linux-kernel - Re: [PATCH 17/19] x86, msi: Introduce x86_msi.compose_msi

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Message-ID: <20120821144256.GC20097@phenom.dumpdata.com>
Date:	Tue, 21 Aug 2012 10:42:57 -0400
From:	Konrad Rzeszutek Wilk <konrad@...nel.org>
To:	Joerg Roedel <joerg.roedel@....com>
Cc:	x86@...nel.org, linux-kernel@...r.kernel.org, joro@...tes.org,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Yinghai Lu <yinghai@...nel.org>
Subject: Re: [PATCH 17/19] x86, msi: Introduce x86_msi.compose_msi_msg
 call-back

On Tue, Aug 21, 2012 at 10:40:07AM +0200, Joerg Roedel wrote:
> On Mon, Aug 20, 2012 at 10:08:44AM -0400, Konrad Rzeszutek Wilk wrote:
> > On Mon, Aug 20, 2012 at 03:56:03PM +0200, Joerg Roedel wrote:
> > > This call-back points to the right function for initializing
> > > the msi_msg structure.
> > 
> > What is the 'hpet_id' purpose in this?
> 
> The VT-d implementation uses it. This function is used to create the MSI
> message for PCI devices and the HPET. When it is called for the HPET the
> pdev parameter is NULL and hpet_id is valid.

Perhaps then a more generic term? 'void *platform_priv' ?
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