From d1028e2f95b75acab4f1046acae1b1ca7d7b2577 Mon Sep 17 00:00:00 2001 From: Alexander Gordeev Date: Mon, 29 Sep 2014 18:25:59 +0200 Subject: 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 Signed-off-by: Tejun Heo Cc: linux-ide@vger.kernel.org --- drivers/ata/libahci.c | 59 ++++++++++++++++++++++++++++++--------------------- 1 file changed, 35 insertions(+), 24 deletions(-) (limited to 'drivers/ata/libahci.c') 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"); -- cgit v1.2.3