linux-kernel - Re: [PATCH 1/4] PCI: Check PCI_PM_CTRL in pci_dev

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Date: Wed, 19 Jun 2024 20:33:11 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: Mario Limonciello <mario.limonciello@....com>, linux-pci@...r.kernel.org,
 linux-usb@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Mathias Nyman <mathias.nyman@...el.com>
Cc: LKML <linux-kernel@...r.kernel.org>, Daniel Drake <drake@...lessos.org>,
 Gary Li <Gary.Li@....com>, Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: Re: [PATCH 1/4] PCI: Check PCI_PM_CTRL in pci_dev_wait()

> A device that has gone through a reset may return a value in PCI_COMMAND
> but that doesn't mean it's finished transitioning to D0.  On devices that
> support power management explicitly check PCI_PM_CTRL to ensure the
> transition happened.  Devicees that don't support power management will

                        Devices?


> continue to use PCI_COMMAND.

Would the tag “Fixes” be relevant for such a change description?

Regards,
Markus