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| author | Shida Zhang <zhangshida@kylinos.cn> | 2023-05-16 09:34:30 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-28 11:12:36 +0200 |
| commit | 3f6391062d0b58eceba54b7819658f85f51f3607 (patch) | |
| tree | 9cebc18e34908a4ceca89d38128a08462b7b25c7 | |
| parent | a2c3e9bfc02c01cfe7700741fe1c60af731e2b2e (diff) | |
| download | linux-stable-3f6391062d0b58eceba54b7819658f85f51f3607.tar.gz linux-stable-3f6391062d0b58eceba54b7819658f85f51f3607.tar.bz2 linux-stable-3f6391062d0b58eceba54b7819658f85f51f3607.zip | |
btrfs: fix an uninitialized variable warning in btrfs_log_inode
[ Upstream commit 8fd9f4232d8152c650fd15127f533a0f6d0a4b2b ]
This fixes the following warning reported by gcc 10.2.1 under x86_64:
../fs/btrfs/tree-log.c: In function ‘btrfs_log_inode’:
../fs/btrfs/tree-log.c:6211:9: error: ‘last_range_start’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
6211 | ret = insert_dir_log_key(trans, log, path, key.objectid,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6212 | first_dir_index, last_dir_index);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../fs/btrfs/tree-log.c:6161:6: note: ‘last_range_start’ was declared here
6161 | u64 last_range_start;
| ^~~~~~~~~~~~~~~~
This might be a false positive fixed in later compiler versions but we
want to have it fixed.
Reported-by: k2ci <kernel-bot@kylinos.cn>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Shida Zhang <zhangshida@kylinos.cn>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/btrfs/tree-log.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index e71464c0e466..00be69ce7b90 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -6205,7 +6205,7 @@ static int log_delayed_deletions_incremental(struct btrfs_trans_handle *trans, { struct btrfs_root *log = inode->root->log_root; const struct btrfs_delayed_item *curr; - u64 last_range_start; + u64 last_range_start = 0; u64 last_range_end = 0; struct btrfs_key key; |