Merge tag 'irq_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Borislav Petkov:
- Have msix_mask_all() check a global control which says whether MSI-X
masking should be done and thus make it usable on Xen-PV too
* tag 'irq_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
PCI/MSI: Skip masking MSI-X on Xen PV
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index e5e7533..3a9f4f8 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -776,6 +776,9 @@ static void msix_mask_all(void __iomem *base, int tsize)
u32 ctrl = PCI_MSIX_ENTRY_CTRL_MASKBIT;
int i;
+ if (pci_msi_ignore_mask)
+ return;
+
for (i = 0; i < tsize; i++, base += PCI_MSIX_ENTRY_SIZE)
writel(ctrl, base + PCI_MSIX_ENTRY_VECTOR_CTRL);
}
