From: Manish Jaggi mjaggi@caviumnetworks.com
[ Upstream commit b77d537d00d08fcf0bf641cd3491dd7df0ad1475 ]
Only apply the Cavium ACS quirk to devices with ID in the range 0xa000-0xa0ff. These are the on-chip PCI devices for CN81xx/CN83xx/CN88xx.
Fixes: b404bcfbf035 ("PCI: Add ACS quirk for all Cavium devices") Reported-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Manish Jaggi mjaggi@cavium.com Acked-by: David Daney david.daney@cavium.com Acked-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/pci/quirks.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 0c9edc9d7c44..4c9fb8b323e8 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4104,6 +4104,9 @@ static int pci_quirk_cavium_acs(struct pci_dev *dev, u16 acs_flags) */ acs_flags &= ~(PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_SV | PCI_ACS_UF);
+ if (!((dev->device >= 0xa000) && (dev->device <= 0xa0ff))) + return -ENOTTY; + return acs_flags ? 0 : 1; }