[PATCH 5.10 CANDIDATE v2 4/7] xfs: ensure xfs_errortag_random_default matches XFS_ERRTAG_MAX

From: Amir Goldstein <amir73il@gmail.com>
To: "Darrick J . Wong" <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>,
	Leah Rumancik <leah.rumancik@gmail.com>,
	Chandan Babu R <chandan.babu@oracle.com>,
	Luis Chamberlain <mcgrof@kernel.org>,
	linux-xfs@vger.kernel.org, fstests@vger.kernel.org,
	Gao Xiang <hsiangkao@redhat.com>, Christoph Hellwig <hch@lst.de>
Subject: [PATCH 5.10 CANDIDATE v2 4/7] xfs: ensure xfs_errortag_random_default matches XFS_ERRTAG_MAX
Date: Mon, 27 Jun 2022 10:33:08 +0300	[thread overview]
Message-ID: <20220627073311.2800330-5-amir73il@gmail.com> (raw)
In-Reply-To: <20220627073311.2800330-1-amir73il@gmail.com>

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>
---
 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

