netdev - Re: [E1000-devel] [regression] e1000e broke e1000

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Message-ID: <47FBD9CD.8060008@intel.com>
Date:	Tue, 08 Apr 2008 13:47:09 -0700
From:	"Kok, Auke" <auke-jan.h.kok@...el.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Jeff Garzik <jeff@...zik.org>, Matthew Wilcox <matthew@....cx>,
	e1000-list <e1000-devel@...ts.sourceforge.net>,
	NetDev <netdev@...r.kernel.org>,
	"Allan, Bruce W" <bruce.w.allan@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	"Ronciak, John" <john.ronciak@...el.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Greg KH <greg@...ah.com>,
	linux-pci maillist <linux-pci@...ey.karlin.mff.cuni.cz>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [E1000-devel] [regression] e1000e broke e1000

Ingo Molnar wrote:
> * Jeff Garzik <jeff@...zik.org> wrote:
> 
>> Ingo Molnar wrote:
>>> i repeat, it took me more than an hour to figure out why there's no 
>>> networking on my laptop. Guess how much it takes for a plain user to 
>>> figure out the same problem.
>> A plain user would have obtained a working distro kernel, putting this 
>> rare problem purely in the laps of people with highly unusual kernel 
>> configs...
>>
>> But as noted in the announcement, the fix is for this is to continue 
>> in the next step in the transition, then you only have one driver 
>> claiming those IDs, for any given config.  No need for further Kconfig 
>> tweakage.
> 
> i find it mindboggling and rather sad that you are still in denial :-(
> 
> this is an obvious regression to me, with a very simple fix. No other 
> PCI driver breaks like this. We've got three thousand Kconfig options - 
> it is clearly not realistic for users to keep such details in mind to 
> avoid pitfalls. E1000=y && E1000E=m is uncommon but can easily happen. 
> E1000=y && E1000E=m simply makes no sense in light of the PCI ID 
> stealing that occurs if E1000E is enabled.

hence the patch that is in jeff's upstream tree that puts an end to this :)

Auke


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