[PATCH ath-next] wifi: ath12k: do WoW offloads only on primary link

[Baochen Qiang]

In case of multi-link connection, WCN7850 firmware crashes due to WoW
offloads enabled on both primary and secondary links.

Change to do it only on primary link to fix it.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1

Fixes: 32f7b19668bd ("wifi: ath12k: support MLO as well if single_chip_mlo_support flag is set")
Signed-off-by: Baochen Qiang <baochen.qiang at oss.qualcomm.com>
---
 drivers/net/wireless/ath/ath12k/wow.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath12k/wow.c b/drivers/net/wireless/ath/ath12k/wow.c
index e8481626f194040cf0728597272801dfd1f8fda4..6448378d85141c5a77c55565ccff1908014e2005 100644
--- a/drivers/net/wireless/ath/ath12k/wow.c
+++ b/drivers/net/wireless/ath/ath12k/wow.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2020 The Linux Foundation. All rights reserved.
- * Copyright (c) 2022-2025 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
  */
 
 #include <linux/delay.h>
@@ -135,6 +135,9 @@ static int ath12k_wow_cleanup(struct ath12k *ar)
 	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
+		if (arvif != &arvif->ahvif->deflink)
+			continue;
+
 		ret = ath12k_wow_vif_cleanup(arvif);
 		if (ret) {
 			ath12k_warn(ar->ab, "failed to clean wow wakeups on vdev %i: %d\n",
@@ -479,8 +482,12 @@ static int ath12k_wow_set_wakeups(struct ath12k *ar,
 	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
+		if (arvif != &arvif->ahvif->deflink)
+			continue;
+
 		if (ath12k_wow_is_p2p_vdev(arvif->ahvif))
 			continue;
+
 		ret = ath12k_wow_vif_set_wakeups(arvif, wowlan);
 		if (ret) {
 			ath12k_warn(ar->ab, "failed to set wow wakeups on vdev %i: %d\n",
@@ -538,6 +545,9 @@ static int ath12k_wow_nlo_cleanup(struct ath12k *ar)
 	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
+		if (arvif != &arvif->ahvif->deflink)
+			continue;
+
 		if (ath12k_wow_is_p2p_vdev(arvif->ahvif))
 			continue;
 
@@ -745,6 +755,9 @@ static int ath12k_wow_arp_ns_offload(struct ath12k *ar, bool enable)
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		ahvif = arvif->ahvif;
 
+		if (arvif != &ahvif->deflink)
+			continue;
+
 		if (ahvif->vdev_type != WMI_VDEV_TYPE_STA)
 			continue;
 
@@ -776,6 +789,9 @@ static int ath12k_gtk_rekey_offload(struct ath12k *ar, bool enable)
 	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
+		if (arvif != &arvif->ahvif->deflink)
+			continue;
+
 		if (arvif->ahvif->vdev_type != WMI_VDEV_TYPE_STA ||
 		    !arvif->is_up ||
 		    !arvif->rekey_data.enable_offload)

---
base-commit: 6a5812e1623723adb18e6217d512274ef0d84015
change-id: 20251103-ath12-primary-link-wow-b4e681476f43

Best regards,
-- 
Baochen Qiang <baochen.qiang at oss.qualcomm.com>