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authorSu Hui <suhui@nfschina.com>2023-10-08 09:39:30 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2023-10-09 20:58:43 +0300
commite0d4e8acb3789c5a8651061fbab62ca24a45c063 (patch)
treea14e50fd993ba51101c416c2fdca8e150325f1ef /fs/f2fs
parent8b07c1fb0f1ad139373c8253f2fad8bc43fab07d (diff)
downloadlinux-e0d4e8acb3789c5a8651061fbab62ca24a45c063.tar.xz
f2fs: avoid format-overflow warning
With gcc and W=1 option, there's a warning like this: fs/f2fs/compress.c: In function ‘f2fs_init_page_array_cache’: fs/f2fs/compress.c:1984:47: error: ‘%u’ directive writing between 1 and 7 bytes into a region of size between 5 and 8 [-Werror=format-overflow=] 1984 | sprintf(slab_name, "f2fs_page_array_entry-%u:%u", MAJOR(dev), MINOR(dev)); | ^~ String "f2fs_page_array_entry-%u:%u" can up to 35. The first "%u" can up to 4 and the second "%u" can up to 7, so total size is "24 + 4 + 7 = 35". slab_name's size should be 35 rather than 32. Cc: stable@vger.kernel.org Signed-off-by: Su Hui <suhui@nfschina.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/compress.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 0c41647a2381..36e5dab6baae 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1983,7 +1983,7 @@ void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi)
int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi)
{
dev_t dev = sbi->sb->s_bdev->bd_dev;
- char slab_name[32];
+ char slab_name[35];
if (!f2fs_sb_has_compression(sbi))
return 0;