6.15-stable review patch. If anyone has any objections, please let me know.
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From: Sarika Sharma quic_sarishar@quicinc.com
[ Upstream commit 4541b0c8c3c1b85564971d497224e57cf8076a02 ]
Currently, RX is_mcbc bit is set for packets sent from client as destination address (DA) is multicast/broadcast address, but packets are actually unicast as receiver address (RA) is not multicast address. Hence, packets are not handled properly due to this is_mcbc bit.
Therefore, reset the is_mcbc bit if interface type is AP.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Signed-off-by: Sarika Sharma quic_sarishar@quicinc.com Reviewed-by: Vasanthakumar Thiagarajan vasanthakumar.thiagarajan@oss.qualcomm.com Link: https://patch.msgid.link/20250411061523.859387-3-quic_sarishar@quicinc.com Signed-off-by: Jeff Johnson jeff.johnson@oss.qualcomm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath12k/dp_rx.c | 5 +++++ drivers/net/wireless/ath/ath12k/peer.c | 5 ++++- drivers/net/wireless/ath/ath12k/peer.h | 3 ++- 3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c index 7fadd366ec13d..8b1b038d67667 100644 --- a/drivers/net/wireless/ath/ath12k/dp_rx.c +++ b/drivers/net/wireless/ath/ath12k/dp_rx.c @@ -2259,6 +2259,11 @@ static void ath12k_dp_rx_h_mpdu(struct ath12k *ar, spin_lock_bh(&ar->ab->base_lock); peer = ath12k_dp_rx_h_find_peer(ar->ab, msdu, rx_info); if (peer) { + /* resetting mcbc bit because mcbc packets are unicast + * packets only for AP as STA sends unicast packets. + */ + rxcb->is_mcbc = rxcb->is_mcbc && !peer->ucast_ra_only; + if (rxcb->is_mcbc) enctype = peer->sec_type_grp; else diff --git a/drivers/net/wireless/ath/ath12k/peer.c b/drivers/net/wireless/ath/ath12k/peer.c index 792cca8a3fb1b..ec7236bbccc0f 100644 --- a/drivers/net/wireless/ath/ath12k/peer.c +++ b/drivers/net/wireless/ath/ath12k/peer.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: BSD-3-Clause-Clear /* * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. - * Copyright (c) 2021-2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2021-2022, 2024-2025 Qualcomm Innovation Center, Inc. All rights reserved. */
#include "core.h" @@ -383,6 +383,9 @@ int ath12k_peer_create(struct ath12k *ar, struct ath12k_link_vif *arvif, arvif->ast_idx = peer->hw_peer_id; }
+ if (vif->type == NL80211_IFTYPE_AP) + peer->ucast_ra_only = true; + if (sta) { ahsta = ath12k_sta_to_ahsta(sta); arsta = wiphy_dereference(ath12k_ar_to_hw(ar)->wiphy, diff --git a/drivers/net/wireless/ath/ath12k/peer.h b/drivers/net/wireless/ath/ath12k/peer.h index 5870ee11a8c7e..f3a5e054d2b55 100644 --- a/drivers/net/wireless/ath/ath12k/peer.h +++ b/drivers/net/wireless/ath/ath12k/peer.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: BSD-3-Clause-Clear */ /* * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. - * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved. */
#ifndef ATH12K_PEER_H @@ -62,6 +62,7 @@ struct ath12k_peer {
/* for reference to ath12k_link_sta */ u8 link_id; + bool ucast_ra_only; };
struct ath12k_ml_peer {