netdev - Re: [regression] e1000e broke e1000

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Message-ID: <20080408203314.GA28952@elte.hu>
Date:	Tue, 8 Apr 2008 22:33:14 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Matthew Wilcox <matthew@....cx>,
	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	NetDev <netdev@...r.kernel.org>,
	e1000-list <e1000-devel@...ts.sourceforge.net>,
	linux-pci maillist <linux-pci@...ey.karlin.mff.cuni.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	"Ronciak, John" <john.ronciak@...el.com>,
	"Allan, Bruce W" <bruce.w.allan@...el.com>,
	Greg KH <greg@...ah.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [regression] e1000e broke e1000


* 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.

	Ingo
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