xfs: remove xfs_errortag_get

xfs_errortag_get is only called by xfs_errortag_attr_show, which does not
need to validate the error tag, because it can only be called on valid
error tags that had a sysfs attribute registered.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

Author: Christoph Hellwig

fs/xfs/xfs_error.c

@@ -118,10 +118,9 @@ xfs_errortag_attr_show(
 	char			*buf)
 {
 	struct xfs_mount	*mp = to_mp(kobject);
-	struct xfs_errortag_attr *xfs_attr = to_attr(attr);
+	unsigned int		error_tag = to_attr(attr)->tag;
 
-	return snprintf(buf, PAGE_SIZE, "%u\n",
-			xfs_errortag_get(mp, xfs_attr->tag));
+	return snprintf(buf, PAGE_SIZE, "%u\n", mp->m_errortag[error_tag]);
 }
 
 static const struct sysfs_ops xfs_errortag_sysfs_ops = {
@@ -326,17 +325,6 @@ xfs_errortag_test(
 	return true;
 }
 
-int
-xfs_errortag_get(
-	struct xfs_mount	*mp,
-	unsigned int		error_tag)
-{
-	if (!xfs_errortag_valid(error_tag))
-		return -EINVAL;
-
-	return mp->m_errortag[error_tag];
-}
-
 int
 xfs_errortag_set(
 	struct xfs_mount	*mp,

fs/xfs/xfs_error.h

@@ -58,7 +58,6 @@ bool xfs_errortag_enabled(struct xfs_mount *mp, unsigned int tag);
 		mdelay((mp)->m_errortag[(tag)]); \
 	} while (0)
 
-extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag);
 extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag,
 		unsigned int tag_value);
 extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);