On Mon, Jan 31, 2022 at 01:48:58PM +0100, Arnd Bergmann wrote: > I thought that is what the patch does, there is already the normal 64-bit > defconfig, and the new makefile target makes this shared with 32-bit > to prevent them from diverging again. I ment using a common fragment and the deriving both 32-bit and 64-bit configs from it. The 64-bit specific fragment will be empty for now, but we will sooner or later have an option that can only go into the 64-bit defconfig.