diff mbox

[v2] mac80211: support station 4-addr mode fast-rx

Message ID 20180223125550.67913-1-nbd@nbd.name (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show

Commit Message

Felix Fietkau Feb. 23, 2018, 12:55 p.m. UTC 
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 net/mac80211/rx.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)
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Patch

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6e2506a84586..6944705c5258 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;