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This new function allows Rust code to pass the lock class it generates to the C implementation. Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Will Deacon Cc: Waiman Long Reviewed-by: Martin Rodriguez Reboredo Signed-off-by: Wedson Almeida Filho Reviewed-by: Boqun Feng --- v1 -> v2: No changes v2 -> v3: No changes v3 -> v4: No changes include/linux/spinlock.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index be48f1cb1878..cdc92d095133 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -327,12 +327,17 @@ static __always_inline raw_spinlock_t *spinlock_check(spinlock_t *lock) #ifdef CONFIG_DEBUG_SPINLOCK +static inline void spin_lock_init_with_key(spinlock_t *lock, const char *name, + struct lock_class_key *key) +{ + __raw_spin_lock_init(spinlock_check(lock), name, key, LD_WAIT_CONFIG); +} + # define spin_lock_init(lock) \ do { \ static struct lock_class_key __key; \ \ - __raw_spin_lock_init(spinlock_check(lock), \ - #lock, &__key, LD_WAIT_CONFIG); \ + spin_lock_init_with_key(lock, #lock, &__key); \ } while (0) #else