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Diffstat (limited to 'drivers/s390/scsi/zfcp_qdio.c')
-rw-r--r--drivers/s390/scsi/zfcp_qdio.c41
1 files changed, 6 insertions, 35 deletions
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index c408badd2ae9..81daa8204bfe 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -36,8 +36,6 @@ static void zfcp_qdio_sbale_fill
36 (struct zfcp_fsf_req *, unsigned long, void *, int); 36 (struct zfcp_fsf_req *, unsigned long, void *, int);
37static int zfcp_qdio_sbals_from_segment 37static int zfcp_qdio_sbals_from_segment
38 (struct zfcp_fsf_req *, unsigned long, void *, unsigned long); 38 (struct zfcp_fsf_req *, unsigned long, void *, unsigned long);
39static int zfcp_qdio_sbals_from_buffer
40 (struct zfcp_fsf_req *, unsigned long, void *, unsigned long, int);
41 39
42static qdio_handler_t zfcp_qdio_request_handler; 40static qdio_handler_t zfcp_qdio_request_handler;
43static qdio_handler_t zfcp_qdio_response_handler; 41static qdio_handler_t zfcp_qdio_response_handler;
@@ -632,28 +630,6 @@ out:
632 630
633 631
634/** 632/**
635 * zfcp_qdio_sbals_from_buffer - fill SBALs from buffer
636 * @fsf_req: request to be processed
637 * @sbtype: SBALE flags
638 * @buffer: data buffer
639 * @length: length of buffer
640 * @max_sbals: upper bound for number of SBALs to be used
641 */
642static int
643zfcp_qdio_sbals_from_buffer(struct zfcp_fsf_req *fsf_req, unsigned long sbtype,
644 void *buffer, unsigned long length, int max_sbals)
645{
646 struct scatterlist sg_segment;
647
648 zfcp_address_to_sg(buffer, &sg_segment);
649 sg_segment.length = length;
650
651 return zfcp_qdio_sbals_from_sg(fsf_req, sbtype, &sg_segment, 1,
652 max_sbals);
653}
654
655
656/**
657 * zfcp_qdio_sbals_from_scsicmnd - fill SBALs from scsi command 633 * zfcp_qdio_sbals_from_scsicmnd - fill SBALs from scsi command
658 * @fsf_req: request to be processed 634 * @fsf_req: request to be processed
659 * @sbtype: SBALE flags 635 * @sbtype: SBALE flags
@@ -664,18 +640,13 @@ int
664zfcp_qdio_sbals_from_scsicmnd(struct zfcp_fsf_req *fsf_req, 640zfcp_qdio_sbals_from_scsicmnd(struct zfcp_fsf_req *fsf_req,
665 unsigned long sbtype, struct scsi_cmnd *scsi_cmnd) 641 unsigned long sbtype, struct scsi_cmnd *scsi_cmnd)
666{ 642{
667 if (scsi_cmnd->use_sg) { 643 if (scsi_sg_count(scsi_cmnd))
668 return zfcp_qdio_sbals_from_sg(fsf_req, sbtype, 644 return zfcp_qdio_sbals_from_sg(fsf_req, sbtype,
669 (struct scatterlist *) 645 scsi_sglist(scsi_cmnd),
670 scsi_cmnd->request_buffer, 646 scsi_sg_count(scsi_cmnd),
671 scsi_cmnd->use_sg, 647 ZFCP_MAX_SBALS_PER_REQ);
672 ZFCP_MAX_SBALS_PER_REQ); 648 else
673 } else { 649 return 0;
674 return zfcp_qdio_sbals_from_buffer(fsf_req, sbtype,
675 scsi_cmnd->request_buffer,
676 scsi_cmnd->request_bufflen,
677 ZFCP_MAX_SBALS_PER_REQ);
678 }
679} 650}
680 651
681/** 652/**