13 files changed, 174 insertions, 28 deletions

diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index f4f9d9609448..a7d9e3ae362a 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -8,7 +8,6 @@
 
 #include <uapi/linux/mdio.h>
 #include <linux/bitfield.h>
-#include <linux/mod_devicetable.h>
 
 struct gpio_desc;
 struct mii_bus;
@@ -87,6 +86,11 @@ static inline void *mdiodev_get_drvdata(struct mdio_device *mdio)
 	return dev_get_drvdata(&mdio->dev);
 }
 
+static inline bool mdiodev_has_reset(struct mdio_device *mdio)
+{
+	return (mdio->reset_gpio || mdio->reset_ctrl);
+}
+
 void mdio_device_free(struct mdio_device *mdiodev);
 struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
 int mdio_device_register(struct mdio_device *mdiodev);
diff --git a/include/linux/net.h b/include/linux/net.h
index fdcf9956805c..3d82966e2243 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -47,6 +47,29 @@ typedef struct sockopt {
 	int optlen;
 } sockopt_t;
 
+/*
+ * Initialize a user-backed sockopt_t from the (optval, optlen) __user pair of
+ * a getsockopt() callback. Used by transitional __user getsockopt wrappers
+ * while the proto-layer callbacks are converted to take a sockopt_t; the
+ * caller writes opt->optlen back to the user optlen after the callback.
+ */
+static inline int sockopt_init_user(sockopt_t *opt, char __user *optval,
+				    int __user *optlen)
+{
+	int len;
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+	if (len < 0)
+		return -EINVAL;
+
+	iov_iter_ubuf(&opt->iter_out, ITER_DEST, optval, len);
+	iov_iter_ubuf(&opt->iter_in, ITER_SOURCE, optval, len);
+	opt->optlen = len;
+
+	return 0;
+}
+
 struct poll_table_struct;
 struct pipe_inode_info;
 struct inode;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9981d637f8b5..8db25b79573e 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1845,6 +1845,8 @@ enum netdev_reg_state {
  *	@napi_list:	List entry used for polling NAPI devices
  *	@unreg_list:	List entry  when we are unregistering the
  *			device; see the function unregister_netdev
+ *	@unreg_list_net:List entry when we are unregistering the cross-netns
+ *			device; see the function unregister_netdevice_queue_net()
  *	@close_list:	List entry used when we are closing the device
  *	@ptype_all:     Device-specific packet handlers for all protocols
  *	@ptype_specific: Device-specific, protocol-specific packet handlers
@@ -2241,6 +2243,9 @@ struct net_device {
 	struct list_head	dev_list;
 	struct list_head	napi_list;
 	struct list_head	unreg_list;
+#ifdef CONFIG_DEBUG_NET_SMALL_RTNL
+	struct list_head	unreg_list_net;
+#endif
 	struct list_head	close_list;
 	struct list_head	ptype_all;
 
@@ -3472,6 +3477,25 @@ static inline void unregister_netdevice(struct net_device *dev)
 	unregister_netdevice_queue(dev, NULL);
 }
 
+#ifdef CONFIG_DEBUG_NET_SMALL_RTNL
+void unregister_netdevice_queue_net(struct net *net, struct net_device *dev,
+				    struct list_head *head);
+void unregister_netdevice_many_net(struct net *net);
+void unregister_netdevice_queue_many_net(struct net *net, struct list_head *head);
+#else
+static inline void unregister_netdevice_queue_net(struct net *net,
+						  struct net_device *dev,
+						  struct list_head *head)
+{
+	unregister_netdevice_queue(dev, head);
+}
+
+static inline void unregister_netdevice_queue_many_net(struct net *net,
+						       struct list_head *head)
+{
+}
+#endif
+
 int netdev_refcnt_read(const struct net_device *dev);
 void free_netdev(struct net_device *dev);
 
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index efbbfa770d66..e99afc1414cd 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -93,6 +93,7 @@ enum nf_hook_ops_type {
 	NF_HOOK_OP_NF_TABLES,
 	NF_HOOK_OP_BPF,
 	NF_HOOK_OP_NFT_FT,
+	NF_HOOK_OP_NAT,
 };
 
 struct nf_hook_ops {
@@ -140,6 +141,12 @@ struct nf_hook_entries {
 	 */
 };
 
+struct nf_nat_lookup_hook_priv {
+	struct nf_hook_entries __rcu *entries;
+
+	struct rcu_head rcu_head;
+};
+
 #ifdef CONFIG_NETFILTER
 static inline struct nf_hook_ops **nf_hook_entries_get_hook_ops(const struct nf_hook_entries *e)
 {
diff --git a/include/linux/netfilter/nf_conntrack_h323.h b/include/linux/netfilter/nf_conntrack_h323.h
index 81286c499325..b15f37604cde 100644
--- a/include/linux/netfilter/nf_conntrack_h323.h
+++ b/include/linux/netfilter/nf_conntrack_h323.h
@@ -9,8 +9,6 @@
 #include <net/netfilter/nf_conntrack_expect.h>
 #include <uapi/linux/netfilter/nf_conntrack_tuple_common.h>
 
-#define RAS_PORT 1719
-#define Q931_PORT 1720
 #define H323_RTP_CHANNEL_MAX 4	/* Audio, video, FAX and other */
 
 /* This structure exists only once per master */
diff --git a/include/linux/netfilter/nf_conntrack_pptp.h b/include/linux/netfilter/nf_conntrack_pptp.h
index c3bdb4370938..c0b305ce7c3c 100644
--- a/include/linux/netfilter/nf_conntrack_pptp.h
+++ b/include/linux/netfilter/nf_conntrack_pptp.h
@@ -50,8 +50,6 @@ struct nf_nat_pptp {
 	__be16 pac_call_id;			/* NAT'ed PAC call id */
 };
 
-#define PPTP_CONTROL_PORT	1723
-
 #define PPTP_PACKET_CONTROL	1
 #define PPTP_PACKET_MGMT	2
 
diff --git a/include/linux/netfilter/nf_conntrack_sane.h b/include/linux/netfilter/nf_conntrack_sane.h
index 46c7acd1b4a7..8501035d7335 100644
--- a/include/linux/netfilter/nf_conntrack_sane.h
+++ b/include/linux/netfilter/nf_conntrack_sane.h
@@ -3,8 +3,6 @@
 #define _NF_CONNTRACK_SANE_H
 /* SANE tracking. */
 
-#define SANE_PORT	6566
-
 enum sane_state {
 	SANE_STATE_NORMAL,
 	SANE_STATE_START_REQUESTED,
diff --git a/include/linux/netfilter/nf_conntrack_tftp.h b/include/linux/netfilter/nf_conntrack_tftp.h
index 90b334bbce3c..e3d1739c557d 100644
--- a/include/linux/netfilter/nf_conntrack_tftp.h
+++ b/include/linux/netfilter/nf_conntrack_tftp.h
@@ -2,8 +2,6 @@
 #ifndef _NF_CONNTRACK_TFTP_H
 #define _NF_CONNTRACK_TFTP_H
 
-#define TFTP_PORT 69
-
 #include <linux/netfilter.h>
 #include <linux/skbuff.h>
 #include <linux/types.h>
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 88f7daa8560e..79315461a7b1 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -21,20 +21,6 @@ union inet_addr {
 	struct in6_addr	in6;
 };
 
-/*
- * Maximum payload netpoll's preallocated skb pool can carry. Keep this in
- * sync with the buffer size used by refill_skbs() in net/core/netpoll.c;
- * callers (e.g. netconsole) use it to detect requests the pool can never
- * satisfy and avoid dequeuing a pooled skb that would later trip
- * skb_over_panic() in skb_put().
- */
-#define MAX_UDP_CHUNK	1460
-#define MAX_SKB_SIZE						\
-	(sizeof(struct ethhdr) +				\
-	 sizeof(struct iphdr) +					\
-	 sizeof(struct udphdr) +				\
-	 MAX_UDP_CHUNK)
-
 struct netpoll {
 	struct net_device *dev;
 	netdevice_tracker dev_tracker;
@@ -49,10 +35,6 @@ struct netpoll {
 
 	union inet_addr local_ip, remote_ip;
 	bool ipv6;
-	u16 local_port, remote_port;
-	u8 remote_mac[ETH_ALEN];
-	struct sk_buff_head skb_pool;
-	struct work_struct refill_wq;
 };
 
 #define np_info(np, fmt, ...)				\
diff --git a/include/linux/oa_tc6.h b/include/linux/oa_tc6.h
index 15f58e3c56c7..27f652d4920b 100644
--- a/include/linux/oa_tc6.h
+++ b/include/linux/oa_tc6.h
@@ -10,15 +10,86 @@
 #include <linux/etherdevice.h>
 #include <linux/spi/spi.h>
 
+/* OPEN Alliance TC6 registers */
+/* Standard Capabilities Register */
+#define OA_TC6_REG_STDCAP			0x0002
+#define OA_TC6_STDCAP_DIRECT_PHY_REG_ACCESS	BIT(8)
+
+/* Reset Control and Status Register */
+#define OA_TC6_REG_RESET			0x0003
+#define OA_TC6_RESET_SWRESET			BIT(0)	/* Software Reset */
+
+/* Configuration Register #0 */
+#define OA_TC6_REG_CONFIG0			0x0004
+#define OA_TC6_CONFIG0_SYNC			BIT(15)
+#define OA_TC6_CONFIG0_ZARFE_ENABLE		BIT(12)
+#define OA_TC6_CONFIG0_PROTE			BIT(5)
+
+/* Configuration Register #2 */
+#define OA_TC6_REG_CONFIG2			0x0006
+
+/* Status Register #0 */
+#define OA_TC6_REG_STATUS0			0x0008
+#define OA_TC6_STATUS0_RESETC			BIT(6)	/* Reset Complete */
+#define OA_TC6_STATUS0_HEADER_ERROR		BIT(5)
+#define OA_TC6_STATUS0_LOSS_OF_FRAME_ERROR	BIT(4)
+#define OA_TC6_STATUS0_RX_BUFFER_OVERFLOW_ERROR	BIT(3)
+#define OA_TC6_STATUS0_TX_PROTOCOL_ERROR	BIT(0)
+
+/* Buffer Status Register */
+#define OA_TC6_REG_BUFFER_STATUS			0x000B
+#define OA_TC6_BUFFER_STATUS_TX_CREDITS_AVAILABLE	GENMASK(15, 8)
+#define OA_TC6_BUFFER_STATUS_RX_CHUNKS_AVAILABLE	GENMASK(7, 0)
+
+/* Interrupt Mask Register #0 */
+#define OA_TC6_REG_INT_MASK0				0x000C
+#define OA_TC6_INT_MASK0_HEADER_ERR_MASK		BIT(5)
+#define OA_TC6_INT_MASK0_LOSS_OF_FRAME_ERR_MASK		BIT(4)
+#define OA_TC6_INT_MASK0_RX_BUFFER_OVERFLOW_ERR_MASK	BIT(3)
+#define OA_TC6_INT_MASK0_TX_PROTOCOL_ERR_MASK		BIT(0)
+#define OA_TC6_INT_MASK0_ALL_INTERRUPTS                 (GENMASK(5, 0) | \
+							 GENMASK(12, 7))
+
+/* PHY Clause 22 registers base address and mask */
+#define OA_TC6_PHY_STD_REG_ADDR_BASE		0xFF00
+#define OA_TC6_PHY_STD_REG_ADDR_MASK		0x1F
+
+/* Memory map selector (MMS) values as per table 6 in the
+ * OPEN Alliance specification.
+ */
+#define OA_TC6_MAC_MMS1				1
+#define OA_TC6_PHY_C45_PCS_MMS2			2	/* MMD 3 */
+#define OA_TC6_PHY_C45_PMA_PMD_MMS3		3	/* MMD 1 */
+#define OA_TC6_PHY_C45_VS_PLCA_MMS4		4	/* MMD 31 */
+#define OA_TC6_PHY_C45_AUTO_NEG_MMS5		5	/* MMD 7 */
+#define OA_TC6_PHY_C45_POWER_UNIT_MMS6		6	/* MMD 13 */
+
 struct oa_tc6;
 
-struct oa_tc6 *oa_tc6_init(struct spi_device *spi, struct net_device *netdev);
+enum oa_tc6_quirk_flag {
+	OA_TC6_BROKEN_PHY = BIT(0),
+};
+
+struct oa_tc6_quirks {
+	enum oa_tc6_quirk_flag quirk_flags;
+};
+
+struct oa_tc6 *oa_tc6_init(struct spi_device *spi, struct net_device *netdev,
+			   struct oa_tc6_quirks *quirks);
 void oa_tc6_exit(struct oa_tc6 *tc6);
 int oa_tc6_write_register(struct oa_tc6 *tc6, u32 address, u32 value);
+int oa_tc6_write_register_mms(struct oa_tc6 *tc6, u8 mms, u16 address,
+			      u32 value);
 int oa_tc6_write_registers(struct oa_tc6 *tc6, u32 address, u32 value[],
 			   u8 length);
 int oa_tc6_read_register(struct oa_tc6 *tc6, u32 address, u32 *value);
+int oa_tc6_read_register_mms(struct oa_tc6 *tc6, u8 mms, u16 address,
+			     u32 *value);
 int oa_tc6_read_registers(struct oa_tc6 *tc6, u32 address, u32 value[],
 			  u8 length);
 netdev_tx_t oa_tc6_start_xmit(struct oa_tc6 *tc6, struct sk_buff *skb);
 int oa_tc6_zero_align_receive_frame_enable(struct oa_tc6 *tc6);
+int oa_tc6_mdiobus_read_c45(struct mii_bus *bus, int addr, int devnum,
+			    int regnum);
+int oa_tc6_mdiobus_write_c45(struct mii_bus *bus, int addr, int devnum,
+			     int regnum, u16 val);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index fc680901275b..11092c3175b3 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -2231,6 +2231,11 @@ static inline void phy_device_reset(struct phy_device *phydev, int value)
 	mdio_device_reset(&phydev->mdio, value);
 }
 
+static inline bool phy_device_has_reset(struct phy_device *phydev)
+{
+	return mdiodev_has_reset(&phydev->mdio);
+}
+
 #define phydev_err(_phydev, format, args...)	\
 	dev_err(&_phydev->mdio.dev, format, ##args)
 
@@ -2297,6 +2302,9 @@ static inline int genphy_no_config_intr(struct phy_device *phydev)
 {
 	return 0;
 }
+int genphy_read_mmd_c45(struct phy_device *phydev, int devnum, u16 regnum);
+int genphy_write_mmd_c45(struct phy_device *phydev, int devnum, u16 regnum,
+			 u16 val);
 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
 				u16 regnum);
 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index ea39dd23a197..95729339e7a5 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -115,6 +115,10 @@ bool rtnl_net_is_locked(struct net *net);
 
 bool lockdep_rtnl_net_is_held(struct net *net);
 
+void rtnl_net_queue_work(struct net *net);
+void rtnl_net_flush_workqueue(void);
+void rtnl_net_work_func(struct work_struct *work);
+
 #define rcu_dereference_rtnl_net(net, p)				\
 	rcu_dereference_check(p, lockdep_rtnl_net_is_held(net))
 #define rtnl_net_dereference(net, p)					\
@@ -150,6 +154,10 @@ static inline void ASSERT_RTNL_NET(struct net *net)
 	ASSERT_RTNL();
 }
 
+static inline void rtnl_net_flush_workqueue(void)
+{
+}
+
 #define rcu_dereference_rtnl_net(net, p)		\
 	rcu_dereference_rtnl(p)
 #define rtnl_net_dereference(net, p)			\
diff --git a/include/linux/udp.h b/include/linux/udp.h
index ce56ebcee5cb..998906ec3b32 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -23,6 +23,33 @@ static inline struct udphdr *udp_hdr(const struct sk_buff *skb)
 	return (struct udphdr *)skb_transport_header(skb);
 }
 
+static inline unsigned int udp_get_len(const struct sk_buff *skb,
+				       const struct udphdr *uh,
+				       unsigned int dataoff)
+{
+	if (uh->len)
+		return ntohs(uh->len);
+	if (skb_is_gso(skb)) /* BIG TCP */
+		return skb->len - dataoff;
+	return 0;
+}
+
+static inline unsigned int udp_get_len_short(const struct udphdr *uh)
+{
+	return ntohs(uh->len);
+}
+
+static inline void udp_set_len(struct udphdr *uh, unsigned int len)
+{
+	uh->len = len < GRO_LEGACY_MAX_SIZE ? htons(len) : 0;
+}
+
+static inline void udp_set_len_short(struct udphdr *uh, unsigned int len)
+{
+	DEBUG_NET_WARN_ON_ONCE(len >= GRO_LEGACY_MAX_SIZE);
+	uh->len = htons(len);
+}
+
 #define UDP_HTABLE_SIZE_MIN_PERNET	128
 #define UDP_HTABLE_SIZE_MIN		(IS_ENABLED(CONFIG_BASE_SMALL) ? 128 : 256)
 #define UDP_HTABLE_SIZE_MAX		65536