[NET]: should explicitely initialize atomic_t field in struct dst_ops

All but one struct dst_ops static initializations miss explicit
initialization of entries field.

As this field is atomic_t, we should use ATOMIC_INIT(0), and not
rely on atomic_t implementation.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 162cb66..bf6b665 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -107,6 +107,7 @@
 	.update_pmtu		=	ip6_rt_update_pmtu,
 	.local_out		=	ip6_local_out,
 	.entry_size		=	sizeof(struct rt6_info),
+	.entries		=	ATOMIC_INIT(0),
 };
 
 static void ip6_rt_blackhole_update_pmtu(struct dst_entry *dst, u32 mtu)
@@ -120,6 +121,7 @@
 	.check			=	ip6_dst_check,
 	.update_pmtu		=	ip6_rt_blackhole_update_pmtu,
 	.entry_size		=	sizeof(struct rt6_info),
+	.entries		=	ATOMIC_INIT(0),
 };
 
 struct rt6_info ip6_null_entry = {