From: Arnaldo Carvalho de Melo <acme@mandriva.com>
Date: Wed, 14 Dec 2005 07:15:01 +0000 (-0800)
Subject: [IPV6]: Generalise __tcp_v6_hash, renaming it to __inet6_hash
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=90b19d31695371bd3ed256d4c9e280861cd6ae7e;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[IPV6]: Generalise __tcp_v6_hash, renaming it to __inet6_hash

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index 5a2beed5a770..a4a204f99ea6 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -48,6 +48,32 @@ static inline int inet6_sk_ehashfn(const struct sock *sk)
 	return inet6_ehashfn(laddr, lport, faddr, fport);
 }
 
+static inline void __inet6_hash(struct inet_hashinfo *hashinfo,
+				struct sock *sk)
+{
+	struct hlist_head *list;
+	rwlock_t *lock;
+
+	BUG_TRAP(sk_unhashed(sk));
+
+	if (sk->sk_state == TCP_LISTEN) {
+		list = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
+		lock = &hashinfo->lhash_lock;
+		inet_listen_wlock(hashinfo);
+	} else {
+		unsigned int hash;
+		sk->sk_hash = hash = inet6_sk_ehashfn(sk);
+		hash &= (hashinfo->ehash_size - 1);
+		list = &hashinfo->ehash[hash].chain;
+		lock = &hashinfo->ehash[hash].lock;
+		write_lock(lock);
+	}
+
+	__sk_add_node(sk, list);
+	sock_prot_inc_use(sk->sk_prot);
+	write_unlock(lock);
+}
+
 /*
  * Sockets in TCP_CLOSE state are _always_ taken out of the hash, so
  * we need not check it for TCP lookups anymore, thanks Alexey. -DaveM
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 76c8f5a2f7f3..bf41f84d6692 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -103,32 +103,6 @@ static int tcp_v6_get_port(struct sock *sk, unsigned short snum)
 				 inet6_csk_bind_conflict);
 }
 
-static __inline__ void __tcp_v6_hash(struct sock *sk)
-{
-	struct hlist_head *list;
-	rwlock_t *lock;
-
-	BUG_TRAP(sk_unhashed(sk));
-
-	if (sk->sk_state == TCP_LISTEN) {
-		list = &tcp_hashinfo.listening_hash[inet_sk_listen_hashfn(sk)];
-		lock = &tcp_hashinfo.lhash_lock;
-		inet_listen_wlock(&tcp_hashinfo);
-	} else {
-		unsigned int hash;
-		sk->sk_hash = hash = inet6_sk_ehashfn(sk);
-		hash &= (tcp_hashinfo.ehash_size - 1);
-		list = &tcp_hashinfo.ehash[hash].chain;
-		lock = &tcp_hashinfo.ehash[hash].lock;
-		write_lock(lock);
-	}
-
-	__sk_add_node(sk, list);
-	sock_prot_inc_use(sk->sk_prot);
-	write_unlock(lock);
-}
-
-
 static void tcp_v6_hash(struct sock *sk)
 {
 	if (sk->sk_state != TCP_CLOSE) {
@@ -139,7 +113,7 @@ static void tcp_v6_hash(struct sock *sk)
 			return;
 		}
 		local_bh_disable();
-		__tcp_v6_hash(sk);
+		__inet6_hash(&tcp_hashinfo, sk);
 		local_bh_enable();
 	}
 }
@@ -374,7 +348,7 @@ ok:
  		inet_bind_hash(sk, tb, port);
 		if (sk_unhashed(sk)) {
  			inet_sk(sk)->sport = htons(port);
- 			__tcp_v6_hash(sk);
+ 			__inet6_hash(&tcp_hashinfo, sk);
  		}
  		spin_unlock(&head->lock);
 
@@ -392,7 +366,7 @@ ok:
 	spin_lock_bh(&head->lock);
 
 	if (sk_head(&tb->owners) == sk && !sk->sk_bind_node.next) {
-		__tcp_v6_hash(sk);
+		__inet6_hash(&tcp_hashinfo, sk);
 		spin_unlock_bh(&head->lock);
 		return 0;
 	} else {
@@ -1295,7 +1269,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 	newinet->daddr = newinet->saddr = newinet->rcv_saddr = LOOPBACK4_IPV6;
 
-	__tcp_v6_hash(newsk);
+	__inet6_hash(&tcp_hashinfo, newsk);
 	inet_inherit_port(&tcp_hashinfo, sk, newsk);
 
 	return newsk;