[PATCH nft 1/3] evaluate: move default op lookup into helper

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Split it into its own function, caller is already quite big.

Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
 src/evaluate.c | 43 ++++++++++++++++++++++---------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/src/evaluate.c b/src/evaluate.c
index ed78896..4d741e3 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -1119,6 +1119,26 @@ static int binop_transfer(struct eval_ctx *ctx, struct expr **expr)
 	return 0;
 }
 
+static enum ops expr_defaultop(const struct expr *e)
+{
+	switch (e->ops->type) {
+	case EXPR_RANGE:
+		return OP_RANGE;
+	case EXPR_SET:
+	case EXPR_SET_REF:
+		return OP_LOOKUP;
+	case EXPR_LIST:
+		return OP_FLAGCMP;
+	default:
+		if (e->dtype->basetype != NULL &&
+		    e->dtype->basetype->type == TYPE_BITMASK)
+			return OP_FLAGCMP;
+		break;
+	}
+
+	return OP_EQ;
+}
+
 static int expr_evaluate_relational(struct eval_ctx *ctx, struct expr **expr)
 {
 	struct expr *rel = *expr, *left, *right;
@@ -1131,27 +1151,8 @@ static int expr_evaluate_relational(struct eval_ctx *ctx, struct expr **expr)
 		return -1;
 	right = rel->right;
 
-	if (rel->op == OP_IMPLICIT) {
-		switch (right->ops->type) {
-		case EXPR_RANGE:
-			rel->op = OP_RANGE;
-			break;
-		case EXPR_SET:
-		case EXPR_SET_REF:
-			rel->op = OP_LOOKUP;
-			break;
-		case EXPR_LIST:
-			rel->op = OP_FLAGCMP;
-			break;
-		default:
-			if (right->dtype->basetype != NULL &&
-			    right->dtype->basetype->type == TYPE_BITMASK)
-				rel->op = OP_FLAGCMP;
-			else
-				rel->op = OP_EQ;
-			break;
-		}
-	}
+	if (rel->op == OP_IMPLICIT)
+		rel->op = expr_defaultop(rel->right);
 
 	if (!expr_is_constant(right))
 		return expr_binary_error(ctx->msgs, right, rel,
-- 
2.4.10

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