From: Stafford Horne <shorne@gmail.com>
Date: Wed, 11 Jan 2017 15:16:05 +0000 (+0900)
Subject: selftests/intel_pstate: Fix warning on loop index overflow
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=aff985fd07cf785fbd1544194f8fae08333e523e;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

selftests/intel_pstate: Fix warning on loop index overflow

The build was showing the warning:
 aperf.c:60:27: warning: iteration 2147483647 invokes undefined behavior
 [-Waggressive-loop-optimizations]
  for (i=0; i<0x8fffffff; i++) {

This change sets i, cpu and fd to unsigned int as they should not need
to be signed.

Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
---

diff --git a/tools/testing/selftests/intel_pstate/aperf.c b/tools/testing/selftests/intel_pstate/aperf.c
index 6046e183f4ad..cd72f3dc83e9 100644
--- a/tools/testing/selftests/intel_pstate/aperf.c
+++ b/tools/testing/selftests/intel_pstate/aperf.c
@@ -14,7 +14,7 @@ void usage(char *name) {
 }
 
 int main(int argc, char **argv) {
-	int i, cpu, fd;
+	unsigned int i, cpu, fd;
 	char msr_file_name[64];
 	long long tsc, old_tsc, new_tsc;
 	long long aperf, old_aperf, new_aperf;