Re: [PATCH v5 07/19] PCI/MSI: Let pci_msi_get_domain use struct device's msi_domain

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Jul 23, 2015 at 10:26:26AM +0100, Marc Zyngier wrote:
> Now that we can easily find which MSI domain a PCI device is
> using, use dev_get_msi_domain as a way to retrieve the information.
> 
> The original code is still used as a fallback.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>

Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

> ---
>  drivers/pci/msi.c | 14 ++++++++------
>  1 file changed, 8 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
> index ef4ec6e..da3c607 100644
> --- a/drivers/pci/msi.c
> +++ b/drivers/pci/msi.c
> @@ -39,14 +39,16 @@ struct irq_domain * __weak arch_get_pci_msi_domain(struct pci_dev *dev)
>  
>  static struct irq_domain *pci_msi_get_domain(struct pci_dev *dev)
>  {
> -	struct irq_domain *domain = NULL;
> +	struct irq_domain *domain;
> +
> +	domain = dev_get_msi_domain(&dev->dev);
> +	if (domain)
> +		return domain;
>  
> -	if (dev->bus->msi)
> -		domain = dev->bus->msi->domain;
> -	if (!domain)
> -		domain = arch_get_pci_msi_domain(dev);
> +	if (dev->bus->msi && (domain = dev->bus->msi->domain))
> +		return domain;
>  
> -	return domain;
> +	return arch_get_pci_msi_domain(dev);
>  }
>  
>  static int pci_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
> -- 
> 2.1.4
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux