On Wed, Dec 08, 2021 at 07:46:19AM +0000, cgel.zte@xxxxxxxxx wrote:
> From: luo penghao <luo.penghao@xxxxxxxxxx>
>
> This value will be overwritten by the following if statement, even
> if the if is not executed, the value will not be used
>
> The clang_analyzer complains as follows:
>
> Value stored to 'port_mask' is never read
>
> Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
> Signed-off-by: luo penghao <luo.penghao@xxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_ddi.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index bd18432..3aad0c3 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -2011,7 +2011,6 @@ void intel_ddi_sanitize_encoder_pll_mapping(struct intel_encoder *encoder)
> return;
> }
>
> - port_mask = BIT(encoder->port);
> ddi_clk_needed = encoder->base.crtc;
>
> if (encoder->type == INTEL_OUTPUT_DSI) {
'port_mask' declaration could now be moved into this block.
> --
> 2.15.2
>
--
Ville Syrjälä
Intel
