src: expr: add and use expr_name helper

Currently callers use expr->ops->name, but follouwp patch will remove the
ops pointer from struct expr.  So add this helper and use it everywhere.

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mergesort.c b/src/mergesort.c
index a8353203..f2e38bc2 100644
--- a/src/mergesort.c
+++ b/src/mergesort.c
@@ -44,7 +44,7 @@ static int expr_msort_cmp(const struct expr *e1, const struct expr *e2)
 	case EXPR_MAPPING:
 		return expr_msort_cmp(e1->left, e2->left);
 	default:
-		BUG("Unknown expression %s\n", e1->ops->name);
+		BUG("Unknown expression %s\n", expr_name(e1));
 	}
 }