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

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>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/ata/pata_ns87415.c b/drivers/ata/pata_ns87415.c
index 38d86a262dbb..42508940e4a9 100644
--- a/drivers/ata/pata_ns87415.c
+++ b/drivers/ata/pata_ns87415.c
@@ -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[] = {