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From: Logan Gunthorpe <logang@deltatee.com>
To: Matthew Wilcox <willy@infradead.org>, Martin Mares <mj@ucw.cz>
Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-doc@vger.kernel.org, "Stephen Bates" <sbates@raithlin.com>,
	"Christoph Hellwig" <hch@lst.de>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Ingo Molnar" <mingo@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	"Marc Zyngier" <marc.zyngier@arm.com>,
	"Kai-Heng Feng" <kai.heng.feng@canonical.com>,
	"Frederic Weisbecker" <frederic@kernel.org>,
	"Dan Williams" <dan.j.williams@intel.com>,
	"Jérôme Glisse" <jglisse@redhat.com>,
	"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
	"Alex Williamson" <alex.williamson@redhat.com>,
	"Christian König" <christian.koenig@amd.com>
Subject: Re: lspci: Display path to device
Date: Mon, 13 Aug 2018 09:55:17 -0600
Message-ID: <98953063-2fa8-fe2b-afc5-801d0a341051@deltatee.com> (raw)
In-Reply-To: <20180812103133.GB2984@bombadil.infradead.org>



On 12/08/18 04:31 AM, Matthew Wilcox wrote:
> I pondered asking Logan to change his parser to include the bus number
> as a solution, but then I remembered the entire point of this is to make
> specifying a device robust against bus number assignmnet changes.  I suppose
> we could have the parser accept and ignore the bus number ...

Yes, exactly. Bjorn's already accepted the series but we could add
support for ignored bus letters in another patch if we want. I just
think that might be confusing when you end up in a situation where the
path includes numbers that no longer actually match the actual addresses
after the bus numbers change.

Thanks,

Logan

      parent reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-17 17:02 [PATCH v7 0/4] Add parameter for disabling ACS redirection for P2P Logan Gunthorpe
2018-07-17 17:02 ` [PATCH v7 1/4] PCI: Make specifying PCI devices in kernel parameters reusable Logan Gunthorpe
2018-07-17 17:02 ` [PATCH v7 2/4] PCI: Allow specifying devices using a base bus and path of devfns Logan Gunthorpe
2018-07-17 17:02 ` [PATCH v7 3/4] PCI: Introduce disable_acs_redir quirk Logan Gunthorpe
2018-07-17 17:48   ` Alex Williamson
2018-07-17 17:02 ` [PATCH v7 4/4] PCI: Introduce the disable_acs_redir parameter Logan Gunthorpe
2018-07-17 17:48   ` Alex Williamson
2018-07-17 17:49     ` Logan Gunthorpe
2018-07-17 17:57       ` Stephen  Bates
2018-07-17 20:39 ` lspci: Display path to device Matthew Wilcox
2018-07-17 20:51   ` Logan Gunthorpe
2018-07-17 21:00   ` Bjorn Helgaas
2018-07-17 21:46     ` Matthew Wilcox
2018-08-09 23:48   ` Matthew Wilcox
2018-08-10  9:35   ` Martin Mares
2018-08-10 10:30     ` Martin Mares
2018-08-10 14:56       ` Matthew Wilcox
2018-08-12  9:28         ` Martin Mares
2018-08-12 10:31           ` Matthew Wilcox
2018-08-12 10:51             ` Martin Mares
2018-08-13 15:55             ` Logan Gunthorpe [this message]

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