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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Huang Ying <ying.huang@intel.com>
Cc: Len Brown <lenb@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Andi Kleen <andi@firstfloor.org>,
	"Luck, Tony" <tony.luck@intel.com>,
	"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>
Subject: Re: [PATCH] ACPI, APEI, Add APEI _OSC support
Date: Thu, 16 Jun 2011 02:57:36 +0100	[thread overview]
Message-ID: <20110616015736.GA32533@srcf.ucam.org> (raw)
In-Reply-To: <4DF962AE.60204@intel.com>

On Thu, Jun 16, 2011 at 09:55:58AM +0800, Huang Ying wrote:
> On 06/16/2011 09:38 AM, Matthew Garrett wrote:
> > I think we probably need to make the HEST decision early, and use that 
> > to decide how to make the generic call. Our experience has been that 
> > many firmware vendors only expect _OSC to be called once with any given 
> > UUID - multiple calls can result in unexpected behaviour.
> 
> acpi_bus_osc_support is called via subsys_initcall.  It is a little hard
> to do all checking before that.  Is it possible to call
> acpi_bus_osc_support later?

Yeah, this is going to be a problem. We have the HEST available at this 
point so we ought to be able to parse it, though. I'll take a look 
tomorrow.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

  reply	other threads:[~2011-06-16  1:57 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-25  6:05 [PATCH] ACPI, APEI, Add APEI _OSC support Huang Ying
2011-06-13 14:50 ` Don Zickus
2011-06-14  6:33   ` Chen Gong
2011-06-14 12:11     ` Don Zickus
2011-06-14 14:52 ` Matthew Garrett
2011-06-15  3:53   ` Huang Ying
2011-06-15 12:17     ` Matthew Garrett
2011-06-16  0:40       ` Huang Ying
2011-06-16  1:38         ` Matthew Garrett
2011-06-16  1:55           ` Huang Ying
2011-06-16  1:57             ` Matthew Garrett [this message]
2011-06-17  0:57               ` Huang Ying
2011-06-17  1:34                 ` Matthew Garrett
2011-06-17  1:40                   ` Huang Ying
2011-06-17  1:42                     ` Matthew Garrett
2011-06-17  1:53                       ` Huang Ying
2011-06-16  9:00           ` Rafael J. Wysocki

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