src: constify parameter of nft_*_is_set

The functions nft_*_attr_is_set() is doing no modification
so it is possible to type it to const.

Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/rule.c b/src/rule.c
index 37a085f..b1bf64b 100644
--- a/src/rule.c
+++ b/src/rule.c
@@ -73,7 +73,7 @@ void nft_rule_free(struct nft_rule *r)
 }
 EXPORT_SYMBOL(nft_rule_free);
 
-bool nft_rule_attr_is_set(struct nft_rule *r, uint16_t attr)
+bool nft_rule_attr_is_set(const struct nft_rule *r, uint16_t attr)
 {
 	return r->flags & (1 << attr);
 }