Re: [PATCH v2 1/4] mm: don't special case !MMU for is_zero_pfn() and my_zero_pfn()

[David Hildenbrand (Arm)]

On 2/9/26 15:40, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
> 
> nommu architectures have empty_zero_page and define ZERO_PAGE() and
> although they don't really use it to populate page tables, there is no
> reason to hardwire !MMU implementation of is_zero_pfn() and my_zero_pfn()
> to 0.
> 
> Drop #ifdef CONFIG_MMU around implementations of is_zero_pfn() and
> my_zero_pfn() and remove !MMU version.
> 
> While on it, make zero_pfn __ro_after_init.
> 
> Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>

Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>

-- 
Cheers,

David