reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/2ecba7a3b238002d00204460340708e61b6bee82
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Umang-Jain/usb-early-xhci-dbc-Track-early_ioremap-size-separately/20260604-225542
        git checkout 2ecba7a3b238002d00204460340708e61b6bee82

        # clang-22 might not be officially released. Try a lower version if installation fails.
        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=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/usb/early/