linux-kernel - Re: [RFC] [PATCH] Fix b43 driver build for arm

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Message-ID: <20080218223410.GD23181@flint.arm.linux.org.uk>
Date:	Mon, 18 Feb 2008 22:34:10 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Michael Buesch <mb@...sch.de>
Cc:	Gordon Farquharson <gordonfarquharson@...il.com>,
	linux-kernel@...r.kernel.org, linville@...driver.com,
	stefano.brivio@...imi.it
Subject: Re: [RFC] [PATCH] Fix b43 driver build for arm

On Mon, Feb 18, 2008 at 11:24:44PM +0100, Michael Buesch wrote:
> On Monday 18 February 2008 23:13:24 Russell King wrote:
> > On Mon, Feb 18, 2008 at 11:08:56PM +0100, Michael Buesch wrote:
> > > On Monday 18 February 2008 23:03:10 Gordon Farquharson wrote:
> > > > The b43 driver in 2.6.25-rc[12] fails to build for arm on an x86_64
> > > > box using a cross-compiler:
> > > > 
> > > > FATAL: drivers/net/wireless/b43/b43: sizeof(struct ssb_device_id)=6 is
> > > > not a modulo of the size of section __mod_ssb_device_table=64.
> > > > Fix definition of struct ssb_device_id in mod_devicetable.h
> > > 
> > > Why does ARM have this special requirement and what is it about?
> > 
> > Because ARM is a 32 bit architecture.
> 
> Ehm, I didn't see this warning on any other architecture nor did we
> have _any_ problem with it on any other architecture.
> This code runs fine on x86_32, x86_64, powerpc and mips, at least.

Well, don't expect this driver to work until you fix your broken
assumptions about alignment requirements.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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