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>
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [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: 54+ 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 22:01 ` Rob Clark
2012-11-15 22:22 ` Nicolas Pitre
2012-11-15 22:22 ` Nicolas Pitre
2012-11-16 8:18 ` Arnd Bergmann [this message]
2012-11-16 8:18 ` Arnd Bergmann
-- strict thread matches above, loose matches on Subject: below --
2012-11-13 15:00 Rob Clark
2012-11-13 15:00 ` Rob Clark
2012-11-09 21:17 Rob Clark
2012-11-09 21:17 ` Rob Clark
2012-11-12 10:46 ` Will Deacon
2012-11-12 10:46 ` Will Deacon
2012-11-12 13:46 ` Rob Clark
2012-11-12 13:46 ` Rob Clark
2012-11-12 14:38 ` Will Deacon
2012-11-12 14:38 ` Will Deacon
2012-11-12 15:09 ` Rob Clark
2012-11-12 15:09 ` Rob Clark
2012-11-12 19:27 ` Russell King - ARM Linux
2012-11-12 19:27 ` Russell King - ARM Linux
2012-11-12 19:58 ` Rob Clark
2012-11-12 19:58 ` Rob Clark
2012-11-12 23:08 ` Russell King - ARM Linux
2012-11-12 23:08 ` Russell King - ARM Linux
2012-11-12 23:33 ` Rob Clark
2012-11-12 23:33 ` Rob Clark
2012-11-12 23:53 ` Russell King - ARM Linux
2012-11-12 23:53 ` Russell King - ARM Linux
2012-11-13 0:31 ` Rob Clark
2012-11-13 0:31 ` Rob Clark
2012-11-13 9:11 ` Arnd Bergmann
2012-11-13 9:11 ` Arnd Bergmann
2012-11-13 11:24 ` Russell King - ARM Linux
2012-11-13 11:24 ` Russell King - ARM Linux
2012-11-15 9:19 ` Arnd Bergmann
2012-11-15 9:19 ` Arnd Bergmann
2012-11-15 13:04 ` Rob Clark
2012-11-15 13:04 ` Rob Clark
2012-11-15 13:39 ` Arnd Bergmann
2012-11-15 13:39 ` Arnd Bergmann
2012-11-15 13:46 ` Rob Clark
2012-11-15 13:46 ` Rob Clark
2012-11-15 14:39 ` Arnd Bergmann
2012-11-15 14:39 ` Arnd Bergmann
2012-11-19 14:32 ` Ville Syrjälä
2012-11-19 14:32 ` Ville Syrjälä
2012-11-19 14:48 ` Russell King - ARM Linux
2012-11-19 14:48 ` Russell King - ARM Linux
2012-11-19 14:48 ` Russell King - ARM Linux
2012-11-19 15:18 ` Ville Syrjälä
2012-11-19 15:18 ` Ville Syrjälä
2012-11-19 15:18 ` Ville Syrjälä
2012-11-13 11:04 ` Russell King - ARM Linux
2012-11-13 11:04 ` Russell King - ARM Linux
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=201211160818.01302.arnd@arndb.de \
--to=arnd@arndb.de \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=patches@linaro.org \
--cc=rmk+kernel@arm.linux.org.uk \
--cc=rob.clark@linaro.org \
--cc=rob@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.