[PATCH] ARM: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c

[Nicolas Pitre]

On Wed, 16 Nov 2011, Catalin Marinas wrote:

> Commit 99d1717d introduces dynamic allocation of the consistent_pte
> array. The number of PTEs should be calculated based on the number of
> PMD entries rather than PGD, hence the PMD_SHIFT.
> 
> Signed-off-by: Catalin Marinas <catalin.marinas at arm.com>
> Cc: Jon Medhurst <tixy at yxit.co.uk>
> Cc: Nicolas Pitre <nicolas.pitre at linaro.org>

Acked-by: Nicolas Pitre <nico at linaro.org>


> ---
>  arch/arm/mm/dma-mapping.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index e4e7f6c..ab58456 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -168,7 +168,7 @@ static int __init consistent_init(void)
>  	pte_t *pte;
>  	int i = 0;
>  	unsigned long base = consistent_base;
> -	unsigned long num_ptes = (CONSISTENT_END - base) >> PGDIR_SHIFT;
> +	unsigned long num_ptes = (CONSISTENT_END - base) >> PMD_SHIFT;
>  
>  	consistent_pte = kmalloc(num_ptes * sizeof(pte_t), GFP_KERNEL);
>  	if (!consistent_pte) {
>