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Date: Fri, 12 Jul 2019 09:13:28 +0200
From: Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 2/3] DMA mapping: Move SME handling to x86-specific
 files
Message-ID: <20190712071328.GA22889@lst.de>
References: <20190712053631.9814-1-bauerman@linux.ibm.com> <20190712053631.9814-3-bauerman@linux.ibm.com>
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To: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: x86@kernel.org, iommu@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>, Christoph Hellwig <hch@lst.de>, Marek Szyprowski <m.szyprowski@samsung.com>, Robin Murphy <robin.murphy@arm.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Alexey Dobriyan <adobriyan@gmail.com>, Halil Pasic <pasic@linux.ibm.com>, Mike Anderson <andmike@linux.ibm.com>, Ram Pai <linuxram@us.ibm.com>

Honestly I think this code should go away without any replacement.
There is no reason why we should have a special debug printk just
for one specific reason why there is a requirement for a large DMA
mask.