* [PATCH] selftests/proc: proc-pid-vm: fix unused variable warning on non-x86
@ 2026-10-11 22:33 Sasha Levin
2026-10-12 2:17 ` Andrew Morton
0 siblings, 1 reply; 2+ messages in thread
From: Sasha Levin @ 2026-10-11 22:33 UTC (permalink / raw)
To: Shuah Khan, Alexey Dobriyan, Andrew Morton
Cc: Sasha Levin, linux-kernel, linux-fsdevel, linux-kselftest
g_vsyscall is only used by the x86_64 test, so other architectures get:
proc-pid-vm.c:224:21: warning: unused variable 'g_vsyscall' [-Wunused-variable]
Mark it __maybe_unused, like str_vsyscall next to it.
Fixes: 17415606f9d8b ("tools/testing/selftests/proc/proc-pid-vm.c: test with vsyscall in mind")
Assisted-by: LLM
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/proc/proc-pid-vm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/proc/proc-pid-vm.c b/tools/testing/selftests/proc/proc-pid-vm.c
index 4e6a3e53f9757..c5a66f481ab4d 100644
--- a/tools/testing/selftests/proc/proc-pid-vm.c
+++ b/tools/testing/selftests/proc/proc-pid-vm.c
@@ -221,7 +221,7 @@ static int make_exe(const uint8_t *payload, size_t len)
* 1: vsyscall VMA is --xp vsyscall=xonly
* 2: vsyscall VMA is r-xp vsyscall=emulate
*/
-static volatile int g_vsyscall;
+static volatile int g_vsyscall __maybe_unused;
static const char *str_vsyscall __maybe_unused;
static const char str_vsyscall_0[] __maybe_unused = "";
--
2.53.0
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] selftests/proc: proc-pid-vm: fix unused variable warning on non-x86
2026-10-11 22:33 [PATCH] selftests/proc: proc-pid-vm: fix unused variable warning on non-x86 Sasha Levin
@ 2026-10-12 2:17 ` Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2026-10-12 2:17 UTC (permalink / raw)
To: Sasha Levin
Cc: Shuah Khan, Alexey Dobriyan, linux-kernel, linux-fsdevel,
linux-kselftest
On Sun, 11 Oct 2026 18:33:39 -0400 Sasha Levin <sashal@kernel.org> wrote:
> g_vsyscall is only used by the x86_64 test, so other architectures get:
>
> proc-pid-vm.c:224:21: warning: unused variable 'g_vsyscall' [-Wunused-variable]
>
> Mark it __maybe_unused, like str_vsyscall next to it.
>
> ...
>
> --- a/tools/testing/selftests/proc/proc-pid-vm.c
> +++ b/tools/testing/selftests/proc/proc-pid-vm.c
> @@ -221,7 +221,7 @@ static int make_exe(const uint8_t *payload, size_t len)
> * 1: vsyscall VMA is --xp vsyscall=xonly
> * 2: vsyscall VMA is r-xp vsyscall=emulate
> */
> -static volatile int g_vsyscall;
> +static volatile int g_vsyscall __maybe_unused;
> static const char *str_vsyscall __maybe_unused;
>
> static const char str_vsyscall_0[] __maybe_unused = "";
Can't all the x86-specific stuff be moved after the #ifdef __x86_64__
which is a few lines later?
^ permalink raw reply [flat|nested] 2+ messages in thread
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2026-10-11 22:33 [PATCH] selftests/proc: proc-pid-vm: fix unused variable warning on non-x86 Sasha Levin
2026-10-12 2:17 ` Andrew Morton
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