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kunit: test-bug.h: include stddef.h for NULL

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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>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Miguel Ojeda 2023-07-18 07:27:46 +02:00 committed by Shuah Khan
parent 1b0975ee3b
commit df3cb7ac0e
1 changed files with 2 additions and 0 deletions
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2
include/kunit/test-bug.h
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@ -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 */