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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index edfa15d2e795..93a86397af36 100644
--- 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;