linux-kernel - Re: [PATCH 03/15] drm/msm/mdp5: Remove direct access of dev->iommu

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Message-ID: <20200316154209.GD304669@myrica>
Date:   Mon, 16 Mar 2020 16:42:09 +0100
From:   Jean-Philippe Brucker <jean-philippe@...aro.org>
To:     Joerg Roedel <joro@...tes.org>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        virtualization@...ts.linux-foundation.org,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Hanjun Guo <guohanjun@...wei.com>,
        Sudeep Holla <sudeep.holla@....com>,
        Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Joerg Roedel <jroedel@...e.de>
Subject: Re: [PATCH 03/15] drm/msm/mdp5: Remove direct access of
 dev->iommu_fwspec

On Tue, Mar 10, 2020 at 10:12:17AM +0100, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@...e.de>
> 
> Use the accessor functions instead of directly dereferencing
> dev->iommu_fwspec.
> 
> Signed-off-by: Joerg Roedel <jroedel@...e.de>

Reviewed-by: Jean-Philippe Brucker <jean-philippe@...aro.org>

> ---
>  drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> index e43ecd4be10a..1252e1d76340 100644
> --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> @@ -725,7 +725,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
>  
>  	if (config->platform.iommu) {
>  		iommu_dev = &pdev->dev;
> -		if (!iommu_dev->iommu_fwspec)
> +		if (!dev_iommu_fwspec_get(iommu_dev))
>  			iommu_dev = iommu_dev->parent;
>  
>  		aspace = msm_gem_address_space_create(iommu_dev,
> -- 
> 2.17.1
>