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authorAlexander Gordeev <agordeev@redhat.com>2014-09-29 20:25:59 +0400
committerTejun Heo <tj@kernel.org>2014-10-06 19:43:35 +0400
commitd1028e2f95b75acab4f1046acae1b1ca7d7b2577 (patch)
tree6f04701879c51f7fb6fbee6ac588790d2e077efe /drivers/ata/libahci.c
parent1c62854f5f7321b3ee8c08d34d7c1e615608566d (diff)
downloadlinux-d1028e2f95b75acab4f1046acae1b1ca7d7b2577.tar.xz
AHCI: Move host activation code into ahci_host_activate()
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
Diffstat (limited to 'drivers/ata/libahci.c')
-rw-r--r--drivers/ata/libahci.c59
1 files changed, 35 insertions, 24 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 21bb427d9df4..0080551f6e33 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -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");