✗ Fi.CI.BUILD: failure for Update VRR guardband for HRR panel (rev2)

[Patchwork]

== Series Details ==

Series: Update VRR guardband for HRR panel (rev2)
URL   : https://patchwork.freedesktop.org/series/138823/
State : failure

== Summary ==

Error: make failed
  CALL    scripts/checksyscalls.sh
  DESCEND objtool
  INSTALL libsubcmd_headers
  CC [M]  drivers/gpu/drm/i915/display/intel_vrr.o
drivers/gpu/drm/i915/display/intel_vrr.c: In function ‘intel_vrr_compute_config_late’:
drivers/gpu/drm/i915/display/intel_vrr.c:256:3: error: implicit declaration of function ‘intel_usecs_to_scanlines’ [-Werror=implicit-function-declaration]
  256 |   intel_usecs_to_scanlines(&crtc_state->hw.adjusted_mode,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [scripts/Makefile.build:244: drivers/gpu/drm/i915/display/intel_vrr.o] Error 1
make[5]: *** [scripts/Makefile.build:485: drivers/gpu/drm/i915] Error 2
make[4]: *** [scripts/Makefile.build:485: drivers/gpu/drm] Error 2
make[3]: *** [scripts/Makefile.build:485: drivers/gpu] Error 2
make[2]: *** [scripts/Makefile.build:485: drivers] Error 2
make[1]: *** [/home/kbuild2/kernel/Makefile:1926: .] Error 2
make: *** [Makefile:224: __sub-make] Error 2
Build failed, no error log produced