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x86/apic/msi: Use PCI device MSI property

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instead of fiddling with MSI descriptors.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20211210221813.372357371@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-12-10 23:18:47 +01:00
parent 0bcfade920
commit b3f8236411
1 changed files with 1 additions and 4 deletions
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5
arch/x86/kernel/apic/msi.c
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@ -160,11 +160,8 @@ static struct irq_chip pci_msi_controller = {
int pci_msi_prepare(struct irq_domain *domain, struct device *dev, int nvec,
msi_alloc_info_t *arg)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct msi_desc *desc = first_pci_msi_entry(pdev);
init_irq_alloc_info(arg, NULL);
if (desc->pci.msi_attrib.is_msix) {
if (to_pci_dev(dev)->msix_enabled) {
arg->type = X86_IRQ_ALLOC_TYPE_PCI_MSIX;
} else {
arg->type = X86_IRQ_ALLOC_TYPE_PCI_MSI;