net: reduce structures when XFRM=n

ifdef out
* struct sk_buff::sp		(pointer)
* struct dst_entry::xfrm	(pointer)
* struct sock::sk_policy	(2 pointers)

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 21ce7e1b2284..ffb2c5705432 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1399,7 +1399,9 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
                                 rt->u.dst.path          = &rt->u.dst;
                                 rt->u.dst.neighbour     = NULL;
                                 rt->u.dst.hh            = NULL;
+#ifdef CONFIG_XFRM
                                 rt->u.dst.xfrm          = NULL;
+#endif
                                 rt->rt_genid            = rt_genid(net);
                                 rt->rt_flags            |= RTCF_REDIRECTED;