Re: [PATCH] kbuild: provide include/asm/asm-prototypes.h for ARM

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On Wed, Oct 19, 2016 at 5:32 PM, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxx> wrote:
> I'm not in favour of this.
>
>    +extern void mmioset(void *, unsigned int, size_t);
>    +extern void mmiocpy(void *, const void *, size_t);
>    +
>     #ifndef __ARMBE__
>     static inline void memset_io(volatile void __iomem *dst, unsigned c,
>            size_t count)
>     {
>    -       extern void mmioset(void *, unsigned int, size_t);
>            mmioset((void __force *)dst, c, count);
>     }
>
> The reason they're declared _within_ memset_io() is to prevent people
> from using them by hiding their declaration.  Moving them outside is
> an open invitation to stupid people starting to use them as an "oh it
> must be an official API".

If they're not intended for public use, they should (also) be prefixed
with "__" or even "____" to make this clear.

Gr{oetje,eeting}s,

                        Geert

--
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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