This is a note to let you know that I've just added the patch titled
btrfs: fix an uninitialized variable warning in btrfs_log_inode
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
btrfs-fix-an-uninitialized-variable-warning-in-btrfs.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 51e6dfc51c4642fd416fb5423e42b264dea50ac3
Author: Shida Zhang <zhangshida@xxxxxxxxxx>
Date: Tue May 16 09:34:30 2023 +0800
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@xxxxxxxxxx>
Reviewed-by: Anand Jain <anand.jain@xxxxxxxxxx>
Signed-off-by: Shida Zhang <zhangshida@xxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index e71464c0e4667..00be69ce7b90f 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;
