linux-kernel - Re: [PATCH 1/2] [RFC] PCI: read revision ID by default

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Message-ID: <466B0005.30006@intel.com>
Date:	Sat, 09 Jun 2007 12:31:17 -0700
From:	"Kok, Auke" <auke-jan.h.kok@...el.com>
To:	David Miller <davem@...emloft.net>
CC:	grundler@...isc-linux.org, linux-kernel@...r.kernel.org,
	linux-pci@...ey.karlin.mff.cuni.cz, gregkh@...e.de
Subject: Re: [PATCH 1/2] [RFC] PCI: read revision ID by default

David Miller wrote:
> From: Grant Grundler <grundler@...isc-linux.org>
> Date: Sat, 9 Jun 2007 00:59:53 -0600
> 
>> On Fri, Jun 08, 2007 at 03:46:30PM -0700, Auke Kok wrote:
>>> Currently there are 97 occurrences where drivers need the pci
>>> revision ID. We can do this once for all devices. Even the pci
>>> subsystem needs the revision several times for quirks. The extra
>>> u8 member pads out nicely in the pci_dev struct.
>> Good idea. I always wondered why we read the invariants so often
>> in the code.
> 
> BTW, if you add code like this, you also have to add the
> appropriate code to do this for all the platforms that probe
> the PCI bus using a firmware device tree like sparc64
> and powerpc do.

yes absolutely, I'll try to see if I can come up with that. Also, I'll add 
reading the class part at the same time since that just makes sense.

Auke
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