tipc: replace open-code bearer rcu_dereference access in bearer.c
Replace these open-code bearer rcu_dereference access with bearer_get(), like other places in bearer.c. While at it, also use tipc_net() instead of net_generic(net, tipc_net_id) to get "tn" in bearer.c. Signed-off-by: Xin Long <lucien.xin@gmail.com> Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com> Reviewed-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Link: https://lore.kernel.org/r/1072588a8691f970bda950c7e2834d1f2983f58e.1685976044.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -176,7 +176,7 @@ static int bearer_name_validate(const char *name,
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*/
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struct tipc_bearer *tipc_bearer_find(struct net *net, const char *name)
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{
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struct tipc_net *tn = net_generic(net, tipc_net_id);
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struct tipc_net *tn = tipc_net(net);
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struct tipc_bearer *b;
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u32 i;
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@ -211,11 +211,10 @@ int tipc_bearer_get_name(struct net *net, char *name, u32 bearer_id)
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void tipc_bearer_add_dest(struct net *net, u32 bearer_id, u32 dest)
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{
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struct tipc_net *tn = net_generic(net, tipc_net_id);
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struct tipc_bearer *b;
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rcu_read_lock();
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b = rcu_dereference(tn->bearer_list[bearer_id]);
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b = bearer_get(net, bearer_id);
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if (b)
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tipc_disc_add_dest(b->disc);
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rcu_read_unlock();
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@ -223,11 +222,10 @@ void tipc_bearer_add_dest(struct net *net, u32 bearer_id, u32 dest)
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void tipc_bearer_remove_dest(struct net *net, u32 bearer_id, u32 dest)
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{
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struct tipc_net *tn = net_generic(net, tipc_net_id);
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struct tipc_bearer *b;
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rcu_read_lock();
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b = rcu_dereference(tn->bearer_list[bearer_id]);
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b = bearer_get(net, bearer_id);
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if (b)
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tipc_disc_remove_dest(b->disc);
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rcu_read_unlock();
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@ -534,7 +532,7 @@ int tipc_bearer_mtu(struct net *net, u32 bearer_id)
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struct tipc_bearer *b;
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rcu_read_lock();
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b = rcu_dereference(tipc_net(net)->bearer_list[bearer_id]);
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b = bearer_get(net, bearer_id);
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if (b)
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mtu = b->mtu;
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rcu_read_unlock();
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@ -745,7 +743,7 @@ void tipc_bearer_cleanup(void)
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void tipc_bearer_stop(struct net *net)
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{
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struct tipc_net *tn = net_generic(net, tipc_net_id);
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struct tipc_net *tn = tipc_net(net);
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struct tipc_bearer *b;
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u32 i;
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@ -881,7 +879,7 @@ int tipc_nl_bearer_dump(struct sk_buff *skb, struct netlink_callback *cb)
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struct tipc_bearer *bearer;
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struct tipc_nl_msg msg;
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struct net *net = sock_net(skb->sk);
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struct tipc_net *tn = net_generic(net, tipc_net_id);
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struct tipc_net *tn = tipc_net(net);
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if (i == MAX_BEARERS)
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return 0;
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