Don't bother PCIe devices with trying to set MWI.
Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
---
drivers/pci/pci.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 9c49b96c2..b7f0883d6 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4347,6 +4347,9 @@ int pci_set_mwi(struct pci_dev *dev)
int rc;
u16 cmd;
+ if (pci_is_pcie(dev))
+ return 0;
+
rc = pci_set_cacheline_size(dev);
if (rc)
return rc;
@@ -4374,6 +4377,9 @@ int pcim_set_mwi(struct pci_dev *dev)
{
struct pci_devres *dr;
+ if (pci_is_pcie(dev))
+ return 0;
+
dr = find_pci_dr(dev);
if (!dr)
return -ENOMEM;
@@ -4413,6 +4419,9 @@ void pci_clear_mwi(struct pci_dev *dev)
#ifndef PCI_DISABLE_MWI
u16 cmd;
+ if (pci_is_pcie(dev))
+ return;
+
pci_read_config_word(dev, PCI_COMMAND, &cmd);
if (cmd & PCI_COMMAND_INVALIDATE) {
cmd &= ~PCI_COMMAND_INVALIDATE;
--
2.29.2
