Subject: [PATCH v5 04/19] PCI/MSI: Add hooks to populate the msi_domain field

From: [email-masked] (Bjorn Helgaas)
Date: Thu, 23 Jul 2015 08:06:37 -0500

On Thu, Jul 23, 2015 at 10:26:23AM +0100, Marc Zyngier wrote:
> In order to be able to populate the device msi_domain field,
> add the necessary hooks to propagate the host bridge msi_domain
> across secondary busses to devices.
> 
> So far, nobody populates the initial msi_domain.
> 
> Signed-off-by: Marc Zyngier <[email-masked]>

Acked-by: Bjorn Helgaas <[email-masked]>

> +static void pci_set_msi_domain(struct pci_dev *dev)
> +{
> +	/*
> +	 * If no domain has been set through the pcibios callback,
> +	 * inherit the default from the bus device.

Nit: there isn't a pcibios callback anymore.

> +	 */
> +	if (!dev_get_msi_domain(&dev->dev))
> +		dev_set_msi_domain(&dev->dev,
> +				   dev_get_msi_domain(&dev->bus->dev));
> +}