Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

include/linux/etherdevice.h

@@ -171,6 +171,18 @@ static inline unsigned compare_ether_addr(const u8 *addr1, const u8 *addr2)
 	return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0;
 }
 
+/**
+ * ether_addr_equal - Compare two Ethernet addresses
+ * @addr1: Pointer to a six-byte array containing the Ethernet address
+ * @addr2: Pointer other six-byte array containing the Ethernet address
+ *
+ * Compare two ethernet addresses, returns true if equal
+ */
+static inline bool ether_addr_equal(const u8 *addr1, const u8 *addr2)
+{
+	return !compare_ether_addr(addr1, addr2);
+}
+
 static inline unsigned long zap_last_2bytes(unsigned long value)
 {
 #ifdef __BIG_ENDIAN

include/linux/netfilter/xt_HMARK.h

@@ -0,0 +1,45 @@
+#ifndef XT_HMARK_H_
+#define XT_HMARK_H_
+
+#include <linux/types.h>
+
+enum {
+	XT_HMARK_SADDR_MASK,
+	XT_HMARK_DADDR_MASK,
+	XT_HMARK_SPI,
+	XT_HMARK_SPI_MASK,
+	XT_HMARK_SPORT,
+	XT_HMARK_DPORT,
+	XT_HMARK_SPORT_MASK,
+	XT_HMARK_DPORT_MASK,
+	XT_HMARK_PROTO_MASK,
+	XT_HMARK_RND,
+	XT_HMARK_MODULUS,
+	XT_HMARK_OFFSET,
+	XT_HMARK_CT,
+	XT_HMARK_METHOD_L3,
+	XT_HMARK_METHOD_L3_4,
+};
+#define XT_HMARK_FLAG(flag)	(1 << flag)
+
+union hmark_ports {
+	struct {
+		__u16	src;
+		__u16	dst;
+	} p16;
+	__u32	v32;
+};
+
+struct xt_hmark_info {
+	union nf_inet_addr	src_mask;
+	union nf_inet_addr	dst_mask;
+	union hmark_ports	port_mask;
+	union hmark_ports	port_set;
+	__u32			flags;
+	__u16			proto_mask;
+	__u32			hashrnd;
+	__u32			hmodulus;
+	__u32			hoffset;	/* Mark offset to start from */
+};
+
+#endif /* XT_HMARK_H_ */

include/linux/netfilter/xt_hashlimit.h

@@ -6,7 +6,11 @@
 /* timings are in milliseconds. */
 #define XT_HASHLIMIT_SCALE 10000
 /* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
-   seconds, or one every 59 hours. */
+ * seconds, or one packet every 59 hours.
+ */
+
+/* packet length accounting is done in 16-byte steps */
+#define XT_HASHLIMIT_BYTE_SHIFT 4
 
 /* details of this structure hidden by the implementation */
 struct xt_hashlimit_htable;
@@ -17,6 +21,10 @@ enum {
 	XT_HASHLIMIT_HASH_SIP = 1 << 2,
 	XT_HASHLIMIT_HASH_SPT = 1 << 3,
 	XT_HASHLIMIT_INVERT   = 1 << 4,
+	XT_HASHLIMIT_BYTES    = 1 << 5,
+#ifdef __KERNEL__
+	XT_HASHLIMIT_MAX      = 1 << 6,
+#endif
 };
 
 struct hashlimit_cfg {

include/linux/netfilter_ipv6/ip6_tables.h

@@ -298,9 +298,14 @@ ip6t_ext_hdr(u8 nexthdr)
 	       (nexthdr == IPPROTO_DSTOPTS);
 }
 
+enum {
+	IP6T_FH_F_FRAG	= (1 << 0),
+	IP6T_FH_F_AUTH	= (1 << 1),
+};
+
 /* find specified header and get offset to it */
 extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
-			 int target, unsigned short *fragoff);
+			 int target, unsigned short *fragoff, int *fragflg);
 
 #ifdef CONFIG_COMPAT
 #include <net/compat.h>

net/802/stp.c

@@ -46,7 +46,7 @@ static int stp_pdu_rcv(struct sk_buff *skb, struct net_device *dev,
 		proto = rcu_dereference(garp_protos[eh->h_dest[5] -
 						    GARP_ADDR_MIN]);
 		if (proto &&
-		    compare_ether_addr(eh->h_dest, proto->group_address))
+		    !ether_addr_equal(eh->h_dest, proto->group_address))
 			goto err;
 	} else
 		proto = rcu_dereference(stp_proto);

net/8021q/vlan.c

@@ -266,19 +266,19 @@ static void vlan_sync_address(struct net_device *dev,
 	struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);
 
 	/* May be called without an actual change */
-	if (!compare_ether_addr(vlan->real_dev_addr, dev->dev_addr))
+	if (ether_addr_equal(vlan->real_dev_addr, dev->dev_addr))
 		return;
 
 	/* vlan address was different from the old address and is equal to
 	 * the new address */
-	if (compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
+	if (!ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&
-	    !compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
+	    ether_addr_equal(vlandev->dev_addr, dev->dev_addr))
 		dev_uc_del(dev, vlandev->dev_addr);
 
 	/* vlan address was equal to the old address and is different from
 	 * the new address */
-	if (!compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
+	if (ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&
-	    compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
+	    !ether_addr_equal(vlandev->dev_addr, dev->dev_addr))
 		dev_uc_add(dev, vlandev->dev_addr);
 
 	memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);

net/8021q/vlan_core.c

@@ -31,8 +31,7 @@ bool vlan_do_receive(struct sk_buff **skbp, bool last_handler)
 		/* Our lower layer thinks this is not local, let's make sure.
 		 * This allows the VLAN to have a different MAC than the
 		 * underlying device, and still route correctly. */
-		if (!compare_ether_addr(eth_hdr(skb)->h_dest,
+		if (ether_addr_equal(eth_hdr(skb)->h_dest, vlan_dev->dev_addr))
-					vlan_dev->dev_addr))
 			skb->pkt_type = PACKET_HOST;
 	}
 

net/8021q/vlan_dev.c

@@ -277,7 +277,7 @@ static int vlan_dev_open(struct net_device *dev)
 	    !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
 		return -ENETDOWN;
 
-	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
+	if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) {
 		err = dev_uc_add(real_dev, dev->dev_addr);
 		if (err < 0)
 			goto out;
@@ -307,7 +307,7 @@ clear_allmulti:
 	if (dev->flags & IFF_ALLMULTI)
 		dev_set_allmulti(real_dev, -1);
 del_unicast:
-	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
+	if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
 		dev_uc_del(real_dev, dev->dev_addr);
 out:
 	netif_carrier_off(dev);
@@ -326,7 +326,7 @@ static int vlan_dev_stop(struct net_device *dev)
 	if (dev->flags & IFF_PROMISC)
 		dev_set_promiscuity(real_dev, -1);
 
-	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
+	if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
 		dev_uc_del(real_dev, dev->dev_addr);
 
 	netif_carrier_off(dev);
@@ -345,13 +345,13 @@ static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
 	if (!(dev->flags & IFF_UP))
 		goto out;
 
-	if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
+	if (!ether_addr_equal(addr->sa_data, real_dev->dev_addr)) {
 		err = dev_uc_add(real_dev, addr->sa_data);
 		if (err < 0)
 			return err;
 	}
 
-	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
+	if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
 		dev_uc_del(real_dev, dev->dev_addr);
 
 out:

net/atm/lec.c

@@ -1255,7 +1255,7 @@ static int lane2_associate_req(struct net_device *dev, const u8 *lan_dst,
 	struct sk_buff *skb;
 	struct lec_priv *priv = netdev_priv(dev);
 
-	if (compare_ether_addr(lan_dst, dev->dev_addr))
+	if (!ether_addr_equal(lan_dst, dev->dev_addr))
 		return 0;	/* not our mac address */
 
 	kfree(priv->tlvs);	/* NULL if there was no previous association */
@@ -1662,7 +1662,7 @@ static struct lec_arp_table *lec_arp_find(struct lec_priv *priv,
 
 	head = &priv->lec_arp_tables[HASH(mac_addr[ETH_ALEN - 1])];
 	hlist_for_each_entry(entry, node, head, next) {
-		if (!compare_ether_addr(mac_addr, entry->mac_addr))
+		if (ether_addr_equal(mac_addr, entry->mac_addr))
 			return entry;
 	}
 	return NULL;
@@ -1849,7 +1849,7 @@ static struct atm_vcc *lec_arp_resolve(struct lec_priv *priv,
 		case 1:
 			return priv->mcast_vcc;
 		case 2:	/* LANE2 wants arp for multicast addresses */
-			if (!compare_ether_addr(mac_to_find, bus_mac))
+			if (ether_addr_equal(mac_to_find, bus_mac))
 				return priv->mcast_vcc;
 			break;
 		default:

net/atm/mpc.c

@@ -592,8 +592,7 @@ static netdev_tx_t mpc_send_packet(struct sk_buff *skb,
 		goto non_ip;
 
 	while (i < mpc->number_of_mps_macs) {
-		if (!compare_ether_addr(eth->h_dest,
+		if (ether_addr_equal(eth->h_dest, mpc->mps_macs + i * ETH_ALEN))
-					(mpc->mps_macs + i*ETH_ALEN)))
 			if (send_via_shortcut(skb, mpc) == 0) /* try shortcut */
 				return NETDEV_TX_OK;
 		i++;

net/bluetooth/bnep/core.c

@@ -69,7 +69,7 @@ static struct bnep_session *__bnep_get_session(u8 *dst)
 	BT_DBG("");
 
 	list_for_each_entry(s, &bnep_session_list, list)
-		if (!compare_ether_addr(dst, s->eh.h_source))
+		if (ether_addr_equal(dst, s->eh.h_source))
 			return s;
 
 	return NULL;
@@ -422,10 +422,10 @@ static inline int bnep_tx_frame(struct bnep_session *s, struct sk_buff *skb)
 	iv[il++] = (struct kvec) { &type, 1 };
 	len++;
 
-	if (compress_src && !compare_ether_addr(eh->h_dest, s->eh.h_source))
+	if (compress_src && ether_addr_equal(eh->h_dest, s->eh.h_source))
 		type |= 0x01;
 
-	if (compress_dst && !compare_ether_addr(eh->h_source, s->eh.h_dest))
+	if (compress_dst && ether_addr_equal(eh->h_source, s->eh.h_dest))
 		type |= 0x02;
 
 	if (type)

net/bridge/br_device.c

@@ -170,7 +170,7 @@ static int br_set_mac_address(struct net_device *dev, void *p)
 		return -EADDRNOTAVAIL;
 
 	spin_lock_bh(&br->lock);
-	if (compare_ether_addr(dev->dev_addr, addr->sa_data)) {
+	if (!ether_addr_equal(dev->dev_addr, addr->sa_data)) {
 		dev->addr_assign_type &= ~NET_ADDR_RANDOM;
 		memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
 		br_fdb_change_mac_address(br, addr->sa_data);

net/bridge/br_fdb.c

@@ -107,8 +107,8 @@ void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr)
 				struct net_bridge_port *op;
 				list_for_each_entry(op, &br->port_list, list) {
 					if (op != p &&
-					    !compare_ether_addr(op->dev->dev_addr,
+					    ether_addr_equal(op->dev->dev_addr,
-								f->addr.addr)) {
+							     f->addr.addr)) {
 						f->dst = op;
 						goto insert;
 					}
@@ -214,8 +214,8 @@ void br_fdb_delete_by_port(struct net_bridge *br,
 				struct net_bridge_port *op;
 				list_for_each_entry(op, &br->port_list, list) {
 					if (op != p &&
-					    !compare_ether_addr(op->dev->dev_addr,
+					    ether_addr_equal(op->dev->dev_addr,
-								f->addr.addr)) {
+							     f->addr.addr)) {
 						f->dst = op;
 						goto skip_delete;
 					}
@@ -237,7 +237,7 @@ struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
 	struct net_bridge_fdb_entry *fdb;
 
 	hlist_for_each_entry_rcu(fdb, h, &br->hash[br_mac_hash(addr)], hlist) {
-		if (!compare_ether_addr(fdb->addr.addr, addr)) {
+		if (ether_addr_equal(fdb->addr.addr, addr)) {
 			if (unlikely(has_expired(br, fdb)))
 				break;
 			return fdb;
@@ -331,7 +331,7 @@ static struct net_bridge_fdb_entry *fdb_find(struct hlist_head *head,
 	struct net_bridge_fdb_entry *fdb;
 
 	hlist_for_each_entry(fdb, h, head, hlist) {
-		if (!compare_ether_addr(fdb->addr.addr, addr))
+		if (ether_addr_equal(fdb->addr.addr, addr))
 			return fdb;
 	}
 	return NULL;
@@ -344,7 +344,7 @@ static struct net_bridge_fdb_entry *fdb_find_rcu(struct hlist_head *head,
 	struct net_bridge_fdb_entry *fdb;
 
 	hlist_for_each_entry_rcu(fdb, h, head, hlist) {
-		if (!compare_ether_addr(fdb->addr.addr, addr))
+		if (ether_addr_equal(fdb->addr.addr, addr))
 			return fdb;
 	}
 	return NULL;

net/bridge/br_input.c

@@ -216,7 +216,7 @@ forward:
 		}
 		/* fall through */
 	case BR_STATE_LEARNING:
-		if (!compare_ether_addr(p->br->dev->dev_addr, dest))
+		if (ether_addr_equal(p->br->dev->dev_addr, dest))
 			skb->pkt_type = PACKET_HOST;
 
 		NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,

net/bridge/br_stp_bpdu.c

@@ -167,7 +167,7 @@ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
 	if (p->state == BR_STATE_DISABLED)
 		goto out;
 
-	if (compare_ether_addr(dest, br->group_addr) != 0)
+	if (!ether_addr_equal(dest, br->group_addr))
 		goto out;
 
 	buf = skb_pull(skb, 3);

net/bridge/br_stp_if.c

@@ -178,7 +178,7 @@ void br_stp_set_enabled(struct net_bridge *br, unsigned long val)
 /* called under bridge lock */
 void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr)
 {
-	/* should be aligned on 2 bytes for compare_ether_addr() */
+	/* should be aligned on 2 bytes for ether_addr_equal() */
 	unsigned short oldaddr_aligned[ETH_ALEN >> 1];
 	unsigned char *oldaddr = (unsigned char *)oldaddr_aligned;
 	struct net_bridge_port *p;
@@ -191,12 +191,11 @@ void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr)
 	memcpy(br->dev->dev_addr, addr, ETH_ALEN);
 
 	list_for_each_entry(p, &br->port_list, list) {
-		if (!compare_ether_addr(p->designated_bridge.addr, oldaddr))
+		if (ether_addr_equal(p->designated_bridge.addr, oldaddr))
 			memcpy(p->designated_bridge.addr, addr, ETH_ALEN);
 
-		if (!compare_ether_addr(p->designated_root.addr, oldaddr))
+		if (ether_addr_equal(p->designated_root.addr, oldaddr))
 			memcpy(p->designated_root.addr, addr, ETH_ALEN);
-
 	}
 
 	br_configuration_update(br);
@@ -205,7 +204,7 @@ void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr)
 		br_become_root_bridge(br);
 }
 
-/* should be aligned on 2 bytes for compare_ether_addr() */
+/* should be aligned on 2 bytes for ether_addr_equal() */
 static const unsigned short br_mac_zero_aligned[ETH_ALEN >> 1];
 
 /* called under bridge lock */
@@ -227,7 +226,7 @@ bool br_stp_recalculate_bridge_id(struct net_bridge *br)
 
 	}
 
-	if (compare_ether_addr(br->bridge_id.addr, addr) == 0)
+	if (ether_addr_equal(br->bridge_id.addr, addr))
 		return false;	/* no change */
 
 	br_stp_change_bridge_id(br, addr);

net/bridge/netfilter/ebt_stp.c

@@ -164,8 +164,8 @@ static int ebt_stp_mt_check(const struct xt_mtchk_param *par)
 	    !(info->bitmask & EBT_STP_MASK))
 		return -EINVAL;
 	/* Make sure the match only receives stp frames */
-	if (compare_ether_addr(e->destmac, bridge_ula) ||
+	if (!ether_addr_equal(e->destmac, bridge_ula) ||
-	    compare_ether_addr(e->destmsk, msk) || !(e->bitmask & EBT_DESTMAC))
+	    !ether_addr_equal(e->destmsk, msk) || !(e->bitmask & EBT_DESTMAC))
 		return -EINVAL;
 
 	return 0;

net/dsa/slave.c

@@ -66,7 +66,7 @@ static int dsa_slave_open(struct net_device *dev)
 	if (!(master->flags & IFF_UP))
 		return -ENETDOWN;
 
-	if (compare_ether_addr(dev->dev_addr, master->dev_addr)) {
+	if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) {
 		err = dev_uc_add(master, dev->dev_addr);
 		if (err < 0)
 			goto out;
@@ -89,7 +89,7 @@ clear_allmulti:
 	if (dev->flags & IFF_ALLMULTI)
 		dev_set_allmulti(master, -1);
 del_unicast:
-	if (compare_ether_addr(dev->dev_addr, master->dev_addr))
+	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
 		dev_uc_del(master, dev->dev_addr);
 out:
 	return err;
@@ -107,7 +107,7 @@ static int dsa_slave_close(struct net_device *dev)
 	if (dev->flags & IFF_PROMISC)
 		dev_set_promiscuity(master, -1);
 
-	if (compare_ether_addr(dev->dev_addr, master->dev_addr))
+	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
 		dev_uc_del(master, dev->dev_addr);
 
 	return 0;
@@ -146,13 +146,13 @@ static int dsa_slave_set_mac_address(struct net_device *dev, void *a)
 	if (!(dev->flags & IFF_UP))
 		goto out;
 
-	if (compare_ether_addr(addr->sa_data, master->dev_addr)) {
+	if (!ether_addr_equal(addr->sa_data, master->dev_addr)) {
 		err = dev_uc_add(master, addr->sa_data);
 		if (err < 0)
 			return err;
 	}
 
-	if (compare_ether_addr(dev->dev_addr, master->dev_addr))
+	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
 		dev_uc_del(master, dev->dev_addr);
 
 out:

net/ipv6/netfilter/ip6_tables.c

@@ -133,7 +133,7 @@ ip6_packet_match(const struct sk_buff *skb,
 		int protohdr;
 		unsigned short _frag_off;
 
-		protohdr = ipv6_find_hdr(skb, protoff, -1, &_frag_off);
+		protohdr = ipv6_find_hdr(skb, protoff, -1, &_frag_off, NULL);
 		if (protohdr < 0) {
 			if (_frag_off == 0)
 				*hotdrop = true;
@@ -362,6 +362,7 @@ ip6t_do_table(struct sk_buff *skb,
 		const struct xt_entry_match *ematch;
 
 		IP_NF_ASSERT(e);
+		acpar.thoff = 0;
 		if (!ip6_packet_match(skb, indev, outdev, &e->ipv6,
 		    &acpar.thoff, &acpar.fragoff, &acpar.hotdrop)) {
  no_match:
@@ -2278,6 +2279,10 @@ static void __exit ip6_tables_fini(void)
  * if target < 0. "last header" is transport protocol header, ESP, or
  * "No next header".
  *
+ * Note that *offset is used as input/output parameter. an if it is not zero,
+ * then it must be a valid offset to an inner IPv6 header. This can be used
+ * to explore inner IPv6 header, eg. ICMPv6 error messages.
+ *
  * If target header is found, its offset is set in *offset and return protocol
  * number. Otherwise, return -1.
  *
@@ -2289,17 +2294,33 @@ static void __exit ip6_tables_fini(void)
  * *offset is meaningless and fragment offset is stored in *fragoff if fragoff
  * isn't NULL.
  *
+ * if flags is not NULL and it's a fragment, then the frag flag IP6T_FH_F_FRAG
+ * will be set. If it's an AH header, the IP6T_FH_F_AUTH flag is set and
+ * target < 0, then this function will stop at the AH header.
  */
 int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
-		  int target, unsigned short *fragoff)
+		  int target, unsigned short *fragoff, int *flags)
 {
 	unsigned int start = skb_network_offset(skb) + sizeof(struct ipv6hdr);
 	u8 nexthdr = ipv6_hdr(skb)->nexthdr;
-	unsigned int len = skb->len - start;
+	unsigned int len;
 
 	if (fragoff)
 		*fragoff = 0;
 
+	if (*offset) {
+		struct ipv6hdr _ip6, *ip6;
+
+		ip6 = skb_header_pointer(skb, *offset, sizeof(_ip6), &_ip6);
+		if (!ip6 || (ip6->version != 6)) {
+			printk(KERN_ERR "IPv6 header not found\n");
+			return -EBADMSG;
+		}
+		start = *offset + sizeof(struct ipv6hdr);
+		nexthdr = ip6->nexthdr;
+	}
+	len = skb->len - start;
+
 	while (nexthdr != target) {
 		struct ipv6_opt_hdr _hdr, *hp;
 		unsigned int hdrlen;
@@ -2316,6 +2337,9 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
 		if (nexthdr == NEXTHDR_FRAGMENT) {
 			unsigned short _frag_off;
 			__be16 *fp;
+
+			if (flags)	/* Indicate that this is a fragment */
+				*flags |= IP6T_FH_F_FRAG;
 			fp = skb_header_pointer(skb,
 						start+offsetof(struct frag_hdr,
 							       frag_off),
@@ -2336,9 +2360,11 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
 				return -ENOENT;
 			}
 			hdrlen = 8;
-		} else if (nexthdr == NEXTHDR_AUTH)
+		} else if (nexthdr == NEXTHDR_AUTH) {
+			if (flags && (*flags & IP6T_FH_F_AUTH) && (target < 0))
+				break;
 			hdrlen = (hp->hdrlen + 2) << 2;
-		else
+		} else
 			hdrlen = ipv6_optlen(hp);
 
 		nexthdr = hp->nexthdr;

net/ipv6/netfilter/ip6t_ah.c

@@ -41,11 +41,11 @@ static bool ah_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 	struct ip_auth_hdr _ah;
 	const struct ip_auth_hdr *ah;
 	const struct ip6t_ah *ahinfo = par->matchinfo;
-	unsigned int ptr;
+	unsigned int ptr = 0;
 	unsigned int hdrlen = 0;
 	int err;
 
-	err = ipv6_find_hdr(skb, &ptr, NEXTHDR_AUTH, NULL);
+	err = ipv6_find_hdr(skb, &ptr, NEXTHDR_AUTH, NULL, NULL);
 	if (err < 0) {
 		if (err != -ENOENT)
 			par->hotdrop = true;

net/ipv6/netfilter/ip6t_frag.c

@@ -40,10 +40,10 @@ frag_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 	struct frag_hdr _frag;
 	const struct frag_hdr *fh;
 	const struct ip6t_frag *fraginfo = par->matchinfo;
-	unsigned int ptr;
+	unsigned int ptr = 0;
 	int err;
 
-	err = ipv6_find_hdr(skb, &ptr, NEXTHDR_FRAGMENT, NULL);
+	err = ipv6_find_hdr(skb, &ptr, NEXTHDR_FRAGMENT, NULL, NULL);
 	if (err < 0) {
 		if (err != -ENOENT)
 			par->hotdrop = true;

net/ipv6/netfilter/ip6t_hbh.c

@@ -50,7 +50,7 @@ hbh_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 	const struct ipv6_opt_hdr *oh;
 	const struct ip6t_opts *optinfo = par->matchinfo;
 	unsigned int temp;
-	unsigned int ptr;
+	unsigned int ptr = 0;
 	unsigned int hdrlen = 0;
 	bool ret = false;
 	u8 _opttype;
@@ -62,7 +62,7 @@ hbh_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 
 	err = ipv6_find_hdr(skb, &ptr,
 			    (par->match == &hbh_mt6_reg[0]) ?
-			    NEXTHDR_HOP : NEXTHDR_DEST, NULL);
+			    NEXTHDR_HOP : NEXTHDR_DEST, NULL, NULL);
 	if (err < 0) {
 		if (err != -ENOENT)
 			par->hotdrop = true;

net/ipv6/netfilter/ip6t_rt.c

@@ -42,14 +42,14 @@ static bool rt_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 	const struct ipv6_rt_hdr *rh;
 	const struct ip6t_rt *rtinfo = par->matchinfo;
 	unsigned int temp;
-	unsigned int ptr;
+	unsigned int ptr = 0;
 	unsigned int hdrlen = 0;
 	bool ret = false;
 	struct in6_addr _addr;
 	const struct in6_addr *ap;
 	int err;
 
-	err = ipv6_find_hdr(skb, &ptr, NEXTHDR_ROUTING, NULL);
+	err = ipv6_find_hdr(skb, &ptr, NEXTHDR_ROUTING, NULL, NULL);
 	if (err < 0) {
 		if (err != -ENOENT)
 			par->hotdrop = true;

net/mac80211/cfg.c

@@ -919,7 +919,7 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 	} else
 		sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	if (compare_ether_addr(mac, sdata->vif.addr) == 0)
+	if (ether_addr_equal(mac, sdata->vif.addr))
 		return -EINVAL;
 
 	if (is_multicast_ether_addr(mac))

net/mac80211/ibss.c

@@ -66,7 +66,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	skb_reset_tail_pointer(skb);
 	skb_reserve(skb, sdata->local->hw.extra_tx_headroom);
 
-	if (compare_ether_addr(ifibss->bssid, bssid))
+	if (!ether_addr_equal(ifibss->bssid, bssid))
 		sta_info_flush(sdata->local, sdata);
 
 	/* if merging, indicate to driver that we leave the old IBSS */
@@ -315,7 +315,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 		return NULL;
 	}
 
-	if (compare_ether_addr(bssid, sdata->u.ibss.bssid)) {
+	if (!ether_addr_equal(bssid, sdata->u.ibss.bssid)) {
 		rcu_read_lock();
 		return NULL;
 	}
@@ -401,7 +401,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		return;
 
 	if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
-	    compare_ether_addr(mgmt->bssid, sdata->u.ibss.bssid) == 0) {
+	    ether_addr_equal(mgmt->bssid, sdata->u.ibss.bssid)) {
 
 		rcu_read_lock();
 		sta = sta_info_get(sdata, mgmt->sa);
@@ -506,7 +506,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		goto put_bss;
 
 	/* same BSSID */
-	if (compare_ether_addr(cbss->bssid, sdata->u.ibss.bssid) == 0)
+	if (ether_addr_equal(cbss->bssid, sdata->u.ibss.bssid))
 		goto put_bss;
 
 	if (rx_status->flag & RX_FLAG_MACTIME_MPDU) {
@@ -591,7 +591,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	if (ifibss->state == IEEE80211_IBSS_MLME_SEARCH)
 		return;
 
-	if (compare_ether_addr(bssid, sdata->u.ibss.bssid))
+	if (!ether_addr_equal(bssid, sdata->u.ibss.bssid))
 		return;
 
 	sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
@@ -829,7 +829,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	if (!tx_last_beacon && is_multicast_ether_addr(mgmt->da))
 		return;
 
-	if (compare_ether_addr(mgmt->bssid, ifibss->bssid) != 0 &&
+	if (!ether_addr_equal(mgmt->bssid, ifibss->bssid) &&
 	    !is_broadcast_ether_addr(mgmt->bssid))
 		return;
 

net/mac80211/ieee80211_i.h

@@ -1195,7 +1195,7 @@ static inline struct ieee80211_local *hw_to_local(
 
 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 {
-	return compare_ether_addr(raddr, addr) == 0 ||
+	return ether_addr_equal(raddr, addr) ||
 	       is_broadcast_ether_addr(raddr);
 }
 

net/mac80211/iface.c

@@ -127,7 +127,7 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata,
 			 * The remaining checks are only performed for interfaces
 			 * with the same MAC address.
 			 */
-			if (compare_ether_addr(dev->dev_addr, ndev->dev_addr))
+			if (!ether_addr_equal(dev->dev_addr, ndev->dev_addr))
 				continue;
 
 			/*

net/mac80211/mesh.c

@@ -209,7 +209,7 @@ int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
 			kmem_cache_free(rm_cache, p);
 			--entries;
 		} else if ((seqnum == p->seqnum) &&
-			   (compare_ether_addr(sa, p->sa) == 0))
+			   (ether_addr_equal(sa, p->sa)))
 			return -1;
 	}
 
@@ -639,7 +639,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 
 	/* ignore ProbeResp to foreign address */
 	if (stype == IEEE80211_STYPE_PROBE_RESP &&
-	    compare_ether_addr(mgmt->da, sdata->vif.addr))
+	    !ether_addr_equal(mgmt->da, sdata->vif.addr))
 		return;
 
 	baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;

net/mac80211/mesh_hwmp.c

@@ -422,7 +422,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 		new_metric = MAX_METRIC;
 	exp_time = TU_TO_EXP_TIME(orig_lifetime);
 
-	if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0) {
+	if (ether_addr_equal(orig_addr, sdata->vif.addr)) {
 		/* This MP is the originator, we are not interested in this
 		 * frame, except for updating transmitter's path info.
 		 */
@@ -472,7 +472,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 
 	/* Update and check transmitter routing info */
 	ta = mgmt->sa;
-	if (compare_ether_addr(orig_addr, ta) == 0)
+	if (ether_addr_equal(orig_addr, ta))
 		fresh_info = false;
 	else {
 		fresh_info = true;
@@ -533,7 +533,7 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 
 	mhwmp_dbg("received PREQ from %pM", orig_addr);
 
-	if (compare_ether_addr(target_addr, sdata->vif.addr) == 0) {
+	if (ether_addr_equal(target_addr, sdata->vif.addr)) {
 		mhwmp_dbg("PREQ is for us");
 		forward = false;
 		reply = true;
@@ -631,7 +631,7 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,
 	mhwmp_dbg("received PREP from %pM", PREP_IE_ORIG_ADDR(prep_elem));
 
 	orig_addr = PREP_IE_ORIG_ADDR(prep_elem);
-	if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0)
+	if (ether_addr_equal(orig_addr, sdata->vif.addr))
 		/* destination, no forwarding required */
 		return;
 
@@ -709,7 +709,7 @@ static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,
 		spin_lock_bh(&mpath->state_lock);
 		sta = next_hop_deref_protected(mpath);
 		if (mpath->flags & MESH_PATH_ACTIVE &&
-		    compare_ether_addr(ta, sta->sta.addr) == 0 &&
+		    ether_addr_equal(ta, sta->sta.addr) &&
 		    (!(mpath->flags & MESH_PATH_SN_VALID) ||
 		    SN_GT(target_sn, mpath->sn))) {
 			mpath->flags &= ~MESH_PATH_ACTIVE;
@@ -756,7 +756,7 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
 	metric = le32_to_cpu(rann->rann_metric);
 
 	/*  Ignore our own RANNs */
-	if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0)
+	if (ether_addr_equal(orig_addr, sdata->vif.addr))
 		return;
 
 	mhwmp_dbg("received RANN from %pM via neighbour %pM (is_gate=%d)",
@@ -1099,7 +1099,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 	if (time_after(jiffies,
 		       mpath->exp_time -
 		       msecs_to_jiffies(sdata->u.mesh.mshcfg.path_refresh_time)) &&
-	    !compare_ether_addr(sdata->vif.addr, hdr->addr4) &&
+	    ether_addr_equal(sdata->vif.addr, hdr->addr4) &&
 	    !(mpath->flags & MESH_PATH_RESOLVING) &&
 	    !(mpath->flags & MESH_PATH_FIXED))
 		mesh_queue_preq(mpath, PREQ_Q_F_START | PREQ_Q_F_REFRESH);

net/mac80211/mesh_pathtbl.c

@@ -348,7 +348,7 @@ static struct mesh_path *mpath_lookup(struct mesh_table *tbl, u8 *dst,
 	hlist_for_each_entry_rcu(node, n, bucket, list) {
 		mpath = node->mpath;
 		if (mpath->sdata == sdata &&
-				compare_ether_addr(dst, mpath->dst) == 0) {
+		    ether_addr_equal(dst, mpath->dst)) {
 			if (MPATH_EXPIRED(mpath)) {
 				spin_lock_bh(&mpath->state_lock);
 				mpath->flags &= ~MESH_PATH_ACTIVE;
@@ -517,7 +517,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
 	int err = 0;
 	u32 hash_idx;
 
-	if (compare_ether_addr(dst, sdata->vif.addr) == 0)
+	if (ether_addr_equal(dst, sdata->vif.addr))
 		/* never add ourselves as neighbours */
 		return -ENOTSUPP;
 
@@ -561,7 +561,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
 	hlist_for_each_entry(node, n, bucket, list) {
 		mpath = node->mpath;
 		if (mpath->sdata == sdata &&
-		    compare_ether_addr(dst, mpath->dst) == 0)
+		    ether_addr_equal(dst, mpath->dst))
 			goto err_exists;
 	}
 
@@ -652,7 +652,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
 	int err = 0;
 	u32 hash_idx;
 
-	if (compare_ether_addr(dst, sdata->vif.addr) == 0)
+	if (ether_addr_equal(dst, sdata->vif.addr))
 		/* never add ourselves as neighbours */
 		return -ENOTSUPP;
 
@@ -690,7 +690,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
 	hlist_for_each_entry(node, n, bucket, list) {
 		mpath = node->mpath;
 		if (mpath->sdata == sdata &&
-		    compare_ether_addr(dst, mpath->dst) == 0)
+		    ether_addr_equal(dst, mpath->dst))
 			goto err_exists;
 	}
 
@@ -884,7 +884,7 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata)
 	hlist_for_each_entry(node, n, bucket, list) {
 		mpath = node->mpath;
 		if (mpath->sdata == sdata &&
-		    compare_ether_addr(addr, mpath->dst) == 0) {
+		    ether_addr_equal(addr, mpath->dst)) {
 			__mesh_path_del(tbl, node);
 			goto enddel;
 		}

net/mac80211/mlme.c

@@ -1776,7 +1776,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 
 	memcpy(bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN);
 
-	if (compare_ether_addr(bssid, mgmt->bssid))
+	if (!ether_addr_equal(bssid, mgmt->bssid))
 		return RX_MGMT_NONE;
 
 	auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
@@ -1853,7 +1853,7 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 		return RX_MGMT_NONE;
 
 	if (!ifmgd->associated ||
-	    compare_ether_addr(mgmt->bssid, ifmgd->associated->bssid))
+	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
 		return RX_MGMT_NONE;
 
 	bssid = ifmgd->associated->bssid;
@@ -1886,7 +1886,7 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 		return RX_MGMT_NONE;
 
 	if (!ifmgd->associated ||
-	    compare_ether_addr(mgmt->bssid, ifmgd->associated->bssid))
+	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
 		return RX_MGMT_NONE;
 
 	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
@@ -2113,7 +2113,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 
 	if (!assoc_data)
 		return RX_MGMT_NONE;
-	if (compare_ether_addr(assoc_data->bss->bssid, mgmt->bssid))
+	if (!ether_addr_equal(assoc_data->bss->bssid, mgmt->bssid))
 		return RX_MGMT_NONE;
 
 	/*
@@ -2193,8 +2193,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	bool need_ps = false;
 
 	if (sdata->u.mgd.associated &&
-	    compare_ether_addr(mgmt->bssid, sdata->u.mgd.associated->bssid)
+	    ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) {
-	    == 0) {
 		bss = (void *)sdata->u.mgd.associated->priv;
 		/* not previously set so we may need to recalc */
 		need_ps = !bss->dtim_period;
@@ -2249,7 +2248,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 
 	ASSERT_MGD_MTX(ifmgd);
 
-	if (compare_ether_addr(mgmt->da, sdata->vif.addr))
+	if (!ether_addr_equal(mgmt->da, sdata->vif.addr))
 		return; /* ignore ProbeResp to foreign address */
 
 	baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
@@ -2262,12 +2261,11 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
 
 	if (ifmgd->associated &&
-	    compare_ether_addr(mgmt->bssid, ifmgd->associated->bssid) == 0)
+	    ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
 		ieee80211_reset_ap_probe(sdata);
 
 	if (ifmgd->auth_data && !ifmgd->auth_data->bss->proberesp_ies &&
-	    compare_ether_addr(mgmt->bssid, ifmgd->auth_data->bss->bssid)
+	    ether_addr_equal(mgmt->bssid, ifmgd->auth_data->bss->bssid)) {
-	    == 0) {
 		/* got probe response, continue with auth */
 		printk(KERN_DEBUG "%s: direct probe responded\n", sdata->name);
 		ifmgd->auth_data->tries = 0;
@@ -2324,8 +2322,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		return;
 
 	if (ifmgd->assoc_data && !ifmgd->assoc_data->have_beacon &&
-	    compare_ether_addr(mgmt->bssid, ifmgd->assoc_data->bss->bssid)
+	    ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) {
-	    == 0) {
 		ieee802_11_parse_elems(mgmt->u.beacon.variable,
 				       len - baselen, &elems);
 
@@ -2340,7 +2337,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (!ifmgd->associated ||
-	    compare_ether_addr(mgmt->bssid, ifmgd->associated->bssid))
+	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
 		return;
 	bssid = ifmgd->associated->bssid;
 
@@ -3166,7 +3163,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
 			return err;
 		}
 	} else
-		WARN_ON_ONCE(compare_ether_addr(ifmgd->bssid, cbss->bssid));
+		WARN_ON_ONCE(!ether_addr_equal(ifmgd->bssid, cbss->bssid));
 
 	return 0;
 }
@@ -3306,7 +3303,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 		bool match;
 
 		/* keep sta info, bssid if matching */
-		match = compare_ether_addr(ifmgd->bssid, req->bss->bssid) == 0;
+		match = ether_addr_equal(ifmgd->bssid, req->bss->bssid);
 		ieee80211_destroy_auth_data(sdata, match);
 	}
 
@@ -3466,7 +3463,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 	       sdata->name, req->bssid, req->reason_code);
 
 	if (ifmgd->associated &&
-	    compare_ether_addr(ifmgd->associated->bssid, req->bssid) == 0)
+	    ether_addr_equal(ifmgd->associated->bssid, req->bssid))
 		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
 				       req->reason_code, true, frame_buf);
 	else

net/mac80211/rx.c

@@ -492,12 +492,12 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 			if (ieee80211_has_tods(hdr->frame_control) ||
 				!ieee80211_has_fromds(hdr->frame_control))
 				return RX_DROP_MONITOR;
-			if (compare_ether_addr(hdr->addr3, dev_addr) == 0)
+			if (ether_addr_equal(hdr->addr3, dev_addr))
 				return RX_DROP_MONITOR;
 		} else {
 			if (!ieee80211_has_a4(hdr->frame_control))
 				return RX_DROP_MONITOR;
-			if (compare_ether_addr(hdr->addr4, dev_addr) == 0)
+			if (ether_addr_equal(hdr->addr4, dev_addr))
 				return RX_DROP_MONITOR;
 		}
 	}
@@ -1275,7 +1275,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 	if (rx->sdata->vif.type == NL80211_IFTYPE_ADHOC) {
 		u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len,
 						NL80211_IFTYPE_ADHOC);
-		if (compare_ether_addr(bssid, rx->sdata->u.ibss.bssid) == 0) {
+		if (ether_addr_equal(bssid, rx->sdata->u.ibss.bssid)) {
 			sta->last_rx = jiffies;
 			if (ieee80211_is_data(hdr->frame_control)) {
 				sta->last_rx_rate_idx = status->rate_idx;
@@ -1438,8 +1438,8 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
 		 */
 		if (((hdr->frame_control ^ f_hdr->frame_control) &
 		     cpu_to_le16(IEEE80211_FCTL_FTYPE)) ||
-		    compare_ether_addr(hdr->addr1, f_hdr->addr1) != 0 ||
+		    !ether_addr_equal(hdr->addr1, f_hdr->addr1) ||
-		    compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0)
+		    !ether_addr_equal(hdr->addr2, f_hdr->addr2))
 			continue;
 
 		if (time_after(jiffies, entry->first_frag_time + 2 * HZ)) {
@@ -1714,8 +1714,8 @@ static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx, __le16 fc)
 	 * of whether the frame was encrypted or not.
 	 */
 	if (ehdr->h_proto == rx->sdata->control_port_protocol &&
-	    (compare_ether_addr(ehdr->h_dest, rx->sdata->vif.addr) == 0 ||
+	    (ether_addr_equal(ehdr->h_dest, rx->sdata->vif.addr) ||
-	     compare_ether_addr(ehdr->h_dest, pae_group_addr) == 0))
+	     ether_addr_equal(ehdr->h_dest, pae_group_addr)))
 		return true;
 
 	if (ieee80211_802_1x_port_control(rx) ||
@@ -1925,7 +1925,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			mpp_path_add(proxied_addr, mpp_addr, sdata);
 		} else {
 			spin_lock_bh(&mppath->state_lock);
-			if (compare_ether_addr(mppath->mpp, mpp_addr) != 0)
+			if (!ether_addr_equal(mppath->mpp, mpp_addr))
 				memcpy(mppath->mpp, mpp_addr, ETH_ALEN);
 			spin_unlock_bh(&mppath->state_lock);
 		}
@@ -1934,7 +1934,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 
 	/* Frame has reached destination.  Don't forward */
 	if (!is_multicast_ether_addr(hdr->addr1) &&
-	    compare_ether_addr(sdata->vif.addr, hdr->addr3) == 0)
+	    ether_addr_equal(sdata->vif.addr, hdr->addr3))
 		return RX_CONTINUE;
 
 	q = ieee80211_select_queue_80211(local, skb, hdr);
@@ -2122,13 +2122,13 @@ static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *resp;
 
-	if (compare_ether_addr(mgmt->da, sdata->vif.addr) != 0) {
+	if (!ether_addr_equal(mgmt->da, sdata->vif.addr)) {
 		/* Not to own unicast address */
 		return;
 	}
 
-	if (compare_ether_addr(mgmt->sa, sdata->u.mgd.bssid) != 0 ||
+	if (!ether_addr_equal(mgmt->sa, sdata->u.mgd.bssid) ||
-	    compare_ether_addr(mgmt->bssid, sdata->u.mgd.bssid) != 0) {
+	    !ether_addr_equal(mgmt->bssid, sdata->u.mgd.bssid)) {
 		/* Not from the current AP or not associated yet. */
 		return;
 	}
@@ -2338,7 +2338,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 			if (sdata->vif.type != NL80211_IFTYPE_STATION)
 				break;
 
-			if (compare_ether_addr(mgmt->bssid, sdata->u.mgd.bssid))
+			if (!ether_addr_equal(mgmt->bssid, sdata->u.mgd.bssid))
 				break;
 
 			goto queue;
@@ -2772,7 +2772,7 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
 		if (!bssid && !sdata->u.mgd.use_4addr)
 			return 0;
 		if (!multicast &&
-		    compare_ether_addr(sdata->vif.addr, hdr->addr1) != 0) {
+		    !ether_addr_equal(sdata->vif.addr, hdr->addr1)) {
 			if (!(sdata->dev->flags & IFF_PROMISC) ||
 			    sdata->u.mgd.use_4addr)
 				return 0;
@@ -2790,8 +2790,7 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
 				return 0;
 			status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
 		} else if (!multicast &&
-			   compare_ether_addr(sdata->vif.addr,
+			   !ether_addr_equal(sdata->vif.addr, hdr->addr1)) {
-					      hdr->addr1) != 0) {
 			if (!(sdata->dev->flags & IFF_PROMISC))
 				return 0;
 			status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
@@ -2807,8 +2806,7 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
 		break;
 	case NL80211_IFTYPE_MESH_POINT:
 		if (!multicast &&
-		    compare_ether_addr(sdata->vif.addr,
+		    !ether_addr_equal(sdata->vif.addr, hdr->addr1)) {
-				       hdr->addr1) != 0) {
 			if (!(sdata->dev->flags & IFF_PROMISC))
 				return 0;
 
@@ -2818,8 +2816,7 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_AP:
 		if (!bssid) {
-			if (compare_ether_addr(sdata->vif.addr,
+			if (!ether_addr_equal(sdata->vif.addr, hdr->addr1))
-					       hdr->addr1))
 				return 0;
 		} else if (!ieee80211_bssid_match(bssid,
 					sdata->vif.addr)) {
@@ -2841,7 +2838,7 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
 	case NL80211_IFTYPE_WDS:
 		if (bssid || !ieee80211_is_data(hdr->frame_control))
 			return 0;
-		if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
+		if (!ether_addr_equal(sdata->u.wds.remote_addr, hdr->addr2))
 			return 0;
 		break;
 	default:

net/mac80211/scan.c

@@ -194,7 +194,7 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 	presp = ieee80211_is_probe_resp(fc);
 	if (presp) {
 		/* ignore ProbeResp to foreign address */
-		if (compare_ether_addr(mgmt->da, sdata->vif.addr))
+		if (!ether_addr_equal(mgmt->da, sdata->vif.addr))
 			return RX_DROP_MONITOR;
 
 		presp = true;

net/mac80211/sta_info.c

@@ -102,7 +102,7 @@ struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
 				    lockdep_is_held(&local->sta_mtx));
 	while (sta) {
 		if (sta->sdata == sdata &&
-		    compare_ether_addr(sta->sta.addr, addr) == 0)
+		    ether_addr_equal(sta->sta.addr, addr))
 			break;
 		sta = rcu_dereference_check(sta->hnext,
 					    lockdep_is_held(&local->sta_mtx));
@@ -125,7 +125,7 @@ struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata,
 	while (sta) {
 		if ((sta->sdata == sdata ||
 		     (sta->sdata->bss && sta->sdata->bss == sdata->bss)) &&
-		    compare_ether_addr(sta->sta.addr, addr) == 0)
+		    ether_addr_equal(sta->sta.addr, addr))
 			break;
 		sta = rcu_dereference_check(sta->hnext,
 					    lockdep_is_held(&local->sta_mtx));
@@ -302,7 +302,7 @@ static int sta_info_insert_check(struct sta_info *sta)
 	if (unlikely(!ieee80211_sdata_running(sdata)))
 		return -ENETDOWN;
 
-	if (WARN_ON(compare_ether_addr(sta->sta.addr, sdata->vif.addr) == 0 ||
+	if (WARN_ON(ether_addr_equal(sta->sta.addr, sdata->vif.addr) ||
 		    is_multicast_ether_addr(sta->sta.addr)))
 		return -EINVAL;
 
@@ -912,7 +912,7 @@ struct ieee80211_sta *ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw,
 	 */
 	for_each_sta_info(hw_to_local(hw), addr, sta, nxt) {
 		if (localaddr &&
-		    compare_ether_addr(sta->sdata->vif.addr, localaddr) != 0)
+		    !ether_addr_equal(sta->sdata->vif.addr, localaddr))
 			continue;
 		if (!sta->uploaded)
 			return NULL;

net/mac80211/sta_info.h

@@ -501,7 +501,7 @@ void for_each_sta_info_type_check(struct ieee80211_local *local,
 		nxt = _sta ? rcu_dereference(_sta->hnext) : NULL	\
 	     )								\
 	/* compare address and run code only if it matches */		\
-	if (compare_ether_addr(_sta->sta.addr, (_addr)) == 0)
+	if (ether_addr_equal(_sta->sta.addr, (_addr)))
 
 /*
  * Get STA info by index, BROKEN!

net/mac80211/status.c

@@ -384,7 +384,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 
 	for_each_sta_info(local, hdr->addr1, sta, tmp) {
 		/* skip wrong virtual interface */
-		if (compare_ether_addr(hdr->addr2, sta->sdata->vif.addr))
+		if (!ether_addr_equal(hdr->addr2, sta->sdata->vif.addr))
 			continue;
 
 		if (info->flags & IEEE80211_TX_STATUS_EOSP)

net/mac80211/tx.c

@@ -1665,7 +1665,7 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
 	    skb->len >= len_rthdr + hdrlen + sizeof(rfc1042_header) + 2) {
 		u8 *payload = (u8 *)hdr + hdrlen;
 
-		if (compare_ether_addr(payload, rfc1042_header) == 0)
+		if (ether_addr_equal(payload, rfc1042_header))
 			skb->protocol = cpu_to_be16((payload[6] << 8) |
 						    payload[7]);
 	}
@@ -1698,7 +1698,7 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
 		    tmp_sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 		    tmp_sdata->vif.type == NL80211_IFTYPE_WDS)
 			continue;
-		if (compare_ether_addr(tmp_sdata->vif.addr, hdr->addr2) == 0) {
+		if (ether_addr_equal(tmp_sdata->vif.addr, hdr->addr2)) {
 			sdata = tmp_sdata;
 			break;
 		}
@@ -1815,9 +1815,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		 * is being proxied by a portal (i.e. portal address
 		 * differs from proxied address)
 		 */
-		if (compare_ether_addr(sdata->vif.addr,
+		if (ether_addr_equal(sdata->vif.addr, skb->data + ETH_ALEN) &&
-				       skb->data + ETH_ALEN) == 0 &&
+		    !(mppath && !ether_addr_equal(mppath->mpp, skb->data))) {
-		    !(mppath && compare_ether_addr(mppath->mpp, skb->data))) {
 			hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
 					skb->data, skb->data + ETH_ALEN);
 			rcu_read_unlock();
@@ -1964,7 +1963,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	if (unlikely(!ieee80211_vif_is_mesh(&sdata->vif) &&
 		     !is_multicast_ether_addr(hdr.addr1) && !authorized &&
 		     (cpu_to_be16(ethertype) != sdata->control_port_protocol ||
-		      compare_ether_addr(sdata->vif.addr, skb->data + ETH_ALEN)))) {
+		      !ether_addr_equal(sdata->vif.addr, skb->data + ETH_ALEN)))) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 		if (net_ratelimit())
 			printk(KERN_DEBUG "%s: dropped frame to %pM"

net/netfilter/Kconfig

@@ -509,6 +509,21 @@ config NETFILTER_XT_TARGET_HL
 	since you can easily create immortal packets that loop
 	forever on the network.
 
+config NETFILTER_XT_TARGET_HMARK
+	tristate '"HMARK" target support'
+	depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
+	depends on NETFILTER_ADVANCED
+	---help---
+	This option adds the "HMARK" target.
+
+	The target allows you to create rules in the "raw" and "mangle" tables
+	which set the skbuff mark by means of hash calculation within a given
+	range. The nfmark can influence the routing method (see "Use netfilter
+	MARK value as routing key") and can also be used by other subsystems to
+	change their behaviour.
+
+	To compile it as a module, choose M here. If unsure, say N.
+
 config NETFILTER_XT_TARGET_IDLETIMER
 	tristate  "IDLETIMER target support"
 	depends on NETFILTER_ADVANCED

net/netfilter/Makefile

@@ -59,6 +59,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSECMARK) += xt_CONNSECMARK.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_CT) += xt_CT.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_HL) += xt_HL.o
+obj-$(CONFIG_NETFILTER_XT_TARGET_HMARK) += xt_HMARK.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_LOG) += xt_LOG.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_NFLOG) += xt_NFLOG.o

net/netfilter/ipset/ip_set_bitmap_ipmac.c

@@ -111,7 +111,7 @@ bitmap_ipmac_test(struct ip_set *set, void *value, u32 timeout, u32 flags)
 		return -EAGAIN;
 	case MAC_FILLED:
 		return data->ether == NULL ||
-		       compare_ether_addr(data->ether, elem->ether) == 0;
+		       ether_addr_equal(data->ether, elem->ether);
 	}
 	return 0;
 }
@@ -225,7 +225,7 @@ bitmap_ipmac_ttest(struct ip_set *set, void *value, u32 timeout, u32 flags)
 		return -EAGAIN;
 	case MAC_FILLED:
 		return (data->ether == NULL ||
-			compare_ether_addr(data->ether, elem->ether) == 0) &&
+			ether_addr_equal(data->ether, elem->ether)) &&
 		       !bitmap_expired(map, data->id);
 	}
 	return 0;

net/netfilter/xt_HMARK.c

@@ -0,0 +1,362 @@
+/*
+ * xt_HMARK - Netfilter module to set mark by means of hashing
+ *
+ * (C) 2012 by Hans Schillstrom <hans.schillstrom@ericsson.com>
+ * (C) 2012 by Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/icmp.h>
+
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_HMARK.h>
+
+#include <net/ip.h>
+#if IS_ENABLED(CONFIG_NF_CONNTRACK)
+#include <net/netfilter/nf_conntrack.h>
+#endif
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+#include <net/ipv6.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+#endif
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Hans Schillstrom <hans.schillstrom@ericsson.com>");
+MODULE_DESCRIPTION("Xtables: packet marking using hash calculation");
+MODULE_ALIAS("ipt_HMARK");
+MODULE_ALIAS("ip6t_HMARK");
+
+struct hmark_tuple {
+	u32			src;
+	u32			dst;
+	union hmark_ports	uports;
+	uint8_t			proto;
+};
+
+static inline u32 hmark_addr6_mask(const __u32 *addr32, const __u32 *mask)
+{
+	return (addr32[0] & mask[0]) ^
+	       (addr32[1] & mask[1]) ^
+	       (addr32[2] & mask[2]) ^
+	       (addr32[3] & mask[3]);
+}
+
+static inline u32
+hmark_addr_mask(int l3num, const __u32 *addr32, const __u32 *mask)
+{
+	switch (l3num) {
+	case AF_INET:
+		return *addr32 & *mask;
+	case AF_INET6:
+		return hmark_addr6_mask(addr32, mask);
+	}
+	return 0;
+}
+
+static int
+hmark_ct_set_htuple(const struct sk_buff *skb, struct hmark_tuple *t,
+		    const struct xt_hmark_info *info)
+{
+#if IS_ENABLED(CONFIG_NF_CONNTRACK)
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	struct nf_conntrack_tuple *otuple;
+	struct nf_conntrack_tuple *rtuple;
+
+	if (ct == NULL || nf_ct_is_untracked(ct))
+		return -1;
+
+	otuple = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
+	rtuple = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
+
+	t->src = hmark_addr_mask(otuple->src.l3num, otuple->src.u3.all,
+				 info->src_mask.all);
+	t->dst = hmark_addr_mask(otuple->src.l3num, rtuple->src.u3.all,
+				 info->dst_mask.all);
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3))
+		return 0;
+
+	t->proto = nf_ct_protonum(ct);
+	if (t->proto != IPPROTO_ICMP) {
+		t->uports.p16.src = otuple->src.u.all;
+		t->uports.p16.dst = rtuple->src.u.all;
+		t->uports.v32 = (t->uports.v32 & info->port_mask.v32) |
+				info->port_set.v32;
+		if (t->uports.p16.dst < t->uports.p16.src)
+			swap(t->uports.p16.dst, t->uports.p16.src);
+	}
+
+	return 0;
+#else
+	return -1;
+#endif
+}
+
+static inline u32
+hmark_hash(struct hmark_tuple *t, const struct xt_hmark_info *info)
+{
+	u32 hash;
+
+	if (t->dst < t->src)
+		swap(t->src, t->dst);
+
+	hash = jhash_3words(t->src, t->dst, t->uports.v32, info->hashrnd);
+	hash = hash ^ (t->proto & info->proto_mask);
+
+	return (hash % info->hmodulus) + info->hoffset;
+}
+
+static void
+hmark_set_tuple_ports(const struct sk_buff *skb, unsigned int nhoff,
+		      struct hmark_tuple *t, const struct xt_hmark_info *info)
+{
+	int protoff;
+
+	protoff = proto_ports_offset(t->proto);
+	if (protoff < 0)
+		return;
+
+	nhoff += protoff;
+	if (skb_copy_bits(skb, nhoff, &t->uports, sizeof(t->uports)) < 0)
+		return;
+
+	t->uports.v32 = (t->uports.v32 & info->port_mask.v32) |
+			info->port_set.v32;
+
+	if (t->uports.p16.dst < t->uports.p16.src)
+		swap(t->uports.p16.dst, t->uports.p16.src);
+}
+
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+static int get_inner6_hdr(const struct sk_buff *skb, int *offset)
+{
+	struct icmp6hdr *icmp6h, _ih6;
+
+	icmp6h = skb_header_pointer(skb, *offset, sizeof(_ih6), &_ih6);
+	if (icmp6h == NULL)
+		return 0;
+
+	if (icmp6h->icmp6_type && icmp6h->icmp6_type < 128) {
+		*offset += sizeof(struct icmp6hdr);
+		return 1;
+	}
+	return 0;
+}
+
+static int
+hmark_pkt_set_htuple_ipv6(const struct sk_buff *skb, struct hmark_tuple *t,
+			  const struct xt_hmark_info *info)
+{
+	struct ipv6hdr *ip6, _ip6;
+	int flag = IP6T_FH_F_AUTH;
+	unsigned int nhoff = 0;
+	u16 fragoff = 0;
+	int nexthdr;
+
+	ip6 = (struct ipv6hdr *) (skb->data + skb_network_offset(skb));
+	nexthdr = ipv6_find_hdr(skb, &nhoff, -1, &fragoff, &flag);
+	if (nexthdr < 0)
+		return 0;
+	/* No need to check for icmp errors on fragments */
+	if ((flag & IP6T_FH_F_FRAG) || (nexthdr != IPPROTO_ICMPV6))
+		goto noicmp;
+	/* Use inner header in case of ICMP errors */
+	if (get_inner6_hdr(skb, &nhoff)) {
+		ip6 = skb_header_pointer(skb, nhoff, sizeof(_ip6), &_ip6);
+		if (ip6 == NULL)
+			return -1;
+		/* If AH present, use SPI like in ESP. */
+		flag = IP6T_FH_F_AUTH;
+		nexthdr = ipv6_find_hdr(skb, &nhoff, -1, &fragoff, &flag);
+		if (nexthdr < 0)
+			return -1;
+	}
+noicmp:
+	t->src = hmark_addr6_mask(ip6->saddr.s6_addr32, info->src_mask.all);
+	t->dst = hmark_addr6_mask(ip6->daddr.s6_addr32, info->dst_mask.all);
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3))
+		return 0;
+
+	t->proto = nexthdr;
+	if (t->proto == IPPROTO_ICMPV6)
+		return 0;
+
+	if (flag & IP6T_FH_F_FRAG)
+		return 0;
+
+	hmark_set_tuple_ports(skb, nhoff, t, info);
+	return 0;
+}
+
+static unsigned int
+hmark_tg_v6(struct sk_buff *skb, const struct xt_action_param *par)
+{
+	const struct xt_hmark_info *info = par->targinfo;
+	struct hmark_tuple t;
+
+	memset(&t, 0, sizeof(struct hmark_tuple));
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_CT)) {
+		if (hmark_ct_set_htuple(skb, &t, info) < 0)
+			return XT_CONTINUE;
+	} else {
+		if (hmark_pkt_set_htuple_ipv6(skb, &t, info) < 0)
+			return XT_CONTINUE;
+	}
+
+	skb->mark = hmark_hash(&t, info);
+	return XT_CONTINUE;
+}
+#endif
+
+static int get_inner_hdr(const struct sk_buff *skb, int iphsz, int *nhoff)
+{
+	const struct icmphdr *icmph;
+	struct icmphdr _ih;
+
+	/* Not enough header? */
+	icmph = skb_header_pointer(skb, *nhoff + iphsz, sizeof(_ih), &_ih);
+	if (icmph == NULL && icmph->type > NR_ICMP_TYPES)
+		return 0;
+
+	/* Error message? */
+	if (icmph->type != ICMP_DEST_UNREACH &&
+	    icmph->type != ICMP_SOURCE_QUENCH &&
+	    icmph->type != ICMP_TIME_EXCEEDED &&
+	    icmph->type != ICMP_PARAMETERPROB &&
+	    icmph->type != ICMP_REDIRECT)
+		return 0;
+
+	*nhoff += iphsz + sizeof(_ih);
+	return 1;
+}
+
+static int
+hmark_pkt_set_htuple_ipv4(const struct sk_buff *skb, struct hmark_tuple *t,
+			  const struct xt_hmark_info *info)
+{
+	struct iphdr *ip, _ip;
+	int nhoff = skb_network_offset(skb);
+
+	ip = (struct iphdr *) (skb->data + nhoff);
+	if (ip->protocol == IPPROTO_ICMP) {
+		/* Use inner header in case of ICMP errors */
+		if (get_inner_hdr(skb, ip->ihl * 4, &nhoff)) {
+			ip = skb_header_pointer(skb, nhoff, sizeof(_ip), &_ip);
+			if (ip == NULL)
+				return -1;
+		}
+	}
+
+	t->src = (__force u32) ip->saddr;
+	t->dst = (__force u32) ip->daddr;
+
+	t->src &= info->src_mask.ip;
+	t->dst &= info->dst_mask.ip;
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3))
+		return 0;
+
+	t->proto = ip->protocol;
+
+	/* ICMP has no ports, skip */
+	if (t->proto == IPPROTO_ICMP)
+		return 0;
+
+	/* follow-up fragments don't contain ports, skip all fragments */
+	if (ip->frag_off & htons(IP_MF | IP_OFFSET))
+		return 0;
+
+	hmark_set_tuple_ports(skb, (ip->ihl * 4) + nhoff, t, info);
+
+	return 0;
+}
+
+static unsigned int
+hmark_tg_v4(struct sk_buff *skb, const struct xt_action_param *par)
+{
+	const struct xt_hmark_info *info = par->targinfo;
+	struct hmark_tuple t;
+
+	memset(&t, 0, sizeof(struct hmark_tuple));
+
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_CT)) {
+		if (hmark_ct_set_htuple(skb, &t, info) < 0)
+			return XT_CONTINUE;
+	} else {
+		if (hmark_pkt_set_htuple_ipv4(skb, &t, info) < 0)
+			return XT_CONTINUE;
+	}
+
+	skb->mark = hmark_hash(&t, info);
+	return XT_CONTINUE;
+}
+
+static int hmark_tg_check(const struct xt_tgchk_param *par)
+{
+	const struct xt_hmark_info *info = par->targinfo;
+
+	if (!info->hmodulus) {
+		pr_info("xt_HMARK: hash modulus can't be zero\n");
+		return -EINVAL;
+	}
+	if (info->proto_mask &&
+	    (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3))) {
+		pr_info("xt_HMARK: proto mask must be zero with L3 mode\n");
+		return -EINVAL;
+	}
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_SPI_MASK) &&
+	    (info->flags & (XT_HMARK_FLAG(XT_HMARK_SPORT_MASK) |
+			     XT_HMARK_FLAG(XT_HMARK_DPORT_MASK)))) {
+		pr_info("xt_HMARK: spi-mask and port-mask can't be combined\n");
+		return -EINVAL;
+	}
+	if (info->flags & XT_HMARK_FLAG(XT_HMARK_SPI) &&
+	    (info->flags & (XT_HMARK_FLAG(XT_HMARK_SPORT) |
+			     XT_HMARK_FLAG(XT_HMARK_DPORT)))) {
+		pr_info("xt_HMARK: spi-set and port-set can't be combined\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static struct xt_target hmark_tg_reg[] __read_mostly = {
+	{
+		.name		= "HMARK",
+		.family		= NFPROTO_IPV4,
+		.target		= hmark_tg_v4,
+		.targetsize	= sizeof(struct xt_hmark_info),
+		.checkentry	= hmark_tg_check,
+		.me		= THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "HMARK",
+		.family		= NFPROTO_IPV6,
+		.target		= hmark_tg_v6,
+		.targetsize	= sizeof(struct xt_hmark_info),
+		.checkentry	= hmark_tg_check,
+		.me		= THIS_MODULE,
+	},
+#endif
+};
+
+static int __init hmark_tg_init(void)
+{
+	return xt_register_targets(hmark_tg_reg, ARRAY_SIZE(hmark_tg_reg));
+}
+
+static void __exit hmark_tg_exit(void)
+{
+	xt_unregister_targets(hmark_tg_reg, ARRAY_SIZE(hmark_tg_reg));
+}
+
+module_init(hmark_tg_init);
+module_exit(hmark_tg_exit);

net/netfilter/xt_TPROXY.c

@@ -282,10 +282,10 @@ tproxy_tg6_v1(struct sk_buff *skb, const struct xt_action_param *par)
 	struct sock *sk;
 	const struct in6_addr *laddr;
 	__be16 lport;
-	int thoff;
+	int thoff = 0;
 	int tproto;
 
-	tproto = ipv6_find_hdr(skb, &thoff, -1, NULL);
+	tproto = ipv6_find_hdr(skb, &thoff, -1, NULL, NULL);
 	if (tproto < 0) {
 		pr_debug("unable to find transport header in IPv6 packet, dropping\n");
 		return NF_DROP;

net/netfilter/xt_hashlimit.c

@@ -388,9 +388,20 @@ static void htable_put(struct xt_hashlimit_htable *hinfo)
 
 #define CREDITS_PER_JIFFY POW2_BELOW32(MAX_CPJ)
 
+/* in byte mode, the lowest possible rate is one packet/second.
+ * credit_cap is used as a counter that tells us how many times we can
+ * refill the "credits available" counter when it becomes empty.
+ */
+#define MAX_CPJ_BYTES (0xFFFFFFFF / HZ)
+#define CREDITS_PER_JIFFY_BYTES POW2_BELOW32(MAX_CPJ_BYTES)
+
+static u32 xt_hashlimit_len_to_chunks(u32 len)
+{
+	return (len >> XT_HASHLIMIT_BYTE_SHIFT) + 1;
+}
+
 /* Precision saver. */
-static inline u_int32_t
+static u32 user2credits(u32 user)
-user2credits(u_int32_t user)
 {
 	/* If multiplying would overflow... */
 	if (user > 0xFFFFFFFF / (HZ*CREDITS_PER_JIFFY))
@@ -400,12 +411,53 @@ user2credits(u_int32_t user)
 	return (user * HZ * CREDITS_PER_JIFFY) / XT_HASHLIMIT_SCALE;
 }
 
-static inline void rateinfo_recalc(struct dsthash_ent *dh, unsigned long now)
+static u32 user2credits_byte(u32 user)
 {
-	dh->rateinfo.credit += (now - dh->rateinfo.prev) * CREDITS_PER_JIFFY;
+	u64 us = user;
-	if (dh->rateinfo.credit > dh->rateinfo.credit_cap)
+	us *= HZ * CREDITS_PER_JIFFY_BYTES;
-		dh->rateinfo.credit = dh->rateinfo.credit_cap;
+	return (u32) (us >> 32);
+}
+
+static void rateinfo_recalc(struct dsthash_ent *dh, unsigned long now, u32 mode)
+{
+	unsigned long delta = now - dh->rateinfo.prev;
+	u32 cap;
+
+	if (delta == 0)
+		return;
+
 	dh->rateinfo.prev = now;
+
+	if (mode & XT_HASHLIMIT_BYTES) {
+		u32 tmp = dh->rateinfo.credit;
+		dh->rateinfo.credit += CREDITS_PER_JIFFY_BYTES * delta;
+		cap = CREDITS_PER_JIFFY_BYTES * HZ;
+		if (tmp >= dh->rateinfo.credit) {/* overflow */
+			dh->rateinfo.credit = cap;
+			return;
+		}
+	} else {
+		dh->rateinfo.credit += delta * CREDITS_PER_JIFFY;
+		cap = dh->rateinfo.credit_cap;
+	}
+	if (dh->rateinfo.credit > cap)
+		dh->rateinfo.credit = cap;
+}
+
+static void rateinfo_init(struct dsthash_ent *dh,
+			  struct xt_hashlimit_htable *hinfo)
+{
+	dh->rateinfo.prev = jiffies;
+	if (hinfo->cfg.mode & XT_HASHLIMIT_BYTES) {
+		dh->rateinfo.credit = CREDITS_PER_JIFFY_BYTES * HZ;
+		dh->rateinfo.cost = user2credits_byte(hinfo->cfg.avg);
+		dh->rateinfo.credit_cap = hinfo->cfg.burst;
+	} else {
+		dh->rateinfo.credit = user2credits(hinfo->cfg.avg *
+						   hinfo->cfg.burst);
+		dh->rateinfo.cost = user2credits(hinfo->cfg.avg);
+		dh->rateinfo.credit_cap = dh->rateinfo.credit;
+	}
 }
 
 static inline __be32 maskl(__be32 a, unsigned int l)
@@ -511,6 +563,21 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
 	return 0;
 }
 
+static u32 hashlimit_byte_cost(unsigned int len, struct dsthash_ent *dh)
+{
+	u64 tmp = xt_hashlimit_len_to_chunks(len);
+	tmp = tmp * dh->rateinfo.cost;
+
+	if (unlikely(tmp > CREDITS_PER_JIFFY_BYTES * HZ))
+		tmp = CREDITS_PER_JIFFY_BYTES * HZ;
+
+	if (dh->rateinfo.credit < tmp && dh->rateinfo.credit_cap) {
+		dh->rateinfo.credit_cap--;
+		dh->rateinfo.credit = CREDITS_PER_JIFFY_BYTES * HZ;
+	}
+	return (u32) tmp;
+}
+
 static bool
 hashlimit_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
@@ -519,6 +586,7 @@ hashlimit_mt(const struct sk_buff *skb, struct xt_action_param *par)
 	unsigned long now = jiffies;
 	struct dsthash_ent *dh;
 	struct dsthash_dst dst;
+	u32 cost;
 
 	if (hashlimit_init_dst(hinfo, &dst, skb, par->thoff) < 0)
 		goto hotdrop;
@@ -532,21 +600,21 @@ hashlimit_mt(const struct sk_buff *skb, struct xt_action_param *par)
 			goto hotdrop;
 		}
 		dh->expires = jiffies + msecs_to_jiffies(hinfo->cfg.expire);
-		dh->rateinfo.prev = jiffies;
+		rateinfo_init(dh, hinfo);
-		dh->rateinfo.credit = user2credits(hinfo->cfg.avg *
-		                      hinfo->cfg.burst);
-		dh->rateinfo.credit_cap = user2credits(hinfo->cfg.avg *
-		                          hinfo->cfg.burst);
-		dh->rateinfo.cost = user2credits(hinfo->cfg.avg);
 	} else {
 		/* update expiration timeout */
 		dh->expires = now + msecs_to_jiffies(hinfo->cfg.expire);
-		rateinfo_recalc(dh, now);
+		rateinfo_recalc(dh, now, hinfo->cfg.mode);
 	}
 
-	if (dh->rateinfo.credit >= dh->rateinfo.cost) {
+	if (info->cfg.mode & XT_HASHLIMIT_BYTES)
+		cost = hashlimit_byte_cost(skb->len, dh);
+	else
+		cost = dh->rateinfo.cost;
+
+	if (dh->rateinfo.credit >= cost) {
 		/* below the limit */
-		dh->rateinfo.credit -= dh->rateinfo.cost;
+		dh->rateinfo.credit -= cost;
 		spin_unlock(&dh->lock);
 		rcu_read_unlock_bh();
 		return !(info->cfg.mode & XT_HASHLIMIT_INVERT);
@@ -568,14 +636,6 @@ static int hashlimit_mt_check(const struct xt_mtchk_param *par)
 	struct xt_hashlimit_mtinfo1 *info = par->matchinfo;
 	int ret;
 
-	/* Check for overflow. */
-	if (info->cfg.burst == 0 ||
-	    user2credits(info->cfg.avg * info->cfg.burst) <
-	    user2credits(info->cfg.avg)) {
-		pr_info("overflow, try lower: %u/%u\n",
-			info->cfg.avg, info->cfg.burst);
-		return -ERANGE;
-	}
 	if (info->cfg.gc_interval == 0 || info->cfg.expire == 0)
 		return -EINVAL;
 	if (info->name[sizeof(info->name)-1] != '\0')
@@ -588,6 +648,26 @@ static int hashlimit_mt_check(const struct xt_mtchk_param *par)
 			return -EINVAL;
 	}
 
+	if (info->cfg.mode >= XT_HASHLIMIT_MAX) {
+		pr_info("Unknown mode mask %X, kernel too old?\n",
+						info->cfg.mode);
+		return -EINVAL;
+	}
+
+	/* Check for overflow. */
+	if (info->cfg.mode & XT_HASHLIMIT_BYTES) {
+		if (user2credits_byte(info->cfg.avg) == 0) {
+			pr_info("overflow, rate too high: %u\n", info->cfg.avg);
+			return -EINVAL;
+		}
+	} else if (info->cfg.burst == 0 ||
+		    user2credits(info->cfg.avg * info->cfg.burst) <
+		    user2credits(info->cfg.avg)) {
+			pr_info("overflow, try lower: %u/%u\n",
+				info->cfg.avg, info->cfg.burst);
+			return -ERANGE;
+	}
+
 	mutex_lock(&hashlimit_mutex);
 	info->hinfo = htable_find_get(net, info->name, par->family);
 	if (info->hinfo == NULL) {
@@ -680,10 +760,11 @@ static int dl_seq_real_show(struct dsthash_ent *ent, u_int8_t family,
 				   struct seq_file *s)
 {
 	int res;
+	const struct xt_hashlimit_htable *ht = s->private;
 
 	spin_lock(&ent->lock);
 	/* recalculate to show accurate numbers */
-	rateinfo_recalc(ent, jiffies);
+	rateinfo_recalc(ent, jiffies, ht->cfg.mode);
 
 	switch (family) {
 	case NFPROTO_IPV4:

net/netfilter/xt_limit.c

@@ -88,8 +88,7 @@ limit_mt(const struct sk_buff *skb, struct xt_action_param *par)
 }
 
 /* Precision saver. */
-static u_int32_t
+static u32 user2credits(u32 user)
-user2credits(u_int32_t user)
 {
 	/* If multiplying would overflow... */
 	if (user > 0xFFFFFFFF / (HZ*CREDITS_PER_JIFFY))
@@ -123,7 +122,7 @@ static int limit_mt_check(const struct xt_mtchk_param *par)
 		   128. */
 		priv->prev = jiffies;
 		priv->credit = user2credits(r->avg * r->burst); /* Credits full. */
-		r->credit_cap = user2credits(r->avg * r->burst); /* Credits full. */
+		r->credit_cap = priv->credit; /* Credits full. */
 		r->cost = user2credits(r->avg);
 	}
 	return 0;

net/netfilter/xt_mac.c

@@ -36,7 +36,7 @@ static bool mac_mt(const struct sk_buff *skb, struct xt_action_param *par)
 		return false;
 	if (skb_mac_header(skb) + ETH_HLEN > skb->data)
 		return false;
-	ret  = compare_ether_addr(eth_hdr(skb)->h_source, info->srcaddr) == 0;
+	ret  = ether_addr_equal(eth_hdr(skb)->h_source, info->srcaddr);
 	ret ^= info->invert;
 	return ret;
 }

net/netfilter/xt_socket.c

@@ -263,10 +263,10 @@ socket_mt6_v1(const struct sk_buff *skb, struct xt_action_param *par)
 	struct sock *sk;
 	struct in6_addr *daddr, *saddr;
 	__be16 dport, sport;
-	int thoff, tproto;
+	int thoff = 0, tproto;
 	const struct xt_socket_mtinfo1 *info = (struct xt_socket_mtinfo1 *) par->matchinfo;
 
-	tproto = ipv6_find_hdr(skb, &thoff, -1, NULL);
+	tproto = ipv6_find_hdr(skb, &thoff, -1, NULL, NULL);
 	if (tproto < 0) {
 		pr_debug("unable to find transport header in IPv6 packet, dropping\n");
 		return NF_DROP;

net/wireless/ibss.c

@@ -473,7 +473,7 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
 
 	/* fixed already - and no change */
 	if (wdev->wext.ibss.bssid && bssid &&
-	    compare_ether_addr(bssid, wdev->wext.ibss.bssid) == 0)
+	    ether_addr_equal(bssid, wdev->wext.ibss.bssid))
 		return 0;
 
 	wdev_lock(wdev);

net/wireless/mlme.c

@@ -101,7 +101,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
 	ASSERT_WDEV_LOCK(wdev);
 
 	if (wdev->current_bss &&
-	    compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0) {
+	    ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
 		cfg80211_unhold_bss(wdev->current_bss);
 		cfg80211_put_bss(&wdev->current_bss->pub);
 		wdev->current_bss = NULL;
@@ -116,7 +116,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
 
 		reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
 
-		from_ap = compare_ether_addr(mgmt->sa, dev->dev_addr) != 0;
+		from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
 		__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
 	} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
 		__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
@@ -155,7 +155,7 @@ void __cfg80211_send_disassoc(struct net_device *dev,
 		return;
 
 	if (wdev->current_bss &&
-	    compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0) {
+	    ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
 		cfg80211_sme_disassoc(dev, wdev->current_bss);
 		cfg80211_unhold_bss(wdev->current_bss);
 		cfg80211_put_bss(&wdev->current_bss->pub);
@@ -166,7 +166,7 @@ void __cfg80211_send_disassoc(struct net_device *dev,
 
 	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
 
-	from_ap = compare_ether_addr(mgmt->sa, dev->dev_addr) != 0;
+	from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
 	__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
 }
 EXPORT_SYMBOL(__cfg80211_send_disassoc);
@@ -286,7 +286,7 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 			return -EINVAL;
 
 	if (wdev->current_bss &&
-	    compare_ether_addr(bssid, wdev->current_bss->pub.bssid) == 0)
+	    ether_addr_equal(bssid, wdev->current_bss->pub.bssid))
 		return -EALREADY;
 
 	memset(&req, 0, sizeof(req));
@@ -363,7 +363,7 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 	memset(&req, 0, sizeof(req));
 
 	if (wdev->current_bss && prev_bssid &&
-	    compare_ether_addr(wdev->current_bss->pub.bssid, prev_bssid) == 0) {
+	    ether_addr_equal(wdev->current_bss->pub.bssid, prev_bssid)) {
 		/*
 		 * Trying to reassociate: Allow this to proceed and let the old
 		 * association to be dropped when the new one is completed.
@@ -447,8 +447,7 @@ int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 
 	if (local_state_change) {
 		if (wdev->current_bss &&
-		    compare_ether_addr(wdev->current_bss->pub.bssid, bssid)
+		    ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
-		    == 0) {
 			cfg80211_unhold_bss(wdev->current_bss);
 			cfg80211_put_bss(&wdev->current_bss->pub);
 			wdev->current_bss = NULL;
@@ -497,7 +496,7 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 	req.local_state_change = local_state_change;
 	req.ie = ie;
 	req.ie_len = ie_len;
-	if (compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0)
+	if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
 		req.bss = &wdev->current_bss->pub;
 	else
 		return -ENOTCONN;
@@ -760,8 +759,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 				break;
 			}
 
-			if (compare_ether_addr(wdev->current_bss->pub.bssid,
+			if (!ether_addr_equal(wdev->current_bss->pub.bssid,
-					       mgmt->bssid)) {
+					      mgmt->bssid)) {
 				err = -ENOTCONN;
 				break;
 			}
@@ -774,8 +773,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 				break;
 
 			/* for station, check that DA is the AP */
-			if (compare_ether_addr(wdev->current_bss->pub.bssid,
+			if (!ether_addr_equal(wdev->current_bss->pub.bssid,
-					       mgmt->da)) {
+					      mgmt->da)) {
 				err = -ENOTCONN;
 				break;
 			}
@@ -783,11 +782,11 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 		case NL80211_IFTYPE_AP:
 		case NL80211_IFTYPE_P2P_GO:
 		case NL80211_IFTYPE_AP_VLAN:
-			if (compare_ether_addr(mgmt->bssid, dev->dev_addr))
+			if (!ether_addr_equal(mgmt->bssid, dev->dev_addr))
 				err = -EINVAL;
 			break;
 		case NL80211_IFTYPE_MESH_POINT:
-			if (compare_ether_addr(mgmt->sa, mgmt->bssid)) {
+			if (!ether_addr_equal(mgmt->sa, mgmt->bssid)) {
 				err = -EINVAL;
 				break;
 			}
@@ -806,7 +805,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 			return err;
 	}
 
-	if (compare_ether_addr(mgmt->sa, dev->dev_addr) != 0)
+	if (!ether_addr_equal(mgmt->sa, dev->dev_addr))
 		return -EINVAL;
 
 	/* Transmit the Action frame as requested by user space */

net/wireless/scan.c

@@ -281,7 +281,7 @@ static bool is_bss(struct cfg80211_bss *a,
 {
 	const u8 *ssidie;
 
-	if (bssid && compare_ether_addr(a->bssid, bssid))
+	if (bssid && !ether_addr_equal(a->bssid, bssid))
 		return false;
 
 	if (!ssid)

net/wireless/util.c

@@ -370,7 +370,7 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
 		     iftype != NL80211_IFTYPE_P2P_CLIENT &&
 		     iftype != NL80211_IFTYPE_MESH_POINT) ||
 		    (is_multicast_ether_addr(dst) &&
-		     !compare_ether_addr(src, addr)))
+		     ether_addr_equal(src, addr)))
 			return -1;
 		if (iftype == NL80211_IFTYPE_MESH_POINT) {
 			struct ieee80211s_hdr *meshdr =
@@ -398,9 +398,9 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
 	payload = skb->data + hdrlen;
 	ethertype = (payload[6] << 8) | payload[7];
 
-	if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
+	if (likely((ether_addr_equal(payload, rfc1042_header) &&
 		    ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
-		   compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
+		   ether_addr_equal(payload, bridge_tunnel_header))) {
 		/* remove RFC1042 or Bridge-Tunnel encapsulation and
 		 * replace EtherType */
 		skb_pull(skb, hdrlen + 6);
@@ -609,10 +609,9 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
 		payload = frame->data;
 		ethertype = (payload[6] << 8) | payload[7];
 
-		if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
+		if (likely((ether_addr_equal(payload, rfc1042_header) &&
 			    ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
-			   compare_ether_addr(payload,
+			   ether_addr_equal(payload, bridge_tunnel_header))) {
-					      bridge_tunnel_header) == 0)) {
 			/* remove RFC1042 or Bridge-Tunnel
 			 * encapsulation and replace EtherType */
 			skb_pull(frame, 6);

net/wireless/wext-sme.c

@@ -276,7 +276,7 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
 
 		/* fixed already - and no change */
 		if (wdev->wext.connect.bssid && bssid &&
-		    compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
+		    ether_addr_equal(bssid, wdev->wext.connect.bssid))
 			goto out;
 
 		err = __cfg80211_disconnect(rdev, dev,

net/wireless/wext-spy.c

@@ -203,7 +203,7 @@ void wireless_spy_update(struct net_device *	dev,
 
 	/* Update all records that match */
 	for (i = 0; i < spydata->spy_number; i++)
-		if (!compare_ether_addr(address, spydata->spy_address[i])) {
+		if (ether_addr_equal(address, spydata->spy_address[i])) {
 			memcpy(&(spydata->spy_stat[i]), wstats,
 			       sizeof(struct iw_quality));
 			match = i;