the list is empty immediately attach this new object */
 	if (list_empty(&tp_vars->unacked_list)) {
 		list_add(&new->list, &tp_vars->unacked_list);
-		goto out;
+		tp_vars->unacked_count++;
+		return true;
 	}
 
 	/* otherwise loop over the list and either drop the packet because this
@@ -1325,17 +1339,26 @@ static bool batadv_tp_handle_out_of_order(struct batadv_tp_vars *tp_vars,
 		 * one is attached _after_ it. In this way the list is kept in
 		 * ascending order
 		 */
-		list_add_tail(&new->list, &un->list);
+		list_add(&new->list, &un->list);
 		added = true;
+		tp_vars->unacked_count++;
 		break;
 	}
 
 	/* received packet with smallest seqno out of order; add it to front */
-	if (!added)
+	if (!added) {
 		list_add(&new->list, &tp_vars->unacked_list);
+		tp_vars->unacked_count++;
+	}
 
-out:
-	spin_unlock_bh(&tp_vars->unacked_lock);
+	/* remove the last (biggest) unacked seqno when list is too large */
+	if (tp_vars->unacked_count > BATADV_TP_MAX_UNACKED) {
+		un = list_last_entry(&tp_vars->unacked_list,
+				     struct batadv_tp_unacked, list);
+		list_del(&un->list);
+		kfree(un);
+		tp_vars->unacked_count--;
+	}
 
 	return true;
 }
@@ -1346,6 +1369,7 @@ static bool batadv_tp_handle_out_of_order(struct batadv_tp_vars *tp_vars,
  * @tp_vars: the private data of the current TP meter session
  */
 static void batadv_tp_ack_unordered(struct batadv_tp_vars *tp_vars)
+	__must_hold(&tp_vars->unacked_lock)
 {
 	struct batadv_tp_unacked *un, *safe;
 	u32 to_ack;
@@ -1353,7 +1377,6 @@ static void batadv_tp_ack_unordered(struct batadv_tp_vars *tp_vars)
 	/* go through the unacked packet list and possibly ACK them as
 	 * well
 	 */
-	spin_lock_bh(&tp_vars->unacked_lock);
 	list_for_each_entry_safe(un, safe, &tp_vars->unacked_list, list) {
 		/* the list is ordered, therefore it is possible to stop as soon
 		 * there is a gap between the last acked seqno and the seqno of
@@ -1369,8 +1392,8 @@ static void batadv_tp_ack_unordered(struct batadv_tp_vars *tp_vars)
 
 		list_del(&un->list);
 		kfree(un);
+		tp_vars->unacked_count--;
 	}
-	spin_unlock_bh(&tp_vars->unacked_lock);
 }
 
 /**
@@ -1392,8 +1415,10 @@ batadv_tp_init_recv(struct batadv_priv *bat_priv,
 
 	tp_vars = batadv_tp_list_find_session(bat_priv, icmp->orig,
 					      icmp->session, BATADV_TP_RECEIVER);
-	if (tp_vars)
+	if (tp_vars) {
+		WRITE_ONCE(tp_vars->last_recv_time, jiffies);
 		goto out_unlock;
+	}
 
 	if (!atomic_add_unless(&bat_priv->tp_num, 1, BATADV_TP_MAX_NUM)) {
 		batadv_dbg(BATADV_DBG_TP_METER, bat_priv,
@@ -1417,13 +1442,16 @@ batadv_tp_init_recv(struct batadv_priv *bat_priv,
 
 	spin_lock_init(&tp_vars->unacked_lock);
 	INIT_LIST_HEAD(&tp_vars->unacked_list);
-
-	kref_get(&tp_vars->refcount);
-	hlist_add_head_rcu(&tp_vars->list, &bat_priv->tp_list);
+	tp_vars->unacked_count = 0;
 
 	kref_get(&tp_vars->refcount);
 	timer_setup(&tp_vars->timer, batadv_tp_receiver_shutdown, 0);
 
+	WRITE_ONCE(tp_vars->last_recv_time, jiffies);
+
+	kref_get(&tp_vars->refcount);
+	hlist_add_head_rcu(&tp_vars->list, &bat_priv->tp_list);
+
 	batadv_tp_reset_receiver_timer(tp_vars);
 
 out_unlock:
@@ -1444,7 +1472,8 @@ static void batadv_tp_recv_msg(struct batadv_priv *bat_priv,
 {
 	const struct batadv_icmp_tp_packet *icmp;
 	struct batadv_tp_vars *tp_vars;
-	size_t packet_size;
+	u32 payload_len;
+	u32 to_ack;
 	u32 seqno;
 
 	icmp = (struct batadv_icmp_tp_packet *)skb->data;
@@ -1469,41 +1498,49 @@ static void batadv_tp_recv_msg(struct batadv_priv *bat_priv,
 				   icmp->orig);
 			goto out;
 		}
+
+		WRITE_ONCE(tp_vars->last_recv_time, jiffies);
 	}
 
-	tp_vars->last_recv_time = jiffies;
+	spin_lock_bh(&tp_vars->unacked_lock);
 
 	/* if the packet is a duplicate, it may be the case that an ACK has been
 	 * lost. Resend the ACK
 	 */
-	if (batadv_seq_before(seqno, tp_vars->last_recv))
+	payload_len = skb->len - sizeof(struct batadv_unicast_packet);
+	to_ack = seqno + payload_len;
+	if (batadv_seq_before(to_ack, tp_vars->last_recv))
 		goto send_ack;
 
 	/* if the packet is out of order enqueue it */
-	if (ntohl(icmp->seqno) != tp_vars->last_recv) {
+	if (batadv_seq_before(tp_vars->last_recv, seqno)) {
 		/* exit immediately (and do not send any ACK) if the packet has
 		 * not been enqueued correctly
 		 */
-		if (!batadv_tp_handle_out_of_order(tp_vars, skb))
+		if (!batadv_tp_handle_out_of_order(tp_vars, seqno, payload_len)) {
+			spin_unlock_bh(&tp_vars->unacked_lock);
 			goto out;
+		}
 
 		/* send a duplicate ACK */
 		goto send_ack;
 	}
 
 	/* if everything was fine count the ACKed bytes */
-	packet_size = skb->len - sizeof(struct batadv_unicast_packet);
-	tp_vars->last_recv += packet_size;
+	tp_vars->last_recv = to_ack;
 
 	/* check if this ordered message filled a gap.... */
 	batadv_tp_ack_unordered(tp_vars);
 
 send_ack:
+	to_ack = tp_vars->last_recv;
+	spin_unlock_bh(&tp_vars->unacked_lock);
+
 	/* send the ACK. If the received packet was out of order, the ACK that
 	 * is going to be sent is a duplicate (the sender will count them and
 	 * possibly enter Fast Retransmit as soon as it has reached 3)
 	 */
-	batadv_tp_send_ack(bat_priv, icmp->orig, tp_vars->last_recv,
+	batadv_tp_send_ack(bat_priv, icmp->orig, to_ack,
 			   icmp->timestamp, icmp->session, icmp->uid);
 out:
 	batadv_tp_vars_put(tp_vars);
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index e0503c8f24c3..5161ddf1c788 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -485,6 +485,9 @@ static void batadv_tt_local_event(struct batadv_priv *bat_priv,
 		if (!batadv_compare_eth(entry->change.addr, common->addr))
 			continue;
 
+		if (entry->change.vid != tt_change_node->change.vid)
+			continue;
+
 		/* DEL+ADD in the same orig interval have no effect and can be
 		 * removed to avoid silly behaviour on the receiver side. The
 		 * other way around (ADD+DEL) can happen in case of roaming of
@@ -850,11 +853,18 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node,
 	u16 total_entries = 0;
 	u8 *tt_change_ptr;
 	int vlan_entries;
+	u16 sum_entries;
 
 	spin_lock_bh(&orig_node->vlan_list_lock);
 	hlist_for_each_entry(vlan, &orig_node->vlan_list, list) {
 		vlan_entries = atomic_read(&vlan->tt.num_entries);
-		total_entries += vlan_entries;
+
+		if (check_add_overflow(vlan_entries, total_entries, &sum_entries)) {
+			*tt_len = 0;
+			goto out;
+		}
+
+		total_entries = sum_entries;
 		num_vlan++;
 	}
 
@@ -941,15 +951,22 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv,
 	struct batadv_softif_vlan *vlan;
 	size_t change_offset;
 	u16 num_vlan = 0;
-	u16 vlan_entries = 0;
 	u16 total_entries = 0;
 	u16 tvlv_len;
 	u8 *tt_change_ptr;
+	int vlan_entries;
+	u16 sum_entries;
 
 	spin_lock_bh(&bat_priv->softif_vlan_list_lock);
 	hlist_for_each_entry(vlan, &bat_priv->softif_vlan_list, list) {
 		vlan_entries = atomic_read(&vlan->tt.num_entries);
-		total_entries += vlan_entries;
+
+		if (check_add_overflow(vlan_entries, total_entries, &sum_entries)) {
+			tvlv_len = 0;
+			goto out;
+		}
+
+		total_entries = sum_entries;
 		num_vlan++;
 	}
 
@@ -3500,6 +3517,7 @@ static void batadv_tt_roam_purge(struct batadv_priv *bat_priv)
  * batadv_tt_check_roam_count() - check if a client has roamed too frequently
  * @bat_priv: the bat priv with all the soft interface information
  * @client: mac address of the roaming client
+ * @vid: VLAN identifier
  *
  * This function checks whether the client already reached the
  * maximum number of possible roaming phases. In this case the ROAMING_ADV
@@ -3507,7 +3525,7 @@ static void batadv_tt_roam_purge(struct batadv_priv *bat_priv)
  *
  * Return: true if the ROAMING_ADV can be sent, false otherwise
  */
-static bool batadv_tt_check_roam_count(struct batadv_priv *bat_priv, u8 *client)
+static bool batadv_tt_check_roam_count(struct batadv_priv *bat_priv, u8 *client, u16 vid)
 {
 	struct batadv_tt_roam_node *tt_roam_node;
 	bool ret = false;
@@ -3520,6 +3538,9 @@ static bool batadv_tt_check_roam_count(struct batadv_priv *bat_priv, u8 *client)
 		if (!batadv_compare_eth(tt_roam_node->addr, client))
 			continue;
 
+		if (tt_roam_node->vid != vid)
+			continue;
+
 		if (batadv_has_timed_out(tt_roam_node->first_time,
 					 BATADV_ROAMING_MAX_TIME))
 			continue;
@@ -3541,6 +3562,7 @@ static bool batadv_tt_check_roam_count(struct batadv_priv *bat_priv, u8 *client)
 		atomic_set(&tt_roam_node->counter,
 			   BATADV_ROAMING_MAX_COUNT - 1);
 		ether_addr_copy(tt_roam_node->addr, client);
+		tt_roam_node->vid = vid;
 
 		list_add(&tt_roam_node->list, &bat_priv->tt.roam_list);
 		ret = true;
@@ -3577,7 +3599,7 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, u8 *client,
 	/* before going on we have to check whether the client has
 	 * already roamed to us too many times
 	 */
-	if (!batadv_tt_check_roam_count(bat_priv, client))
+	if (!batadv_tt_check_roam_count(bat_priv, client, vid))
 		goto out;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
diff --git a/net/batman-adv/tvlv.c b/net/batman-adv/tvlv.c
index 99e5e8518dcc..61a1e5e5f0d9 100644
--- a/net/batman-adv/tvlv.c
+++ b/net/batman-adv/tvlv.c
@@ -394,7 +394,6 @@ static int batadv_tvlv_call_handler(struct batadv_priv *bat_priv,
 		tvlv_handler->ogm_handler(bat_priv, orig_node,
 					  BATADV_NO_FLAGS,
 					  tvlv_value, tvlv_value_len);
-		tvlv_handler->flags |= BATADV_TVLV_HANDLER_OGM_CALLED;
 	} else {
 		if (!src)
 			return NET_RX_SUCCESS;
@@ -413,6 +412,48 @@ static int batadv_tvlv_call_handler(struct batadv_priv *bat_priv,
 	return NET_RX_SUCCESS;
 }
 
+/**
+ * batadv_tvlv_containers_contain() - check if a tvlv buffer holds a container
+ * @tvlv_value: tvlv content
+ * @tvlv_value_len: tvlv content length
+ * @type: tvlv container type to look for
+ * @version: tvlv container version to look for
+ *
+ * Return: true if a container of the given type and version is present in the
+ * tvlv buffer, false otherwise.
+ */
+static bool batadv_tvlv_containers_contain(void *tvlv_value,
+					   u16 tvlv_value_len, u8 type,
+					   u8 version)
+{
+	struct batadv_tvlv_hdr *tvlv_hdr;
+	u16 tvlv_value_cont_len;
+
+	while (tvlv_value_len >= sizeof(*tvlv_hdr)) {
+		tvlv_hdr = tvlv_value;
+		tvlv_value_cont_len = ntohs(tvlv_hdr->len);
+		tvlv_value = tvlv_hdr + 1;
+		tvlv_value_len -= sizeof(*tvlv_hdr);
+
+		if (tvlv_value_cont_len > tvlv_value_len)
+			break;
+
+		/* the next tvlv header is accessed assuming (at least) 2-byte
+		 * alignment, so it must start at an even offset.
+		 */
+		if (tvlv_value_cont_len & 1)
+			break;
+
+		if (tvlv_hdr->type == type && tvlv_hdr->version == version)
+			return true;
+
+		tvlv_value = (u8 *)tvlv_value + tvlv_value_cont_len;
+		tvlv_value_len -= tvlv_value_cont_len;
+	}
+
+	return false;
+}
+
 /**
  * batadv_tvlv_containers_process() - parse the given tvlv buffer to call the
  *  appropriate handlers
@@ -433,7 +474,9 @@ int batadv_tvlv_containers_process(struct batadv_priv *bat_priv,
 				   u8 *src, u8 *dst,
 				   void *tvlv_value, u16 tvlv_value_len)
 {
+	u16 tvlv_value_start_len = tvlv_value_len;
 	struct batadv_tvlv_handler *tvlv_handler;
+	void *tvlv_value_start = tvlv_value;
 	struct batadv_tvlv_hdr *tvlv_hdr;
 	u16 tvlv_value_cont_len;
 	u8 cifnotfound = BATADV_TVLV_HANDLER_OGM_CIFNOTFND;
@@ -448,6 +491,12 @@ int batadv_tvlv_containers_process(struct batadv_priv *bat_priv,
 		if (tvlv_value_cont_len > tvlv_value_len)
 			break;
 
+		/* the next tvlv header is accessed assuming (at least) 2-byte
+		 * alignment, so it must start at an even offset.
+		 */
+		if (tvlv_value_cont_len & 1)
+			break;
+
 		tvlv_handler = batadv_tvlv_handler_get(bat_priv,
 						       tvlv_hdr->type,
 						       tvlv_hdr->version);
@@ -467,12 +516,20 @@ int batadv_tvlv_containers_process(struct batadv_priv *bat_priv,
 	rcu_read_lock();
 	hlist_for_each_entry_rcu(tvlv_handler,
 				 &bat_priv->tvlv.handler_list, list) {
-		if ((tvlv_handler->flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND) &&
-		    !(tvlv_handler->flags & BATADV_TVLV_HANDLER_OGM_CALLED))
-			tvlv_handler->ogm_handler(bat_priv, orig_node,
-						  cifnotfound, NULL, 0);
+		if (!(tvlv_handler->flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND))
+			continue;
 
-		tvlv_handler->flags &= ~BATADV_TVLV_HANDLER_OGM_CALLED;
+		/* if the corresponding container was present then the handler
+		 * was already called from the loop above
+		 */
+		if (batadv_tvlv_containers_contain(tvlv_value_start,
+						   tvlv_value_start_len,
+						   tvlv_handler->type,
+						   tvlv_handler->version))
+			continue;
+
+		tvlv_handler->ogm_handler(bat_priv, orig_node,
+					  cifnotfound, NULL, 0);
 	}
 	rcu_read_unlock();
 
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index ca1c258faa09..f009b2a381a4 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -130,6 +130,12 @@ struct batadv_hard_iface_bat_v {
 	/** @aggr_list: queue for to be aggregated OGM packets */
 	struct sk_buff_head aggr_list;
 
+	/**
+	 * @aggr_list_enabled: aggr_list is active and new skbs can be
+	 * enqueued. Protected by aggr_list.lock after initialization
+	 */
+	bool aggr_list_enabled:1;
+
 	/** @aggr_len: size of the OGM aggregate (excluding ethernet header) */
 	unsigned int aggr_len;
 
@@ -1485,9 +1491,12 @@ struct batadv_tp_vars {
 	/** @unacked_list: list of unacked packets (meta-info only) */
 	struct list_head unacked_list;
 
-	/** @unacked_lock: protect unacked_list */
+	/** @unacked_lock: protect unacked_list + &batadv_tp_receiver.last_recv */
 	spinlock_t unacked_lock;
 
+	/** @unacked_count: number of unacked entries */
+	size_t unacked_count;
+
 	/** @last_recv_time: time (jiffies) a msg was received */
 	unsigned long last_recv_time;
 
@@ -1986,6 +1995,9 @@ struct batadv_tt_roam_node {
 	/** @addr: mac address of the client in the roaming phase */
 	u8 addr[ETH_ALEN];
 
+	/** @vid: VLAN identifier */
+	u16 vid;
+
 	/**
 	 * @counter: number of allowed roaming events per client within a single
 	 * OGM interval (changes are committed with each OGM)
@@ -2396,13 +2408,6 @@ enum batadv_tvlv_handler_flags {
 	 *  will call this handler even if its type was not found (with no data)
 	 */
 	BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1),
-
-	/**
-	 * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the
-	 *  API marks a handler as being called, so it won't be called if the
-	 *  BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set
-	 */
-	BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2),
 };
 
 #endif /* _NET_BATMAN_ADV_TYPES_H_ */
diff --git a/net/core/filter.c b/net/core/filter.c
index 3628ea596050..7f65131e2489 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2714,11 +2714,13 @@ BPF_CALL_4(bpf_msg_pull_data, struct sk_msg *, msg, u32, start,
 		poffset += len;
 		sge->length = 0;
 		put_page(sg_page(sge));
+		__clear_bit(i, msg->sg.copy);
 
 		sk_msg_iter_var_next(i);
 	} while (i != last_sge);
 
 	sg_set_page(&msg->sg.data[first_sge], page, copy, 0);
+	__clear_bit(first_sge, msg->sg.copy);
 
 	/* To repair sg ring we need to shift entries. If we only
 	 * had a single entry though we can just replace it and
@@ -2744,9 +2746,11 @@ BPF_CALL_4(bpf_msg_pull_data, struct sk_msg *, msg, u32, start,
 			break;
 
 		msg->sg.data[i] = msg->sg.data[move_from];
+		sk_msg_sg_copy_assign(msg, i, msg, move_from);
 		msg->sg.data[move_from].length = 0;
 		msg->sg.data[move_from].page_link = 0;
 		msg->sg.data[move_from].offset = 0;
+		__clear_bit(move_from, msg->sg.copy);
 		sk_msg_iter_var_next(i);
 	} while (1);
 
@@ -2775,6 +2779,7 @@ BPF_CALL_4(bpf_msg_push_data, struct sk_msg *, msg, u32, start,
 {
 	struct scatterlist sge, nsge, nnsge, rsge = {0}, *psge;
 	u32 new, i = 0, l = 0, space, copy = 0, offset = 0;
+	bool sge_copy, nsge_copy, nnsge_copy, rsge_copy = false;
 	u8 *raw, *to, *from;
 	struct page *page;
 
@@ -2847,6 +2852,7 @@ BPF_CALL_4(bpf_msg_push_data, struct sk_msg *, msg, u32, start,
 			sk_msg_iter_var_prev(i);
 		psge = sk_msg_elem(msg, i);
 		rsge = sk_msg_elem_cpy(msg, i);
+		rsge_copy = test_bit(i, msg->sg.copy);
 
 		psge->length = start - offset;
 		rsge.length -= psge->length;
@@ -2871,24 +2877,32 @@ BPF_CALL_4(bpf_msg_push_data, struct sk_msg *, msg, u32, start,
 
 	/* Shift one or two slots as needed */
 	sge = sk_msg_elem_cpy(msg, new);
+	sge_copy = test_bit(new, msg->sg.copy);
 	sg_unmark_end(&sge);
 
 	nsge = sk_msg_elem_cpy(msg, i);
+	nsge_copy = test_bit(i, msg->sg.copy);
 	if (rsge.length) {
 		sk_msg_iter_var_next(i);
 		nnsge = sk_msg_elem_cpy(msg, i);
+		nnsge_copy = test_bit(i, msg->sg.copy);
 		sk_msg_iter_next(msg, end);
 	}
 
 	while (i != msg->sg.end) {
 		msg->sg.data[i] = sge;
+		__assign_bit(i, msg->sg.copy, sge_copy);
 		sge = nsge;
+		sge_copy = nsge_copy;
 		sk_msg_iter_var_next(i);
 		if (rsge.length) {
 			nsge = nnsge;
+			nsge_copy = nnsge_copy;
 			nnsge = sk_msg_elem_cpy(msg, i);
+			nnsge_copy = test_bit(i, msg->sg.copy);
 		} else {
 			nsge = sk_msg_elem_cpy(msg, i);
+			nsge_copy = test_bit(i, msg->sg.copy);
 		}
 	}
 
@@ -2902,6 +2916,7 @@ BPF_CALL_4(bpf_msg_push_data, struct sk_msg *, msg, u32, start,
 		get_page(sg_page(&rsge));
 		sk_msg_iter_var_next(new);
 		msg->sg.data[new] = rsge;
+		__assign_bit(new, msg->sg.copy, rsge_copy);
 	}
 
 	sk_msg_reset_curr(msg);
@@ -2929,25 +2944,33 @@ static void sk_msg_shift_left(struct sk_msg *msg, int i)
 		prev = i;
 		sk_msg_iter_var_next(i);
 		msg->sg.data[prev] = msg->sg.data[i];
+		sk_msg_sg_copy_assign(msg, prev, msg, i);
 	} while (i != msg->sg.end);
 
 	sk_msg_iter_prev(msg, end);
+	__clear_bit(msg->sg.end, msg->sg.copy);
 }
 
 static void sk_msg_shift_right(struct sk_msg *msg, int i)
 {
 	struct scatterlist tmp, sge;
+	bool tmp_copy, sge_copy;
 
 	sk_msg_iter_next(msg, end);
 	sge = sk_msg_elem_cpy(msg, i);
+	sge_copy = test_bit(i, msg->sg.copy);
 	sk_msg_iter_var_next(i);
 	tmp = sk_msg_elem_cpy(msg, i);
+	tmp_copy = test_bit(i, msg->sg.copy);
 
 	while (i != msg->sg.end) {
 		msg->sg.data[i] = sge;
+		__assign_bit(i, msg->sg.copy, sge_copy);
 		sk_msg_iter_var_next(i);
 		sge = tmp;
+		sge_copy = tmp_copy;
 		tmp = sk_msg_elem_cpy(msg, i);
+		tmp_copy = test_bit(i, msg->sg.copy);
 	}
 }
 
@@ -3007,6 +3030,8 @@ BPF_CALL_4(bpf_msg_pop_data, struct sk_msg *, msg, u32, start,
 		struct scatterlist *nsge, *sge = sk_msg_elem(msg, i);
 		int a = start - offset;
 		int b = sge->length - pop - a;
+		u32 sge_i = i;
+		bool sge_copy = test_bit(i, msg->sg.copy);
 
 		sk_msg_iter_var_next(i);
 
@@ -3019,6 +3044,7 @@ BPF_CALL_4(bpf_msg_pop_data, struct sk_msg *, msg, u32, start,
 				sg_set_page(nsge,
 					    sg_page(sge),
 					    b, sge->offset + pop + a);
+				__assign_bit(i, msg->sg.copy, sge_copy);
 			} else {
 				struct page *page, *orig;
 				u8 *to, *from;
@@ -3035,6 +3061,7 @@ BPF_CALL_4(bpf_msg_pop_data, struct sk_msg *, msg, u32, start,
 				memcpy(to, from, a);
 				memcpy(to + a, from + a + pop, b);
 				sg_set_page(sge, page, a + b, 0);
+				__clear_bit(sge_i, msg->sg.copy);
 				put_page(orig);
 			}
 			pop = 0;
diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 444b9b25ade2..11bc309811d3 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -65,6 +65,7 @@ int sk_msg_alloc(struct sock *sk, struct sk_msg *msg, int len,
 			sge = &msg->sg.data[msg->sg.end];
 			sg_unmark_end(sge);
 			sg_set_page(sge, pfrag->page, use, orig_offset);
+			__clear_bit(msg->sg.end, msg->sg.copy);
 			get_page(pfrag->page);
 			sk_msg_iter_next(msg, end);
 		}
@@ -185,6 +186,7 @@ static int sk_msg_free_elem(struct sock *sk, struct sk_msg *msg, u32 i,
 			sk_mem_uncharge(sk, len);
 		put_page(sg_page(sge));
 	}
+	__clear_bit(i, msg->sg.copy);
 	memset(sge, 0, sizeof(*sge));
 	return len;
 }
@@ -1198,8 +1200,8 @@ void sk_psock_start_strp(struct sock *sk, struct sk_psock *psock)
 		return;
 
 	psock->saved_data_ready = sk->sk_data_ready;
-	sk->sk_data_ready = sk_psock_strp_data_ready;
-	sk->sk_write_space = sk_psock_write_space;
+	WRITE_ONCE(sk->sk_data_ready, sk_psock_strp_data_ready);
+	WRITE_ONCE(sk->sk_write_space, sk_psock_write_space);
 }
 
 void sk_psock_stop_strp(struct sock *sk, struct sk_psock *psock)
@@ -1209,8 +1211,8 @@ void sk_psock_stop_strp(struct sock *sk, struct sk_psock *psock)
 	if (!psock->saved_data_ready)
 		return;
 
-	sk->sk_data_ready = psock->saved_data_ready;
-	psock->saved_data_ready = NULL;
+	WRITE_ONCE(sk->sk_data_ready, psock->saved_data_ready);
+	WRITE_ONCE(psock->saved_data_ready, NULL);
 	strp_stop(&psock->strp);
 }
 
@@ -1283,8 +1285,8 @@ void sk_psock_start_verdict(struct sock *sk, struct sk_psock *psock)
 		return;
 
 	psock->saved_data_ready = sk->sk_data_ready;
-	sk->sk_data_ready = sk_psock_verdict_data_ready;
-	sk->sk_write_space = sk_psock_write_space;
+	WRITE_ONCE(sk->sk_data_ready, sk_psock_verdict_data_ready);
+	WRITE_ONCE(sk->sk_write_space, sk_psock_write_space);
 }
 
 void sk_psock_stop_verdict(struct sock *sk, struct sk_psock *psock)
@@ -1295,6 +1297,6 @@ void sk_psock_stop_verdict(struct sock *sk, struct sk_psock *psock)
 	if (!psock->saved_data_ready)
 		return;
 
-	sk->sk_data_ready = psock->saved_data_ready;
+	WRITE_ONCE(sk->sk_data_ready, psock->saved_data_ready);
 	psock->saved_data_ready = NULL;
 }
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 076aa73c99fa..82d6c01c7885 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1479,7 +1479,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
 	err = sk_stream_error(sk, flags, err);
 	/* make sure we wake any epoll edge trigger waiter */
 	if (unlikely(tcp_rtx_and_write_queues_empty(sk) && err == -EAGAIN)) {
-		sk->sk_write_space(sk);
+		READ_ONCE(sk->sk_write_space)(sk);
 		tcp_chrono_stop(sk, TCP_CHRONO_SNDBUF_LIMITED);
 	}
 	return err;
@@ -3844,7 +3844,7 @@ int do_tcp_setsockopt(struct sock *sk, int level, int optname,
 		break;
 	case TCP_NOTSENT_LOWAT:
 		WRITE_ONCE(tp->notsent_lowat, val);
-		sk->sk_write_space(sk);
+		READ_ONCE(sk->sk_write_space)(sk);
 		break;
 	case TCP_INQ:
 		if (val > 1 || val < 0)
diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 8e6c0737bfe1..9af7595bf8c4 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -750,7 +750,7 @@ int tcp_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore)
 			WRITE_ONCE(sk->sk_prot->unhash, psock->saved_unhash);
 			tcp_update_ulp(sk, psock->sk_proto, psock->saved_write_space);
 		} else {
-			sk->sk_write_space = psock->saved_write_space;
+			WRITE_ONCE(sk->sk_write_space, psock->saved_write_space);
 			/* Pairs with lockless read in sk_clone_lock() */
 			sock_replace_proto(sk, psock->sk_proto);
 		}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 645ff379c425..91b019df7ddf 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4898,7 +4898,7 @@ static void tcp_data_queue_ofo(struct sock *sk, struct sk_buff *skb)
 
 	if (unlikely(tcp_try_rmem_schedule(sk, skb, skb->truesize))) {
 		NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPOFODROP);
-		sk->sk_data_ready(sk);
+		READ_ONCE(sk->sk_data_ready)(sk);
 		tcp_drop_reason(sk, skb, SKB_DROP_REASON_PROTO_MEM);
 		return;
 	}
@@ -5104,7 +5104,7 @@ int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size)
 void tcp_data_ready(struct sock *sk)
 {
 	if (tcp_epollin_ready(sk, sk->sk_rcvlowat) || sock_flag(sk, SOCK_DONE))
-		sk->sk_data_ready(sk);
+		READ_ONCE(sk->sk_data_ready)(sk);
 }
 
 static void tcp_data_queue(struct sock *sk, struct sk_buff *skb)
@@ -5150,7 +5150,7 @@ static void tcp_data_queue(struct sock *sk, struct sk_buff *skb)
 		else if (tcp_try_rmem_schedule(sk, skb, skb->truesize)) {
 			reason = SKB_DROP_REASON_PROTO_MEM;
 			NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPRCVQDROP);
-			sk->sk_data_ready(sk);
+			READ_ONCE(sk->sk_data_ready)(sk);
 			goto drop;
 		}
 
@@ -5570,7 +5570,9 @@ static void tcp_new_space(struct sock *sk)
 		tp->snd_cwnd_stamp = tcp_jiffies32;
 	}
 
-	INDIRECT_CALL_1(sk->sk_write_space, sk_stream_write_space, sk);
+	INDIRECT_CALL_1(READ_ONCE(sk->sk_write_space),
+			sk_stream_write_space,
+			sk);
 }
 
 /* Caller made space either from:
@@ -5768,7 +5770,7 @@ static void tcp_urg(struct sock *sk, struct sk_buff *skb, const struct tcphdr *t
 				BUG();
 			WRITE_ONCE(tp->urg_data, TCP_URG_VALID | tmp);
 			if (!sock_flag(sk, SOCK_DEAD))
-				sk->sk_data_ready(sk);
+				READ_ONCE(sk->sk_data_ready)(sk);
 		}
 	}
 }
@@ -7133,7 +7135,7 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops,
 			sock_put(fastopen_sk);
 			goto drop_and_free;
 		}
-		sk->sk_data_ready(sk);
+		READ_ONCE(sk->sk_data_ready)(sk);
 		bh_unlock_sock(fastopen_sk);
 		sock_put(fastopen_sk);
 	} else {
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 0b934b6ebb55..22b5748a6ee2 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -858,7 +858,7 @@ int tcp_child_process(struct sock *parent, struct sock *child,
 		ret = tcp_rcv_state_process(child, skb);
 		/* Wakeup parent, send SIGIO */
 		if (state == TCP_SYN_RECV && child->sk_state != state)
-			parent->sk_data_ready(parent);
+			READ_ONCE(parent->sk_data_ready)(parent);
 	} else {
 		/* Alas, it is possible again, because we do lookup
 		 * in main socket hash table and lock on listening
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index a8bfab80d66a..d1714aaedf17 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1580,7 +1580,7 @@ int __udp_enqueue_schedule_skb(struct sock *sk, struct sk_buff *skb)
 	spin_unlock(&list->lock);
 
 	if (!sock_flag(sk, SOCK_DEAD))
-		sk->sk_data_ready(sk);
+		READ_ONCE(sk->sk_data_ready)(sk);
 
 	busylock_release(busy);
 	return 0;
diff --git a/net/ipv4/udp_bpf.c b/net/ipv4/udp_bpf.c
index 0735d820e413..44271ba1adec 100644
--- a/net/ipv4/udp_bpf.c
+++ b/net/ipv4/udp_bpf.c
@@ -143,7 +143,7 @@ int udp_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore)
 	int family = sk->sk_family == AF_INET ? UDP_BPF_IPV4 : UDP_BPF_IPV6;
 
 	if (restore) {
-		sk->sk_write_space = psock->saved_write_space;
+		WRITE_ONCE(sk->sk_write_space, psock->saved_write_space);
 		sock_replace_proto(sk, psock->sk_proto);
 		return 0;
 	}
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 1e491fa7793a..d8ce708fcb3c 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1622,8 +1622,8 @@ static int __ip6_append_data(struct sock *sk,
 				  !(rt->dst.dev->features & NETIF_F_SG)))
 				alloclen = fraglen;
 			else {
-				alloclen = fragheaderlen + transhdrlen;
-				pagedlen = datalen - transhdrlen;
+				alloclen = fragheaderlen + transhdrlen + fraggap;
+				pagedlen = datalen - transhdrlen - fraggap;
 			}
 			alloclen += alloc_extra;
 
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 8808067df516..aa37ce710cf4 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -1168,6 +1168,7 @@ static int __net_init vti6_init_net(struct net *net)
 		goto err_alloc_dev;
 	dev_net_set(ip6n->fb_tnl_dev, net);
 	ip6n->fb_tnl_dev->rtnl_link_ops = &vti6_link_ops;
+	ip6n->fb_tnl_dev->features |= NETIF_F_NETNS_LOCAL;
 
 	err = vti6_fb_tnl_dev_init(ip6n->fb_tnl_dev);
 	if (err < 0)
diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c
index a4cc9d077c59..af6a7e39b7b7 100644
--- a/net/mac802154/llsec.c
+++ b/net/mac802154/llsec.c
@@ -710,6 +710,7 @@ int mac802154_llsec_encrypt(struct mac802154_llsec *sec, struct sk_buff *skb)
 {
 	struct ieee802154_hdr hdr;
 	int rc, authlen, hlen;
+	struct sk_buff *trailer;
 	struct mac802154_llsec_key *key;
 	u32 frame_ctr;
 
@@ -766,6 +767,12 @@ int mac802154_llsec_encrypt(struct mac802154_llsec *sec, struct sk_buff *skb)
 	skb->mac_len = ieee802154_hdr_push(skb, &hdr);
 	skb_reset_mac_header(skb);
 
+	rc = skb_cow_data(skb, 0, &trailer);
+	if (rc < 0) {
+		llsec_key_put(key);
+		return rc;
+	}
+
 	rc = llsec_do_encrypt(skb, sec, &hdr, key);
 	llsec_key_put(key);
 
@@ -905,6 +912,13 @@ llsec_do_decrypt(struct sk_buff *skb, const struct mac802154_llsec *sec,
 		 const struct ieee802154_hdr *hdr,
 		 struct mac802154_llsec_key *key, __le64 dev_addr)
 {
+	struct sk_buff *trailer;
+	int err;
+
+	err = skb_cow_data(skb, 0, &trailer);
+	if (err < 0)
+		return err;
+
 	if (hdr->sec.level == IEEE802154_SCF_SECLEVEL_ENC)
 		return llsec_do_decrypt_unauth(skb, sec, hdr, key, dev_addr);
 	else
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c
index 9016f8900c19..5260a34a617e 100644
--- a/net/mptcp/pm_userspace.c
+++ b/net/mptcp/pm_userspace.c
@@ -410,18 +410,21 @@ int mptcp_nl_cmd_sf_create(struct sk_buff *skb, struct genl_info *info)
 		goto create_err;
 	}
 
+	spin_lock_bh(&msk->pm.lock);
+	msk->pm.subflows++;
+	spin_unlock_bh(&msk->pm.lock);
+
 	lock_sock(sk);
 
 	err = __mptcp_subflow_connect(sk, &addr_l, &addr_r);
 
 	release_sock(sk);
 
-	spin_lock_bh(&msk->pm.lock);
-	if (err)
+	if (err) {
+		spin_lock_bh(&msk->pm.lock);
 		mptcp_userspace_pm_delete_local_addr(msk, &local);
-	else
-		msk->pm.subflows++;
-	spin_unlock_bh(&msk->pm.lock);
+		spin_unlock_bh(&msk->pm.lock);
+	}
 
  create_err:
 	sock_put((struct sock *)msk);
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index c3fd4dd6df4b..0655e1c438ab 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2197,8 +2197,10 @@ static bool __mptcp_move_skbs(struct mptcp_sock *msk)
 		__mptcp_splice_receive_queue(sk);
 		mptcp_data_unlock(sk);
 	}
-	if (ret)
+	if (ret) {
 		mptcp_check_data_fin((struct sock *)msk);
+		sk->sk_data_ready(sk);
+	}
 	return !skb_queue_empty(&msk->receive_queue);
 }
 
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 201e2cc04539..a8904f73c597 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -627,7 +627,6 @@ static void nft_map_catchall_deactivate(const struct nft_ctx *ctx,
 		elem.priv = catchall->elem;
 		nft_set_elem_change_active(ctx->net, set, ext);
 		nft_setelem_data_deactivate(ctx->net, set, &elem);
-		break;
 	}
 }
 
@@ -4277,6 +4276,14 @@ static int nf_tables_fill_set_concat(struct sk_buff *skb,
 	return 0;
 }
 
+static u32 nft_set_userspace_size(const struct nft_set_ops *ops, u32 size)
+{
+	if (ops->usize)
+		return ops->usize(size);
+
+	return size;
+}
+
 static int nf_tables_fill_set(struct sk_buff *skb, const struct nft_ctx *ctx,
 			      const struct nft_set *set, u16 event, u16 flags)
 {
@@ -4341,7 +4348,8 @@ static int nf_tables_fill_set(struct sk_buff *skb, const struct nft_ctx *ctx,
 	if (!nest)
 		goto nla_put_failure;
 	if (set->size &&
-	    nla_put_be32(skb, NFTA_SET_DESC_SIZE, htonl(set->size)))
+	    nla_put_be32(skb, NFTA_SET_DESC_SIZE,
+			 htonl(nft_set_userspace_size(set->ops, set->size))))
 		goto nla_put_failure;
 
 	if (set->field_count > 1 &&
@@ -4711,6 +4719,15 @@ static bool nft_set_is_same(const struct nft_set *set,
 	return true;
 }
 
+static u32 nft_set_kernel_size(const struct nft_set_ops *ops,
+			       const struct nft_set_desc *desc)
+{
+	if (ops->ksize)
+		return ops->ksize(desc->size);
+
+	return desc->size;
+}
+
 static int nf_tables_newset(struct sk_buff *skb, const struct nfnl_info *info,
 			    const struct nlattr * const nla[])
 {
@@ -4893,6 +4910,9 @@ static int nf_tables_newset(struct sk_buff *skb, const struct nfnl_info *info,
 		if (err < 0)
 			return err;
 
+		if (desc.size)
+			desc.size = nft_set_kernel_size(set->ops, &desc);
+
 		err = 0;
 		if (!nft_set_is_same(set, &desc, exprs, num_exprs, flags)) {
 			NL_SET_BAD_ATTR(extack, nla[NFTA_SET_NAME]);
@@ -4915,6 +4935,9 @@ static int nf_tables_newset(struct sk_buff *skb, const struct nfnl_info *info,
 	if (IS_ERR(ops))
 		return PTR_ERR(ops);
 
+	if (desc.size)
+		desc.size = nft_set_kernel_size(ops, &desc);
+
 	udlen = 0;
 	if (nla[NFTA_SET_USERDATA])
 		udlen = nla_len(nla[NFTA_SET_USERDATA]);
@@ -5243,7 +5266,6 @@ static void nft_map_catchall_activate(const struct nft_ctx *ctx,
 		nft_clear(ctx->net, ext);
 		elem.priv = catchall->elem;
 		nft_setelem_data_activate(ctx->net, set, &elem);
-		break;
 	}
 }
 
@@ -6356,6 +6378,27 @@ static bool nft_setelem_valid_key_end(const struct nft_set *set,
 	return true;
 }
 
+static u32 nft_set_maxsize(const struct nft_set *set)
+{
+	u32 maxsize, delta;
+
+	if (!set->size)
+		return UINT_MAX;
+
+	if (set->ops->adjust_maxsize)
+		delta = set->ops->adjust_maxsize(set);
+	else
+		delta = 0;
+
+	if (check_add_overflow(set->size, set->ndeact, &maxsize))
+		return UINT_MAX;
+
+	if (check_add_overflow(maxsize, delta, &maxsize))
+		return UINT_MAX;
+
+	return maxsize;
+}
+
 static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 			    const struct nlattr *attr, u32 nlmsg_flags)
 {
@@ -6372,6 +6415,7 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 	struct nft_data_desc desc;
 	enum nft_registers dreg;
 	struct nft_trans *trans;
+	bool set_full = false;
 	u64 timeout;
 	u64 expiration;
 	int err, i;
@@ -6664,10 +6708,18 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 	if (err < 0)
 		goto err_elem_free;
 
+	if (!(flags & NFT_SET_ELEM_CATCHALL)) {
+		unsigned int max = nft_set_maxsize(set), nelems;
+
+		nelems = atomic_inc_return(&set->nelems);
+		if (nelems > max)
+			set_full = true;
+	}
+
 	trans = nft_trans_elem_alloc(ctx, NFT_MSG_NEWSETELEM, set);
 	if (trans == NULL) {
 		err = -ENOMEM;
-		goto err_elem_free;
+		goto err_set_size;
 	}
 
 	ext->genmask = nft_genmask_cur(ctx->net);
@@ -6699,20 +6751,16 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 		goto err_element_clash;
 	}
 
-	if (!(flags & NFT_SET_ELEM_CATCHALL) && set->size &&
-	    !atomic_add_unless(&set->nelems, 1, set->size + set->ndeact)) {
-		err = -ENFILE;
-		goto err_set_full;
-	}
-
 	nft_trans_elem(trans) = elem;
 	nft_trans_commit_list_add_tail(ctx->net, trans);
-	return 0;
 
-err_set_full:
-	nft_setelem_remove(ctx->net, set, &elem);
+	return set_full ? -ENFILE : 0;
+
 err_element_clash:
 	kfree(trans);
+err_set_size:
+	if (!(flags & NFT_SET_ELEM_CATCHALL))
+		atomic_dec(&set->nelems);
 err_elem_free:
 	nf_tables_set_elem_destroy(ctx, set, elem.priv);
 err_parse_data:
diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c
index 23e4e656f7f0..433094c4200f 100644
--- a/net/netfilter/nft_set_rbtree.c
+++ b/net/netfilter/nft_set_rbtree.c
@@ -773,6 +773,46 @@ static bool nft_rbtree_estimate(const struct nft_set_desc *desc, u32 features,
 	return true;
 }
 
+/* rbtree stores ranges as singleton elements, each range is composed of two
+ * elements ...
+ */
+static u32 nft_rbtree_ksize(u32 size)
+{
+	return size * 2;
+}
+
+/* ... hide this detail to userspace. */
+static u32 nft_rbtree_usize(u32 size)
+{
+	if (!size)
+		return 0;
+
+	return size / 2;
+}
+
+static u32 nft_rbtree_adjust_maxsize(const struct nft_set *set)
+{
+	struct nft_rbtree *priv = nft_set_priv(set);
+	struct nft_rbtree_elem *rbe;
+	struct rb_node *node;
+	const void *key;
+
+	node = rb_last(&priv->root);
+	if (!node)
+		return 0;
+
+	rbe = rb_entry(node, struct nft_rbtree_elem, node);
+	if (!nft_rbtree_interval_end(rbe))
+		return 0;
+
+	key = nft_set_ext_key(&rbe->ext);
+	if (memchr(key, 1, set->klen))
+		return 0;
+
+	/* this is the all-zero no-match element. */
+	return 1;
+}
+
 const struct nft_set_type nft_set_rbtree_type = {
 	.features	= NFT_SET_INTERVAL | NFT_SET_MAP | NFT_SET_OBJECT | NFT_SET_TIMEOUT,
 	.ops		= {
@@ -789,5 +829,8 @@ const struct nft_set_type nft_set_rbtree_type = {
 		.lookup		= nft_rbtree_lookup,
 		.walk		= nft_rbtree_walk,
 		.get		= nft_rbtree_get,
+		.ksize		= nft_rbtree_ksize,
+		.usize		= nft_rbtree_usize,
+		.adjust_maxsize = nft_rbtree_adjust_maxsize,
 	},
 };
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index cde671d29d5d..3f020c362d6c 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -98,11 +98,14 @@ static void phonet_device_destroy(struct net_device *dev)
 	mutex_unlock(&pndevs->lock);
 
 	if (pnd) {
+		struct net *net = dev_net(dev);
+		u32 ifindex = dev->ifindex;
 		u8 addr;
 
 		for_each_set_bit(addr, pnd->addrs, 64)
-			phonet_address_notify(RTM_DELADDR, dev, addr);
-		kfree(pnd);
+			phonet_address_notify(net, RTM_DELADDR, ifindex, addr);
+
+		kfree_rcu(pnd, rcu);
 	}
 }
 
@@ -244,8 +247,9 @@ static int phonet_device_autoconf(struct net_device *dev)
 	ret = phonet_address_add(dev, req.ifr_phonet_autoconf.device);
 	if (ret)
 		return ret;
-	phonet_address_notify(RTM_NEWADDR, dev,
-				req.ifr_phonet_autoconf.device);
+
+	phonet_address_notify(dev_net(dev), RTM_NEWADDR, dev->ifindex,
+			      req.ifr_phonet_autoconf.device);
 	return 0;
 }
 
diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
index dd4c7e9a634f..c4c9fda4c3de 100644
--- a/net/phonet/pn_netlink.c
+++ b/net/phonet/pn_netlink.c
@@ -19,10 +19,10 @@
 
 /* Device address handling */
 
-static int fill_addr(struct sk_buff *skb, struct net_device *dev, u8 addr,
+static int fill_addr(struct sk_buff *skb, u32 ifindex, u8 addr,
 		     u32 portid, u32 seq, int event);
 
-void phonet_address_notify(int event, struct net_device *dev, u8 addr)
+void phonet_address_notify(struct net *net, int event, u32 ifindex, u8 addr)
 {
 	struct sk_buff *skb;
 	int err = -ENOBUFS;
@@ -31,17 +31,18 @@ void phonet_address_notify(int event, struct net_device *dev, u8 addr)
 			nla_total_size(1), GFP_KERNEL);
 	if (skb == NULL)
 		goto errout;
-	err = fill_addr(skb, dev, addr, 0, 0, event);
+
+	err = fill_addr(skb, ifindex, addr, 0, 0, event);
 	if (err < 0) {
 		WARN_ON(err == -EMSGSIZE);
 		kfree_skb(skb);
 		goto errout;
 	}
-	rtnl_notify(skb, dev_net(dev), 0,
-		    RTNLGRP_PHONET_IFADDR, NULL, GFP_KERNEL);
+
+	rtnl_notify(skb, net, 0, RTNLGRP_PHONET_IFADDR, NULL, GFP_KERNEL);
 	return;
 errout:
-	rtnl_set_sk_err(dev_net(dev), RTNLGRP_PHONET_IFADDR, err);
+	rtnl_set_sk_err(net, RTNLGRP_PHONET_IFADDR, err);
 }
 
 static const struct nla_policy ifa_phonet_policy[IFA_MAX+1] = {
@@ -88,12 +89,12 @@ static int addr_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
 	else
 		err = phonet_address_del(dev, pnaddr);
 	if (!err)
-		phonet_address_notify(nlh->nlmsg_type, dev, pnaddr);
+		phonet_address_notify(net, nlh->nlmsg_type, ifm->ifa_index, pnaddr);
 	return err;
 }
 
-static int fill_addr(struct sk_buff *skb, struct net_device *dev, u8 addr,
-			u32 portid, u32 seq, int event)
+static int fill_addr(struct sk_buff *skb, u32 ifindex, u8 addr,
+		     u32 portid, u32 seq, int event)
 {
 	struct ifaddrmsg *ifm;
 	struct nlmsghdr *nlh;
@@ -107,7 +108,7 @@ static int fill_addr(struct sk_buff *skb, struct net_device *dev, u8 addr,
 	ifm->ifa_prefixlen = 0;
 	ifm->ifa_flags = IFA_F_PERMANENT;
 	ifm->ifa_scope = RT_SCOPE_LINK;
-	ifm->ifa_index = dev->ifindex;
+	ifm->ifa_index = ifindex;
 	if (nla_put_u8(skb, IFA_LOCAL, addr))
 		goto nla_put_failure;
 	nlmsg_end(skb, nlh);
@@ -140,7 +141,7 @@ static int getaddr_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
 			if (addr_idx++ < addr_start_idx)
 				continue;
 
-			if (fill_addr(skb, pnd->netdev, addr << 2,
+			if (fill_addr(skb, pnd->netdev->ifindex, addr << 2,
 					 NETLINK_CB(cb->skb).portid,
 					cb->nlh->nlmsg_seq, RTM_NEWADDR) < 0)
 				goto out;
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index aee2e13f1db6..09310b56b45b 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -16,6 +16,8 @@
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <linux/slab.h>
+#include <linux/overflow.h>
+#include <asm/unaligned.h>
 #include <net/ipv6.h>
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
@@ -237,7 +239,6 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
 		goto out_free_ex;
 	}
 
-	nparms->tcfp_off_max_hint = 0;
 	nparms->tcfp_flags = parm->flags;
 	nparms->tcfp_nkeys = parm->nkeys;
 
@@ -250,21 +251,21 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
 	memcpy(nparms->tcfp_keys, parm->keys, ksize);
 
 	for (i = 0; i < nparms->tcfp_nkeys; ++i) {
+		u32 offmask = nparms->tcfp_keys[i].offmask;
 		u32 cur = nparms->tcfp_keys[i].off;
 
+		/* The AT option can be added to static offsets in the datapath */
+		if (!offmask && cur % 4) {
+			NL_SET_ERR_MSG_MOD(extack, "Offsets must be on 32bit boundaries");
+			ret = -EINVAL;
+			goto out_free_keys;
+		}
+
 		/* sanitize the shift value for any later use */
 		nparms->tcfp_keys[i].shift = min_t(size_t,
 						   BITS_PER_TYPE(int) - 1,
 						   nparms->tcfp_keys[i].shift);
 
-		/* The AT option can read a single byte, we can bound the actual
-		 * value with uchar max.
-		 */
-		cur += (0xff & nparms->tcfp_keys[i].offmask) >> nparms->tcfp_keys[i].shift;
-
-		/* Each key touches 4 bytes starting from the computed offset */
-		nparms->tcfp_off_max_hint =
-			max(nparms->tcfp_off_max_hint, cur + 4);
 	}
 
 	p = to_pedit(*a);
@@ -282,6 +283,8 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
 
 	return ret;
 
+out_free_keys:
+	kfree(nparms->tcfp_keys);
 put_chain:
 	if (goto_ch)
 		tcf_chain_put_by_act(goto_ch);
@@ -305,15 +308,12 @@ static void tcf_pedit_cleanup(struct tc_action *a)
 		call_rcu(&parms->rcu, tcf_pedit_cleanup_rcu);
 }
 
-static bool offset_valid(struct sk_buff *skb, int offset)
+static bool offset_valid(struct sk_buff *skb, int offset, int len)
 {
-	if (offset > 0 && offset > skb->len)
+	if (offset < -(int)skb_headroom(skb))
 		return false;
 
-	if  (offset < 0 && -offset > skb_headroom(skb))
-		return false;
-
-	return true;
+	return offset <= (int)skb->len - len;
 }
 
 static int pedit_l4_skb_offset(struct sk_buff *skb, int *hoffset, const int header_type)
@@ -379,18 +379,10 @@ static int tcf_pedit_act(struct sk_buff *skb, const struct tc_action *a,
 	struct tcf_pedit_key_ex *tkey_ex;
 	struct tcf_pedit_parms *parms;
 	struct tc_pedit_key *tkey;
-	u32 max_offset;
 	int i;
 
 	parms = rcu_dereference_bh(p->parms);
 
-	max_offset = (skb_transport_header_was_set(skb) ?
-		      skb_transport_offset(skb) :
-		      skb_network_offset(skb)) +
-		     parms->tcfp_off_max_hint;
-	if (skb_ensure_writable(skb, min(skb->len, max_offset)))
-		goto done;
-
 	tcf_lastuse_update(&p->tcf_tm);
 	tcf_action_update_bstats(&p->common, skb);
 
@@ -398,10 +390,11 @@ static int tcf_pedit_act(struct sk_buff *skb, const struct tc_action *a,
 	tkey_ex = parms->tcfp_keys_ex;
 
 	for (i = parms->tcfp_nkeys; i > 0; i--, tkey++) {
+		int write_offset, write_len;
 		int offset = tkey->off;
 		int hoffset = 0;
-		u32 *ptr, hdata;
-		u32 val;
+		u32 cur_val, val;
+		u32 *ptr;
 		int rc;
 
 		if (tkey_ex) {
@@ -419,51 +412,71 @@ static int tcf_pedit_act(struct sk_buff *skb, const struct tc_action *a,
 
 		if (tkey->offmask) {
 			u8 *d, _d;
+			int at_offset;
 
-			if (!offset_valid(skb, hoffset + tkey->at)) {
-				pr_info("tc action pedit 'at' offset %d out of bounds\n",
-					hoffset + tkey->at);
+			if (check_add_overflow(hoffset, (int)tkey->at, &at_offset) ||
+			    !offset_valid(skb, at_offset, sizeof(_d))) {
+				pr_info_ratelimited("tc action pedit 'at' offset %d out of bounds\n",
+						    hoffset + tkey->at);
 				goto bad;
 			}
-			d = skb_header_pointer(skb, hoffset + tkey->at,
+			d = skb_header_pointer(skb, at_offset,
 					       sizeof(_d), &_d);
 			if (!d)
 				goto bad;
+
 			offset += (*d & tkey->offmask) >> tkey->shift;
+			if (offset % 4) {
+				pr_info_ratelimited("tc action pedit offset must be on 32 bit boundaries\n");
+				goto bad;
+			}
 		}
 
-		if (offset % 4) {
-			pr_info("tc action pedit offset must be on 32 bit boundaries\n");
+		if (check_add_overflow(hoffset, offset, &write_offset)) {
+			pr_info_ratelimited("tc action pedit offset overflow\n");
 			goto bad;
 		}
 
-		if (!offset_valid(skb, hoffset + offset)) {
-			pr_info("tc action pedit offset %d out of bounds\n",
-				hoffset + offset);
+		if (!offset_valid(skb, write_offset, sizeof(*ptr))) {
+			pr_info_ratelimited("tc action pedit offset %d out of bounds\n",
+					    write_offset);
 			goto bad;
 		}
 
-		ptr = skb_header_pointer(skb, hoffset + offset,
-					 sizeof(hdata), &hdata);
-		if (!ptr)
-			goto bad;
+		if (write_offset < 0) {
+			if (skb_cow(skb, -write_offset))
+				goto bad;
+			if (write_offset + (int)sizeof(*ptr) > 0) {
+				if (skb_ensure_writable(skb,
+							min_t(int, skb->len,
+							      write_offset + (int)sizeof(*ptr))))
+					goto bad;
+			}
+		} else {
+			if (check_add_overflow(write_offset, (int)sizeof(*ptr),
+					       &write_len))
+				goto bad;
+			if (skb_ensure_writable(skb, min_t(int, skb->len,
+							   write_len)))
+				goto bad;
+		}
+
+		ptr = (u32 *)(skb->data + write_offset);
+		cur_val = get_unaligned(ptr);
 		/* just do it, baby */
 		switch (cmd) {
 		case TCA_PEDIT_KEY_EX_CMD_SET:
 			val = tkey->val;
 			break;
 		case TCA_PEDIT_KEY_EX_CMD_ADD:
-			val = (*ptr + tkey->val) & ~tkey->mask;
+			val = (cur_val + tkey->val) & ~tkey->mask;
 			break;
 		default:
-			pr_info("tc action pedit bad command (%d)\n",
-				cmd);
+			pr_info_ratelimited("tc action pedit bad command (%d)\n", cmd);
 			goto bad;
 		}
 
-		*ptr = ((*ptr & tkey->mask) ^ val);
-		if (ptr == &hdata)
-			skb_store_bits(skb, hoffset + offset, ptr, 4);
+		put_unaligned((cur_val & tkey->mask) ^ val, ptr);
 	}
 
 	goto done;
diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c
index 46a1da33ed79..d86b3a8f7078 100644
--- a/net/tipc/crypto.c
+++ b/net/tipc/crypto.c
@@ -950,12 +950,20 @@ static int tipc_aead_decrypt(struct net *net, struct tipc_aead *aead,
 		goto exit;
 	}
 
+	/* Get net to avoid freed tipc_crypto when delete namespace */
+	if (!maybe_get_net(net)) {
+		tipc_bearer_put(b);
+		rc = -ENODEV;
+		goto exit;
+	}
+
 	/* Now, do decrypt */
 	rc = crypto_aead_decrypt(req);
 	if (rc == -EINPROGRESS || rc == -EBUSY)
 		return rc;
 
 	tipc_bearer_put(b);
+	put_net(net);
 
 exit:
 	kfree(ctx);
@@ -993,6 +1001,7 @@ static void tipc_aead_decrypt_done(struct crypto_async_request *base, int err)
 	}
 
 	tipc_bearer_put(b);
+	put_net(net);
 }
 
 static inline int tipc_ehdr_size(struct tipc_ehdr *ehdr)
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index de85e26d9675..1b4e35dcb996 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -624,6 +624,7 @@ static int tls_split_open_record(struct sock *sk, struct tls_rec *from,
 	struct scatterlist *sge, *osge, *nsge;
 	u32 orig_size = msg_opl->sg.size;
 	struct scatterlist tmp = { };
+	u32 tmp_i = 0;
 	struct sk_msg *msg_npl;
 	struct tls_rec *new;
 	int ret;
@@ -645,6 +646,7 @@ static int tls_split_open_record(struct sock *sk, struct tls_rec *from,
 		if (sge->length > apply) {
 			u32 len = sge->length - apply;
 
+			tmp_i = i;
 			get_page(sg_page(sge));
 			sg_set_page(&tmp, sg_page(sge), len,
 				    sge->offset + apply);
@@ -676,6 +678,7 @@ static int tls_split_open_record(struct sock *sk, struct tls_rec *from,
 	nsge = sk_msg_elem(msg_npl, j);
 	if (tmp.length) {
 		memcpy(nsge, &tmp, sizeof(*nsge));
+		sk_msg_sg_copy_assign(msg_npl, j, msg_opl, tmp_i);
 		sk_msg_iter_var_next(j);
 		nsge = sk_msg_elem(msg_npl, j);
 	}
@@ -683,6 +686,7 @@ static int tls_split_open_record(struct sock *sk, struct tls_rec *from,
 	osge = sk_msg_elem(msg_opl, i);
 	while (osge->length) {
 		memcpy(nsge, osge, sizeof(*nsge));
+		sk_msg_sg_copy_assign(msg_npl, j, msg_opl, i);
 		sg_unmark_end(nsge);
 		sk_msg_iter_var_next(i);
 		sk_msg_iter_var_next(j);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index a268a483efcd..3e5dc698416f 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1610,7 +1610,7 @@ static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,
 	__skb_queue_tail(&other->sk_receive_queue, skb);
 	spin_unlock(&other->sk_receive_queue.lock);
 	unix_state_unlock(other);
-	other->sk_data_ready(other);
+	READ_ONCE(other->sk_data_ready)(other);
 	sock_put(other);
 	return 0;
 
@@ -2082,7 +2082,7 @@ static int unix_dgram_sendmsg(struct socket *sock, struct msghdr *msg,
 	scm_stat_add(other, skb);
 	skb_queue_tail(&other->sk_receive_queue, skb);
 	unix_state_unlock(other);
-	other->sk_data_ready(other);
+	READ_ONCE(other->sk_data_ready)(other);
 	sock_put(other);
 	scm_destroy(&scm);
 	return len;
@@ -2150,7 +2150,7 @@ static int queue_oob(struct socket *sock, struct msghdr *msg, struct sock *other
 
 	sk_send_sigurg(other);
 	unix_state_unlock(other);
-	other->sk_data_ready(other);
+	READ_ONCE(other->sk_data_ready)(other);
 
 	return err;
 }
@@ -2243,7 +2243,7 @@ static int unix_stream_sendmsg(struct socket *sock, struct msghdr *msg,
 		scm_stat_add(other, skb);
 		skb_queue_tail(&other->sk_receive_queue, skb);
 		unix_state_unlock(other);
-		other->sk_data_ready(other);
+		READ_ONCE(other->sk_data_ready)(other);
 		sent += size;
 	}
 
@@ -3181,6 +3181,9 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 			struct sk_buff *skb;
 			int answ = 0;
 
+			if (sk->sk_type != SOCK_STREAM)
+				return -EOPNOTSUPP;
+
 			skb = skb_peek(&sk->sk_receive_queue);
 			if (skb && skb == READ_ONCE(unix_sk(sk)->oob_skb))
 				answ = 1;
diff --git a/security/apparmor/include/policy_unpack.h b/security/apparmor/include/policy_unpack.h
index 4d7be953724e..054278fe5459 100644
--- a/security/apparmor/include/policy_unpack.h
+++ b/security/apparmor/include/policy_unpack.h
@@ -161,6 +161,25 @@ aa_get_profile_loaddata(struct aa_loaddata *data)
 	return data;
 }
 
+/**
+ * aa_get_profile_loaddata_not0 - get a profile reference count if not zero
+ * @data: reference to get a count on
+ *
+ * Like aa_get_profile_loaddata(), but safe to call on an entry that may
+ * be on a list (e.g. ns->rawdata_list) where the last pcount has already
+ * dropped and the deferred cleanup has not yet run.
+ *
+ * Returns: pointer to reference, or %NULL if @data is NULL or its
+ *          profile refcount has already reached zero.
+ */
+static inline struct aa_loaddata *
+aa_get_profile_loaddata_not0(struct aa_loaddata *data)
+{
+	if (data && kref_get_unless_zero(&data->pcount))
+		return data;
+	return NULL;
+}
+
 void __aa_loaddata_update(struct aa_loaddata *data, long revision);
 bool aa_rawdata_eq(struct aa_loaddata *l, struct aa_loaddata *r);
 void aa_loaddata_kref(struct kref *kref);
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 97389b9c4129..d288d9d146ce 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -984,7 +984,21 @@ static int aa_sock_msg_perm(const char *op, u32 request, struct socket *sock,
 static int apparmor_socket_sendmsg(struct socket *sock,
 				   struct msghdr *msg, int size)
 {
-	return aa_sock_msg_perm(OP_SENDMSG, AA_MAY_SEND, sock, msg, size);
+	int error = aa_sock_msg_perm(OP_SENDMSG, AA_MAY_SEND, sock, msg, size);
+
+	if (error)
+		return error;
+
+	/* TCP fast open carries connect() semantics in sendmsg(); mediate
+	 * the implicit connect so it cannot bypass the connect permission.
+	 */
+	if ((msg->msg_flags & MSG_FASTOPEN) && msg->msg_name &&
+	    (sk_is_tcp(sock->sk) ||
+	     (sk_is_inet(sock->sk) && sock->sk->sk_type == SOCK_STREAM &&
+	      sock->sk->sk_protocol == IPPROTO_MPTCP)))
+		error = aa_sk_perm(OP_CONNECT, AA_MAY_CONNECT, sock->sk);
+
+	return error;
 }
 
 /**
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
index c94e7a6d64b1..030625a53f76 100644
--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -1018,8 +1018,12 @@ ssize_t aa_replace_profiles(struct aa_ns *policy_ns, struct aa_label *label,
 			if (aa_rawdata_eq(rawdata_ent, udata)) {
 				struct aa_loaddata *tmp;
 
-				tmp = aa_get_profile_loaddata(rawdata_ent);
-				/* check we didn't fail the race */
+				/*
+				 * Entries remain on rawdata_list with
+				 * pcount == 0 until do_ploaddata_rmfs()
+				 * runs; only take a live profile ref.
+				 */
+				tmp = aa_get_profile_loaddata_not0(rawdata_ent);
 				if (tmp) {
 					aa_put_profile_loaddata(udata);
 					udata = tmp;
diff --git a/security/keys/internal.h b/security/keys/internal.h
index ec2ec335b613..b919495243e7 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -215,6 +215,8 @@ extern struct key *request_key_auth_new(struct key *target,
 					const void *callout_info,
 					size_t callout_len,
 					struct key *dest_keyring);
+struct request_key_auth *request_key_auth_get(struct key *authkey);
+void request_key_auth_put(struct request_key_auth *rka);
 
 extern struct key *key_get_instantiation_authkey(key_serial_t target_id);
 
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index aa1dc43b16dd..127c17191785 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1196,9 +1196,13 @@ static long keyctl_instantiate_key_common(key_serial_t id,
 	if (!instkey)
 		goto error;
 
-	rka = instkey->payload.data[0];
-	if (rka->target_key->serial != id)
+	rka = request_key_auth_get(instkey);
+	if (!rka) {
+		ret = -EKEYREVOKED;
 		goto error;
+	}
+	if (rka->target_key->serial != id)
+		goto error_put_rka;
 
 	/* pull the payload in if one was supplied */
 	payload = NULL;
@@ -1207,7 +1211,7 @@ static long keyctl_instantiate_key_common(key_serial_t id,
 		ret = -ENOMEM;
 		payload = kvmalloc(plen, GFP_KERNEL);
 		if (!payload)
-			goto error;
+			goto error_put_rka;
 
 		ret = -EFAULT;
 		if (!copy_from_iter_full(payload, plen, from))
@@ -1233,6 +1237,8 @@ static long keyctl_instantiate_key_common(key_serial_t id,
 
 error2:
 	kvfree_sensitive(payload, plen);
+error_put_rka:
+	request_key_auth_put(rka);
 error:
 	return ret;
 }
@@ -1358,15 +1364,19 @@ long keyctl_reject_key(key_serial_t id, unsigned timeout, unsigned error,
 	if (!instkey)
 		goto error;
 
-	rka = instkey->payload.data[0];
-	if (rka->target_key->serial != id)
+	rka = request_key_auth_get(instkey);
+	if (!rka) {
+		ret = -EKEYREVOKED;
 		goto error;
+	}
+	if (rka->target_key->serial != id)
+		goto error_put_rka;
 
 	/* find the destination keyring if present (which must also be
 	 * writable) */
 	ret = get_instantiation_keyring(ringid, rka, &dest_keyring);
 	if (ret < 0)
-		goto error;
+		goto error_put_rka;
 
 	/* instantiate the key and link it into a keyring */
 	ret = key_reject_and_link(rka->target_key, timeout, error,
@@ -1379,6 +1389,8 @@ long keyctl_reject_key(key_serial_t id, unsigned timeout, unsigned error,
 	if (ret == 0)
 		keyctl_change_reqkey_auth(NULL);
 
+error_put_rka:
+	request_key_auth_put(rka);
 error:
 	return ret;
 }
diff --git a/security/keys/keyctl_pkey.c b/security/keys/keyctl_pkey.c
index 97bc27bbf079..ba150ee2d4a3 100644
--- a/security/keys/keyctl_pkey.c
+++ b/security/keys/keyctl_pkey.c
@@ -138,28 +138,35 @@ static int keyctl_pkey_params_get_2(const struct keyctl_pkey_params __user *_par
 		if (uparams.in_len  > info.max_dec_size ||
 		    uparams.out_len > info.max_enc_size)
 			return -EINVAL;
+
+		params->out_len = info.max_enc_size;
 		break;
 	case KEYCTL_PKEY_DECRYPT:
 		if (uparams.in_len  > info.max_enc_size ||
 		    uparams.out_len > info.max_dec_size)
 			return -EINVAL;
+
+		params->out_len = info.max_dec_size;
 		break;
 	case KEYCTL_PKEY_SIGN:
 		if (uparams.in_len  > info.max_data_size ||
 		    uparams.out_len > info.max_sig_size)
 			return -EINVAL;
+
+		params->out_len = info.max_sig_size;
 		break;
 	case KEYCTL_PKEY_VERIFY:
 		if (uparams.in_len  > info.max_data_size ||
 		    uparams.in2_len > info.max_sig_size)
 			return -EINVAL;
+
+		params->out_len = info.max_sig_size;
 		break;
 	default:
 		BUG();
 	}
 
 	params->in_len  = uparams.in_len;
-	params->out_len = uparams.out_len; /* Note: same as in2_len */
 	return 0;
 }
 
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index 41e9735006d0..20f3f1f4893e 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -23,6 +23,7 @@ static void request_key_auth_describe(const struct key *, struct seq_file *);
 static void request_key_auth_revoke(struct key *);
 static void request_key_auth_destroy(struct key *);
 static long request_key_auth_read(const struct key *, char *, size_t);
+static void request_key_auth_rcu_disposal(struct rcu_head *);
 
 /*
  * The request-key authorisation key type definition.
@@ -115,6 +116,31 @@ static void free_request_key_auth(struct request_key_auth *rka)
 	kfree(rka);
 }
 
+/*
+ * Take a reference to the request-key authorisation payload so callers can
+ * drop authkey->sem before doing operations that may sleep.
+ */
+struct request_key_auth *request_key_auth_get(struct key *authkey)
+{
+	struct request_key_auth *rka;
+
+	down_read(&authkey->sem);
+	rka = dereference_key_locked(authkey);
+	if (rka && !test_bit(KEY_FLAG_REVOKED, &authkey->flags))
+		refcount_inc(&rka->usage);
+	else
+		rka = NULL;
+	up_read(&authkey->sem);
+
+	return rka;
+}
+
+void request_key_auth_put(struct request_key_auth *rka)
+{
+	if (rka && refcount_dec_and_test(&rka->usage))
+		call_rcu(&rka->rcu, request_key_auth_rcu_disposal);
+}
+
 /*
  * Dispose of the request_key_auth record under RCU conditions
  */
@@ -136,8 +162,10 @@ static void request_key_auth_revoke(struct key *key)
 	struct request_key_auth *rka = dereference_key_locked(key);
 
 	kenter("{%d}", key->serial);
+	if (!rka)
+		return;
 	rcu_assign_keypointer(key, NULL);
-	call_rcu(&rka->rcu, request_key_auth_rcu_disposal);
+	request_key_auth_put(rka);
 }
 
 /*
@@ -150,7 +178,7 @@ static void request_key_auth_destroy(struct key *key)
 	kenter("{%d}", key->serial);
 	if (rka) {
 		rcu_assign_keypointer(key, NULL);
-		call_rcu(&rka->rcu, request_key_auth_rcu_disposal);
+		request_key_auth_put(rka);
 	}
 }
 
@@ -174,6 +202,7 @@ struct key *request_key_auth_new(struct key *target, const char *op,
 	rka = kzalloc(sizeof(*rka), GFP_KERNEL);
 	if (!rka)
 		goto error;
+	refcount_set(&rka->usage, 1);
 	rka->callout_info = kmemdup(callout_info, callout_len, GFP_KERNEL);
 	if (!rka->callout_info)
 		goto error_free_rka;
diff --git a/tools/perf/bench/find-bit-bench.c b/tools/perf/bench/find-bit-bench.c
index 22b5cfe97023..80f051f9c20f 100644
--- a/tools/perf/bench/find-bit-bench.c
+++ b/tools/perf/bench/find-bit-bench.c
@@ -61,7 +61,6 @@ static int do_for_each_set_bit(unsigned int num_bits)
 	double time_average, time_stddev;
 	unsigned int bit, i, j;
 	unsigned int set_bits, skip;
-	unsigned int old;
 
 	init_stats(&fb_time_stats);
 	init_stats(&tb_time_stats);
@@ -73,7 +72,10 @@ static int do_for_each_set_bit(unsigned int num_bits)
 			set_bit(i, to_test);
 
 		for (i = 0; i < outer_iterations; i++) {
-			old = accumulator;
+#ifndef NDEBUG
+			unsigned int old = accumulator;
+#endif
+
 			gettimeofday(&start, NULL);
 			for (j = 0; j < inner_iterations; j++) {
 				for_each_set_bit(bit, to_test, num_bits)
@@ -85,7 +87,9 @@ static int do_for_each_set_bit(unsigned int num_bits)
 			runtime_us = diff.tv_sec * USEC_PER_SEC + diff.tv_usec;
 			update_stats(&fb_time_stats, runtime_us);
 
+#ifndef NDEBUG
 			old = accumulator;
+#endif
 			gettimeofday(&start, NULL);
 			for (j = 0; j < inner_iterations; j++) {
 				for (bit = 0; bit < num_bits; bit++) {
diff --git a/tools/perf/util/block-range.c b/tools/perf/util/block-range.c
index 1be432657501..680e92774d0c 100644
--- a/tools/perf/util/block-range.c
+++ b/tools/perf/util/block-range.c
@@ -11,11 +11,7 @@ struct {
 
 static void block_range__debug(void)
 {
-	/*
-	 * XXX still paranoid for now; see if we can make this depend on
-	 * DEBUG=1 builds.
-	 */
-#if 1
+#ifndef NDEBUG
 	struct rb_node *rb;
 	u64 old = 0; /* NULL isn't executable */
 
diff --git a/tools/testing/selftests/bpf/bench.h b/tools/testing/selftests/bpf/bench.h
index 669593871483..2c94c57885af 100644
--- a/tools/testing/selftests/bpf/bench.h
+++ b/tools/testing/selftests/bpf/bench.h
@@ -79,15 +79,6 @@ void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt,
 void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt,
 				    struct basic_stats *gp_stat);
 
-static inline __u64 get_time_ns(void)
-{
-	struct timespec t;
-
-	clock_gettime(CLOCK_MONOTONIC, &t);
-
-	return (u64)t.tv_sec * 1000000000 + t.tv_nsec;
-}
-
 static inline void atomic_inc(long *value)
 {
 	(void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED);
diff --git a/tools/testing/selftests/bpf/prog_tests/empty_skb.c b/tools/testing/selftests/bpf/prog_tests/empty_skb.c
index 329e34e5226e..33c8631fc1a7 100644
--- a/tools/testing/selftests/bpf/prog_tests/empty_skb.c
+++ b/tools/testing/selftests/bpf/prog_tests/empty_skb.c
@@ -4,11 +4,6 @@
 #include <net/if.h>
 #include "empty_skb.skel.h"
 
-#define SYS(cmd) ({ \
-	if (!ASSERT_OK(system(cmd), (cmd))) \
-		goto out; \
-})
-
 void serial_test_empty_skb(void)
 {
 	LIBBPF_OPTS(bpf_test_run_opts, tattr);
@@ -97,18 +92,18 @@ void serial_test_empty_skb(void)
 		},
 	};
 
-	SYS("ip netns add empty_skb");
+	SYS(out, "ip netns add empty_skb");
 	tok = open_netns("empty_skb");
-	SYS("ip link add veth0 type veth peer veth1");
-	SYS("ip link set dev veth0 up");
-	SYS("ip link set dev veth1 up");
-	SYS("ip addr add 10.0.0.1/8 dev veth0");
-	SYS("ip addr add 10.0.0.2/8 dev veth1");
+	SYS(out, "ip link add veth0 type veth peer veth1");
+	SYS(out, "ip link set dev veth0 up");
+	SYS(out, "ip link set dev veth1 up");
+	SYS(out, "ip addr add 10.0.0.1/8 dev veth0");
+	SYS(out, "ip addr add 10.0.0.2/8 dev veth1");
 	veth_ifindex = if_nametoindex("veth0");
 
-	SYS("ip link add ipip0 type ipip local 10.0.0.1 remote 10.0.0.2");
-	SYS("ip link set ipip0 up");
-	SYS("ip addr add 192.168.1.1/16 dev ipip0");
+	SYS(out, "ip link add ipip0 type ipip local 10.0.0.1 remote 10.0.0.2");
+	SYS(out, "ip link set ipip0 up");
+	SYS(out, "ip addr add 192.168.1.1/16 dev ipip0");
 	ipip_ifindex = if_nametoindex("ipip0");
 
 	bpf_obj = empty_skb__open_and_load();
@@ -150,5 +145,5 @@ void serial_test_empty_skb(void)
 		empty_skb__destroy(bpf_obj);
 	if (tok)
 		close_netns(tok);
-	system("ip netns del empty_skb");
+	SYS_NOFAIL("ip netns del empty_skb");
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
index 0d82e28aed1a..8086e2834646 100644
--- a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
@@ -304,14 +304,6 @@ static void test_attach_api_fails(void)
 	kprobe_multi__destroy(skel);
 }
 
-static inline __u64 get_time_ns(void)
-{
-	struct timespec t;
-
-	clock_gettime(CLOCK_MONOTONIC, &t);
-	return (__u64) t.tv_sec * 1000000000 + t.tv_nsec;
-}
-
 static size_t symbol_hash(const void *key, void *ctx __maybe_unused)
 {
 	return str_hash((const char *) key);
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_link.c b/tools/testing/selftests/bpf/prog_tests/perf_link.c
index 224eba6fef2e..d734526d6a16 100644
--- a/tools/testing/selftests/bpf/prog_tests/perf_link.c
+++ b/tools/testing/selftests/bpf/prog_tests/perf_link.c
@@ -4,8 +4,12 @@
 #include <pthread.h>
 #include <sched.h>
 #include <test_progs.h>
+#include "testing_helpers.h"
 #include "test_perf_link.skel.h"
 
+#define BURN_TIMEOUT_MS 100
+#define BURN_TIMEOUT_NS BURN_TIMEOUT_MS * 1000000
+
 static void burn_cpu(void)
 {
 	volatile int j = 0;
@@ -32,6 +36,7 @@ void serial_test_perf_link(void)
 	int run_cnt_before, run_cnt_after;
 	struct bpf_link_info info;
 	__u32 info_len = sizeof(info);
+	__u64 timeout_time_ns;
 
 	/* create perf event */
 	memset(&attr, 0, sizeof(attr));
@@ -63,8 +68,14 @@ void serial_test_perf_link(void)
 	ASSERT_GT(info.prog_id, 0, "link_prog_id");
 
 	/* ensure we get at least one perf_event prog execution */
-	burn_cpu();
-	ASSERT_GT(skel->bss->run_cnt, 0, "run_cnt");
+	timeout_time_ns = get_time_ns() + BURN_TIMEOUT_NS;
+	while (true) {
+		burn_cpu();
+		if (skel->bss->run_cnt > 0)
+			break;
+	        if (!ASSERT_LT(get_time_ns(), timeout_time_ns, "run_cnt_timeout"))
+			break;
+	}
 
 	/* perf_event is still active, but we close link and BPF program
 	 * shouldn't be executed anymore
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
index cb6a53b3e023..c01733b5c4be 100644
--- a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
+++ b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
@@ -160,24 +160,16 @@ static int get_ifindex(const char *name)
 	return atoi(buf);
 }
 
-#define SYS(fmt, ...)						\
-	({							\
-		char cmd[1024];					\
-		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);	\
-		if (!ASSERT_OK(system(cmd), cmd))		\
-			goto fail;				\
-	})
-
 static int netns_setup_links_and_routes(struct netns_setup_result *result)
 {
 	struct nstoken *nstoken = NULL;
 	char veth_src_fwd_addr[IFADDR_STR_LEN+1] = {};
 
-	SYS("ip link add veth_src type veth peer name veth_src_fwd");
-	SYS("ip link add veth_dst type veth peer name veth_dst_fwd");
+	SYS(fail, "ip link add veth_src type veth peer name veth_src_fwd");
+	SYS(fail, "ip link add veth_dst type veth peer name veth_dst_fwd");
 
-	SYS("ip link set veth_dst_fwd address " MAC_DST_FWD);
-	SYS("ip link set veth_dst address " MAC_DST);
+	SYS(fail, "ip link set veth_dst_fwd address " MAC_DST_FWD);
+	SYS(fail, "ip link set veth_dst address " MAC_DST);
 
 	if (get_ifaddr("veth_src_fwd", veth_src_fwd_addr))
 		goto fail;
@@ -189,27 +181,27 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result)
 	if (result->ifindex_veth_dst_fwd < 0)
 		goto fail;
 
-	SYS("ip link set veth_src netns " NS_SRC);
-	SYS("ip link set veth_src_fwd netns " NS_FWD);
-	SYS("ip link set veth_dst_fwd netns " NS_FWD);
-	SYS("ip link set veth_dst netns " NS_DST);
+	SYS(fail, "ip link set veth_src netns " NS_SRC);
+	SYS(fail, "ip link set veth_src_fwd netns " NS_FWD);
+	SYS(fail, "ip link set veth_dst_fwd netns " NS_FWD);
+	SYS(fail, "ip link set veth_dst netns " NS_DST);
 
 	/** setup in 'src' namespace */
 	nstoken = open_netns(NS_SRC);
 	if (!ASSERT_OK_PTR(nstoken, "setns src"))
 		goto fail;
 
-	SYS("ip addr add " IP4_SRC "/32 dev veth_src");
-	SYS("ip addr add " IP6_SRC "/128 dev veth_src nodad");
-	SYS("ip link set dev veth_src up");
+	SYS(fail, "ip addr add " IP4_SRC "/32 dev veth_src");
+	SYS(fail, "ip addr add " IP6_SRC "/128 dev veth_src nodad");
+	SYS(fail, "ip link set dev veth_src up");
 
-	SYS("ip route add " IP4_DST "/32 dev veth_src scope global");
-	SYS("ip route add " IP4_NET "/16 dev veth_src scope global");
-	SYS("ip route add " IP6_DST "/128 dev veth_src scope global");
+	SYS(fail, "ip route add " IP4_DST "/32 dev veth_src scope global");
+	SYS(fail, "ip route add " IP4_NET "/16 dev veth_src scope global");
+	SYS(fail, "ip route add " IP6_DST "/128 dev veth_src scope global");
 
-	SYS("ip neigh add " IP4_DST " dev veth_src lladdr %s",
+	SYS(fail, "ip neigh add " IP4_DST " dev veth_src lladdr %s",
 	    veth_src_fwd_addr);
-	SYS("ip neigh add " IP6_DST " dev veth_src lladdr %s",
+	SYS(fail, "ip neigh add " IP6_DST " dev veth_src lladdr %s",
 	    veth_src_fwd_addr);
 
 	close_netns(nstoken);
@@ -223,15 +215,15 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result)
 	 * needs v4 one in order to start ARP probing. IP4_NET route is added
 	 * to the endpoints so that the ARP processing will reply.
 	 */
-	SYS("ip addr add " IP4_SLL "/32 dev veth_src_fwd");
-	SYS("ip addr add " IP4_DLL "/32 dev veth_dst_fwd");
-	SYS("ip link set dev veth_src_fwd up");
-	SYS("ip link set dev veth_dst_fwd up");
+	SYS(fail, "ip addr add " IP4_SLL "/32 dev veth_src_fwd");
+	SYS(fail, "ip addr add " IP4_DLL "/32 dev veth_dst_fwd");
+	SYS(fail, "ip link set dev veth_src_fwd up");
+	SYS(fail, "ip link set dev veth_dst_fwd up");
 
-	SYS("ip route add " IP4_SRC "/32 dev veth_src_fwd scope global");
-	SYS("ip route add " IP6_SRC "/128 dev veth_src_fwd scope global");
-	SYS("ip route add " IP4_DST "/32 dev veth_dst_fwd scope global");
-	SYS("ip route add " IP6_DST "/128 dev veth_dst_fwd scope global");
+	SYS(fail, "ip route add " IP4_SRC "/32 dev veth_src_fwd scope global");
+	SYS(fail, "ip route add " IP6_SRC "/128 dev veth_src_fwd scope global");
+	SYS(fail, "ip route add " IP4_DST "/32 dev veth_dst_fwd scope global");
+	SYS(fail, "ip route add " IP6_DST "/128 dev veth_dst_fwd scope global");
 
 	close_netns(nstoken);
 
@@ -240,16 +232,16 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result)
 	if (!ASSERT_OK_PTR(nstoken, "setns dst"))
 		goto fail;
 
-	SYS("ip addr add " IP4_DST "/32 dev veth_dst");
-	SYS("ip addr add " IP6_DST "/128 dev veth_dst nodad");
-	SYS("ip link set dev veth_dst up");
+	SYS(fail, "ip addr add " IP4_DST "/32 dev veth_dst");
+	SYS(fail, "ip addr add " IP6_DST "/128 dev veth_dst nodad");
+	SYS(fail, "ip link set dev veth_dst up");
 
-	SYS("ip route add " IP4_SRC "/32 dev veth_dst scope global");
-	SYS("ip route add " IP4_NET "/16 dev veth_dst scope global");
-	SYS("ip route add " IP6_SRC "/128 dev veth_dst scope global");
+	SYS(fail, "ip route add " IP4_SRC "/32 dev veth_dst scope global");
+	SYS(fail, "ip route add " IP4_NET "/16 dev veth_dst scope global");
+	SYS(fail, "ip route add " IP6_SRC "/128 dev veth_dst scope global");
 
-	SYS("ip neigh add " IP4_SRC " dev veth_dst lladdr " MAC_DST_FWD);
-	SYS("ip neigh add " IP6_SRC " dev veth_dst lladdr " MAC_DST_FWD);
+	SYS(fail, "ip neigh add " IP4_SRC " dev veth_dst lladdr " MAC_DST_FWD);
+	SYS(fail, "ip neigh add " IP6_SRC " dev veth_dst lladdr " MAC_DST_FWD);
 
 	close_netns(nstoken);
 
@@ -262,16 +254,16 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result)
 
 static int netns_load_bpf(void)
 {
-	SYS("tc qdisc add dev veth_src_fwd clsact");
-	SYS("tc filter add dev veth_src_fwd ingress bpf da object-pinned "
+	SYS(fail, "tc qdisc add dev veth_src_fwd clsact");
+	SYS(fail, "tc filter add dev veth_src_fwd ingress bpf da object-pinned "
 	    SRC_PROG_PIN_FILE);
-	SYS("tc filter add dev veth_src_fwd egress bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_src_fwd egress bpf da object-pinned "
 	    CHK_PROG_PIN_FILE);
 
-	SYS("tc qdisc add dev veth_dst_fwd clsact");
-	SYS("tc filter add dev veth_dst_fwd ingress bpf da object-pinned "
+	SYS(fail, "tc qdisc add dev veth_dst_fwd clsact");
+	SYS(fail, "tc filter add dev veth_dst_fwd ingress bpf da object-pinned "
 	    DST_PROG_PIN_FILE);
-	SYS("tc filter add dev veth_dst_fwd egress bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_dst_fwd egress bpf da object-pinned "
 	    CHK_PROG_PIN_FILE);
 
 	return 0;
@@ -330,7 +322,7 @@ static void test_tcp(int family, const char *addr, __u16 port)
 
 static int test_ping(int family, const char *addr)
 {
-	SYS("ip netns exec " NS_SRC " %s " PING_ARGS " %s > /dev/null", ping_command(family), addr);
+	SYS(fail, "ip netns exec " NS_SRC " %s " PING_ARGS " %s > /dev/null", ping_command(family), addr);
 	return 0;
 fail:
 	return -1;
@@ -516,10 +508,10 @@ static int netns_load_dtime_bpf(struct test_tc_dtime *skel)
 		return -1;
 	PIN(egress_host);
 	PIN(ingress_host);
-	SYS("tc qdisc add dev veth_src clsact");
-	SYS("tc filter add dev veth_src ingress bpf da object-pinned "
+	SYS(fail, "tc qdisc add dev veth_src clsact");
+	SYS(fail, "tc filter add dev veth_src ingress bpf da object-pinned "
 	    PIN_FNAME(ingress_host));
-	SYS("tc filter add dev veth_src egress bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_src egress bpf da object-pinned "
 	    PIN_FNAME(egress_host));
 	close_netns(nstoken);
 
@@ -529,10 +521,10 @@ static int netns_load_dtime_bpf(struct test_tc_dtime *skel)
 		return -1;
 	PIN(egress_host);
 	PIN(ingress_host);
-	SYS("tc qdisc add dev veth_dst clsact");
-	SYS("tc filter add dev veth_dst ingress bpf da object-pinned "
+	SYS(fail, "tc qdisc add dev veth_dst clsact");
+	SYS(fail, "tc filter add dev veth_dst ingress bpf da object-pinned "
 	    PIN_FNAME(ingress_host));
-	SYS("tc filter add dev veth_dst egress bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_dst egress bpf da object-pinned "
 	    PIN_FNAME(egress_host));
 	close_netns(nstoken);
 
@@ -544,23 +536,23 @@ static int netns_load_dtime_bpf(struct test_tc_dtime *skel)
 	PIN(egress_fwdns_prio100);
 	PIN(ingress_fwdns_prio101);
 	PIN(egress_fwdns_prio101);
-	SYS("tc qdisc add dev veth_dst_fwd clsact");
-	SYS("tc filter add dev veth_dst_fwd ingress prio 100 bpf da object-pinned "
+	SYS(fail, "tc qdisc add dev veth_dst_fwd clsact");
+	SYS(fail, "tc filter add dev veth_dst_fwd ingress prio 100 bpf da object-pinned "
 	    PIN_FNAME(ingress_fwdns_prio100));
-	SYS("tc filter add dev veth_dst_fwd ingress prio 101 bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_dst_fwd ingress prio 101 bpf da object-pinned "
 	    PIN_FNAME(ingress_fwdns_prio101));
-	SYS("tc filter add dev veth_dst_fwd egress prio 100 bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_dst_fwd egress prio 100 bpf da object-pinned "
 	    PIN_FNAME(egress_fwdns_prio100));
-	SYS("tc filter add dev veth_dst_fwd egress prio 101 bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_dst_fwd egress prio 101 bpf da object-pinned "
 	    PIN_FNAME(egress_fwdns_prio101));
-	SYS("tc qdisc add dev veth_src_fwd clsact");
-	SYS("tc filter add dev veth_src_fwd ingress prio 100 bpf da object-pinned "
+	SYS(fail, "tc qdisc add dev veth_src_fwd clsact");
+	SYS(fail, "tc filter add dev veth_src_fwd ingress prio 100 bpf da object-pinned "
 	    PIN_FNAME(ingress_fwdns_prio100));
-	SYS("tc filter add dev veth_src_fwd ingress prio 101 bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_src_fwd ingress prio 101 bpf da object-pinned "
 	    PIN_FNAME(ingress_fwdns_prio101));
-	SYS("tc filter add dev veth_src_fwd egress prio 100 bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_src_fwd egress prio 100 bpf da object-pinned "
 	    PIN_FNAME(egress_fwdns_prio100));
-	SYS("tc filter add dev veth_src_fwd egress prio 101 bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_src_fwd egress prio 101 bpf da object-pinned "
 	    PIN_FNAME(egress_fwdns_prio101));
 	close_netns(nstoken);
 
@@ -941,7 +933,7 @@ static int tun_open(char *name)
 	if (!ASSERT_OK(err, "ioctl TUNSETIFF"))
 		goto fail;
 
-	SYS("ip link set dev %s up", name);
+	SYS(fail, "ip link set dev %s up", name);
 
 	return fd;
 fail:
@@ -1061,34 +1053,34 @@ static void test_tc_redirect_peer_l3(struct netns_setup_result *setup_result)
 	 * towards dst, and "tc_dst" to redirect packets
 	 * and "tc_chk" on veth_dst_fwd to drop non-redirected packets.
 	 */
-	SYS("tc qdisc add dev tun_fwd clsact");
-	SYS("tc filter add dev tun_fwd ingress bpf da object-pinned "
+	SYS(fail, "tc qdisc add dev tun_fwd clsact");
+	SYS(fail, "tc filter add dev tun_fwd ingress bpf da object-pinned "
 	    SRC_PROG_PIN_FILE);
 
-	SYS("tc qdisc add dev veth_dst_fwd clsact");
-	SYS("tc filter add dev veth_dst_fwd ingress bpf da object-pinned "
+	SYS(fail, "tc qdisc add dev veth_dst_fwd clsact");
+	SYS(fail, "tc filter add dev veth_dst_fwd ingress bpf da object-pinned "
 	    DST_PROG_PIN_FILE);
-	SYS("tc filter add dev veth_dst_fwd egress bpf da object-pinned "
+	SYS(fail, "tc filter add dev veth_dst_fwd egress bpf da object-pinned "
 	    CHK_PROG_PIN_FILE);
 
 	/* Setup route and neigh tables */
-	SYS("ip -netns " NS_SRC " addr add dev tun_src " IP4_TUN_SRC "/24");
-	SYS("ip -netns " NS_FWD " addr add dev tun_fwd " IP4_TUN_FWD "/24");
+	SYS(fail, "ip -netns " NS_SRC " addr add dev tun_src " IP4_TUN_SRC "/24");
+	SYS(fail, "ip -netns " NS_FWD " addr add dev tun_fwd " IP4_TUN_FWD "/24");
 
-	SYS("ip -netns " NS_SRC " addr add dev tun_src " IP6_TUN_SRC "/64 nodad");
-	SYS("ip -netns " NS_FWD " addr add dev tun_fwd " IP6_TUN_FWD "/64 nodad");
+	SYS(fail, "ip -netns " NS_SRC " addr add dev tun_src " IP6_TUN_SRC "/64 nodad");
+	SYS(fail, "ip -netns " NS_FWD " addr add dev tun_fwd " IP6_TUN_FWD "/64 nodad");
 
-	SYS("ip -netns " NS_SRC " route del " IP4_DST "/32 dev veth_src scope global");
-	SYS("ip -netns " NS_SRC " route add " IP4_DST "/32 via " IP4_TUN_FWD
+	SYS(fail, "ip -netns " NS_SRC " route del " IP4_DST "/32 dev veth_src scope global");
+	SYS(fail, "ip -netns " NS_SRC " route add " IP4_DST "/32 via " IP4_TUN_FWD
 	    " dev tun_src scope global");
-	SYS("ip -netns " NS_DST " route add " IP4_TUN_SRC "/32 dev veth_dst scope global");
-	SYS("ip -netns " NS_SRC " route del " IP6_DST "/128 dev veth_src scope global");
-	SYS("ip -netns " NS_SRC " route add " IP6_DST "/128 via " IP6_TUN_FWD
+	SYS(fail, "ip -netns " NS_DST " route add " IP4_TUN_SRC "/32 dev veth_dst scope global");
+	SYS(fail, "ip -netns " NS_SRC " route del " IP6_DST "/128 dev veth_src scope global");
+	SYS(fail, "ip -netns " NS_SRC " route add " IP6_DST "/128 via " IP6_TUN_FWD
 	    " dev tun_src scope global");
-	SYS("ip -netns " NS_DST " route add " IP6_TUN_SRC "/128 dev veth_dst scope global");
+	SYS(fail, "ip -netns " NS_DST " route add " IP6_TUN_SRC "/128 dev veth_dst scope global");
 
-	SYS("ip -netns " NS_DST " neigh add " IP4_TUN_SRC " dev veth_dst lladdr " MAC_DST_FWD);
-	SYS("ip -netns " NS_DST " neigh add " IP6_TUN_SRC " dev veth_dst lladdr " MAC_DST_FWD);
+	SYS(fail, "ip -netns " NS_DST " neigh add " IP4_TUN_SRC " dev veth_dst lladdr " MAC_DST_FWD);
+	SYS(fail, "ip -netns " NS_DST " neigh add " IP6_TUN_SRC " dev veth_dst lladdr " MAC_DST_FWD);
 
 	if (!ASSERT_OK(set_forwarding(false), "disable forwarding"))
 		goto fail;
diff --git a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
index eea274110267..e0823c2472fe 100644
--- a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
+++ b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
@@ -91,30 +91,15 @@
 
 #define PING_ARGS "-i 0.01 -c 3 -w 10 -q"
 
-#define SYS(fmt, ...)						\
-	({							\
-		char cmd[1024];					\
-		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);	\
-		if (!ASSERT_OK(system(cmd), cmd))		\
-			goto fail;				\
-	})
-
-#define SYS_NOFAIL(fmt, ...)					\
-	({							\
-		char cmd[1024];					\
-		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);	\
-		system(cmd);					\
-	})
-
 static int config_device(void)
 {
-	SYS("ip netns add at_ns0");
-	SYS("ip link add veth0 address " MAC_VETH1 " type veth peer name veth1");
-	SYS("ip link set veth0 netns at_ns0");
-	SYS("ip addr add " IP4_ADDR1_VETH1 "/24 dev veth1");
-	SYS("ip link set dev veth1 up mtu 1500");
-	SYS("ip netns exec at_ns0 ip addr add " IP4_ADDR_VETH0 "/24 dev veth0");
-	SYS("ip netns exec at_ns0 ip link set dev veth0 up mtu 1500");
+	SYS(fail, "ip netns add at_ns0");
+	SYS(fail, "ip link add veth0 address " MAC_VETH1 " type veth peer name veth1");
+	SYS(fail, "ip link set veth0 netns at_ns0");
+	SYS(fail, "ip addr add " IP4_ADDR1_VETH1 "/24 dev veth1");
+	SYS(fail, "ip link set dev veth1 up mtu 1500");
+	SYS(fail, "ip netns exec at_ns0 ip addr add " IP4_ADDR_VETH0 "/24 dev veth0");
+	SYS(fail, "ip netns exec at_ns0 ip link set dev veth0 up mtu 1500");
 
 	return 0;
 fail:
@@ -132,23 +117,23 @@ static void cleanup(void)
 static int add_vxlan_tunnel(void)
 {
 	/* at_ns0 namespace */
-	SYS("ip netns exec at_ns0 ip link add dev %s type vxlan external gbp dstport 4789",
+	SYS(fail, "ip netns exec at_ns0 ip link add dev %s type vxlan external gbp dstport 4789",
 	    VXLAN_TUNL_DEV0);
-	SYS("ip netns exec at_ns0 ip link set dev %s address %s up",
+	SYS(fail, "ip netns exec at_ns0 ip link set dev %s address %s up",
 	    VXLAN_TUNL_DEV0, MAC_TUNL_DEV0);
-	SYS("ip netns exec at_ns0 ip addr add dev %s %s/24",
+	SYS(fail, "ip netns exec at_ns0 ip addr add dev %s %s/24",
 	    VXLAN_TUNL_DEV0, IP4_ADDR_TUNL_DEV0);
-	SYS("ip netns exec at_ns0 ip neigh add %s lladdr %s dev %s",
+	SYS(fail, "ip netns exec at_ns0 ip neigh add %s lladdr %s dev %s",
 	    IP4_ADDR_TUNL_DEV1, MAC_TUNL_DEV1, VXLAN_TUNL_DEV0);
-	SYS("ip netns exec at_ns0 ip neigh add %s lladdr %s dev veth0",
+	SYS(fail, "ip netns exec at_ns0 ip neigh add %s lladdr %s dev veth0",
 	    IP4_ADDR2_VETH1, MAC_VETH1);
 
 	/* root namespace */
-	SYS("ip link add dev %s type vxlan external gbp dstport 4789",
+	SYS(fail, "ip link add dev %s type vxlan external gbp dstport 4789",
 	    VXLAN_TUNL_DEV1);
-	SYS("ip link set dev %s address %s up", VXLAN_TUNL_DEV1, MAC_TUNL_DEV1);
-	SYS("ip addr add dev %s %s/24", VXLAN_TUNL_DEV1, IP4_ADDR_TUNL_DEV1);
-	SYS("ip neigh add %s lladdr %s dev %s",
+	SYS(fail, "ip link set dev %s address %s up", VXLAN_TUNL_DEV1, MAC_TUNL_DEV1);
+	SYS(fail, "ip addr add dev %s %s/24", VXLAN_TUNL_DEV1, IP4_ADDR_TUNL_DEV1);
+	SYS(fail, "ip neigh add %s lladdr %s dev %s",
 	    IP4_ADDR_TUNL_DEV0, MAC_TUNL_DEV0, VXLAN_TUNL_DEV1);
 
 	return 0;
@@ -165,26 +150,26 @@ static void delete_vxlan_tunnel(void)
 
 static int add_ip6vxlan_tunnel(void)
 {
-	SYS("ip netns exec at_ns0 ip -6 addr add %s/96 dev veth0",
+	SYS(fail, "ip netns exec at_ns0 ip -6 addr add %s/96 dev veth0",
 	    IP6_ADDR_VETH0);
-	SYS("ip netns exec at_ns0 ip link set dev veth0 up");
-	SYS("ip -6 addr add %s/96 dev veth1", IP6_ADDR1_VETH1);
-	SYS("ip -6 addr add %s/96 dev veth1", IP6_ADDR2_VETH1);
-	SYS("ip link set dev veth1 up");
+	SYS(fail, "ip netns exec at_ns0 ip link set dev veth0 up");
+	SYS(fail, "ip -6 addr add %s/96 dev veth1", IP6_ADDR1_VETH1);
+	SYS(fail, "ip -6 addr add %s/96 dev veth1", IP6_ADDR2_VETH1);
+	SYS(fail, "ip link set dev veth1 up");
 
 	/* at_ns0 namespace */
-	SYS("ip netns exec at_ns0 ip link add dev %s type vxlan external dstport 4789",
+	SYS(fail, "ip netns exec at_ns0 ip link add dev %s type vxlan external dstport 4789",
 	    IP6VXLAN_TUNL_DEV0);
-	SYS("ip netns exec at_ns0 ip addr add dev %s %s/24",
+	SYS(fail, "ip netns exec at_ns0 ip addr add dev %s %s/24",
 	    IP6VXLAN_TUNL_DEV0, IP4_ADDR_TUNL_DEV0);
-	SYS("ip netns exec at_ns0 ip link set dev %s address %s up",
+	SYS(fail, "ip netns exec at_ns0 ip link set dev %s address %s up",
 	    IP6VXLAN_TUNL_DEV0, MAC_TUNL_DEV0);
 
 	/* root namespace */
-	SYS("ip link add dev %s type vxlan external dstport 4789",
+	SYS(fail, "ip link add dev %s type vxlan external dstport 4789",
 	    IP6VXLAN_TUNL_DEV1);
-	SYS("ip addr add dev %s %s/24", IP6VXLAN_TUNL_DEV1, IP4_ADDR_TUNL_DEV1);
-	SYS("ip link set dev %s address %s up",
+	SYS(fail, "ip addr add dev %s %s/24", IP6VXLAN_TUNL_DEV1, IP4_ADDR_TUNL_DEV1);
+	SYS(fail, "ip link set dev %s address %s up",
 	    IP6VXLAN_TUNL_DEV1, MAC_TUNL_DEV1);
 
 	return 0;
@@ -205,7 +190,7 @@ static void delete_ip6vxlan_tunnel(void)
 
 static int test_ping(int family, const char *addr)
 {
-	SYS("%s %s %s > /dev/null", ping_command(family), PING_ARGS, addr);
+	SYS(fail, "%s %s %s > /dev/null", ping_command(family), PING_ARGS, addr);
 	return 0;
 fail:
 	return -1;
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_bonding.c b/tools/testing/selftests/bpf/prog_tests/xdp_bonding.c
index 5e3a26b15ec6..d19f79048ff6 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_bonding.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_bonding.c
@@ -141,41 +141,33 @@ static const char * const xmit_policy_names[] = {
 static int bonding_setup(struct skeletons *skeletons, int mode, int xmit_policy,
 			 int bond_both_attach)
 {
-#define SYS(fmt, ...)						\
-	({							\
-		char cmd[1024];					\
-		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);	\
-		if (!ASSERT_OK(system(cmd), cmd))		\
-			return -1;				\
-	})
+	SYS(fail, "ip netns add ns_dst");
+	SYS(fail, "ip link add veth1_1 type veth peer name veth2_1 netns ns_dst");
+	SYS(fail, "ip link add veth1_2 type veth peer name veth2_2 netns ns_dst");
 
-	SYS("ip netns add ns_dst");
-	SYS("ip link add veth1_1 type veth peer name veth2_1 netns ns_dst");
-	SYS("ip link add veth1_2 type veth peer name veth2_2 netns ns_dst");
-
-	SYS("ip link add bond1 type bond mode %s xmit_hash_policy %s",
+	SYS(fail, "ip link add bond1 type bond mode %s xmit_hash_policy %s",
 	    mode_names[mode], xmit_policy_names[xmit_policy]);
-	SYS("ip link set bond1 up address " BOND1_MAC_STR " addrgenmode none");
-	SYS("ip -netns ns_dst link add bond2 type bond mode %s xmit_hash_policy %s",
+	SYS(fail, "ip link set bond1 up address " BOND1_MAC_STR " addrgenmode none");
+	SYS(fail, "ip -netns ns_dst link add bond2 type bond mode %s xmit_hash_policy %s",
 	    mode_names[mode], xmit_policy_names[xmit_policy]);
-	SYS("ip -netns ns_dst link set bond2 up address " BOND2_MAC_STR " addrgenmode none");
+	SYS(fail, "ip -netns ns_dst link set bond2 up address " BOND2_MAC_STR " addrgenmode none");
 
-	SYS("ip link set veth1_1 master bond1");
+	SYS(fail, "ip link set veth1_1 master bond1");
 	if (bond_both_attach == BOND_BOTH_AND_ATTACH) {
-		SYS("ip link set veth1_2 master bond1");
+		SYS(fail, "ip link set veth1_2 master bond1");
 	} else {
-		SYS("ip link set veth1_2 up addrgenmode none");
+		SYS(fail, "ip link set veth1_2 up addrgenmode none");
 
 		if (xdp_attach(skeletons, skeletons->xdp_dummy->progs.xdp_dummy_prog, "veth1_2"))
 			return -1;
 	}
 
-	SYS("ip -netns ns_dst link set veth2_1 master bond2");
+	SYS(fail, "ip -netns ns_dst link set veth2_1 master bond2");
 
 	if (bond_both_attach == BOND_BOTH_AND_ATTACH)
-		SYS("ip -netns ns_dst link set veth2_2 master bond2");
+		SYS(fail, "ip -netns ns_dst link set veth2_2 master bond2");
 	else
-		SYS("ip -netns ns_dst link set veth2_2 up addrgenmode none");
+		SYS(fail, "ip -netns ns_dst link set veth2_2 up addrgenmode none");
 
 	/* Load a dummy program on sending side as with veth peer needs to have a
 	 * XDP program loaded as well.
@@ -194,8 +186,8 @@ static int bonding_setup(struct skeletons *skeletons, int mode, int xmit_policy,
 	}
 
 	return 0;
-
-#undef SYS
+fail:
+	return -1;
 }
 
 static void bonding_cleanup(struct skeletons *skeletons)
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c b/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c
index 15ad33669161..b97b08181772 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c
@@ -10,14 +10,6 @@
 #include <bpf/bpf_endian.h>
 #include "test_xdp_do_redirect.skel.h"
 
-#define SYS(fmt, ...)						\
-	({							\
-		char cmd[1024];					\
-		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);	\
-		if (!ASSERT_OK(system(cmd), cmd))		\
-			goto out;				\
-	})
-
 struct udp_packet {
 	struct ethhdr eth;
 	struct ipv6hdr iph;
@@ -124,19 +116,19 @@ void serial_test_xdp_do_redirect(void)
 	 * iface and NUM_PKTS-2 in the TC hook. We match the packets on the UDP
 	 * payload.
 	 */
-	SYS("ip netns add testns");
+	SYS(out, "ip netns add testns");
 	nstoken = open_netns("testns");
 	if (!ASSERT_OK_PTR(nstoken, "setns"))
 		goto out;
 
-	SYS("ip link add veth_src type veth peer name veth_dst");
-	SYS("ip link set dev veth_src address 00:11:22:33:44:55");
-	SYS("ip link set dev veth_dst address 66:77:88:99:aa:bb");
-	SYS("ip link set dev veth_src up");
-	SYS("ip link set dev veth_dst up");
-	SYS("ip addr add dev veth_src fc00::1/64");
-	SYS("ip addr add dev veth_dst fc00::2/64");
-	SYS("ip neigh add fc00::2 dev veth_src lladdr 66:77:88:99:aa:bb");
+	SYS(out, "ip link add veth_src type veth peer name veth_dst");
+	SYS(out, "ip link set dev veth_src address 00:11:22:33:44:55");
+	SYS(out, "ip link set dev veth_dst address 66:77:88:99:aa:bb");
+	SYS(out, "ip link set dev veth_src up");
+	SYS(out, "ip link set dev veth_dst up");
+	SYS(out, "ip addr add dev veth_src fc00::1/64");
+	SYS(out, "ip addr add dev veth_dst fc00::2/64");
+	SYS(out, "ip neigh add fc00::2 dev veth_src lladdr 66:77:88:99:aa:bb");
 
 	/* We enable forwarding in the test namespace because that will cause
 	 * the packets that go through the kernel stack (with XDP_PASS) to be
@@ -149,7 +141,7 @@ void serial_test_xdp_do_redirect(void)
 	 * code didn't have this, so we keep the test behaviour to make sure the
 	 * bug doesn't resurface.
 	 */
-	SYS("sysctl -qw net.ipv6.conf.all.forwarding=1");
+	SYS(out, "sysctl -qw net.ipv6.conf.all.forwarding=1");
 
 	ifindex_src = if_nametoindex("veth_src");
 	ifindex_dst = if_nametoindex("veth_dst");
@@ -200,6 +192,6 @@ void serial_test_xdp_do_redirect(void)
 out:
 	if (nstoken)
 		close_netns(nstoken);
-	system("ip netns del testns");
+	SYS_NOFAIL("ip netns del testns");
 	test_xdp_do_redirect__destroy(skel);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c b/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c
index 13daa3746064..0327c10fe6e9 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c
@@ -8,11 +8,6 @@
 
 #define CMD_OUT_BUF_SIZE 1023
 
-#define SYS(cmd) ({ \
-	if (!ASSERT_OK(system(cmd), (cmd))) \
-		goto out; \
-})
-
 #define SYS_OUT(cmd, ...) ({ \
 	char buf[1024]; \
 	snprintf(buf, sizeof(buf), (cmd), ##__VA_ARGS__); \
@@ -69,37 +64,37 @@ static void test_synproxy(bool xdp)
 	char buf[CMD_OUT_BUF_SIZE];
 	size_t size;
 
-	SYS("ip netns add synproxy");
+	SYS(out, "ip netns add synproxy");
 
-	SYS("ip link add tmp0 type veth peer name tmp1");
-	SYS("ip link set tmp1 netns synproxy");
-	SYS("ip link set tmp0 up");
-	SYS("ip addr replace 198.18.0.1/24 dev tmp0");
+	SYS(out, "ip link add tmp0 type veth peer name tmp1");
+	SYS(out, "ip link set tmp1 netns synproxy");
+	SYS(out, "ip link set tmp0 up");
+	SYS(out, "ip addr replace 198.18.0.1/24 dev tmp0");
 
 	/* When checksum offload is enabled, the XDP program sees wrong
 	 * checksums and drops packets.
 	 */
-	SYS("ethtool -K tmp0 tx off");
+	SYS(out, "ethtool -K tmp0 tx off");
 	if (xdp)
 		/* Workaround required for veth. */
-		SYS("ip link set tmp0 xdp object xdp_dummy.bpf.o section xdp 2> /dev/null");
+		SYS(out, "ip link set tmp0 xdp object xdp_dummy.bpf.o section xdp 2> /dev/null");
 
 	ns = open_netns("synproxy");
 	if (!ASSERT_OK_PTR(ns, "setns"))
 		goto out;
 
-	SYS("ip link set lo up");
-	SYS("ip link set tmp1 up");
-	SYS("ip addr replace 198.18.0.2/24 dev tmp1");
-	SYS("sysctl -w net.ipv4.tcp_syncookies=2");
-	SYS("sysctl -w net.ipv4.tcp_timestamps=1");
-	SYS("sysctl -w net.netfilter.nf_conntrack_tcp_loose=0");
-	SYS("iptables-legacy -t raw -I PREROUTING \
+	SYS(out, "ip link set lo up");
+	SYS(out, "ip link set tmp1 up");
+	SYS(out, "ip addr replace 198.18.0.2/24 dev tmp1");
+	SYS(out, "sysctl -w net.ipv4.tcp_syncookies=2");
+	SYS(out, "sysctl -w net.ipv4.tcp_timestamps=1");
+	SYS(out, "sysctl -w net.netfilter.nf_conntrack_tcp_loose=0");
+	SYS(out, "iptables-legacy -t raw -I PREROUTING \
 	    -i tmp1 -p tcp -m tcp --syn --dport 8080 -j CT --notrack");
-	SYS("iptables-legacy -t filter -A INPUT \
+	SYS(out, "iptables-legacy -t filter -A INPUT \
 	    -i tmp1 -p tcp -m tcp --dport 8080 -m state --state INVALID,UNTRACKED \
 	    -j SYNPROXY --sack-perm --timestamp --wscale 7 --mss 1460");
-	SYS("iptables-legacy -t filter -A INPUT \
+	SYS(out, "iptables-legacy -t filter -A INPUT \
 	    -i tmp1 -m state --state INVALID -j DROP");
 
 	ctrl_file = SYS_OUT("./xdp_synproxy --iface tmp1 --ports 8080 \
@@ -170,8 +165,8 @@ static void test_synproxy(bool xdp)
 	if (ns)
 		close_netns(ns);
 
-	system("ip link del tmp0");
-	system("ip netns del synproxy");
+	SYS_NOFAIL("ip link del tmp0");
+	SYS_NOFAIL("ip netns del synproxy");
 }
 
 void serial_test_xdp_synproxy(void)
diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h
index ff1caffefa52..b47606eebdb9 100644
--- a/tools/testing/selftests/bpf/test_progs.h
+++ b/tools/testing/selftests/bpf/test_progs.h
@@ -376,6 +376,21 @@ int test__join_cgroup(const char *path);
 	___ok;								\
 })
 
+#define SYS(goto_label, fmt, ...)					\
+	({								\
+		char cmd[1024];						\
+		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);		\
+		if (!ASSERT_OK(system(cmd), cmd))			\
+			goto goto_label;				\
+	})
+
+#define SYS_NOFAIL(fmt, ...)						\
+	({								\
+		char cmd[1024];						\
+		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);		\
+		system(cmd);						\
+	})
+
 static inline __u64 ptr_to_u64(const void *ptr)
 {
 	return (__u64) (unsigned long) ptr;
diff --git a/tools/testing/selftests/bpf/testing_helpers.h b/tools/testing/selftests/bpf/testing_helpers.h
index f72fb24f8e90..ba4f205e7bc7 100644
--- a/tools/testing/selftests/bpf/testing_helpers.h
+++ b/tools/testing/selftests/bpf/testing_helpers.h
@@ -7,6 +7,7 @@
 #include <stdbool.h>
 #include <bpf/bpf.h>
 #include <bpf/libbpf.h>
+#include <time.h>
 
 int parse_num_list(const char *s, bool **set, int *set_len);
 __u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info);
@@ -30,4 +31,13 @@ int load_bpf_testmod(bool verbose);
 void unload_bpf_testmod(bool verbose);
 int kern_sync_rcu(void);
 
+static inline __u64 get_time_ns(void)
+{
+	struct timespec t;
+
+	clock_gettime(CLOCK_MONOTONIC, &t);
+
+	return (u64)t.tv_sec * 1000000000 + t.tv_nsec;
+}
+
 #endif /* __TESTING_HELPERS_H */
diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c
index 7030bae8e5e0..14b975594c88 100644
--- a/tools/testing/selftests/ptp/testptp.c
+++ b/tools/testing/selftests/ptp/testptp.c
@@ -121,7 +121,6 @@ static void usage(char *progname)
 		" -d name    device to open\n"
 		" -e val     read 'val' external time stamp events\n"
 		" -f val     adjust the ptp clock frequency by 'val' ppb\n"
-		" -F chan    Enable single channel mask and keep device open for debugfs verification.\n"
 		" -g         get the ptp clock time\n"
 		" -h         prints this message\n"
 		" -i val     index for event/trigger\n"
@@ -190,7 +189,6 @@ int main(int argc, char *argv[])
 	int seconds = 0;
 	int readonly = 0;
 	int settime = 0;
-	int channel = -1;
 
 	int64_t t1, t2, tp;
 	int64_t interval, offset;
@@ -200,7 +198,7 @@ int main(int argc, char *argv[])
 
 	progname = strrchr(argv[0], '/');
 	progname = progname ? 1+progname : argv[0];
-	while (EOF != (c = getopt(argc, argv, "cd:e:f:F:ghH:i:k:lL:n:o:p:P:rsSt:T:w:x:Xz"))) {
+	while (EOF != (c = getopt(argc, argv, "cd:e:f:ghH:i:k:lL:n:o:p:P:rsSt:T:w:x:Xz"))) {
 		switch (c) {
 		case 'c':
 			capabilities = 1;
@@ -214,9 +212,6 @@ int main(int argc, char *argv[])
 		case 'f':
 			adjfreq = atoi(optarg);
 			break;
-		case 'F':
-			channel = atoi(optarg);
-			break;
 		case 'g':
 			gettime = 1;
 			break;
@@ -616,18 +611,6 @@ int main(int argc, char *argv[])
 		free(xts);
 	}
 
-	if (channel >= 0) {
-		if (ioctl(fd, PTP_MASK_CLEAR_ALL)) {
-			perror("PTP_MASK_CLEAR_ALL");
-		} else if (ioctl(fd, PTP_MASK_EN_SINGLE, (unsigned int *)&channel)) {
-			perror("PTP_MASK_EN_SINGLE");
-		} else {
-			printf("Channel %d exclusively enabled. Check on debugfs.\n", channel);
-			printf("Press any key to continue\n.");
-			getchar();
-		}
-	}
-
 	close(fd);
 	return 0;
 }
