Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

1) UAF in chain binding support from previous batch, from Dan Carpenter.

2) Queue up delayed work to expire connections with no destination,
   from Andrew Sy Kim.

3) Use fallthrough pseudo-keyword, from Gustavo A. R. Silva.

4) Replace HTTP links with HTTPS, from Alexander A. Klimov.

5) Remove superfluous null header checks in ip6tables, from
   Gaurav Singh.

6) Add extended netlink error reporting for expression.

7) Report EEXIST on overlapping chain, set elements and flowtable
   devices.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>