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[PPP]: Fixed hardware RX checksum handling

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When we pull the PPP protocol off the skb, we forgot to update the
hardware RX checksum.  This may lead to messages such as

	dsl0: hw csum failure.

Similarly, we need to clear the hardware checksum flag when we use
the existing packet to store the decompressed result.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2006-02-05 20:23:33 -08:00 committed by David S. Miller
parent 410c05427a
commit e3f749c4af
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ppp_generic.c
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@ -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;