[PATCH 2/4] ACPI: Make acpi_dev_get_resources() method agnostic

[Rafael J. Wysocki]

On Thursday, July 20, 2017 03:45:14 PM Lorenzo Pieralisi wrote:
> The function acpi_dev_get_resources() is completely generic and
> can be used to parse resource objects that are not necessarily
> coming from the _CRS method but also from other objects eg _DMA
> that have the same _CRS resource format.
> 
> Create an acpi_dev_get_resources() helper, internal to the ACPI
> resources parsing compilation unit, acpi_dev_get_resources_method(),
> that takes a char* parameter to detect which ACPI method should be
> called to retrieve the resources list and make acpi_dev_get_resources()
> call it with a method name _CRS leaving the API behaviour unchanged.
> 
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
> Cc: "Rafael J. Wysocki" <rjw at rjwysocki.net>
> ---
>  drivers/acpi/resource.c | 54 +++++++++++++++++++++++++++++--------------------
>  1 file changed, 32 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
> index cd4c427..2b20a09 100644
> --- a/drivers/acpi/resource.c
> +++ b/drivers/acpi/resource.c
> @@ -573,6 +573,36 @@ static acpi_status acpi_dev_process_resource(struct acpi_resource *ares,
>  	return AE_OK;
>  }
>  
> +static
> +int acpi_dev_get_resources_method(struct acpi_device *adev,

Do not break lines like this, please.

It should be

static int acpi_dev_get...

Also I would call it differently, maybe simply __acpi_dev_get_resources()?

> +				  struct list_head *list,
> +				  int (*preproc)(struct acpi_resource *, void *),
> +				  void *preproc_data, char *method)

const char *method ?

Thanks,
Rafael