linux-kernel - [PATCH 1/2] selftests/intel_pstate: fix operand expected

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Message-ID: <20241022200346.5610-1-alessandro.zanni87@gmail.com>
Date: Tue, 22 Oct 2024 22:03:44 +0200
From: Alessandro Zanni <alessandro.zanni87@...il.com>
To: shuah@...nel.org
Cc: Alessandro Zanni <alessandro.zanni87@...il.com>,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	skhan@...uxfoundation.org,
	anupnewsmail@...il.com
Subject: [PATCH 1/2] selftests/intel_pstate: fix operand expected

Running "make kselftest TARGETS=intel_pstate" results in
the following errors:
- ./run.sh: line 90: / 1000: syntax error: operand expected
(error token is "/ 1000")
- ./run.sh: line 92: / 1000: syntax error: operand expected
(error token is "/ 1000")

This fix allows to have cross-platform compatibility when
using arithmetic expression with command substitutions.

Signed-off-by: Alessandro Zanni <alessandro.zanni87@...il.com>
---
 tools/testing/selftests/intel_pstate/run.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/intel_pstate/run.sh b/tools/testing/selftests/intel_pstate/run.sh
index e7008f614ad7..0c1b6c1308a4 100755
--- a/tools/testing/selftests/intel_pstate/run.sh
+++ b/tools/testing/selftests/intel_pstate/run.sh
@@ -87,9 +87,9 @@ mkt_freq=${_mkt_freq}0
 
 # Get the ranges from cpupower
 _min_freq=$(cpupower frequency-info -l | tail -1 | awk ' { print $1 } ')
-min_freq=$(($_min_freq / 1000))
+min_freq=$((_min_freq / 1000))
 _max_freq=$(cpupower frequency-info -l | tail -1 | awk ' { print $2 } ')
-max_freq=$(($_max_freq / 1000))
+max_freq=$((_max_freq / 1000))
 
 
 [ $EVALUATE_ONLY -eq 0 ] && for freq in `seq $max_freq -100 $min_freq`
-- 
2.43.0


>From d6500cf7c800bd39ae3ef2930cece5b3be460c0b Mon Sep 17 00:00:00 2001
From: Alessandro Zanni <alessandro.zanni87@...il.com>
Date: Tue, 22 Oct 2024 17:22:13 +0200
Subject: [PATCH 2/2] selftests/intel_pstate: cpupower command not found
To: shuah@...nel.org
Cc: linux-kselftest@...r.kernel.org,
    linux-kernel@...r.kernel.org,
    skhan@...uxfoundation.org,
    anupnewsmail@...il.com

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.

Signed-off-by: Alessandro Zanni <alessandro.zanni87@...il.com>
---
 tools/testing/selftests/intel_pstate/run.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/intel_pstate/run.sh b/tools/testing/selftests/intel_pstate/run.sh
index 0c1b6c1308a4..6a3b8503264e 100755
--- 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 () {
-- 
2.43.0