linux-kernel - Re: [PATCH 2/6]: powerpc/cell spidernet low watermark patch.

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Message-Id: <20060823.150314.41637066.davem@davemloft.net>
Date:	Wed, 23 Aug 2006 15:03:14 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	linas@...tin.ibm.com
Cc:	arnd@...db.de, benh@...nel.crashing.org, netdev@...r.kernel.org,
	jklewis@...ibm.com, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org
Subject: Re: [PATCH 2/6]: powerpc/cell spidernet low watermark patch.

From: linas@...tin.ibm.com (Linas Vepstas)
Date: Wed, 23 Aug 2006 16:36:42 -0500

> I could create a searate patch to change struct descr {} to split 
> the u32 into several u8's; there's a dozen spots that get touched.
> 
> Alternatel, I could do a cheesy cast to char[4] and access that way.
> Opinions?

The most portable scheme would be a "u32/u8[4]" union with
appropriate endianness checks when determining which byte
to access in the u8[] view.
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