From: Leslie Monis <lesliemonis@gmail.com>
Date: Thu, 5 Mar 2020 16:25:40 +0000 (+0530)
Subject: tc: pie: change maximum integer value of tc_pie_xstats->prob
X-Git-Tag: v5.7.0~59
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92cfe3260e9110c3d33627847b6eaa153664c79c;p=thirdparty%2Fiproute2.git

tc: pie: change maximum integer value of tc_pie_xstats->prob

Kernel commit 105e808c1da2 ("pie: remove pie_vars->accu_prob_overflows"),
changes the maximum value of tc_pie_xstats->prob from (2^64 - 1) to
(2^56 - 1).

Signed-off-by: Mohit P. Tahiliani <tahiliani@nitk.edu.in>
Signed-off-by: Gautam Ramakrishnan <gautamramk@gmail.com>
Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
---

diff --git a/tc/q_pie.c b/tc/q_pie.c
index 709a78b4c..e69396526 100644
--- a/tc/q_pie.c
+++ b/tc/q_pie.c
@@ -223,9 +223,9 @@ static int pie_print_xstats(struct qdisc_util *qu, FILE *f,
 
 	st = RTA_DATA(xstats);
 
-	/* prob is returned as a fracion of maximum integer value */
+	/* prob is returned as a fracion of (2^56 - 1) */
 	print_float(PRINT_ANY, "prob", "  prob %lg",
-		    (double)st->prob / (double)UINT64_MAX);
+		    (double)st->prob / (double)(UINT64_MAX >> 8));
 	print_uint(PRINT_JSON, "delay", NULL, st->delay);
 	print_string(PRINT_FP, NULL, " delay %s", sprint_time(st->delay, b1));