Re: linux-next: build failure after merge of the aio tree

From: Geert Uytterhoeven
Date: Fri Jan 29 2016 - 07:03:46 EST


On Fri, Jan 29, 2016 at 12:30 PM, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxxx> wrote:
>> Background: new aio code is adding __get_user() calls referencing 64
>> bit quantities (__u64 and __s64).
>
> There's lots more architectures which do not support 64-bit get_user()
> _or_ __get_user(): avr32, blackfin, metag for example, and m68k which
> has this interesting thing "/* case 8: disabled because gcc-4.1 has a
> broken typeof \" in its *get_user() implementation.

And if you enable it again, you get lots of "warning: cast to pointer from
integer of different size", like you mentioned.

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