Re: [PATCH AUTOSEL 3.18 13/98] PCI: Mark Atheros AR9580 to avoid bus reset

[Tom Psyborg]

On 25/10/2018, Sasha Levin <sashal@xxxxxxxxxx> wrote:
> From: Maik Broemme <mbroemme@xxxxxxxxxx>
>
> [ Upstream commit 8e2e03179923479ca0c0b6fdc7c93ecf89bce7a8 ]
>
> Similar to the AR93xx and the AR94xx series, the AR95xx also have the same
> quirk for the Bus Reset.  It will lead to instant system reset if the
> device is assigned via VFIO to a KVM VM.  I've been able reproduce this
> behavior with a MikroTik R11e-2HnD.
>
> Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
> Signed-off-by: Maik Broemme <mbroemme@xxxxxxxxxx>
> Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> CC: stable@xxxxxxxxxxxxxxx	# v3.14+
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
> ---
>  drivers/pci/quirks.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index 9e86ace95832..0b75b47a5329 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -3081,6 +3081,7 @@ static void quirk_no_bus_reset(struct pci_dev *dev)
>  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);
>
>  #ifdef CONFIG_ACPI
>  /*
> --
> 2.17.1
>
>

Hi

You should CC this to linux-wireless list too