[PATCH net-next 5/7] net: bridge: constify variables in the replay helpers

[Vladimir Oltean <olteanv@gmail.com>]

From: Vladimir Oltean <vladimir.oltean@nxp.com>

Some of the arguments and local variables for the newly added switchdev
replay helpers can be const, so let's make them so.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
 include/linux/if_bridge.h | 16 ++++++++--------
 net/bridge/br_fdb.c       |  6 +++---
 net/bridge/br_mdb.c       |  8 ++++----
 net/bridge/br_stp.c       |  4 ++--
 4 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index c7042b2f6a91..6b54da2c65ba 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -104,8 +104,8 @@ static inline bool br_multicast_router(const struct net_device *dev)
 {
 	return false;
 }
-static inline int br_mdb_replay(struct net_device *br_dev,
-				struct net_device *dev, const void *ctx,
+static inline int br_mdb_replay(const struct net_device *br_dev,
+				const struct net_device *dev, const void *ctx,
 				struct notifier_block *nb,
 				struct netlink_ext_ack *extack)
 {
@@ -166,9 +166,9 @@ struct net_device *br_fdb_find_port(const struct net_device *br_dev,
 void br_fdb_clear_offload(const struct net_device *dev, u16 vid);
 bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag);
 u8 br_port_get_stp_state(const struct net_device *dev);
-clock_t br_get_ageing_time(struct net_device *br_dev);
-int br_fdb_replay(struct net_device *br_dev, struct net_device *dev,
-		  void *ctx, struct notifier_block *nb);
+clock_t br_get_ageing_time(const struct net_device *br_dev);
+int br_fdb_replay(const struct net_device *br_dev, const struct net_device *dev,
+		  const void *ctx, struct notifier_block *nb);
 #else
 static inline struct net_device *
 br_fdb_find_port(const struct net_device *br_dev,
@@ -193,13 +193,13 @@ static inline u8 br_port_get_stp_state(const struct net_device *dev)
 	return BR_STATE_DISABLED;
 }
 
-static inline clock_t br_get_ageing_time(struct net_device *br_dev)
+static inline clock_t br_get_ageing_time(const struct net_device *br_dev)
 {
 	return 0;
 }
 
-static inline int br_fdb_replay(struct net_device *br_dev,
-				struct net_device *dev, const void *ctx,
+static inline int br_fdb_replay(const struct net_device *br_dev,
+				const struct net_device *dev, const void *ctx,
 				struct notifier_block *nb)
 {
 	return -EOPNOTSUPP;
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 9d164a518e38..2e777c8b0921 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -727,7 +727,7 @@ static inline size_t fdb_nlmsg_size(void)
 }
 
 static int br_fdb_replay_one(struct notifier_block *nb,
-			     struct net_bridge_fdb_entry *fdb,
+			     const struct net_bridge_fdb_entry *fdb,
 			     struct net_device *dev, const void *ctx)
 {
 	struct switchdev_notifier_fdb_info item;
@@ -745,7 +745,7 @@ static int br_fdb_replay_one(struct notifier_block *nb,
 	return notifier_to_errno(err);
 }
 
-int br_fdb_replay(struct net_device *br_dev, struct net_device *dev,
+int br_fdb_replay(const struct net_device *br_dev, const struct net_device *dev,
 		  const void *ctx, struct notifier_block *nb)
 {
 	struct net_bridge_fdb_entry *fdb;
@@ -760,7 +760,7 @@ int br_fdb_replay(struct net_device *br_dev, struct net_device *dev,
 	rcu_read_lock();
 
 	hlist_for_each_entry_rcu(fdb, &br->fdb_list, fdb_node) {
-		struct net_bridge_port *dst = READ_ONCE(fdb->dst);
+		const struct net_bridge_port *dst = READ_ONCE(fdb->dst);
 		struct net_device *dst_dev;
 
 		dst_dev = dst ? dst->dev : br->dev;
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 8bc6afca5e8c..cebdbff17b54 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -567,7 +567,7 @@ static void br_switchdev_mdb_populate(struct switchdev_obj_port_mdb *mdb,
 }
 
 static int br_mdb_replay_one(struct notifier_block *nb, struct net_device *dev,
-			     struct switchdev_obj_port_mdb *mdb,
+			     const struct switchdev_obj_port_mdb *mdb,
 			     const void *ctx, struct netlink_ext_ack *extack)
 {
 	struct switchdev_notifier_port_obj_info obj_info = {
@@ -607,7 +607,7 @@ int br_mdb_replay(struct net_device *br_dev, struct net_device *dev,
 		  const void *ctx, struct notifier_block *nb,
 		  struct netlink_ext_ack *extack)
 {
-	struct net_bridge_mdb_entry *mp;
+	const struct net_bridge_mdb_entry *mp;
 	struct switchdev_obj *obj, *tmp;
 	struct net_bridge *br;
 	LIST_HEAD(mdb_list);
@@ -634,8 +634,8 @@ int br_mdb_replay(struct net_device *br_dev, struct net_device *dev,
 	rcu_read_lock();
 
 	hlist_for_each_entry_rcu(mp, &br->mdb_list, mdb_node) {
-		struct net_bridge_port_group __rcu **pp;
-		struct net_bridge_port_group *p;
+		struct net_bridge_port_group __rcu * const *pp;
+		const struct net_bridge_port_group *p;
 
 		if (mp->host_joined) {
 			err = br_mdb_queue_one(&mdb_list,
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 3dafb6143cff..1d80f34a139c 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -639,9 +639,9 @@ int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time)
 	return 0;
 }
 
-clock_t br_get_ageing_time(struct net_device *br_dev)
+clock_t br_get_ageing_time(const struct net_device *br_dev)
 {
-	struct net_bridge *br;
+	const struct net_bridge *br;
 
 	if (!netif_is_bridge_master(br_dev))
 		return 0;
-- 
2.25.1