On 21.9.2017 00:29, Thomas Meyer wrote:
> Use vma_pages function on vma object instead of explicit computation.
> Found by coccinelle spatch "api/vma_pages.cocci"
> 
> Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
> ---
> 
> diff -u -p a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
> --- a/arch/microblaze/kernel/dma.c
> +++ b/arch/microblaze/kernel/dma.c
> @@ -165,7 +165,7 @@ int dma_direct_mmap_coherent(struct devi
>  			     unsigned long attrs)
>  {
>  #ifdef CONFIG_MMU
> -	unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
> +	unsigned long user_count = vma_pages(vma);
>  	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
>  	unsigned long off = vma->vm_pgoff;
>  	unsigned long pfn;
> 

Applied to mb/next.

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP SoCs