Commit 0ab7cdd0 authored by John Ogness's avatar John Ogness Committed by Petr Mladek
Browse files

printk: For @suppress_panic_printk check for other CPU in panic 



Currently @suppress_panic_printk is checked along with
non-matching @panic_cpu and current CPU. This works
because @suppress_panic_printk is only set when
panic_in_progress() is true.

Rather than relying on the @suppress_panic_printk semantics,
use the concise helper function other_cpu_in_progress(). The
helper function exists to avoid open coding such tests.

Signed-off-by: default avatarJohn Ogness <john.ogness@linutronix.de>
Reviewed-by: default avatarPetr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240207134103.1357162-7-john.ogness@linutronix.de


Signed-off-by: default avatarPetr Mladek <pmladek@suse.com>
parent 5113cf5f

kernel/printk/printk.c

+1 −2
Original line number Diff line number Diff line
@@ -2270,8 +2270,7 @@ asmlinkage int vprintk_emit(int facility, int level, 
	if (unlikely(suppress_printk))

		return 0;



	if (unlikely(suppress_panic_printk) &&

	    atomic_read(&panic_cpu) != raw_smp_processor_id())

	if (unlikely(suppress_panic_printk) && other_cpu_in_panic())

		return 0;



	if (level == LOGLEVEL_SCHED) {