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lockdep: Move lockdep_assert_locked() under #ifdef CONFIG_PROVE_LOCKING

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When lockdep_assert_locked() is unused, it prevents kernel builds
with clang, `make W=1` and CONFIG_WERROR=y, CONFIG_LOCKDEP=y and
CONFIG_PROVE_LOCKING=n:

  kernel/locking/lockdep.c:160:20: error: unused function 'lockdep_assert_locked' [-Werror,-Wunused-function]

Fix this by moving it under the respective ifdeffery.

See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
inline functions for W=1 build").

[Boqun: add more config information of the error]

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20241202193445.769567-1-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2024-12-02 21:34:45 +02:00 committed by Boqun Feng
parent 8148fa2e02
commit 3430600925
1 changed files with 2 additions and 0 deletions
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2
kernel/locking/lockdep.c
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@ -157,10 +157,12 @@ static inline void lockdep_unlock(void)
__this_cpu_dec(lockdep_recursion); __this_cpu_dec(lockdep_recursion);
} }
#ifdef CONFIG_PROVE_LOCKING
static inline bool lockdep_assert_locked(void) static inline bool lockdep_assert_locked(void)
{ {
return DEBUG_LOCKS_WARN_ON(__owner != current); return DEBUG_LOCKS_WARN_ON(__owner != current);
} }
#endif
static struct task_struct *lockdep_selftest_task_struct; static struct task_struct *lockdep_selftest_task_struct;