target/linux/generic/pending-4.9/650-pppoe_header_pad.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Subject: pppoe: add extra padding for the header (useful for drivers that need headroom)
   3
   4 lede-commit 6517a757ec711fc3354b857e273e2621042f3c7a
   5 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   6 ---
   7  drivers/net/ppp/pppoe.c | 4 ++--
   8  1 file changed, 2 insertions(+), 2 deletions(-)
   9
  10 --- a/drivers/net/ppp/pppoe.c
  11 +++ b/drivers/net/ppp/pppoe.c
  12 @@ -861,7 +861,7 @@ static int pppoe_sendmsg(struct socket *
  13                 goto end;
  14
  15
  16 -       skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32,
  17 +       skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32 + NET_SKB_PAD,
  18                            0, GFP_KERNEL);
  19         if (!skb) {
  20                 error = -ENOMEM;
  21 @@ -869,7 +869,7 @@ static int pppoe_sendmsg(struct socket *
  22         }
  23
  24         /* Reserve space for headers. */
  25 -       skb_reserve(skb, dev->hard_header_len);
  26 +       skb_reserve(skb, dev->hard_header_len + NET_SKB_PAD);
  27         skb_reset_network_header(skb);
  28
  29         skb->dev = dev;