On Sun, Jan 24, 2021 at 06:03:21PM +0200, Nikolay Borisov wrote:

This fixes fs/btrfs/zoned.c:491:6: warning: variable ‘zone_size’ set but not used [-Wunused-but-set-variable]
  491 |  u64 zone_size;

Which got introduced in 12659251ca5d ("btrfs: implement log-structured superblock for ZONED mode")

Signed-off-by: Nikolay Borisov <redacted>

With updated subject and changelog added to misc-next, thanks.