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libata: make ata_pci_init_one() not use ops->irq_handler and pi->sht

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ata_pci_init_one() is the only function which uses ops->irq_handler
and pi->sht.  Other initialization functions take the same information
as arguments.  This causes confusion and duplicate unused entries in
structures.

Make ata_pci_init_one() take sht as an argument and use ata_interrupt
implicitly.  All current users use ata_interrupt and if different irq
handler is necessary open coding ata_pci_init_one() using
ata_prepare_sff_host() and ata_activate_sff_host can be done under ten
lines including error handling and driver which requires custom
interrupt handler is likely to require custom initialization anyway.

As ata_pci_init_one() was the last user of ops->irq_handler, this
patch also kills the field.

Signed-off-by: Tejun Heo <htejun@gmail.com>
This commit is contained in:
Tejun Heo
2008-03-25 12:22:49 +09:00
committed by Jeff Garzik
parent 029cfd6b74
commit 1bd5b715a3
39 changed files with 42 additions and 130 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/ata/pata_ns87415.c
+1 -3
View File
@@ -345,7 +345,6 @@ static int ns87415_init_one (struct pci_dev *pdev, const struct pci_device_id *e
{
static int printed_version;
static const struct ata_port_info info = {
.sht = &ns87415_sht,
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
@@ -355,7 +354,6 @@ static int ns87415_init_one (struct pci_dev *pdev, const struct pci_device_id *e
int rc;
#if defined(CONFIG_SUPERIO)
static const struct ata_port_info info87560 = {
.sht = &ns87415_sht,
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
@@ -377,7 +375,7 @@ static int ns87415_init_one (struct pci_dev *pdev, const struct pci_device_id *e
pci_write_config_byte(pdev, 0x55, 0xEE);
/* Select PIO0 8bit clocking */
pci_write_config_byte(pdev, 0x54, 0xB7);
return ata_pci_init_one(pdev, ppi);
return ata_pci_init_one(pdev, ppi, &ns87415_sht);
}
static const struct pci_device_id ns87415_pci_tbl[] = {