Since the commit 1851617cd2 ("PCI/MSI: Disable MSI at enumeration even if
kernel doesn't support MSI"), MSI/MSI-X interrupts aren't being disabled
at PCI probe time, as the logic responsible for this was moved in the
aforementioned commit from pci_device_add() to pci_setup_device(). The
latter function is not reachable on PowerPC pSeries platform during
Open Firmware PCI probing time.
This patch calls pci_msi_setup_pci_dev() explicitly to disable MSI/MSI-X
during PCI probe time on pSeries platform.
Signed-off-by: Guilherme G. Piccoli <gpiccoli@xxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/pci_of_scan.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index 42e02a2..0e920f3 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -191,6 +191,9 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
pci_device_add(dev, bus);
+ /* Disable MSI/MSI-X here to avoid bogus interrupts */
+ pci_msi_setup_pci_dev(dev);
+
return dev;
}
EXPORT_SYMBOL(of_create_pci_dev);
--
2.1.0
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