linux-kernel - Re: [PATCH v4 1/3] iommu/tegra-smmu: Use fwspec in tegra_smmu_(de)attach

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Date:   Fri, 2 Oct 2020 12:56:38 -0700
From:   Nicolin Chen <nicoleotsuka@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     thierry.reding@...il.com, joro@...tes.org, vdumpa@...dia.com,
        jonathanh@...dia.com, linux-tegra@...r.kernel.org,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/3] iommu/tegra-smmu: Use fwspec in
 tegra_smmu_(de)attach_dev

On Fri, Oct 02, 2020 at 05:52:00PM +0300, Dmitry Osipenko wrote:
> 02.10.2020 17:22, Dmitry Osipenko пишет:
> > 02.10.2020 09:08, Nicolin Chen пишет:
> >>  static int tegra_smmu_attach_dev(struct iommu_domain *domain,
> >>  				 struct device *dev)
> >>  {
> >> +	struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
> >>  	struct tegra_smmu *smmu = dev_iommu_priv_get(dev);
> >>  	struct tegra_smmu_as *as = to_smmu_as(domain);
> >> -	struct device_node *np = dev->of_node;
> >> -	struct of_phandle_args args;
> >>  	unsigned int index = 0;
> >>  	int err = 0;
> > 
> > Looks like there is no need to initialize 'index' and 'err' variables
> > anymore.
> > 
> 
> Same for tegra_smmu_detach_dev().

Can remove them.