From mboxrd@z Thu Jan  1 00:00:00 1970
From: rabin@rab.in (Rabin Vincent)
Date: Fri, 8 Apr 2016 06:41:10 +0200
Subject: [PATCH v6 1/2] ARM: dma-mapping: Don't use outer_flush_range
 when the L2C is coherent
In-Reply-To: <1459415380-18004-2-git-send-email-gregory.clement@free-electrons.com>
References: <1459415380-18004-1-git-send-email-gregory.clement@free-electrons.com>
 <1459415380-18004-2-git-send-email-gregory.clement@free-electrons.com>
Message-ID: <20160408044110.GA11802@lnxrabinv.se.axis.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Thu, Mar 31, 2016 at 11:09:39AM +0200, Gregory CLEMENT wrote:
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index deac58d5f1f7..1538bb293e90 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -61,7 +61,7 @@ struct arm_dma_free_args {
>  
>  struct arm_dma_allocator {
>  	void *(*alloc)(struct arm_dma_alloc_args *args,
> -		       struct page **ret_page);
> +		       struct page **ret_page, bool is_coherent);
>  	void (*free)(struct arm_dma_free_args *args);
>  };

Could you please add this parameter to the arm_dma_alloc_args structure
instead?  As you see from the code, that's where all the other various
parameters needed by the allocators are grouped.