On Fri, 17 Mar 2017 12:46:29 +0530
Manish Jaggi <mjaggi@xxxxxxxxxxxxxxxxxx> wrote:
> ACS quirk applies to devices with ID in the range a000-a0XX.
> The patch adds a check.This matches on-chip pci devices for
> CN81xx/CN83xx/CN88xx
>
> This patch adds check to
> b404bcfbf0 : PCI: Add ACS quirk for all Cavium devices
>
> Signed-off-by: Manish Jaggi <mjaggi@xxxxxxxxxx>
> Acked-by: David Daney <david.daney@xxxxxxxxxx>
Fixes: b404bcfbf035 ("PCI: Add ACS quirk for all Cavium devices")
Reported-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
Acked-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
Thanks
> ---
> drivers/pci/quirks.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index f754453..178242d 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -4094,6 +4094,9 @@ static int pci_quirk_cavium_acs(struct pci_dev *dev, u16 acs_flags)
> acs_flags &= ~(PCI_ACS_SV | PCI_ACS_TB | PCI_ACS_RR |
> PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_DT);
>
> + if (!((dev->device >= 0xa000) && (dev->device <= 0xa0ff)))
> + return -ENOTTY;
> +
> return acs_flags ? 0 : 1;
> }
>
