linux-kernel - Re: [PATCH v2 3/3] iommu/tegra-smmu: Add PCI support

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Message-ID: <20200930052952.GB31821@Asurada-Nvidia>
Date:   Tue, 29 Sep 2020 22:29:53 -0700
From:   Nicolin Chen <nicoleotsuka@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     thierry.reding@...il.com, joro@...tes.org, krzk@...nel.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 v2 3/3] iommu/tegra-smmu: Add PCI support

Hi Dmitry,

On Wed, Sep 30, 2020 at 08:10:07AM +0300, Dmitry Osipenko wrote:
> 30.09.2020 03:30, Nicolin Chen пишет:
> > -	group->group = iommu_group_alloc();
> > +	group->group = pci ? pci_device_group(dev) : iommu_group_alloc();
> 
> This will be nicer to write as:
> 
> if (dev_is_pci(dev))
>     group->group = pci_device_group(dev);
> else
>     group->group = generic_device_group(dev);

Why is that nicer? I don't feel mine is hard to read at all...