[PATCH v2 2/3] libahci: Implement the capability to override the generic ahci interrupt handler.

[Tejun Heo]

On Wed, Jan 27, 2016 at 03:19:56PM +0530, Suman Tripathi wrote:
> @@ -2466,13 +2467,19 @@ int ahci_host_activate(struct ata_host *host, struct scsi_host_template *sht)
>  {
>  	struct ahci_host_priv *hpriv = host->private_data;
>  	int irq = hpriv->irq;
> +	irqreturn_t (*ahci_irq_handler)(int irq, void *dev_instance);
>  	int rc;
> 
>  	if (hpriv->flags & (AHCI_HFLAG_MULTI_MSI | AHCI_HFLAG_MULTI_MSIX))
>  		rc = ahci_host_activate_multi_irqs(host, sht);

You need to add { } to the if body too.  Please read CodingStyle.

> -	else
> -		rc = ata_host_activate(host, irq, ahci_single_level_irq_intr,
> +	else {
> +		ahci_irq_handler = hpriv->ahci_irq_intr ? hpriv->ahci_irq_intr :
> +				   ahci_single_level_irq_intr;
> +
> +		rc = ata_host_activate(host, irq, ahci_irq_handler,
>  				       IRQF_SHARED, sht);
> +	}

Can you please make this handled the same way as ->start_engine?
Also, maybe print out a warning message if a driver specifies both
AHCI_HFLAG_MULTI_MSI[X] and the irq handler override?

Thanks.

-- 
tejun