[PATCH v2 4/4] panic: avoid duplicate all CPU backtraces from sys_info

[Bradley Morgan <include@grrlz.net>]

panic_other_cpus_shutdown() handles SYS_INFO_ALL_BT before stopping the
other CPUs. Do not ask sys_info() to handle that bit again later in the
panic path.

Use sys_info_without_all_bt() so panic_print=all_bt does not request more
output after the CPUs are stopped.

Fixes: b76e89e50fc3 ("panic: generalize panic_print's function to show sys info")
Cc: stable@vger.kernel.org
Signed-off-by: Bradley Morgan <include@grrlz.net>
---
Changes since v1:
- New patch using the same helper for panic.

 kernel/panic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/panic.c b/kernel/panic.c
index d030f88ad4ef..2cf229c7c0cf 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -683,7 +683,7 @@ void vpanic(const char *fmt, va_list args)
 	 */
 	atomic_notifier_call_chain(&panic_notifier_list, 0, buf);
 
-	sys_info(panic_print);
+	sys_info_without_all_bt(panic_print);
 
 	kmsg_dump_desc(KMSG_DUMP_PANIC, buf);
 
-- 
2.53.0