l2tp: remove unused stats from l2tp_ip socket
The l2tp_ip socket currently maintains packet/byte stats in its
private socket structure. But these counters aren't exposed to
userspace and so serve no purpose. The counters were also
smp-unsafe. So this patch just gets rid of the stats.
While here, change a couple of internal __u32 variables to u32.
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 5162592..adefe52 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -32,15 +32,8 @@
/* inet_sock has to be the first member of l2tp_ip_sock */
struct inet_sock inet;
- __u32 conn_id;
- __u32 peer_conn_id;
-
- __u64 tx_packets;
- __u64 tx_bytes;
- __u64 tx_errors;
- __u64 rx_packets;
- __u64 rx_bytes;
- __u64 rx_errors;
+ u32 conn_id;
+ u32 peer_conn_id;
};
static DEFINE_RWLOCK(l2tp_ip_lock);
@@ -298,7 +291,6 @@
static int l2tp_ip_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
struct sockaddr_l2tpip *lsa = (struct sockaddr_l2tpip *) uaddr;
- struct inet_sock *inet = inet_sk(sk);
int rc;
if (addr_len < sizeof(*lsa))
@@ -374,7 +366,6 @@
{
struct sk_buff *skb;
int rc;
- struct l2tp_ip_sock *lsa = l2tp_ip_sk(sk);
struct inet_sock *inet = inet_sk(sk);
struct rtable *rt = NULL;
struct flowi4 *fl4;
@@ -473,14 +464,8 @@
rcu_read_unlock();
error:
- /* Update stats */
- if (rc >= 0) {
- lsa->tx_packets++;
- lsa->tx_bytes += len;
+ if (rc >= 0)
rc = len;
- } else {
- lsa->tx_errors++;
- }
out:
release_sock(sk);
@@ -498,7 +483,6 @@
size_t len, int noblock, int flags, int *addr_len)
{
struct inet_sock *inet = inet_sk(sk);
- struct l2tp_ip_sock *lsk = l2tp_ip_sk(sk);
size_t copied = 0;
int err = -EOPNOTSUPP;
struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
@@ -540,15 +524,7 @@
done:
skb_free_datagram(sk, skb);
out:
- if (err) {
- lsk->rx_errors++;
- return err;
- }
-
- lsk->rx_packets++;
- lsk->rx_bytes += copied;
-
- return copied;
+ return err ? err : copied;
}
static struct proto l2tp_ip_prot = {
