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path: root/drivers/ata/sata_sil24.c
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Diffstat (limited to 'drivers/ata/sata_sil24.c')
-rw-r--r--drivers/ata/sata_sil24.c30
1 files changed, 7 insertions, 23 deletions
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index 864c1c1b851..b4b1f91ea69 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -813,8 +813,9 @@ static inline void sil24_fill_sg(struct ata_queued_cmd *qc,
{
struct scatterlist *sg;
struct sil24_sge *last_sge = NULL;
+ unsigned int si;
- ata_for_each_sg(sg, qc) {
+ for_each_sg(qc->sg, sg, qc->n_elem, si) {
sge->addr = cpu_to_le64(sg_dma_address(sg));
sge->cnt = cpu_to_le32(sg_dma_len(sg));
sge->flags = 0;
@@ -823,8 +824,7 @@ static inline void sil24_fill_sg(struct ata_queued_cmd *qc,
sge++;
}
- if (likely(last_sge))
- last_sge->flags = cpu_to_le32(SGE_TRM);
+ last_sge->flags = cpu_to_le32(SGE_TRM);
}
static int sil24_qc_defer(struct ata_queued_cmd *qc)
@@ -852,9 +852,7 @@ static int sil24_qc_defer(struct ata_queued_cmd *qc)
* set.
*
*/
- int is_excl = (prot == ATA_PROT_ATAPI ||
- prot == ATA_PROT_ATAPI_NODATA ||
- prot == ATA_PROT_ATAPI_DMA ||
+ int is_excl = (ata_is_atapi(prot) ||
(qc->flags & ATA_QCFLAG_RESULT_TF));
if (unlikely(ap->excl_link)) {
@@ -885,35 +883,21 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
cb = &pp->cmd_block[sil24_tag(qc->tag)];
- switch (qc->tf.protocol) {
- case ATA_PROT_PIO:
- case ATA_PROT_DMA:
- case ATA_PROT_NCQ:
- case ATA_PROT_NODATA:
+ if (!ata_is_atapi(qc->tf.protocol)) {
prb = &cb->ata.prb;
sge = cb->ata.sge;
- break;
-
- case ATA_PROT_ATAPI:
- case ATA_PROT_ATAPI_DMA:
- case ATA_PROT_ATAPI_NODATA:
+ } else {
prb = &cb->atapi.prb;
sge = cb->atapi.sge;
memset(cb->atapi.cdb, 0, 32);
memcpy(cb->atapi.cdb, qc->cdb, qc->dev->cdb_len);
- if (qc->tf.protocol != ATA_PROT_ATAPI_NODATA) {
+ if (ata_is_data(qc->tf.protocol)) {
if (qc->tf.flags & ATA_TFLAG_WRITE)
ctrl = PRB_CTRL_PACKET_WRITE;
else
ctrl = PRB_CTRL_PACKET_READ;
}
- break;
-
- default:
- prb = NULL; /* shut up, gcc */
- sge = NULL;
- BUG();
}
prb->ctrl = cpu_to_le16(ctrl);