scsi: scsi_transport_fc: use 64-bit timestamps consistently

The get_seconds() helper returns an 'unsigned long' value, which can
overflow on 32-bit architectures. Since the interface we pass it into
already uses a 64-bit type, we can just use ktime_get_real_seconds()
instead.

While we generally prefer local timestamps in CLOCK_MONOTONIC format
(ktime_get_seconds), this keeps using the CLOCK_REALTIME version in order
to maintain compatibility with existing code.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/scsi_transport_fc.c

@@ -567,7 +567,7 @@ fc_host_post_event(struct Scsi_Host *shost, u32 event_number,
 
 	INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC,
 				FC_NL_ASYNC_EVENT, len);
-	event->seconds = get_seconds();
+	event->seconds = ktime_get_real_seconds();
 	event->vendor_id = 0;
 	event->host_no = shost->host_no;
 	event->event_datalen = sizeof(u32);	/* bytes */
@@ -635,7 +635,7 @@ fc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number,
 
 	INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC,
 				FC_NL_ASYNC_EVENT, len);
-	event->seconds = get_seconds();
+	event->seconds = ktime_get_real_seconds();
 	event->vendor_id = vendor_id;
 	event->host_no = shost->host_no;
 	event->event_datalen = data_len;	/* bytes */