From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joerg Roedel <joro@8bytes.org>
Subject: Re: [PATCH 3/4] iommu/of: Don't call iommu_ops->add_device directly
Date: Fri, 11 Jan 2019 11:23:29 +0100
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To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>, Linux IOMMU <iommu@lists.linux-foundation.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Joerg Roedel <jroedel@suse.de>, Sudeep Holla <sudeep.holla@arm.com>, Robin Murphy <robin.murphy@arm.com>, Krzysztof Kozlowski <krzk@kernel.org>
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Hi Geert,

On Thu, Dec 20, 2018 at 04:42:17PM +0100, Geert Uytterhoeven wrote:
> > -       return ops->add_device(dev);
> > +       if (ops)
> 
> Is this sufficient? The old code checked for ops->add_device != NULL,
> too.

Robin brought up that all iommu-ops implementations support the
add_device call-back, so we can remove that check and make the call-back
mandatory for new implementations too.

Regards,

	Joerg