linux-kernel - Re: [PATCH 13/27] m68k: Use common bits from generic tlb.h

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Message-ID: <CAMuHMdVWp8-aByVf+7M=8HEXXJRJBbZLdfj1v0rgDU-UEQM=8Q@mail.gmail.com>
Date:	Wed, 14 May 2014 21:34:34 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Richard Weinberger <richard@....at>
Cc:	Linux-Arch <linux-arch@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-m68k <linux-m68k@...ts.linux-m68k.org>
Subject: Re: [PATCH 13/27] m68k: Use common bits from generic tlb.h

Hi Richard,

On Wed, May 14, 2014 at 9:26 PM, Richard Weinberger <richard@....at> wrote:
>> But why this sudden #ifdef checks?
>
> They are needed because in pgalloc.h you have:
> #ifdef CONFIG_MMU
> #include <asm/virtconvert.h>
> #if defined(CONFIG_COLDFIRE)
> #include <asm/mcf_pgalloc.h>
> #elif defined(CONFIG_SUN3)
> #include <asm/sun3_pgalloc.h>
> #else
> #include <asm/motorola_pgalloc.h>
> #endif
>
> And only asm/motorola_pgalloc.h have __pte/pmd_free_tlb as static inline functions.
> Therefore we need to define them such that the generic tlb.h versions will not clash
> with yours.

Thanks for the clarification!

Perhaps this deserves a comment:

/* Applies to Classic m68k MMU only */

Gr{oetje,eeting}s,

                        Geert

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