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From: Marcel Holtmann <marcel@holtmann.org>
To: linux-hotplug@vger.kernel.org
Subject: Re: link up and down
Date: Tue, 11 Aug 2009 22:17:47 +0000	[thread overview]
Message-ID: <1250029067.30166.34.camel@localhost.localdomain> (raw)
In-Reply-To: <cfeab66d0908110935v38566a5awc48edbffd62053f@mail.gmail.com>

Hi Greg,

> > the linux kernel is running on an embedded box ... so if i can achieve
> > this using hotplug2 , i can save a lot of flash by not intstalling
> > ethtool ..
> > is there any way
> 
> You are really using hotplug2 for a device?  Are you insane?  That's
> very old, unsupported, and buggy code that was a totally bad idea when I
> wrote it.
> 
> Please do not use it, it will break and cause bad things to happen.
> 
> And no, there are no hotplug events for link up/down, use ethtool like
> it is designed for.

actually there was a patch for KOBJ_CHANGE events when network interface
flags change, but it never got merged upstream.

Also just using RTNL and listening for IFF_LOWER_UP is way simpler than
going through uevents.

Regards

Marcel



  parent reply	other threads:[~2009-08-11 22:17 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-11 16:47 link up and down ratheesh k
2009-08-11 16:52 ` Greg KH
2009-08-11 17:27 ` Marco d'Itri
2009-08-11 17:33 ` ratheesh k
2009-08-11 17:45 ` Greg KH
2009-08-11 22:17 ` Marcel Holtmann [this message]
2009-08-12 18:20 ` Stephen Hemminger
2009-08-14  5:39 ` ratheesh k

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