4 files changed, 35 insertions, 6 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 72f73a3abc71..cc6ddc45b416 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1020,7 +1020,7 @@ static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
 	memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
 	len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
 
-	ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, len, cmd);
+	ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
 	if (ret)
 		IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
 }
@@ -1036,7 +1036,7 @@ static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
 	if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
 		return;
 
-	ieee80211_iterate_active_interfaces(
+	ieee80211_iterate_active_interfaces_atomic(
 		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 		iwl_mvm_mc_iface_iterator, &iter_data);
 }
@@ -1832,6 +1832,11 @@ static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 
+	if (iwl_mvm_is_associated(mvm)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
 	switch (mvm->scan_status) {
 	case IWL_MVM_SCAN_OS:
 		IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n");
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 78f3328066dd..a7d27fb37044 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -1030,6 +1030,9 @@ static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)
 	return mvmvif->low_latency;
 }
 
+/* Assoc status */
+bool iwl_mvm_is_associated(struct iwl_mvm *mvm);
+
 /* Thermal management and CT-kill */
 void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff);
 void iwl_mvm_tt_handler(struct iwl_mvm *mvm);
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 4c3577e773a5..9cd0309216df 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -690,3 +690,22 @@ bool iwl_mvm_low_latency(struct iwl_mvm *mvm)
 
 	return result;
 }
+
+static void iwl_mvm_assoc_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
+{
+	bool *assoc = _data;
+
+	if (vif->bss_conf.assoc)
+		*assoc = true;
+}
+
+bool iwl_mvm_is_associated(struct iwl_mvm *mvm)
+{
+	bool assoc = false;
+
+	ieee80211_iterate_active_interfaces_atomic(
+			mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+			iwl_mvm_assoc_iter, &assoc);
+
+	return assoc;
+}
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index f8ebd477bbfc..788085bc65d7 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1854,6 +1854,10 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	 * PCI Tx retries from interfering with C3 CPU state */
 	pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
 
+	trans->dev = &pdev->dev;
+	trans_pcie->pci_dev = pdev;
+	iwl_disable_interrupts(trans);
+
 	err = pci_enable_msi(pdev);
 	if (err) {
 		dev_err(&pdev->dev, "pci_enable_msi failed(0X%x)\n", err);
@@ -1865,8 +1869,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 		}
 	}
 
-	trans->dev = &pdev->dev;
-	trans_pcie->pci_dev = pdev;
 	trans->hw_rev = iwl_read32(trans, CSR_HW_REV);
 	trans->hw_id = (pdev->device << 16) + pdev->subsystem_device;
 	snprintf(trans->hw_id_str, sizeof(trans->hw_id_str),
@@ -1892,8 +1894,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 		goto out_pci_disable_msi;
 	}
 
-	trans_pcie->inta_mask = CSR_INI_SET_MASK;
-
 	if (iwl_pcie_alloc_ict(trans))
 		goto out_free_cmd_pool;
 
@@ -1905,6 +1905,8 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 		goto out_free_ict;
 	}
 
+	trans_pcie->inta_mask = CSR_INI_SET_MASK;
+
 	return trans;
 
 out_free_ict: