diff --git a/mt7615/main.c b/mt7615/main.c
index c4e148ef..fc619acb 100644
--- a/mt7615/main.c
+++ b/mt7615/main.c
@@ -97,7 +97,7 @@ static void mt7615_stop(struct ieee80211_hw *hw, bool suspend)
 	struct mt7615_phy *phy = mt7615_hw_phy(hw);
 
 	cancel_delayed_work_sync(&phy->mt76->mac_work);
-	del_timer_sync(&phy->roc_timer);
+	timer_delete_sync(&phy->roc_timer);
 	cancel_work_sync(&phy->roc_work);
 
 	cancel_delayed_work_sync(&dev->pm.ps_work);
@@ -1198,7 +1198,7 @@ static int mt7615_cancel_remain_on_channel(struct ieee80211_hw *hw,
 	if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
 		return 0;
 
-	del_timer_sync(&phy->roc_timer);
+	timer_delete_sync(&phy->roc_timer);
 	cancel_work_sync(&phy->roc_work);
 
 	mt7615_mutex_acquire(phy->dev);
diff --git a/mt7615/pci_mac.c b/mt7615/pci_mac.c
index d83d8ec4..53cb1eed 100644
--- a/mt7615/pci_mac.c
+++ b/mt7615/pci_mac.c
@@ -220,12 +220,12 @@ void mt7615_mac_reset_work(struct work_struct *work)
 	set_bit(MT76_MCU_RESET, &dev->mphy.state);
 	wake_up(&dev->mt76.mcu.wait);
 	cancel_delayed_work_sync(&dev->mphy.mac_work);
-	del_timer_sync(&dev->phy.roc_timer);
+	timer_delete_sync(&dev->phy.roc_timer);
 	cancel_work_sync(&dev->phy.roc_work);
 	if (phy2) {
 		set_bit(MT76_RESET, &phy2->mt76->state);
 		cancel_delayed_work_sync(&phy2->mt76->mac_work);
-		del_timer_sync(&phy2->roc_timer);
+		timer_delete_sync(&phy2->roc_timer);
 		cancel_work_sync(&phy2->roc_work);
 	}
 
diff --git a/mt7615/usb.c b/mt7615/usb.c
index 7736ae3f..d91feffa 100644
--- a/mt7615/usb.c
+++ b/mt7615/usb.c
@@ -85,7 +85,7 @@ static void mt7663u_stop(struct ieee80211_hw *hw, bool suspend)
 	struct mt7615_dev *dev = hw->priv;
 
 	clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
-	del_timer_sync(&phy->roc_timer);
+	timer_delete_sync(&phy->roc_timer);
 	cancel_work_sync(&phy->roc_work);
 	cancel_delayed_work_sync(&phy->scan_work);
 	cancel_delayed_work_sync(&phy->mt76->mac_work);
diff --git a/mt7921/main.c b/mt7921/main.c
index 66051b05..32b46c99 100644
--- a/mt7921/main.c
+++ b/mt7921/main.c
@@ -371,7 +371,7 @@ void mt7921_roc_abort_sync(struct mt792x_dev *dev)
 {
 	struct mt792x_phy *phy = &dev->phy;
 
-	del_timer_sync(&phy->roc_timer);
+	timer_delete_sync(&phy->roc_timer);
 	cancel_work_sync(&phy->roc_work);
 	if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
 		ieee80211_iterate_interfaces(mt76_hw(dev),
@@ -402,7 +402,7 @@ static int mt7921_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif)
 {
 	int err = 0;
 
-	del_timer_sync(&phy->roc_timer);
+	timer_delete_sync(&phy->roc_timer);
 	cancel_work_sync(&phy->roc_work);
 
 	mt792x_mutex_acquire(phy->dev);
@@ -1494,7 +1494,7 @@ static void mt7921_abort_channel_switch(struct ieee80211_hw *hw,
 {
 	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 
-	del_timer_sync(&mvif->csa_timer);
+	timer_delete_sync(&mvif->csa_timer);
 	cancel_work_sync(&mvif->csa_work);
 }
 
diff --git a/mt7925/main.c b/mt7925/main.c
index a549720d..1fea2e80 100644
--- a/mt7925/main.c
+++ b/mt7925/main.c
@@ -461,7 +461,7 @@ void mt7925_roc_abort_sync(struct mt792x_dev *dev)
 {
 	struct mt792x_phy *phy = &dev->phy;
 
-	del_timer_sync(&phy->roc_timer);
+	timer_delete_sync(&phy->roc_timer);
 	cancel_work_sync(&phy->roc_work);
 	if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
 		ieee80211_iterate_interfaces(mt76_hw(dev),
@@ -493,7 +493,7 @@ static int mt7925_abort_roc(struct mt792x_phy *phy,
 {
 	int err = 0;
 
-	del_timer_sync(&phy->roc_timer);
+	timer_delete_sync(&phy->roc_timer);
 	cancel_work_sync(&phy->roc_work);
 
 	mt792x_mutex_acquire(phy->dev);
diff --git a/mt792x_core.c b/mt792x_core.c
index 54d887c9..f318a53e 100644
--- a/mt792x_core.c
+++ b/mt792x_core.c
@@ -362,7 +362,7 @@ void mt792x_unassign_vif_chanctx(struct ieee80211_hw *hw,
 	mutex_unlock(&dev->mt76.mutex);
 
 	if (vif->bss_conf.csa_active) {
-		del_timer_sync(&mvif->csa_timer);
+		timer_delete_sync(&mvif->csa_timer);
 		cancel_work_sync(&mvif->csa_work);
 	}
 }