openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Stafford Horne 2017-01-12 00:16:05 +09:00 committed by Shuah Khan
parent 4da39ceb26
commit aff985fd07
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/testing/selftests/intel_pstate/aperf.c
View File

@ -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;