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=8c78f0dee4371ab3b0422edf08597525c6219512
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 8c78f0dee4371ab3b0422edf08597525c6219512
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=csky olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash arch/csky/kernel/ drivers/android/ drivers/dma/xilinx/ drivers/gpu/drm/ drivers/hwmon/ drivers/input/keyboard/ drivers/input/misc/ drivers/input/serio/ drivers/leds/ drivers/misc/ drivers/net/ethernet/broadcom/genet/ drivers/net/ethernet/chelsio/cxgb4/ drivers/net/ethernet/chelsio/cxgb4vf/ drivers/net/ethernet/emulex/benet/ drivers/net/ethernet/intel/i40e/ drivers/net/ethernet/neterion/ drivers/net/ethernet/sfc/ drivers/net/ethernet/stmicro/stmmac/ drivers/pci/controller/dwc/ drivers/power/supply/ drivers/scsi/ drivers/thermal/ drivers/tty/ drivers/usb/core/ drivers/usb/dwc2/ drivers/usb/gadget/function/ drivers/usb/gadget/udc/ fs/gfs2/ kernel/ net/8021q/