Re: [PATCH 1/1] tty: serial: handle HAS_IOPORT dependencies

[Arnd Bergmann]

On Tue, Oct 1, 2024, at 11:21, Niklas Schnelle wrote:
> On Thu, 2024-05-23 at 03:11 +0100, Maciej W. Rozycki wrote:
>
> With 2 more HAS_IOPORT patches having gone into v6.12-rc1 I'm looking
> at what's left and we're down to 4 prerequisite patches[0] before being
> able to compile-time disable inb()/outb()/…. This one being by far the
> largest of these. Looking at your suggestion it seems that to compile
> 8250_pci.c without HAS_IOPORT I'll have to add #ifdef CONFIG_HAS_IOPORT
> around the MOXI section as that uses I/O ports unconditionally. The
> rest seems fine and I guess would theoretically work on a system with
> !HAS_IOPORT. I'll send a v2 with that included. 

I think that is the correct approach, yes. From what I can tell, the
older version of the 8250 patch added the #ifdef blocks for all other
port types that need port I/O, but the moxa version was added later
than that and just needs the same change.

      Arnd