r8152: calculate the dropped packets for rx

Continue dealing with the remain rx packets, even though the allocation
of the skb fail. This could calculate the correct dropped packets.

Change-Id: Ic7fbe722e41b379f0bcf892356c9b00eacae82dc
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Aly Hirani <ahirani@nvidia.com>
Reviewed-on: http://git-master/r/390295
(cherry picked from commit 36eb4f48ca9366207524859b84e439c8fb0ed6f2)
Reviewed-on: http://git-master/r/396897
Reviewed-by: Preetham Chandru <pchandru@nvidia.com>
Tested-by: Preetham Chandru <pchandru@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/usb/r8152_shield.c b/drivers/net/usb/r8152_shield.c
index b9811a971..9c3ca4c38 100644
--- a/drivers/net/usb/r8152_shield.c
+++ b/drivers/net/usb/r8152_shield.c
@@ -1454,7 +1454,7 @@ static void rx_bottom(struct r8152 *tp)
                         skb = netdev_alloc_skb_ip_align(netdev, pkt_len);
                         if (!skb) {
                                 stats->rx_dropped++;
-                                break;
+                                goto find_next_rx;
                         }
                         memcpy(skb->data, rx_data, pkt_len);
                         skb_put(skb, pkt_len);
@@ -1463,6 +1463,7 @@ static void rx_bottom(struct r8152 *tp)
                         stats->rx_packets++;
                         stats->rx_bytes += pkt_len;
 
+find_next_rx:
                         rx_data = rx_agg_align(rx_data + pkt_len + CRC_SIZE);
                         rx_desc = (struct rx_desc *)rx_data;
                         len_used = (int)(rx_data - (u8 *)agg->head);