Commit 921f9a0f authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller

tcp: convert tcp_md5_needed to static_branch API

We prefer static_branch_unlikely() over static_key_false() these days.
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a43e052b
......@@ -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);
}
......
......@@ -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);
......
......@@ -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. */
......
......@@ -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) {
......
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