24 	int rc;  in dfs_parse_target_referral()  local
45 	rc = smb3_parse_devname(path, ctx);  in dfs_parse_target_referral()
46 	if (rc)  in dfs_parse_target_referral()
49 	rc = dns_resolve_server_name_to_ip(path, (struct sockaddr *)&ctx->dstaddr, NULL);  in dfs_parse_target_referral()
53 	return rc;  in dfs_parse_target_referral()
59 	int rc;  in get_session()  local
62 	rc = cifs_mount_get_session(mnt_ctx);  in get_session()
65 	return rc;  in get_session()
102 	int rc;  in parse_dfs_target()  local
105 	rc = ref_walk_get_tgt(rw, tgt);  in parse_dfs_target()
106 	if (!rc)  in parse_dfs_target()
107 		rc = dfs_parse_target_referral(fpath, tgt, ctx);  in parse_dfs_target()
108 	return rc;  in parse_dfs_target()
118 	int rc;  in set_ref_paths()  local
130 		rc = PTR_ERR(ref_path);  in set_ref_paths()
132 		return rc;  in set_ref_paths()
145 	int rc = -ENOENT;  in __dfs_referral_walk()  local
150 			rc = dfs_get_referral(mnt_ctx, ref_walk_path(rw) + 1,  in __dfs_referral_walk()
152 			if (rc) {  in __dfs_referral_walk()
153 				rc = cifs_mount_get_tcon(mnt_ctx);  in __dfs_referral_walk()
154 				if (!rc)  in __dfs_referral_walk()
155 					rc = cifs_is_path_remote(mnt_ctx);  in __dfs_referral_walk()
159 				rc = -ENOENT;  in __dfs_referral_walk()
165 			rc = parse_dfs_target(ctx, rw, &tgt);  in __dfs_referral_walk()
166 			if (rc)  in __dfs_referral_walk()
170 			rc = get_session(mnt_ctx, ref_walk_path(rw));  in __dfs_referral_walk()
171 			if (rc)  in __dfs_referral_walk()
179 				rc = cifs_mount_get_tcon(mnt_ctx);  in __dfs_referral_walk()
180 				if (!rc)  in __dfs_referral_walk()
181 					rc = cifs_is_path_remote(mnt_ctx);  in __dfs_referral_walk()
182 				if (!rc)  in __dfs_referral_walk()
184 				if (rc != -EREMOTE)  in __dfs_referral_walk()
189 				rc = add_root_smb_session(mnt_ctx);  in __dfs_referral_walk()
190 				if (rc)  in __dfs_referral_walk()
194 			rc = ref_walk_advance(rw);  in __dfs_referral_walk()
195 			if (!rc) {  in __dfs_referral_walk()
196 				rc = set_ref_paths(mnt_ctx, &tgt, rw);  in __dfs_referral_walk()
197 				if (!rc) {  in __dfs_referral_walk()
198 					rc = -EREMOTE;  in __dfs_referral_walk()
202 			if (rc != -ELOOP)  in __dfs_referral_walk()
205 	} while (rc && ref_walk_descend(rw));  in __dfs_referral_walk()
209 	return rc;  in __dfs_referral_walk()
215 	int rc;  in dfs_referral_walk()  local
222 	rc = set_ref_paths(mnt_ctx, NULL, rw);  in dfs_referral_walk()
223 	if (!rc)  in dfs_referral_walk()
224 		rc = __dfs_referral_walk(mnt_ctx, rw);  in dfs_referral_walk()
226 	return rc;  in dfs_referral_walk()
235 	int rc;  in __dfs_mount_share()  local
241 	rc = dfs_referral_walk(mnt_ctx);  in __dfs_mount_share()
242 	if (rc)  in __dfs_mount_share()
263 	return rc;  in __dfs_mount_share()
270 	int rc;  in update_fs_context_dstaddr()  local
272 	rc = dns_resolve_server_name_to_ip(ctx->source, addr, NULL);  in update_fs_context_dstaddr()
273 	if (!rc)  in update_fs_context_dstaddr()
275 	return rc;  in update_fs_context_dstaddr()
282 	int rc;  in dfs_mount_share()  local
284 	rc = update_fs_context_dstaddr(ctx);  in dfs_mount_share()
285 	if (rc)  in dfs_mount_share()
286 		return rc;  in dfs_mount_share()
289 	rc = get_session(mnt_ctx, NULL);  in dfs_mount_share()
290 	if (rc)  in dfs_mount_share()
291 		return rc;  in dfs_mount_share()
302 		rc = dfs_get_referral(mnt_ctx, ctx->UNC + 1, NULL, NULL);  in dfs_mount_share()
303 		if (rc) {  in dfs_mount_share()
305 				 __func__, ctx->UNC + 1, rc);  in dfs_mount_share()
311 		rc = cifs_mount_get_tcon(mnt_ctx);  in dfs_mount_share()
312 		if (!rc)  in dfs_mount_share()
313 			rc = cifs_is_path_remote(mnt_ctx);  in dfs_mount_share()
314 		return rc;  in dfs_mount_share()
326 	int rc = 0;  in update_server_fullpath()  local
353 		rc = PTR_ERR(npath);  in update_server_fullpath()
362 	return rc;  in update_server_fullpath()
368 	int rc = 0;  in target_share_matches_server()  local
381 		rc = match_target_ip(server, dfs_host, dfs_host_len, target_match);  in target_share_matches_server()
382 		if (rc)  in target_share_matches_server()
383 			cifs_dbg(VFS, "%s: failed to match target ip: %d\n", __func__, rc);  in target_share_matches_server()
386 	return rc;  in target_share_matches_server()
395 	int rc;  in __tree_connect_ipc()  local
414 	rc = server->ops->tree_connect(xid, ses, tree, tcon,  in __tree_connect_ipc()
416 	cifs_server_dbg(FYI, "%s: tree_reconnect %s: %d\n", __func__, tree, rc);  in __tree_connect_ipc()
418 	if (rc) {  in __tree_connect_ipc()
441 	int rc;  in __tree_connect_dfs_target()  local
451 		rc = -ENOENT;  in __tree_connect_dfs_target()
465 		rc = dfs_cache_get_tgt_share(server->leaf_fullpath + 1, tit, &share, &prefix);  in __tree_connect_dfs_target()
466 		if (rc) {  in __tree_connect_dfs_target()
467 			cifs_dbg(VFS, "%s: failed to parse target share: %d\n", __func__, rc);  in __tree_connect_dfs_target()
471 		rc = target_share_matches_server(server, share, &target_match);  in __tree_connect_dfs_target()
472 		if (rc)  in __tree_connect_dfs_target()
475 			rc = -EHOSTUNREACH;  in __tree_connect_dfs_target()
484 			rc = ops->tree_connect(xid, tcon->ses, tree, tcon, cifs_sb->local_nls);  in __tree_connect_dfs_target()
496 			rc = ops->tree_connect(xid, tcon->ses, tree, tcon, cifs_sb->local_nls);  in __tree_connect_dfs_target()
497 			if (rc)  in __tree_connect_dfs_target()
500 			rc = cifs_update_super_prepath(cifs_sb, prefix);  in __tree_connect_dfs_target()
503 			rc = update_server_fullpath(server, cifs_sb, target);  in __tree_connect_dfs_target()
506 			if (!rc) {  in __tree_connect_dfs_target()
507 				rc = -EREMOTE;  in __tree_connect_dfs_target()
519 	return rc;  in __tree_connect_dfs_target()
526 	int rc;  in tree_connect_dfs_target()  local
532 		rc = __tree_connect_dfs_target(xid, tcon, cifs_sb, tree, islink, tl);  in tree_connect_dfs_target()
533 		if (!rc || rc != -EREMOTE)  in tree_connect_dfs_target()
535 	} while (rc = -ELOOP, ++num_links < MAX_NESTED_LINKS);  in tree_connect_dfs_target()
540 	if (rc && server->leaf_fullpath != old_fullpath)  in tree_connect_dfs_target()
544 	return rc;  in tree_connect_dfs_target()
549 	int rc;  in cifs_tree_connect()  local
576 		rc = -ENOMEM;  in cifs_tree_connect()
584 		rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);  in cifs_tree_connect()
598 		rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name, tcon,  in cifs_tree_connect()
603 	rc = tree_connect_dfs_target(xid, tcon, cifs_sb, tree, ref.server_type == DFS_TYPE_LINK,  in cifs_tree_connect()
611 	if (rc) {  in cifs_tree_connect()
624 	return rc;  in cifs_tree_connect()