linux-kernel - Re: [PATCH] Declare PIO_CMAP/GIO

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Date:	Mon, 16 Feb 2009 12:23:18 -0500
From:	Bill Nottingham <notting@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Jiri Kosina <jkosina@...e.cz>, Alan Cox <alan@...rguk.ukuu.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Declare PIO_CMAP/GIO_CMAP as compatbile ioctls.

(dropping trivial@ and stable@ cc's)

Andrew Morton (akpm@...ux-foundation.org) said: 
> On Wed, 11 Feb 2009 14:41:25 +0100 (CET) Jiri Kosina <jkosina@...e.cz> wrote:
> 
> > On Tue, 10 Feb 2009, Bill Nottingham wrote:
> > 
> > > Otherwise, these don't work when called from 32-bit userspace on 64-bit kernels.
> 
> Bill, please remember to add signoffs?  This should all be scripted.

I would have expected that that would be the default in 'git format-patch'.
Will keep note of that for the future.

> > Could you please give your Acked-by for it so that I can 
> > merge, or take it through your tree completely?
> 
> afaict this fix is needed all the way back to 2.6.tiny.  I merged it
> with 2.6.29 intentions.  Also tagged as needed in 2.6.25.x and later.

So, is there some way to do static analysis on the kernel source to
find *all* ioctls that aren't marked as compatible, and don't have
specific compat handlers?

Bill
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