On 21.12.2015 19:12, Stefano Stabellini wrote:

On Wed, 16 Dec 2015, Tomasz Nowicki wrote:

quoted

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 <redacted>
CC: Konrad Rzeszutek Wilk <redacted>
CC: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Stefano Stabellini <redacted>
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>

Acked-by: Stefano Stabellini <redacted>

Thanks Stefano.

Tomasz