system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-07-22 19:21:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

lockdep: Noinstr annotate warn_bogus_irq_restore()

Browse source 
vmlinux.o: warning: objtool: lock_is_held_type()+0x107: call to warn_bogus_irq_restore() leaves .noinstr.text section

As per the general rule that WARNs are allowed to violate noinstr to
get out, annotate it away.

Fixes: 997acaf6b4 ("lockdep: report broken irq restoration")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Link: https://lkml.kernel.org/r/YCKyYg53mMp4E7YI@hirez.programming.kicks-ass.net
This commit is contained in:
Peter Zijlstra 2021-02-09 09:30:03 +01:00
parent 7f82e631d2
commit c8cc7e8531
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
kernel/locking/irqflag-debug.c
View file

@ -4,8 +4,10 @@
#include <linux/export.h>
#include <linux/irqflags.h>
void warn_bogus_irq_restore(void)
noinstr void warn_bogus_irq_restore(void)
{
instrumentation_begin();
WARN_ONCE(1, "raw_local_irq_restore() called with IRQs enabled\n");
instrumentation_end();
}
EXPORT_SYMBOL(warn_bogus_irq_restore);