From: Sinan Kaya <okaya@codeaurora.org>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>,
Gabriele Paoloni <gabriele.paoloni@huawei.com>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
linux-pci@vger.kernel.org, Keith Busch <keith.busch@intel.com>,
Kai-Heng Feng <kai.heng.feng@canonical.com>,
Ingo Molnar <mingo@kernel.org>,
Christoffer Dall <cdall@linaro.org>,
Jonathan Corbet <corbet@lwn.net>,
timur@codeaurora.org,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Dongdong Liu <liudongdong3@huawei.com>,
David Rientjes <rientjes@google.com>,
Thymo van Beers <thymovanbeers@gmail.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Frederick Lawler <fred@fredlawl.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Marc Zyngier <marc.zyngier@arm.com>,
linux-arm-msm@vger.kernel.org,
Frederic Weisbecker <frederic@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
Oza Pawandeep <poza@codeaurora.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] PCI: Add pci=safemode option
Date: Wed, 30 May 2018 11:28:42 -0400 [thread overview]
Message-ID: <2a5281cd-a0c7-1449-5b72-133660667fa6@codeaurora.org> (raw)
In-Reply-To: <20180530145650.GA39853@bhelgaas-glaptop.roam.corp.google.com>
On 5/30/2018 10:56 AM, Bjorn Helgaas wrote:
> This *was* my idea, but I'm starting to think it was a bad idea.
>
> I don't want people to use pci= parameters as the normal way to get a
> system to boot. That would be a huge support hassle (putting things
> in release notes, diagnosing problems when people forget it, etc).
>
> But the parameters *are* useful for debugging. If we had a
> "pci=safemode" and it avoided some problem, the next step would be to
> narrow it down by using the more specific flags (pci=nomsi, pci=noari,
> pci=no_ext_tags, etc). So I think 95% of the value is in the specific
> flags, and a "pci=safemode" might add a little bit of value but at the
> cost of a small but nagging maintenance concern and code clutter.
OK. Let's try noXYZ feature. Can you enumerate the XYZ features that you
want to see?
--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
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next prev parent reply other threads:[~2018-05-30 15:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-30 3:19 [PATCH] PCI: Add pci=safemode option Sinan Kaya
2018-05-30 4:31 ` Greg Kroah-Hartman
2018-05-30 4:41 ` Sinan Kaya
2018-05-30 4:55 ` Greg Kroah-Hartman
2018-05-30 7:37 ` Christoph Hellwig
2018-05-30 7:44 ` okaya
2018-05-30 7:48 ` Greg Kroah-Hartman
2018-05-30 7:56 ` okaya
2018-05-30 8:22 ` okaya
2018-05-30 14:56 ` Bjorn Helgaas
2018-05-30 15:28 ` Sinan Kaya [this message]
2018-06-02 17:43 ` Pavel Machek
2018-06-02 17:57 ` okaya
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