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* [PATCH] wifi: cfg80211: Allow action frames to be transmitted with link BSS in MLD
@ 2023-02-01  6:16 Rameshkumar Sundaram
  0 siblings, 0 replies; only message in thread
From: Rameshkumar Sundaram @ 2023-02-01  6:16 UTC (permalink / raw)
  To: johannes; +Cc: linux-wireless, Rameshkumar Sundaram

Currently action frames TX only with ML address as A3(BSSID) are
allowed in an ML AP, but TX for a non-ML Station can happen in any
link of an ML BSS with link BSS address as A3.
In case of an MLD, if User-space has provided a valid link_id in
action frame TX request, allow transmission of the frame in that link.

Signed-off-by: Rameshkumar Sundaram <>
 net/wireless/mlme.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 58e1fb18f85a..81d3f40d6235 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -742,7 +742,10 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 		case NL80211_IFTYPE_AP:
 		case NL80211_IFTYPE_P2P_GO:
 		case NL80211_IFTYPE_AP_VLAN:
-			if (!ether_addr_equal(mgmt->bssid, wdev_address(wdev)))
+			if (!ether_addr_equal(mgmt->bssid, wdev_address(wdev)) &&
+			    (params->link_id < 0 ||
+			     !ether_addr_equal(mgmt->bssid,
+					       wdev->links[params->link_id].addr)))
 				err = -EINVAL;
 		case NL80211_IFTYPE_MESH_POINT:

base-commit: 4ca69027691a0039279b64cfa0aa511d9c9fde59

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2023-02-01  6:16 [PATCH] wifi: cfg80211: Allow action frames to be transmitted with link BSS in MLD Rameshkumar Sundaram

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