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

From: Shuah Khan
Date: Tue Nov 29 2022 - 16:54:54 EST


On 11/25/22 02:42, Sebastian Andrzej Siewior wrote:
The vsyscall for getcpu has been wired up on 32bit so it can be warned
now if missing.

Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: linux-kselftest@xxxxxxxxxxxxxxx
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
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)

Assuming this is going through x86 tree due to dependencies, here is
my ack

Acked-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>

Let me know if you would like to me pick this up.

thanks,
-- Shuah