diff options
| author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-05-23 13:48:37 +1000 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-05-23 13:48:37 +1000 |
| commit | c1e554aeea12d2dab5183e011c27dee6142dc927 (patch) | |
| tree | a44908fa5c2f1f24b6f7e7313b60e49cd3235cdd /drivers/net/pppol2tp.c | |
| parent | c203e45f069af47ca7623e4dcd8c00bfba2722e4 (diff) | |
| parent | 78b58e549a3098a8c1408d0214bd25e5d5e7a3a3 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'drivers/net/pppol2tp.c')
| -rw-r--r-- | drivers/net/pppol2tp.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c index 79359919335b..8db342f2fdc9 100644 --- a/drivers/net/pppol2tp.c +++ b/drivers/net/pppol2tp.c @@ -980,6 +980,8 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) __wsum csum = 0; struct udphdr *uh; unsigned int len; + int old_headroom; + int new_headroom; if (sock_flag(sk, SOCK_DEAD) || !(sk->sk_state & PPPOX_CONNECTED)) goto abort; @@ -1001,16 +1003,18 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) /* Check that there's enough headroom in the skb to insert IP, * UDP and L2TP and PPP headers. If not enough, expand it to - * make room. Note that a new skb (or a clone) is - * allocated. If we return an error from this point on, make - * sure we free the new skb but do not free the original skb - * since that is done by the caller for the error case. + * make room. Adjust truesize. */ headroom = NET_SKB_PAD + sizeof(struct iphdr) + sizeof(struct udphdr) + hdr_len + sizeof(ppph); + old_headroom = skb_headroom(skb); if (skb_cow_head(skb, headroom)) goto abort; + new_headroom = skb_headroom(skb); + skb_orphan(skb); + skb->truesize += new_headroom - old_headroom; + /* Setup PPP header */ __skb_push(skb, sizeof(ppph)); skb->data[0] = ppph[0]; @@ -1065,7 +1069,6 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) /* Get routing info from the tunnel socket */ dst_release(skb->dst); skb->dst = dst_clone(__sk_dst_get(sk_tun)); - skb_orphan(skb); skb->sk = sk_tun; /* Queue the packet to IP for output */ |