src: constify nft_*_attr_set and nft_*_attr_set_str

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/expr.c b/src/expr.c
index 0b06aed..3a66986 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -90,7 +90,7 @@ nft_rule_expr_set_u64(struct nft_rule_expr *expr, uint16_t type, uint64_t data)
 EXPORT_SYMBOL(nft_rule_expr_set_u64);
 
 void
-nft_rule_expr_set_str(struct nft_rule_expr *expr, uint16_t type, char *str)
+nft_rule_expr_set_str(struct nft_rule_expr *expr, uint16_t type, const char *str)
 {
 	nft_rule_expr_set(expr, type, str, strlen(str)+1);
 }