selftests: Emit a warning if getcpu() is missing on 32bit

The VDSO implementation for getcpu() has been wired up on 32bit so warn if
missing.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20221125094216.3663444-4-bigeasy@linutronix.de

diff --git a/tools/testing/selftests/x86/test_vsyscall.c b/tools/testing/selftests/x86/test_vsyscall.c
index 5b45e69..47cab97 100644 (file)
--- 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)