[PATCH v2] nvme: Look for StorageD3Enable on companion ACPI device instead

[Limonciello, Mario]

On 5/27/2021 09:35, Christoph Hellwig wrote:
> Adding Raul who has been asking for something like this as well.
> 

I thought I already included him on CC.  Sorry if I munged the email or 
something.

> I'd also really like to move nvme_acpi_storage_d3 out of the NVMe
> driver.  The Microsoft document that the original document references
> makes it very clear that this is not NVMe specific, but also covers
> at least AHCI.  On top of that the platform simply can't know what kind
> of PCIe device is in any given slot.  Last but not least this will also
> allow us to add quirks for devices that fail to properly mark this
> misfeature in the ACPI tables.
> 

+Bjorn

Back when this feature was first submitted, that was actually the 
initial way that it was done, but Bjorn had preferred to see it move
into the NVME driver directly:

https://lore.kernel.org/linux-nvme/20200625173053.GA2694537@bjorn-Precision-5520/

Bjorn, are you OK with this coming "back" to PCI based on Christoph's
comments?