[PATCH 6.18 250/641] wifi: ath12k: do WoW offloads only on primary link

Greg Kroah-Hartman
2026-02-25T01:46:36Z

6.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Baochen Qiang <baochen.qiang@oss.qualcomm.com>

[ Upstream commit e62102ac9b773bdb08475aa9ca24dea61ae98708 ]

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@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20251103-ath12-primary-link-wow-v1-1-3cf523dc09f0@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath12k/wow.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/wow.c b/drivers/net/wireless/ath/ath12k/wow.c
index e8481626f1940..c78aa95d49791 100644
--- a/drivers/net/wireless/ath/ath12k/wow.c
+++ b/drivers/net/wireless/ath/ath12k/wow.c
@@ -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)
--
2.51.0