On Thu, Apr 05, 2018 at 01:04:34AM -0700, Jia He wrote: > create mode 100644 include/linux/arm96_common.h 'arm96_common'?! No. Just no. The right way to share common code is to create a header file (or use an existing one), either in asm-generic or linux, with a #ifdef CONFIG_foo block and then 'select foo' in the arm Kconfig files. That allows this common code to be shared, maybe with powerpc or x86 or ... in the future.