[PATCH] f2fs: Fix not used variable 'index'

[PATCH] f2fs: Fix not used variable 'index'

[Zeng Heng]

Fix the following compilation warning:
fs/f2fs/data.c:2391:10: warning: variable ‘index’ set but not used
[-Wunused-but-set-variable]
 2391 |  pgoff_t index;

Only define and set the variable index when the CONFIG_F2FS_FS_COMPRESSION
is enabled.

Fixes: db92e6c729d8 ("f2fs: convert f2fs_mpage_readpages() to use folio")
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
---
 fs/f2fs/data.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 94f7b084f601..9202082a3902 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2385,10 +2385,10 @@ static int f2fs_mpage_readpages(struct inode *inode,
 		.nr_cpages = 0,
 	};
 	pgoff_t nc_cluster_idx = NULL_CLUSTER;
+	pgoff_t index;
 #endif
 	unsigned nr_pages = rac ? readahead_count(rac) : 1;
 	unsigned max_nr_pages = nr_pages;
-	pgoff_t index;
 	int ret = 0;
 
 	map.m_pblk = 0;
@@ -2406,9 +2406,9 @@ static int f2fs_mpage_readpages(struct inode *inode,
 			prefetchw(&folio->flags);
 		}
 
+#ifdef CONFIG_F2FS_FS_COMPRESSION
 		index = folio_index(folio);
 
-#ifdef CONFIG_F2FS_FS_COMPRESSION
 		if (!f2fs_compressed_file(inode))
 			goto read_single_page;
 
-- 
2.25.1

Re: [PATCH] f2fs: Fix not used variable 'index'

[Chao Yu]

On 2024/10/23 17:48, Zeng Heng wrote:
> Fix the following compilation warning:
> fs/f2fs/data.c:2391:10: warning: variable ‘index’ set but not used
> [-Wunused-but-set-variable]
>   2391 |  pgoff_t index;
> 
> Only define and set the variable index when the CONFIG_F2FS_FS_COMPRESSION
> is enabled.
> 
> Fixes: db92e6c729d8 ("f2fs: convert f2fs_mpage_readpages() to use folio")
> Signed-off-by: Zeng Heng <zengheng4@huawei.com>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,

Re: [f2fs-dev] [PATCH] f2fs: Fix not used variable 'index'

[patchwork-bot+f2fs]

Hello:

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

On Wed, 23 Oct 2024 17:48:50 +0800 you wrote:
> Fix the following compilation warning:
> fs/f2fs/data.c:2391:10: warning: variable ‘index’ set but not used
> [-Wunused-but-set-variable]
>  2391 |  pgoff_t index;
> 
> Only define and set the variable index when the CONFIG_F2FS_FS_COMPRESSION
> is enabled.
> 
> [...]

Here is the summary with links:
  - [f2fs-dev] f2fs: Fix not used variable 'index'
    https://git.kernel.org/jaegeuk/f2fs/c/0c3a38a4b442

You are awesome, thank you!
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