Re: [PATCH 01/40] drm/amd/display/dc/dce/dce_aux: Mark 'dce_aux_transfer_raw' as __maybe_unused

From: Alex Deucher
Date: Tue Jan 12 2021 - 16:58:21 EST


On Mon, Jan 11, 2021 at 2:19 PM Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
> drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c: In function ‘dce_aux_transfer_raw’:
> drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c:579:7: warning: variable ‘bytes_replied’ set but not used [-Wunused-but-set-variable]
>
> Cc: Harry Wentland <harry.wentland@xxxxxxx>
> Cc: Leo Li <sunpeng.li@xxxxxxx>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Cc: "Christian König" <christian.koenig@xxxxxxx>
> Cc: David Airlie <airlied@xxxxxxxx>
> Cc: Daniel Vetter <daniel@xxxxxxxx>
> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>

Applied. Thanks!

Alex

> ---
> drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
> index 3204292a5aeae..d51b5fe91287d 100644
> --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
> +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
> @@ -576,7 +576,7 @@ int dce_aux_transfer_raw(struct ddc_service *ddc,
> *operation_result = get_channel_status(aux_engine, &returned_bytes);
>
> if (*operation_result == AUX_CHANNEL_OPERATION_SUCCEEDED) {
> - int bytes_replied = 0;
> + int __maybe_unused bytes_replied = 0;
> bytes_replied = read_channel_reply(aux_engine, payload->length,
> payload->data, payload->reply,
> &status);
> --
> 2.25.1
>
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