smb: client: fix noisy when tree connecting to DFS interlink targets

JIRA: https://issues.redhat.com/browse/RHEL-78152

commit 773dc23
Author: Paulo Alcantara <pc@manguebit.com>
Date:   Wed Feb 5 13:22:11 2025 -0300

    smb: client: fix noisy when tree connecting to DFS interlink targets
    
    When the client attempts to tree connect to a domain-based DFS
    namespace from a DFS interlink target, the server will return
    STATUS_BAD_NETWORK_NAME and the following will appear on dmesg:
    
            CIFS: VFS:  BAD_NETWORK_NAME: \\dom\dfs
    
    Since a DFS share might contain several DFS interlinks and they expire
    after 10 minutes, the above message might end up being flooded on
    dmesg when mounting or accessing them.
    
    Print this only once per share.
    
    Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
    Signed-off-by: Steve French <stfrench@microsoft.com>

Signed-off-by: Paulo Alcantara <paalcant@redhat.com>

Author: pcacjr

fs/smb/client/smb2pdu.c

@@ -2167,7 +2167,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
 
 tcon_error_exit:
 	if (rsp && rsp->hdr.Status == STATUS_BAD_NETWORK_NAME)
-		cifs_tcon_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
+		cifs_dbg(VFS | ONCE, "BAD_NETWORK_NAME: %s\n", tree);
 	goto tcon_exit;
 }