> Hello!
>
> I have taken the example code of interaction (data transfering) between user
> and kernel space through /proc filesystem at:
>
> http://metalab.unc.edu/LDP/LDP/lkmpg/node17.html
>
> But, it failed to run on my linux (kernel 2.2.3) when I done 'insmod procfs.o'
> with next errors:
>
> procfs.o: unresolved symbol __put_user_X
> procfs.o: unresolved symbol __get_user_X
>
Sometime ago with a personal thread with Linus, he says to me that the
functions put_user and get_user should never be used, except when you know
what really are you doing, these functions doesn't have a range check and
you need to use a verify_area() before. So use the new 2.2.x
copy_from_user and copy_to_user, examples of utilization can be found at
http://www.atnf.csiro.au/~rgooch/linux/docs/porting-to-2.2.html
-- Augusto Cesar Radtke Sekure SDI http://www.sekure.org
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