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mac80211: add a powersave handling fix

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Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2016-08-28 13:49:48 +02:00
parent 4f40f22fb3
commit 1e72d1bf16
1 changed files with 31 additions and 0 deletions
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package/kernel/mac80211/patches/338-mac80211-fix-tim-recalculation-after-PS-response.patch Normal file
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@ -0,0 +1,31 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 26 Aug 2016 21:57:16 +0200
Subject: [PATCH] mac80211: fix tim recalculation after PS response
Handle the case where the mac80211 intermediate queues are empty and the
driver has buffered frames
Fixes: ba8c3d6f16a1 ("mac80211: add an intermediate software queue implementation")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1616,7 +1616,6 @@ ieee80211_sta_ps_deliver_response(struct
sta_info_recalc_tim(sta);
} else {
- unsigned long tids = sta->txq_buffered_tids & driver_release_tids;
int tid;
/*
@@ -1648,7 +1647,8 @@ ieee80211_sta_ps_deliver_response(struct
for (tid = 0; tid < ARRAY_SIZE(sta->sta.txq); tid++) {
struct txq_info *txqi = to_txq_info(sta->sta.txq[tid]);
- if (!(tids & BIT(tid)) || txqi->tin.backlog_packets)
+ if (!(driver_release_tids & BIT(tid)) ||
+ txqi->tin.backlog_packets)
continue;
sta_info_recalc_tim(sta);