net: use IS_ENABLED(CONFIG_IPV6)

Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

32 files changed, 127 insertions, 130 deletions

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 375417e633c9..568d5bf17534 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -24,7 +24,7 @@
 #include <linux/slab.h>
 #include <linux/timer.h>
 #include <net/ip.h>
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 #include <net/ipv6.h>
 #include <net/mld.h>
 #include <net/addrconf.h>
@@ -36,7 +36,7 @@
 #define mlock_dereference(X, br) \
 	rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static inline int ipv6_is_transient_multicast(const struct in6_addr *addr)
 {
 	if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr))
@@ -52,7 +52,7 @@ static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b)
 	switch (a->proto) {
 	case htons(ETH_P_IP):
 		return a->u.ip4 == b->u.ip4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case htons(ETH_P_IPV6):
 		return ipv6_addr_equal(&a->u.ip6, &b->u.ip6);
 #endif
@@ -65,7 +65,7 @@ static inline int __br_ip4_hash(struct net_bridge_mdb_htable *mdb, __be32 ip)
 	return jhash_1word(mdb->secret, (__force u32)ip) & (mdb->max - 1);
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static inline int __br_ip6_hash(struct net_bridge_mdb_htable *mdb,
 				const struct in6_addr *ip)
 {
@@ -79,7 +79,7 @@ static inline int br_ip_hash(struct net_bridge_mdb_htable *mdb,
 	switch (ip->proto) {
 	case htons(ETH_P_IP):
 		return __br_ip4_hash(mdb, ip->u.ip4);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case htons(ETH_P_IPV6):
 		return __br_ip6_hash(mdb, &ip->u.ip6);
 #endif
@@ -121,7 +121,7 @@ static struct net_bridge_mdb_entry *br_mdb_ip4_get(
 	return br_mdb_ip_get(mdb, &br_dst);
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static struct net_bridge_mdb_entry *br_mdb_ip6_get(
 	struct net_bridge_mdb_htable *mdb, const struct in6_addr *dst)
 {
@@ -152,7 +152,7 @@ struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
 	case htons(ETH_P_IP):
 		ip.u.ip4 = ip_hdr(skb)->daddr;
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case htons(ETH_P_IPV6):
 		ip.u.ip6 = ipv6_hdr(skb)->daddr;
 		break;
@@ -411,7 +411,7 @@ out:
 	return skb;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br,
 						    const struct in6_addr *group)
 {
@@ -496,7 +496,7 @@ static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br,
 	switch (addr->proto) {
 	case htons(ETH_P_IP):
 		return br_ip4_multicast_alloc_query(br, addr->u.ip4);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case htons(ETH_P_IPV6):
 		return br_ip6_multicast_alloc_query(br, &addr->u.ip6);
 #endif
@@ -773,7 +773,7 @@ static int br_ip4_multicast_add_group(struct net_bridge *br,
 	return br_multicast_add_group(br, port, &br_group);
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static int br_ip6_multicast_add_group(struct net_bridge *br,
 				      struct net_bridge_port *port,
 				      const struct in6_addr *group)
@@ -845,7 +845,7 @@ static void br_multicast_send_query(struct net_bridge *br,
 	br_group.proto = htons(ETH_P_IP);
 	__br_multicast_send_query(br, port, &br_group);
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	br_group.proto = htons(ETH_P_IPV6);
 	__br_multicast_send_query(br, port, &br_group);
 #endif
@@ -989,7 +989,7 @@ static int br_ip4_multicast_igmp3_report(struct net_bridge *br,
 	return err;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static int br_ip6_multicast_mld2_report(struct net_bridge *br,
 					struct net_bridge_port *port,
 					struct sk_buff *skb)
@@ -1185,7 +1185,7 @@ out:
 	return err;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static int br_ip6_multicast_query(struct net_bridge *br,
 				  struct net_bridge_port *port,
 				  struct sk_buff *skb)
@@ -1334,7 +1334,7 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br,
 	br_multicast_leave_group(br, port, &br_group);
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static void br_ip6_multicast_leave_group(struct net_bridge *br,
 					 struct net_bridge_port *port,
 					 const struct in6_addr *group)
@@ -1449,7 +1449,7 @@ err_out:
 	return err;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static int br_multicast_ipv6_rcv(struct net_bridge *br,
 				 struct net_bridge_port *port,
 				 struct sk_buff *skb)
@@ -1596,7 +1596,7 @@ int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
 	switch (skb->protocol) {
 	case htons(ETH_P_IP):
 		return br_multicast_ipv4_rcv(br, port, skb);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case htons(ETH_P_IPV6):
 		return br_multicast_ipv6_rcv(br, port, skb);
 #endif
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 89969080c384..57dcd1489f3f 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -56,7 +56,7 @@ struct br_ip
 {
 	union {
 		__be32	ip4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		struct in6_addr ip6;
 #endif
 	} u;
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index 925991ae6f52..9fbca46f3e74 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -36,7 +36,7 @@ static u32 seq_scale(u32 seq)
 }
 #endif
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 __u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr,
 				   __be16 sport, __be16 dport)
 {
@@ -156,7 +156,7 @@ u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr,
 }
 EXPORT_SYMBOL(secure_dccp_sequence_number);
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 u64 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr,
 				  __be16 sport, __be16 dport)
 {
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 583490aaf56f..5818032e35a9 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -357,7 +357,7 @@ static inline int dccp_bad_service_code(const struct sock *sk,
 struct dccp_skb_cb {
 	union {
 		struct inet_skb_parm	h4;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		struct inet6_skb_parm	h6;
 #endif
 	} header;
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index b50d5fd3d696..5a7f90bbffac 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -53,7 +53,7 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
 	if (tw != NULL) {
 		const struct inet_connection_sock *icsk = inet_csk(sk);
 		const int rto = (icsk->icsk_rto << 2) - (icsk->icsk_rto >> 1);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		if (tw->tw_family == PF_INET6) {
 			const struct ipv6_pinfo *np = inet6_sk(sk);
 			struct inet6_timewait_sock *tw6;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index a598768c616c..2e4e24476c4c 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -418,7 +418,7 @@ static inline u32 inet_synq_hash(const __be32 raddr, const __be16 rport,
 	return jhash_2words((__force u32)raddr, (__force u32)rport, rnd) & (synq_hsize - 1);
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 #define AF_INET_FAMILY(fam) ((fam) == AF_INET)
 #else
 #define AF_INET_FAMILY(fam) 1
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 9b3e0b179cd2..575e28c57cc9 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -116,7 +116,7 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
 	if (ext & (1 << (INET_DIAG_TOS - 1)))
 		RTA_PUT_U8(skb, INET_DIAG_TOS, inet->tos);
 
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	if (r->idiag_family == AF_INET6) {
 		const struct ipv6_pinfo *np = inet6_sk(sk);
 
@@ -234,7 +234,7 @@ static int inet_twsk_diag_fill(struct inet_timewait_sock *tw,
 	r->idiag_wqueue	      = 0;
 	r->idiag_uid	      = 0;
 	r->idiag_inode	      = 0;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	if (tw->tw_family == AF_INET6) {
 		const struct inet6_timewait_sock *tw6 =
 						inet6_twsk((struct sock *)tw);
@@ -286,7 +286,7 @@ int inet_diag_dump_one_icsk(struct inet_hashinfo *hashinfo, struct sk_buff *in_s
 				 req->id.idiag_dport, req->id.idiag_src[0],
 				 req->id.idiag_sport, req->id.idiag_if);
 	}
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	else if (req->sdiag_family == AF_INET6) {
 		sk = inet6_lookup(&init_net, hashinfo,
 				  (struct in6_addr *)req->id.idiag_dst,
@@ -473,7 +473,7 @@ int inet_diag_bc_sk(const struct nlattr *bc, struct sock *sk)
 		return 1;
 
 	entry.family = sk->sk_family;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	if (entry.family == AF_INET6) {
 		struct ipv6_pinfo *np = inet6_sk(sk);
 
@@ -571,7 +571,7 @@ static int inet_twsk_diag_dump(struct inet_timewait_sock *tw,
 		struct inet_diag_entry entry;
 
 		entry.family = tw->tw_family;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		if (tw->tw_family == AF_INET6) {
 			struct inet6_timewait_sock *tw6 =
 						inet6_twsk((struct sock *)tw);
@@ -633,7 +633,7 @@ static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk,
 	r->idiag_wqueue = 0;
 	r->idiag_uid = sock_i_uid(sk);
 	r->idiag_inode = 0;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	if (r->idiag_family == AF_INET6) {
 		*(struct in6_addr *)r->id.idiag_src = inet6_rsk(req)->loc_addr;
 		*(struct in6_addr *)r->id.idiag_dst = inet6_rsk(req)->rmt_addr;
@@ -695,13 +695,13 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk,
 
 			if (bc) {
 				entry.saddr =
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 					(entry.family == AF_INET6) ?
 					inet6_rsk(req)->loc_addr.s6_addr32 :
 #endif
 					&ireq->loc_addr;
 				entry.daddr =
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 					(entry.family == AF_INET6) ?
 					inet6_rsk(req)->rmt_addr.s6_addr32 :
 #endif
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index fe070c1593ab..2b53a1f7abf6 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -46,7 +46,7 @@
 #include <net/rtnetlink.h>
 #include <net/gre.h>
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 #include <net/ipv6.h>
 #include <net/ip6_fib.h>
 #include <net/ip6_route.h>
@@ -729,7 +729,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 			if ((dst = rt->rt_gateway) == 0)
 				goto tx_error_icmp;
 		}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		else if (skb->protocol == htons(ETH_P_IPV6)) {
 			struct neighbour *neigh = dst_get_neighbour_noref(skb_dst(skb));
 			const struct in6_addr *addr6;
@@ -799,7 +799,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 			goto tx_error;
 		}
 	}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	else if (skb->protocol == htons(ETH_P_IPV6)) {
 		struct rt6_info *rt6 = (struct rt6_info *)skb_dst(skb);
 
@@ -875,7 +875,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 	if ((iph->ttl = tiph->ttl) == 0) {
 		if (skb->protocol == htons(ETH_P_IP))
 			iph->ttl = old_iph->ttl;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		else if (skb->protocol == htons(ETH_P_IPV6))
 			iph->ttl = ((const struct ipv6hdr *)old_iph)->hop_limit;
 #endif
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 80d5fa450210..8aa87c19fa00 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -37,7 +37,7 @@
 #include <net/route.h>
 #include <net/xfrm.h>
 #include <net/compat.h>
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 #include <net/transp_v6.h>
 #endif
 
@@ -508,7 +508,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 						sock_owned_by_user(sk));
 		if (inet->is_icsk) {
 			struct inet_connection_sock *icsk = inet_csk(sk);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 			if (sk->sk_family == PF_INET ||
 			    (!((1 << sk->sk_state) &
 			       (TCPF_LISTEN | TCPF_CLOSE)) &&
@@ -519,7 +519,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 				if (opt)
 					icsk->icsk_ext_hdr_len += opt->opt.optlen;
 				icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 			}
 #endif
 		}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 0cbb44076cfa..b9cbc351c511 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2663,7 +2663,7 @@ static void DBGUNDO(struct sock *sk, const char *msg)
 		       tp->snd_ssthresh, tp->prior_ssthresh,
 		       tp->packets_out);
 	}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	else if (sk->sk_family == AF_INET6) {
 		struct ipv6_pinfo *np = inet6_sk(sk);
 		printk(KERN_DEBUG "Undo %s %pI6/%u c%u l%u ss%u/%u p%u\n",
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 9dc146e5ed65..550e755747e0 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -336,7 +336,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
 		tcptw->tw_ts_recent	= tp->rx_opt.ts_recent;
 		tcptw->tw_ts_recent_stamp = tp->rx_opt.ts_recent_stamp;
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		if (tw->tw_family == PF_INET6) {
 			struct ipv6_pinfo *np = inet6_sk(sk);
 			struct inet6_timewait_sock *tw6;
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 2e0f0af76c19..aa39a692f4c8 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -340,7 +340,7 @@ void tcp_retransmit_timer(struct sock *sk)
 			       &inet->inet_daddr, ntohs(inet->inet_dport),
 			       inet->inet_num, tp->snd_una, tp->snd_nxt);
 		}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		else if (sk->sk_family == AF_INET6) {
 			struct ipv6_pinfo *np = inet6_sk(sk);
 			LIMIT_NETDEBUG(KERN_DEBUG "TCP: Peer %pI6:%u/%u unexpectedly shrunk window %u:%u (repaired)\n",
diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c
index ac3b3ee4b07c..01775983b997 100644
--- a/net/ipv4/tunnel4.c
+++ b/net/ipv4/tunnel4.c
@@ -105,7 +105,7 @@ drop:
 	return 0;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static int tunnel64_rcv(struct sk_buff *skb)
 {
 	struct xfrm_tunnel *handler;
@@ -134,7 +134,7 @@ static void tunnel4_err(struct sk_buff *skb, u32 info)
 			break;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static void tunnel64_err(struct sk_buff *skb, u32 info)
 {
 	struct xfrm_tunnel *handler;
@@ -152,7 +152,7 @@ static const struct net_protocol tunnel4_protocol = {
 	.netns_ok	=	1,
 };
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static const struct net_protocol tunnel64_protocol = {
 	.handler	=	tunnel64_rcv,
 	.err_handler	=	tunnel64_err,
@@ -167,7 +167,7 @@ static int __init tunnel4_init(void)
 		printk(KERN_ERR "tunnel4 init: can't add protocol\n");
 		return -EAGAIN;
 	}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	if (inet_add_protocol(&tunnel64_protocol, IPPROTO_IPV6)) {
 		printk(KERN_ERR "tunnel64 init: can't add protocol\n");
 		inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP);
@@ -179,7 +179,7 @@ static int __init tunnel4_init(void)
 
 static void __exit tunnel4_fini(void)
 {
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	if (inet_del_protocol(&tunnel64_protocol, IPPROTO_IPV6))
 		printk(KERN_ERR "tunnel64 close: can't remove protocol\n");
 #endif
diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 82806455e859..9247d9d70e9d 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -64,7 +64,7 @@ static struct xfrm_tunnel xfrm_tunnel_handler __read_mostly = {
 	.priority	=	2,
 };
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static struct xfrm_tunnel xfrm64_tunnel_handler __read_mostly = {
 	.handler	=	xfrm_tunnel_rcv,
 	.err_handler	=	xfrm_tunnel_err,
@@ -84,7 +84,7 @@ static int __init ipip_init(void)
 		xfrm_unregister_type(&ipip_type, AF_INET);
 		return -EAGAIN;
 	}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	if (xfrm4_tunnel_register(&xfrm64_tunnel_handler, AF_INET6)) {
 		printk(KERN_INFO "ipip init: can't add xfrm handler for AF_INET6\n");
 		xfrm4_tunnel_deregister(&xfrm_tunnel_handler, AF_INET);
@@ -97,7 +97,7 @@ static int __init ipip_init(void)
 
 static void __exit ipip_fini(void)
 {
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	if (xfrm4_tunnel_deregister(&xfrm64_tunnel_handler, AF_INET6))
 		printk(KERN_INFO "ipip close: can't remove xfrm handler for AF_INET6\n");
 #endif
diff --git a/net/key/af_key.c b/net/key/af_key.c
index bfc0bef170cb..11dbb2255ccb 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -375,7 +375,7 @@ static int verify_address_len(const void *p)
 	const struct sadb_address *sp = p;
 	const struct sockaddr *addr = (const struct sockaddr *)(sp + 1);
 	const struct sockaddr_in *sin;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	const struct sockaddr_in6 *sin6;
 #endif
 	int len;
@@ -387,7 +387,7 @@ static int verify_address_len(const void *p)
 		    sp->sadb_address_prefixlen > 32)
 			return -EINVAL;
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		len = DIV_ROUND_UP(sizeof(*sp) + sizeof(*sin6), sizeof(uint64_t));
 		if (sp->sadb_address_len != len ||
@@ -469,7 +469,7 @@ static int present_and_same_family(const struct sadb_address *src,
 	if (s_addr->sa_family != d_addr->sa_family)
 		return 0;
 	if (s_addr->sa_family != AF_INET
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	    && s_addr->sa_family != AF_INET6
 #endif
 		)
@@ -579,7 +579,7 @@ static inline int pfkey_sockaddr_len(sa_family_t family)
 	switch (family) {
 	case AF_INET:
 		return sizeof(struct sockaddr_in);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		return sizeof(struct sockaddr_in6);
 #endif
@@ -595,7 +595,7 @@ int pfkey_sockaddr_extract(const struct sockaddr *sa, xfrm_address_t *xaddr)
 		xaddr->a4 =
 			((struct sockaddr_in *)sa)->sin_addr.s_addr;
 		return AF_INET;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		memcpy(xaddr->a6,
 		       &((struct sockaddr_in6 *)sa)->sin6_addr,
@@ -639,7 +639,7 @@ static struct  xfrm_state *pfkey_xfrm_state_lookup(struct net *net, const struct
 	case AF_INET:
 		xaddr = (xfrm_address_t *)&((const struct sockaddr_in *)(addr + 1))->sin_addr;
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		xaddr = (xfrm_address_t *)&((const struct sockaddr_in6 *)(addr + 1))->sin6_addr;
 		break;
@@ -705,7 +705,7 @@ static unsigned int pfkey_sockaddr_fill(const xfrm_address_t *xaddr, __be16 port
 		memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
 		return 32;
 	    }
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 	    {
 		struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
@@ -1311,7 +1311,7 @@ static int pfkey_getspi(struct sock *sk, struct sk_buff *skb, const struct sadb_
 		xdaddr = (xfrm_address_t *)&((struct sockaddr_in *)(daddr + 1))->sin_addr.s_addr;
 		xsaddr = (xfrm_address_t *)&((struct sockaddr_in *)(saddr + 1))->sin_addr.s_addr;
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		xdaddr = (xfrm_address_t *)&((struct sockaddr_in6 *)(daddr + 1))->sin6_addr;
 		xsaddr = (xfrm_address_t *)&((struct sockaddr_in6 *)(saddr + 1))->sin6_addr;
@@ -3146,7 +3146,7 @@ static struct xfrm_policy *pfkey_compile_policy(struct sock *sk, int opt,
 			return NULL;
 		}
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		if (opt != IPV6_IPSEC_POLICY) {
 			*dir = -EOPNOTSUPP;
diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c
index 5f054a0dbbb1..68349c31083c 100644
--- a/net/netfilter/xt_TEE.c
+++ b/net/netfilter/xt_TEE.c
@@ -29,9 +29,6 @@
 #	define WITH_CONNTRACK 1
 #	include <net/netfilter/nf_conntrack.h>
 #endif
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-#	define WITH_IPV6 1
-#endif
 
 struct xt_tee_priv {
 	struct notifier_block	notifier;
@@ -136,7 +133,7 @@ tee_tg4(struct sk_buff *skb, const struct xt_action_param *par)
 	return XT_CONTINUE;
 }
 
-#ifdef WITH_IPV6
+#if IS_ENABLED(CONFIG_IPV6)
 static bool
 tee_tg_route6(struct sk_buff *skb, const struct xt_tee_tginfo *info)
 {
@@ -196,7 +193,7 @@ tee_tg6(struct sk_buff *skb, const struct xt_action_param *par)
 	}
 	return XT_CONTINUE;
 }
-#endif /* WITH_IPV6 */
+#endif
 
 static int tee_netdev_event(struct notifier_block *this, unsigned long event,
 			    void *ptr)
@@ -276,7 +273,7 @@ static struct xt_target tee_tg_reg[] __read_mostly = {
 		.destroy    = tee_tg_destroy,
 		.me         = THIS_MODULE,
 	},
-#ifdef WITH_IPV6
+#if IS_ENABLED(CONFIG_IPV6)
 	{
 		.name       = "TEE",
 		.revision   = 1,
diff --git a/net/netlabel/netlabel_addrlist.c b/net/netlabel/netlabel_addrlist.c
index 96b749dacc34..6f1701322fb6 100644
--- a/net/netlabel/netlabel_addrlist.c
+++ b/net/netlabel/netlabel_addrlist.c
@@ -96,7 +96,7 @@ struct netlbl_af4list *netlbl_af4list_search_exact(__be32 addr,
 }
 
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 /**
  * netlbl_af6list_search - Search for a matching IPv6 address entry
  * @addr: IPv6 address
@@ -185,7 +185,7 @@ int netlbl_af4list_add(struct netlbl_af4list *entry, struct list_head *head)
 	return 0;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 /**
  * netlbl_af6list_add - Add a new IPv6 address entry to a list
  * @entry: address entry
@@ -263,7 +263,7 @@ struct netlbl_af4list *netlbl_af4list_remove(__be32 addr, __be32 mask,
 	return entry;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 /**
  * netlbl_af6list_remove_entry - Remove an IPv6 address entry
  * @entry: address entry
@@ -342,7 +342,7 @@ void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
 	}
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 /**
  * netlbl_af6list_audit_addr - Audit an IPv6 address
  * @audit_buf: audit buffer
diff --git a/net/netlabel/netlabel_addrlist.h b/net/netlabel/netlabel_addrlist.h
index fdbc1d2c7352..a1287ce18130 100644
--- a/net/netlabel/netlabel_addrlist.h
+++ b/net/netlabel/netlabel_addrlist.h
@@ -133,7 +133,7 @@ static inline void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
 }
 #endif
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 
 #define __af6list_entry(ptr) container_of(ptr, struct netlbl_af6list, list)
 
diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c
index 3f905e5370c2..38204112b9f4 100644
--- a/net/netlabel/netlabel_domainhash.c
+++ b/net/netlabel/netlabel_domainhash.c
@@ -78,7 +78,7 @@ static void netlbl_domhsh_free_entry(struct rcu_head *entry)
 	struct netlbl_dom_map *ptr;
 	struct netlbl_af4list *iter4;
 	struct netlbl_af4list *tmp4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	struct netlbl_af6list *iter6;
 	struct netlbl_af6list *tmp6;
 #endif /* IPv6 */
@@ -90,7 +90,7 @@ static void netlbl_domhsh_free_entry(struct rcu_head *entry)
 			netlbl_af4list_remove_entry(iter4);
 			kfree(netlbl_domhsh_addr4_entry(iter4));
 		}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		netlbl_af6list_foreach_safe(iter6, tmp6,
 					    &ptr->type_def.addrsel->list6) {
 			netlbl_af6list_remove_entry(iter6);
@@ -217,7 +217,7 @@ static void netlbl_domhsh_audit_add(struct netlbl_dom_map *entry,
 			cipsov4 = map4->type_def.cipsov4;
 			netlbl_af4list_audit_addr(audit_buf, 0, NULL,
 						  addr4->addr, addr4->mask);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		} else if (addr6 != NULL) {
 			struct netlbl_domaddr6_map *map6;
 			map6 = netlbl_domhsh_addr6_entry(addr6);
@@ -306,7 +306,7 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry,
 	struct netlbl_dom_map *entry_old;
 	struct netlbl_af4list *iter4;
 	struct netlbl_af4list *tmp4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	struct netlbl_af6list *iter6;
 	struct netlbl_af6list *tmp6;
 #endif /* IPv6 */
@@ -338,7 +338,7 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry,
 					       &entry->type_def.addrsel->list4)
 				netlbl_domhsh_audit_add(entry, iter4, NULL,
 							ret_val, audit_info);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 			netlbl_af6list_foreach_rcu(iter6,
 					       &entry->type_def.addrsel->list6)
 				netlbl_domhsh_audit_add(entry, NULL, iter6,
@@ -365,7 +365,7 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry,
 				ret_val = -EEXIST;
 				goto add_return;
 			}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		netlbl_af6list_foreach_rcu(iter6,
 					   &entry->type_def.addrsel->list6)
 			if (netlbl_af6list_search_exact(&iter6->addr,
@@ -386,7 +386,7 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry,
 			if (ret_val != 0)
 				goto add_return;
 		}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		netlbl_af6list_foreach_safe(iter6, tmp6,
 					    &entry->type_def.addrsel->list6) {
 			netlbl_af6list_remove_entry(iter6);
@@ -510,7 +510,7 @@ int netlbl_domhsh_remove_af4(const char *domain,
 	struct netlbl_dom_map *entry_map;
 	struct netlbl_af4list *entry_addr;
 	struct netlbl_af4list *iter4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	struct netlbl_af6list *iter6;
 #endif /* IPv6 */
 	struct netlbl_domaddr4_map *entry;
@@ -533,7 +533,7 @@ int netlbl_domhsh_remove_af4(const char *domain,
 		goto remove_af4_failure;
 	netlbl_af4list_foreach_rcu(iter4, &entry_map->type_def.addrsel->list4)
 		goto remove_af4_single_addr;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	netlbl_af6list_foreach_rcu(iter6, &entry_map->type_def.addrsel->list6)
 		goto remove_af4_single_addr;
 #endif /* IPv6 */
@@ -644,7 +644,7 @@ struct netlbl_domaddr4_map *netlbl_domhsh_getentry_af4(const char *domain,
 	return netlbl_domhsh_addr4_entry(addr_iter);
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 /**
  * netlbl_domhsh_getentry_af6 - Get an entry from the domain hash table
  * @domain: the domain name to search for
diff --git a/net/netlabel/netlabel_domainhash.h b/net/netlabel/netlabel_domainhash.h
index bfcc0f7024c5..90872c4ca30f 100644
--- a/net/netlabel/netlabel_domainhash.h
+++ b/net/netlabel/netlabel_domainhash.h
@@ -104,7 +104,7 @@ int netlbl_domhsh_walk(u32 *skip_bkt,
 		     int (*callback) (struct netlbl_dom_map *entry, void *arg),
 		     void *cb_arg);
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 struct netlbl_domaddr6_map *netlbl_domhsh_getentry_af6(const char *domain,
 						  const struct in6_addr *addr);
 #endif /* IPv6 */
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index 5952237c0c86..2560e7b441c6 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -147,7 +147,7 @@ int netlbl_cfg_unlbl_map_add(const char *domain,
 				goto cfg_unlbl_map_add_failure;
 			break;
 			}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		case AF_INET6: {
 			const struct in6_addr *addr6 = addr;
 			const struct in6_addr *mask6 = mask;
@@ -227,7 +227,7 @@ int netlbl_cfg_unlbl_static_add(struct net *net,
 	case AF_INET:
 		addr_len = sizeof(struct in_addr);
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		addr_len = sizeof(struct in6_addr);
 		break;
@@ -270,7 +270,7 @@ int netlbl_cfg_unlbl_static_del(struct net *net,
 	case AF_INET:
 		addr_len = sizeof(struct in_addr);
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		addr_len = sizeof(struct in6_addr);
 		break;
@@ -673,7 +673,7 @@ int netlbl_sock_setattr(struct sock *sk,
 			ret_val = -ENOENT;
 		}
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		/* since we don't support any IPv6 labeling protocols right
 		 * now we can optimize everything away until we do */
@@ -724,7 +724,7 @@ int netlbl_sock_getattr(struct sock *sk,
 	case AF_INET:
 		ret_val = cipso_v4_sock_getattr(sk, secattr);
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		ret_val = -ENOMSG;
 		break;
@@ -782,7 +782,7 @@ int netlbl_conn_setattr(struct sock *sk,
 			ret_val = -ENOENT;
 		}
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		/* since we don't support any IPv6 labeling protocols right
 		 * now we can optimize everything away until we do */
@@ -853,7 +853,7 @@ int netlbl_req_setattr(struct request_sock *req,
 			ret_val = -ENOENT;
 		}
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		/* since we don't support any IPv6 labeling protocols right
 		 * now we can optimize everything away until we do */
@@ -926,7 +926,7 @@ int netlbl_skbuff_setattr(struct sk_buff *skb,
 			ret_val = -ENOENT;
 		}
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		/* since we don't support any IPv6 labeling protocols right
 		 * now we can optimize everything away until we do */
@@ -965,7 +965,7 @@ int netlbl_skbuff_getattr(const struct sk_buff *skb,
 		    cipso_v4_skbuff_getattr(skb, secattr) == 0)
 			return 0;
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		break;
 #endif /* IPv6 */
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index 9879300beefd..4809e2e48b02 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -184,7 +184,7 @@ static int netlbl_mgmt_add_common(struct genl_info *info,
 
 		entry->type = NETLBL_NLTYPE_ADDRSELECT;
 		entry->type_def.addrsel = addrmap;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	} else if (info->attrs[NLBL_MGMT_A_IPV6ADDR]) {
 		struct in6_addr *addr;
 		struct in6_addr *mask;
@@ -270,7 +270,7 @@ static int netlbl_mgmt_listentry(struct sk_buff *skb,
 	struct nlattr *nla_a;
 	struct nlattr *nla_b;
 	struct netlbl_af4list *iter4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	struct netlbl_af6list *iter6;
 #endif
 
@@ -324,7 +324,7 @@ static int netlbl_mgmt_listentry(struct sk_buff *skb,
 
 			nla_nest_end(skb, nla_b);
 		}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		netlbl_af6list_foreach_rcu(iter6,
 					   &entry->type_def.addrsel->list6) {
 			struct netlbl_domaddr6_map *map6;
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 049ccd2447d7..4b5fa0fe78fd 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -170,7 +170,7 @@ static void netlbl_unlhsh_free_iface(struct rcu_head *entry)
 	struct netlbl_unlhsh_iface *iface;
 	struct netlbl_af4list *iter4;
 	struct netlbl_af4list *tmp4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	struct netlbl_af6list *iter6;
 	struct netlbl_af6list *tmp6;
 #endif /* IPv6 */
@@ -184,7 +184,7 @@ static void netlbl_unlhsh_free_iface(struct rcu_head *entry)
 		netlbl_af4list_remove_entry(iter4);
 		kfree(netlbl_unlhsh_addr4_entry(iter4));
 	}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	netlbl_af6list_foreach_safe(iter6, tmp6, &iface->addr6_list) {
 		netlbl_af6list_remove_entry(iter6);
 		kfree(netlbl_unlhsh_addr6_entry(iter6));
@@ -274,7 +274,7 @@ static int netlbl_unlhsh_add_addr4(struct netlbl_unlhsh_iface *iface,
 	return ret_val;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 /**
  * netlbl_unlhsh_add_addr6 - Add a new IPv6 address entry to the hash table
  * @iface: the associated interface entry
@@ -436,7 +436,7 @@ int netlbl_unlhsh_add(struct net *net,
 						  mask4->s_addr);
 		break;
 	}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case sizeof(struct in6_addr): {
 		const struct in6_addr *addr6 = addr;
 		const struct in6_addr *mask6 = mask;
@@ -531,7 +531,7 @@ static int netlbl_unlhsh_remove_addr4(struct net *net,
 	return 0;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 /**
  * netlbl_unlhsh_remove_addr6 - Remove an IPv6 address entry
  * @net: network namespace
@@ -606,14 +606,14 @@ static int netlbl_unlhsh_remove_addr6(struct net *net,
 static void netlbl_unlhsh_condremove_iface(struct netlbl_unlhsh_iface *iface)
 {
 	struct netlbl_af4list *iter4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	struct netlbl_af6list *iter6;
 #endif /* IPv6 */
 
 	spin_lock(&netlbl_unlhsh_lock);
 	netlbl_af4list_foreach_rcu(iter4, &iface->addr4_list)
 		goto unlhsh_condremove_failure;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	netlbl_af6list_foreach_rcu(iter6, &iface->addr6_list)
 		goto unlhsh_condremove_failure;
 #endif /* IPv6 */
@@ -680,7 +680,7 @@ int netlbl_unlhsh_remove(struct net *net,
 						     iface, addr, mask,
 						     audit_info);
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case sizeof(struct in6_addr):
 		ret_val = netlbl_unlhsh_remove_addr6(net,
 						     iface, addr, mask,
@@ -1196,7 +1196,7 @@ static int netlbl_unlabel_staticlist(struct sk_buff *skb,
 	struct netlbl_unlhsh_iface *iface;
 	struct list_head *iter_list;
 	struct netlbl_af4list *addr4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	struct netlbl_af6list *addr6;
 #endif
 
@@ -1228,7 +1228,7 @@ static int netlbl_unlabel_staticlist(struct sk_buff *skb,
 					goto unlabel_staticlist_return;
 				}
 			}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 			netlbl_af6list_foreach_rcu(addr6,
 						   &iface->addr6_list) {
 				if (iter_addr6++ < skip_addr6)
@@ -1277,7 +1277,7 @@ static int netlbl_unlabel_staticlistdef(struct sk_buff *skb,
 	u32 skip_addr6 = cb->args[1];
 	u32 iter_addr4 = 0;
 	struct netlbl_af4list *addr4;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	u32 iter_addr6 = 0;
 	struct netlbl_af6list *addr6;
 #endif
@@ -1303,7 +1303,7 @@ static int netlbl_unlabel_staticlistdef(struct sk_buff *skb,
 			goto unlabel_staticlistdef_return;
 		}
 	}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	netlbl_af6list_foreach_rcu(addr6, &iface->addr6_list) {
 		if (iter_addr6++ < skip_addr6)
 			continue;
@@ -1494,7 +1494,7 @@ int netlbl_unlabel_getattr(const struct sk_buff *skb,
 		secattr->attr.secid = netlbl_unlhsh_addr4_entry(addr4)->secid;
 		break;
 	}
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case PF_INET6: {
 		struct ipv6hdr *hdr6;
 		struct netlbl_af6list *addr6;
diff --git a/net/sctp/input.c b/net/sctp/input.c
index b7692aab6e9c..80f71af71384 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -105,7 +105,7 @@ static inline int sctp_rcv_checksum(struct sk_buff *skb)
 struct sctp_input_cb {
 	union {
 		struct inet_skb_parm	h4;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		struct inet6_skb_parm	h6;
 #endif
 	} header;
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 61b9fca5a173..544a9b68eb53 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -637,7 +637,7 @@ void sctp_addr_wq_timeout_handler(unsigned long arg)
 		    " for cmd %d at entry %p\n", &sctp_addr_waitq, &addrw->a, addrw->state,
 		    addrw);
 
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		/* Now we send an ASCONF for each association */
 		/* Note. we currently don't handle link local IPv6 addressees */
 		if (addrw->a.sa.sa_family == AF_INET6) {
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index d56c07a3d435..db0308344d07 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6841,7 +6841,7 @@ struct proto sctp_prot = {
 	.sockets_allocated = &sctp_sockets_allocated,
 };
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 
 struct proto sctpv6_prot = {
 	.name		= "SCTPv6",
@@ -6872,4 +6872,4 @@ struct proto sctpv6_prot = {
 	.memory_allocated = &sctp_memory_allocated,
 	.sockets_allocated = &sctp_sockets_allocated,
 };
-#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
+#endif /* IS_ENABLED(CONFIG_IPV6) */
diff --git a/net/sunrpc/addr.c b/net/sunrpc/addr.c
index 67a655ee82a9..ee77742e0ed6 100644
--- a/net/sunrpc/addr.c
+++ b/net/sunrpc/addr.c
@@ -21,7 +21,7 @@
 #include <linux/slab.h>
 #include <linux/export.h>
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 
 static size_t rpc_ntop6_noscopeid(const struct sockaddr *sap,
 				  char *buf, const int buflen)
@@ -91,7 +91,7 @@ static size_t rpc_ntop6(const struct sockaddr *sap,
 	return len;
 }
 
-#else	/* !(defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)) */
+#else	/* !IS_ENABLED(CONFIG_IPV6) */
 
 static size_t rpc_ntop6_noscopeid(const struct sockaddr *sap,
 				  char *buf, const int buflen)
@@ -105,7 +105,7 @@ static size_t rpc_ntop6(const struct sockaddr *sap,
 	return 0;
 }
 
-#endif	/* !(defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)) */
+#endif	/* !IS_ENABLED(CONFIG_IPV6) */
 
 static int rpc_ntop4(const struct sockaddr *sap,
 		     char *buf, const size_t buflen)
@@ -155,7 +155,7 @@ static size_t rpc_pton4(const char *buf, const size_t buflen,
 	return sizeof(struct sockaddr_in);
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static int rpc_parse_scope_id(const char *buf, const size_t buflen,
 			      const char *delim, struct sockaddr_in6 *sin6)
 {
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 6e038884ae0c..9d01d46b05f3 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -826,7 +826,7 @@ static int __svc_rpcb_register4(const u32 program, const u32 version,
 	return error;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 /*
  * Register an "inet6" protocol family netid with the local
  * rpcbind daemon via an rpcbind v4 SET request.
@@ -872,7 +872,7 @@ static int __svc_rpcb_register6(const u32 program, const u32 version,
 
 	return error;
 }
-#endif	/* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
+#endif	/* IS_ENABLED(CONFIG_IPV6) */
 
 /*
  * Register a kernel RPC service via rpcbind version 4.
@@ -893,11 +893,11 @@ static int __svc_register(const char *progname,
 		error = __svc_rpcb_register4(program, version,
 						protocol, port);
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case PF_INET6:
 		error = __svc_rpcb_register6(program, version,
 						protocol, port);
-#endif	/* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
+#endif
 	}
 
 	if (error < 0)
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 447cd0eb415c..38649cfa4e81 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -179,13 +179,13 @@ static struct svc_xprt *__svc_xpo_create(struct svc_xprt_class *xcl,
 		.sin_addr.s_addr	= htonl(INADDR_ANY),
 		.sin_port		= htons(port),
 	};
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	struct sockaddr_in6 sin6 = {
 		.sin6_family		= AF_INET6,
 		.sin6_addr		= IN6ADDR_ANY_INIT,
 		.sin6_port		= htons(port),
 	};
-#endif	/* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
+#endif
 	struct sockaddr *sap;
 	size_t len;
 
@@ -194,12 +194,12 @@ static struct svc_xprt *__svc_xpo_create(struct svc_xprt_class *xcl,
 		sap = (struct sockaddr *)&sin;
 		len = sizeof(sin);
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case PF_INET6:
 		sap = (struct sockaddr *)&sin6;
 		len = sizeof(sin6);
 		break;
-#endif	/* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
+#endif
 	default:
 		return ERR_PTR(-EAFNOSUPPORT);
 	}
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index fe258fc37f50..01153ead1dba 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -220,7 +220,7 @@ static int ip_map_parse(struct cache_detail *cd,
 		ipv6_addr_set_v4mapped(address.s4.sin_addr.s_addr,
 				&sin6.sin6_addr);
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		memcpy(&sin6, &address.s6, sizeof(sin6));
 		break;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 82e803b56952..eb6b0b7781a5 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1340,7 +1340,7 @@ static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)
 	case AF_INET:
 		dst_ops = &net->xfrm.xfrm4_dst_ops;
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		dst_ops = &net->xfrm.xfrm6_dst_ops;
 		break;
@@ -2435,7 +2435,7 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
 		case AF_INET:
 			xfrm_dst_ops = &net->xfrm.xfrm4_dst_ops;
 			break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		case AF_INET6:
 			xfrm_dst_ops = &net->xfrm.xfrm6_dst_ops;
 			break;
@@ -2485,7 +2485,7 @@ static void __net_init xfrm_dst_ops_init(struct net *net)
 	afinfo = xfrm_policy_afinfo[AF_INET];
 	if (afinfo)
 		net->xfrm.xfrm4_dst_ops = *afinfo->dst_ops;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	afinfo = xfrm_policy_afinfo[AF_INET6];
 	if (afinfo)
 		net->xfrm.xfrm6_dst_ops = *afinfo->dst_ops;
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index d0a42df5160e..e0d747a2e803 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -28,7 +28,7 @@
 #include <net/netlink.h>
 #include <net/ah.h>
 #include <asm/uaccess.h>
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 #include <linux/in6.h>
 #endif
 
@@ -150,7 +150,7 @@ static int verify_newsa_info(struct xfrm_usersa_info *p,
 		break;
 
 	case AF_INET6:
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		break;
 #else
 		err = -EAFNOSUPPORT;
@@ -201,7 +201,7 @@ static int verify_newsa_info(struct xfrm_usersa_info *p,
 			goto out;
 		break;
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case IPPROTO_DSTOPTS:
 	case IPPROTO_ROUTING:
 		if (attrs[XFRMA_ALG_COMP]	||
@@ -1160,7 +1160,7 @@ static int verify_newpolicy_info(struct xfrm_userpolicy_info *p)
 		break;
 
 	case AF_INET6:
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		break;
 #else
 		return  -EAFNOSUPPORT;
@@ -1231,7 +1231,7 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family)
 		switch (ut[i].family) {
 		case AF_INET:
 			break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 		case AF_INET6:
 			break;
 #endif
@@ -2604,7 +2604,7 @@ static struct xfrm_policy *xfrm_compile_policy(struct sock *sk, int opt,
 			return NULL;
 		}
 		break;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		if (opt != IPV6_XFRM_POLICY) {
 			*dir = -EOPNOTSUPP;