linux-kernel - Re: [PATCH 0/2] Add support for StorageD3Enable

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Message-ID: <b0ca81f973ba55a2d6a8c84bc00f2324bad64f30.camel@infradead.org>
Date:   Mon, 18 May 2020 14:51:06 +0100
From:   David Woodhouse <dwmw2@...radead.org>
To:     "Williams, Dan J" <dan.j.williams@...el.com>,
        "hch@....de" <hch@....de>,
        "david.e.box@...ux.intel.com" <david.e.box@...ux.intel.com>
Cc:     "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "sagi@...mberg.me" <sagi@...mberg.me>,
        "lenb@...nel.org" <lenb@...nel.org>,
        "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "axboe@...com" <axboe@...com>,
        "kbusch@...nel.org" <kbusch@...nel.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>
Subject: Re: [PATCH 0/2] Add support for StorageD3Enable _DSD property

On Wed, 2020-04-29 at 05:20 +0000, Williams, Dan J wrote:
> The *patch* is not trying to overrule NVME, and the best I can say is
> that the Intel Linux team was not in the loop when this was being
> decided between the platform BIOS implemenation and  whomever  thought
> they could just publish random ACPI properties that impacted NVME
> operation [1].
> 
> So now David is trying to get these platform unbroken because they are
> already shipping with this b0rkage.

This is what we have WARN_TAINT() for though, right? It can suitably
warn users when such breakage is detected in the platform.



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