1 files changed, 15 insertions, 7 deletions

diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 88907218457..cc240adb726 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -403,6 +403,7 @@ spider_net_prepare_rx_descr(struct spider_net_card *card,
 	if (!descr->skb) {
 		if (netif_msg_rx_err(card) && net_ratelimit())
 			pr_err("Not enough memory to allocate rx buffer\n");
+		card->spider_stats.alloc_rx_skb_error++;
 		return -ENOMEM;
 	}
 	descr->buf_size = bufsize;
@@ -423,6 +424,7 @@ spider_net_prepare_rx_descr(struct spider_net_card *card,
 		dev_kfree_skb_any(descr->skb);
 		if (netif_msg_rx_err(card) && net_ratelimit())
 			pr_err("Could not iommu-map rx buffer\n");
+		card->spider_stats.rx_iommu_map_error++;
 		descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
 	} else {
 		descr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED |
@@ -651,6 +653,7 @@ spider_net_prepare_tx_descr(struct spider_net_card *card,
 		if (netif_msg_tx_err(card) && net_ratelimit())
 			pr_err("could not iommu-map packet (%p, %i). "
 				  "Dropping packet\n", skb->data, skb->len);
+		card->spider_stats.tx_iommu_map_error++;
 		return -ENOMEM;
 	}
 
@@ -818,6 +821,7 @@ spider_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 	}
 
 	if (spider_net_get_descr_status(descr) != SPIDER_NET_DESCR_NOT_IN_USE) {
+		card->netdev_stats.tx_dropped++;
 		result = NETDEV_TX_LOCKED;
 		goto out;
 	}
@@ -913,6 +917,7 @@ spider_net_pass_skb_up(struct spider_net_descr *descr,
 			pr_err("error in received descriptor found, "
 			       "data_status=x%08x, data_error=x%08x\n",
 			       data_status, data_error);
+		card->spider_stats.rx_desc_error++;
 		return 0;
 	}
 
@@ -1010,9 +1015,11 @@ spider_net_decode_one_descr(struct spider_net_card *card, int napi)
 
 	if ( (status != SPIDER_NET_DESCR_COMPLETE) &&
 	     (status != SPIDER_NET_DESCR_FRAME_END) ) {
-		if (netif_msg_rx_err(card))
+		if (netif_msg_rx_err(card)) {
 			pr_err("%s: RX descriptor with state %d\n",
 			       card->netdev->name, status);
+			card->spider_stats.rx_desc_unk_state++;
+		}
 		goto refill;
 	}
 
@@ -1697,10 +1704,10 @@ spider_net_setup_phy(struct spider_net_card *card)
  */
 static int
 spider_net_download_firmware(struct spider_net_card *card,
-			     u8 *firmware_ptr)
+			     const void *firmware_ptr)
 {
 	int sequencer, i;
-	u32 *fw_ptr = (u32 *)firmware_ptr;
+	const u32 *fw_ptr = firmware_ptr;
 
 	/* stop sequencers */
 	spider_net_write_reg(card, SPIDER_NET_GSINIT,
@@ -1757,7 +1764,7 @@ spider_net_init_firmware(struct spider_net_card *card)
 {
 	struct firmware *firmware = NULL;
 	struct device_node *dn;
-	u8 *fw_prop = NULL;
+	const u8 *fw_prop = NULL;
 	int err = -ENOENT;
 	int fw_size;
 
@@ -1783,7 +1790,7 @@ try_host_fw:
 	if (!dn)
 		goto out_err;
 
-	fw_prop = (u8 *)get_property(dn, "firmware", &fw_size);
+	fw_prop = get_property(dn, "firmware", &fw_size);
 	if (!fw_prop)
 		goto out_err;
 
@@ -1934,6 +1941,7 @@ spider_net_tx_timeout(struct net_device *netdev)
 		schedule_work(&card->tx_timeout_task);
 	else
 		atomic_dec(&card->tx_timeout_task_counter);
+	card->spider_stats.tx_timeouts++;
 }
 
 /**
@@ -1986,7 +1994,7 @@ spider_net_setup_netdev(struct spider_net_card *card)
 	struct net_device *netdev = card->netdev;
 	struct device_node *dn;
 	struct sockaddr addr;
-	u8 *mac;
+	const u8 *mac;
 
 	SET_MODULE_OWNER(netdev);
 	SET_NETDEV_DEV(netdev, &card->pdev->dev);
@@ -2019,7 +2027,7 @@ spider_net_setup_netdev(struct spider_net_card *card)
 	if (!dn)
 		return -EIO;
 
-	mac = (u8 *)get_property(dn, "local-mac-address", NULL);
+	mac = get_property(dn, "local-mac-address", NULL);
 	if (!mac)
 		return -EIO;
 	memcpy(addr.sa_data, mac, ETH_ALEN);