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 17:52:00 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Nicolin Chen <nicoleotsuka@...il.com>, thierry.reding@...il.com,
        joro@...tes.org
Cc:     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

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().