On Tue, 29 Oct 2024 14:42:10 -0500, Gax-c wrote:
> There may be a potential integer overflow issue in
> _dpu_core_perf_calc_clk(). crtc_clk is defined as u64, while
> mode->vtotal, mode->hdisplay, and drm_mode_vrefresh(mode) are defined as
> a smaller data type. The result of the calculation will be limited to
> "int" in this case without correct casting. In screen with high
> resolution and high refresh rate, integer overflow may happen.
> So, we recommend adding an extra cast to prevent potential
> integer overflow.
>
> [...]
Applied, thanks!
[1/1] drm/msm/dpu: cast crtc_clk calculation to u64 in _dpu_core_perf_calc_clk()
https://gitlab.freedesktop.org/lumag/msm/-/commit/20c7b42d9dbd
Best regards,
--
Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
