<dec f='src/src/sys/sys/systm.h' l='170' type='void * nullret()'/>
<def f='src/src/sys/kern/kern_stub.c' l='283' ll='288' type='void * nullret()'/>
<doc f='src/src/sys/kern/kern_stub.c' l='280'>/*
 * Generic null operation, always returns null.
 */</doc>
