Re: [RFC Patch v1 3/6] acpi_pad: use acpi_evaluate_pad() to replace open-coded version

[Rafael J. Wysocki]

On Monday, February 17, 2014 01:02:50 PM Jiang Liu wrote:
> Use public function acpi_evaluate_pad() to replace open-coded

I suppose you mean acpi_evaluate_ost()?  And in the other patches
in this series too?

> version of evaluating ACPI _OST method.
> 
> Signed-off-by: Jiang Liu <jiang....@linux.intel.com>
> ---
>  drivers/acpi/acpi_pad.c |   24 +++++-------------------
>  1 file changed, 5 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
> index 1e3ce76..86b4e11 100644
> --- a/drivers/acpi/acpi_pad.c
> +++ b/drivers/acpi/acpi_pad.c
> @@ -408,28 +408,14 @@ static int acpi_pad_pur(acpi_handle handle)
>       return num;
>  }
>  
> -/* Notify firmware how many CPUs are idle */
> -static void acpi_pad_ost(acpi_handle handle, int stat,
> -     uint32_t idle_cpus)
> -{
> -     union acpi_object params[3] = {
> -             {.type = ACPI_TYPE_INTEGER,},
> -             {.type = ACPI_TYPE_INTEGER,},
> -             {.type = ACPI_TYPE_BUFFER,},
> -     };
> -     struct acpi_object_list arg_list = {3, params};
> -
> -     params[0].integer.value = ACPI_PROCESSOR_AGGREGATOR_NOTIFY;
> -     params[1].integer.value =  stat;
> -     params[2].buffer.length = 4;
> -     params[2].buffer.pointer = (void *)&idle_cpus;
> -     acpi_evaluate_object(handle, "_OST", &arg_list, NULL);
> -}
> -
>  static void acpi_pad_handle_notify(acpi_handle handle)
>  {
>       int num_cpus;
>       uint32_t idle_cpus;
> +     struct acpi_buffer param = {
> +             .length = 4,
> +             .pointer = (void *)&idle_cpus,
> +     };
>  
>       mutex_lock(&isolated_cpus_lock);
>       num_cpus = acpi_pad_pur(handle);
> @@ -439,7 +425,7 @@ static void acpi_pad_handle_notify(acpi_handle handle)
>       }
>       acpi_pad_idle_cpus(num_cpus);
>       idle_cpus = acpi_pad_idle_cpus_num();
> -     acpi_pad_ost(handle, 0, idle_cpus);
> +     acpi_evaluate_ost(handle, ACPI_PROCESSOR_AGGREGATOR_NOTIFY, 0, &param);
>       mutex_unlock(&isolated_cpus_lock);
>  }
>  
> 

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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