linux-kernel - Re: [PATCH 03/17] ARM: mark const init data with __initconst instead of _

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Message-ID: <20120330043456.GL7757@game.jcrosoft.org>
Date:	Fri, 30 Mar 2012 06:34:56 +0200
From:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	kernel@...gutronix.de, Andrew Victor <linux@...im.org.za>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Russell King <linux@....linux.org.uk>,
	Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	Lennert Buytenhek <kernel@...tstofly.org>,
	Nicolas Pitre <nico@...xnic.net>,
	Eric Miao <eric.y.miao@...il.com>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	David Brown <davidb@...eaurora.org>,
	Daniel Walker <dwalker@...o99.com>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Tony Lindgren <tony@...mide.com>,
	Barry Song <baohua.song@....com>, Andrew Lunn <andrew@...n.ch>,
	Lucas De Marchi <lucas.demarchi@...fusion.mobi>,
	linux-arm-kernel@...ts.infradead.org,
	davinci-linux-open-source@...ux.davincidsp.com,
	linux-samsung-soc@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-omap@...r.kernel.org
Subject: Re: [PATCH 03/17] ARM: mark const init data with __initconst
 instead of __initdata

On 23:12 Thu 29 Mar     , Uwe Kleine-König wrote:
> As long as there is no other non-const variable marked __initdata in the
> same compilation unit it doesn't hurt. If there were one however
> compilation would fail with
> 
> 	error: $variablename causes a section type conflict
> 
> because a section containing const variables is marked read only and so
> cannot contain non-const variables.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> Cc: Andrew Victor <linux@...im.org.za>
> Cc: Nicolas Ferre <nicolas.ferre@...el.com>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
> Cc: Russell King <linux@....linux.org.uk>
> Cc: Sekhar Nori <nsekhar@...com>
> Cc: Kevin Hilman <khilman@...com>
> Cc: Kukjin Kim <kgene.kim@...sung.com>
> Cc: Sascha Hauer <kernel@...gutronix.de>
> Cc: Shawn Guo <shawn.guo@...aro.org>
> Cc: Lennert Buytenhek <kernel@...tstofly.org>
> Cc: Nicolas Pitre <nico@...xnic.net>
> Cc: Eric Miao <eric.y.miao@...il.com>
> Cc: Haojian Zhuang <haojian.zhuang@...il.com>
> Cc: David Brown <davidb@...eaurora.org>
> Cc: Daniel Walker <dwalker@...o99.com>
> Cc: Bryan Huntsman <bryanh@...eaurora.org>
> Cc: Tony Lindgren <tony@...mide.com>
> Cc: Barry Song <baohua.song@....com>
> Cc: Andrew Lunn <andrew@...n.ch>
> Cc: Lucas De Marchi <lucas.demarchi@...fusion.mobi>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: davinci-linux-open-source@...ux.davincidsp.com
> Cc: linux-samsung-soc@...r.kernel.org
> Cc: linux-arm-msm@...r.kernel.org
> Cc: linux-omap@...r.kernel.org
> ---
>  arch/arm/mach-at91/board-dt.c                 |    2 +-
>  arch/arm/mach-at91/clock.c                    |    2 +-
for at91
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>

Best Regards,
J.
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