On Mon, Sep 2, 2019 at 10:16 AM kbuild test robot <lkp@xxxxxxxxx> wrote: > > vim +5 include/linux/soc/mmp/cputype.h > > 49cbe78637eb05 arch/arm/mach-mmp/include/mach/cputype.h Eric Miao 2009-01-20 4 > 49cbe78637eb05 arch/arm/mach-mmp/include/mach/cputype.h Eric Miao 2009-01-20 @5 #include <asm/cputype.h> > 49cbe78637eb05 arch/arm/mach-mmp/include/mach/cputype.h Eric Miao 2009-01-20 6 > You can probably do something like #ifdef CONFIG_ARM #include <asm/cputype.h> #else static inline read_cpuid_id(void) { return 0; } #endif Then again, ideally drivers don't even have to know about this, but would distinguish between devices based on the compatible string for the particular device. Arnd