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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Len Brown <lenb@kernel.org>
Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org
Subject: Re: [PATCH 4/4] ACPI: Make sure the FADT is at least rev 2 before using the reset register
Date: Wed, 23 Mar 2011 10:59:06 +0000	[thread overview]
Message-ID: <20110323105906.GA29657@srcf.ucam.org> (raw)
In-Reply-To: <alpine.LFD.2.02.1103222354150.10549@x980>

On Wed, Mar 23, 2011 at 12:01:50AM -0400, Len Brown wrote:
>         if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER))
>                 return;
> 
> For it not to be redundant, there would have to be FADTs out there
> of revision 1 that set what was then a reserved bit in the flags.

Yes. You trust them not to have set reserved flags to random garbage?

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

  reply	other threads:[~2011-03-23 10:59 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-11 21:12 [PATCH 1/4] X86: Revamp reboot behaviour to match Windows more closely Matthew Garrett
2011-03-11 21:12 ` [PATCH 2/4] ACPICA: Fix access width for reset vector Matthew Garrett
2011-03-23  3:52   ` Len Brown
2011-03-11 21:12 ` [PATCH 3/4] ACPI: Bug compatibility for Windows on the ACPI reboot vector Matthew Garrett
2011-03-23  3:52   ` Len Brown
2011-03-11 21:12 ` [PATCH 4/4] ACPI: Make sure the FADT is at least rev 2 before using the reset register Matthew Garrett
2011-03-23  4:01   ` Len Brown
2011-03-23 10:59     ` Matthew Garrett [this message]
2011-03-11 22:08 ` [PATCH 1/4] X86: Revamp reboot behaviour to match Windows more closely Rafael J. Wysocki
2011-03-11 22:15   ` Matthew Garrett
2011-03-11 22:18     ` Rafael J. Wysocki
2011-03-23  3:49       ` Len Brown
2011-03-23  4:08 ` Len Brown

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