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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

7
drivers/ata/libata-sff.c
View File

@@ -826,6 +826,7 @@ int ata_pci_activate_sff_host(struct ata_host *host,
* ata_pci_init_one - Initialize/register PCI IDE host controller
* @pdev: Controller to be initialized
* @ppi: array of port_info, must be enough for two ports
* @sht: scsi_host_template to use when registering the host
*
* This is a helper function which can be called from a driver's
* xxx_init_one() probe function if the hardware uses traditional
@@ -846,7 +847,8 @@ int ata_pci_activate_sff_host(struct ata_host *host,
* Zero on success, negative on errno-based value on error.
*/
int ata_pci_init_one(struct pci_dev *pdev,
const struct ata_port_info * const * ppi)
const struct ata_port_info * const * ppi,
struct scsi_host_template *sht)
{
struct device *dev = &pdev->dev;
const struct ata_port_info *pi = NULL;
@@ -882,8 +884,7 @@ int ata_pci_init_one(struct pci_dev *pdev,
goto out;
pci_set_master(pdev);
rc = ata_pci_activate_sff_host(host, pi->port_ops->irq_handler,
pi->sht);
rc = ata_pci_activate_sff_host(host, ata_interrupt, sht);
out:
if (rc == 0)
devres_remove_group(&pdev->dev, NULL);