linux-kernel - Re: [RFC PATCHv3 02/11] iommu/omap: Use get_vm

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Message-ID: <20140103024038.GD1913@gchen.bj.intel.com>
Date:	Thu, 2 Jan 2014 21:40:38 -0500
From:	"Chen, Gong" <gong.chen@...ux.intel.com>
To:	Laura Abbott <lauraa@...eaurora.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Kyungmin Park <kmpark@...radead.org>,
	Dave Hansen <dave@...1.net>, linux-mm@...ck.org,
	Joerg Roedel <joro@...tes.org>, linux-kernel@...r.kernel.org,
	iommu@...ts.linux-foundation.org
Subject: Re: [RFC PATCHv3 02/11] iommu/omap: Use get_vm_area directly

On Thu, Jan 02, 2014 at 01:53:20PM -0800, Laura Abbott wrote:
> diff --git a/drivers/iommu/omap-iovmm.c b/drivers/iommu/omap-iovmm.c
> index d147259..6280d50 100644
> --- a/drivers/iommu/omap-iovmm.c
> +++ b/drivers/iommu/omap-iovmm.c
> @@ -214,7 +214,7 @@ static void *vmap_sg(const struct sg_table *sgt)
>  	if (!total)
>  		return ERR_PTR(-EINVAL);
>  
> -	new = __get_vm_area(total, VM_IOREMAP, VMALLOC_START, VMALLOC_END);
> +	new = get_vm_area(total, VM_IOREMAP);
This driver is a module but get_vm_area is not exported. You need to add
one extra EXPORT_SYMBOL_GPL(get_vm_area).


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