> +#if defined(CONFIG_DEBUG_SPINLOCK) && defined(CONFIG_SMP)
> +#define MUST_HOLD(lock) BUG_ON(!spin_is_locked(lock))
> +#define MUST_NOT_HOLD(lock) BUG_ON(spin_is_locked(lock))
> +#define MUST_HOLD_RW(lock) BUG_ON(!rwlock_is_locked(lock))
> +#else
> +#define MUST_HOLD(lock) do { } while(0)
> +#define MUST_NOT_HOLD(lock) do { } while(0)
> +#define MUST_HOLD_RW(lock) do { } while(0)
> +#endif /* CONFIG_DEBUG_SPINLOCK && CONFIG_SMP */
Random gripe: don't all those do { } whiles look silly? We need
#define NADA do { } while (0)
or similar.
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