l2tp: define parameters of l2tp_tunnel_find*() as "const"

commit 2f858b928bf5a8174911aaec76b8b72a9ca0533d upstream.

l2tp_tunnel_find() and l2tp_tunnel_find_nth() don't modify "net".

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Giuliano Procida <gprocida@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index be8d7b2b879002d5976d77123c8ae93e07f582d4..a9d4d42e2ef66be5691a60a69e26319584b27938 100644 (file)
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -378,7 +378,7 @@ exist:
 
 /* Lookup a tunnel by id
  */
-struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id)
+struct l2tp_tunnel *l2tp_tunnel_find(const struct net *net, u32 tunnel_id)
 {
        struct l2tp_tunnel *tunnel;
        struct l2tp_net *pn = l2tp_pernet(net);
@@ -396,7 +396,7 @@ struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id)
 }
 EXPORT_SYMBOL_GPL(l2tp_tunnel_find);
 
-struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth)
+struct l2tp_tunnel *l2tp_tunnel_find_nth(const struct net *net, int nth)
 {
        struct l2tp_net *pn = l2tp_pernet(net);
        struct l2tp_tunnel *tunnel;

diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 3a3d96df60710707cf8069b382f1ffb1b1afc9e6..2f9a09097e30325a5ecce7054ec5d9f2be9710e4 100644 (file)
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -239,8 +239,8 @@ struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth,
 struct l2tp_session *l2tp_session_get_by_ifname(const struct net *net,
                                                const char *ifname,
                                                bool do_ref);
-struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id);
-struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth);
+struct l2tp_tunnel *l2tp_tunnel_find(const struct net *net, u32 tunnel_id);
+struct l2tp_tunnel *l2tp_tunnel_find_nth(const struct net *net, int nth);
 
 int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id,
                       u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg,