netdev - Re: [patch 097/101] revert "drivers/net/tulip/dmfe: support basic carrier detection"

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Date:	Wed, 07 Mar 2007 21:41:51 -0500
From:	Dan Williams <dcbw@...hat.com>
To:	Stephen Hemminger <shemminger@...ux-foundation.org>
Cc:	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	stable@...nel.org, jeff@...zik.org,
	Justin Forbes <jmforbes@...uxtx.org>,
	Zwane Mwaikambo <zwane@....linux.org.uk>,
	"Theodore Ts'o" <tytso@....edu>,
	Randy Dunlap <rdunlap@...otime.net>,
	Dave Jones <davej@...hat.com>,
	Chuck Wolber <chuckw@...ntumlinux.com>,
	Chris Wedgwood <reviews@...cw.f00f.org>,
	Michael Krufky <mkrufky@...uxtv.org>,
	Chuck Ebbert <cebbert@...hat.com>,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, netdev@...r.kernel.org,
	thomas@...hlinux.org, val_henson@...ux.intel.com,
	samuel.thibault@...-lyon.org
Subject: Re: [patch 097/101] revert "drivers/net/tulip/dmfe: support basic
	carrier detection"

On Wed, 2007-03-07 at 10:14 -0800, Stephen Hemminger wrote:
> On Wed, 07 Mar 2007 09:12:12 -0800
> Greg KH <gregkh@...e.de> wrote:
> 
> > 
> > From: Andrew Morton <akpm@...ux-foundation.org>
> > 
> > Revert 7628b0a8c01a02966d2228bdf741ddedb128e8f8.  Thomas Bachler
> > reports:
> > 
> >   Commit 7628b0a8c01a02966d2228bdf741ddedb128e8f8 (drivers/net/tulip/dmfe:
> >   support basic carrier detection) breaks networking on my Davicom DM9009. 
> >   ethtool always reports there is no link.  tcpdump shows incoming packets,
> >   but TX is disabled.  Reverting the above patch fixes the problem.
> > 
> 
> Carrier detection support is important and should be fixed rather than removed.

Definitely right.  If it doesn't work for your card, it needs to be
fixed for your card.

Dan


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