From 9251a4736ee360d3850644ddaaa1a61dcec96238 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 23 Feb 2018 13:55:50 +0100
Subject: [PATCH] mac80211: support station 4-addr mode fast-rx
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/mac80211/rx.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 1d417960d376..2783c5cd7de7 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3747,10 +3747,6 @@ void ieee80211_check_fast_rx(struct sta_info *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);
@@ -3763,6 +3759,13 @@ void ieee80211_check_fast_rx(struct sta_info *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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