linux-kernel - Re: [PATCH 09/10] iommu/exynos: Make use of iommu_device

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Message-ID: <20170208135742.GE7339@8bytes.org>
Date:   Wed, 8 Feb 2017 14:57:42 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     Will Deacon <will.deacon@....com>,
        Robin Murphy <robin.murphy@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Alex Williamson <alex.williamson@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <jroedel@...e.de>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH 09/10] iommu/exynos: Make use of iommu_device_register
 interface

Hi Marek,

On Tue, Feb 07, 2017 at 01:36:15PM +0100, Marek Szyprowski wrote:
> >+	ret = iommu_device_sysfs_add(&data->iommu, &pdev->dev, NULL,
> >+				     "sysmmu.%pa", &ioaddr);
> 
> Can we stick to the common name across the /sysfs and use
> dev_name(data->sysmmu)
> or even dev_name(dev) here?
> 
> ret = iommu_device_sysfs_add(&data->iommu, &pdev->dev, NULL,
> dev_name(dev));

That means that we have multiple 'struct device' with the same name,
no? I think will lead to confusion when using dev_printk, as its not
clear anymore which device is refered to in the message.


	Joerg