Remove some of the dependence on the host_set struct
in preparation for supporting SAS HBAs. Adds a struct device
pointer to the ata_port struct.
Signed-off-by: Brian King <brking@xxxxxxxxxx>
---
libata-dev-bjking1/drivers/scsi/libata-core.c | 13 +++++++------
libata-dev-bjking1/include/linux/libata.h | 1 +
2 files changed, 8 insertions(+), 6 deletions(-)
diff -puN include/linux/libata.h~libata_host_set_dev include/linux/libata.h
--- libata-dev/include/linux/libata.h~libata_host_set_dev 2006-03-17 15:35:38.000000000 -0600
+++ libata-dev-bjking1/include/linux/libata.h 2006-03-17 15:35:38.000000000 -0600
@@ -395,6 +395,7 @@ struct ata_port {
struct ata_host_stats stats;
struct ata_host_set *host_set;
+ struct device *dev;
struct work_struct port_task;
diff -puN drivers/scsi/libata-core.c~libata_host_set_dev drivers/scsi/libata-core.c
--- libata-dev/drivers/scsi/libata-core.c~libata_host_set_dev 2006-03-17 15:35:38.000000000 -0600
+++ libata-dev-bjking1/drivers/scsi/libata-core.c 2006-03-17 15:35:38.000000000 -0600
@@ -2740,7 +2740,7 @@ static void ata_sg_clean(struct ata_queu
if (qc->flags & ATA_QCFLAG_SG) {
if (qc->n_elem)
- dma_unmap_sg(ap->host_set->dev, sg, qc->n_elem, dir);
+ dma_unmap_sg(ap->dev, sg, qc->n_elem, dir);
/* restore last sg */
sg[qc->orig_n_elem - 1].length += qc->pad_len;
if (pad_buf) {
@@ -2751,7 +2751,7 @@ static void ata_sg_clean(struct ata_queu
}
} else {
if (qc->n_elem)
- dma_unmap_single(ap->host_set->dev,
+ dma_unmap_single(ap->dev,
sg_dma_address(&sg[0]), sg_dma_len(&sg[0]),
dir);
/* restore sg */
@@ -2963,7 +2963,7 @@ static int ata_sg_setup_one(struct ata_q
goto skip_map;
}
- dma_address = dma_map_single(ap->host_set->dev, qc->buf_virt,
+ dma_address = dma_map_single(ap->dev, qc->buf_virt,
sg->length, dir);
if (dma_mapping_error(dma_address)) {
/* restore sg */
@@ -3051,7 +3051,7 @@ static int ata_sg_setup(struct ata_queue
}
dir = qc->dma_dir;
- n_elem = dma_map_sg(ap->host_set->dev, sg, pre_n_elem, dir);
+ n_elem = dma_map_sg(ap->dev, sg, pre_n_elem, dir);
if (n_elem < 1) {
/* restore last sg */
lsg->length += qc->pad_len;
@@ -4497,7 +4497,7 @@ int ata_device_suspend(struct ata_port *
int ata_port_start (struct ata_port *ap)
{
- struct device *dev = ap->host_set->dev;
+ struct device *dev = ap->dev;
int rc;
ap->prd = dma_alloc_coherent(dev, ATA_PRD_TBL_SZ, &ap->prd_dma, GFP_KERNEL);
@@ -4530,7 +4530,7 @@ int ata_port_start (struct ata_port *ap)
void ata_port_stop (struct ata_port *ap)
{
- struct device *dev = ap->host_set->dev;
+ struct device *dev = ap->dev;
dma_free_coherent(dev, ATA_PRD_TBL_SZ, ap->prd, ap->prd_dma);
ata_pad_free(ap, dev);
@@ -4596,6 +4596,7 @@ static void ata_host_init(struct ata_por
ap->host = host;
ap->ctl = ATA_DEVCTL_OBS;
ap->host_set = host_set;
+ ap->dev = ent->dev;
ap->port_no = port_no;
ap->hard_port_no =
ent->legacy_mode ? ent->hard_port_no : port_no;
_
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