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

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Date:   Thu, 3 Feb 2022 11:40:09 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
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>,
        Maximilian Luz <luzmaximilian@...il.com>
Subject: Re: [PATCH] platform: surface: Replace acpi_bus_get_device()

Hi,

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>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans


> ---
>  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");
> 
> 
>