linux-kernel - Re: undeprecate raw driver.

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Date:	Sun, 13 May 2007 18:35:45 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Dave Jones <davej@...hat.com>
cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: undeprecate raw driver.


On May 13 2007 12:32, Dave Jones wrote:

>Despite repeated attempts over the last two and half years, this driver
>seems somewhat persistant.  Remove its deprecated status as it has
>existing users who may not be in a position to migrate their apps
>to O_DIRECT.
>
>Signed-off-by: Dave Jones <davej@...hat.com>
>
>diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
>index 498ff31..5108619 100644
>--- a/Documentation/feature-removal-schedule.txt
>+++ b/Documentation/feature-removal-schedule.txt
>@@ -41,14 +41,6 @@ Who:	Pavel Machek <pavel@...e.cz>
> 
> ---------------------------
> 
>-What:	RAW driver (CONFIG_RAW_DRIVER)
>-When:	December 2005
>-Why:	declared obsolete since kernel 2.6.3
>-	O_DIRECT can be used instead
>-Who:	Adrian Bunk <bunk@...sta.de>
>-
>----------------------------
>-
> What:	raw1394: requests of type RAW1394_REQ_ISO_SEND, RAW1394_REQ_ISO_LISTEN
> When:	June 2007
> Why:	Deprecated in favour of the more efficient and robust rawiso interface.
>diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
>index abcafac..1e4d688 100644
>--- a/drivers/char/Kconfig
>+++ b/drivers/char/Kconfig
>@@ -993,15 +993,14 @@ config GPIO_VR41XX
> 	depends on CPU_VR41XX
> 
> config RAW_DRIVER
>-	tristate "RAW driver (/dev/raw/rawN) (OBSOLETE)"
>+	tristate "RAW driver (/dev/raw/rawN)"
> 	depends on BLOCK
> 	help
>-	  The raw driver permits block devices to be bound to /dev/raw/rawN. 
>-	  Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O. 
>+	  The raw driver permits block devices to be bound to /dev/raw/rawN.
>+	  Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O.
> 	  See the raw(8) manpage for more details.
> 
>-          The raw driver is deprecated and will be removed soon.
>-          Applications should simply open the device (eg /dev/hda1)
>+          Applications should preferably open the device (eg /dev/hda1)
>           with the O_DIRECT flag.
> 
> config MAX_RAW_DEVS

At least keep the "it's obsolete" Kconfig description. We
don't want new users/projects to jump on /dev/raw.



	Jan
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