[patch V3 03/35] x86/apic/msi: Use PCI device MSI property

Thomas Gleixner
2021-12-10T22:20:38Z

From: Thomas Gleixner <tglx@linutronix.de>

instead of fiddling with MSI descriptors.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
V3: Use pci_dev->msix_enabled - Jason
---
arch/x86/kernel/apic/msi.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -160,11 +160,8 @@ static struct irq_chip pci_msi_controlle
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;