Re: [PATCH] btrfs: fix uninitialized warning in btrfs_log_inode

[David Sterba]

On Tue, May 16, 2023 at 09:34:30AM +0800, zhangshida wrote:
> From: Shida Zhang <zhangshida@xxxxxxxxxx>
> 
> From: Shida Zhang <zhangshida@xxxxxxxxxx>
> 
> This fixes the following warning reported by gcc 10 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;
>       |      ^~~~~~~~~~~~~~~~
> 
> Reported-by: k2ci <kernel-bot@xxxxxxxxxx>
> Signed-off-by: Shida Zhang <zhangshida@xxxxxxxxxx>

Added to misc-next, thanks.