Re: [PATCH -next] btrfs: remove set but not used variable 'offset'

[Anand Jain]

On 2/7/19 10:15 PM, YueHaibing wrote:

Fixes gcc '-Wunused-but-set-variable' warning:

fs/btrfs/volumes.c: In function __btrfs_map_block:
fs/btrfs/volumes.c:6023:6: warning:
  variable offset set but not used [-Wunused-but-set-variable]

It is not used any more since commit 343abd1c0ca9 ("btrfs: Use
btrfs_get_io_geometry appropriately")

Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: YueHaibing <yuehaib...@huawei.com>

Reviewed-by: Anand Jain <anand.j...@oracle.com>

---
  fs/btrfs/volumes.c | 2 --
  1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index d1fd910..5d5a9ff 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6020,7 +6020,6 @@ static int __btrfs_map_block(struct btrfs_fs_info 
*fs_info,
  {
        struct extent_map *em;
        struct map_lookup *map;
-       u64 offset;
        u64 stripe_offset;
        u64 stripe_nr;
        u64 stripe_len;
@@ -6055,7 +6054,6 @@ static int __btrfs_map_block(struct btrfs_fs_info 
*fs_info,
        map = em->map_lookup;

*length = geom.len;

-       offset = geom.offset;
        stripe_len = geom.stripe_len;
        stripe_nr = geom.stripe_nr;
        stripe_offset = geom.stripe_offset;