iscsi_tcp: export port being used

This just has iscsi_tcp support ISCSI_PARAM_LOCAL_PORT which
exports the local port being used by the iscsi connection.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/scsi/libiscsi.c

@@ -3505,6 +3505,7 @@ int iscsi_conn_get_addr_param(struct sockaddr_storage *addr,
 			len = sprintf(buf, "%pI6\n", &sin6->sin6_addr);
 		break;
 	case ISCSI_PARAM_CONN_PORT:
+	case ISCSI_PARAM_LOCAL_PORT:
 		if (sin)
 			len = sprintf(buf, "%hu\n", be16_to_cpu(sin->sin_port));
 		else