[PATCH v3 12/13] smb/client: check if SMB1 DOS/SRV error mapping arrays are sorted

[huiwen.he@linux.dev]

From: Youling Tang <tangyouling@kylinos.cn>

Although the arrays are sorted at build time, verify the ordering again
when cifs.ko is loaded to avoid potential regressions introduced by
future script changes.

Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
---
 fs/smb/client/smb1maperror.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/fs/smb/client/smb1maperror.c b/fs/smb/client/smb1maperror.c
index 28e1c84fa83b..bca9b60ac836 100644
--- a/fs/smb/client/smb1maperror.c
+++ b/fs/smb/client/smb1maperror.c
@@ -219,6 +219,10 @@ static int __init __array ## _is_sorted(void)				\
 
 /* ntstatus_to_dos_map_is_sorted */
 DEFINE_CHECK_SORT_FUNC(ntstatus_to_dos_map, ntstatus);
+/* mapping_table_ERRDOS_is_sorted */
+DEFINE_CHECK_SORT_FUNC(mapping_table_ERRDOS, smb_err);
+/* mapping_table_ERRSRV_is_sorted */
+DEFINE_CHECK_SORT_FUNC(mapping_table_ERRSRV, smb_err);
 
 int __init smb1_init_maperror(void)
 {
@@ -228,6 +232,14 @@ int __init smb1_init_maperror(void)
 	if (rc)
 		return rc;
 
+	rc = mapping_table_ERRDOS_is_sorted();
+	if (rc)
+		return rc;
+
+	rc = mapping_table_ERRSRV_is_sorted();
+	if (rc)
+		return rc;
+
 	return rc;
 }
 
-- 
2.53.0