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

From: Felix Fietkau <nbd@nbd.name>
Subject: pppoe: add extra padding for the header (useful for drivers that need headroom)

lede-commit 6517a757ec711fc3354b857e273e2621042f3c7a
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 drivers/net/ppp/pppoe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -861,7 +861,7 @@ static int pppoe_sendmsg(struct socket *
 		goto end;
 
 
-	skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32,
+	skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32 + NET_SKB_PAD,
 			   0, GFP_KERNEL);
 	if (!skb) {
 		error = -ENOMEM;
@@ -869,7 +869,7 @@ static int pppoe_sendmsg(struct socket *
 	}
 
 	/* Reserve space for headers. */
-	skb_reserve(skb, dev->hard_header_len);
+	skb_reserve(skb, dev->hard_header_len + NET_SKB_PAD);
 	skb_reset_network_header(skb);
 
 	skb->dev = dev;