Re: [PATCH 2/5] drm/dsc: Fix bogus cpu_to_be16() usage

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On Wed, Jul 10, 2019 at 03:51:40PM +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> __be16 = cpu_to_be16(__be16) is nonsense. Do it right.
> 
> ../drivers/gpu/drm/drm_dsc.c:218:53: warning: incorrect type in assignment (different base types)
> ../drivers/gpu/drm/drm_dsc.c:218:53:    expected restricted __be16
> ../drivers/gpu/drm/drm_dsc.c:218:53:    got int
> ../drivers/gpu/drm/drm_dsc.c:225:25: warning: cast from restricted __be16
> ../drivers/gpu/drm/drm_dsc.c:225:25: warning: incorrect type in argument 1 (different base types)
> ../drivers/gpu/drm/drm_dsc.c:225:25:    expected unsigned short [usertype] val
> ../drivers/gpu/drm/drm_dsc.c:225:25:    got restricted __be16
> ../drivers/gpu/drm/drm_dsc.c:225:25: warning: cast from restricted __be16
> ../drivers/gpu/drm/drm_dsc.c:225:25: warning: cast from restricted __be16
> 
> Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx>
> Cc: David Francis <David.Francis@xxxxxxx>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Reviewed-by: Sean Paul <sean@xxxxxxxxxx>

> ---
>  drivers/gpu/drm/drm_dsc.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dsc.c b/drivers/gpu/drm/drm_dsc.c
> index 77f4e5ae4197..f2fc47f123d2 100644
> --- a/drivers/gpu/drm/drm_dsc.c
> +++ b/drivers/gpu/drm/drm_dsc.c
> @@ -216,13 +216,11 @@ void drm_dsc_pps_payload_pack(struct drm_dsc_picture_parameter_set *pps_payload,
>  	 */
>  	for (i = 0; i < DSC_NUM_BUF_RANGES; i++) {
>  		pps_payload->rc_range_parameters[i] =
> -			((dsc_cfg->rc_range_params[i].range_min_qp <<
> -			  DSC_PPS_RC_RANGE_MINQP_SHIFT) |
> -			 (dsc_cfg->rc_range_params[i].range_max_qp <<
> -			  DSC_PPS_RC_RANGE_MAXQP_SHIFT) |
> -			 (dsc_cfg->rc_range_params[i].range_bpg_offset));
> -		pps_payload->rc_range_parameters[i] =
> -			cpu_to_be16(pps_payload->rc_range_parameters[i]);
> +			cpu_to_be16((dsc_cfg->rc_range_params[i].range_min_qp <<
> +				     DSC_PPS_RC_RANGE_MINQP_SHIFT) |
> +				    (dsc_cfg->rc_range_params[i].range_max_qp <<
> +				     DSC_PPS_RC_RANGE_MAXQP_SHIFT) |
> +				    (dsc_cfg->rc_range_params[i].range_bpg_offset));
>  	}
>  
>  	/* PPS 88 */
> -- 
> 2.21.0
> 
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-- 
Sean Paul, Software Engineer, Google / Chromium OS
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