For CONFIG_XFS_DEBUG unset, xfs_trans_unreserve_and_mod_sb() generates the
following warning for when building with W=1:
CC fs/xfs/xfs_trans.o
fs/xfs/xfs_trans.c: In function ‘xfs_trans_unreserve_and_mod_sb’:
fs/xfs/xfs_trans.c:601:17: error: variable ‘error’ set but not used [-Werror=unused-but-set-variable]
601 | int error;
| ^~~~~
cc1: all warnings being treated as errors
Mark ret as __maybe_unused to clear the warning.
Signed-off-by: John Garry <john.g.garry@xxxxxxxxxx>
---
fs/xfs/xfs_trans.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 7350640059cc..46674a9b1c97 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -598,7 +598,7 @@ xfs_trans_unreserve_and_mod_sb(
int64_t rtxdelta = 0;
int64_t idelta = 0;
int64_t ifreedelta = 0;
- int error;
+ int __maybe_unused error;
/* calculate deltas */
if (tp->t_blk_res > 0)
--
2.31.1
