Merge branch 'x86/entry' into ras/core

to fixup conflicts in arch/x86/kernel/cpu/mce/core.c so MCE specific follow
up patches can be applied without creating a horrible merge conflict
afterwards.

1 files changed, 45 insertions, 6 deletions

diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 67448002a2d7..809687d3f410 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -81,7 +81,6 @@
 
 /* MPTCP ADD_ADDR flags */
 #define MPTCP_ADDR_ECHO		BIT(0)
-#define MPTCP_ADDR_HMAC_LEN	20
 #define MPTCP_ADDR_IPVERSION_4	4
 #define MPTCP_ADDR_IPVERSION_6	6
 
@@ -91,6 +90,45 @@
 #define MPTCP_WORK_RTX		2
 #define MPTCP_WORK_EOF		3
 
+struct mptcp_options_received {
+	u64	sndr_key;
+	u64	rcvr_key;
+	u64	data_ack;
+	u64	data_seq;
+	u32	subflow_seq;
+	u16	data_len;
+	u16	mp_capable : 1,
+		mp_join : 1,
+		dss : 1,
+		add_addr : 1,
+		rm_addr : 1,
+		family : 4,
+		echo : 1,
+		backup : 1;
+	u32	token;
+	u32	nonce;
+	u64	thmac;
+	u8	hmac[20];
+	u8	join_id;
+	u8	use_map:1,
+		dsn64:1,
+		data_fin:1,
+		use_ack:1,
+		ack64:1,
+		mpc_map:1,
+		__unused:2;
+	u8	addr_id;
+	u8	rm_id;
+	union {
+		struct in_addr	addr;
+#if IS_ENABLED(CONFIG_MPTCP_IPV6)
+		struct in6_addr	addr6;
+#endif
+	};
+	u64	ahmac;
+	u16	port;
+};
+
 static inline __be32 mptcp_option(u8 subopt, u8 len, u8 nib, u8 field)
 {
 	return htonl((TCPOPT_MPTCP << 24) | (len << 16) | (subopt << 12) |
@@ -206,12 +244,10 @@ struct mptcp_subflow_request_sock {
 	struct	tcp_request_sock sk;
 	u16	mp_capable : 1,
 		mp_join : 1,
-		backup : 1,
-		remote_key_valid : 1;
+		backup : 1;
 	u8	local_id;
 	u8	remote_id;
 	u64	local_key;
-	u64	remote_key;
 	u64	idsn;
 	u32	token;
 	u32	ssn_offset;
@@ -253,6 +289,7 @@ struct mptcp_subflow_context {
 		data_avail : 1,
 		rx_eof : 1,
 		data_fin_tx_enable : 1,
+		use_64bit_ack : 1, /* Set when we received a 64-bit DSN */
 		can_ack : 1;	    /* only after processing the remote a key */
 	u64	data_fin_tx_seq;
 	u32	remote_nonce;
@@ -332,9 +369,11 @@ void mptcp_proto_init(void);
 int mptcp_proto_v6_init(void);
 #endif
 
-struct sock *mptcp_sk_clone(const struct sock *sk, struct request_sock *req);
+struct sock *mptcp_sk_clone(const struct sock *sk,
+			    const struct mptcp_options_received *mp_opt,
+			    struct request_sock *req);
 void mptcp_get_options(const struct sk_buff *skb,
-		       struct tcp_options_received *opt_rx);
+		       struct mptcp_options_received *mp_opt);
 
 void mptcp_finish_connect(struct sock *sk);
 void mptcp_data_ready(struct sock *sk, struct sock *ssk);