[ath5k-devel] [PATCH v4] mac80211: Remove control.sta from struct ieee80211_tx_info and restructure tx-path

[Thomas Huehn <thomas@net.t-labs.tu-berlin.de>]

Hi Johannes,

Johannes Berg schrieb:

> On Mon, 2012-07-23 at 21:33 +0200, Thomas Huehn wrote:
> 
>> --- a/net/mac80211/ieee80211_i.h
>> +++ b/net/mac80211/ieee80211_i.h
>> @@ -196,6 +196,8 @@ struct ieee80211_tx_data {
>>  	struct ieee80211_channel *channel;
>>  
>>  	unsigned int flags;
>> +
>> +	struct ieee80211_tx_control control;
> 
> Why is this needed/useful?


I used it just in tx.c to pass the control pointer as function
parameter, but as I like your suggestion below it is gone in v5.

> 
>>  		info->control.vif = vif;
>> -		info->control.sta = sta;
>> +		control->sta = sta;
>>  
>>  		__skb_unlink(skb, skbs);
>> -		drv_tx(local, skb);
>> +		drv_tx(local, control, skb);
> 
> You're assigning to it right before, and I don't see you using it any
> time before, so why not just have the control struct on the stack of
> this function?


Good idea, v5 is coming.

Greetings Thomas