From 37fbd9080088f5f98ab81a6f2ad456857971a089 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 29 Sep 2011 16:04:39 +0200 Subject: mac80211: allow out-of-band EOSP notification iwlwifi has a separate EOSP notification from the device, and to make use of that properly it needs to be passed to mac80211. To be able to mix with tx_status_irqsafe and rx_irqsafe it also needs to be an "_irqsafe" version in the sense that it goes through the tasklet, the actual flag clearing would be IRQ-safe but doing it directly would cause reordering issues. This is needed in the case of a P2P GO going into an absence period without transmitting any frames that should be driver-released as in this case there's no other way to inform mac80211 that the service period ended. Note that for drivers that don't use the _irqsafe functions another version of this function will be required. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/main.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'net/mac80211/main.c') diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 336ceb9d2462..17b038aeac9b 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -325,6 +325,8 @@ u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) static void ieee80211_tasklet_handler(unsigned long data) { struct ieee80211_local *local = (struct ieee80211_local *) data; + struct sta_info *sta, *tmp; + struct skb_eosp_msg_data *eosp_data; struct sk_buff *skb; while ((skb = skb_dequeue(&local->skb_queue)) || @@ -340,6 +342,18 @@ static void ieee80211_tasklet_handler(unsigned long data) skb->pkt_type = 0; ieee80211_tx_status(local_to_hw(local), skb); break; + case IEEE80211_EOSP_MSG: + eosp_data = (void *)skb->cb; + for_each_sta_info(local, eosp_data->sta, sta, tmp) { + /* skip wrong virtual interface */ + if (memcmp(eosp_data->iface, + sta->sdata->vif.addr, ETH_ALEN)) + continue; + clear_sta_flag(sta, WLAN_STA_SP); + break; + } + dev_kfree_skb(skb); + break; default: WARN(1, "mac80211: Packet is of unknown type %d\n", skb->pkt_type); -- cgit v1.2.2