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From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 23 Feb 2018 10:05:08 +0100
Subject: [PATCH] mac80211: support station 4-addr mode fast-rx
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3738,10 +3738,6 @@ void ieee80211_check_fast_rx(struct sta_
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
- /* 4-addr is harder to deal with, later maybe */
- if (sdata->u.mgd.use_4addr)
- goto clear;
-
if (sta->sta.tdls) {
fastrx.da_offs = offsetof(struct ieee80211_hdr, addr1);
fastrx.sa_offs = offsetof(struct ieee80211_hdr, addr2);
@@ -3754,6 +3750,13 @@ void ieee80211_check_fast_rx(struct sta_
cpu_to_le16(IEEE80211_FCTL_FROMDS);
}
+ if (sdata->u.mgd.use_4addr && !sta->sta.tdls) {
+ fastrx.expected_ds_bits |=
+ cpu_to_le16(IEEE80211_FCTL_TODS);
+ fastrx.da_offs = offsetof(struct ieee80211_hdr, addr3);
+ fastrx.sa_offs = offsetof(struct ieee80211_hdr, addr4);
+ }
+
if (!sdata->u.mgd.powersave)
break;
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