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[wireless-next,v3,2/2] wifi: mac80211: VLAN traffic in multicast path

Message ID 20250310223528.3528897-3-muna.sinada@oss.qualcomm.com
State New
Headers show
Series wifi: mac80211: MLO handling for Dynamic VLAN | expand

Commit Message

Muna Sinada March 10, 2025, 10:35 p.m. UTC 
Currently for MLO, sending out multicast frames on each link is handled by
mac80211 only when IEEE80211_HW_MLO_MCAST_MULTI_LINK_TX flag is not set.

Dynamic VLAN multicast traffic utilizes software encryption.
Due to this, mac80211 should handle transmitting multicast frames on
all links for multicast VLAN traffic.

Signed-off-by: Muna Sinada <muna.sinada@oss.qualcomm.com>
---
v3: rebase to cleanly apply to wireless-next

v2:
 - move clearing links for AP_VLAN into seperate function:
   ieee80211_apvlan_link_clear()
 - remove use of goto
 - replaced "master" terminalogy with "AP bss"
 - update Author signoff to new email

---
 net/mac80211/tx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 20179db88c4a..b6d6d0658e14 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4526,8 +4526,10 @@  netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 						     IEEE80211_TX_CTRL_MLO_LINK_UNSPEC,
 						     NULL);
 	} else if (ieee80211_vif_is_mld(&sdata->vif) &&
-		   sdata->vif.type == NL80211_IFTYPE_AP &&
-		   !ieee80211_hw_check(&sdata->local->hw, MLO_MCAST_MULTI_LINK_TX)) {
+		   ((sdata->vif.type == NL80211_IFTYPE_AP &&
+		     !ieee80211_hw_check(&sdata->local->hw, MLO_MCAST_MULTI_LINK_TX)) ||
+		    ((sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
+		     !sdata->wdev.use_4addr))) {
 		ieee80211_mlo_multicast_tx(dev, skb);
 	} else {
 normal: