Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:

 1) Support 6Ghz band in ath11k driver, from Rajkumar Manoharan.

 2) Support UDP segmentation in code TSO code, from Eric Dumazet.

 3) Allow flashing different flash images in cxgb4 driver, from Vishal
    Kulkarni.

 4) Add drop frames counter and flow status to tc flower offloading,
    from Po Liu.

 5) Support n-tuple filters in cxgb4, from Vishal Kulkarni.

 6) Various new indirect call avoidance, from Eric Dumazet and Brian
    Vazquez.

 7) Fix BPF verifier failures on 32-bit pointer arithmetic, from
    Yonghong Song.

 8) Support querying and setting hardware address of a port function via
    devlink, use this in mlx5, from Parav Pandit.

 9) Support hw ipsec offload on bonding slaves, from Jarod Wilson.

10) Switch qca8k driver over to phylink, from Jonathan McDowell.

11) In bpftool, show list of processes holding BPF FD references to
    maps, programs, links, and btf objects. From Andrii Nakryiko.

12) Several conversions over to generic power management, from Vaibhav
    Gupta.

13) Add support for SO_KEEPALIVE et al. to bpf_setsockopt(), from Dmitry
    Yakunin.

14) Various https url conversions, from Alexander A. Klimov.

15) Timestamping and PHC support for mscc PHY driver, from Antoine
    Tenart.

16) Support bpf iterating over tcp and udp sockets, from Yonghong Song.

17) Support 5GBASE-T i40e NICs, from Aleksandr Loktionov.

18) Add kTLS RX HW offload support to mlx5e, from Tariq Toukan.

19) Fix the ->ndo_start_xmit() return type to be netdev_tx_t in several
    drivers. From Luc Van Oostenryck.

20) XDP support for xen-netfront, from Denis Kirjanov.

21) Support receive buffer autotuning in MPTCP, from Florian Westphal.

22) Support EF100 chip in sfc driver, from Edward Cree.

23) Add XDP support to mvpp2 driver, from Matteo Croce.

24) Support MPTCP in sock_diag, from Paolo Abeni.

25) Commonize UDP tunnel offloading code by creating udp_tunnel_nic
    infrastructure, from Jakub Kicinski.

26) Several pci_ --> dma_ API conversions, from Christophe JAILLET.

27) Add FLOW_ACTION_POLICE support to mlxsw, from Ido Schimmel.

28) Add SK_LOOKUP bpf program type, from Jakub Sitnicki.

29) Refactor a lot of networking socket option handling code in order to
    avoid set_fs() calls, from Christoph Hellwig.

30) Add rfc4884 support to icmp code, from Willem de Bruijn.

31) Support TBF offload in dpaa2-eth driver, from Ioana Ciornei.

32) Support XDP_REDIRECT in qede driver, from Alexander Lobakin.

33) Support PCI relaxed ordering in mlx5 driver, from Aya Levin.

34) Support TCP syncookies in MPTCP, from Flowian Westphal.

35) Fix several tricky cases of PMTU handling wrt. briding, from Stefano
    Brivio.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2056 commits)
  net: thunderx: initialize VF's mailbox mutex before first usage
  usb: hso: remove bogus check for EINPROGRESS
  usb: hso: no complaint about kmalloc failure
  hso: fix bailout in error case of probe
  ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM
  selftests/net: relax cpu affinity requirement in msg_zerocopy test
  mptcp: be careful on subflow creation
  selftests: rtnetlink: make kci_test_encap() return sub-test result
  selftests: rtnetlink: correct the final return value for the test
  net: dsa: sja1105: use detected device id instead of DT one on mismatch
  tipc: set ub->ifindex for local ipv6 address
  ipv6: add ipv6_dev_find()
  net: openvswitch: silence suspicious RCU usage warning
  Revert "vxlan: fix tos value before xmit"
  ptp: only allow phase values lower than 1 period
  farsync: switch from 'pci_' to 'dma_' API
  wan: wanxl: switch from 'pci_' to 'dma_' API
  hv_netvsc: do not use VF device if link is down
  dpaa2-eth: Fix passing zero to 'PTR_ERR' warning
  net: macb: Properly handle phylink on at91sam9x
  ...

3 files changed, 294 insertions, 105 deletions

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 8bd33050b7bb..b134e679e9db 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -117,6 +117,7 @@ enum bpf_cmd {
 	BPF_LINK_GET_NEXT_ID,
 	BPF_ENABLE_STATS,
 	BPF_ITER_CREATE,
+	BPF_LINK_DETACH,
 };
 
 enum bpf_map_type {
@@ -189,6 +190,7 @@ enum bpf_prog_type {
 	BPF_PROG_TYPE_STRUCT_OPS,
 	BPF_PROG_TYPE_EXT,
 	BPF_PROG_TYPE_LSM,
+	BPF_PROG_TYPE_SK_LOOKUP,
 };
 
 enum bpf_attach_type {
@@ -226,6 +228,10 @@ enum bpf_attach_type {
 	BPF_CGROUP_INET4_GETSOCKNAME,
 	BPF_CGROUP_INET6_GETSOCKNAME,
 	BPF_XDP_DEVMAP,
+	BPF_CGROUP_INET_SOCK_RELEASE,
+	BPF_XDP_CPUMAP,
+	BPF_SK_LOOKUP,
+	BPF_XDP,
 	__MAX_BPF_ATTACH_TYPE
 };
 
@@ -238,10 +244,18 @@ enum bpf_link_type {
 	BPF_LINK_TYPE_CGROUP = 3,
 	BPF_LINK_TYPE_ITER = 4,
 	BPF_LINK_TYPE_NETNS = 5,
+	BPF_LINK_TYPE_XDP = 6,
 
 	MAX_BPF_LINK_TYPE,
 };
 
+enum bpf_iter_link_info {
+	BPF_ITER_LINK_UNSPEC = 0,
+	BPF_ITER_LINK_MAP_FD = 1,
+
+	MAX_BPF_ITER_LINK_INFO,
+};
+
 /* cgroup-bpf attach flags used in BPF_PROG_ATTACH command
  *
  * NONE(default): No further bpf programs allowed in the subtree.
@@ -603,7 +617,10 @@ union bpf_attr {
 
 	struct { /* struct used by BPF_LINK_CREATE command */
 		__u32		prog_fd;	/* eBPF program to attach */
-		__u32		target_fd;	/* object to attach to */
+		union {
+			__u32		target_fd;	/* object to attach to */
+			__u32		target_ifindex; /* target ifindex */
+		};
 		__u32		attach_type;	/* attach type */
 		__u32		flags;		/* extra flags */
 	} link_create;
@@ -618,6 +635,10 @@ union bpf_attr {
 		__u32		old_prog_fd;
 	} link_update;
 
+	struct {
+		__u32		link_fd;
+	} link_detach;
+
 	struct { /* struct used by BPF_ENABLE_STATS command */
 		__u32		type;
 	} enable_stats;
@@ -653,7 +674,7 @@ union bpf_attr {
  * 		Map value associated to *key*, or **NULL** if no entry was
  * 		found.
  *
- * int bpf_map_update_elem(struct bpf_map *map, const void *key, const void *value, u64 flags)
+ * long bpf_map_update_elem(struct bpf_map *map, const void *key, const void *value, u64 flags)
  * 	Description
  * 		Add or update the value of the entry associated to *key* in
  * 		*map* with *value*. *flags* is one of:
@@ -671,13 +692,13 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_map_delete_elem(struct bpf_map *map, const void *key)
+ * long bpf_map_delete_elem(struct bpf_map *map, const void *key)
  * 	Description
  * 		Delete entry with *key* from *map*.
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_probe_read(void *dst, u32 size, const void *unsafe_ptr)
+ * long bpf_probe_read(void *dst, u32 size, const void *unsafe_ptr)
  * 	Description
  * 		For tracing programs, safely attempt to read *size* bytes from
  * 		kernel space address *unsafe_ptr* and store the data in *dst*.
@@ -695,7 +716,7 @@ union bpf_attr {
  * 	Return
  * 		Current *ktime*.
  *
- * int bpf_trace_printk(const char *fmt, u32 fmt_size, ...)
+ * long bpf_trace_printk(const char *fmt, u32 fmt_size, ...)
  * 	Description
  * 		This helper is a "printk()-like" facility for debugging. It
  * 		prints a message defined by format *fmt* (of size *fmt_size*)
@@ -775,7 +796,7 @@ union bpf_attr {
  * 	Return
  * 		The SMP id of the processor running the program.
  *
- * int bpf_skb_store_bytes(struct sk_buff *skb, u32 offset, const void *from, u32 len, u64 flags)
+ * long bpf_skb_store_bytes(struct sk_buff *skb, u32 offset, const void *from, u32 len, u64 flags)
  * 	Description
  * 		Store *len* bytes from address *from* into the packet
  * 		associated to *skb*, at *offset*. *flags* are a combination of
@@ -792,7 +813,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_l3_csum_replace(struct sk_buff *skb, u32 offset, u64 from, u64 to, u64 size)
+ * long bpf_l3_csum_replace(struct sk_buff *skb, u32 offset, u64 from, u64 to, u64 size)
  * 	Description
  * 		Recompute the layer 3 (e.g. IP) checksum for the packet
  * 		associated to *skb*. Computation is incremental, so the helper
@@ -817,7 +838,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_l4_csum_replace(struct sk_buff *skb, u32 offset, u64 from, u64 to, u64 flags)
+ * long bpf_l4_csum_replace(struct sk_buff *skb, u32 offset, u64 from, u64 to, u64 flags)
  * 	Description
  * 		Recompute the layer 4 (e.g. TCP, UDP or ICMP) checksum for the
  * 		packet associated to *skb*. Computation is incremental, so the
@@ -849,7 +870,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_tail_call(void *ctx, struct bpf_map *prog_array_map, u32 index)
+ * long bpf_tail_call(void *ctx, struct bpf_map *prog_array_map, u32 index)
  * 	Description
  * 		This special helper is used to trigger a "tail call", or in
  * 		other words, to jump into another eBPF program. The same stack
@@ -880,7 +901,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_clone_redirect(struct sk_buff *skb, u32 ifindex, u64 flags)
+ * long bpf_clone_redirect(struct sk_buff *skb, u32 ifindex, u64 flags)
  * 	Description
  * 		Clone and redirect the packet associated to *skb* to another
  * 		net device of index *ifindex*. Both ingress and egress
@@ -916,7 +937,7 @@ union bpf_attr {
  * 		A 64-bit integer containing the current GID and UID, and
  * 		created as such: *current_gid* **<< 32 \|** *current_uid*.
  *
- * int bpf_get_current_comm(void *buf, u32 size_of_buf)
+ * long bpf_get_current_comm(void *buf, u32 size_of_buf)
  * 	Description
  * 		Copy the **comm** attribute of the current task into *buf* of
  * 		*size_of_buf*. The **comm** attribute contains the name of
@@ -953,7 +974,7 @@ union bpf_attr {
  * 	Return
  * 		The classid, or 0 for the default unconfigured classid.
  *
- * int bpf_skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci)
+ * long bpf_skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci)
  * 	Description
  * 		Push a *vlan_tci* (VLAN tag control information) of protocol
  * 		*vlan_proto* to the packet associated to *skb*, then update
@@ -969,7 +990,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_vlan_pop(struct sk_buff *skb)
+ * long bpf_skb_vlan_pop(struct sk_buff *skb)
  * 	Description
  * 		Pop a VLAN header from the packet associated to *skb*.
  *
@@ -981,7 +1002,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_get_tunnel_key(struct sk_buff *skb, struct bpf_tunnel_key *key, u32 size, u64 flags)
+ * long bpf_skb_get_tunnel_key(struct sk_buff *skb, struct bpf_tunnel_key *key, u32 size, u64 flags)
  * 	Description
  * 		Get tunnel metadata. This helper takes a pointer *key* to an
  * 		empty **struct bpf_tunnel_key** of **size**, that will be
@@ -1032,7 +1053,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_set_tunnel_key(struct sk_buff *skb, struct bpf_tunnel_key *key, u32 size, u64 flags)
+ * long bpf_skb_set_tunnel_key(struct sk_buff *skb, struct bpf_tunnel_key *key, u32 size, u64 flags)
  * 	Description
  * 		Populate tunnel metadata for packet associated to *skb.* The
  * 		tunnel metadata is set to the contents of *key*, of *size*. The
@@ -1098,7 +1119,7 @@ union bpf_attr {
  * 		The value of the perf event counter read from the map, or a
  * 		negative error code in case of failure.
  *
- * int bpf_redirect(u32 ifindex, u64 flags)
+ * long bpf_redirect(u32 ifindex, u64 flags)
  * 	Description
  * 		Redirect the packet to another net device of index *ifindex*.
  * 		This helper is somewhat similar to **bpf_clone_redirect**\
@@ -1145,7 +1166,7 @@ union bpf_attr {
  * 		The realm of the route for the packet associated to *skb*, or 0
  * 		if none was found.
  *
- * int bpf_perf_event_output(void *ctx, struct bpf_map *map, u64 flags, void *data, u64 size)
+ * long bpf_perf_event_output(void *ctx, struct bpf_map *map, u64 flags, void *data, u64 size)
  * 	Description
  * 		Write raw *data* blob into a special BPF perf event held by
  * 		*map* of type **BPF_MAP_TYPE_PERF_EVENT_ARRAY**. This perf
@@ -1190,7 +1211,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_load_bytes(const void *skb, u32 offset, void *to, u32 len)
+ * long bpf_skb_load_bytes(const void *skb, u32 offset, void *to, u32 len)
  * 	Description
  * 		This helper was provided as an easy way to load data from a
  * 		packet. It can be used to load *len* bytes from *offset* from
@@ -1207,7 +1228,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_get_stackid(void *ctx, struct bpf_map *map, u64 flags)
+ * long bpf_get_stackid(void *ctx, struct bpf_map *map, u64 flags)
  * 	Description
  * 		Walk a user or a kernel stack and return its id. To achieve
  * 		this, the helper needs *ctx*, which is a pointer to the context
@@ -1276,7 +1297,7 @@ union bpf_attr {
  * 		The checksum result, or a negative error code in case of
  * 		failure.
  *
- * int bpf_skb_get_tunnel_opt(struct sk_buff *skb, void *opt, u32 size)
+ * long bpf_skb_get_tunnel_opt(struct sk_buff *skb, void *opt, u32 size)
  * 	Description
  * 		Retrieve tunnel options metadata for the packet associated to
  * 		*skb*, and store the raw tunnel option data to the buffer *opt*
@@ -1294,7 +1315,7 @@ union bpf_attr {
  * 	Return
  * 		The size of the option data retrieved.
  *
- * int bpf_skb_set_tunnel_opt(struct sk_buff *skb, void *opt, u32 size)
+ * long bpf_skb_set_tunnel_opt(struct sk_buff *skb, void *opt, u32 size)
  * 	Description
  * 		Set tunnel options metadata for the packet associated to *skb*
  * 		to the option data contained in the raw buffer *opt* of *size*.
@@ -1304,7 +1325,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_change_proto(struct sk_buff *skb, __be16 proto, u64 flags)
+ * long bpf_skb_change_proto(struct sk_buff *skb, __be16 proto, u64 flags)
  * 	Description
  * 		Change the protocol of the *skb* to *proto*. Currently
  * 		supported are transition from IPv4 to IPv6, and from IPv6 to
@@ -1331,7 +1352,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_change_type(struct sk_buff *skb, u32 type)
+ * long bpf_skb_change_type(struct sk_buff *skb, u32 type)
  * 	Description
  * 		Change the packet type for the packet associated to *skb*. This
  * 		comes down to setting *skb*\ **->pkt_type** to *type*, except
@@ -1358,7 +1379,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_under_cgroup(struct sk_buff *skb, struct bpf_map *map, u32 index)
+ * long bpf_skb_under_cgroup(struct sk_buff *skb, struct bpf_map *map, u32 index)
  * 	Description
  * 		Check whether *skb* is a descendant of the cgroup2 held by
  * 		*map* of type **BPF_MAP_TYPE_CGROUP_ARRAY**, at *index*.
@@ -1389,7 +1410,7 @@ union bpf_attr {
  * 	Return
  * 		A pointer to the current task struct.
  *
- * int bpf_probe_write_user(void *dst, const void *src, u32 len)
+ * long bpf_probe_write_user(void *dst, const void *src, u32 len)
  * 	Description
  * 		Attempt in a safe way to write *len* bytes from the buffer
  * 		*src* to *dst* in memory. It only works for threads that are in
@@ -1408,7 +1429,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_current_task_under_cgroup(struct bpf_map *map, u32 index)
+ * long bpf_current_task_under_cgroup(struct bpf_map *map, u32 index)
  * 	Description
  * 		Check whether the probe is being run is the context of a given
  * 		subset of the cgroup2 hierarchy. The cgroup2 to test is held by
@@ -1420,7 +1441,7 @@ union bpf_attr {
  * 		* 1, if the *skb* task does not belong to the cgroup2.
  * 		* A negative error code, if an error occurred.
  *
- * int bpf_skb_change_tail(struct sk_buff *skb, u32 len, u64 flags)
+ * long bpf_skb_change_tail(struct sk_buff *skb, u32 len, u64 flags)
  * 	Description
  * 		Resize (trim or grow) the packet associated to *skb* to the
  * 		new *len*. The *flags* are reserved for future usage, and must
@@ -1444,7 +1465,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_pull_data(struct sk_buff *skb, u32 len)
+ * long bpf_skb_pull_data(struct sk_buff *skb, u32 len)
  * 	Description
  * 		Pull in non-linear data in case the *skb* is non-linear and not
  * 		all of *len* are part of the linear section. Make *len* bytes
@@ -1500,7 +1521,7 @@ union bpf_attr {
  * 		recalculation the next time the kernel tries to access this
  * 		hash or when the **bpf_get_hash_recalc**\ () helper is called.
  *
- * int bpf_get_numa_node_id(void)
+ * long bpf_get_numa_node_id(void)
  * 	Description
  * 		Return the id of the current NUMA node. The primary use case
  * 		for this helper is the selection of sockets for the local NUMA
@@ -1511,7 +1532,7 @@ union bpf_attr {
  * 	Return
  * 		The id of current NUMA node.
  *
- * int bpf_skb_change_head(struct sk_buff *skb, u32 len, u64 flags)
+ * long bpf_skb_change_head(struct sk_buff *skb, u32 len, u64 flags)
  * 	Description
  * 		Grows headroom of packet associated to *skb* and adjusts the
  * 		offset of the MAC header accordingly, adding *len* bytes of
@@ -1532,7 +1553,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_xdp_adjust_head(struct xdp_buff *xdp_md, int delta)
+ * long bpf_xdp_adjust_head(struct xdp_buff *xdp_md, int delta)
  * 	Description
  * 		Adjust (move) *xdp_md*\ **->data** by *delta* bytes. Note that
  * 		it is possible to use a negative value for *delta*. This helper
@@ -1547,7 +1568,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_probe_read_str(void *dst, u32 size, const void *unsafe_ptr)
+ * long bpf_probe_read_str(void *dst, u32 size, const void *unsafe_ptr)
  * 	Description
  * 		Copy a NUL terminated string from an unsafe kernel address
  * 		*unsafe_ptr* to *dst*. See **bpf_probe_read_kernel_str**\ () for
@@ -1595,14 +1616,14 @@ union bpf_attr {
  * 		is returned (note that **overflowuid** might also be the actual
  * 		UID value for the socket).
  *
- * u32 bpf_set_hash(struct sk_buff *skb, u32 hash)
+ * long bpf_set_hash(struct sk_buff *skb, u32 hash)
  * 	Description
  * 		Set the full hash for *skb* (set the field *skb*\ **->hash**)
  * 		to value *hash*.
  * 	Return
  * 		0
  *
- * int bpf_setsockopt(void *bpf_socket, int level, int optname, void *optval, int optlen)
+ * long bpf_setsockopt(void *bpf_socket, int level, int optname, void *optval, int optlen)
  * 	Description
  * 		Emulate a call to **setsockopt()** on the socket associated to
  * 		*bpf_socket*, which must be a full socket. The *level* at
@@ -1621,16 +1642,19 @@ union bpf_attr {
  *
  * 		* **SOL_SOCKET**, which supports the following *optname*\ s:
  * 		  **SO_RCVBUF**, **SO_SNDBUF**, **SO_MAX_PACING_RATE**,
- * 		  **SO_PRIORITY**, **SO_RCVLOWAT**, **SO_MARK**.
+ * 		  **SO_PRIORITY**, **SO_RCVLOWAT**, **SO_MARK**,
+ * 		  **SO_BINDTODEVICE**, **SO_KEEPALIVE**.
  * 		* **IPPROTO_TCP**, which supports the following *optname*\ s:
  * 		  **TCP_CONGESTION**, **TCP_BPF_IW**,
- * 		  **TCP_BPF_SNDCWND_CLAMP**.
+ * 		  **TCP_BPF_SNDCWND_CLAMP**, **TCP_SAVE_SYN**,
+ * 		  **TCP_KEEPIDLE**, **TCP_KEEPINTVL**, **TCP_KEEPCNT**,
+ * 		  **TCP_SYNCNT**, **TCP_USER_TIMEOUT**.
  * 		* **IPPROTO_IP**, which supports *optname* **IP_TOS**.
  * 		* **IPPROTO_IPV6**, which supports *optname* **IPV6_TCLASS**.
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_adjust_room(struct sk_buff *skb, s32 len_diff, u32 mode, u64 flags)
+ * long bpf_skb_adjust_room(struct sk_buff *skb, s32 len_diff, u32 mode, u64 flags)
  * 	Description
  * 		Grow or shrink the room for data in the packet associated to
  * 		*skb* by *len_diff*, and according to the selected *mode*.
@@ -1676,7 +1700,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_redirect_map(struct bpf_map *map, u32 key, u64 flags)
+ * long bpf_redirect_map(struct bpf_map *map, u32 key, u64 flags)
  * 	Description
  * 		Redirect the packet to the endpoint referenced by *map* at
  * 		index *key*. Depending on its type, this *map* can contain
@@ -1697,7 +1721,7 @@ union bpf_attr {
  * 		**XDP_REDIRECT** on success, or the value of the two lower bits
  * 		of the *flags* argument on error.
  *
- * int bpf_sk_redirect_map(struct sk_buff *skb, struct bpf_map *map, u32 key, u64 flags)
+ * long bpf_sk_redirect_map(struct sk_buff *skb, struct bpf_map *map, u32 key, u64 flags)
  * 	Description
  * 		Redirect the packet to the socket referenced by *map* (of type
  * 		**BPF_MAP_TYPE_SOCKMAP**) at index *key*. Both ingress and
@@ -1708,7 +1732,7 @@ union bpf_attr {
  * 	Return
  * 		**SK_PASS** on success, or **SK_DROP** on error.
  *
- * int bpf_sock_map_update(struct bpf_sock_ops *skops, struct bpf_map *map, void *key, u64 flags)
+ * long bpf_sock_map_update(struct bpf_sock_ops *skops, struct bpf_map *map, void *key, u64 flags)
  * 	Description
  * 		Add an entry to, or update a *map* referencing sockets. The
  * 		*skops* is used as a new value for the entry associated to
@@ -1727,7 +1751,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_xdp_adjust_meta(struct xdp_buff *xdp_md, int delta)
+ * long bpf_xdp_adjust_meta(struct xdp_buff *xdp_md, int delta)
  * 	Description
  * 		Adjust the address pointed by *xdp_md*\ **->data_meta** by
  * 		*delta* (which can be positive or negative). Note that this
@@ -1756,7 +1780,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_perf_event_read_value(struct bpf_map *map, u64 flags, struct bpf_perf_event_value *buf, u32 buf_size)
+ * long bpf_perf_event_read_value(struct bpf_map *map, u64 flags, struct bpf_perf_event_value *buf, u32 buf_size)
  * 	Description
  * 		Read the value of a perf event counter, and store it into *buf*
  * 		of size *buf_size*. This helper relies on a *map* of type
@@ -1806,7 +1830,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_perf_prog_read_value(struct bpf_perf_event_data *ctx, struct bpf_perf_event_value *buf, u32 buf_size)
+ * long bpf_perf_prog_read_value(struct bpf_perf_event_data *ctx, struct bpf_perf_event_value *buf, u32 buf_size)
  * 	Description
  * 		For en eBPF program attached to a perf event, retrieve the
  * 		value of the event counter associated to *ctx* and store it in
@@ -1817,7 +1841,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_getsockopt(void *bpf_socket, int level, int optname, void *optval, int optlen)
+ * long bpf_getsockopt(void *bpf_socket, int level, int optname, void *optval, int optlen)
  * 	Description
  * 		Emulate a call to **getsockopt()** on the socket associated to
  * 		*bpf_socket*, which must be a full socket. The *level* at
@@ -1842,7 +1866,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_override_return(struct pt_regs *regs, u64 rc)
+ * long bpf_override_return(struct pt_regs *regs, u64 rc)
  * 	Description
  * 		Used for error injection, this helper uses kprobes to override
  * 		the return value of the probed function, and to set it to *rc*.
@@ -1867,7 +1891,7 @@ union bpf_attr {
  * 	Return
  * 		0
  *
- * int bpf_sock_ops_cb_flags_set(struct bpf_sock_ops *bpf_sock, int argval)
+ * long bpf_sock_ops_cb_flags_set(struct bpf_sock_ops *bpf_sock, int argval)
  * 	Description
  * 		Attempt to set the value of the **bpf_sock_ops_cb_flags** field
  * 		for the full TCP socket associated to *bpf_sock_ops* to
@@ -1911,7 +1935,7 @@ union bpf_attr {
  * 		be set is returned (which comes down to 0 if all bits were set
  * 		as required).
  *
- * int bpf_msg_redirect_map(struct sk_msg_buff *msg, struct bpf_map *map, u32 key, u64 flags)
+ * long bpf_msg_redirect_map(struct sk_msg_buff *msg, struct bpf_map *map, u32 key, u64 flags)
  * 	Description
  * 		This helper is used in programs implementing policies at the
  * 		socket level. If the message *msg* is allowed to pass (i.e. if
@@ -1925,7 +1949,7 @@ union bpf_attr {
  * 	Return
  * 		**SK_PASS** on success, or **SK_DROP** on error.
  *
- * int bpf_msg_apply_bytes(struct sk_msg_buff *msg, u32 bytes)
+ * long bpf_msg_apply_bytes(struct sk_msg_buff *msg, u32 bytes)
  * 	Description
  * 		For socket policies, apply the verdict of the eBPF program to
  * 		the next *bytes* (number of bytes) of message *msg*.
@@ -1959,7 +1983,7 @@ union bpf_attr {
  * 	Return
  * 		0
  *
- * int bpf_msg_cork_bytes(struct sk_msg_buff *msg, u32 bytes)
+ * long bpf_msg_cork_bytes(struct sk_msg_buff *msg, u32 bytes)
  * 	Description
  * 		For socket policies, prevent the execution of the verdict eBPF
  * 		program for message *msg* until *bytes* (byte number) have been
@@ -1977,7 +2001,7 @@ union bpf_attr {
  * 	Return
  * 		0
  *
- * int bpf_msg_pull_data(struct sk_msg_buff *msg, u32 start, u32 end, u64 flags)
+ * long bpf_msg_pull_data(struct sk_msg_buff *msg, u32 start, u32 end, u64 flags)
  * 	Description
  * 		For socket policies, pull in non-linear data from user space
  * 		for *msg* and set pointers *msg*\ **->data** and *msg*\
@@ -2008,7 +2032,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_bind(struct bpf_sock_addr *ctx, struct sockaddr *addr, int addr_len)
+ * long bpf_bind(struct bpf_sock_addr *ctx, struct sockaddr *addr, int addr_len)
  * 	Description
  * 		Bind the socket associated to *ctx* to the address pointed by
  * 		*addr*, of length *addr_len*. This allows for making outgoing
@@ -2026,7 +2050,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_xdp_adjust_tail(struct xdp_buff *xdp_md, int delta)
+ * long bpf_xdp_adjust_tail(struct xdp_buff *xdp_md, int delta)
  * 	Description
  * 		Adjust (move) *xdp_md*\ **->data_end** by *delta* bytes. It is
  * 		possible to both shrink and grow the packet tail.
@@ -2040,7 +2064,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_skb_get_xfrm_state(struct sk_buff *skb, u32 index, struct bpf_xfrm_state *xfrm_state, u32 size, u64 flags)
+ * long bpf_skb_get_xfrm_state(struct sk_buff *skb, u32 index, struct bpf_xfrm_state *xfrm_state, u32 size, u64 flags)
  * 	Description
  * 		Retrieve the XFRM state (IP transform framework, see also
  * 		**ip-xfrm(8)**) at *index* in XFRM "security path" for *skb*.
@@ -2056,7 +2080,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_get_stack(void *ctx, void *buf, u32 size, u64 flags)
+ * long bpf_get_stack(void *ctx, void *buf, u32 size, u64 flags)
  * 	Description
  * 		Return a user or a kernel stack in bpf program provided buffer.
  * 		To achieve this, the helper needs *ctx*, which is a pointer
@@ -2089,7 +2113,7 @@ union bpf_attr {
  * 		A non-negative value equal to or less than *size* on success,
  * 		or a negative error in case of failure.
  *
- * int bpf_skb_load_bytes_relative(const void *skb, u32 offset, void *to, u32 len, u32 start_header)
+ * long bpf_skb_load_bytes_relative(const void *skb, u32 offset, void *to, u32 len, u32 start_header)
  * 	Description
  * 		This helper is similar to **bpf_skb_load_bytes**\ () in that
  * 		it provides an easy way to load *len* bytes from *offset*
@@ -2111,7 +2135,7 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_fib_lookup(void *ctx, struct bpf_fib_lookup *params, int plen, u32 flags)
+ * long bpf_fib_lookup(void *ctx, struct bpf_fib_lookup *params, int plen, u32 flags)
  *	Description
  *		Do FIB lookup in kernel tables using parameters in *params*.
  *		If lookup is successful and result shows packet is to be
@@ -2142,7 +2166,7 @@ union bpf_attr {
  *		* > 0 one of **BPF_FIB_LKUP_RET_** codes explaining why the
  *		  packet is not forwarded or needs assist from full stack
  *
- * int bpf_sock_hash_update(struct bpf_sock_ops *skops, struct bpf_map *map, void *key, u64 flags)
+ * long bpf_sock_hash_update(struct bpf_sock_ops *skops, struct bpf_map *map, void *key, u64 flags)
  *	Description
  *		Add an entry to, or update a sockhash *map* referencing sockets.
  *		The *skops* is used as a new value for the entry associated to
@@ -2161,7 +2185,7 @@ union bpf_attr {
  *	Return
  *		0 on success, or a negative error in case of failure.
  *
- * int bpf_msg_redirect_hash(struct sk_msg_buff *msg, struct bpf_map *map, void *key, u64 flags)
+ * long bpf_msg_redirect_hash(struct sk_msg_buff *msg, struct bpf_map *map, void *key, u64 flags)
  *	Description
  *		This helper is used in programs implementing policies at the
  *		socket level. If the message *msg* is allowed to pass (i.e. if
@@ -2175,7 +2199,7 @@ union bpf_attr {
  *	Return
  *		**SK_PASS** on success, or **SK_DROP** on error.
  *
- * int bpf_sk_redirect_hash(struct sk_buff *skb, struct bpf_map *map, void *key, u64 flags)
+ * long bpf_sk_redirect_hash(struct sk_buff *skb, struct bpf_map *map, void *key, u64 flags)
  *	Description
  *		This helper is used in programs implementing policies at the
  *		skb socket level. If the sk_buff *skb* is allowed to pass (i.e.
@@ -2189,7 +2213,7 @@ union bpf_attr {
  *	Return
  *		**SK_PASS** on success, or **SK_DROP** on error.
  *
- * int bpf_lwt_push_encap(struct sk_buff *skb, u32 type, void *hdr, u32 len)
+ * long bpf_lwt_push_encap(struct sk_buff *skb, u32 type, void *hdr, u32 len)
  *	Description
  *		Encapsulate the packet associated to *skb* within a Layer 3
  *		protocol header. This header is provided in the buffer at
@@ -2226,7 +2250,7 @@ union bpf_attr {
  *	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_lwt_seg6_store_bytes(struct sk_buff *skb, u32 offset, const void *from, u32 len)
+ * long bpf_lwt_seg6_store_bytes(struct sk_buff *skb, u32 offset, const void *from, u32 len)
  *	Description
  *		Store *len* bytes from address *from* into the packet
  *		associated to *skb*, at *offset*. Only the flags, tag and TLVs
@@ -2241,7 +2265,7 @@ union bpf_attr {
  *	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_lwt_seg6_adjust_srh(struct sk_buff *skb, u32 offset, s32 delta)
+ * long bpf_lwt_seg6_adjust_srh(struct sk_buff *skb, u32 offset, s32 delta)
  *	Description
  *		Adjust the size allocated to TLVs in the outermost IPv6
  *		Segment Routing Header contained in the packet associated to
@@ -2257,7 +2281,7 @@ union bpf_attr {
  *	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_lwt_seg6_action(struct sk_buff *skb, u32 action, void *param, u32 param_len)
+ * long bpf_lwt_seg6_action(struct sk_buff *skb, u32 action, void *param, u32 param_len)
  *	Description
  *		Apply an IPv6 Segment Routing action of type *action* to the
  *		packet associated to *skb*. Each action takes a parameter
@@ -2286,7 +2310,7 @@ union bpf_attr {
  *	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_rc_repeat(void *ctx)
+ * long bpf_rc_repeat(void *ctx)
  *	Description
  *		This helper is used in programs implementing IR decoding, to
  *		report a successfully decoded repeat key message. This delays
@@ -2305,7 +2329,7 @@ union bpf_attr {
  *	Return
  *		0
  *
- * int bpf_rc_keydown(void *ctx, u32 protocol, u64 scancode, u32 toggle)
+ * long bpf_rc_keydown(void *ctx, u32 protocol, u64 scancode, u32 toggle)
  *	Description
  *		This helper is used in programs implementing IR decoding, to
  *		report a successfully decoded key press with *scancode*,
@@ -2370,7 +2394,7 @@ union bpf_attr {
  *	Return
  *		A pointer to the local storage area.
  *
- * int bpf_sk_select_reuseport(struct sk_reuseport_md *reuse, struct bpf_map *map, void *key, u64 flags)
+ * long bpf_sk_select_reuseport(struct sk_reuseport_md *reuse, struct bpf_map *map, void *key, u64 flags)
  *	Description
  *		Select a **SO_REUSEPORT** socket from a
  *		**BPF_MAP_TYPE_REUSEPORT_ARRAY** *map*.
@@ -2415,7 +2439,7 @@ union bpf_attr {
  *			Look for an IPv6 socket.
  *
  *		If the *netns* is a negative signed 32-bit integer, then the
- *		socket lookup table in the netns associated with the *ctx* will
+ *		socket lookup table in the netns associated with the *ctx*
  *		will be used. For the TC hooks, this is the netns of the device
  *		in the skb. For socket hooks, this is the netns of the socket.
  *		If *netns* is any other signed 32-bit value greater than or
@@ -2452,7 +2476,7 @@ union bpf_attr {
  *			Look for an IPv6 socket.
  *
  *		If the *netns* is a negative signed 32-bit integer, then the
- *		socket lookup table in the netns associated with the *ctx* will
+ *		socket lookup table in the netns associated with the *ctx*
  *		will be used. For the TC hooks, this is the netns of the device
  *		in the skb. For socket hooks, this is the netns of the socket.
  *		If *netns* is any other signed 32-bit value greater than or
@@ -2471,7 +2495,7 @@ union bpf_attr {
  *		result is from *reuse*\ **->socks**\ [] using the hash of the
  *		tuple.
  *
- * int bpf_sk_release(struct bpf_sock *sock)
+ * long bpf_sk_release(struct bpf_sock *sock)
  *	Description
  *		Release the reference held by *sock*. *sock* must be a
  *		non-**NULL** pointer that was returned from
@@ -2479,7 +2503,7 @@ union bpf_attr {
  *	Return
  *		0 on success, or a negative error in case of failure.
  *
- * int bpf_map_push_elem(struct bpf_map *map, const void *value, u64 flags)
+ * long bpf_map_push_elem(struct bpf_map *map, const void *value, u64 flags)
  * 	Description
  * 		Push an element *value* in *map*. *flags* is one of:
  *
@@ -2489,19 +2513,19 @@ union bpf_attr {
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_map_pop_elem(struct bpf_map *map, void *value)
+ * long bpf_map_pop_elem(struct bpf_map *map, void *value)
  * 	Description
  * 		Pop an element from *map*.
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_map_peek_elem(struct bpf_map *map, void *value)
+ * long bpf_map_peek_elem(struct bpf_map *map, void *value)
  * 	Description
  * 		Get an element from *map* without removing it.
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
- * int bpf_msg_push_data(struct sk_msg_buff *msg, u32 start, u32 len, u64 flags)
+ * long bpf_msg_push_data(struct sk_msg_buff *msg, u32 start, u32 len, u64 flags)
  *	Description
  *		For socket policies, insert *len* bytes into *msg* at offset
  *		*start*.
@@ -2517,7 +2541,7 @@ union bpf_attr {
  *	Return
  *		0 on success, or a negative error in case of failure.
  *
- * int bpf_msg_pop_data(struct sk_msg_buff *msg, u32 start, u32 len, u64 flags)
+ * long bpf_msg_pop_data(struct sk_msg_buff *msg, u32 start, u32 len, u64 flags)
  *	Description
  *		Will remove *len* bytes from a *msg* starting at byte *start*.
  *		This may result in **ENOMEM** errors under certain situations if
@@ -2529,7 +2553,7 @@ union bpf_attr {
  *	Return
  *		0 on success, or a negative error in case of failure.
  *
- * int bpf_rc_pointer_rel(void *ctx, s32 rel_x, s32 rel_y)
+ * long bpf_rc_pointer_rel(void *ctx, s32 rel_x, s32 rel_y)
  *	Description
  *		This helper is used in programs implementing IR decoding, to
  *		report a successfully decoded pointer movement.
@@ -2543,7 +2567,7 @@ union bpf_attr {
  *	Return
  *		0
  *
- * int bpf_spin_lock(struct bpf_spin_lock *lock)
+ * long bpf_spin_lock(struct bpf_spin_lock *lock)
  *	Description
  *		Acquire a spinlock represented by the pointer *lock*, which is
  *		stored as part of a value of a map. Taking the lock allows to
@@ -2591,7 +2615,7 @@ union bpf_attr {
  *	Return
  *		0
  *
- * int bpf_spin_unlock(struct bpf_spin_lock *lock)
+ * long bpf_spin_unlock(struct bpf_spin_lock *lock)
  *	Description
  *		Release the *lock* previously locked by a call to
  *		**bpf_spin_lock**\ (\ *lock*\ ).
@@ -2614,7 +2638,7 @@ union bpf_attr {
  *		A **struct bpf_tcp_sock** pointer on success, or **NULL** in
  *		case of failure.
  *
- * int bpf_skb_ecn_set_ce(struct sk_buff *skb)
+ * long bpf_skb_ecn_set_ce(struct sk_buff *skb)
  *	Description
  *		Set ECN (Explicit Congestion Notification) field of IP header
  *		to **CE** (Congestion Encountered) if current value is **ECT**
@@ -2651,7 +2675,7 @@ union bpf_attr {
  *		result is from *reuse*\ **->socks**\ [] using the hash of the
  *		tuple.
  *
- * int bpf_tcp_check_syncookie(struct bpf_sock *sk, void *iph, u32 iph_len, struct tcphdr *th, u32 th_len)
+ * long bpf_tcp_check_syncookie(struct bpf_sock *sk, void *iph, u32 iph_len, struct tcphdr *th, u32 th_len)
  * 	Description
  * 		Check whether *iph* and *th* contain a valid SYN cookie ACK for
  * 		the listening socket in *sk*.
@@ -2666,7 +2690,7 @@ union bpf_attr {
  * 		0 if *iph* and *th* are a valid SYN cookie ACK, or a negative
  * 		error otherwise.
  *
- * int bpf_sysctl_get_name(struct bpf_sysctl *ctx, char *buf, size_t buf_len, u64 flags)
+ * long bpf_sysctl_get_name(struct bpf_sysctl *ctx, char *buf, size_t buf_len, u64 flags)
  *	Description
  *		Get name of sysctl in /proc/sys/ and copy it into provided by
  *		program buffer *buf* of size *buf_len*.
@@ -2682,7 +2706,7 @@ union bpf_attr {
  *		**-E2BIG** if the buffer wasn't big enough (*buf* will contain
  *		truncated name in this case).
  *
- * int bpf_sysctl_get_current_value(struct bpf_sysctl *ctx, char *buf, size_t buf_len)
+ * long bpf_sysctl_get_current_value(struct bpf_sysctl *ctx, char *buf, size_t buf_len)
  *	Description
  *		Get current value of sysctl as it is presented in /proc/sys