linux-kernel - Re: m68k build failure

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Message-ID: <20071201215602.7a4710d9@poseidon.drzeus.cx>
Date:	Sat, 1 Dec 2007 21:56:02 +0100
From:	Pierre Ossman <drzeus@...eus.cx>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Al Viro <viro@....linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Marcel Holtmann <marcel@...tmann.org>,
	linux-kernel@...r.kernel.org
Subject: Re: m68k build failure

On Wed, 28 Nov 2007 13:34:02 +0100 (CET)
Geert Uytterhoeven <geert@...ux-m68k.org> wrote:

> On Wed, 28 Nov 2007, Pierre Ossman wrote:
> > 
> > Is there no directive we can stick in there that forces a reasonable alignment (e.g. alignment == sizeof(type)) independently of arch?
> 
> We could use something like is used for compat_*.
> E.g. compare compat_s64 in <asm/compat.h> for x86 and powerpc.
> 

Yeah, that could work. Have a header with stuff like this:

typedef u16 __attribute__((aligned(2))) aligned_u16;
typedef u32 __attribute__((aligned(4))) aligned_u32;

and let all structures in mod_devicetable.h use those types.

Now does anyone have the time to code and test this?

Rgds
Pierre

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