[SCSI] libfc: simplify fc_lport_rport_callback

The lport rport callback can only be called for the dNS rport,
since its the only rport who's ops point to that function.

Remove unnecessary checking and debug messages.
Put the locking outside the switch statement as a simplification.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/libfc/fc_lport.c

@@ -146,10 +146,9 @@ static void fc_lport_rport_callback(struct fc_lport *lport,
 	FC_LPORT_DBG(lport, "Received a %d event for port (%6x)\n", event,
 		     rdata->ids.port_id);
 
+	mutex_lock(&lport->lp_mutex);
 	switch (event) {
 	case RPORT_EV_READY:
-		if (rdata->ids.port_id == FC_FID_DIR_SERV) {
-			mutex_lock(&lport->lp_mutex);
 		if (lport->state == LPORT_ST_DNS) {
 			lport->dns_rp = rdata;
 			fc_lport_enter_rpn_id(lport);
@@ -162,28 +161,16 @@ static void fc_lport_rport_callback(struct fc_lport *lport,
 				     lport->state);
 			lport->tt.rport_logoff(rdata);
 		}
-			mutex_unlock(&lport->lp_mutex);
-		} else
-			FC_LPORT_DBG(lport, "Received an event for port (%6x) "
-				     "which is not the directory server\n",
-				     rdata->ids.port_id);
 		break;
 	case RPORT_EV_LOGO:
 	case RPORT_EV_FAILED:
 	case RPORT_EV_STOP:
-		if (rdata->ids.port_id == FC_FID_DIR_SERV) {
-			mutex_lock(&lport->lp_mutex);
 		lport->dns_rp = NULL;
-			mutex_unlock(&lport->lp_mutex);
-
-		} else
-			FC_LPORT_DBG(lport, "Received an event for port (%6x) "
-				     "which is not the directory server\n",
-				     rdata->ids.port_id);
 		break;
 	case RPORT_EV_NONE:
 		break;
 	}
+	mutex_unlock(&lport->lp_mutex);
 }
 
 /**