linux-kernel - Re: [PATCH v2 1/9] ARM: OMAP: iommu: fix including iommu.h without IOMMU

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Message-ID: <2682570.BmY78BED3q@avalon>
Date:	Wed, 19 Sep 2012 11:35:36 +0200
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Omar Ramirez Luna <omar.luna@...aro.org>
Cc:	Tony Lindgren <tony@...mide.com>,
	Benoit Cousson <b-cousson@...com>,
	Ohad Ben-Cohen <ohad@...ery.com>,
	Joerg Roedel <joerg.roedel@....com>,
	Russell King <linux@....linux.org.uk>,
	Rajendra Nayak <rnayak@...com>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-omap@...r.kernel.org
Subject: Re: [PATCH v2 1/9] ARM: OMAP: iommu: fix including iommu.h without IOMMU_API selected

On Wednesday 12 September 2012 14:45:44 Omar Ramirez Luna wrote:
> If included without IOMMU_API being selected it will break
> compilation:
> 
> arch/arm/plat-omap/include/plat/iommu.h:
> 	In function 'dev_to_omap_iommu':
> arch/arm/plat-omap/include/plat/iommu.h:148:
> 	error: 'struct dev_archdata' has no member named 'iommu'
> 
> This will be seen when hwmod includes iommu.h to get the
> structure for attributes. Also needed for tidspbridge
> incremental migration to use iommu code.
> 
> Cc: Tony Lindgren <tony@...mide.com>
> Signed-off-by: Omar Ramirez Luna <omar.luna@...aro.org>

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

I had the same patch in my tree already :-)

> ---
>  arch/arm/plat-omap/include/plat/iommu.h |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/plat-omap/include/plat/iommu.h
> b/arch/arm/plat-omap/include/plat/iommu.h index 88be3e6..e58d571 100644
> --- a/arch/arm/plat-omap/include/plat/iommu.h
> +++ b/arch/arm/plat-omap/include/plat/iommu.h
> @@ -126,6 +126,7 @@ struct omap_iommu_arch_data {
>  	struct omap_iommu *iommu_dev;
>  };
> 
> +#ifdef CONFIG_IOMMU_API
>  /**
>   * dev_to_omap_iommu() - retrieves an omap iommu object from a user device
>   * @dev: iommu client device
> @@ -136,6 +137,7 @@ static inline struct omap_iommu
> *dev_to_omap_iommu(struct device *dev)
> 
>  	return arch_data->iommu_dev;
>  }
> +#endif
> 
>  /* IOMMU errors */
>  #define OMAP_IOMMU_ERR_TLB_MISS		(1 << 0)

-- 
Regards,

Laurent Pinchart

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