[PATCH 1/5, V2, libnftnl] rule: Add const modifier to rule field of expression iterator

[Carlos Falgueras García <carlosfg@xxxxxxxxxx>]

Signed-off-by: Carlos Falgueras García <carlosfg@xxxxxxxxxx>
---
 include/libnftnl/rule.h | 2 +-
 src/rule.c              | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/libnftnl/rule.h b/include/libnftnl/rule.h
index 2776a77..09af96c 100644
--- a/include/libnftnl/rule.h
+++ b/include/libnftnl/rule.h
@@ -70,7 +70,7 @@ int nftnl_expr_foreach(struct nftnl_rule *r,
 
 struct nftnl_expr_iter;
 
-struct nftnl_expr_iter *nftnl_expr_iter_create(struct nftnl_rule *r);
+struct nftnl_expr_iter *nftnl_expr_iter_create(const struct nftnl_rule *r);
 struct nftnl_expr *nftnl_expr_iter_next(struct nftnl_expr_iter *iter);
 void nftnl_expr_iter_destroy(struct nftnl_expr_iter *iter);
 
diff --git a/src/rule.c b/src/rule.c
index a0edca7..30b8b5e 100644
--- a/src/rule.c
+++ b/src/rule.c
@@ -1026,11 +1026,11 @@ int nftnl_expr_foreach(struct nftnl_rule *r,
 EXPORT_SYMBOL_ALIAS(nftnl_expr_foreach, nft_rule_expr_foreach);
 
 struct nftnl_expr_iter {
-	struct nftnl_rule		*r;
+	const struct nftnl_rule	*r;
 	struct nftnl_expr	*cur;
 };
 
-struct nftnl_expr_iter *nftnl_expr_iter_create(struct nftnl_rule *r)
+struct nftnl_expr_iter *nftnl_expr_iter_create(const struct nftnl_rule *r)
 {
 	struct nftnl_expr_iter *iter;
 
-- 
2.8.3

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