reproduce (this is a W=1 build):
        git checkout 3fa5e5702a82d259897bd7e209469bc06368bf31
        b4 shazam https://lore.kernel.org/r/20260309-parse_iommu_cells-v10-2-c62fcaa5a1d8@oss.qualcomm.com

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash