ibmvnic: correctly use dev_consume/free_skb_irq

It is more correct to use dev_kfree_skb_irq when packets are dropped,
and to use dev_consume_skb_irq when packets are consumed.

Fixes: 0d973388185d ("ibmvnic: Introduce xmit_more support using batched subCRQ hcalls")
Suggested-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: Lijun Pan <lijunp213@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 9c6438d3b3a5be52fe3cd02f97481964b6bcedf7..110a0d0eaabb5166238b5da4b8bafd4185e072b8 100644 (file)
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -3204,9 +3204,6 @@ restart_loop:
 
                next = ibmvnic_next_scrq(adapter, scrq);
                for (i = 0; i < next->tx_comp.num_comps; i++) {
-                       if (next->tx_comp.rcs[i])
-                               dev_err(dev, "tx error %x\n",
-                                       next->tx_comp.rcs[i]);
                        index = be32_to_cpu(next->tx_comp.correlators[i]);
                        if (index & IBMVNIC_TSO_POOL_MASK) {
                                tx_pool = &adapter->tso_pool[pool];
@@ -3220,7 +3217,13 @@ restart_loop:
                        num_entries += txbuff->num_entries;
                        if (txbuff->skb) {
                                total_bytes += txbuff->skb->len;
-                               dev_consume_skb_irq(txbuff->skb);
+                               if (next->tx_comp.rcs[i]) {
+                                       dev_err(dev, "tx error %x\n",
+                                               next->tx_comp.rcs[i]);
+                                       dev_kfree_skb_irq(txbuff->skb);
+                               } else {
+                                       dev_consume_skb_irq(txbuff->skb);
+                               }
                                txbuff->skb = NULL;
                        } else {
                                netdev_warn(adapter->netdev,