From: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>
commit b5fc29233d28be7a3322848ebe73ac327559cdb9 upstream.
After commit d38afeec26ed ("tcp/udp: Call inet6_destroy_sock()
in IPv6 sk->sk_destruct()."), we call inet6_destroy_sock() in
sk->sk_destruct() by setting inet6_sock_destruct() to it to make
sure we do not leak inet6-specific resources.
Now we can remove unnecessary inet6_destroy_sock() calls in
sk->sk_prot->destroy().
DCCP and SCTP have their own sk->sk_destruct() function, so we
change them separately in the following patches.
Signed-off-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>
Reviewed-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Ziyang Xuan <william.xuanziyang@xxxxxxxxxx>
---
net/ipv6/ping.c | 6 ------
net/ipv6/raw.c | 2 --
net/ipv6/tcp_ipv6.c | 8 +-------
net/ipv6/udp.c | 2 --
net/l2tp/l2tp_ip6.c | 2 --
5 files changed, 1 insertion(+), 19 deletions(-)
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 23ae01715e7b..5c9be8594483 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -27,11 +27,6 @@
#include <linux/proc_fs.h>
#include <net/ping.h>
-static void ping_v6_destroy(struct sock *sk)
-{
- inet6_destroy_sock(sk);
-}
-
/* Compatibility glue so we can support IPv6 when it's compiled as a module */
static int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len,
int *addr_len)
@@ -175,7 +170,6 @@ struct proto pingv6_prot = {
.owner = THIS_MODULE,
.init = ping_init_sock,
.close = ping_close,
- .destroy = ping_v6_destroy,
.connect = ip6_datagram_connect_v6_only,
.disconnect = __udp_disconnect,
.setsockopt = ipv6_setsockopt,
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 44e9a240d607..8ed99732e24c 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1259,8 +1259,6 @@ static void raw6_destroy(struct sock *sk)
lock_sock(sk);
ip6_flush_pending_frames(sk);
release_sock(sk);
-
- inet6_destroy_sock(sk);
}
static int rawv6_init_sk(struct sock *sk)
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index f69c1b83403b..033cf81f3483 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1792,12 +1792,6 @@ static int tcp_v6_init_sock(struct sock *sk)
return 0;
}
-static void tcp_v6_destroy_sock(struct sock *sk)
-{
- tcp_v4_destroy_sock(sk);
- inet6_destroy_sock(sk);
-}
-
#ifdef CONFIG_PROC_FS
/* Proc filesystem TCPv6 sock list dumping. */
static void get_openreq6(struct seq_file *seq,
@@ -1990,7 +1984,7 @@ struct proto tcpv6_prot = {
.accept = inet_csk_accept,
.ioctl = tcp_ioctl,
.init = tcp_v6_init_sock,
- .destroy = tcp_v6_destroy_sock,
+ .destroy = tcp_v4_destroy_sock,
.shutdown = tcp_shutdown,
.setsockopt = tcp_setsockopt,
.getsockopt = tcp_getsockopt,
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 93c105d0a0c9..c9522a4fc949 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1501,8 +1501,6 @@ void udpv6_destroy_sock(struct sock *sk)
if (encap_destroy)
encap_destroy(sk);
}
-
- inet6_destroy_sock(sk);
}
/*
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 9dae10d8880c..f3f0b4b7c386 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -272,8 +272,6 @@ static void l2tp_ip6_destroy_sock(struct sock *sk)
if (tunnel)
l2tp_tunnel_delete(tunnel);
-
- inet6_destroy_sock(sk);
}
static int l2tp_ip6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
--
2.25.1
