From: Michael Hunold <hunold@convergence.de>
To: linux-kernel@vger.kernel.org
Subject: [RFC][2.5] generic_usercopy() function
Date: Fri, 23 May 2003 11:32:07 +0200 [thread overview]
Message-ID: <3ECDEA97.8070004@convergence.de> (raw)
Hello all,
especially the Video4Linux-driver rely intensively on the
video_usercopy() function, which handles the copying of userspace
arguments of ioctls with a simply callback mechanism.
Recently the dvb-core has been added which needs the same function.
Because of the fact that the core is independent of Video4Linux, the
code was duplicated to a dvb_usercopy() function.
In order to prevent this code duplication, introducing a
generic_usercopy() function to lib/ is one possibilty.
The appended 4 patches do the following:
01-introduce.diff:
- remove video_usercopy() from videodev.c
- add generic_usercopy() to "lib/usecopy.c" and update the build system
02-video.diff:
- change all users of video_usercopy() to use generic_usercopy() instead
03-radio.diff:
- change all users of video_usercopy() to use generic_usercopy() instead
04-dvb.diff
- remove dvb_usercopy() from the dvb core and fix it to use
generic_usercopy() instead.
The diffs are against 2.5.69.
Comments are very appreciated. 8-)
Is there a possibility to get this into the kernel?
CU
Michael.
reply other threads:[~2003-05-23 9:19 UTC|newest]
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