Re: [PATCH v2 1/7] kunit: test-bug.h: include `stddef.h` for `NULL`

[David Gow <davidgow@google.com>]

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On Tue, 18 Jul 2023 at 13:28, Miguel Ojeda <ojeda@kernel.org> wrote:
>
> The header uses `NULL` in both `CONFIG_KUNIT=y` and `=n` cases,
> but does not include it explicitly.
>
> When `CONFIG_KUNIT=y`, the header is already getting included via
> the other headers, so it is not a problem for users.
>
> However, when `CONFIG_KUNIT=n`, it is not, and thus a user could hit
> a build error when including `kunit/test-bug.h`, like we are doing
> later in this series [1].
>
> Thus include `linux/stddef.h`, and do so outside the `#if`, since it
> is used in both cases.
>
> Reported-by: Boqun Feng <boqun.feng@gmail.com>
> Closes: https://lore.kernel.org/rust-for-linux/ZJ8cNUW3oR2p+gL1@boqun-archlinux/ [1]
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
> ---

Reviewed-by: David Gow <davidgow@google.com>

Thanks!
-- David

>  include/kunit/test-bug.h | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/include/kunit/test-bug.h b/include/kunit/test-bug.h
> index 30ca541b6ff2..47aa8f21ccce 100644
> --- a/include/kunit/test-bug.h
> +++ b/include/kunit/test-bug.h
> @@ -9,6 +9,8 @@
>  #ifndef _KUNIT_TEST_BUG_H
>  #define _KUNIT_TEST_BUG_H
>
> +#include <linux/stddef.h> /* for NULL */
> +
>  #if IS_ENABLED(CONFIG_KUNIT)
>
>  #include <linux/jump_label.h> /* For static branch */
> --
> 2.41.0
>
> --
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