From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 19 Dec 2017 14:07:52 +0100
Subject: [PATCH] netfilter: nf_tables: remove flag field from struct
 nft_af_info

Replace it by a direct check for the netdev protocol family.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -960,10 +960,6 @@ struct nft_table {
 	char				*name;
 };
 
-enum nft_af_flags {
-	NFT_AF_NEEDS_DEV	= (1 << 0),
-};
-
 /**
  *	struct nft_af_info - nf_tables address family info
  *
@@ -971,14 +967,12 @@ enum nft_af_flags {
  *	@family: address family
  *	@owner: module owner
  *	@tables: used internally
- *	@flags: family flags
  */
 struct nft_af_info {
 	struct list_head		list;
 	int				family;
 	struct module			*owner;
 	struct list_head		tables;
-	u32				flags;
 };
 
 int nft_register_afinfo(struct net *, struct nft_af_info *);
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1391,7 +1391,7 @@ static int nft_chain_parse_hook(struct n
 	hook->type = type;
 
 	hook->dev = NULL;
-	if (afi->flags & NFT_AF_NEEDS_DEV) {
+	if (afi->family == NFPROTO_NETDEV) {
 		char ifname[IFNAMSIZ];
 
 		if (!ha[NFTA_HOOK_DEV]) {
--- a/net/netfilter/nf_tables_netdev.c
+++ b/net/netfilter/nf_tables_netdev.c
@@ -41,7 +41,6 @@ nft_do_chain_netdev(void *priv, struct s
 static struct nft_af_info nft_af_netdev __read_mostly = {
 	.family		= NFPROTO_NETDEV,
 	.owner		= THIS_MODULE,
-	.flags		= NFT_AF_NEEDS_DEV,
 };
 
 static int nf_tables_netdev_init_net(struct net *net)