Re: [PATCH] arm64: mm: fix __page_to_voff definition

From: Ard Biesheuvel
Date: Fri Oct 21 2016 - 06:19:06 EST


On 21 October 2016 at 09:58, Neeraj Upadhyay <neeraju@xxxxxxxxxxxxxx> wrote:
> Fix parameter name for __page_to_voff, to match its definition.
> At present, we don't see any issue, as page_to_virt's caller
> declares 'page'.
>
> Fixes: 9f2875912dac ("arm64: mm: restrict virt_to_page() to the linear mapping")
> Signed-off-by: Neeraj Upadhyay <neeraju@xxxxxxxxxxxxxx>
> ---
> arch/arm64/include/asm/memory.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
> index ba62df8..b71086d 100644
> --- a/arch/arm64/include/asm/memory.h
> +++ b/arch/arm64/include/asm/memory.h
> @@ -217,7 +217,7 @@ static inline void *phys_to_virt(phys_addr_t x)
> #define _virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
> #else
> #define __virt_to_pgoff(kaddr) (((u64)(kaddr) & ~PAGE_OFFSET) / PAGE_SIZE * sizeof(struct page))
> -#define __page_to_voff(kaddr) (((u64)(page) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
> +#define __page_to_voff(page) (((u64)(page) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
>
> #define page_to_virt(page) ((void *)((__page_to_voff(page)) | PAGE_OFFSET))
> #define virt_to_page(vaddr) ((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START))

Acked-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>