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

Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...

1 files changed, 54 insertions, 13 deletions

diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 10d521f0b17f..37fe9a644f22 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Copyright (C) 2009-2017  B.A.T.M.A.N. contributors:
  *
  * Marek Lindner
@@ -22,7 +23,7 @@
 #include <linux/byteorder/generic.h>
 #include <linux/errno.h>
 #include <linux/etherdevice.h>
-#include <linux/fs.h>
+#include <linux/gfp.h>
 #include <linux/if_ether.h>
 #include <linux/if_vlan.h>
 #include <linux/in.h>
@@ -42,6 +43,7 @@
 #include <linux/stddef.h>
 #include <linux/udp.h>
 #include <net/sock.h>
+#include <uapi/linux/batadv_packet.h>
 #include <uapi/linux/batman_adv.h>
 
 #include "gateway_common.h"
@@ -49,7 +51,6 @@
 #include "log.h"
 #include "netlink.h"
 #include "originator.h"
-#include "packet.h"
 #include "routing.h"
 #include "soft-interface.h"
 #include "sysfs.h"
@@ -68,8 +69,8 @@
 #define BATADV_DHCP_CHADDR_OFFSET	28
 
 /**
- * batadv_gw_node_release - release gw_node from lists and queue for free after
- *  rcu grace period
+ * batadv_gw_node_release() - release gw_node from lists and queue for free
+ *  after rcu grace period
  * @ref: kref pointer of the gw_node
  */
 static void batadv_gw_node_release(struct kref *ref)
@@ -83,7 +84,8 @@ static void batadv_gw_node_release(struct kref *ref)
 }
 
 /**
- * batadv_gw_node_put - decrement the gw_node refcounter and possibly release it
+ * batadv_gw_node_put() - decrement the gw_node refcounter and possibly release
+ *  it
  * @gw_node: gateway node to free
  */
 void batadv_gw_node_put(struct batadv_gw_node *gw_node)
@@ -91,6 +93,12 @@ void batadv_gw_node_put(struct batadv_gw_node *gw_node)
 	kref_put(&gw_node->refcount, batadv_gw_node_release);
 }
 
+/**
+ * batadv_gw_get_selected_gw_node() - Get currently selected gateway
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Return: selected gateway (with increased refcnt), NULL on errors
+ */
 struct batadv_gw_node *
 batadv_gw_get_selected_gw_node(struct batadv_priv *bat_priv)
 {
@@ -109,6 +117,12 @@ out:
 	return gw_node;
 }
 
+/**
+ * batadv_gw_get_selected_orig() - Get originator of currently selected gateway
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Return: orig_node of selected gateway (with increased refcnt), NULL on errors
+ */
 struct batadv_orig_node *
 batadv_gw_get_selected_orig(struct batadv_priv *bat_priv)
 {
@@ -155,7 +169,7 @@ static void batadv_gw_select(struct batadv_priv *bat_priv,
 }
 
 /**
- * batadv_gw_reselect - force a gateway reselection
+ * batadv_gw_reselect() - force a gateway reselection
  * @bat_priv: the bat priv with all the soft interface information
  *
  * Set a flag to remind the GW component to perform a new gateway reselection.
@@ -171,7 +185,7 @@ void batadv_gw_reselect(struct batadv_priv *bat_priv)
 }
 
 /**
- * batadv_gw_check_client_stop - check if client mode has been switched off
+ * batadv_gw_check_client_stop() - check if client mode has been switched off
  * @bat_priv: the bat priv with all the soft interface information
  *
  * This function assumes the caller has checked that the gw state *is actually
@@ -202,6 +216,10 @@ void batadv_gw_check_client_stop(struct batadv_priv *bat_priv)
 	batadv_gw_node_put(curr_gw);
 }
 
+/**
+ * batadv_gw_election() - Elect the best gateway
+ * @bat_priv: the bat priv with all the soft interface information
+ */
 void batadv_gw_election(struct batadv_priv *bat_priv)
 {
 	struct batadv_gw_node *curr_gw = NULL;
@@ -290,6 +308,11 @@ out:
 		batadv_neigh_ifinfo_put(router_ifinfo);
 }
 
+/**
+ * batadv_gw_check_election() - Elect orig node as best gateway when eligible
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: orig node which is to be checked
+ */
 void batadv_gw_check_election(struct batadv_priv *bat_priv,
 			      struct batadv_orig_node *orig_node)
 {
@@ -321,7 +344,7 @@ out:
 }
 
 /**
- * batadv_gw_node_add - add gateway node to list of available gateways
+ * batadv_gw_node_add() - add gateway node to list of available gateways
  * @bat_priv: the bat priv with all the soft interface information
  * @orig_node: originator announcing gateway capabilities
  * @gateway: announced bandwidth information
@@ -364,7 +387,7 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv,
 }
 
 /**
- * batadv_gw_node_get - retrieve gateway node from list of available gateways
+ * batadv_gw_node_get() - retrieve gateway node from list of available gateways
  * @bat_priv: the bat priv with all the soft interface information
  * @orig_node: originator announcing gateway capabilities
  *
@@ -393,7 +416,7 @@ struct batadv_gw_node *batadv_gw_node_get(struct batadv_priv *bat_priv,
 }
 
 /**
- * batadv_gw_node_update - update list of available gateways with changed
+ * batadv_gw_node_update() - update list of available gateways with changed
  *  bandwidth information
  * @bat_priv: the bat priv with all the soft interface information
  * @orig_node: originator announcing gateway capabilities
@@ -458,6 +481,11 @@ out:
 		batadv_gw_node_put(gw_node);
 }
 
+/**
+ * batadv_gw_node_delete() - Remove orig_node from gateway list
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: orig node which is currently in process of being removed
+ */
 void batadv_gw_node_delete(struct batadv_priv *bat_priv,
 			   struct batadv_orig_node *orig_node)
 {
@@ -469,6 +497,10 @@ void batadv_gw_node_delete(struct batadv_priv *bat_priv,
 	batadv_gw_node_update(bat_priv, orig_node, &gateway);
 }
 
+/**
+ * batadv_gw_node_free() - Free gateway information from soft interface
+ * @bat_priv: the bat priv with all the soft interface information
+ */
 void batadv_gw_node_free(struct batadv_priv *bat_priv)
 {
 	struct batadv_gw_node *gw_node;
@@ -484,6 +516,14 @@ void batadv_gw_node_free(struct batadv_priv *bat_priv)
 }
 
 #ifdef CONFIG_BATMAN_ADV_DEBUGFS
+
+/**
+ * batadv_gw_client_seq_print_text() - Print the gateway table in a seq file
+ * @seq: seq file to print on
+ * @offset: not used
+ *
+ * Return: always 0
+ */
 int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset)
 {
 	struct net_device *net_dev = (struct net_device *)seq->private;
@@ -514,7 +554,7 @@ int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset)
 #endif
 
 /**
- * batadv_gw_dump - Dump gateways into a message
+ * batadv_gw_dump() - Dump gateways into a message
  * @msg: Netlink message to dump into
  * @cb: Control block containing additional options
  *
@@ -567,7 +607,7 @@ out:
 }
 
 /**
- * batadv_gw_dhcp_recipient_get - check if a packet is a DHCP message
+ * batadv_gw_dhcp_recipient_get() - check if a packet is a DHCP message
  * @skb: the packet to check
  * @header_len: a pointer to the batman-adv header size
  * @chaddr: buffer where the client address will be stored. Valid
@@ -686,7 +726,8 @@ batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len,
 }
 
 /**
- * batadv_gw_out_of_range - check if the dhcp request destination is the best gw
+ * batadv_gw_out_of_range() - check if the dhcp request destination is the best
+ *  gateway
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the outgoing packet
  *