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AHCI: Move host activation code into ahci_host_activate()

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Currently host activation done by calling either function
ahci_host_activate() or ata_host_activate(). Consolidate
the code by only calling ahci_host_activate() for all AHCI
devices.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
This commit is contained in:
Alexander Gordeev 2014-09-29 18:25:59 +02:00 committed by Tejun Heo
parent 1c62854f5f
commit d1028e2f95
6 changed files with 39 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/ata/acard-ahci.c
View File

@ -498,8 +498,7 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
acard_ahci_pci_print_info(host);
pci_set_master(pdev);
return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
&acard_ahci_sht);
return ahci_host_activate(host, pdev->irq, &acard_ahci_sht);
}
module_pci_driver(acard_ahci_pci_driver);

6
drivers/ata/ahci.c
View File

@ -1427,11 +1427,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_set_master(pdev);
if (hpriv->flags & AHCI_HFLAG_MULTI_MSI)
return ahci_host_activate(host, pdev->irq, &ahci_sht);
return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
&ahci_sht);
return ahci_host_activate(host, pdev->irq, &ahci_sht);
}
module_pci_driver(ahci_pci_driver);

3
drivers/ata/ahci.h
View File

@ -388,9 +388,6 @@ int ahci_port_resume(struct ata_port *ap);
void ahci_set_em_messages(struct ahci_host_priv *hpriv,
struct ata_port_info *pi);
int ahci_reset_em(struct ata_host *host);
irqreturn_t ahci_interrupt(int irq, void *dev_instance);
irqreturn_t ahci_hw_interrupt(int irq, void *dev_instance);
irqreturn_t ahci_thread_fn(int irq, void *dev_instance);
void ahci_print_info(struct ata_host *host, const char *scc_s);
int ahci_host_activate(struct ata_host *host, int irq,
struct scsi_host_template *sht);

59
drivers/ata/libahci.c
View File

@ -1789,7 +1789,7 @@ static void ahci_port_intr(struct ata_port *ap)
ahci_handle_port_interrupt(ap, port_mmio, status);
}
irqreturn_t ahci_thread_fn(int irq, void *dev_instance)
static irqreturn_t ahci_thread_fn(int irq, void *dev_instance)
{
struct ata_port *ap = dev_instance;
struct ahci_port_priv *pp = ap->private_data;
@ -1809,7 +1809,6 @@ irqreturn_t ahci_thread_fn(int irq, void *dev_instance)
return IRQ_HANDLED;
}
EXPORT_SYMBOL_GPL(ahci_thread_fn);
static void ahci_hw_port_interrupt(struct ata_port *ap)
{
@ -1823,7 +1822,7 @@ static void ahci_hw_port_interrupt(struct ata_port *ap)
pp->intr_status |= status;
}
irqreturn_t ahci_hw_interrupt(int irq, void *dev_instance)
static irqreturn_t ahci_hw_interrupt(int irq, void *dev_instance)
{
struct ata_port *ap_this = dev_instance;
struct ahci_port_priv *pp = ap_this->private_data;
@ -1877,9 +1876,8 @@ irqreturn_t ahci_hw_interrupt(int irq, void *dev_instance)
return IRQ_WAKE_THREAD;
}
EXPORT_SYMBOL_GPL(ahci_hw_interrupt);
irqreturn_t ahci_interrupt(int irq, void *dev_instance)
static irqreturn_t ahci_interrupt(int irq, void *dev_instance)
{
struct ata_host *host = dev_instance;
struct ahci_host_priv *hpriv;
@ -1938,7 +1936,6 @@ irqreturn_t ahci_interrupt(int irq, void *dev_instance)
return IRQ_RETVAL(handled);
}
EXPORT_SYMBOL_GPL(ahci_interrupt);
unsigned int ahci_qc_issue(struct ata_queued_cmd *qc)
{
@ -2472,24 +2469,8 @@ void ahci_set_em_messages(struct ahci_host_priv *hpriv,
}
EXPORT_SYMBOL_GPL(ahci_set_em_messages);
/**
* ahci_host_activate - start AHCI host, request IRQs and register it
* @host: target ATA host
* @irq: base IRQ number to request
* @sht: scsi_host_template to use when registering the host
*
* Similar to ata_host_activate, but requests IRQs according to AHCI-1.1
* when multiple MSIs were allocated. That is one MSI per port, starting
* from @irq.
*
* LOCKING:
* Inherited from calling layer (may sleep).
*
* RETURNS:
* 0 on success, -errno otherwise.
*/
int ahci_host_activate(struct ata_host *host, int irq,
struct scsi_host_template *sht)
static int ahci_host_activate_multi_irqs(struct ata_host *host, int irq,
struct scsi_host_template *sht)
{
int i, rc;
@ -2531,6 +2512,36 @@ out_free_irqs:
return rc;
}
/**
* ahci_host_activate - start AHCI host, request IRQs and register it
* @host: target ATA host
* @irq: base IRQ number to request
* @sht: scsi_host_template to use when registering the host
*
* Similar to ata_host_activate, but requests IRQs according to AHCI-1.1
* when multiple MSIs were allocated. That is one MSI per port, starting
* from @irq.
*
* LOCKING:
* Inherited from calling layer (may sleep).
*
* RETURNS:
* 0 on success, -errno otherwise.
*/
int ahci_host_activate(struct ata_host *host, int irq,
struct scsi_host_template *sht)
{
struct ahci_host_priv *hpriv = host->private_data;
int rc;
if (hpriv->flags & AHCI_HFLAG_MULTI_MSI)
rc = ahci_host_activate_multi_irqs(host, irq, sht);
else
rc = ata_host_activate(host, irq, ahci_interrupt,
IRQF_SHARED, sht);
return rc;
}
EXPORT_SYMBOL_GPL(ahci_host_activate);
MODULE_AUTHOR("Jeff Garzik");

3
drivers/ata/libahci_platform.c
View File

@ -493,8 +493,7 @@ int ahci_platform_init_host(struct platform_device *pdev,
ahci_init_controller(host);
ahci_print_info(host, "platform");
return ata_host_activate(host, irq, ahci_interrupt, IRQF_SHARED,
&ahci_platform_sht);
return ahci_host_activate(host, irq, &ahci_platform_sht);
}
EXPORT_SYMBOL_GPL(ahci_platform_init_host);

3
drivers/ata/sata_highbank.c
View File

@ -568,8 +568,7 @@ static int ahci_highbank_probe(struct platform_device *pdev)
ahci_init_controller(host);
ahci_print_info(host, "platform");
rc = ata_host_activate(host, irq, ahci_interrupt, 0,
&ahci_highbank_platform_sht);
rc = ahci_host_activate(host, irq, &ahci_highbank_platform_sht);
if (rc)
goto err0;