summaryrefslogtreecommitdiff
path: root/drivers/scsi/3w-9xxx.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/3w-9xxx.c')
-rw-r--r--drivers/scsi/3w-9xxx.c23
1 files changed, 9 insertions, 14 deletions
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index b4912d1cee2a..51c3ebf1c7d1 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1838,12 +1838,11 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id,
if (scsi_sg_count(srb)) {
if ((scsi_sg_count(srb) == 1) &&
(scsi_bufflen(srb) < TW_MIN_SGL_LENGTH)) {
- if (srb->sc_data_direction == DMA_TO_DEVICE || srb->sc_data_direction == DMA_BIDIRECTIONAL) {
- struct scatterlist *sg = scsi_sglist(srb);
- char *buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
- memcpy(tw_dev->generic_buffer_virt[request_id], buf, sg->length);
- kunmap_atomic(buf - sg->offset, KM_IRQ0);
- }
+ if (srb->sc_data_direction == DMA_TO_DEVICE ||
+ srb->sc_data_direction == DMA_BIDIRECTIONAL)
+ scsi_sg_copy_to_buffer(srb,
+ tw_dev->generic_buffer_virt[request_id],
+ TW_SECTOR_SIZE);
command_packet->sg_list[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]);
command_packet->sg_list[0].length = cpu_to_le32(TW_MIN_SGL_LENGTH);
} else {
@@ -1915,13 +1914,11 @@ static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int re
(cmd->sc_data_direction == DMA_FROM_DEVICE ||
cmd->sc_data_direction == DMA_BIDIRECTIONAL)) {
if (scsi_sg_count(cmd) == 1) {
- struct scatterlist *sg = scsi_sglist(tw_dev->srb[request_id]);
- char *buf;
- unsigned long flags = 0;
+ unsigned long flags;
+ void *buf = tw_dev->generic_buffer_virt[request_id];
+
local_irq_save(flags);
- buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
- memcpy(buf, tw_dev->generic_buffer_virt[request_id], sg->length);
- kunmap_atomic(buf - sg->offset, KM_IRQ0);
+ scsi_sg_copy_from_buffer(cmd, buf, TW_SECTOR_SIZE);
local_irq_restore(flags);
}
}
@@ -2028,8 +2025,6 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
}
tw_dev = (TW_Device_Extension *)host->hostdata;
- memset(tw_dev, 0, sizeof(TW_Device_Extension));
-
/* Save values to device extension */
tw_dev->host = host;
tw_dev->tw_pci_dev = pdev;