Re: [PATCH V4 02/26] powerpc/PCI: deprecate pci_get_bus_and_slot()

From: Sinan Kaya
Date: Tue Dec 19 2017 - 07:24:52 EST

On 12/19/2017 5:29 AM, Michael Ellerman wrote:
> Sinan Kaya <okaya@xxxxxxxxxxxxxx> writes:
>> 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 pci_get_domain_bus_and_slot() with a domain number of 0 as the code
>> is not ready to consume multiple domains and existing code used domain
>> number 0.
>> Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
>> ---
>> arch/powerpc/kernel/pci_32.c | 3 ++-
>> arch/powerpc/platforms/powermac/feature.c | 2 +-
>> arch/powerpc/sysdev/mv64x60_pci.c | 4 ++--
>> 3 files changed, 5 insertions(+), 4 deletions(-)
> Looks to do what it says. I don't know if any of these call sites could
> be improved to provide the domain, but that's not really your problem.

I tried to fix the places where I can at the rest of the series. I even took
a stab at fixing powerpc. There were places where the domain information was
not available and I couldn't locate where to extract it. I decided to leave it
as it is and hope that someone someday may expand the powerpc PCI adaptation.

> Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc)
> cheers

Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.