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

Pull networking updates from David Miller:
 "Highlights:

   1) Maintain the TCP retransmit queue using an rbtree, with 1GB
      windows at 100Gb this really has become necessary. From Eric
      Dumazet.

   2) Multi-program support for cgroup+bpf, from Alexei Starovoitov.

   3) Perform broadcast flooding in hardware in mv88e6xxx, from Andrew
      Lunn.

   4) Add meter action support to openvswitch, from Andy Zhou.

   5) Add a data meta pointer for BPF accessible packets, from Daniel
      Borkmann.

   6) Namespace-ify almost all TCP sysctl knobs, from Eric Dumazet.

   7) Turn on Broadcom Tags in b53 driver, from Florian Fainelli.

   8) More work to move the RTNL mutex down, from Florian Westphal.

   9) Add 'bpftool' utility, to help with bpf program introspection.
      From Jakub Kicinski.

  10) Add new 'cpumap' type for XDP_REDIRECT action, from Jesper
      Dangaard Brouer.

  11) Support 'blocks' of transformations in the packet scheduler which
      can span multiple network devices, from Jiri Pirko.

  12) TC flower offload support in cxgb4, from Kumar Sanghvi.

  13) Priority based stream scheduler for SCTP, from Marcelo Ricardo
      Leitner.

  14) Thunderbolt networking driver, from Amir Levy and Mika Westerberg.

  15) Add RED qdisc offloadability, and use it in mlxsw driver. From
      Nogah Frankel.

  16) eBPF based device controller for cgroup v2, from Roman Gushchin.

  17) Add some fundamental tracepoints for TCP, from Song Liu.

  18) Remove garbage collection from ipv6 route layer, this is a
      significant accomplishment. From Wei Wang.

  19) Add multicast route offload support to mlxsw, from Yotam Gigi"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2177 commits)
  tcp: highest_sack fix
  geneve: fix fill_info when link down
  bpf: fix lockdep splat
  net: cdc_ncm: GetNtbFormat endian fix
  openvswitch: meter: fix NULL pointer dereference in ovs_meter_cmd_reply_start
  netem: remove unnecessary 64 bit modulus
  netem: use 64 bit divide by rate
  tcp: Namespace-ify sysctl_tcp_default_congestion_control
  net: Protect iterations over net::fib_notifier_ops in fib_seq_sum()
  ipv6: set all.accept_dad to 0 by default
  uapi: fix linux/tls.h userspace compilation error
  usbnet: ipheth: prevent TX queue timeouts when device not ready
  vhost_net: conditionally enable tx polling
  uapi: fix linux/rxrpc.h userspace compilation errors
  net: stmmac: fix LPI transitioning for dwmac4
  atm: horizon: Fix irq release error
  net-sysfs: trigger netlink notification on ifalias change via sysfs
  openvswitch: Using kfree_rcu() to simplify the code
  openvswitch: Make local function ovs_nsh_key_attr_size() static
  openvswitch: Fix return value check in ovs_meter_cmd_features()
  ...

2 files changed, 66 insertions, 56 deletions

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 6eb228a70131..2f57722f5d03 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -57,7 +57,7 @@ static __read_mostly seqcount_t xfrm_policy_hash_generation;
 static void xfrm_init_pmtu(struct dst_entry *dst);
 static int stale_bundle(struct dst_entry *dst);
 static int xfrm_bundle_ok(struct xfrm_dst *xdst);
-static void xfrm_policy_queue_process(unsigned long arg);
+static void xfrm_policy_queue_process(struct timer_list *t);
 
 static void __xfrm_policy_link(struct xfrm_policy *pol, int dir);
 static struct xfrm_policy *__xfrm_policy_unlink(struct xfrm_policy *pol,
@@ -179,9 +179,9 @@ static inline unsigned long make_jiffies(long secs)
 		return secs*HZ;
 }
 
-static void xfrm_policy_timer(unsigned long data)
+static void xfrm_policy_timer(struct timer_list *t)
 {
-	struct xfrm_policy *xp = (struct xfrm_policy *)data;
+	struct xfrm_policy *xp = from_timer(xp, t, timer);
 	unsigned long now = get_seconds();
 	long next = LONG_MAX;
 	int warn = 0;
@@ -267,10 +267,9 @@ struct xfrm_policy *xfrm_policy_alloc(struct net *net, gfp_t gfp)
 		rwlock_init(&policy->lock);
 		refcount_set(&policy->refcnt, 1);
 		skb_queue_head_init(&policy->polq.hold_queue);
-		setup_timer(&policy->timer, xfrm_policy_timer,
-				(unsigned long)policy);
-		setup_timer(&policy->polq.hold_timer, xfrm_policy_queue_process,
-			    (unsigned long)policy);
+		timer_setup(&policy->timer, xfrm_policy_timer, 0);
+		timer_setup(&policy->polq.hold_timer,
+			    xfrm_policy_queue_process, 0);
 	}
 	return policy;
 }
@@ -1851,12 +1850,12 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
 	return xdst;
 }
 
-static void xfrm_policy_queue_process(unsigned long arg)
+static void xfrm_policy_queue_process(struct timer_list *t)
 {
 	struct sk_buff *skb;
 	struct sock *sk;
 	struct dst_entry *dst;
-	struct xfrm_policy *pol = (struct xfrm_policy *)arg;
+	struct xfrm_policy *pol = from_timer(pol, t, polq.hold_timer);
 	struct net *net = xp_net(pol);
 	struct xfrm_policy_queue *pq = &pol->polq;
 	struct flowi fl;
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index e44a0fed48dd..983b0233767b 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -42,7 +42,7 @@ static int verify_one_alg(struct nlattr **attrs, enum xfrm_attr_type_t type)
 		return 0;
 
 	algp = nla_data(rt);
-	if (nla_len(rt) < xfrm_alg_len(algp))
+	if (nla_len(rt) < (int)xfrm_alg_len(algp))
 		return -EINVAL;
 
 	switch (type) {
@@ -68,7 +68,7 @@ static int verify_auth_trunc(struct nlattr **attrs)
 		return 0;
 
 	algp = nla_data(rt);
-	if (nla_len(rt) < xfrm_alg_auth_len(algp))
+	if (nla_len(rt) < (int)xfrm_alg_auth_len(algp))
 		return -EINVAL;
 
 	algp->alg_name[sizeof(algp->alg_name) - 1] = '\0';
@@ -84,7 +84,7 @@ static int verify_aead(struct nlattr **attrs)
 		return 0;
 
 	algp = nla_data(rt);
-	if (nla_len(rt) < aead_len(algp))
+	if (nla_len(rt) < (int)aead_len(algp))
 		return -EINVAL;
 
 	algp->alg_name[sizeof(algp->alg_name) - 1] = '\0';
@@ -130,7 +130,7 @@ static inline int verify_replay(struct xfrm_usersa_info *p,
 		if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8)
 			return -EINVAL;
 
-		if (nla_len(rt) < xfrm_replay_state_esn_len(rs) &&
+		if (nla_len(rt) < (int)xfrm_replay_state_esn_len(rs) &&
 		    nla_len(rt) != sizeof(*rs))
 			return -EINVAL;
 	}
@@ -404,7 +404,7 @@ static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_es
 					 struct nlattr *rp)
 {
 	struct xfrm_replay_state_esn *up;
-	int ulen;
+	unsigned int ulen;
 
 	if (!replay_esn || !rp)
 		return 0;
@@ -414,7 +414,7 @@ static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_es
 
 	/* Check the overall length and the internal bitmap length to avoid
 	 * potential overflow. */
-	if (nla_len(rp) < ulen ||
+	if (nla_len(rp) < (int)ulen ||
 	    xfrm_replay_state_esn_len(replay_esn) != ulen ||
 	    replay_esn->bmp_len != up->bmp_len)
 		return -EINVAL;
@@ -430,14 +430,14 @@ static int xfrm_alloc_replay_state_esn(struct xfrm_replay_state_esn **replay_esn
 				       struct nlattr *rta)
 {
 	struct xfrm_replay_state_esn *p, *pp, *up;
-	int klen, ulen;
+	unsigned int klen, ulen;
 
 	if (!rta)
 		return 0;
 
 	up = nla_data(rta);
 	klen = xfrm_replay_state_esn_len(up);
-	ulen = nla_len(rta) >= klen ? klen : sizeof(*up);
+	ulen = nla_len(rta) >= (int)klen ? klen : sizeof(*up);
 
 	p = kzalloc(klen, GFP_KERNEL);
 	if (!p)
@@ -458,9 +458,9 @@ static int xfrm_alloc_replay_state_esn(struct xfrm_replay_state_esn **replay_esn
 	return 0;
 }
 
-static inline int xfrm_user_sec_ctx_size(struct xfrm_sec_ctx *xfrm_ctx)
+static inline unsigned int xfrm_user_sec_ctx_size(struct xfrm_sec_ctx *xfrm_ctx)
 {
-	int len = 0;
+	unsigned int len = 0;
 
 	if (xfrm_ctx) {
 		len += sizeof(struct xfrm_user_sec_ctx);
@@ -1032,7 +1032,7 @@ static inline int xfrm_nlmsg_multicast(struct net *net, struct sk_buff *skb,
 		return -1;
 }
 
-static inline size_t xfrm_spdinfo_msgsize(void)
+static inline unsigned int xfrm_spdinfo_msgsize(void)
 {
 	return NLMSG_ALIGN(4)
 	       + nla_total_size(sizeof(struct xfrmu_spdinfo))
@@ -1147,18 +1147,19 @@ static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
 	u32 *flags = nlmsg_data(nlh);
 	u32 sportid = NETLINK_CB(skb).portid;
 	u32 seq = nlh->nlmsg_seq;
+	int err;
 
 	r_skb = nlmsg_new(xfrm_spdinfo_msgsize(), GFP_ATOMIC);
 	if (r_skb == NULL)
 		return -ENOMEM;
 
-	if (build_spdinfo(r_skb, net, sportid, seq, *flags) < 0)
-		BUG();
+	err = build_spdinfo(r_skb, net, sportid, seq, *flags);
+	BUG_ON(err < 0);
 
 	return nlmsg_unicast(net->xfrm.nlsk, r_skb, sportid);
 }
 
-static inline size_t xfrm_sadinfo_msgsize(void)
+static inline unsigned int xfrm_sadinfo_msgsize(void)
 {
 	return NLMSG_ALIGN(4)
 	       + nla_total_size(sizeof(struct xfrmu_sadhinfo))
@@ -1205,13 +1206,14 @@ static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
 	u32 *flags = nlmsg_data(nlh);
 	u32 sportid = NETLINK_CB(skb).portid;
 	u32 seq = nlh->nlmsg_seq;
+	int err;
 
 	r_skb = nlmsg_new(xfrm_sadinfo_msgsize(), GFP_ATOMIC);
 	if (r_skb == NULL)
 		return -ENOMEM;
 
-	if (build_sadinfo(r_skb, net, sportid, seq, *flags) < 0)
-		BUG();
+	err = build_sadinfo(r_skb, net, sportid, seq, *flags);
+	BUG_ON(err < 0);
 
 	return nlmsg_unicast(net->xfrm.nlsk, r_skb, sportid);
 }
@@ -1634,7 +1636,7 @@ static inline int copy_to_user_sec_ctx(struct xfrm_policy *xp, struct sk_buff *s
 		return copy_sec_ctx(xp->security, skb);
 	return 0;
 }
-static inline size_t userpolicy_type_attrsize(void)
+static inline unsigned int userpolicy_type_attrsize(void)
 {
 #ifdef CONFIG_XFRM_SUB_POLICY
 	return nla_total_size(sizeof(struct xfrm_userpolicy_type));
@@ -1853,9 +1855,9 @@ static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
 	return 0;
 }
 
-static inline size_t xfrm_aevent_msgsize(struct xfrm_state *x)
+static inline unsigned int xfrm_aevent_msgsize(struct xfrm_state *x)
 {
-	size_t replay_size = x->replay_esn ?
+	unsigned int replay_size = x->replay_esn ?
 			      xfrm_replay_state_esn_len(x->replay_esn) :
 			      sizeof(struct xfrm_replay_state);
 
@@ -1960,8 +1962,9 @@ static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
 	c.seq = nlh->nlmsg_seq;
 	c.portid = nlh->nlmsg_pid;
 
-	if (build_aevent(r_skb, x, &c) < 0)
-		BUG();
+	err = build_aevent(r_skb, x, &c);
+	BUG_ON(err < 0);
+
 	err = nlmsg_unicast(net->xfrm.nlsk, r_skb, NETLINK_CB(skb).portid);
 	spin_unlock_bh(&x->lock);
 	xfrm_state_put(x);
@@ -2324,8 +2327,8 @@ static int copy_to_user_kmaddress(const struct xfrm_kmaddress *k, struct sk_buff
 	return nla_put(skb, XFRMA_KMADDRESS, sizeof(uk), &uk);
 }
 
-static inline size_t xfrm_migrate_msgsize(int num_migrate, int with_kma,
-					  int with_encp)
+static inline unsigned int xfrm_migrate_msgsize(int num_migrate, int with_kma,
+						int with_encp)
 {
 	return NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_id))
 	      + (with_kma ? nla_total_size(sizeof(struct xfrm_kmaddress)) : 0)
@@ -2388,6 +2391,7 @@ static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 {
 	struct net *net = &init_net;
 	struct sk_buff *skb;
+	int err;
 
 	skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate, !!k, !!encap),
 			GFP_ATOMIC);
@@ -2395,8 +2399,8 @@ static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 		return -ENOMEM;
 
 	/* build migrate */
-	if (build_migrate(skb, m, num_migrate, k, sel, encap, dir, type) < 0)
-		BUG();
+	err = build_migrate(skb, m, num_migrate, k, sel, encap, dir, type);
+	BUG_ON(err < 0);
 
 	return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_MIGRATE);
 }
@@ -2572,7 +2576,7 @@ static void xfrm_netlink_rcv(struct sk_buff *skb)
 	mutex_unlock(&net->xfrm.xfrm_cfg_mutex);
 }
 
-static inline size_t xfrm_expire_msgsize(void)
+static inline unsigned int xfrm_expire_msgsize(void)
 {
 	return NLMSG_ALIGN(sizeof(struct xfrm_user_expire))
 	       + nla_total_size(sizeof(struct xfrm_mark));
@@ -2623,13 +2627,14 @@ static int xfrm_aevent_state_notify(struct xfrm_state *x, const struct km_event
 {
 	struct net *net = xs_net(x);
 	struct sk_buff *skb;
+	int err;
 
 	skb = nlmsg_new(xfrm_aevent_msgsize(x), GFP_ATOMIC);
 	if (skb == NULL)
 		return -ENOMEM;
 
-	if (build_aevent(skb, x, c) < 0)
-		BUG();
+	err = build_aevent(skb, x, c);
+	BUG_ON(err < 0);
 
 	return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_AEVENTS);
 }
@@ -2660,9 +2665,9 @@ static int xfrm_notify_sa_flush(const struct km_event *c)
 	return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_SA);
 }
 
-static inline size_t xfrm_sa_len(struct xfrm_state *x)
+static inline unsigned int xfrm_sa_len(struct xfrm_state *x)
 {
-	size_t l = 0;
+	unsigned int l = 0;
 	if (x->aead)
 		l += nla_total_size(aead_len(x->aead));
 	if (x->aalg) {
@@ -2707,8 +2712,9 @@ static int xfrm_notify_sa(struct xfrm_state *x, const struct km_event *c)
 	struct xfrm_usersa_id *id;
 	struct nlmsghdr *nlh;
 	struct sk_buff *skb;
-	int len = xfrm_sa_len(x);
-	int headlen, err;
+	unsigned int len = xfrm_sa_len(x);
+	unsigned int headlen;
+	int err;
 
 	headlen = sizeof(*p);
 	if (c->event == XFRM_MSG_DELSA) {
@@ -2782,8 +2788,8 @@ static int xfrm_send_state_notify(struct xfrm_state *x, const struct km_event *c
 
 }
 
-static inline size_t xfrm_acquire_msgsize(struct xfrm_state *x,
-					  struct xfrm_policy *xp)
+static inline unsigned int xfrm_acquire_msgsize(struct xfrm_state *x,
+						struct xfrm_policy *xp)
 {
 	return NLMSG_ALIGN(sizeof(struct xfrm_user_acquire))
 	       + nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr)
@@ -2835,13 +2841,14 @@ static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt,
 {
 	struct net *net = xs_net(x);
 	struct sk_buff *skb;
+	int err;
 
 	skb = nlmsg_new(xfrm_acquire_msgsize(x, xp), GFP_ATOMIC);
 	if (skb == NULL)
 		return -ENOMEM;
 
-	if (build_acquire(skb, x, xt, xp) < 0)
-		BUG();
+	err = build_acquire(skb, x, xt, xp);
+	BUG_ON(err < 0);
 
 	return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_ACQUIRE);
 }
@@ -2906,7 +2913,7 @@ static struct xfrm_policy *xfrm_compile_policy(struct sock *sk, int opt,
 	return xp;
 }
 
-static inline size_t xfrm_polexpire_msgsize(struct xfrm_policy *xp)
+static inline unsigned int xfrm_polexpire_msgsize(struct xfrm_policy *xp)
 {
 	return NLMSG_ALIGN(sizeof(struct xfrm_user_polexpire))
 	       + nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr)
@@ -2950,26 +2957,28 @@ static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, const struct
 {
 	struct net *net = xp_net(xp);
 	struct sk_buff *skb;
+	int err;
 
 	skb = nlmsg_new(xfrm_polexpire_msgsize(xp), GFP_ATOMIC);
 	if (skb == NULL)
 		return -ENOMEM;
 
-	if (build_polexpire(skb, xp, dir, c) < 0)
-		BUG();
+	err = build_polexpire(skb, xp, dir, c);
+	BUG_ON(err < 0);
 
 	return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_EXPIRE);
 }
 
 static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, const struct km_event *c)
 {
-	int len = nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
+	unsigned int len = nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
 	struct net *net = xp_net(xp);
 	struct xfrm_userpolicy_info *p;
 	struct xfrm_userpolicy_id *id;
 	struct nlmsghdr *nlh;
 	struct sk_buff *skb;
-	int headlen, err;
+	unsigned int headlen;
+	int err;
 
 	headlen = sizeof(*p);
 	if (c->event == XFRM_MSG_DELPOLICY) {
@@ -3076,7 +3085,7 @@ static int xfrm_send_policy_notify(struct xfrm_policy *xp, int dir, const struct
 
 }
 
-static inline size_t xfrm_report_msgsize(void)
+static inline unsigned int xfrm_report_msgsize(void)
 {
 	return NLMSG_ALIGN(sizeof(struct xfrm_user_report));
 }
@@ -3110,18 +3119,19 @@ static int xfrm_send_report(struct net *net, u8 proto,
 			    struct xfrm_selector *sel, xfrm_address_t *addr)
 {
 	struct sk_buff *skb;
+	int err;
 
 	skb = nlmsg_new(xfrm_report_msgsize(), GFP_ATOMIC);
 	if (skb == NULL)
 		return -ENOMEM;
 
-	if (build_report(skb, proto, sel, addr) < 0)
-		BUG();
+	err = build_report(skb, proto, sel, addr);
+	BUG_ON(err < 0);
 
 	return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_REPORT);
 }
 
-static inline size_t xfrm_mapping_msgsize(void)
+static inline unsigned int xfrm_mapping_msgsize(void)
 {
 	return NLMSG_ALIGN(sizeof(struct xfrm_user_mapping));
 }
@@ -3157,6 +3167,7 @@ static int xfrm_send_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr,
 {
 	struct net *net = xs_net(x);
 	struct sk_buff *skb;
+	int err;
 
 	if (x->id.proto != IPPROTO_ESP)
 		return -EINVAL;
@@ -3168,8 +3179,8 @@ static int xfrm_send_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr,
 	if (skb == NULL)
 		return -ENOMEM;
 
-	if (build_mapping(skb, x, ipaddr, sport) < 0)
-		BUG();
+	err = build_mapping(skb, x, ipaddr, sport);
+	BUG_ON(err < 0);
 
 	return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_MAPPING);
 }