diff options
| -rw-r--r-- | drivers/pci/msi/msi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/msi/msi.c b/drivers/pci/msi/msi.c index bc84647c6dbd..0740acd10bde 100644 --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -762,6 +762,10 @@ int __pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries, int if (WARN_ON_ONCE(dev->msix_enabled)) return -EINVAL; + /* Check MSI-X early on irq domain enabled architectures */ + if (!pci_msi_domain_supports(dev, MSI_FLAG_PCI_MSIX, ALLOW_LEGACY)) + return -ENOTSUPP; + if (!pci_msi_supported(dev, nvec) || dev->current_state != PCI_D0) return -EINVAL; |