From: Felix Fietkau Date: Thu, 24 Sep 2015 12:59:49 +0000 (+0200) Subject: mac80211: fix handling of PS filtering with fast-xmit X-Git-Tag: Ubuntu-snapdragon-4.4.0-1050.54~7308^2~14^2~1 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=f7418bc10d8402798ee3add5ef0ed5f33266a2bb;p=mirror_ubuntu-artful-kernel.git mac80211: fix handling of PS filtering with fast-xmit Fixes dropped packets in the tx path in case a non-PS station triggers the tx filter. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 8ba583243509..3ed7ddfbf8e8 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -101,6 +101,7 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local, * when it wakes up for the next time. */ set_sta_flag(sta, WLAN_STA_CLEAR_PS_FILT); + ieee80211_clear_fast_xmit(sta); /* * This code races in the following way: diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 84e0e8c7fb23..7892eb8ed4c8 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1218,8 +1218,10 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, if (!tx->sta) info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; - else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT)) + else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT)) { info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; + ieee80211_check_fast_xmit(tx->sta); + } info->flags |= IEEE80211_TX_CTL_FIRST_FRAGMENT; @@ -2451,7 +2453,8 @@ void ieee80211_check_fast_xmit(struct sta_info *sta) if (test_sta_flag(sta, WLAN_STA_PS_STA) || test_sta_flag(sta, WLAN_STA_PS_DRIVER) || - test_sta_flag(sta, WLAN_STA_PS_DELIVER)) + test_sta_flag(sta, WLAN_STA_PS_DELIVER) || + test_sta_flag(sta, WLAN_STA_CLEAR_PS_FILT)) goto out; if (sdata->noack_map)