Re: [PATCH v2 01/28] coresight: Change device mode to atomic type

[Yeoreum Yun]

Hi Leo,

>  {
> -	return local_cmpxchg(&csdev->mode, CS_MODE_DISABLED, new_mode) ==
> -	       CS_MODE_DISABLED;
> +	int curr = CS_MODE_DISABLED;
> +
> +	return atomic_try_cmpxchg_acquire(&csdev->mode, &curr, new_mode);
>  }

Just question. why is acquire symentic enough in here?
before this change, local_cmpxchg seems to use full_fenced.

--
Sincerely,
Yeoreum Yun