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Commit 3dc3099a authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Linus Torvalds
Browse files

[PATCH] lockdep: use BUILD_BUG_ON 



Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Acked-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 39913b31

kernel/lockdep.c

+1 −4
Original line number Diff line number Diff line
@@ -1114,8 +1114,6 @@ static int count_matching_names(struct lock_class *new_class) 
	return count + 1;

}



extern void __error_too_big_MAX_LOCKDEP_SUBCLASSES(void);



/*

 * Register a lock's class in the hash-table, if the class is not present

 * yet. Otherwise we look it up. We cache the result in the lock object
@@ -1153,8 +1151,7 @@ look_up_lock_class(struct lockdep_map *lock, unsigned int subclass) 
	 * (or spin_lock_init()) call - which acts as the key. For static

	 * locks we use the lock object itself as the key.

	 */

	if (sizeof(struct lock_class_key) > sizeof(struct lock_class))

		__error_too_big_MAX_LOCKDEP_SUBCLASSES();

	BUILD_BUG_ON(sizeof(struct lock_class_key) > sizeof(struct lock_class));



	key = lock->key->subkeys + subclass;