reproduce (this is a W=1 build):
        # https://github.com/isilence/linux/commit/6c90859263a88df0e3947a4d138087a63ef878f8
        git remote add isilence https://github.com/isilence/linux
        git fetch --no-tags isilence zcrx/v8-dirty
        git checkout 6c90859263a88df0e3947a4d138087a63ef878f8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/