new file mode 100644
@@ -0,0 +1 @@
+/cpuidle01
new file mode 100644
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2026 Jinseok Kim <always.starving0@gmail.com>
+ */
+
+/*\
+ * Basic cpuidle sysfs smoke test.
+ *
+ * Verify that selected cpuidle sysfs files are readable.
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "tst_test.h"
+
+#define CPUIDLE_PATH "/sys/devices/system/cpu/cpuidle"
+
+static struct tcases {
+ const char *name;
+} tcases[] = {
+ { "current_governor_ro" },
+ { "current_driver" },
+};
+
+static void verify_cpuidle(unsigned int i)
+{
+ int fd;
+ char path[PATH_MAX];
+ char buf[32];
+
+ snprintf(path, sizeof(path), "%s/%s", CPUIDLE_PATH, tcases[i].name);
+
+ fd = SAFE_OPEN(path, O_RDONLY);
+
+ SAFE_READ(0, fd, buf, sizeof(buf));
+ SAFE_CLOSE(fd);
+
+ tst_res(TPASS, "%s read successfully", path);
+}
+
+static void setup(void)
+{
+ if (access(CPUIDLE_PATH, R_OK))
+ tst_brk(TCONF, "%s is not available", CPUIDLE_PATH);
+}
+
+static struct tst_test test = {
+ .setup = setup,
+ .tcnt = ARRAY_SIZE(tcases),
+ .test = verify_cpuidle,
+};
deleted file mode 100755
@@ -1,58 +0,0 @@
-#! /bin/sh
-#
-# Copyright (c) International Business Machines Corp., 2001
-# Author: Nageswara R Sastry <nasastry@in.ibm.com>
-#
-# This program is free software; you can redistribute it and#or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
-#
-
-export TCID="Power_Management04"
-export TST_TOTAL=1
-
-. test.sh
-. pm_include.sh
-
-check_cpuidle_sysfs_files() {
- RC=0
- if [ -d /sys/devices/system/cpu/cpuidle ] ; then
- for files in current_governor_ro current_driver
- do
- cat /sys/devices/system/cpu/cpuidle/${files} \
- >/dev/null 2>&1
- if [ $? -ne 0 ] ; then
- echo "${0}: FAIL: cat ${files}"
- RC=1
- fi
- done
- fi
- if [ ${RC} -eq 0 ] ; then
- echo "${0}: PASS: Checking cpu idle sysfs files"
- else
- echo "${0}: FAIL: Checking cpu idle sysfs files"
- fi
- return $RC
-}
-
-# Checking test environment
-check_arch
-
-# Checking cpuidle sysfs interface files
-if check_cpuidle_sysfs_files ; then
- tst_resm TPASS "CPUIDLE sysfs tests passed"
-else
- tst_resm TFAIL "CPUIDLE sysfs tests failed"
-fi
-
-tst_exit
Convert the cpuidle sysfs smoke test from shell to C using the modern LTP test API. The new implementation preserves the original test semantics while removing shell dependencies. Signed-off-by: Jinseok Kim <always.starving0@gmail.com> --- testcases/kernel/power_management/.gitignore | 1 + testcases/kernel/power_management/cpuidle01.c | 52 +++++++++++++++++ .../kernel/power_management/runpwtests04.sh | 58 ------------------- 3 files changed, 53 insertions(+), 58 deletions(-) create mode 100644 testcases/kernel/power_management/.gitignore create mode 100644 testcases/kernel/power_management/cpuidle01.c delete mode 100755 testcases/kernel/power_management/runpwtests04.sh -- 2.43.0