[PATCH 3/3] selftests: Make a warning if getcpu is missing on 32bit.

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Roland Mainz <roland.mainz@nrubsig.org>,
	"H. Peter Anvin" <hpa@zytor.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Ingo Molnar <mingo@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Shuah Khan <shuah@kernel.org>,
	linux-kselftest@vger.kernel.org
Subject: [PATCH 3/3] selftests: Make a warning if getcpu is missing on 32bit.
Date: Fri, 25 Nov 2022 10:42:16 +0100	[thread overview]
Message-ID: <20221125094216.3663444-4-bigeasy@linutronix.de> (raw)
In-Reply-To: <20221125094216.3663444-1-bigeasy@linutronix.de>

The vsyscall for getcpu has been wired up on 32bit so it can be warned
now if missing.

Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 tools/testing/selftests/x86/test_vsyscall.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/x86/test_vsyscall.c b/tools/testing/selftests/x86/test_vsyscall.c
index 5b45e6986aeab..47cab972807c4 100644
--- a/tools/testing/selftests/x86/test_vsyscall.c
+++ b/tools/testing/selftests/x86/test_vsyscall.c
@@ -92,11 +92,8 @@ static void init_vdso(void)
 		printf("[WARN]\tfailed to find time in vDSO\n");
 
 	vdso_getcpu = (getcpu_t)dlsym(vdso, "__vdso_getcpu");
-	if (!vdso_getcpu) {
-		/* getcpu() was never wired up in the 32-bit vDSO. */
-		printf("[%s]\tfailed to find getcpu in vDSO\n",
-		       sizeof(long) == 8 ? "WARN" : "NOTE");
-	}
+	if (!vdso_getcpu)
+		printf("[WARN]\tfailed to find getcpu in vDSO\n");
 }
 
 static int init_vsys(void)
-- 
2.38.1

