On 2017-10-02 11:14 PM, Dave Airlie wrote:
> From: Dave Airlie <airlied at redhat.com>
>
> This should produce the same result.
>
> Signed-off-by: Dave Airlie <airlied at redhat.com>
Reviewed-by: Harry Wentland <harry.wentland at amd.com>
Harry
> ---
> drivers/gpu/drm/amd/display/dc/basics/conversion.c | 10 ----------
> drivers/gpu/drm/amd/display/dc/basics/conversion.h | 5 ++++-
> 2 files changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.c b/drivers/gpu/drm/amd/display/dc/basics/conversion.c
> index a2e22ae..23c9a0e 100644
> --- a/drivers/gpu/drm/amd/display/dc/basics/conversion.c
> +++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.c
> @@ -102,13 +102,3 @@ void convert_float_matrix(
> matrix[i] = (uint16_t)reg_value;
> }
> }
> -
> -unsigned int log_2(unsigned int num)
> -{
> - unsigned int result = 0;
> -
> - while ((num >>= 1) != 0)
> - result++;
> -
> - return result;
> -}
> diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.h b/drivers/gpu/drm/amd/display/dc/basics/conversion.h
> index 189325f..ade785c 100644
> --- a/drivers/gpu/drm/amd/display/dc/basics/conversion.h
> +++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.h
> @@ -38,6 +38,9 @@ void convert_float_matrix(
> struct fixed31_32 *flt,
> uint32_t buffer_size);
>
> -unsigned int log_2(unsigned int num);
> +static inline unsigned int log_2(unsigned int num)
> +{
> + return ilog2(num);
> +}
>
> #endif
>
