linux-kernel - Re: [PATCH] x86: EuroBraille/Iris power off

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Date:	Mon, 13 Sep 2010 17:25:11 +0200
From:	Shérab <Sebastien.Hinderer@...-lyon.org>
To:	Valdis.Kletnieks@...edu
Cc:	"H. Peter Anvin" <hpa@...or.com>, Len Brown <lenb@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Andres Salomon <dilinger@...ued.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Samuel Thibault <Samuel.Thibault@...-lyon.org>
Subject: Re: [PATCH] x86: EuroBraille/Iris power off

Hi,

> Is it actually safe to assume that this will do the right thing on a machine that
> is a non-Iris that has something *else* at that I/O  address?

No it's probably not safe.

> Any further sanity checking we can do?

I have asked the manufacturer and will be happy to provide patches to
implement them but I doubt there will be some.

> (For that matter, are there machines that will get indigestion
> at this sort of unexpected inb() access?)

That, I don't know.

Shérab.
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