linux-kernel - Re: [PATCH] PCI / PCIe: Clear Root PME Status bits during early resume

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Message-Id: <201012191338.24070.rjw@sisk.pl>
Date:	Sun, 19 Dec 2010 13:38:23 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Matthew Wilcox <matthew@....cx>
Cc:	linux-pci@...r.kernel.org, Jesse Barnes <jbarnes@...tuousgeek.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Linux-pm mailing list" <linux-pm@...ts.linux-foundation.org>
Subject: Re: [PATCH] PCI / PCIe: Clear Root PME Status bits during early resume

On Sunday, December 19, 2010, Matthew Wilcox wrote:
> On Sun, Dec 19, 2010 at 11:49:40AM +0100, Rafael J. Wysocki wrote:
> > in pci_pm_default_resume_early() and not in the port's resume
> > routine, because it's generally necessary even if the PCI Express
> > port driver is not used).
> 
> We should make it impossible to not use the PCIe port driver.

Actually, that's not correct.  In some cases (e.g. _OSI doesn't allow us
to use PCIe native services), we simply can't use it (because it is unsafe
and leads to serious problems).

Thanks,
Rafael
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