linux-kernel - Re: [PATCH/RFC v5] introduce HAVE_EFFICIENT_UNALIGNED

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Message-Id: <1207131865.10910.30.camel@johannes.berg>
Date:	Wed, 02 Apr 2008 12:24:25 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	David Miller <davem@...emloft.net>
Cc:	sam@...nborg.org, dsd@...too.org, linux-kernel@...r.kernel.org,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	Ingo Molnar <mingo@...e.hu>,
	David Woodhouse <dwmw2@...radead.org>
Subject: Re: [PATCH/RFC v5] introduce HAVE_EFFICIENT_UNALIGNED_ACCESS
	Kconfig symbol


On Tue, 2008-03-25 at 15:11 +0100, Johannes Berg wrote:
> In many cases, especially in networking, it can be beneficial to
> know at compile time whether the architecture can do unaligned
> accesses efficiently. This patch introduces a new Kconfig symbol
> 	HAVE_EFFICIENT_UNALIGNED_ACCESS
> for that purpose and adds it to the powerpc and x86 architectures.
> Also add some documentation about alignment and networking, and
> especially one intended use of this symbol.

I haven't had comments on this last version, any objections to sending
it to akpm for inclusion? I would like to start building on it in the
wireless tree.

Also, what's the best way to get arch maintainers to note this and
evaluate whether they want to set the symbol or not?

johannes

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