linux-kernel - Re: powerpc: introduce asm/swab.h

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Date:	Wed, 07 Jan 2009 00:19:07 -0500 (EST)
From:	Nicolas Pitre <nico@....org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Harvey Harrison <harvey.harrison@...il.com>
Subject: Re: powerpc: introduce asm/swab.h

On Tue, 6 Jan 2009, Linus Torvalds wrote:

> 
> 
> On Wed, 7 Jan 2009, Benjamin Herrenschmidt wrote:
> > 
> > Even if fixing that to use __swab32() instead, then it fails because
> > this is defined after it's used. I worked around it using fswab in
> > there instead.
> 
> That's the same patch I just sent out (but you changed comments too), so I 
> obviously agree. 
> 
> x86 didn't see this (even in 32-bit mode) because it doesn't use that odd 
> __SWAB_64_THRU_32__ case, but does the 64-bit swab with native code.
> 
> Can you also verify that it works for you (not just compiles), just so 
> that I can commit it?

Tested OK on ARM (using LE mode with networking, etc.)


Nicolas
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