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Re: [PATCH v2 1/2] mac80211: check requested flags in ieee80211_tx_prepare_skb()

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On 6 January 2016 at 11:44, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote:
> On Tue, 2016-01-05 at 11:35 +0100, Janusz Dziedzic wrote:
>> In case driver already set info->flags (eg.
>> IEEE80211_TX_CTL_NO_CCK_RATE
>> in ath9k driver), before this patch we skip this requested flags.
>
> I don't see how we "skip" them?
>
>> +     unsigned int flags = info->flags;
>>
>>       if (ieee80211_tx_prepare(sdata, &tx, NULL, skb) == TX_DROP)
>>               return false;
>>
>>       info->band = band;
>>       info->control.vif = vif;
>>       info->hw_queue = vif->hw_queue[skb_get_queue_mapping(skb)];
>> +     info->flags |= flags;
>
> tx_prepare() doesn't [seem to] do anything to the flags but twiddle a
> few, so ?
>
Yes, you right - this patch is not needed.
Thanks.

BR
Janusz
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