Merge branch '5.15-2.2.x-imx' into toradex_5.15-2.2.x-imxtoradex_5.15-2.2.x-imx

Conflicts:
	drivers/tty/serial/fsl_lpuart.c

Signed-off-by: Hiago De Franco <hiago.franco@toradex.com>

11 files changed, 80 insertions, 8 deletions

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 355835639ae5..b08b559f5242 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -314,6 +314,7 @@ int  bt_sock_register(int proto, const struct net_proto_family *ops);
 void bt_sock_unregister(int proto);
 void bt_sock_link(struct bt_sock_list *l, struct sock *s);
 void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
+bool bt_sock_linked(struct bt_sock_list *l, struct sock *s);
 int  bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 		     int flags);
 int  bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg,
@@ -487,6 +488,15 @@ static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk,
 	return skb;
 }
 
+static inline int bt_copy_from_sockptr(void *dst, size_t dst_size,
+				       sockptr_t src, size_t src_size)
+{
+	if (dst_size > src_size)
+		return -EINVAL;
+
+	return copy_from_sockptr(dst, src, dst_size);
+}
+
 int bt_to_errno(u16 code);
 
 void hci_sock_set_flag(struct sock *sk, int nr);
diff --git a/include/net/dst.h b/include/net/dst.h
index 827f99d57733..bf0a9b0cc269 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -433,6 +433,15 @@ static inline void dst_set_expires(struct dst_entry *dst, int timeout)
 		dst->expires = expires;
 }
 
+static inline unsigned int dst_dev_overhead(struct dst_entry *dst,
+					    struct sk_buff *skb)
+{
+	if (likely(dst))
+		return LL_RESERVED_SPACE(dst->dev);
+
+	return skb->mac_len;
+}
+
 INDIRECT_CALLABLE_DECLARE(int ip6_output(struct net *, struct sock *,
 					 struct sk_buff *));
 INDIRECT_CALLABLE_DECLARE(int ip_output(struct net *, struct sock *,
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index c8d1c5e187e4..8d0d0cf93a78 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -179,6 +179,22 @@ struct flow_dissector_key_ports {
 };
 
 /**
+ * struct flow_dissector_key_ports_range
+ * @tp: port number from packet
+ * @tp_min: min port number in range
+ * @tp_max: max port number in range
+ */
+struct flow_dissector_key_ports_range {
+	union {
+		struct flow_dissector_key_ports tp;
+		struct {
+			struct flow_dissector_key_ports tp_min;
+			struct flow_dissector_key_ports tp_max;
+		};
+	};
+};
+
+/**
  * flow_dissector_key_icmp:
  *		type: ICMP type
  *		code: ICMP code
diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
index 28c44f7a9f5b..03aa9a2c1845 100644
--- a/include/net/flow_offload.h
+++ b/include/net/flow_offload.h
@@ -48,6 +48,10 @@ struct flow_match_ports {
 	struct flow_dissector_key_ports *key, *mask;
 };
 
+struct flow_match_ports_range {
+	struct flow_dissector_key_ports_range *key, *mask;
+};
+
 struct flow_match_icmp {
 	struct flow_dissector_key_icmp *key, *mask;
 };
@@ -94,6 +98,8 @@ void flow_rule_match_ip(const struct flow_rule *rule,
 			struct flow_match_ip *out);
 void flow_rule_match_ports(const struct flow_rule *rule,
 			   struct flow_match_ports *out);
+void flow_rule_match_ports_range(const struct flow_rule *rule,
+				 struct flow_match_ports_range *out);
 void flow_rule_match_tcp(const struct flow_rule *rule,
 			 struct flow_match_tcp *out);
 void flow_rule_match_icmp(const struct flow_rule *rule,
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 6b3309e55dcb..608943944ce1 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -1000,7 +1000,7 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
 int ip6_append_data(struct sock *sk,
 		    int getfrag(void *from, char *to, int offset, int len,
 				int odd, struct sk_buff *skb),
-		    void *from, int length, int transhdrlen,
+		    void *from, size_t length, int transhdrlen,
 		    struct ipcm6_cookie *ipc6, struct flowi6 *fl6,
 		    struct rt6_info *rt, unsigned int flags);
 
@@ -1016,7 +1016,7 @@ struct sk_buff *__ip6_make_skb(struct sock *sk, struct sk_buff_head *queue,
 struct sk_buff *ip6_make_skb(struct sock *sk,
 			     int getfrag(void *from, char *to, int offset,
 					 int len, int odd, struct sk_buff *skb),
-			     void *from, int length, int transhdrlen,
+			     void *from, size_t length, int transhdrlen,
 			     struct ipcm6_cookie *ipc6, struct flowi6 *fl6,
 			     struct rt6_info *rt, unsigned int flags,
 			     struct inet_cork_full *cork);
diff --git a/include/net/l3mdev.h b/include/net/l3mdev.h
index 031c661aa14d..bdfa9d414360 100644
--- a/include/net/l3mdev.h
+++ b/include/net/l3mdev.h
@@ -198,10 +198,12 @@ struct sk_buff *l3mdev_l3_out(struct sock *sk, struct sk_buff *skb, u16 proto)
 	if (netif_is_l3_slave(dev)) {
 		struct net_device *master;
 
+		rcu_read_lock();
 		master = netdev_master_upper_dev_get_rcu(dev);
 		if (master && master->l3mdev_ops->l3mdev_l3_out)
 			skb = master->l3mdev_ops->l3mdev_l3_out(master, sk,
 								skb, proto);
+		rcu_read_unlock();
 	}
 
 	return skb;
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index d184b832166b..c3cc3a465955 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -80,6 +80,7 @@ struct net {
 						 * or to unregister pernet ops
 						 * (pernet_ops_rwsem write locked).
 						 */
+	struct llist_node	defer_free_list;
 	struct llist_node	cleanup_list;	/* namespaces on death row */
 
 #ifdef CONFIG_KEYS
@@ -316,21 +317,30 @@ static inline int check_net(const struct net *net)
 
 typedef struct {
 #ifdef CONFIG_NET_NS
-	struct net *net;
+	struct net __rcu *net;
 #endif
 } possible_net_t;
 
 static inline void write_pnet(possible_net_t *pnet, struct net *net)
 {
 #ifdef CONFIG_NET_NS
-	pnet->net = net;
+	rcu_assign_pointer(pnet->net, net);
 #endif
 }
 
 static inline struct net *read_pnet(const possible_net_t *pnet)
 {
 #ifdef CONFIG_NET_NS
-	return pnet->net;
+	return rcu_dereference_protected(pnet->net, true);
+#else
+	return &init_net;
+#endif
+}
+
+static inline struct net *read_pnet_rcu(const possible_net_t *pnet)
+{
+#ifdef CONFIG_NET_NS
+	return rcu_dereference(pnet->net);
 #else
 	return &init_net;
 #endif
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index d60a10cfc382..8bc0d865338e 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -84,6 +84,9 @@ struct netns_ipv4 {
 	int sysctl_icmp_ratelimit;
 	int sysctl_icmp_ratemask;
 
+	u32 ip_rt_min_pmtu;
+	int ip_rt_mtu_expires;
+
 	struct local_ports ip_local_ports;
 
 	u8 sysctl_tcp_ecn;
diff --git a/include/net/route.h b/include/net/route.h
index 30610101ea14..036e3ee3b856 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -357,10 +357,15 @@ static inline int inet_iif(const struct sk_buff *skb)
 static inline int ip4_dst_hoplimit(const struct dst_entry *dst)
 {
 	int hoplimit = dst_metric_raw(dst, RTAX_HOPLIMIT);
-	struct net *net = dev_net(dst->dev);
 
-	if (hoplimit == 0)
+	if (hoplimit == 0) {
+		const struct net *net;
+
+		rcu_read_lock();
+		net = dev_net_rcu(dst->dev);
 		hoplimit = READ_ONCE(net->ipv4.sysctl_ip_default_ttl);
+		rcu_read_unlock();
+	}
 	return hoplimit;
 }
 
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 821b20a0f882..b73eadf644b3 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -777,6 +777,7 @@ struct sctp_transport {
 
 	/* Reference counting. */
 	refcount_t refcnt;
+	__u32	dead:1,
 		/* RTO-Pending : A flag used to track if one of the DATA
 		 *		chunks sent to this address is currently being
 		 *		used to compute a RTT. If this flag is 0,
@@ -786,7 +787,7 @@ struct sctp_transport {
 		 *		calculation completes (i.e. the DATA chunk
 		 *		is SACK'd) clear this flag.
 		 */
-	__u32	rto_pending:1,
+		rto_pending:1,
 
 		/*
 		 * hb_sent : a flag that signals that we have a pending
diff --git a/include/net/sock.h b/include/net/sock.h
index ca3cc2b325d7..0461890f10ae 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1472,6 +1472,12 @@ static inline void sock_prot_inuse_add(const struct net *net,
 {
 	this_cpu_add(net->core.prot_inuse->val[prot->inuse_idx], val);
 }
+
+static inline void sock_inuse_add(const struct net *net, int val)
+{
+	this_cpu_add(*net->core.sock_inuse, val);
+}
+
 int sock_prot_inuse_get(struct net *net, struct proto *proto);
 int sock_inuse_get(struct net *net);
 #else
@@ -1479,6 +1485,10 @@ static inline void sock_prot_inuse_add(const struct net *net,
 				       const struct proto *prot, int val)
 {
 }
+
+static inline void sock_inuse_add(const struct net *net, int val)
+{
+}
 #endif