linux-kernel - [PATCH v2 08/14] selftests: vDSO: vdso_test_abi: Use system call wrappers from vdso

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Message-Id: <20251113-vdso-test-types-v2-8-0427eff70d08@linutronix.de>
Date: Thu, 13 Nov 2025 16:30:24 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Vincenzo Frascino <vincenzo.frascino@....com>, 
 Shuah Khan <shuah@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH v2 08/14] selftests: vDSO: vdso_test_abi: Use system call
 wrappers from vdso_syscalls.h

Using syscall(SYS_getcpu) is problematic for the reasons outlined in
vdso_syscalls.h.

Use the wrappers from the utility header instead.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 tools/testing/selftests/vDSO/vdso_test_abi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/vDSO/vdso_test_abi.c b/tools/testing/selftests/vDSO/vdso_test_abi.c
index ff142b3b9075b18e60a46b77492d285e9937fa71..5a1bd0c2742ae14053d826c8d9f3bdc1018d91f3 100644
--- a/tools/testing/selftests/vDSO/vdso_test_abi.c
+++ b/tools/testing/selftests/vDSO/vdso_test_abi.c
@@ -19,6 +19,7 @@
 #include "../kselftest.h"
 #include "vdso_config.h"
 #include "vdso_call.h"
+#include "vdso_syscalls.h"
 #include "vdso_types.h"
 #include "parse_vdso.h"
 
@@ -157,7 +158,7 @@ static void vdso_test_clock_getres(__kernel_clockid_t clk_id)
 	}
 
 	struct __kernel_old_timespec ts;
-	struct timespec sys_ts;
+	struct __kernel_timespec sys_ts;
 	long ret = VDSO_CALL(vdso_clock_getres, 2, clk_id, &ts);
 
 	if (ret == 0) {
@@ -167,7 +168,7 @@ static void vdso_test_clock_getres(__kernel_clockid_t clk_id)
 		clock_getres_fail++;
 	}
 
-	ret = syscall(SYS_clock_getres, clk_id, &sys_ts);
+	ret = sys_clock_getres(clk_id, &sys_ts);
 	if (ret == 0) {
 		ksft_print_msg("The syscall resolution is %lld %lld\n",
 				(long long)sys_ts.tv_sec, (long long)sys_ts.tv_nsec);

-- 
2.51.0