Re: i915 build error on drm-misc-next

[Rodrigo Vivi <rodrigo.vivi@intel.com>]

On Fri, Feb 23, 2024 at 08:50:06AM -0700, Jeffrey Hugo wrote:
> With the x86_64_defconfig I see the following when building drm-misc-next:
> 
>   CC      drivers/gpu/drm/i915/display/intel_crt.o
>   CC      drivers/gpu/drm/i915/display/intel_cx0_phy.o
>   CC      drivers/gpu/drm/i915/display/intel_ddi.o
>   CC      drivers/gpu/drm/i915/display/intel_ddi_buf_trans.o
>   CC      drivers/gpu/drm/i915/display/intel_display_device.o
>   CC      drivers/gpu/drm/i915/display/intel_display_trace.o
>   CC      drivers/gpu/drm/i915/display/intel_dkl_phy.o
>   CC      drivers/gpu/drm/i915/display/intel_dp.o
>   CC      drivers/gpu/drm/i915/display/intel_dp_aux.o
>   CC      drivers/gpu/drm/i915/display/intel_dp_aux_backlight.o
>   CC      drivers/gpu/drm/i915/display/intel_dp_hdcp.o
>   CC      drivers/gpu/drm/i915/display/intel_dp_link_training.o
>   CC      drivers/gpu/drm/i915/display/intel_dp_mst.o
>   CC      drivers/gpu/drm/i915/display/intel_dsi.o
>   CC      drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.o
>   CC      drivers/gpu/drm/i915/display/intel_dsi_vbt.o
>   CC      drivers/gpu/drm/i915/display/intel_dvo.o
>   CC      drivers/gpu/drm/i915/display/intel_gmbus.o
>   CC      drivers/gpu/drm/i915/display/intel_hdmi.o
>   CC      drivers/gpu/drm/i915/display/intel_lspcon.o
>   CC      drivers/gpu/drm/i915/display/intel_lvds.o
>   CC      drivers/gpu/drm/i915/display/intel_panel.o
>   CC      drivers/gpu/drm/i915/display/intel_pps.o
> drivers/gpu/drm/i915/display/intel_dp.c: In function
> ‘intel_write_dp_vsc_sdp’:
> drivers/gpu/drm/i915/display/intel_dp.c:4232:15: error: implicit declaration
> of function ‘intel_dp_vsc_sdp_pack’; did you mean ‘drm_dp_vsc_sdp_pack’?
> [-Werror=implicit-function-declaration]
>  4232 |         len = intel_dp_vsc_sdp_pack(vsc, &sdp, sizeof(sdp));
>       |               ^~~~~~~~~~~~~~~~~~~~~
>       |               drm_dp_vsc_sdp_pack
> 
> Is this a known issue?

o.O - what a mistery!

it looks that drm-misc-next has only part of the patch:
31a5b6ed88c7 ("drm/i915/display: Unify VSC SPD preparation")

without the patch itself...

I couldn't even trace back to understand how the declaration is
gone from the drm-misc-next...

> 
> -Jeff