linux-kernel - Re: [PATCH 2/2] x86/reboot/quirks: Add ASRock Z170 Extreme4

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Date:   Wed, 15 Jul 2020 19:12:44 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Simon Arlott <simon@...iron.net>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, Bart Van Assche <bvanassche@....org>,
        Christoph Hellwig <hch@...radead.org>,
        Damien Le Moal <Damien.LeMoal@....com>,
        Pavel Machek <pavel@....cz>,
        Henrique de Moraes Holschuh <hmh@....eng.br>
Subject: Re: [PATCH 2/2] x86/reboot/quirks: Add ASRock Z170 Extreme4

On Mon, Jun 29, 2020 at 09:58:05PM +0100, Simon Arlott wrote:
> If a PCI mode reboot is performed on the ASRock Z170 Extreme4, a power
> cycle will occur. Automatically set the reboot quirk for this to prepare
> for the power off (i.e. stop all disks).
> 
> This will only take effect if PCI mode is manually used. It'll be too late
> in the reboot process to prepare for power off if the other reboot methods
> fail.
> 
> It is necessary to re-order the processing of DMI checks because this quirk
> must apply even if a reboot= command line parameter is used as that's the
> only way to specify a PCI mode reboot.
> 
> Signed-off-by: Simon Arlott <simon@...iron.net>

Looks good,

Reviewed-by: Christoph Hellwig <hch@....de>