On Tue, 2018-06-26 at 18:01 +0530, Manikanta Pubbisetty wrote: > > Valid point, txqs_paused is set in ieee80211_tx_dequeue; I was thinking > a case where tx_dequeue is called without rcu_read_lock but seems that > is not the case. All drivers using wake_tx_queue seems are using > rcu_read_lock before tx_dequeue; can there be a case where tx_dequeue is > called without rcu_read_lock? FWIW, the rcu_read_lock() isn't relevant at all - multiple threads can well (and will for sure!) enter it. johannes
