commit 6afb7e26978da5e86e57e540fdce65c8b04f398a
author James Prestwood <james.prestwood@linux.intel.com> Mon Jan 07 13:32:48 2019 -0800
committer Bjorn Helgaas <bhelgaas@google.com> Mon Apr 22 16:51:15 2019 -0500
tree 4f7db713da3aa893de57fdd4775f7aa83727276d
parent d28ca864c493637f3c957f4ed9348a94fca6de60

PCI: Mark Atheros AR9462 to avoid bus reset

When using PCI passthrough with this device, the host machine locks up
completely when starting the VM, requiring a hard reboot.  Add a quirk to
avoid bus resets on this device.

Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
Link: https://lore.kernel.org/linux-pci/20190107213248.3034-1-james.prestwood@linux.intel.com
Signed-off-by: James Prestwood <james.prestwood@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org	# v3.14+

drivers/pci/quirks.c

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 68bee35..9b9e288 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3408,6 +3408,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0034, quirk_no_bus_reset);
 
 /*
  * Root port on some Cavium CN8xxx chips do not successfully complete a bus