just to add one more detail -- your comparison with /proc/irq is
superficial, i.e. only looks the same on the surface but not when you look
in depth. The case with /proc/irq was a bug whilst here we have a design
that dictates this behavior (but can possibly be worked around)
On Sun, 15 Oct 2000, Tigran Aivazian wrote:
> Hi David,
>
> Yes, this is a well-known problem and was briefly discussed between Rick
> Faith, Al Viro and myself. The thing is that DRI design dictates
> duplication of the code instead of sharing it between individual low-level
> drivers (this is not silly -- there are lots of valid reasons for this as
> was explained to me by Rick Faith) and this makes it rather clumsy to
> share a common /proc entry as you can see from a little hack there which
> used to work some time ago.
>
> So, one either needs to enhance the hack to work today (Rick's suggestion)
> or to write a "drmfs" (Al Viro's suggestion) or to abandon the original
> design of not-sharing the code and do share it (my suggestion but of
> course it's up to Rick and other maintainers of that code -- they know
> better how to make their own life easier).
>
> Regards,
> Tigran
>
> On Mon, 16 Oct 2000, FORT David wrote:
>
> > Hi,
> > I've just got a look at file drivers/char/drm/proc.c, correct me if i'm
> > wrong but
> > when registering using "drm_proc_init" each device supporting drm
> > duplicates the dri dir entry, as "create_proc_entry " blindly create a
> > new dri entry even if one already exists.
> >
> > IIRC a few month ago the same kind of error was occuring in /proc/irq,
> > perhaps we should check in
> > create_proc_entry that an entry exists before creating it, this could
> > prevent each driver from doing this
> > job.
> >
> > --
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> >
> >
>
>
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