Re: [PATCH] make vt_ioctl ix86isms explicit

James Simmons (jsimmons@infradead.org)
Sat, 24 May 2003 19:03:29 +0100 (BST)


> > sys_ioperm is only implemented on x86 (i386/x86_64). Make the
> > ifdefs in vt_ioctl.c more explicit so the other architectures can
> > get rid of their stubs in favour of just using sys_ni_syscall in
> > the syscall table. (Personally I still wonder why they added it
> > at all but that's another question..)
>
> They were added because this was how the X server got IO permissions a
> million years ago. It comes from some random old UNIX/386 thing, it
> predates Linux itself as far as I know.
>
> I'm fairly certain that X itself no longer uses it at all, but there may
> be other programs that still do (unlikely). Your patch looks sane,
> although it might be equally sane to just remove the code altogether.

I suggest we remove it. It was the old way to access the VGA register
ports.

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