reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7dd34d7b7dcf9309fc6224caf4dd5b35bedddcb7
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 7dd34d7b7dcf9309fc6224caf4dd5b35bedddcb7
        # 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 crypto/ drivers/char/mwave/ drivers/clk/ drivers/crypto/ccree/ drivers/dma-buf/ drivers/dma/dw-edma/ drivers/gpu/drm/amd/display/amdgpu_dm/ drivers/gpu/drm/i915/ drivers/infiniband/core/ drivers/infiniband/hw/hns/ drivers/infiniband/sw/siw/ drivers/mtd/ drivers/net/ethernet/freescale/enetc/ drivers/net/wireless/ath/ath9k/ drivers/net/wireless/realtek/rtlwifi/rtl8192de/ drivers/net/wireless/realtek/rtlwifi/rtl8192se/ drivers/net/xen-netback/ drivers/ptp/ drivers/scsi/lpfc/ drivers/scsi/megaraid/ drivers/spi/ drivers/tty/serial/8250/ drivers/usb/host/ drivers/virtio/ drivers/xen/ fs/ceph/ kernel/bpf/ kernel/irq/ kernel/printk/ kernel/trace/ net/rxrpc/ net/wireless/