Re: [PATCH] asm-generic: io: Fix ioread16/32be and iowrite16/32be

From: Geert Uytterhoeven
Date: Fri Feb 08 2013 - 01:48:08 EST

On Thu, Feb 7, 2013 at 3:18 PM, Michal Simek <michal.simek@xxxxxxxxxx> wrote:
> Fix ioreadXXbe and iowriteXXbe functions which did
> additional little endian conversion on native big endian systems.
> Using be_to_cpu (cpu_to_be) conversions with __raw_read/write
> functions have resolved it.
> Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
> CC: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> CC: Arnd Bergmann <arnd@xxxxxxxx>
> CC: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> CC: Will Deacon <will.deacon@xxxxxxx>
> CC: linux-arch@xxxxxxxxxxxxxxx

I have one question (see below). Apart from that:
Acked-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>

> -#define ioread16be(addr) be16_to_cpu(ioread16(addr))
> +#define ioread16be(addr) __be16_to_cpu(__raw_readw(addr))

Why did you change it to the __beX_to_cpu variant with underscores?



Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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
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