hot_data_age_threshold is a non-zero positive number, and
condition 2 includes condition 1, so there is no need to
additionally judge whether t is 0. And let's remove it.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 fs/f2fs/sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index e396851a6dd1..3c6425f9ed0a 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -689,7 +689,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
 	}
 
 	if (!strcmp(a->attr.name, "warm_data_age_threshold")) {
-		if (t == 0 || t <= sbi->hot_data_age_threshold)
+		if (t <= sbi->hot_data_age_threshold)
 			return -EINVAL;
 		if (t == *ui)
 			return count;
-- 
2.25.1

Hello:

This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@kernel.org>:

On Tue, 17 Jan 2023 21:24:42 +0800 you wrote:
> hot_data_age_threshold is a non-zero positive number, and
> condition 2 includes condition 1, so there is no need to
> additionally judge whether t is 0. And let's remove it.
> 
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
> ---
>  fs/f2fs/sysfs.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Here is the summary with links:
  - [f2fs-dev,v2] f2fs: fix to check warm_data_age_threshold
    https://git.kernel.org/jaegeuk/f2fs/c/3d41b70411d0

You are awesome, thank you!
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