[PATCH 4.4 47/65] l2tp: define parameters of l2tp_tunnel_find*() as "const"

From: Greg Kroah-Hartman
Date: Tue May 26 2020 - 14:57:16 EST

From: Guillaume Nault <g.nault@xxxxxxxxxxxx>

commit 2f858b928bf5a8174911aaec76b8b72a9ca0533d upstream.

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

Signed-off-by: Guillaume Nault <g.nault@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Giuliano Procida <gprocida@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
net/l2tp/l2tp_core.c | 4 ++--
net/l2tp/l2tp_core.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

--- 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(str

-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;
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -242,8 +242,8 @@ struct l2tp_session *l2tp_session_get_nt
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,