From: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Date: Wed, 20 Apr 2022 10:58:51 +0900
Subject: ipv6: Use ipv6_only_sock() helper in condition.
Patch-mainline: v5.19-rc1
Git-commit: 81ee0eb6c0fe34490ed92667538197d9295e899e
References: jsc#PED-1549

This patch replaces some sk_ipv6only tests with ipv6_only_sock().

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/bonding/bond_main.c                                |    2 +-
 drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c |    2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c      |    2 +-
 drivers/net/ethernet/netronome/nfp/crypto/tls.c                |    2 +-
 net/core/filter.c                                              |    2 +-
 net/ipv6/af_inet6.c                                            |    2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4795,7 +4795,7 @@ static void bond_sk_to_flow(struct sock
 	switch (sk->sk_family) {
 #if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
-		if (sk->sk_ipv6only ||
+		if (ipv6_only_sock(sk) ||
 		    ipv6_addr_type(&sk->sk_v6_daddr) != IPV6_ADDR_MAPPED) {
 			flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
 			flow->addrs.v6addrs.src = inet6_sk(sk)->saddr;
--- a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c
@@ -483,7 +483,7 @@ static int chcr_ktls_dev_add(struct net_
 		tx_info->ip_family = AF_INET;
 #if IS_ENABLED(CONFIG_IPV6)
 	} else {
-		if (!sk->sk_ipv6only &&
+		if (!ipv6_only_sock(sk) &&
 		    ipv6_addr_type(&sk->sk_v6_daddr) == IPV6_ADDR_MAPPED) {
 			memcpy(daaddr, &sk->sk_daddr, 4);
 			tx_info->ip_family = AF_INET;
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c
@@ -102,7 +102,7 @@ struct mlx5_flow_handle *mlx5e_accel_fs_
 		break;
 #if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
-		if (!sk->sk_ipv6only &&
+		if (!ipv6_only_sock(sk) &&
 		    ipv6_addr_type(&sk->sk_v6_daddr) == IPV6_ADDR_MAPPED) {
 			accel_fs_tcp_set_ipv4_flow(spec, sk);
 			ft = &fs_tcp->tables[ACCEL_FS_IPV4_TCP];
--- a/drivers/net/ethernet/netronome/nfp/crypto/tls.c
+++ b/drivers/net/ethernet/netronome/nfp/crypto/tls.c
@@ -289,7 +289,7 @@ nfp_net_tls_add(struct net_device *netde
 	switch (sk->sk_family) {
 #if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
-		if (sk->sk_ipv6only ||
+		if (ipv6_only_sock(sk) ||
 		    ipv6_addr_type(&sk->sk_v6_daddr) != IPV6_ADDR_MAPPED) {
 			req_sz = sizeof(struct nfp_crypto_req_add_v6);
 			ipv6 = true;
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -6781,7 +6781,7 @@ BPF_CALL_5(bpf_tcp_gen_syncookie, struct
 	 */
 	switch (((struct iphdr *)iph)->version) {
 	case 4:
-		if (sk->sk_family == AF_INET6 && sk->sk_ipv6only)
+		if (sk->sk_family == AF_INET6 && ipv6_only_sock(sk))
 			return -EINVAL;
 
 		mss = tcp_v4_get_syncookie(sk, iph, th, &cookie);
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -317,7 +317,7 @@ static int __inet6_bind(struct sock *sk,
 		/* Binding to v4-mapped address on a v6-only socket
 		 * makes no sense
 		 */
-		if (sk->sk_ipv6only) {
+		if (ipv6_only_sock(sk)) {
 			err = -EINVAL;
 			goto out;
 		}