4 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c
index 3dfebfb8434..54c41b44bff 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.c
+++ b/drivers/net/wireless/iwlwifi/iwl-io.c
@@ -327,11 +327,11 @@ u32 iwl_read_targ_mem(struct iwl_trans *trans, u32 addr)
 EXPORT_SYMBOL_GPL(iwl_read_targ_mem);
 
 int _iwl_write_targ_mem_dwords(struct iwl_trans *trans, u32 addr,
-			       void *buf, int dwords)
+			       const void *buf, int dwords)
 {
 	unsigned long flags;
 	int offs, result = 0;
-	u32 *vals = buf;
+	const u32 *vals = buf;
 
 	spin_lock_irqsave(&trans->reg_lock, flags);
 	if (likely(iwl_grab_nic_access(trans))) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h
index 50d3819739d..e1aa69f66de 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.h
+++ b/drivers/net/wireless/iwlwifi/iwl-io.h
@@ -87,7 +87,7 @@ void _iwl_read_targ_mem_dwords(struct iwl_trans *trans, u32 addr,
 	} while (0)
 
 int _iwl_write_targ_mem_dwords(struct iwl_trans *trans, u32 addr,
-			       void *buf, int dwords);
+			       const void *buf, int dwords);
 
 u32 iwl_read_targ_mem(struct iwl_trans *trans, u32 addr);
 int iwl_write_targ_mem(struct iwl_trans *trans, u32 addr, u32 val);
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index 9253ef1dba7..c3a4bb41e53 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -213,6 +213,9 @@
 #define SCD_CONTEXT_QUEUE_OFFSET(x)\
 	(SCD_CONTEXT_MEM_LOWER_BOUND + ((x) * 8))
 
+#define SCD_TX_STTS_QUEUE_OFFSET(x)\
+	(SCD_TX_STTS_MEM_LOWER_BOUND + ((x) * 16))
+
 #define SCD_TRANS_TBL_OFFSET_QUEUE(x) \
 	((SCD_TRANS_TBL_MEM_LOWER_BOUND + ((x) * 2)) & 0xfffc)
 
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index b50d1b4a4fc..f3c23afbbe6 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -481,6 +481,9 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	u16 rd_ptr, wr_ptr;
+	u32 stts_addr = trans_pcie->scd_base_addr +
+			SCD_TX_STTS_QUEUE_OFFSET(txq_id);
+	static const u32 zero_val[4] = {};
 	int n_bd = trans_pcie->txq[txq_id].q.n_bd;
 
 	if (!test_and_clear_bit(txq_id, trans_pcie->queue_used)) {
@@ -494,6 +497,9 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id)
 	WARN_ONCE(rd_ptr != wr_ptr, "queue %d isn't empty: [%d,%d]",
 		  txq_id, rd_ptr, wr_ptr);
 
+	_iwl_write_targ_mem_dwords(trans, stts_addr,
+				   zero_val, ARRAY_SIZE(zero_val));
+
 	iwl_txq_set_inactive(trans, txq_id);
 	IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id);
 }