rxrpc: Make IPv6 support conditional on CONFIG_IPV6
Add CONFIG_AF_RXRPC_IPV6 and make the IPv6 support code conditional on it.
This is then made conditional on CONFIG_IPV6.
Without this, the following can be seen:
net/built-in.o: In function `rxrpc_init_peer':
>> peer_object.c:(.text+0x18c3c8): undefined reference to `ip6_route_output_flags'
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rxrpc/utils.c b/net/rxrpc/utils.c
index b88914d..ff7af71 100644
--- a/net/rxrpc/utils.c
+++ b/net/rxrpc/utils.c
@@ -30,6 +30,7 @@
srx->transport.sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
return 0;
+#ifdef CONFIG_AF_RXRPC_IPV6
case ETH_P_IPV6:
srx->transport_type = SOCK_DGRAM;
srx->transport_len = sizeof(srx->transport.sin6);
@@ -37,6 +38,7 @@
srx->transport.sin6.sin6_port = udp_hdr(skb)->source;
srx->transport.sin6.sin6_addr = ipv6_hdr(skb)->saddr;
return 0;
+#endif
default:
pr_warn_ratelimited("AF_RXRPC: Unknown eth protocol %u\n",