788 			  struct expr_parse_ctx *pctx,  in prepare_metric()  argument
796 	expr__ctx_init(pctx);  in prepare_metric()
830 			expr__add_id_val(pctx, n, metric_total);  in prepare_metric()
832 			expr__add_id_val(pctx, n, avg_stats(stats)*scale);  in prepare_metric()
836 		ret = expr__add_ref(pctx, &metric_refs[j]);  in prepare_metric()
857 	struct expr_parse_ctx pctx;  in generic_metric()  local
862 	i = prepare_metric(metric_events, metric_refs, &pctx, cpu, st);  in generic_metric()
867 		if (expr__parse(&ratio, &pctx, metric_expr, runtime) == 0) {  in generic_metric()
903 	expr__ctx_clear(&pctx);  in generic_metric()
908 	struct expr_parse_ctx pctx;  in test_generic_metric()  local
911 	if (prepare_metric(mexp->metric_events, mexp->metric_refs, &pctx, cpu, st) < 0)  in test_generic_metric()
914 	if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1))  in test_generic_metric()
918 	expr__ctx_clear(&pctx);  in test_generic_metric()