drm/amd/display: Use int for calculating vline start (403dc5e8) · Commits · 戴 / test

We are not sure these calculations will never need negative numbers. Use signed integers and warn and cap at 0 if this ever happens. Signed-off-by:

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -96,10 +96,10 @@ static void optc1_disable_stereo(struct timing_generator *optc)
		static uint32_t get_start_vline(struct timing_generator optc, const struct dc_crtc_timing dc_crtc_timing)
		{
		struct dc_crtc_timing patched_crtc_timing;
		uint32_t vesa_sync_start;
		uint32_t asic_blank_end;
		uint32_t interlace_factor;
		uint32_t vertical_line_start;
		int vesa_sync_start;
		int asic_blank_end;
		int interlace_factor;
		int vertical_line_start;

		patched_crtc_timing = *dc_crtc_timing;
		optc1_apply_front_porch_workaround(optc, &patched_crtc_timing);