ucc_geth: fix for RX skb buffers recycling

This patch implements a proper modification of RX skb buffers before
recycling. Adjusting only skb->data is not enough because after that
skb->tail and skb->len become incorrect.

Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 4a34833..807470e 100644 (file)
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3215,6 +3215,8 @@ static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit
                                           __func__, __LINE__, (u32) skb);
                        if (skb) {
                                skb->data = skb->head + NET_SKB_PAD;
+                               skb->len = 0;
+                               skb_reset_tail_pointer(skb);
                                __skb_queue_head(&ugeth->rx_recycle, skb);
                        }