[PATCH 5.10 v3 4/7] xfs: ensure xfs_errortag_random_default matches XFS_ERRTAG_MAX

Amir Goldstein
2022-07-03T05:05:13Z

From: Gao Xiang <hsiangkao@redhat.com>

commit b2c2974b8cdf1eb3ef90ff845eb27b19e2187b7e upstream.

Add the BUILD_BUG_ON to xfs_errortag_add() in order to make sure that
the length of xfs_errortag_random_default matches XFS_ERRTAG_MAX when
building.

Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
---
fs/xfs/xfs_error.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 7f6e20899473..f9e2f606b5b8 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -293,6 +293,8 @@ xfs_errortag_add(
struct xfs_mount *mp,
unsigned int error_tag)
{
+ BUILD_BUG_ON(ARRAY_SIZE(xfs_errortag_random_default) != XFS_ERRTAG_MAX);
+
if (error_tag >= XFS_ERRTAG_MAX)
return -EINVAL;

--
2.25.1