Re: [PATCH 4/4] sh: machvec: remove custom ioport_{un,}map()

[Arnd Bergmann]

On Fri, Sep 15, 2023, at 17:41, Geert Uytterhoeven wrote:
> On Wed, Sep 13, 2023 at 4:30 PM Arnd Bergmann <arnd@xxxxxxxx> wrote:
>> On Wed, Sep 13, 2023, at 16:13, Geert Uytterhoeven wrote:
>>
>> Right, it looks like the GENERIC_IOMAP part if gone from that
>> series, and I also see that the PCI host bridge does not actually
>
> No, 02/30 still enables it.

Ok.

>> map the port I/O window. That's usually fine because very few
>> drivers actually need it, and it also means that there should be
>> no need for GENERIC_IOMAP or the simpler alternative.
>>
>> The first version probably only did it accidentally, which is a
>> common mistake, and I think the ones for hexagon, m68k, and
>> mips can probably be removed as well with some simplifiations.
>
> When not selecting GENERIC_IOMAP in v2, the build fails with:
>
> sh4-linux-gnu-ld: lib/devres.o: in function `pcim_iomap_release':
> devres.c:(.text+0x234): undefined reference to `pci_iounmap'

Odd, that one is provided based on CONFIG_GENERIC_PCI_IOMAP
and should be provided by common code, despite the similar
naming this is unrelated to CONFIG_GENERIC_IOMAP.

    Arnd