On Mon, 27 Nov 2017, Sinan Kaya wrote:
> pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
> where a PCI device is present. This restricts the device drivers to be
> reused for other domain numbers.
>
> Getting ready to remove pci_get_bus_and_slot() function in favor of
> pci_get_domain_bus_and_slot().
>
> Use domain number of 0 as the domain number is not available in struct
> irq_routing_table.
>
> Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> ---
> arch/x86/pci/irq.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
> index 04526291..52e5510 100644
> --- a/arch/x86/pci/irq.c
> +++ b/arch/x86/pci/irq.c
> @@ -839,7 +839,8 @@ static void __init pirq_find_router(struct irq_router *r)
> DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for [%04x:%04x]\n",
> rt->rtr_vendor, rt->rtr_device);
>
> - pirq_router_dev = pci_get_bus_and_slot(rt->rtr_bus, rt->rtr_devfn);
> + pirq_router_dev = pci_get_domain_bus_and_slot(0, rt->rtr_bus,
> + rt->rtr_devfn);
> if (!pirq_router_dev) {
> DBG(KERN_DEBUG "PCI: Interrupt router not found at "
> "%02x:%02x\n", rt->rtr_bus, rt->rtr_devfn);
> --
> 1.9.1
>
>
