linux-kernel - Re: [PATCH v6 04/07] iommu/ipmmu-vmsa: Break out domain allocation code

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Date:   Fri, 11 Nov 2016 03:02:26 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Magnus Damm <magnus.damm@...il.com>
Cc:     iommu@...ts.linux-foundation.org,
        laurent.pinchart+renesas@...asonboard.com, geert+renesas@...der.be,
        joro@...tes.org, linux-kernel@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, horms+renesas@...ge.net.au,
        robin.murphy@....com, m.szyprowski@...sung.com
Subject: Re: [PATCH v6 04/07] iommu/ipmmu-vmsa: Break out domain allocation code

Hi Magnus,

Thank you for the patch.

On Thursday 20 Oct 2016 08:36:13 Magnus Damm wrote:
> From: Magnus Damm <damm+renesas@...nsource.se>
> 
> Break out the domain allocation code into a separate function.
> This is preparation for future code sharing.
> 
> Signed-off-by: Magnus Damm <damm+renesas@...nsource.se>
> Reviewed-by: Joerg Roedel <jroedel@...e.de>

This looks good to me,

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

(assuming my review of the next patches in the series won't make me conclude 
that this patch isn't needed :-))

> ---
> 
>  Changes since V5:
>  - None
> 
>  Changes since V4:
>  - None
> 
>  Changes since V3:
>  - None
> 
>  Changes since V2:
>  - Included this new patch as-is from the following series:
>    [PATCH 00/04] iommu/ipmmu-vmsa: IPMMU CONFIG_IOMMU_DMA update
> 
>  drivers/iommu/ipmmu-vmsa.c |   13 +++++++++----
>  1 file changed, 9 insertions(+), 4 deletions(-)
> 
> --- 0008/drivers/iommu/ipmmu-vmsa.c
> +++ work/drivers/iommu/ipmmu-vmsa.c	2016-09-20 21:56:59.220607110 +0900
> @@ -507,13 +507,10 @@ static irqreturn_t ipmmu_irq(int irq, vo
>   * IOMMU Operations
>   */
> 
> -static struct iommu_domain *ipmmu_domain_alloc(unsigned type)
> +static struct iommu_domain *__ipmmu_domain_alloc(unsigned type)
>  {
>  	struct ipmmu_vmsa_domain *domain;
> 
> -	if (type != IOMMU_DOMAIN_UNMANAGED)
> -		return NULL;
> -
>  	domain = kzalloc(sizeof(*domain), GFP_KERNEL);
>  	if (!domain)
>  		return NULL;
> @@ -523,6 +520,14 @@ static struct iommu_domain *ipmmu_domain
>  	return &domain->io_domain;
>  }
> 
> +static struct iommu_domain *ipmmu_domain_alloc(unsigned type)
> +{
> +	if (type != IOMMU_DOMAIN_UNMANAGED)
> +		return NULL;
> +
> +	return __ipmmu_domain_alloc(type);
> +}
> +
>  static void ipmmu_domain_free(struct iommu_domain *io_domain)
>  {
>  	struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);

-- 
Regards,

Laurent Pinchart