[PATCH V4 02/26] mm/mmap: Define DECLARE_VM_GET_PAGE_PROT

[Christoph Hellwig]

On Fri, Jun 24, 2022 at 10:13:15AM +0530, Anshuman Khandual wrote:
> This just converts the generic vm_get_page_prot() implementation into a new
> macro i.e DECLARE_VM_GET_PAGE_PROT which later can be used across platforms
> when enabling them with ARCH_HAS_VM_GET_PAGE_PROT. This does not create any
> functional change.

mm.h is a huhe header included by almost everything in the kernel.
I'd rather have it in something only included in a few files.  If we
can't find anything suitable it might be worth to add a header just
for this even.