[PATCH V2 4/4] xtensa: hibernate: remove WARN_ON in save_processor_state

[Song Shuai]

During hibernation or restoration, freeze_secondary_cpus
checks num_online_cpus via BUG_ON, and the subsequent
save_processor_state also does the checking with WARN_ON.

In the case of CONFIG_PM_SLEEP_SMP=n, freeze_secondary_cpus
is not defined, but the sole possible condition to disable
CONFIG_PM_SLEEP_SMP is !SMP where num_online_cpus is always 1.
We also don't have to check it in save_processor_state.

So remove the unnecessary checking in save_processor_state.

Signed-off-by: Song Shuai <songshuaishuai at tinylab.org>
---
 arch/xtensa/kernel/hibernate.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/xtensa/kernel/hibernate.c b/arch/xtensa/kernel/hibernate.c
index 06984327d6e2..314602bbf431 100644
--- a/arch/xtensa/kernel/hibernate.c
+++ b/arch/xtensa/kernel/hibernate.c
@@ -14,7 +14,6 @@ int pfn_is_nosave(unsigned long pfn)
 
 void notrace save_processor_state(void)
 {
-	WARN_ON(num_online_cpus() != 1);
 #if XTENSA_HAVE_COPROCESSORS
 	local_coprocessors_flush_release_all();
 #endif
-- 
2.20.1