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From: Arnd Bergmann <arnd@arndb.de>
To: Dave Martin <dave.martin@linaro.org>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>,
	linux-arm-kernel@lists.infradead.org,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Nicolas Pitre <nicolas.pitre@linaro.org>,
	Tony Lindgren <tony@atomide.com>,
	linux-omap@vger.kernel.org, Jean Pihet-XID <j-pihet@ti.com>
Subject: Re: [PATCH v2] ARM: Define wfi() macro for v6 processors
Date: Tue, 8 Feb 2011 16:17:58 +0100	[thread overview]
Message-ID: <201102081617.59092.arnd@arndb.de> (raw)
In-Reply-To: <AANLkTim90DF1pE0As_vNO-c4dn7S=2jVq+hkRo8CYsx4@mail.gmail.com>

On Tuesday 08 February 2011, Dave Martin wrote:
> CFLAGS_cpu_specific_object.o        += -march=armv7-a
> 
> Whether it's safe to do it depends on whether code from that file
> could ever get run on other processors.  I'm not so sure of the answer
> to that..., but perhaps someone else has a better idea.

We already do this a lot from arch/arm/mm/Makefile, and those
files are typically just one function per file, so they can easily
be proven to be safe that way.

	Arnd

WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] ARM: Define wfi() macro for v6 processors
Date: Tue, 8 Feb 2011 16:17:58 +0100	[thread overview]
Message-ID: <201102081617.59092.arnd@arndb.de> (raw)
In-Reply-To: <AANLkTim90DF1pE0As_vNO-c4dn7S=2jVq+hkRo8CYsx4@mail.gmail.com>

On Tuesday 08 February 2011, Dave Martin wrote:
> CFLAGS_cpu_specific_object.o        += -march=armv7-a
> 
> Whether it's safe to do it depends on whether code from that file
> could ever get run on other processors.  I'm not so sure of the answer
> to that..., but perhaps someone else has a better idea.

We already do this a lot from arch/arm/mm/Makefile, and those
files are typically just one function per file, so they can easily
be proven to be safe that way.

	Arnd

  reply	other threads:[~2011-02-08 15:18 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-08 11:01 [PATCH v2] ARM: Define wfi() macro for v6 processors Dave Martin
2011-02-08 11:01 ` Dave Martin
2011-02-08 11:08 ` Russell King - ARM Linux
2011-02-08 11:08   ` Russell King - ARM Linux
2011-02-08 11:16   ` Dave Martin
2011-02-08 11:16     ` Dave Martin
2011-02-08 12:11   ` Arnd Bergmann
2011-02-08 12:11     ` Arnd Bergmann
2011-02-08 12:13     ` Russell King - ARM Linux
2011-02-08 12:13       ` Russell King - ARM Linux
2011-02-08 12:53       ` Arnd Bergmann
2011-02-08 12:53         ` Arnd Bergmann
2011-02-08 14:45         ` Dave Martin
2011-02-08 14:45           ` Dave Martin
2011-02-08 14:54           ` Santosh Shilimkar
2011-02-08 14:54             ` Santosh Shilimkar
2011-02-08 15:09             ` Dave Martin
2011-02-08 15:09               ` Dave Martin
2011-02-08 15:17               ` Arnd Bergmann [this message]
2011-02-08 15:17                 ` Arnd Bergmann
2011-02-08 16:32                 ` Russell King - ARM Linux
2011-02-08 16:32                   ` Russell King - ARM Linux
2011-02-08 16:58                   ` Arnd Bergmann
2011-02-08 16:58                     ` Arnd Bergmann
2011-02-08 17:15                     ` Dave Martin
2011-02-08 17:15                       ` Dave Martin
2011-02-08 15:15           ` Arnd Bergmann
2011-02-08 15:15             ` Arnd Bergmann
2011-02-08 15:30             ` Dave Martin
2011-02-08 15:30               ` Dave Martin
2011-02-08 15:42               ` Arnd Bergmann
2011-02-08 15:42                 ` Arnd Bergmann
2011-02-08 16:21                 ` Dave Martin
2011-02-08 16:21                   ` Dave Martin
2011-02-09 10:07                   ` Arnd Bergmann
2011-02-09 10:07                     ` Arnd Bergmann
2011-02-08 16:25             ` Russell King - ARM Linux
2011-02-08 16:25               ` Russell King - ARM Linux
2011-02-08 16:31               ` Dave Martin
2011-02-08 16:31                 ` Dave Martin
2011-02-08 16:47               ` Arnd Bergmann
2011-02-08 16:47                 ` Arnd Bergmann
2011-02-08 16:55                 ` Russell King - ARM Linux
2011-02-08 16:55                   ` Russell King - ARM Linux
2011-02-08 17:00                   ` Dave Martin
2011-02-08 17:00                     ` Dave Martin
2011-02-08 16:20           ` Russell King - ARM Linux
2011-02-08 16:20             ` Russell King - ARM Linux
2011-02-08 16:28             ` Dave Martin
2011-02-08 16:28               ` Dave Martin
2011-02-08 12:22     ` Dave Martin
2011-02-08 12:22       ` Dave Martin
2011-02-08 12:31       ` Santosh Shilimkar
2011-02-08 12:31         ` Santosh Shilimkar

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