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-rw-r--r--drivers/infiniband/sw/rxe/rxe_recv.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_recv.c b/drivers/infiniband/sw/rxe/rxe_recv.c
index a3eed4da1540..da1d96ec1ba6 100644
--- a/drivers/infiniband/sw/rxe/rxe_recv.c
+++ b/drivers/infiniband/sw/rxe/rxe_recv.c
@@ -233,6 +233,8 @@ static void rxe_rcv_mcast_pkt(struct rxe_dev *rxe, struct sk_buff *skb)
struct rxe_mc_elem *mce;
struct rxe_qp *qp;
union ib_gid dgid;
+ struct sk_buff *per_qp_skb;
+ struct rxe_pkt_info *per_qp_pkt;
int err;
if (skb->protocol == htons(ETH_P_IP))
@@ -261,21 +263,26 @@ static void rxe_rcv_mcast_pkt(struct rxe_dev *rxe, struct sk_buff *skb)
if (err)
continue;
- /* if *not* the last qp in the list
- * increase the users of the skb then post to the next qp
+ /* for all but the last qp create a new clone of the
+ * skb and pass to the qp.
*/
if (mce->qp_list.next != &mcg->qp_list)
- skb_get(skb);
+ per_qp_skb = skb_clone(skb, GFP_ATOMIC);
+ else
+ per_qp_skb = skb;
- pkt->qp = qp;
+ per_qp_pkt = SKB_TO_PKT(per_qp_skb);
+ per_qp_pkt->qp = qp;
rxe_add_ref(qp);
- rxe_rcv_pkt(pkt, skb);
+ rxe_rcv_pkt(per_qp_pkt, per_qp_skb);
}
spin_unlock_bh(&mcg->mcg_lock);
rxe_drop_ref(mcg); /* drop ref from rxe_pool_get_key. */
+ return;
+
err1:
kfree_skb(skb);
}