diff options
author | Geliang Tang <geliang.tang@suse.com> | 2022-04-08 12:45:57 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2022-04-11 11:55:53 +0100 |
commit | c682bf536cf4fd8bb5395f9b7147233087107793 (patch) | |
tree | 6466f658c3c8edbb7bb81dde267a82d76f6d4f65 /net | |
parent | 0e203c324752e13d22624ab7ffafe934fa06ab50 (diff) | |
download | linux-c682bf536cf4fd8bb5395f9b7147233087107793.tar.bz2 |
mptcp: add pm_nl_pernet helpers
This patch adds two pm_nl_pernet related helpers, named pm_nl_get_pernet()
and pm_nl_get_pernet_from_msk() to get pm_nl_pernet from 'net' or 'msk'.
Use these helpers instead of using net_generic() directly.
Suggested-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r-- | net/mptcp/pm_netlink.c | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index e3dcc5501579..c20261b612e9 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -55,6 +55,17 @@ struct pm_nl_pernet { #define MPTCP_PM_ADDR_MAX 8 #define ADD_ADDR_RETRANS_MAX 3 +static struct pm_nl_pernet *pm_nl_get_pernet(const struct net *net) +{ + return net_generic(net, pm_nl_pernet_id); +} + +static struct pm_nl_pernet * +pm_nl_get_pernet_from_msk(const struct mptcp_sock *msk) +{ + return pm_nl_get_pernet(sock_net((struct sock *)msk)); +} + static bool addresses_equal(const struct mptcp_addr_info *a, const struct mptcp_addr_info *b, bool use_port) { @@ -206,43 +217,39 @@ select_signal_address(struct pm_nl_pernet *pernet, const struct mptcp_sock *msk) unsigned int mptcp_pm_get_add_addr_signal_max(const struct mptcp_sock *msk) { - const struct pm_nl_pernet *pernet; + const struct pm_nl_pernet *pernet = pm_nl_get_pernet_from_msk(msk); - pernet = net_generic(sock_net((const struct sock *)msk), pm_nl_pernet_id); return READ_ONCE(pernet->add_addr_signal_max); } EXPORT_SYMBOL_GPL(mptcp_pm_get_add_addr_signal_max); unsigned int mptcp_pm_get_add_addr_accept_max(const struct mptcp_sock *msk) { - struct pm_nl_pernet *pernet; + struct pm_nl_pernet *pernet = pm_nl_get_pernet_from_msk(msk); - pernet = net_generic(sock_net((struct sock *)msk), pm_nl_pernet_id); return READ_ONCE(pernet->add_addr_accept_max); } EXPORT_SYMBOL_GPL(mptcp_pm_get_add_addr_accept_max); unsigned int mptcp_pm_get_subflows_max(const struct mptcp_sock *msk) { - struct pm_nl_pernet *pernet; + struct pm_nl_pernet *pernet = pm_nl_get_pernet_from_msk(msk); - pernet = net_generic(sock_net((struct sock *)msk), pm_nl_pernet_id); return READ_ONCE(pernet->subflows_max); } EXPORT_SYMBOL_GPL(mptcp_pm_get_subflows_max); unsigned int mptcp_pm_get_local_addr_max(const struct mptcp_sock *msk) { - struct pm_nl_pernet *pernet; + struct pm_nl_pernet *pernet = pm_nl_get_pernet_from_msk(msk); - pernet = net_generic(sock_net((struct sock *)msk), pm_nl_pernet_id); return READ_ONCE(pernet->local_addr_max); } EXPORT_SYMBOL_GPL(mptcp_pm_get_local_addr_max); bool mptcp_pm_nl_check_work_pending(struct mptcp_sock *msk) { - struct pm_nl_pernet *pernet = net_generic(sock_net((struct sock *)msk), pm_nl_pernet_id); + struct pm_nl_pernet *pernet = pm_nl_get_pernet_from_msk(msk); if (msk->pm.subflows == mptcp_pm_get_subflows_max(msk) || (find_next_and_bit(pernet->id_bitmap, msk->pm.id_avail_bitmap, @@ -508,7 +515,7 @@ static void mptcp_pm_create_subflow_or_signal_addr(struct mptcp_sock *msk) struct pm_nl_pernet *pernet; unsigned int subflows_max; - pernet = net_generic(sock_net(sk), pm_nl_pernet_id); + pernet = pm_nl_get_pernet(sock_net(sk)); add_addr_signal_max = mptcp_pm_get_add_addr_signal_max(msk); local_addr_max = mptcp_pm_get_local_addr_max(msk); @@ -604,7 +611,7 @@ static unsigned int fill_local_addresses_vec(struct mptcp_sock *msk, unsigned int subflows_max; int i = 0; - pernet = net_generic(sock_net(sk), pm_nl_pernet_id); + pernet = pm_nl_get_pernet_from_msk(msk); subflows_max = mptcp_pm_get_subflows_max(msk); rcu_read_lock(); @@ -1023,7 +1030,7 @@ int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct sock_common *skc) if (addresses_equal(&msk_local, &skc_local, false)) return 0; - pernet = net_generic(sock_net((struct sock *)msk), pm_nl_pernet_id); + pernet = pm_nl_get_pernet_from_msk(msk); rcu_read_lock(); list_for_each_entry_rcu(entry, &pernet->local_addr_list, list) { @@ -1214,7 +1221,7 @@ skip_family: static struct pm_nl_pernet *genl_info_pm_nl(struct genl_info *info) { - return net_generic(genl_info_net(info), pm_nl_pernet_id); + return pm_nl_get_pernet(genl_info_net(info)); } static int mptcp_nl_add_subflow_or_signal_addr(struct net *net) @@ -1308,7 +1315,7 @@ int mptcp_pm_get_flags_and_ifindex_by_id(struct net *net, unsigned int id, if (id) { rcu_read_lock(); - entry = __lookup_addr_by_id(net_generic(net, pm_nl_pernet_id), id); + entry = __lookup_addr_by_id(pm_nl_get_pernet(net), id); if (entry) { *flags = entry->flags; *ifindex = entry->ifindex; @@ -1655,7 +1662,7 @@ static int mptcp_nl_cmd_dump_addrs(struct sk_buff *msg, void *hdr; int i; - pernet = net_generic(net, pm_nl_pernet_id); + pernet = pm_nl_get_pernet(net); spin_lock_bh(&pernet->lock); for (i = id; i < MPTCP_PM_MAX_ADDR_ID + 1; i++) { @@ -2167,7 +2174,7 @@ static struct genl_family mptcp_genl_family __ro_after_init = { static int __net_init pm_nl_init_net(struct net *net) { - struct pm_nl_pernet *pernet = net_generic(net, pm_nl_pernet_id); + struct pm_nl_pernet *pernet = pm_nl_get_pernet(net); INIT_LIST_HEAD_RCU(&pernet->local_addr_list); @@ -2189,7 +2196,7 @@ static void __net_exit pm_nl_exit_net(struct list_head *net_list) struct net *net; list_for_each_entry(net, net_list, exit_list) { - struct pm_nl_pernet *pernet = net_generic(net, pm_nl_pernet_id); + struct pm_nl_pernet *pernet = pm_nl_get_pernet(net); /* net is removed from namespace list, can't race with * other modifiers, also netns core already waited for a |