netdev - [PATCH net-next 6/6] gtp: reset mac

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Message-ID: <0afd995463a3a2b4811b0b15f55deccbe0eaf5a1.1624572003.git.gnault@redhat.com>
Date:   Fri, 25 Jun 2021 15:33:23 +0200
From:   Guillaume Nault <gnault@...hat.com>
To:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, Pablo Neira Ayuso <pablo@...filter.org>,
        Harald Welte <laforge@...monks.org>,
        Andreas Schultz <aschultz@...p.net>,
        Jonas Bonn <jonas@...rbonn.se>
Subject: [PATCH net-next 6/6] gtp: reset mac_header after decap

For consistency with other L3 tunnel devices, reset the mac_header
pointer after decapsulation. This makes the mac_header 0 bytes long,
thus making it clear that this skb has no mac_header.

Compile tested only.

Signed-off-by: Guillaume Nault <gnault@...hat.com>
---
 drivers/net/gtp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 1c9023d47e00..30e0a10595a1 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -201,6 +201,7 @@ static int gtp_rx(struct pdp_ctx *pctx, struct sk_buff *skb,
 	 * calculate the transport header.
 	 */
 	skb_reset_network_header(skb);
+	skb_reset_mac_header(skb);
 
 	skb->dev = pctx->dev;
 
-- 
2.21.3