reproduce (this is a W=1 build):
        git remote add drm-i915 https://gitlab.freedesktop.org/drm/i915/kernel.git
        git fetch drm-i915 for-linux-next
        git checkout drm-i915/for-linux-next
        b4 shazam https://lore.kernel.org/r/20251218163408.97508-20-dev@lankhorst.se

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/i915/ fs/ kernel/