Use macro for fixed strnicmp string length.
--- diff/drivers/md/dm-mpath.c	2004-10-29 20:23:25.000000000 +0100
+++ source/drivers/md/dm-mpath.c	2004-10-29 20:23:07.000000000 +0100
@@ -925,6 +925,8 @@
 	return 0;
 }
 
+#define MESG_STR(x) x, sizeof(x)
+
 static int multipath_message(struct dm_target *ti, unsigned argc, char **argv)
 {
 	int r;
@@ -935,13 +937,13 @@
 	if (argc != 2)
 		goto error;
 
-	if (!strnicmp(argv[0], "disable_group", 14))
+	if (!strnicmp(argv[0], MESG_STR("disable_group")))
 		return bypass_pg_num(m, argv[1], 1);
-	else if (!strnicmp(argv[0], "enable_group", 13))
+	else if (!strnicmp(argv[0], MESG_STR("enable_group")))
 		return bypass_pg_num(m, argv[1], 0);
-	else if (!strnicmp(argv[0], "reinstate_path", 10))
+	else if (!strnicmp(argv[0], MESG_STR("reinstate_path")))
 		action = reinstate_path;
-	else if (!strnicmp(argv[0], "fail_path", 5))
+	else if (!strnicmp(argv[0], MESG_STR("fail_path")))
 		action = fail_path;
 	else
 		goto error;
@@ -965,6 +967,8 @@
 	return -EINVAL;
 }
 
+#undef MESG_STR
+
 /*-----------------------------------------------------------------
  * Module setup
  *---------------------------------------------------------------*/