linux-kernel - Re: [PATCH] types.h: define __aligned

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Message-Id: <201010151051.05241.arnd@arndb.de>
Date:	Fri, 15 Oct 2010 10:51:04 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Eric Paris <eparis@...hat.com>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	jengelh@...ozas.de, davem@...emloft.net, andi@...stfloor.org
Subject: Re: [PATCH] types.h: define __aligned_u64 and expose to userspace

On Friday 15 October 2010 06:24:55 Eric Paris wrote:
> We currently have a kernel internal type called aligned_u64 which aligns
> __u64's on 8 bytes boundaries even on systems which would normally align
> them on 4 byte boundaries.  This patch creates a new type __aligned_u64
> which does the same thing but which is exposed to userspace rather than
> being kernel internal.
> 
> Based-on-patch-by: Andreas Gruenbacher <agruen@...e.de>
> Signed-off-by: Eric Paris <eparis@...hat.com>

We should have done this long ago.

Acked-by: Arnd Bergmann <arnd@...db.de>

BTW, why a define, not a typedef? Probably doesn't really matter in the end,
I just wonder if the define has any advantages here.

	Arnd
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