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

From: Zeng Heng
Date: Wed Oct 23 2024 - 05:35:17 EST


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@xxxxxxxxxx>
---
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