md-cluster: remove mddev arg from add_resync_info()

The arg isn't used, so its presence is only confusing.
Signed-off-by: NeilBrown <neilb@suse.com>

drivers/md/md-cluster.c

@@ -195,7 +195,7 @@ static void lockres_free(struct dlm_lock_resource *res)
 	kfree(res);
 }
 
-static void add_resync_info(struct mddev *mddev, struct dlm_lock_resource *lockres,
+static void add_resync_info(struct dlm_lock_resource *lockres,
 			    sector_t lo, sector_t hi)
 {
 	struct resync_info *ri;
@@ -884,7 +884,7 @@ static int resync_info_update(struct mddev *mddev, sector_t lo, sector_t hi)
 	struct md_cluster_info *cinfo = mddev->cluster_info;
 	struct cluster_msg cmsg = {0};
 
-	add_resync_info(mddev, cinfo->bitmap_lockres, lo, hi);
+	add_resync_info(cinfo->bitmap_lockres, lo, hi);
 	/* Re-acquire the lock to refresh LVB */
 	dlm_lock_sync(cinfo->bitmap_lockres, DLM_LOCK_PW);
 	cmsg.type = cpu_to_le32(RESYNCING);