Use parse_rtattr_nested

(Logical change 1.129)

tc/f_u32.c

@@ -956,9 +956,7 @@ static int u32_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt, __
 	if (opt == NULL)
 		return 0;
 
-	memset(tb, 0, sizeof(tb));
-	if (opt)
-		parse_rtattr(tb, TCA_U32_MAX, RTA_DATA(opt), RTA_PAYLOAD(opt));
+	parse_rtattr_nested(tb, TCA_U32_MAX, opt);
 
 	if (handle) {
 		SPRINT_BUF(b1);

tc/m_action.c

@@ -229,8 +229,7 @@ tc_print_one_action(FILE * f, struct rtattr *arg)
 	if (arg == NULL)
 		return -1;
 
-	memset(tb, 0, sizeof (tb));
-	parse_rtattr(tb, TCA_ACT_MAX, RTA_DATA(arg), RTA_PAYLOAD(arg));
+	parse_rtattr_nested(tb, TCA_ACT_MAX, arg);
 	if (tb[TCA_ACT_KIND] == NULL) {
 		fprintf(stderr, "NULL Action!\n");
 		return -1;
@@ -272,8 +271,7 @@ tc_print_action(FILE * f, const struct rtattr *arg)
 	if (arg == NULL)
 		return 0;
 
-	memset(tb, 0, sizeof (tb));
-	parse_rtattr(tb, TCA_ACT_MAX_PRIO, RTA_DATA(arg), RTA_PAYLOAD(arg));
+	parse_rtattr_nested(tb, TCA_ACT_MAX_PRIO, arg);
 
 	if (tab_flush && NULL != tb[0]  && NULL == tb[1]) {
 		int ret = tc_print_one_action(f, tb[0]);
@@ -310,7 +308,6 @@ static int do_print_action(const struct sockaddr_nl *who,
 		return -1;
 	}
 
-	memset(tb, 0, sizeof(tb));
 	parse_rtattr(tb, TCAA_MAX, TA_RTA(t), len);
 
 	if (NULL == tb[TCA_ACT_TAB]) {

tc/q_hfsc.c

@@ -239,8 +239,7 @@ hfsc_print_class_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 	if (opt == NULL)
 		return 0;
 
-	memset(tb, 0, sizeof(tb));
-	parse_rtattr(tb, TCA_HFSC_MAX, RTA_DATA(opt), RTA_PAYLOAD(opt));
+	parse_rtattr_nested(tb, TCA_HFSC_MAX, opt);
 
 	if (tb[TCA_HFSC_RSC]) {
 		if (RTA_PAYLOAD(tb[TCA_HFSC_RSC]) < sizeof(*rsc))