lkml.org 
[lkml]   [2003]   [May]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject[RFC][2.5] generic_usercopy() function
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.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:35    [W:0.098 / U:0.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site