[SCSI] libfc: don't swap OX_ID and RX_ID when sending BA_RJT

I saw an lport debug message from the exchange manager saying:
"lport  70500: Received response for out of range oxid:ffff"

A trace showed this was a BA_RJT sent due to an incoming ABTS
which arrived on an unknown exchange.  So, the sender of the
BA_RJT was in error, but in this case, both the initiator and
responder were the same machine.

The OX_ID and RX_ID should not have been reversed in this case.
Signed-off-by: NJoe Eykholt <jeykholt@cisco.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

drivers/scsi/libfc/fc_exch.c

@@ -1017,8 +1017,8 @@ static void fc_exch_send_ba_rjt(struct fc_frame *rx_fp,
 	 */
 	memcpy(fh->fh_s_id, rx_fh->fh_d_id, 3);
 	memcpy(fh->fh_d_id, rx_fh->fh_s_id, 3);
-	fh->fh_ox_id = rx_fh->fh_rx_id;
-	fh->fh_rx_id = rx_fh->fh_ox_id;
+	fh->fh_ox_id = rx_fh->fh_ox_id;
+	fh->fh_rx_id = rx_fh->fh_rx_id;
 	fh->fh_seq_cnt = rx_fh->fh_seq_cnt;
 	fh->fh_r_ctl = FC_RCTL_BA_RJT;
 	fh->fh_type = FC_TYPE_BLS;