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.