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Date:   Tue, 21 Jul 2020 18:32:09 +0100
From:   Tom Parkin <>
Cc:     Tom Parkin <>
Subject: [PATCH 17/29] l2tp: avoid precidence issues in L2TP_SKB_CB macro

checkpatch warned about the L2TP_SKB_CB macro's use of its argument: add
braces to avoid the problem.

Signed-off-by: Tom Parkin <>
 net/l2tp/l2tp_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 177accb01993..4973a0f035e3 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -93,7 +93,7 @@ struct l2tp_skb_cb {
 	unsigned long		expires;
-#define L2TP_SKB_CB(skb)	((struct l2tp_skb_cb *)&skb->cb[sizeof(struct inet_skb_parm)])
+#define L2TP_SKB_CB(skb)	((struct l2tp_skb_cb *)&(skb)->cb[sizeof(struct inet_skb_parm)])
 static struct workqueue_struct *l2tp_wq;

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