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From f4344bb4055cab8dc3bbe82a7f3d97fc6fabcb7e Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Tue, 4 Jun 2019 09:19:04 +0200
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Subject: [PATCH] test-cpu-set-util: fix comparison for allocation size
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On i386, __cpu_mask is 4 bytes, so we'd check if c.allocated >= 0, and
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gcc would warn about a bogus comparison. Let's round up.
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Fixes #12726.
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(cherry picked from commit a299ce058b41b21c87f36e77e2c563b0ddd1be0d)
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Related: #1734787
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---
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src/test/test-cpu-set-util.c | 22 +++++++++++-----------
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1 file changed, 11 insertions(+), 11 deletions(-)
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diff --git a/src/test/test-cpu-set-util.c b/src/test/test-cpu-set-util.c
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index 9522582891..3456add989 100644
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--- a/src/test/test-cpu-set-util.c
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+++ b/src/test/test-cpu-set-util.c
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@@ -17,7 +17,7 @@ static void test_parse_cpu_set(void) {
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/* Single value */
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assert_se(parse_cpu_set_full("0", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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assert_se(c.set);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_ISSET_S(0, c.allocated, c.set));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 1);
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@@ -33,7 +33,7 @@ static void test_parse_cpu_set(void) {
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/* Simple range (from CPUAffinity example) */
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assert_se(parse_cpu_set_full("1 2 4", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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assert_se(c.set);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_ISSET_S(1, c.allocated, c.set));
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assert_se(CPU_ISSET_S(2, c.allocated, c.set));
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assert_se(CPU_ISSET_S(4, c.allocated, c.set));
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@@ -50,7 +50,7 @@ static void test_parse_cpu_set(void) {
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/* A more interesting range */
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assert_se(parse_cpu_set_full("0 1 2 3 8 9 10 11", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 8);
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for (cpu = 0; cpu < 4; cpu++)
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assert_se(CPU_ISSET_S(cpu, c.allocated, c.set));
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@@ -68,7 +68,7 @@ static void test_parse_cpu_set(void) {
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/* Quoted strings */
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assert_se(parse_cpu_set_full("8 '9' 10 \"11\"", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 4);
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for (cpu = 8; cpu < 12; cpu++)
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assert_se(CPU_ISSET_S(cpu, c.allocated, c.set));
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@@ -83,7 +83,7 @@ static void test_parse_cpu_set(void) {
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/* Use commas as separators */
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assert_se(parse_cpu_set_full("0,1,2,3 8,9,10,11", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 8);
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for (cpu = 0; cpu < 4; cpu++)
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assert_se(CPU_ISSET_S(cpu, c.allocated, c.set));
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@@ -96,7 +96,7 @@ static void test_parse_cpu_set(void) {
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/* Commas with spaces (and trailing comma, space) */
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assert_se(parse_cpu_set_full("0, 1, 2, 3, 4, 5, 6, 7, 63, ", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 9);
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for (cpu = 0; cpu < 8; cpu++)
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assert_se(CPU_ISSET_S(cpu, c.allocated, c.set));
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@@ -113,7 +113,7 @@ static void test_parse_cpu_set(void) {
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/* Ranges */
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assert_se(parse_cpu_set_full("0-3,8-11", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 8);
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for (cpu = 0; cpu < 4; cpu++)
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assert_se(CPU_ISSET_S(cpu, c.allocated, c.set));
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@@ -126,7 +126,7 @@ static void test_parse_cpu_set(void) {
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/* Ranges with trailing comma, space */
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assert_se(parse_cpu_set_full("0-3 8-11, ", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 8);
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for (cpu = 0; cpu < 4; cpu++)
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assert_se(CPU_ISSET_S(cpu, c.allocated, c.set));
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@@ -143,13 +143,13 @@ static void test_parse_cpu_set(void) {
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/* Negative range (returns empty cpu_set) */
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assert_se(parse_cpu_set_full("3-0", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 0);
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cpu_set_reset(&c);
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/* Overlapping ranges */
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assert_se(parse_cpu_set_full("0-7 4-11", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 12);
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for (cpu = 0; cpu < 12; cpu++)
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assert_se(CPU_ISSET_S(cpu, c.allocated, c.set));
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@@ -164,7 +164,7 @@ static void test_parse_cpu_set(void) {
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/* Mix ranges and individual CPUs */
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assert_se(parse_cpu_set_full("0,2 4-11", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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- assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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+ assert_se(c.allocated >= DIV_ROUND_UP(sizeof(__cpu_mask), 8));
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assert_se(CPU_COUNT_S(c.allocated, c.set) == 10);
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assert_se(CPU_ISSET_S(0, c.allocated, c.set));
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assert_se(CPU_ISSET_S(2, c.allocated, c.set));
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