On Tue, 7 Jul 2015, Marc Zyngier wrote:
> +static int its_pci_msi_prepare(struct irq_domain *domain, struct device *dev,
> + int nvec, msi_alloc_info_t *info)
> +{
> + struct pci_dev *pdev;
> + struct its_pci_alias dev_alias;
> +
> + if (!dev_is_pci(dev))
> + return -EINVAL;
> +
> + pdev = to_pci_dev(dev);
> + dev_alias.pdev = pdev;
> + dev_alias.count = nvec;
> +
> + pci_for_each_dma_alias(pdev, its_get_pci_alias, &dev_alias);
> +
> + return its_msi_prepare(domain, dev_alias.dev_id, dev_alias.count, info);
I don't think you need its_msi_prepare() exposed to child
drivers. Something like
domain->parent->ops->msi_prepare()
should do the trick.
Thanks,
tglx
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