linux-kernel - Re: [PATCH] drivers/bus: arm-cci: fix combined ARMv6+v7 build

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Message-ID: <9496903.tJWqnjnUVv@wuerfel>
Date:	Mon, 03 Jun 2013 15:28:07 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Nicolas Pitre <nicolas.pitre@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Dave Martin <dave.martin@...aro.org>, arm@...nel.org
Subject: Re: [PATCH] drivers/bus: arm-cci: fix combined ARMv6+v7 build

On Monday 03 June 2013 09:23:58 Nicolas Pitre wrote:
> On Mon, 3 Jun 2013, Arnd Bergmann wrote:
> 
> > When we build a kernel with support for both ARMv6 and ARMv7,
> > gas is trying to be helpful by pointing out that the arm-cci
> > driver would not work on ARMv6:
> > 
> > /tmp/ccu1LDeU.s: Assembler messages:
> > /tmp/ccu1LDeU.s:450: Error: selected processor does not support ARM mode `wfi '
> > /tmp/ccu1LDeU.s:451: Error: selected processor does not support ARM mode `wfe '
> > make[4]: *** [drivers/bus/arm-cci.o] Error 1
> > 
> > We know that the driver will only be used on ARMv7, hence we
> > can annotate the inline assembly listing to allow those instructions.
> > 
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> > Cc: Nicolas Pitre <nico@...aro.org>
> > Cc: Dave Martin <dave.martin@...aro.org>
> 
> Acked-by: Nicolas Pitre <nico@...aro.org>

Thanks

> Since this code is merged into ARM-SOC, I assume you'll take care of 
> this patch?

Yes, I applied it on top of the next/soc branch now.

	Arnd
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