diff options
| author |   Felix Fietkau <nbd@nbd.name> | 2018-11-28 22:39:16 +0100 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2018-12-05 12:29:35 +0100 |
| commit | 9ec1190d065998650fd9260dea8cf3e1f56c0e8c (patch) | |
| tree | e736f17bc5b82ac7246938bd76c08bcc1bc2b314 /net/mac80211 | |
| parent | mac80211: ignore tx status for PS stations in ieee80211_tx_status_ext (diff) | |
| download | linux-dev-9ec1190d065998650fd9260dea8cf3e1f56c0e8c.tar.xz linux-dev-9ec1190d065998650fd9260dea8cf3e1f56c0e8c.zip | |
mac80211: fix reordering of buffered broadcast packets
If the buffered broadcast queue contains packets, letting new packets bypass
that queue can lead to heavy reordering, since the driver is probably throttling
transmission of buffered multicast packets after beacons.
Keep buffering packets until the buffer has been cleared (and no client
is in powersave mode).
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/tx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index e0ccee23fbcd..1f536ba573b4 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -439,8 +439,8 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) if (ieee80211_hw_check(&tx->local->hw, QUEUE_CONTROL)) info->hw_queue = tx->sdata->vif.cab_queue; - /* no stations in PS mode */ - if (!atomic_read(&ps->num_sta_ps)) + /* no stations in PS mode and no buffered packets */ + if (!atomic_read(&ps->num_sta_ps) && skb_queue_empty(&ps->bc_buf)) return TX_CONTINUE; info->flags |= IEEE80211_TX_CTL_SEND_AFTER_DTIM; |