From: Christoph Müllner <christoph.muellner@vrull.eu>

GCC raises the following warning:
  warning: 'status' may be used uninitialized
The warning comes from the fact, that the signature of waitpid() is
unknown and therefore the initialization of GCC cannot be guessed.
Let's add the relevant header to address this warning.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
---
 tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
index 2c0d2b1126c1..1f9969bed235 100644
--- a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
+++ b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
@@ -1,4 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/wait.h>
+
 #define THIS_PROGRAM "./vstate_exec_nolibc"
 
 int main(int argc, char **argv)
-- 
2.41.0

On Fri, Nov 24, 2023 at 2:58 AM Christoph Muellner
<christoph.muellner@vrull.eu> wrote:
>
> From: Christoph Müllner <christoph.muellner@vrull.eu>
>
> GCC raises the following warning:
>   warning: 'status' may be used uninitialized
> The warning comes from the fact, that the signature of waitpid() is
> unknown and therefore the initialization of GCC cannot be guessed.
> Let's add the relevant header to address this warning.
>
> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Reviewed-by: Andy Chiu <andy.chiu@sifive.com>


> ---
>  tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
> index 2c0d2b1126c1..1f9969bed235 100644
> --- a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
> +++ b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
> @@ -1,4 +1,7 @@
>  // SPDX-License-Identifier: GPL-2.0-only
> +
> +#include <linux/wait.h>
> +
>  #define THIS_PROGRAM "./vstate_exec_nolibc"
>
>  int main(int argc, char **argv)
> --
> 2.41.0
>

On 23/11/2023 19:58, Christoph Muellner wrote:
> From: Christoph Müllner <christoph.muellner@vrull.eu>
>
> GCC raises the following warning:
>    warning: 'status' may be used uninitialized
> The warning comes from the fact, that the signature of waitpid() is
> unknown and therefore the initialization of GCC cannot be guessed.
> Let's add the relevant header to address this warning.
>
> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
> ---
>   tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
> index 2c0d2b1126c1..1f9969bed235 100644
> --- a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
> +++ b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
> @@ -1,4 +1,7 @@
>   // SPDX-License-Identifier: GPL-2.0-only
> +
> +#include <linux/wait.h>
> +
>   #define THIS_PROGRAM "./vstate_exec_nolibc"
>   
>   int main(int argc, char **argv)

You can add:

Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>

Thanks!

Alex