selftests/intel_pstate: check if cpupower is installed

Running "make kselftest TARGETS=intel_pstate" results in the
following errors:
- ./run.sh: line 89: cpupower: command not found
- ./run.sh: line 91: cpupower: command not found
if the cpupower is not installed.

Since the test depends on cpupower, this patch stops the test if the
cpupower is not installed.

Link: https://lore.kernel.org/all/cc01753c8dab0f33669a5a0fc162544078055bd1.1730141362.git.alessandro.zanni87@gmail.com/
Signed-off-by: Alessandro Zanni <alessandro.zanni87@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

diff --git a/tools/testing/selftests/intel_pstate/run.sh b/tools/testing/selftests/intel_pstate/run.sh
index 0c1b6c1308a46f7cae1105738f78eecab995b114..6a3b8503264e1555604f7ebbabe77a4f3b00dd54 100755 (executable)
--- a/tools/testing/selftests/intel_pstate/run.sh
+++ b/tools/testing/selftests/intel_pstate/run.sh
@@ -44,6 +44,11 @@ if [ $UID != 0 ] && [ $EVALUATE_ONLY == 0 ]; then
     exit $ksft_skip
 fi
 
+if ! command -v cpupower &> /dev/null; then
+       echo $msg cpupower could not be found, please install it >&2
+       exit $ksft_skip
+fi
+
 max_cpus=$(($(nproc)-1))
 
 function run_test () {