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Date: Mon, 23 Feb 2015 11:28:12 +0100
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Subject: Re: Build regressions/improvements in v4.0-rc1
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Arnd Bergmann <arnd@arndb.de>
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On Mon, Feb 23, 2015 at 11:24 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Monday 23 February 2015 10:14:55 Geert Uytterhoeven wrote:
>> On Mon, Feb 23, 2015 at 10:03 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>> >> >   + /home/kisskb/slave/src/fs/dax.c: error: implicit declaration of function 'copy_user_page' [-Werror=implicit-function-declaration]:  => 266:2

> I checked the other architectures, and found that the same is missing on
> ARC, so we should add both:
>
> diff --git a/fs/Kconfig b/fs/Kconfig
> index ec35851e5b71..a24d496787d6 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -36,7 +36,7 @@ source "fs/nilfs2/Kconfig"
>  config FS_DAX
>         bool "Direct Access (DAX) support"
>         depends on MMU
> -       depends on !(ARM || MIPS || SPARC)
> +       depends on !(ARC || ARM || MIPS || SH || SPARC)
>         help
>           Direct Access (DAX) can be used on memory-backed block devices.
>           If the block device supports DAX and the filesystem supports DAX,
>
>
> It's also not implemented on c6x and blackfin, but both of them have
> MMU=n, so they are already excluded.

Exactly.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

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