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Date: Wed, 17 Apr 2013 17:23:39 +0200
From: Karl Beldan <karl.beldan@gmail.com>
To: Felix Fietkau <nbd@openwrt.org>
Cc: linux-wireless@vger.kernel.org, johannes@sipsolutions.net
Subject: Re: [PATCH v2 3/5] mac80211: improve the rate control API
Message-ID: <20130417152339.GA4319@magnum.frso.rivierawaves.com> (sfid-20130417_172755_667922_66FA11D4)
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On Tue, Apr 16, 2013 at 01:38:44PM +0200, Felix Fietkau wrote:
> @@ -692,16 +692,38 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
>  	 */
>  	rate_control_get_rate(tx->sdata, tx->sta, &txrc);
>  
> -	if (unlikely(info->control.rates[0].idx < 0))
> -		return TX_DROP;
> +	if (tx->sta)
> +		ratetbl = rcu_dereference(tx->sta->sta.rates);
> +
> +	if (unlikely(info->control.rates[0].idx < 0)) {
> +		if (ratetbl) {
> +			struct ieee80211_tx_rate rate = {
> +				.idx = ratetbl->rate[0].idx,
> +				.flags = ratetbl->rate[0].flags,
> +				.count = ratetbl->rate[0].count
> +			};
> +
> +			if (ratetbl->rate[0].idx < 0)
> +				return TX_DROP;
> +
> +			tx->rate = rate;
tx->rate = ratetbl->rate[0];

 
Karl