nft_expr_first
for ((expr) = nft_expr_first(rule), (last) = nft_expr_last(rule); \
expr = nft_expr_first(rule);
expr = nft_expr_first(rule);
expr = nft_expr_first(rule);
expr = nft_expr_first(rule);
expr = nft_expr_first(rule);
expr = nft_expr_first(rule);