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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 <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
hifive-unleashed-5.1
Felix Fietkau 2015-09-24 14:59:49 +02:00 committed by Johannes Berg
parent babc305e21
commit f7418bc10d
2 changed files with 6 additions and 2 deletions
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1
net/mac80211/status.c
View File

@ -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:

7
net/mac80211/tx.c
View File

@ -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)