diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/msi/irqdomain.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/pci/msi/irqdomain.c b/drivers/pci/msi/irqdomain.c index 473640381f92..8afaef10b939 100644 --- a/drivers/pci/msi/irqdomain.c +++ b/drivers/pci/msi/irqdomain.c @@ -202,6 +202,14 @@ static void pci_irq_unmask_msix(struct irq_data *data) pci_msix_unmask(irq_data_get_msi_desc(data)); } +static void pci_msix_prepare_desc(struct irq_domain *domain, msi_alloc_info_t *arg, + struct msi_desc *desc) +{ + /* Don't fiddle with preallocated MSI descriptors */ + if (!desc->pci.mask_base) + msix_prepare_msi_desc(to_pci_dev(desc->dev), desc); +} + static const struct msi_domain_template pci_msix_template = { .chip = { .name = "PCI-MSIX", @@ -212,6 +220,7 @@ static const struct msi_domain_template pci_msix_template = { }, .ops = { + .prepare_desc = pci_msix_prepare_desc, .set_desc = pci_device_domain_set_desc, }, |