Re: [PATCH v2] Revert "drm/radeon: Prefer dev_* variant over printk"

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On 2023-07-31 22:54, Srinivasan Shanmugam wrote:
> Usage of container_of is wrong here.
> struct acpi_device *adev = container_of(handle, struct acpi_device, handle)
> 
> This reverts commit 35ef33db90303589c76658207347539cf33f5ae3.
> 
> References: https://gitlab.freedesktop.org/drm/amd/-/issues/2744
> Cc: Guchun Chen <guchun.chen@xxxxxxx>
> Cc: Christian König <christian.koenig@xxxxxxx>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Cc: Bert Karwatzki <spasswolf@xxxxxx>
> Cc: "Pan, Xinhui" <Xinhui.Pan@xxxxxxx>
> Cc: Luben Tuikov <luben.tuikov@xxxxxxx>
> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@xxxxxxx>
> Reviewed-by: Guchun Chen <guchun.chen@xxxxxxx>

Reviewed-by: Luben Tuikov <luben.tuikov@xxxxxxx>

Regards,
Luben

> ---
> v2:
>  - Added missing commit id. 
> 
> 
>  drivers/gpu/drm/radeon/radeon_atpx_handler.c | 12 ++++--------
>  1 file changed, 4 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
> index fb4d931fdf18..595354e3ce0b 100644
> --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
> +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
> @@ -94,8 +94,6 @@ static union acpi_object *radeon_atpx_call(acpi_handle handle, int function,
>  	union acpi_object atpx_arg_elements[2];
>  	struct acpi_object_list atpx_arg;
>  	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
> -	struct acpi_device *adev = container_of(handle, struct acpi_device, handle);
> -	struct device *dev = &adev->dev;
>  
>  	atpx_arg.count = 2;
>  	atpx_arg.pointer = &atpx_arg_elements[0];
> @@ -117,8 +115,8 @@ static union acpi_object *radeon_atpx_call(acpi_handle handle, int function,
>  
>  	/* Fail only if calling the method fails and ATPX is supported */
>  	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
> -		dev_err(dev, "failed to evaluate ATPX got %s\n",
> -			acpi_format_exception(status));
> +		pr_err("failed to evaluate ATPX got %s\n",
> +		       acpi_format_exception(status));
>  		kfree(buffer.pointer);
>  		return NULL;
>  	}
> @@ -159,8 +157,6 @@ static void radeon_atpx_parse_functions(struct radeon_atpx_functions *f, u32 mas
>  static int radeon_atpx_validate(struct radeon_atpx *atpx)
>  {
>  	u32 valid_bits = 0;
> -	struct acpi_device *adev = container_of(atpx->handle, struct acpi_device, handle);
> -	struct device *dev = &adev->dev;
>  
>  	if (atpx->functions.px_params) {
>  		union acpi_object *info;
> @@ -175,7 +171,7 @@ static int radeon_atpx_validate(struct radeon_atpx *atpx)
>  
>  		size = *(u16 *) info->buffer.pointer;
>  		if (size < 10) {
> -			dev_err(dev, "ATPX buffer is too small: %zu\n", size);
> +			pr_err("ATPX buffer is too small: %zu\n", size);
>  			kfree(info);
>  			return -EINVAL;
>  		}
> @@ -206,7 +202,7 @@ static int radeon_atpx_validate(struct radeon_atpx *atpx)
>  
>  	atpx->is_hybrid = false;
>  	if (valid_bits & ATPX_MS_HYBRID_GFX_SUPPORTED) {
> -		dev_info(dev, "ATPX Hybrid Graphics\n");
> +		pr_info("ATPX Hybrid Graphics\n");
>  		/*
>  		 * Disable legacy PM methods only when pcie port PM is usable,
>  		 * otherwise the device might fail to power off or power on.

-- 
Regards,
Luben




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