Plug the default MSI-X prepare descriptor for non-implemented ops by
default to workaround the inability of Hyper-V vPCI module to setup
the MSI-X descriptors properly; especially for dynamically allocated
MSI-X.
Signed-off-by: Naman Jain <namjain@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/msi/irqdomain.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/pci/msi/irqdomain.c b/drivers/pci/msi/irqdomain.c
index 765312c92d9b..655e99b9c8cc 100644
--- a/drivers/pci/msi/irqdomain.c
+++ b/drivers/pci/msi/irqdomain.c
@@ -84,6 +84,8 @@ static void pci_msi_domain_update_dom_ops(struct msi_domain_info *info)
} else {
if (ops->set_desc == NULL)
ops->set_desc = pci_msi_domain_set_desc;
+ if (ops->prepare_desc == NULL)
+ ops->prepare_desc = pci_msix_prepare_desc;
}
}
base-commit: 26ffb3d6f02cd0935fb9fa3db897767beee1cb2a
--
2.34.1
