[PATCH nft 3/3] evaluate: set evaluation context for set elements

[Florian Westphal <fw@strlen.de>]

This resolves same issue as previous patch when such
expression is used as a set key:

        set z {
                typeof ct zone
-               elements = { 1, 512, 768, 1024, 1280, 1536 }
+               elements = { 1, 2, 3, 4, 5, 6 }
        }

Signed-off-by: Florian Westphal <fw@strlen.de>
---
 src/evaluate.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/evaluate.c b/src/evaluate.c
index 123fc7ab1a28..0b251ab5554c 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -1391,8 +1391,15 @@ static int expr_evaluate_set_elem(struct eval_ctx *ctx, struct expr **expr)
 {
 	struct expr *elem = *expr;
 
-	if (ctx->set && __expr_evaluate_set_elem(ctx, elem) < 0)
-		return -1;
+	if (ctx->set) {
+		const struct expr *key;
+
+		if (__expr_evaluate_set_elem(ctx, elem) < 0)
+			return -1;
+
+		key = ctx->set->key;
+		__expr_set_context(&ctx->ectx, key->dtype, key->byteorder, key->len, 0);
+	}
 
 	if (expr_evaluate(ctx, &elem->key) < 0)
 		return -1;
-- 
2.26.2