Re: [RFC] Enable ARCH_USE_BUILTIN_BSWAP by default

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On Thu, Oct 29, 2015 at 4:06 AM, David Woodhouse <dwmw2@xxxxxxxxxxxxx> wrote:
> On Wed, 2015-10-28 at 18:44 -0700, David Miller wrote:
>> From: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
>> Date: Wed, 28 Oct 2015 23:53:52 +0900
>>
>> > I know MIPS will need some additional libgcc functionality brought
>> > into the kernel, and Ralf has already been looking at that; not
>> sure
>> > about other platforms. Let's find out :)
>>
>> It should properly build on Sparc, but I still need to do my due
>> diligence to see if gcc will actually emit the little-endian loads
>> and stores or not...
>
> The results of the 0-day test (thanks Fengguang) seem to indicate that
> we need an implementation of __bswapdi2 and __bswapsi2 on SPARC, as
> well as blackfin, frv, m32r, m68k, microblaze, mips, mn10300, parisc
> and sh.

Please note that for m68k only m68k-m5475evb_defconfig failed, so
it seems to be compiler/config specific.

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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