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-rw-r--r--include/asm-generic/io.h2
-rw-r--r--include/net/addrconf.h3
-rw-r--r--include/net/bluetooth/l2cap.h1
-rw-r--r--include/net/inet_connection_sock.h10
-rw-r--r--include/net/sock.h8
-rw-r--r--include/net/tcp.h2
6 files changed, 10 insertions, 16 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 7ce93aaf69f8..98954dda5734 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -1125,9 +1125,7 @@ static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
}
#endif
-#ifndef CONFIG_GENERIC_DEVMEM_IS_ALLOWED
extern int devmem_is_allowed(unsigned long pfn);
-#endif
#endif /* __KERNEL__ */
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 59940e230b78..53627afab104 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -403,6 +403,9 @@ static inline bool ip6_ignore_linkdown(const struct net_device *dev)
{
const struct inet6_dev *idev = __in6_dev_get(dev);
+ if (unlikely(!idev))
+ return true;
+
return !!idev->cnf.ignore_routes_with_linkdown;
}
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 3c4f550e5a8b..2f766e3437ce 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -847,6 +847,7 @@ enum {
};
void l2cap_chan_hold(struct l2cap_chan *c);
+struct l2cap_chan *l2cap_chan_hold_unless_zero(struct l2cap_chan *c);
void l2cap_chan_put(struct l2cap_chan *c);
static inline void l2cap_chan_lock(struct l2cap_chan *chan)
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index fa6a87246a7b..695ed45841f0 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -315,7 +315,7 @@ void inet_csk_update_fastreuse(struct inet_bind_bucket *tb,
struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu);
-#define TCP_PINGPONG_THRESH 3
+#define TCP_PINGPONG_THRESH 1
static inline void inet_csk_enter_pingpong_mode(struct sock *sk)
{
@@ -332,14 +332,6 @@ static inline bool inet_csk_in_pingpong_mode(struct sock *sk)
return inet_csk(sk)->icsk_ack.pingpong >= TCP_PINGPONG_THRESH;
}
-static inline void inet_csk_inc_pingpong_cnt(struct sock *sk)
-{
- struct inet_connection_sock *icsk = inet_csk(sk);
-
- if (icsk->icsk_ack.pingpong < U8_MAX)
- icsk->icsk_ack.pingpong++;
-}
-
static inline bool inet_csk_has_ulp(struct sock *sk)
{
return inet_sk(sk)->is_icsk && !!inet_csk(sk)->icsk_ulp_ops;
diff --git a/include/net/sock.h b/include/net/sock.h
index 96f51d4b1649..819c53965ef3 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2765,18 +2765,18 @@ static inline int sk_get_wmem0(const struct sock *sk, const struct proto *proto)
{
/* Does this proto have per netns sysctl_wmem ? */
if (proto->sysctl_wmem_offset)
- return *(int *)((void *)sock_net(sk) + proto->sysctl_wmem_offset);
+ return READ_ONCE(*(int *)((void *)sock_net(sk) + proto->sysctl_wmem_offset));
- return *proto->sysctl_wmem;
+ return READ_ONCE(*proto->sysctl_wmem);
}
static inline int sk_get_rmem0(const struct sock *sk, const struct proto *proto)
{
/* Does this proto have per netns sysctl_rmem ? */
if (proto->sysctl_rmem_offset)
- return *(int *)((void *)sock_net(sk) + proto->sysctl_rmem_offset);
+ return READ_ONCE(*(int *)((void *)sock_net(sk) + proto->sysctl_rmem_offset));
- return *proto->sysctl_rmem;
+ return READ_ONCE(*proto->sysctl_rmem);
}
/* Default TCP Small queue budget is ~1 ms of data (1sec >> 10)
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 8ce8aafeef0f..76b0d7f2b967 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1406,7 +1406,7 @@ void tcp_select_initial_window(const struct sock *sk, int __space,
static inline int tcp_win_from_space(const struct sock *sk, int space)
{
- int tcp_adv_win_scale = sock_net(sk)->ipv4.sysctl_tcp_adv_win_scale;
+ int tcp_adv_win_scale = READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_adv_win_scale);
return tcp_adv_win_scale <= 0 ?
(space>>(-tcp_adv_win_scale)) :