linux-kernel - Re: [PATCH v2] ARM: Use udiv/sdiv for __aeabi

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Date:	Mon, 11 Nov 2013 08:46:33 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Måns Rullgård <mans@...sr.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	linux-kernel@...r.kernel.org,
	Christopher Covington <cov@...eaurora.org>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Subject: Re: [PATCH v2] ARM: Use udiv/sdiv for __aeabi_{u}idiv library
 functions

Hello,

On Fri, Nov 08, 2013 at 03:00:32PM -0800, Stephen Boyd wrote:
> diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
> index bd454b0..38621729 100644
> --- a/arch/arm/lib/Makefile
> +++ b/arch/arm/lib/Makefile
> @@ -15,6 +15,12 @@ lib-y		:= backtrace.o changebit.o csumipv6.o csumpartial.o   \
>  		   io-readsb.o io-writesb.o io-readsl.o io-writesl.o  \
>  		   call_with_stack.o
>  
> +lib-$(CONFIG_CPU_V7) += div-v7.o
CPU_V7M could make use of that, too.
(If you follow Nico's advice to use runtime patching I cannot test it
for you on v7-M though as my machine has to use an XIP kernel.)

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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