[PATCH 6/7] Subject: [PATCH] selftests/powerpc: Add common test utilities header

[Shirisha G <shirisha@linux.ibm.com>]

Introduce a shared header `utils.h` providing basic test harness
macros and timeout handling for PowerPC selftests. This consolidates
common functionality used across RTAS, NVRAM, FADump, and other
selftests.

The header defines:
- SKIP_IF() macro for conditional skip
- FAIL_IF() macro for unconditional failure
- FAIL_IF_MSG() macro for failure with message
- test_harness_set_timeout() helper for alarm-based timeouts

This reduces duplication and ensures consistent behavior across
selftests.

Signed-off-by: Shirisha G <shirisha@linux.ibm.com>
---
 tools/testing/selftests/powerpc/rtas/utils.h | 39 ++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 tools/testing/selftests/powerpc/rtas/utils.h

diff --git a/tools/testing/selftests/powerpc/rtas/utils.h b/tools/testing/selftests/powerpc/rtas/utils.h
new file mode 100644
index 000000000000..58eef7642a3f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/rtas/utils.h
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#ifndef _RTAS_TEST_UTILS_H
+#define _RTAS_TEST_UTILS_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+/* Test macros */
+#define SKIP_IF(x) \
+	do { \
+		if (x) { \
+			fprintf(stderr, "SKIP: %s\n", #x); \
+			exit(4); \
+		} \
+	} while (0)
+
+#define FAIL_IF(x) \
+	do { \
+		if (x) { \
+			fprintf(stderr, "FAIL: %s\n", #x); \
+			exit(1); \
+		} \
+	} while (0)
+
+#define FAIL_IF_MSG(x, fmt, ...) \
+	do { \
+		if (x) { \
+			fprintf(stderr, "FAIL: " fmt "\n", ##__VA_ARGS__); \
+			exit(1); \
+		} \
+	} while (0)
+
+static inline void test_harness_set_timeout(int seconds)
+{
+	alarm(seconds);
+}
+
+#endif /* _RTAS_TEST_UTILS_H */
-- 
2.43.5