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x86/pci/XEN: Use PCI device property

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instead of fiddling with MSI descriptors.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20211210221813.311410967@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-12-10 23:18:46 +01:00
parent c7ecb95ca6
commit 0bcfade920
1 changed files with 2 additions and 7 deletions
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9
arch/x86/pci/xen.c
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@ -399,9 +399,7 @@ static void xen_teardown_msi_irqs(struct pci_dev *dev)
static void xen_pv_teardown_msi_irqs(struct pci_dev *dev)
{
struct msi_desc *msidesc = first_pci_msi_entry(dev);
if (msidesc->pci.msi_attrib.is_msix)
if (dev->msix_enabled)
xen_pci_frontend_disable_msix(dev);
else
xen_pci_frontend_disable_msi(dev);
@ -417,10 +415,7 @@ static int xen_msi_domain_alloc_irqs(struct irq_domain *domain,
if (WARN_ON_ONCE(!dev_is_pci(dev)))
return -EINVAL;
if (first_msi_entry(dev)->pci.msi_attrib.is_msix)
type = PCI_CAP_ID_MSIX;
else
type = PCI_CAP_ID_MSI;
type = to_pci_dev(dev)->msix_enabled ? PCI_CAP_ID_MSIX : PCI_CAP_ID_MSI;
return xen_msi_ops.setup_msi_irqs(to_pci_dev(dev), nvec, type);
}