linux-kernel - wireless abi breakage (was Re: 2.6.18-git9 wireless fixes break ipw2200 association to AP with WPA)

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Date:	Sat, 30 Sep 2006 19:38:53 +0000
From:	Pavel Machek <pavel@....cz>
To:	Jean Tourrilhes <jt@....hp.com>
Cc:	Alessandro Suardi <alessandro.suardi@...il.com>,
	"John W. Linville" <linville@...driver.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: wireless abi breakage (was Re: 2.6.18-git9 wireless fixes break ipw2200 association to AP with WPA)

Hi!

> > >> wpa_supplicant log of failing session available upon request.
> > >
> > >It looks like you reverted the WE-21 stuff.  Is your wireless-tools
> > >package up to date?
> > 
> > Well, that's the latest I get under FC5:
> > 
> > [asuardi@...dman ~]$ rpm -q wireless-tools
> > wireless-tools-28-0.pre13.5.1
> 
> 	That's too old, the cutoff is 27-pre15.
> 
> > but indeed (-git11 minus the reverts) iwconfig says
> > 
> > [asuardi@...dman ~]$ iwconfig eth1
> > Warning: Driver for device eth1 has been compiled with version 21
> > of Wireless Extension, while this program supports up to version 19.
> > Some things may be broken...
> 
> 	That's exactly the point of this warning (some distro like to
> kill it), I think it spells pretty clearly what's wrong. Don't say I
> did not warn you...

Well... we are trying to have stable abi here. Breaking older wireless
tools randomly is *not* okay in the middle of stable series.

> > If you have suggestions about either upgrading wireless-tools
> > from a non-FC5 repository or narrowing down the reverts, I'm
> > up for giving them a go :)
> 
> 	If you run a custom kernel, I think you won't see any problems
> running a custom version of Wireless Tools. They are available on my
> web site, pretty easy to install, and have minimal

No. Kernel abi is stable in 2.6.x.
-- 
Thanks for all the (sleeping) penguins.
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