From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
Heiner Kallweit <hkallweit1@gmail.com>,
Bjorn Helgaas <helgaas@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>
Subject: Re: Lost PCIe PME after a914ff2d78ce ("PCI/ASPM: Don't select CONFIG_PCIEASPM by default")
Date: Mon, 1 Jun 2020 12:58:49 +0200 [thread overview]
Message-ID: <CAJZ5v0gxntUoxu70jpzsEHbytXwKC=EBsFD3y=0H6E0hLytybw@mail.gmail.com> (raw)
In-Reply-To: <20200530113344.GA2834@infradead.org>
On Sat, May 30, 2020 at 1:34 PM Christoph Hellwig <hch@infradead.org> wrote:
>
> On Sat, May 30, 2020 at 08:14:34AM +0100, Matthew Garrett wrote:
> > On Sat, May 30, 2020 at 08:33:50AM +0200, Heiner Kallweit wrote:
> >
> > > It *was* default y. This changed with a914ff2d78ce ("PCI/ASPM: Don't
> > > select CONFIG_PCIEASPM by default") and that's what triggered the
> > > problem. If there's no easy solution, then maybe it's best to revert
> > > the change for now.
> >
> > Oh, sorry, I was looking at mainline. CONFIG_PCIEASPM should
> > *definitely* be enabled by default - platforms expect the OS to support
> > it. If we want to get rid of default y then I think it'd make more sense
> > to have a CONFIG_DISABLE_PCIEASPM that's under EXPERT, and people who
> > really want to disable the code can do so.
>
> I think the fact that the EXPERT didn't get removed in the above bug
> is a defintive bug. But I'd go further and think the CONFIG_PCIEASPM
> option should be removed entirely. There is absolutely no good reason
> to not build this small amount of code if PCIe support is enabled.
Well stated, thanks!
next prev parent reply other threads:[~2020-06-01 10:59 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 21:44 Lost PCIe PME after a914ff2d78ce ("PCI/ASPM: Don't select CONFIG_PCIEASPM by default") Heiner Kallweit
2020-05-29 18:50 ` Heiner Kallweit
2020-05-29 19:21 ` Bjorn Helgaas
2020-05-29 19:40 ` Heiner Kallweit
2020-05-29 20:09 ` Heiner Kallweit
2020-05-29 20:21 ` Bjorn Helgaas
2020-05-29 20:53 ` Heiner Kallweit
2020-05-29 20:59 ` Matthew Garrett
2020-05-29 22:26 ` Heiner Kallweit
2020-05-29 22:58 ` Matthew Garrett
2020-05-30 6:33 ` Heiner Kallweit
2020-05-30 7:14 ` Matthew Garrett
2020-05-30 11:33 ` Christoph Hellwig
2020-06-01 10:58 ` Rafael J. Wysocki [this message]
2020-06-01 15:13 ` Bjorn Helgaas
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