reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/9659bdd0486bab092f117797485c1d4ab3b8be34
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Bibo-Mao/ACPICA-actbl2-h-Add-bit-constants-of-the-Flags-field-in-the-IOVT-IOMMU-structure/20260922-201055
        git checkout 9659bdd0486bab092f117797485c1d4ab3b8be34

        # install loongarch cross compiling tool for clang build
        # apt-get install binutils-loongarch-linux-gnu
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash drivers/acpi/loongarch/