reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/commit/?id=d066e7c8d9409e37ba4e162dbbc294f3397dc764 git remote add tglx-devel https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git git fetch --no-tags tglx-devel timers/cleanup git checkout d066e7c8d9409e37ba4e162dbbc294f3397dc764 # save the config file make W=1 ARCH=x86_64 olddefconfig make W=1 headers_install make W=1 -C tools/thermal/lib make W=1 -C tools/lib/api make W=1 tools/all