7 files changed, 58 insertions, 12 deletions
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 20a2992901c2..8c3587d5c308 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -26,6 +26,9 @@
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 #include <net/netns/conntrack.h>
 #endif
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+#include <net/netns/flow_table.h>
+#endif
 #include <net/netns/nftables.h>
 #include <net/netns/xfrm.h>
 #include <net/netns/mpls.h>
@@ -142,6 +145,9 @@ struct net {
 #if defined(CONFIG_NF_TABLES) || defined(CONFIG_NF_TABLES_MODULE)
 	struct netns_nftables	nft;
 #endif
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+	struct netns_ft ft;
+#endif
 #endif
 #ifdef CONFIG_WEXT_CORE
 	struct sk_buff_head	wext_nlevents;
diff --git a/include/net/netfilter/nf_conntrack_timeout.h b/include/net/netfilter/nf_conntrack_timeout.h
index fea258983d23..9fdaba911de6 100644
--- a/include/net/netfilter/nf_conntrack_timeout.h
+++ b/include/net/netfilter/nf_conntrack_timeout.h
@@ -105,7 +105,7 @@ struct nf_ct_timeout_hooks {
 	void (*timeout_put)(struct nf_ct_timeout *timeout);
 };
 
-extern const struct nf_ct_timeout_hooks *nf_ct_timeout_hook;
+extern const struct nf_ct_timeout_hooks __rcu *nf_ct_timeout_hook;
 #endif
 
 #endif /* _NF_CONNTRACK_TIMEOUT_H */
diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h
index 64daafd1fc41..d5326c44b453 100644
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -335,4 +335,25 @@ static inline __be16 nf_flow_pppoe_proto(const struct sk_buff *skb)
 	return 0;
 }
 
+#define NF_FLOW_TABLE_STAT_INC(net, count) __this_cpu_inc((net)->ft.stat->count)
+#define NF_FLOW_TABLE_STAT_DEC(net, count) __this_cpu_dec((net)->ft.stat->count)
+#define NF_FLOW_TABLE_STAT_INC_ATOMIC(net, count)	\
+	this_cpu_inc((net)->ft.stat->count)
+#define NF_FLOW_TABLE_STAT_DEC_ATOMIC(net, count)	\
+	this_cpu_dec((net)->ft.stat->count)
+
+#ifdef CONFIG_NF_FLOW_TABLE_PROCFS
+int nf_flow_table_init_proc(struct net *net);
+void nf_flow_table_fini_proc(struct net *net);
+#else
+static inline int nf_flow_table_init_proc(struct net *net)
+{
+	return 0;
+}
+
+static inline void nf_flow_table_fini_proc(struct net *net)
+{
+}
+#endif /* CONFIG_NF_FLOW_TABLE_PROCFS */
+
 #endif /* _NF_FLOW_TABLE_H */
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h
index 987111ae5240..e9eb01e99d2f 100644
--- a/include/net/netfilter/nf_nat.h
+++ b/include/net/netfilter/nf_nat.h
@@ -104,7 +104,7 @@ unsigned int
 nf_nat_inet_fn(void *priv, struct sk_buff *skb,
 	       const struct nf_hook_state *state);
 
-static inline int nf_nat_initialized(struct nf_conn *ct,
+static inline int nf_nat_initialized(const struct nf_conn *ct,
 				     enum nf_nat_manip_type manip)
 {
 	if (manip == NF_NAT_MANIP_SRC)
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 64cf655c818c..8bfb9c74afbf 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -157,11 +157,26 @@ static inline void nft_reg_store16(u32 *dreg, u16 val)
 	*(u16 *)dreg = val;
 }
 
+static inline void nft_reg_store_be16(u32 *dreg, __be16 val)
+{
+	nft_reg_store16(dreg, (__force __u16)val);
+}
+
 static inline u16 nft_reg_load16(const u32 *sreg)
 {
 	return *(u16 *)sreg;
 }
 
+static inline __be16 nft_reg_load_be16(const u32 *sreg)
+{
+	return (__force __be16)nft_reg_load16(sreg);
+}
+
+static inline __be32 nft_reg_load_be32(const u32 *sreg)
+{
+	return *(__force __be32 *)sreg;
+}
+
 static inline void nft_reg_store64(u32 *dreg, u64 val)
 {
 	put_unaligned(val, (u64 *)dreg);
diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index 0ea7c55cea4d..1223af68cd9a 100644
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -56,16 +56,6 @@ struct nft_immediate_expr {
 	u8			dlen;
 };
 
-/* Calculate the mask for the nft_cmp_fast expression. On big endian the
- * mask needs to include the *upper* bytes when interpreting that data as
- * something smaller than the full u32, therefore a cpu_to_le32 is done.
- */
-static inline u32 nft_cmp_fast_mask(unsigned int len)
-{
-	return cpu_to_le32(~0U >> (sizeof_field(struct nft_cmp_fast_expr,
-						data) * BITS_PER_BYTE - len));
-}
-
 extern const struct nft_expr_ops nft_cmp_fast_ops;
 extern const struct nft_expr_ops nft_cmp16_fast_ops;
 
diff --git a/include/net/netns/flow_table.h b/include/net/netns/flow_table.h
new file mode 100644
index 000000000000..1c5fc657e267
--- /dev/null
+++ b/include/net/netns/flow_table.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NETNS_FLOW_TABLE_H
+#define __NETNS_FLOW_TABLE_H
+
+struct nf_flow_table_stat {
+	unsigned int count_wq_add;
+	unsigned int count_wq_del;
+	unsigned int count_wq_stats;
+};
+
+struct netns_ft {
+	struct nf_flow_table_stat __percpu *stat;
+};
+#endif