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Date: Thu, 31 Oct 2019 06:38:31 -0700
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH RFC 1/5] dma/direct: turn ARCH_ZONE_DMA_BITS into a
 variable
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To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>, Robin Murphy <robin.murphy@arm.com>, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, Marek Szyprowski <m.szyprowski@samsung.com>, mbrugger@suse.com, f.fainelli@gmail.com, wahrenst@gmx.net, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, Heiko Carstens <heiko.carstens@de.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Christian Borntraeger <borntraeger@de.ibm.com>, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org

On Thu, Oct 31, 2019 at 11:30:36AM +0100, Nicolas Saenz Julienne wrote:
> On Wed, 2019-10-30 at 14:49 -0700, Christoph Hellwig wrote:
> > On Mon, Oct 14, 2019 at 08:31:03PM +0200, Nicolas Saenz Julienne wrote:
> > > Some architectures, notably ARM, are interested in tweaking this
> > > depending on their runtime DMA addressing limitations.
> > > 
> > > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
> > 
> > Do you want me to pick this up for the 5.5 dma-mapping tree, or do you
> > want me to wait for the rest to settle?
> 
> I'd say take it, this will be ultimately needed once we push forward with ARM.

Can you resend a version that applies against 5.4-rc?  The current one
has conflicts in the arm64 code.