From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH 1/6] driver core: Introduce device_iommu_mapped() function
Date: Wed, 12 Dec 2018 12:04:35 +0100
Message-ID: <20181212110435.GC1990@kroah.com>
References: <20181211134343.10664-1-joro@8bytes.org>
 <20181211134343.10664-2-joro@8bytes.org>
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To: Joerg Roedel <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org, Russell Currey <ruscur@russell.cc>, Sam Bobroff <sbobroff@linux.ibm.com>, oohall@gmail.com, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Hanjun Guo <hanjun.guo@linaro.org>, Sudeep Holla <sudeep.holla@arm.com>, Dan Williams <dan.j.williams@intel.com>, Vinod Koul <vkoul@kernel.org>, jroedel@suse.de, Mathias Nyman <mathias.nyman@intel.com>, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, dmaengine@vger.kernel.org, linux-usb@vger.kernel.org
List-Id: linux-acpi@vger.kernel.org

On Tue, Dec 11, 2018 at 02:43:38PM +0100, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@suse.de>
> 
> Some places in the kernel check the iommu_group pointer in
> 'struct device' in order to find ot whether a device is
> mapped by an IOMMU.
> 
> This is not good way to make this check, as the pointer will
> be moved to 'struct dev_iommu_data'. This way to make the
> check is also not very readable.
> 
> Introduce an explicit function to perform this check.
> 
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

No need to have a cc: line if I have already acked it :)

thanks,

greg k-h