smb: client: get rid of @NLSC param in cifs_tree_connect()

We can access local_nls directly from @tcon->ses, so there is no need
to pass it as parameter in cifs_tree_connect().

Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: Paulo Alcantara

fs/smb/client/cifsproto.h

@@ -314,8 +314,7 @@ extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
 extern void cifs_free_llist(struct list_head *llist);
 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
 
-extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
-			     const struct nls_table *nlsc);
+int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon);
 
 extern int cifs_negotiate_protocol(const unsigned int xid,
 				   struct cifs_ses *ses,

fs/smb/client/cifssmb.c

@@ -70,10 +70,9 @@ static struct {
 static int
 cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
 {
-	int rc;
-	struct cifs_ses *ses;
 	struct TCP_Server_Info *server;
-	struct nls_table *nls_codepage = NULL;
+	struct cifs_ses *ses;
+	int rc;
 
 	/*
 	 * SMBs NegProt, SessSetup, uLogoff do not have tcon yet so check for
@@ -131,8 +130,6 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
 	}
 	spin_unlock(&server->srv_lock);
 
-	nls_codepage = ses->local_nls;
-
 	/*
 	 * need to prevent multiple threads trying to simultaneously
 	 * reconnect the same SMB session
@@ -156,7 +153,7 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
 
 	rc = cifs_negotiate_protocol(0, ses, server);
 	if (!rc)
-		rc = cifs_setup_session(0, ses, server, nls_codepage);
+		rc = cifs_setup_session(0, ses, server, ses->local_nls);
 
 	/* do we need to reconnect tcon? */
 	if (rc || !tcon->need_reconnect) {
@@ -166,7 +163,7 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
 
 skip_sess_setup:
 	cifs_mark_open_files_invalid(tcon);
-	rc = cifs_tree_connect(0, tcon, nls_codepage);
+	rc = cifs_tree_connect(0, tcon);
 	mutex_unlock(&ses->session_mutex);
 	cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
 

fs/smb/client/connect.c

@@ -4344,10 +4344,10 @@ cifs_prune_tlinks(struct work_struct *work)
 }
 
 #ifndef CONFIG_CIFS_DFS_UPCALL
-int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const struct nls_table *nlsc)
+int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon)
 {
-	int rc;
 	const struct smb_version_operations *ops = tcon->ses->server->ops;
+	int rc;
 
 	/* only send once per connect */
 	spin_lock(&tcon->tc_lock);
@@ -4370,7 +4370,8 @@ int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const stru
 	tcon->status = TID_IN_TCON;
 	spin_unlock(&tcon->tc_lock);
 
-	rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name, tcon, nlsc);
+	rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name,
+			       tcon, tcon->ses->local_nls);
 	if (rc) {
 		spin_lock(&tcon->tc_lock);
 		if (tcon->status == TID_IN_TCON)

fs/smb/client/dfs.c

@@ -546,7 +546,7 @@ static int tree_connect_dfs_target(const unsigned int xid, struct cifs_tcon *tco
 	return rc;
 }
 
-int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const struct nls_table *nlsc)
+int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon)
 {
 	int rc;
 	struct TCP_Server_Info *server = tcon->ses->server;
@@ -588,7 +588,8 @@ int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const stru
 		cifs_server_lock(server);
 		scnprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$", server->hostname);
 		cifs_server_unlock(server);
-		rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);
+		rc = ops->tree_connect(xid, tcon->ses, tree,
+				       tcon, tcon->ses->local_nls);
 		goto out;
 	}
 

fs/smb/client/smb2pdu.c

@@ -216,10 +216,9 @@ static int
 smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 	       struct TCP_Server_Info *server, bool from_reconnect)
 {
-	int rc = 0;
-	struct nls_table *nls_codepage = NULL;
 	struct cifs_ses *ses;
 	int xid;
+	int rc = 0;
 
 	/*
 	 * SMB2s NegProt, SessSetup, Logoff do not have tcon yet so
@@ -334,8 +333,6 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 	}
 	spin_unlock(&server->srv_lock);
 
-	nls_codepage = ses->local_nls;
-
 	/*
 	 * need to prevent multiple threads trying to simultaneously
 	 * reconnect the same SMB session
@@ -372,7 +369,7 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 			}
 		}
 
-		rc = cifs_setup_session(0, ses, server, nls_codepage);
+		rc = cifs_setup_session(0, ses, server, ses->local_nls);
 		if ((rc == -EACCES) || (rc == -EKEYEXPIRED) || (rc == -EKEYREVOKED)) {
 			/*
 			 * Try alternate password for next reconnect (key rotation
@@ -406,7 +403,7 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 	if (tcon->use_persistent)
 		tcon->need_reopen_files = true;
 
-	rc = cifs_tree_connect(0, tcon, nls_codepage);
+	rc = cifs_tree_connect(0, tcon);
 
 	cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
 	if (rc) {