ppp: fix truesize underestimation

When building frag_list, head truesize should be sum of all frag
truesize.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index edfa15d2e79501deabe2e3c3481378d1a8ac7bb7..93a86397af36a970ff2dcb18708b70eea4e966a6 100644 (file)
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -2113,7 +2113,7 @@ ppp_mp_reconstruct(struct ppp *ppp)
 
                                skb->len += p->len;
                                skb->data_len += p->len;
-                               skb->truesize += p->len;
+                               skb->truesize += p->truesize;
 
                                if (p == tail)
                                        break;