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

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Add NFT_CHAIN_POLICY_UNSET to replace hardcoded -1 to
   specify that the chain policy is unset. The chain policy
   field is actually defined as an 8-bit unsigned integer.

2) Remove always true condition reported by smatch in
   chain policy check.

3) Fix element lookup on dynamic sets, from Florian Westphal.

4) Use __u8 in ebtables uapi header, from Masahiro Yamada.

5) Bogus EBUSY when removing flowtable after chain flush,
   from Laura Garcia Liebana.
====================

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

include/net/netfilter/nf_tables.h

@@ -889,6 +889,8 @@ enum nft_chain_flags {
 	NFT_CHAIN_HW_OFFLOAD		= 0x2,
 };
 
+#define NFT_CHAIN_POLICY_UNSET		U8_MAX
+
 /**
  *	struct nft_chain - nf_tables chain
  *
@@ -1181,6 +1183,10 @@ struct nft_flowtable *nft_flowtable_lookup(const struct nft_table *table,
 					   const struct nlattr *nla,
 					   u8 genmask);
 
+void nf_tables_deactivate_flowtable(const struct nft_ctx *ctx,
+				    struct nft_flowtable *flowtable,
+				    enum nft_trans_phase phase);
+
 void nft_register_flowtable_type(struct nf_flowtable_type *type);
 void nft_unregister_flowtable_type(struct nf_flowtable_type *type);