Re: BCM4313 keeps disconnecting with brcmsmac and multiple APs

[Felix Fietkau <nbd@openwrt.org>]

On 2012-01-27 9:46 AM, Arend van Spriel wrote:
> On 01/24/2012 11:31 AM, Milan Bouchet-Valat wrote:
>> [  297.365453] wlan0: Wrong control channel in association response: configured center-freq: 2437 hti-cfreq: 2462  hti->control_chan: 11 band: 0.  Disabling HT.
> 
> Hi Felix,
> 
> My guess is that this message is coming from minstrel_ht. Could you
> explain what it means?
It's not minstrel_ht, it's this piece of code from net/mac80211/mlme.c:

    if (enable_ht) {
        hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan,
                               sband->band);
        /* check that channel matches the right operating channel */
        if (local->hw.conf.channel->center_freq != hti_cfreq) {
            /* Some APs mess this up, evidently.
             * Netgear WNDR3700 sometimes reports 4 higher than
             * the actual channel, for instance.
             */
            printk(KERN_DEBUG
                   "%s: Wrong control channel in association"
                   " response: configured center-freq: %d"
                   " hti-cfreq: %d  hti->control_chan: %d"
                   " band: %d.  Disabling HT.\n",
                   sdata->name,
                   local->hw.conf.channel->center_freq,
                   hti_cfreq, hti->control_chan,
                   sband->band);
            enable_ht = false;
        }
    }


- Felix