[PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y

[Tomasz Nowicki]

On 21.12.2015 19:12, Stefano Stabellini wrote:
> On Wed, 16 Dec 2015, Tomasz Nowicki wrote:
>> In drivers/xen/pci.c, there are arch x86 dependent codes when
>> CONFIG_PCI_MMCONFIG is enabled, since CONFIG_PCI_MMCONFIG
>> depends on ACPI, so this will prevent XEN PCI running on other
>> architectures using ACPI with PCI_MMCONFIG enabled (such as ARM64).
>>
>> Fortunatly, it can be sloved in a simple way. In drivers/xen/pci.c,
>> the only x86 dependent code is if ((pci_probe & PCI_PROBE_MMCONF) == 0),
>> and it's defined in asm/pci_x86.h, the code means that
>> if the PCI resource is not probed in PCI_PROBE_MMCONF way, just
>> ingnore the xen mcfg init. Actually this is duplicate, because
>> if PCI resource is not probed in PCI_PROBE_MMCONF way, the
>> pci_mmconfig_list will be empty, and the if (list_empty())
>> after it will do the same job.
>>
>> So just remove the arch related code and the head file, this
>> will be no functional change for x86, and also makes xen/pci.c
>> usable for other architectures.
>>
>> Signed-off-by: Hanjun Guo <hanjun.guo at linaro.org>
>> CC: Konrad Rzeszutek Wilk <konrad.wilk at oracle.com>
>> CC: Boris Ostrovsky <boris.ostrovsky at oracle.com>
>> Cc: Stefano Stabellini <Stefano.Stabellini at eu.citrix.com>
>> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit at amd.com>
>
> Acked-by: Stefano Stabellini <stefano.stabellini at eu.citrix.com>
>

Thanks Stefano.

Tomasz