diff mbox series

[RFC,08/12] mt76x02: disable HW encryption for group frames

Message ID 1551341013-24519-9-git-send-email-sgruszka@redhat.com (mailing list archive)
State RFC
Delegated to: Kalle Valo
Headers show
Series mt76x02: AP support for with PS | expand

Commit Message

Stanislaw Gruszka Feb. 28, 2019, 8:03 a.m. UTC 
This is required to sent multicast/broadcast frames in USB AP
mode just after beacon.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
---
 drivers/net/wireless/mediatek/mt76/mt76x02_util.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
index 97a8aa30c333..6e5ad900bf4e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
@@ -418,6 +418,16 @@  int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	    !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
 		return -EOPNOTSUPP;
 
+	/*
+	 * In USB AP mode, broadcast/multicast frames are setup in beacon
+	 * data registers and sent via HW beacons engine, they require to
+	 * be already encrypted.
+	 */
+	if (mt76_is_usb(dev) &&
+	    vif->type == NL80211_IFTYPE_AP &&
+	    !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
+		return -EOPNOTSUPP;
+
 	msta = sta ? (struct mt76x02_sta *) sta->drv_priv : NULL;
 	wcid = msta ? &msta->wcid : &mvif->group_wcid;