Re: [PATCH v3 03/38] char: impi, tpm: depend on HAS_IOPORT

Geert Uytterhoeven
2023-03-14T14:24:43Z

Hi Niklas,

On Tue, Mar 14, 2023 at 1:12 PM Niklas Schnelle <schnelle@linux.ibm.com> wrote:
> In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
> not being declared. We thus need to add this dependency and ifdef
> sections of code using inb()/outb() as alternative access methods.
>
> Co-developed-by: Arnd Bergmann <arnd@kernel.org>
> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>

Thanks for your patch!

> --- a/drivers/char/Kconfig
> +++ b/drivers/char/Kconfig
> @@ -34,6 +34,7 @@ config TTY_PRINTK_LEVEL
> config PRINTER
> tristate "Parallel printer support"
> depends on PARPORT
> + depends on HAS_IOPORT

This looks wrong to me.
drivers/char/lp.c uses the parport API, no direct I/O port access.

> help
> If you intend to attach a printer to the parallel port of your Linux
> box (as opposed to using a serial printer; if the connector at the

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds