linux-kernel - Re: [PATCH] platform: surface: Replace acpi_bus_get

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Date:   Wed, 26 Jan 2022 21:03:27 +0100
From:   Maximilian Luz <luzmaximilian@...il.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Hans de Goede <hdegoede@...hat.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org,
        Mark Gross <markgross@...nel.org>
Subject: Re: [PATCH] platform: surface: Replace acpi_bus_get_device()

On 1/26/22 20:41, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Replace acpi_bus_get_device() that is going to be dropped with
> acpi_fetch_acpi_dev().
> 
> No intentional functional impact.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Looks good to me.

Reviewed-by: Maximilian Luz <luzmaximilian@...il.com>

> ---
>   drivers/platform/surface/surface3-wmi.c        |   12 ++++--------
>   drivers/platform/surface/surface_acpi_notify.c |    3 ++-
>   2 files changed, 6 insertions(+), 9 deletions(-)
> 
> Index: linux-pm/drivers/platform/surface/surface3-wmi.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/surface/surface3-wmi.c
> +++ linux-pm/drivers/platform/surface/surface3-wmi.c
> @@ -116,15 +116,11 @@ static acpi_status s3_wmi_attach_spi_dev
>   					    void *data,
>   					    void **return_value)
>   {
> -	struct acpi_device *adev, **ts_adev;
> +	struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
> +	struct acpi_device **ts_adev = data;
>   
> -	if (acpi_bus_get_device(handle, &adev))
> -		return AE_OK;
> -
> -	ts_adev = data;
> -
> -	if (strncmp(acpi_device_bid(adev), SPI_TS_OBJ_NAME,
> -	    strlen(SPI_TS_OBJ_NAME)))
> +	if (!adev || strncmp(acpi_device_bid(adev), SPI_TS_OBJ_NAME,
> +			     strlen(SPI_TS_OBJ_NAME)))
>   		return AE_OK;
>   
>   	if (*ts_adev) {
> Index: linux-pm/drivers/platform/surface/surface_acpi_notify.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/surface/surface_acpi_notify.c
> +++ linux-pm/drivers/platform/surface/surface_acpi_notify.c
> @@ -770,7 +770,8 @@ static acpi_status san_consumer_setup(ac
>   		return AE_OK;
>   
>   	/* Ignore ACPI devices that are not present. */
> -	if (acpi_bus_get_device(handle, &adev) != 0)
> +	adev = acpi_fetch_acpi_dev(handle);
> +	if (!adev)
>   		return AE_OK;
>   
>   	san_consumer_dbg(&pdev->dev, handle, "creating device link\n");
> 
> 
>