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From: David Howells <dhowells@redhat.com>
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Subject: Re: [PATCH 1/4] LOG2: Implement a general integer log2 facility in the kernel [try #4] 
Date: Mon, 09 Oct 2006 09:06:08 +0100
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Sender: linux-arch-owner@vger.kernel.org
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Matthew Wilcox <matthew@wil.cx>, torvalds@osdl.org, akpm@osdl.org, sfr@canb.auug.org.au, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
List-ID: <linux-arch.vger.kernel.org>

Jan Engelhardt <jengelh@linux01.gwdg.de> wrote:

> >Were you planning on porting Linux to a machine with non-8-bit-bytes any
> >time soon?  Because there's a lot more to fix than this.
> 
> I am considering the case [assuming 8-bit-byte machines] where 
> sizeof(u32) is not 4. Though I suppose GCC will probably make a 32-bit 
> type up if the hardware does not know one.

If the machine has 8-bit bytes, how can sizeof(u32) be anything other than 4?

David