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Date: Mon, 28 Sep 2020 15:31:15 -0700 From: Nicolin Chen <nicoleotsuka@...il.com> To: Dmitry Osipenko <digetx@...il.com> Cc: thierry.reding@...il.com, joro@...tes.org, krzk@...nel.org, linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org, jonathanh@...dia.com Subject: Re: [PATCH 4/5] iommu/tegra-smmu: Add PCI support On Sun, Sep 27, 2020 at 01:18:15AM +0300, Dmitry Osipenko wrote: > 26.09.2020 11:07, Nicolin Chen пишет: > ... > > +#ifdef CONFIG_PCI > > + if (!iommu_present(&pci_bus_type)) { > > Is this iommu_present() check really needed? > > > + pci_request_acs(); > > Shouldn't pci_request_acs() be invoked *after* bus_set_iommu() succeeds? Will move it after that. Thanks!
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