Sorry I dropped out of the thread - busy with other stuff. I'll reply to other mails later. > I am working on the hwsim support right now, tpc support in hwsim’s > control path is implemented. > However I encountered a problem in the status path. Hwsim seems to > hand over to mac80211 > tx-status asynchronously via ieee80211_tx_status_irqsafe only. There, > the skb is added to > ieee80211_local->skb_queue and then dequeued in > ‘ieee80211_tasklet_handler’ to be passed > to ‘ieee80211_tx_status’. For tx rates this is sufficient, but there > is no space left in > ieee80211_tx_info->status to pass the tx-power per packet. > Please correct me if I missed something in the code. > > My idea to solve this may be: to use the SKB extension (struct skb_ext > *extensions) to pass the > tx-power information (and maybe more) for each SKB. Could this be an > appropriate approach or > do I miss something here? Maybe someone who is much more aware of the > mac80211 layer > design does have a better idea for this? Is it even an issue to switch to ieee80211_tx_status_ext()? The context here looks OK, although it might lead to (too?) deep call stacks. I don't like the _irqsafe() versions anyway ... johannes
