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[PATCH 2/2] l2tp: constify inet6_protocol structures

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  [PATCH 2/2] l2tp: constify inet6_protocol structures Julia Lawall <Julia.Lawall@lip6.fr> - 2017-07-28 22:50 +0200

#1699083 — [PATCH 2/2] l2tp: constify inet6_protocol structures

The inet6_protocol structure is only passed as the first argument to
inet6_add_protocol or inet6_del_protocol, both of which are declared as
const.  Thus the inet6_protocol structure itself can be const.

Also drop __read_mostly on the newly const structure.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
 net/l2tp/l2tp_ip6.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 88b397c..d2efcd9 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -788,7 +788,7 @@ static int l2tp_ip6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 	.ops		= &l2tp_ip6_ops,
 };
 
-static struct inet6_protocol l2tp_ip6_protocol __read_mostly = {
+static const struct inet6_protocol l2tp_ip6_protocol = {
 	.handler	= l2tp_ip6_recv,
 };
 

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