Re: [PATCH v7 1/5] mm: page_alloc: remain memblock_next_valid_pfn() on arm and arm64

[Matthew Wilcox]

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.