diff options
| author | Eric Dumazet <edumazet@google.com> | 2019-02-26 20:49:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-27 00:16:03 +0300 |
| commit | 921f9a0f2e8c326bfcdde7a59be0bac801a3d588 (patch) | |
| tree | 590ede430a2a25ca46c5e171b4f74a6c203fbc6f | |
| parent | a43e052beacb2c0cecd0e807590b70fc4ff99dba (diff) | |
| download | linux-921f9a0f2e8c326bfcdde7a59be0bac801a3d588.tar.xz | |
tcp: convert tcp_md5_needed to static_branch API
We prefer static_branch_unlikely() over static_key_false() these days.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/tcp.h | 4 | ||||
| -rw-r--r-- | net/ipv4/tcp.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_output.c | 4 |
4 files changed, 6 insertions, 6 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index d66ac76a33d1..68ee02523b87 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1558,7 +1558,7 @@ struct tcp_md5sig_key *tcp_v4_md5_lookup(const struct sock *sk, #ifdef CONFIG_TCP_MD5SIG #include <linux/jump_label.h> -extern struct static_key tcp_md5_needed; +extern struct static_key_false tcp_md5_needed; struct tcp_md5sig_key *__tcp_md5_do_lookup(const struct sock *sk, const union tcp_md5_addr *addr, int family); @@ -1567,7 +1567,7 @@ tcp_md5_do_lookup(const struct sock *sk, const union tcp_md5_addr *addr, int family) { - if (!static_key_false(&tcp_md5_needed)) + if (!static_branch_unlikely(&tcp_md5_needed)) return NULL; return __tcp_md5_do_lookup(sk, addr, family); } diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index e2fa6eb9f81a..ad07dd71063d 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3699,7 +3699,7 @@ bool tcp_alloc_md5sig_pool(void) if (!tcp_md5sig_pool_populated) { __tcp_alloc_md5sig_pool(); if (tcp_md5sig_pool_populated) - static_key_slow_inc(&tcp_md5_needed); + static_branch_inc(&tcp_md5_needed); } mutex_unlock(&tcp_md5sig_mutex); diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 4010ae3644f3..831d844a27ca 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -973,7 +973,7 @@ static void tcp_v4_reqsk_destructor(struct request_sock *req) * We need to maintain these in the sk structure. */ -struct static_key tcp_md5_needed __read_mostly; +DEFINE_STATIC_KEY_FALSE(tcp_md5_needed); EXPORT_SYMBOL(tcp_md5_needed); /* Find the Key structure for an address. */ diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index e72aa0ff5785..91f5cc5a3f88 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -597,7 +597,7 @@ static unsigned int tcp_syn_options(struct sock *sk, struct sk_buff *skb, *md5 = NULL; #ifdef CONFIG_TCP_MD5SIG - if (static_key_false(&tcp_md5_needed) && + if (static_branch_unlikely(&tcp_md5_needed) && rcu_access_pointer(tp->md5sig_info)) { *md5 = tp->af_specific->md5_lookup(sk, sk); if (*md5) { @@ -734,7 +734,7 @@ static unsigned int tcp_established_options(struct sock *sk, struct sk_buff *skb *md5 = NULL; #ifdef CONFIG_TCP_MD5SIG - if (static_key_false(&tcp_md5_needed) && + if (static_branch_unlikely(&tcp_md5_needed) && rcu_access_pointer(tp->md5sig_info)) { *md5 = tp->af_specific->md5_lookup(sk, sk); if (*md5) { |