--- a/drivers/net/wireless/iwlwifi/dvm/calib.c
+++ b/drivers/net/wireless/iwlwifi/dvm/calib.c
@@ -121,7 +121,7 @@ int iwl_calib_set(struct iwl_priv *priv,
 	struct iwl_calib_result *res, *tmp;
 
 	res = kmalloc(sizeof(*res) + len - sizeof(struct iwl_calib_hdr),
-		      GFP_ATOMIC);
+		      GFP_ATOMIC | GFP_LX_DMA);
 	if (!res)
 		return -ENOMEM;
 	memcpy(&res->hdr, cmd, len);
--- a/drivers/net/wireless/iwlwifi/dvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/dvm/scan.c
@@ -672,7 +672,7 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 		ctx = iwl_rxon_ctx_from_vif(vif);
 
 	if (!priv->scan_cmd) {
-		priv->scan_cmd = kmalloc(scan_cmd_size, GFP_KERNEL);
+		priv->scan_cmd = kmalloc(scan_cmd_size, GFP_KERNEL | GFP_LX_DMA);
 		if (!priv->scan_cmd) {
 			IWL_DEBUG_SCAN(priv,
 				       "fail to allocate memory for scan\n");
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1593,7 +1593,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 				  sizeof(struct iwl_device_cmd)
 				  + trans->dev_cmd_headroom,
 				  sizeof(void *),
-				  SLAB_HWCACHE_ALIGN,
+				  SLAB_HWCACHE_ALIGN | SLAB_LX_DMA,
 				  NULL);
 
 	if (!trans->dev_cmd_pool) {
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -492,7 +492,7 @@ static int iwl_pcie_txq_alloc(struct iwl_trans *trans,
 
 	txq->entries = kcalloc(slots_num,
 			       sizeof(struct iwl_pcie_txq_entry),
-			       GFP_KERNEL);
+			       GFP_KERNEL | GFP_LX_DMA);
 
 	if (!txq->entries)
 		goto error;
@@ -501,7 +501,7 @@ static int iwl_pcie_txq_alloc(struct iwl_trans *trans,
 		for (i = 0; i < slots_num; i++) {
 			txq->entries[i].cmd =
 				kmalloc(sizeof(struct iwl_device_cmd),
-					GFP_KERNEL);
+					GFP_KERNEL | GFP_LX_DMA);
 			if (!txq->entries[i].cmd)
 				goto error;
 		}
@@ -840,7 +840,7 @@ static int iwl_pcie_tx_alloc(struct iwl_trans *trans)
 	}
 
 	trans_pcie->txq = kcalloc(trans->cfg->base_params->num_of_queues,
-				  sizeof(struct iwl_txq), GFP_KERNEL);
+				  sizeof(struct iwl_txq), GFP_KERNEL | GFP_LX_DMA);
 	if (!trans_pcie->txq) {
 		IWL_ERR(trans, "Not enough memory for txq\n");
 		ret = -ENOMEM;
@@ -1255,7 +1255,7 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans,
 			}
 
 			dup_buf = kmemdup(cmddata[i], cmdlen[i],
-					  GFP_ATOMIC);
+					  GFP_ATOMIC | GFP_LX_DMA);
 			if (!dup_buf)
 				return -ENOMEM;
 		} else {
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -125,6 +125,8 @@ static void *__kmalloc_reserve(size_t size, gfp_t flags, int node,
 	void *obj;
 	bool ret_pfmemalloc = false;
 
+	flags |= GFP_LX_DMA;
+
 	/*
 	 * Try a regular allocation, when that fails and we're not entitled
 	 * to the reserves, fail.