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From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 17 Mar 2020 14:13:44 +0100
Subject: netfilter: nf_tables: move nft_expr_clone() to nf_tables_api.c
Patch-mainline: v5.7-rc1
Git-commit: c604cc691c10cb23ce7fb4ea2c9beb703d321790
References: bsc#1176447

Move the nft_expr_clone() helper function to the core.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 include/net/netfilter/nf_tables.h |    1 +
 net/netfilter/nf_tables_api.c     |   18 ++++++++++++++++++
 net/netfilter/nft_dynset.c        |   17 -----------------
 3 files changed, 19 insertions(+), 17 deletions(-)

--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -846,6 +846,7 @@ static inline void *nft_expr_priv(const
 	return (void *)expr->data;
 }
 
+int nft_expr_clone(struct nft_expr *dst, struct nft_expr *src);
 void nft_expr_destroy(const struct nft_ctx *ctx, struct nft_expr *expr);
 int nft_expr_dump(struct sk_buff *skb, unsigned int attr,
 		  const struct nft_expr *expr);
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -2557,6 +2557,24 @@ err1:
 	return ERR_PTR(err);
 }
 
+int nft_expr_clone(struct nft_expr *dst, struct nft_expr *src)
+{
+	int err;
+
+	if (src->ops->clone) {
+		dst->ops = src->ops;
+		err = src->ops->clone(dst, src);
+		if (err < 0)
+			return err;
+	} else {
+		memcpy(dst, src, src->ops->size);
+	}
+
+	__module_get(src->ops->type->owner);
+
+	return 0;
+}
+
 void nft_expr_destroy(const struct nft_ctx *ctx, struct nft_expr *expr)
 {
 	nf_tables_expr_destroy(ctx, expr);
--- a/net/netfilter/nft_dynset.c
+++ b/net/netfilter/nft_dynset.c
@@ -24,23 +24,6 @@ struct nft_dynset {
 	struct nft_set_binding		binding;
 };
 
-static int nft_expr_clone(struct nft_expr *dst, struct nft_expr *src)
-{
-	int err;
-
-	if (src->ops->clone) {
-		dst->ops = src->ops;
-		err = src->ops->clone(dst, src);
-		if (err < 0)
-			return err;
-	} else {
-		memcpy(dst, src, src->ops->size);
-	}
-
-	__module_get(src->ops->type->owner);
-	return 0;
-}
-
 static void *nft_dynset_new(struct nft_set *set, const struct nft_expr *expr,
 			    struct nft_regs *regs)
 {