net: remove inet6_reqsk_alloc

Since pktops is only used for IPv6 only and opts is used for IPv4
only, we can move these fields into a union and this allows us to drop
the inet6_reqsk_alloc function as after this change it becomes
equivalent with inet_reqsk_alloc.

This patch also fixes a kmemcheck issue in the IPv6 stack: the flags
field was not annotated after a request_sock was allocated.

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index b1edf17..a829b77 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -88,8 +88,10 @@ struct inet_request_sock {
 				acked	   : 1,
 				no_srccheck: 1;
 	kmemcheck_bitfield_end(flags);
-	struct ip_options_rcu	*opt;
-	struct sk_buff		*pktopts;
+	union {
+		struct ip_options_rcu	*opt;
+		struct sk_buff		*pktopts;
+	};
 	u32                     ir_mark;
 };