[libnftables PATCH 4/4] rule: change type of function to use const

[Eric Leblond <eric@regit.org>]

The function nft_rule_attr_is_set() is doing no modification so it
is possible to type it to const.

Signed-off-by: Eric Leblond <eric@regit.org>
---
 include/libnftables/rule.h | 2 +-
 src/rule.c                 | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/libnftables/rule.h b/include/libnftables/rule.h
index ab61eb8..5496561 100644
--- a/include/libnftables/rule.h
+++ b/include/libnftables/rule.h
@@ -26,7 +26,7 @@ enum {
 };
 
 void nft_rule_attr_unset(struct nft_rule *r, uint16_t attr);
-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);
 void nft_rule_attr_set(struct nft_rule *r, uint16_t attr, const void *data);
 void nft_rule_attr_set_u32(struct nft_rule *r, uint16_t attr, uint32_t val);
 void nft_rule_attr_set_u64(struct nft_rule *r, uint16_t attr, uint64_t val);
diff --git a/src/rule.c b/src/rule.c
index 9dc82b8..dc98a8f 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);
 }
-- 
1.8.3.2