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rxrpc: Make IPv6 support conditional on CONFIG_IPV6

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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>
This commit is contained in:
David Howells
2016-09-17 07:26:01 +01:00
committed by David S. Miller
parent 84ce3da1bf
commit d19127473a
8 changed files with 34 additions and 2 deletions
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10
net/rxrpc/peer_object.c
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@@ -52,11 +52,13 @@ static unsigned long rxrpc_peer_hash_key(struct rxrpc_local *local,
size = sizeof(srx->transport.sin.sin_addr);
p = (u16 *)&srx->transport.sin.sin_addr;
break;
#ifdef CONFIG_AF_RXRPC_IPV6
case AF_INET6:
hash_key += (u16 __force)srx->transport.sin.sin_port;
size = sizeof(srx->transport.sin6.sin6_addr);
p = (u16 *)&srx->transport.sin6.sin6_addr;
break;
#endif
default:
WARN(1, "AF_RXRPC: Unsupported transport address family\n");
return 0;
@@ -100,12 +102,14 @@ static long rxrpc_peer_cmp_key(const struct rxrpc_peer *peer,
memcmp(&peer->srx.transport.sin.sin_addr,
&srx->transport.sin.sin_addr,
sizeof(struct in_addr));
#ifdef CONFIG_AF_RXRPC_IPV6
case AF_INET6:
return ((u16 __force)peer->srx.transport.sin6.sin6_port -
(u16 __force)srx->transport.sin6.sin6_port) ?:
memcmp(&peer->srx.transport.sin6.sin6_addr,
&srx->transport.sin6.sin6_addr,
sizeof(struct in6_addr));
#endif
default:
BUG();
}
@@ -159,7 +163,9 @@ static void rxrpc_assess_MTU_size(struct rxrpc_peer *peer)
struct rtable *rt;
struct flowi fl;
struct flowi4 *fl4 = &fl.u.ip4;
#ifdef CONFIG_AF_RXRPC_IPV6
struct flowi6 *fl6 = &fl.u.ip6;
#endif
peer->if_mtu = 1500;
@@ -177,6 +183,7 @@ static void rxrpc_assess_MTU_size(struct rxrpc_peer *peer)
dst = &rt->dst;
break;
#ifdef CONFIG_AF_RXRPC_IPV6
case AF_INET6:
fl6->flowi6_iif = LOOPBACK_IFINDEX;
fl6->flowi6_scope = RT_SCOPE_UNIVERSE;
@@ -191,6 +198,7 @@ static void rxrpc_assess_MTU_size(struct rxrpc_peer *peer)
return;
}
break;
#endif
default:
BUG();
@@ -241,9 +249,11 @@ static void rxrpc_init_peer(struct rxrpc_peer *peer, unsigned long hash_key)
case AF_INET:
peer->hdrsize = sizeof(struct iphdr);
break;
#ifdef CONFIG_AF_RXRPC_IPV6
case AF_INET6:
peer->hdrsize = sizeof(struct ipv6hdr);
break;
#endif
default:
BUG();
}