On 03/29/2017 02:36 PM, Kishon Vijay Abraham I wrote:
(snip)

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FWIW:
I've tested Kishon's tag pci-endpoint-for-4.12
and PCIe on artpec6 SoC is still working fine.

Thanks for testing it.

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I also included the DRA7xx PCIe driver in my
kernel so that pcie-designware-ep.c gets built.

My only worry is that the code in pcie-designware-ep.c
is not compile tested if DRA7xx is not selected
(as it is the only driver using PCIE_DW_EP at
the moment).

yeah, we should plan to include COMPILE_TEST in all pci drivers but I guess
there is some problem with non-ARM builds [1]. As Bjorn mentioned in the
thread, we could add #ifdef ARM and then include COMPILE_TEST.

I think I misunderstood your concern. yeah, there is no direct way to compile
pcie-designware-ep.c without selecting DRA7xx.

There is no way to compile pcie-designware-host.c + pcie-designware.c
without selecting a driver that selects PCIE_DW_HOST,
so I guess the same "problem" applies there.

As long as kbuild builds PCI_DRA7XX_EP (and any driver that selects
PCIE_DW_HOST), we should be fine.