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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/xfs/xfs_error.c | 2 ++ 1 file changed, 2 insertions(+)
--- 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;