linux-kernel - Re: [PATCH 1/2] amdgpu: display: use modern ktime accessors

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Date:   Mon, 18 Jun 2018 12:13:03 -0400
From:   Harry Wentland <harry.wentland@....com>
To:     Arnd Bergmann <arnd@...db.de>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>
Cc:     y2038@...ts.linaro.org, David Airlie <airlied@...ux.ie>,
        Tony Cheng <tony.cheng@....com>,
        Dave Airlie <airlied@...hat.com>, Rex Zhu <Rex.Zhu@....com>,
        Dmytro Laktyushkin <Dmytro.Laktyushkin@....com>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] amdgpu: display: use modern ktime accessors

On 2018-06-18 11:35 AM, Arnd Bergmann wrote:
> getrawmonotonic64() is deprecated because of the nonstandard naming.
> 
> The replacement functions ktime_get_raw_ns() also simplifies the callers.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Reviewed-by: Harry Wentland <harry.wentland@....com>

Harry

> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c | 8 --------
>  drivers/gpu/drm/amd/display/dc/dm_services.h               | 5 ++++-
>  2 files changed, 4 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
> index 5a3346124a01..e861929dd981 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
> @@ -35,14 +35,6 @@
>  #include "amdgpu_dm_irq.h"
>  #include "amdgpu_pm.h"
>  
> -unsigned long long dm_get_timestamp(struct dc_context *ctx)
> -{
> -	struct timespec64 time;
> -
> -	getrawmonotonic64(&time);
> -	return timespec64_to_ns(&time);
> -}
> -
>  unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx,
>  		unsigned long long current_time_stamp,
>  		unsigned long long last_time_stamp)
> diff --git a/drivers/gpu/drm/amd/display/dc/dm_services.h b/drivers/gpu/drm/amd/display/dc/dm_services.h
> index 4ff9b2bba178..eb5ab3978e84 100644
> --- a/drivers/gpu/drm/amd/display/dc/dm_services.h
> +++ b/drivers/gpu/drm/amd/display/dc/dm_services.h
> @@ -339,7 +339,10 @@ bool dm_dmcu_set_pipe(struct dc_context *ctx, unsigned int controller_id);
>  #define dm_log_to_buffer(buffer, size, fmt, args)\
>  	vsnprintf(buffer, size, fmt, args)
>  
> -unsigned long long dm_get_timestamp(struct dc_context *ctx);
> +static inline unsigned long long dm_get_timestamp(struct dc_context *ctx)
> +{
> +	return ktime_get_raw_ns();
> +}
>  
>  unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx,
>  		unsigned long long current_time_stamp,
>