[PATCH 28/28] mac80211: Don't wake up from PS for offchannel TX
From: Luca Coelho <hidden>
Date: 2018-08-31 12:52:13
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
) From: Andrei Otcheretianski <redacted> Otherwise the offchannel frame might be queued due to IEEE80211_QUEUE_STOP_REASON_PS and later dropped (in ieee80211_tx_frags()). Anyway, it doesn't make much sense to wake up the device during ROC. Signed-off-by: Andrei Otcheretianski <redacted> Signed-off-by: Luca Coelho <redacted> --- net/mac80211/tx.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 4efed4ac16eb..4d224a0b7746 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c@@ -214,6 +214,7 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) { struct ieee80211_local *local = tx->local; struct ieee80211_if_managed *ifmgd; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); /* driver doesn't support power save */ if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
@@ -242,6 +243,9 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) if (tx->sdata->vif.type != NL80211_IFTYPE_STATION) return TX_CONTINUE; + if (unlikely(info->flags & IEEE80211_TX_INTFL_OFFCHAN_TX_OK)) + return TX_CONTINUE; + ifmgd = &tx->sdata->u.mgd; /*
--
2.18.0