[PATCH V3 2/2] arm64/mm: Reorganize pfn_valid()

[Catalin Marinas]

On Fri, Mar 05, 2021 at 10:54:58AM +0530, Anshuman Khandual wrote:
> There are multiple instances of pfn_to_section_nr() and __pfn_to_section()
> when CONFIG_SPARSEMEM is enabled. This can be optimized if memory section
> is fetched earlier. This replaces the open coded PFN and ADDR conversion
> with PFN_PHYS() and PHYS_PFN() helpers. While there, also add a comment.
> This does not cause any functional change.
> 
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> Cc: Will Deacon <will at kernel.org>
> Cc: Ard Biesheuvel <ardb at kernel.org>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-kernel at vger.kernel.org
> Reviewed-by: David Hildenbrand <david at redhat.com>
> Signed-off-by: Anshuman Khandual <anshuman.khandual at arm.com>

Acked-by: Catalin Marinas <catalin.marinas at arm.com>