2023-05-25 02:59:20

by Song Shuai

[permalink] [raw]
Subject: [PATCH 3/4] riscv: hibernate: remove WARN_ON in save_processor_state

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.

So remove the unnecessary checking in save_processor_state.

Signed-off-by: Song Shuai <[email protected]>
---
arch/riscv/kernel/hibernate.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/arch/riscv/kernel/hibernate.c b/arch/riscv/kernel/hibernate.c
index 395f835f067c..86f1c9ab6b0b 100644
--- a/arch/riscv/kernel/hibernate.c
+++ b/arch/riscv/kernel/hibernate.c
@@ -119,7 +119,6 @@ int pfn_is_nosave(unsigned long pfn)

void notrace save_processor_state(void)
{
- WARN_ON(num_online_cpus() != 1);
}

void notrace restore_processor_state(void)
--
2.20.1