diff --git a/[refs] b/[refs]
index 08869cdd1cef..f9c42f96f31a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b2faf597d93bdf5e2d12d93ea0815935a73f749e
+refs/heads/master: fc3fba60f5d292a3b875e2498577fc35bd68b9da
diff --git a/trunk/drivers/net/ppp_generic.c b/trunk/drivers/net/ppp_generic.c
index 1c6d328165bb..0245e40b51a1 100644
--- a/trunk/drivers/net/ppp_generic.c
+++ b/trunk/drivers/net/ppp_generic.c
@@ -1610,6 +1610,8 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb)
 		}
 		else if (!pskb_may_pull(skb, skb->len))
 			goto err;
+		else
+			skb->ip_summed = CHECKSUM_NONE;
 
 		len = slhc_uncompress(ppp->vj, skb->data + 2, skb->len - 2);
 		if (len <= 0) {
@@ -1690,6 +1692,7 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb)
 			kfree_skb(skb);
 		} else {
 			skb_pull(skb, 2);	/* chop off protocol */
+			skb_postpull_rcsum(skb, skb->data - 2, 2);
 			skb->dev = ppp->dev;
 			skb->protocol = htons(npindex_to_ethertype[npi]);
 			skb->mac.raw = skb->data;