From: Giuliano Procida <gprocida@google.com>
To: greg@kroah.com
Cc: stable@vger.kernel.org, Guillaume Nault <g.nault@alphalink.fr>,
"David S . Miller" <davem@davemloft.net>,
Giuliano Procida <gprocida@google.com>
Subject: [PATCH v2 08/22] l2tp: define parameters of l2tp_session_get*() as "const"
Date: Fri, 22 May 2020 00:39:23 +0100 [thread overview]
Message-ID: <20200521233937.175182-9-gprocida@google.com> (raw)
In-Reply-To: <20200521233937.175182-1-gprocida@google.com>
From: Guillaume Nault <g.nault@alphalink.fr>
commit 9aaef50c44f132e040dcd7686c8e78a3390037c5 upstream.
Make l2tp_pernet()'s parameter constant, so that l2tp_session_get*() can
declare their "net" variable as "const".
Also constify "ifname" in l2tp_session_get_by_ifname().
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>
---
net/l2tp/l2tp_core.c | 7 ++++---
net/l2tp/l2tp_core.h | 5 +++--
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 440065462a69..be8d7b2b8790 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -119,7 +119,7 @@ static inline struct l2tp_tunnel *l2tp_tunnel(struct sock *sk)
return sk->sk_user_data;
}
-static inline struct l2tp_net *l2tp_pernet(struct net *net)
+static inline struct l2tp_net *l2tp_pernet(const struct net *net)
{
BUG_ON(!net);
@@ -231,7 +231,7 @@ l2tp_session_id_hash(struct l2tp_tunnel *tunnel, u32 session_id)
/* Lookup a session. A new reference is held on the returned session.
* Optionally calls session->ref() too if do_ref is true.
*/
-struct l2tp_session *l2tp_session_get(struct net *net,
+struct l2tp_session *l2tp_session_get(const struct net *net,
struct l2tp_tunnel *tunnel,
u32 session_id, bool do_ref)
{
@@ -306,7 +306,8 @@ EXPORT_SYMBOL_GPL(l2tp_session_get_nth);
/* Lookup a session by interface name.
* This is very inefficient but is only used by management interfaces.
*/
-struct l2tp_session *l2tp_session_get_by_ifname(struct net *net, char *ifname,
+struct l2tp_session *l2tp_session_get_by_ifname(const struct net *net,
+ const char *ifname,
bool do_ref)
{
struct l2tp_net *pn = l2tp_pernet(net);
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index e38db6a807f5..3a3d96df6071 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -231,12 +231,13 @@ static inline struct l2tp_tunnel *l2tp_sock_to_tunnel(struct sock *sk)
return tunnel;
}
-struct l2tp_session *l2tp_session_get(struct net *net,
+struct l2tp_session *l2tp_session_get(const struct net *net,
struct l2tp_tunnel *tunnel,
u32 session_id, bool do_ref);
struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth,
bool do_ref);
-struct l2tp_session *l2tp_session_get_by_ifname(struct net *net, char *ifname,
+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);
--
2.27.0.rc0.183.gde8f92d652-goog
next prev parent reply other threads:[~2020-05-21 23:40 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-21 14:40 [PATCH 00/22] l2tp locking and ordering fixes Giuliano Procida
2020-05-21 14:40 ` [PATCH 01/22] net: l2tp: export debug flags to UAPI Giuliano Procida
2020-05-21 14:40 ` [PATCH 02/22] net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_* Giuliano Procida
2020-05-21 14:40 ` [PATCH 03/22] net: l2tp: ppp: change PPPOL2TP_MSG_* => L2TP_MSG_* Giuliano Procida
2020-05-21 14:40 ` [PATCH 04/22] New kernel function to get IP overhead on a socket Giuliano Procida
2020-05-21 14:40 ` [PATCH 05/22] L2TP:Adjust intf MTU, add underlay L3, L2 hdrs Giuliano Procida
2020-05-21 14:40 ` [PATCH 06/22] l2tp: remove useless duplicate session detection in l2tp_netlink Giuliano Procida
2020-05-21 14:40 ` [PATCH 07/22] l2tp: remove l2tp_session_find() Giuliano Procida
2020-05-21 14:40 ` [PATCH 08/22] l2tp: define parameters of l2tp_session_get*() as "const" Giuliano Procida
2020-05-21 14:40 ` [PATCH 09/22] l2tp: define parameters of l2tp_tunnel_find*() " Giuliano Procida
2020-05-21 14:40 ` [PATCH 10/22] l2tp: initialise session's refcount before making it reachable Giuliano Procida
2020-05-21 14:40 ` [PATCH 11/22] l2tp: hold tunnel while looking up sessions in l2tp_netlink Giuliano Procida
2020-05-21 14:40 ` [PATCH 12/22] l2tp: hold tunnel while processing genl delete command Giuliano Procida
2020-05-21 14:40 ` [PATCH 13/22] l2tp: hold tunnel while handling genl tunnel updates Giuliano Procida
2020-05-21 14:40 ` [PATCH 14/22] l2tp: hold tunnel while handling genl TUNNEL_GET commands Giuliano Procida
2020-05-21 14:40 ` [PATCH 15/22] l2tp: hold tunnel used while creating sessions with netlink Giuliano Procida
2020-05-21 14:40 ` [PATCH 16/22] l2tp: prevent creation of sessions on terminated tunnels Giuliano Procida
2020-05-21 14:40 ` [PATCH 17/22] l2tp: pass tunnel pointer to ->session_create() Giuliano Procida
2020-05-21 14:40 ` [PATCH 18/22] l2tp: fix l2tp_eth module loading Giuliano Procida
2020-05-21 14:40 ` [PATCH 19/22] l2tp: don't register sessions in l2tp_session_create() Giuliano Procida
2020-05-21 14:40 ` [PATCH 20/22] l2tp: initialise l2tp_eth sessions before registering them Giuliano Procida
2020-05-21 14:40 ` [PATCH 21/22] l2tp: protect sock pointer of struct pppol2tp_session with RCU Giuliano Procida
2020-05-21 14:41 ` [PATCH 22/22] l2tp: initialise PPP sessions before registering them Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 00/22] l2tp locking and ordering fixes Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 01/22] net: l2tp: export debug flags to UAPI Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 02/22] net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_* Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 03/22] net: l2tp: ppp: change PPPOL2TP_MSG_* => L2TP_MSG_* Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 04/22] New kernel function to get IP overhead on a socket Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 05/22] L2TP:Adjust intf MTU, add underlay L3, L2 hdrs Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 06/22] l2tp: remove useless duplicate session detection in l2tp_netlink Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 07/22] l2tp: remove l2tp_session_find() Giuliano Procida
2020-05-21 23:39 ` Giuliano Procida [this message]
2020-05-21 23:39 ` [PATCH v2 09/22] l2tp: define parameters of l2tp_tunnel_find*() as "const" Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 10/22] l2tp: initialise session's refcount before making it reachable Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 11/22] l2tp: hold tunnel while looking up sessions in l2tp_netlink Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 12/22] l2tp: hold tunnel while processing genl delete command Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 13/22] l2tp: hold tunnel while handling genl tunnel updates Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 14/22] l2tp: hold tunnel while handling genl TUNNEL_GET commands Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 15/22] l2tp: hold tunnel used while creating sessions with netlink Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 16/22] l2tp: prevent creation of sessions on terminated tunnels Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 17/22] l2tp: pass tunnel pointer to ->session_create() Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 18/22] l2tp: fix l2tp_eth module loading Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 19/22] l2tp: don't register sessions in l2tp_session_create() Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 20/22] l2tp: initialise l2tp_eth sessions before registering them Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 21/22] l2tp: protect sock pointer of struct pppol2tp_session with RCU Giuliano Procida
2020-05-21 23:39 ` [PATCH v2 22/22] l2tp: initialise PPP sessions before registering them Giuliano Procida
2020-05-22 12:15 ` [PATCH v2 00/22] l2tp locking and ordering fixes Greg KH
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