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ac5a6acbb1
This updates the backports package used in mac80211 to version 4.19.7-1 which is based on kernel 4.19.7. This integrates all the stable fixes introduces in this kernel version. The deleted patches are not needed any more because they are either included in the upstream Linux kernel 4.19.7 or in backports 4.19.7-1. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
29 lines
1017 B
Diff
29 lines
1017 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Wed, 28 Nov 2018 22:36:06 +0100
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Subject: [PATCH] mac80211: fix reordering of buffered broadcast packets
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If the buffered broadcast queue contains packets, letting new packets bypass
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that queue can lead to heavy reordering, since the driver is probably throttling
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transmission of buffered multicast packets after beacons.
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Keep buffering packets until the buffer has been cleared (and no client
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is in powersave mode).
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Cc: stable@vger.kernel.org
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/mac80211/tx.c
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+++ b/net/mac80211/tx.c
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@@ -439,8 +439,8 @@ ieee80211_tx_h_multicast_ps_buf(struct i
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if (ieee80211_hw_check(&tx->local->hw, QUEUE_CONTROL))
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info->hw_queue = tx->sdata->vif.cab_queue;
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- /* no stations in PS mode */
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- if (!atomic_read(&ps->num_sta_ps))
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+ /* no stations in PS mode and no buffered packets */
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+ if (!atomic_read(&ps->num_sta_ps) && skb_queue_empty(&ps->bc_buf))
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return TX_CONTINUE;
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info->flags |= IEEE80211_TX_CTL_SEND_AFTER_DTIM;
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