Re: [PATCH] drm/amd/display/dc/core/dc_resource: use swap macro in rect_swap_helper

From: Harry Wentland
Date: Fri Nov 17 2017 - 10:46:14 EST


On 2017-11-10 05:38 PM, Gustavo A. R. Silva wrote:
> Make use of the swap macro instead of _manually_ swapping values
> and remove unnecessary variable temp.
>
> This makes the code easier to read and maintain.
>
> This code was detected with the help of Coccinelle.
>
> Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>

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

Harry

> ---
> drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 11 ++---------
> 1 file changed, 2 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
> index d1cdf9f..ee216f2 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
> @@ -426,15 +426,8 @@ static enum pixel_format convert_pixel_format_to_dalsurface(
>
> static void rect_swap_helper(struct rect *rect)
> {
> - uint32_t temp = 0;
> -
> - temp = rect->height;
> - rect->height = rect->width;
> - rect->width = temp;
> -
> - temp = rect->x;
> - rect->x = rect->y;
> - rect->y = temp;
> + swap(rect->height, rect->width);
> + swap(rect->x, rect->y);
> }
>
> static void calculate_viewport(struct pipe_ctx *pipe_ctx)
>