From: Arnd Bergmann <arnd@arndb.de>
To: Rob Clark <rob.clark@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org, patches@linaro.org,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
dri-devel@lists.freedesktop.org,
Russell King <rmk+kernel@arm.linux.org.uk>,
Rob Clark <rob@ti.com>
Subject: Re: [PATCH] ARM: add get_user() support for 8 byte types
Date: Fri, 16 Nov 2012 08:18:01 +0000 [thread overview]
Message-ID: <201211160818.01302.arnd@arndb.de> (raw)
In-Reply-To: <1353016879-15007-1-git-send-email-rob.clark@linaro.org>
On Thursday 15 November 2012, Rob Clark wrote:
>
> From: Rob Clark <rob@ti.com>
>
> A new atomic modeset/pageflip ioctl being developed in DRM requires
> get_user() to work for 64bit types (in addition to just put_user()).
>
> v1: original
> v2: pass correct size to check_uaccess, and better handling of narrowing
> double word read with __get_user_xb() (Russell King's suggestion)
> v3: explain in comment about why this works for narrowing fetch to 1,
> 2, or 4 byte type on ARM.
>
> Signed-off-by: Rob Clark <rob@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
next prev parent reply other threads:[~2012-11-16 8:18 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-15 22:01 [PATCH] ARM: add get_user() support for 8 byte types Rob Clark
2012-11-15 22:22 ` Nicolas Pitre
2012-11-16 8:18 ` Arnd Bergmann [this message]
-- strict thread matches above, loose matches on Subject: below --
2012-11-13 15:00 Rob Clark
2012-11-09 21:17 Rob Clark
2012-11-12 10:46 ` Will Deacon
2012-11-12 13:46 ` Rob Clark
2012-11-12 14:38 ` Will Deacon
2012-11-12 15:09 ` Rob Clark
2012-11-12 19:27 ` Russell King - ARM Linux
2012-11-12 19:58 ` Rob Clark
2012-11-12 23:08 ` Russell King - ARM Linux
2012-11-12 23:33 ` Rob Clark
2012-11-12 23:53 ` Russell King - ARM Linux
2012-11-13 0:31 ` Rob Clark
2012-11-13 9:11 ` Arnd Bergmann
2012-11-13 11:24 ` Russell King - ARM Linux
2012-11-15 9:19 ` Arnd Bergmann
2012-11-15 13:04 ` Rob Clark
2012-11-15 13:39 ` Arnd Bergmann
2012-11-15 13:46 ` Rob Clark
2012-11-15 14:39 ` Arnd Bergmann
2012-11-19 14:32 ` Ville Syrjälä
2012-11-19 14:48 ` Russell King - ARM Linux
2012-11-19 15:18 ` Ville Syrjälä
2012-11-13 11:04 ` Russell King - ARM Linux
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