linux-kernel - Re: [PATCH 1/1] ath5k: fix hw rate index condition

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Message-ID: <49A9C3D7.8060706@gmail.com>
Date:	Sun, 01 Mar 2009 00:08:07 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Bob Copeland <me@...copeland.com>
CC:	Dhaval Giani <dhaval.lists@...gianis.in>,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	linville@...driver.com, davem@...emloft.net,
	linux-wireless@...r.kernel.org, ath5k-devel@...ema.h4ckr.net,
	Nick Kossifidis <mickflemm@...il.com>,
	"Luis R. Rodriguez" <lrodriguez@...eros.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] ath5k: fix hw rate index condition

On 15.2.2009 14:47, Bob Copeland wrote:
> On Mon, Feb 02, 2009 at 01:27:39PM +0530, Dhaval Giani wrote:
>> So I finally managed to hit this on 2.6.29-rc3. It is hard to
>> reproduce, so I hope so much information is enough to give you a good
>> guess. This time it hit while trying to connect to an open network at
>> the airport.
>
>> WARNING: at net/mac80211/rx.c:2236 __ieee80211_rx+0x96/0x571 [mac80211]()
>> Hardware name: 2007CS3
>> RATE=255, BAND=8
>
> band is supposed to be sc->curband?  8 is way wrong.

If you look into the patch which outputs this (backtrace in this 
thread), sband->n_bitrates is 8. I have no idea what I have been smoking 
the day I wrote it, but BAND= for sure isn't the right name for that 
thing. Sorry for the confusion.

> rate could be 255
> if, for some reason, the hardware rate wasn't in the rate table.

So, we have a fix for this, right? I mean the u8->s8 sc->rate_idx 
conversion or alike...
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