cifs: merge __{cifs,smb2}_reconnect[_tcon]() into cifs_tree_connect()

They were identical execpt to CIFSTCon() vs. SMB2_tcon().
These are also available via ops->tree_connect().

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

1 files changed, 1 insertions, 112 deletions

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 492688764004..24c2ac360591 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -152,117 +152,6 @@ out:
 	return;
 }
 
-#ifdef CONFIG_CIFS_DFS_UPCALL
-static int __smb2_reconnect(const struct nls_table *nlsc,
-			    struct cifs_tcon *tcon)
-{
-	int rc;
-	struct TCP_Server_Info *server = tcon->ses->server;
-	struct dfs_cache_tgt_list tl;
-	struct dfs_cache_tgt_iterator *it = NULL;
-	char *tree;
-	const char *tcp_host;
-	size_t tcp_host_len;
-	const char *dfs_host;
-	size_t dfs_host_len;
-
-	tree = kzalloc(MAX_TREE_SIZE, GFP_KERNEL);
-	if (!tree)
-		return -ENOMEM;
-
-	if (!tcon->dfs_path) {
-		if (tcon->ipc) {
-			scnprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$",
-				  server->hostname);
-			rc = SMB2_tcon(0, tcon->ses, tree, tcon, nlsc);
-		} else {
-			rc = SMB2_tcon(0, tcon->ses, tcon->treeName, tcon,
-				       nlsc);
-		}
-		goto out;
-	}
-
-	rc = dfs_cache_noreq_find(tcon->dfs_path + 1, NULL, &tl);
-	if (rc)
-		goto out;
-
-	extract_unc_hostname(server->hostname, &tcp_host, &tcp_host_len);
-
-	for (it = dfs_cache_get_tgt_iterator(&tl); it;
-	     it = dfs_cache_get_next_tgt(&tl, it)) {
-		const char *share, *prefix;
-		size_t share_len, prefix_len;
-		bool target_match;
-
-		rc = dfs_cache_get_tgt_share(it, &share, &share_len, &prefix,
-					     &prefix_len);
-		if (rc) {
-			cifs_dbg(VFS, "%s: failed to parse target share %d\n",
-				 __func__, rc);
-			continue;
-		}
-
-		extract_unc_hostname(share, &dfs_host, &dfs_host_len);
-
-		if (dfs_host_len != tcp_host_len
-		    || strncasecmp(dfs_host, tcp_host, dfs_host_len) != 0) {
-			cifs_dbg(FYI, "%s: %.*s doesn't match %.*s\n",
-				 __func__,
-				 (int)dfs_host_len, dfs_host,
-				 (int)tcp_host_len, tcp_host);
-
-			rc = match_target_ip(server, dfs_host, dfs_host_len,
-					     &target_match);
-			if (rc) {
-				cifs_dbg(VFS, "%s: failed to match target ip: %d\n",
-					 __func__, rc);
-				break;
-			}
-
-			if (!target_match) {
-				cifs_dbg(FYI, "%s: skipping target\n", __func__);
-				continue;
-			}
-		}
-
-		if (tcon->ipc) {
-			scnprintf(tree, MAX_TREE_SIZE, "\\\\%.*s\\IPC$",
-				  (int)share_len, share);
-			rc = SMB2_tcon(0, tcon->ses, tree, tcon, nlsc);
-		} else {
-			scnprintf(tree, MAX_TREE_SIZE, "\\%.*s", (int)share_len,
-				  share);
-			rc = SMB2_tcon(0, tcon->ses, tree, tcon, nlsc);
-			if (!rc) {
-				rc = update_super_prepath(tcon, prefix,
-							  prefix_len);
-				break;
-			}
-		}
-		if (rc == -EREMOTE)
-			break;
-	}
-
-	if (!rc) {
-		if (it)
-			rc = dfs_cache_noreq_update_tgthint(tcon->dfs_path + 1,
-							    it);
-		else
-			rc = -ENOENT;
-	}
-	dfs_cache_free_tgts(&tl);
-out:
-	kfree(tree);
-	return rc;
-}
-#else
-static inline int __smb2_reconnect(const struct nls_table *nlsc,
-				   struct cifs_tcon *tcon)
-{
-	return SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nlsc);
-}
-#endif
-
 static int
 smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 	       struct TCP_Server_Info *server)
@@ -409,7 +298,7 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 	if (tcon->use_persistent)
 		tcon->need_reopen_files = true;
 
-	rc = __smb2_reconnect(nls_codepage, tcon);
+	rc = cifs_tree_connect(0, tcon, nls_codepage);
 	mutex_unlock(&tcon->ses->session_mutex);
 
 	cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);