reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        git remote add amd-pstate https://git.kernel.org/pub/scm/linux/kernel/git/superm1/linux.git
        git fetch amd-pstate linux-next
        git checkout amd-pstate/linux-next
        b4 shazam https://lore.kernel.org/r/20250501215838.2501827-1-superm1@kernel.org
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/events/amd/ crypto/ drivers/acpi/nfit/ drivers/ata/ drivers/block/null_blk/ drivers/block/zram/ drivers/bus/mhi/host/ drivers/char/ipmi/ drivers/char/tpm/ drivers/clk/ drivers/dax/ drivers/edac/ drivers/firmware/cirrus/test/ drivers/gpu/drm/etnaviv/ drivers/gpu/drm/scheduler/ drivers/hid/ drivers/hsi/ drivers/hv/ drivers/hwtracing/intel_th/ drivers/iio/adc/ drivers/iio/common/st_sensors/ drivers/input/rmi4/ drivers/md/ drivers/media/common/siano/ drivers/media/dvb-frontends/ drivers/mmc/core/ drivers/mtd/ drivers/nvdimm/ drivers/power/sequencing/ drivers/scsi/ drivers/staging/gpib/common/ drivers/staging/most/i2c/ drivers/tee/ drivers/thermal/testing/ drivers/virt/acrn/ fs/adfs/ fs/befs/ fs/btrfs/ fs/ecryptfs/ fs/exfat/ fs/fat/ fs/freevxfs/ fs/hfs/ fs/hfsplus/ fs/jffs2/ fs/overlayfs/ fs/qnx6/ fs/squashfs/ kernel/power/ mm/kasan/