Message-ID: <1347892887.7112.9.camel@sauron.fi.intel.com> (sfid-20120917_163617_677167_0B529F43)
Subject: Re: regression: tethering fails in 3.5 with iwlwifi
From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Reply-To: artem.bityutskiy@linux.intel.com
To: "Berg, Johannes" <johannes.berg@intel.com>,
	Eric Dumazet <edumazet@google.com>
Cc: linux-wireless@vger.kernel.org
Date: Mon, 17 Sep 2012 17:41:27 +0300
In-Reply-To: <1347640763.5263.24.camel@sauron.fi.intel.com>
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On Fri, 2012-09-14 at 19:39 +0300, Artem Bityutskiy wrote:
> On Fri, 2012-09-14 at 17:02 +0300, Artem Bityutskiy wrote:
> > Hi Johannes,
> >=20
> > We are using iwlwifi driver in Tizen IVI. We were using kernel v3.4 and
> > wifi tethering worked fine. But after upgrading to v3.5 it stopped
> > working.
> >=20
> > I am trying to bisect this already many hours - very difficult, because
> > tethering did not work in kernels around v3.4-rcX for some different
> > reasons, so just 'git bisect' does not work.
>=20
> OK, my latest finding is:
>        =20
>         bad:               3edaf3e Johannes Berg  mac80211: manage AP net=
dev carrier state
>         good:              fe40cb6 Ashok Nagarajan  mac80211: Check basic=
 rates when peering
>        =20
> However, just reverting in 3.5 does not solve the issue. I am out of
> ideas how to proceed.

OK, finally I got it. After 3 days of hardcore intelligent bisecting
        I've found out that tethering in 3.5 works for me if I revert
these 2
        patches:
       =20
            56138f5 iwlwifi: dont pull too much payload in skb head
            3edaf3e mac80211: manage AP netdev carrier state
       =20
        Johannes, Eric?

--=20
Best Regards,
Artem Bityutskiy

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