Add sprint_ticks() function and use in CBQ

[IPROUTE]: Add sprint_ticks() function and use in CBQ

Add helper function to print ticks to avoid assumptions about clock
resolution in CBQ.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>

tc/q_cbq.c

@@ -418,6 +418,7 @@ static int cbq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 	struct tc_cbq_wrropt *wrr = NULL;
 	struct tc_cbq_fopt *fopt = NULL;
 	struct tc_cbq_ovl *ovl = NULL;
+	SPRINT_BUF(b1);
 
 	if (opt == NULL)
 		return 0;
@@ -500,17 +501,17 @@ static int cbq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 	if (lss && show_details) {
 		fprintf(f, "\nlevel %u ewma %u avpkt %ub ", lss->level, lss->ewma_log, lss->avpkt);
 		if (lss->maxidle) {
-			fprintf(f, "maxidle %luus ", tc_core_tick2time(lss->maxidle>>lss->ewma_log));
+			fprintf(f, "maxidle %s ", sprint_ticks(lss->maxidle>>lss->ewma_log, b1));
 			if (show_raw)
 				fprintf(f, "[%08x] ", lss->maxidle);
 		}
 		if (lss->minidle!=0x7fffffff) {
-			fprintf(f, "minidle %luus ", tc_core_tick2time(lss->minidle>>lss->ewma_log));
+			fprintf(f, "minidle %s ", sprint_ticks(lss->minidle>>lss->ewma_log, b1));
 			if (show_raw)
 				fprintf(f, "[%08x] ", lss->minidle);
 		}
 		if (lss->offtime) {
-			fprintf(f, "offtime %luus ", tc_core_tick2time(lss->offtime));
+			fprintf(f, "offtime %s ", sprint_ticks(lss->offtime, b1));
 			if (show_raw)
 				fprintf(f, "[%08x] ", lss->offtime);
 		}

tc/q_netem.c

@@ -120,12 +120,6 @@ static int get_ticks(__u32 *ticks, const char *str)
 	return 0;
 }
 
-static char *sprint_ticks(__u32 ticks, char *buf)
-{
-	return sprint_usecs(tc_core_tick2usec(ticks), buf);
-}
-
-
 static int netem_parse_opt(struct qdisc_util *qu, int argc, char **argv,
 			   struct nlmsghdr *n)
 {

tc/tc_util.c

@@ -255,6 +255,11 @@ char * sprint_time(__u32 time, char *buf)
 	return buf;
 }
 
+char * sprint_ticks(__u32 ticks, char *buf)
+{
+	return sprint_time(tc_core_tick2time(ticks), buf);
+}
+
 int get_size(unsigned *size, const char *str)
 {
 	double sz;

tc/tc_util.h

@@ -57,6 +57,7 @@ extern char * sprint_size(__u32 size, char *buf);
 extern char * sprint_qdisc_handle(__u32 h, char *buf);
 extern char * sprint_tc_classid(__u32 h, char *buf);
 extern char * sprint_time(__u32 time, char *buf);
+extern char * sprint_ticks(__u32 ticks, char *buf);
 extern char * sprint_percent(__u32 percent, char *buf);
 
 extern void print_tcstats_attr(FILE *fp, struct rtattr *tb[], char *prefix, struct rtattr **xstats);