linux-kernel - Re: [PATCH v3 4/7] dma-mapping: Add helpers for dma_range

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Date: Sat, 24 Feb 2024 19:47:27 +0800
From: Hanjun Guo <guohanjun@...wei.com>
To: Robin Murphy <robin.murphy@....com>
CC: Vineet Gupta <vgupta@...nel.org>, Russell King <linux@...linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
	Huacai Chen <chenhuacai@...nel.org>, WANG Xuerui <kernel@...0n.name>, Thomas
 Bogendoerfer <tsbogend@...ha.franken.de>, Paul Walmsley
	<paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, Albert Ou
	<aou@...s.berkeley.edu>, Lorenzo Pieralisi <lpieralisi@...nel.org>, Sudeep
 Holla <sudeep.holla@....com>, "K. Y. Srinivasan" <kys@...rosoft.com>, Haiyang
 Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, Dexuan Cui
	<decui@...rosoft.com>, Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
	David Woodhouse <dwmw2@...radead.org>, Lu Baolu <baolu.lu@...ux.intel.com>,
	Niklas Schnelle <schnelle@...ux.ibm.com>, Matthew Rosato
	<mjrosato@...ux.ibm.com>, Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
	Jean-Philippe Brucker <jean-philippe@...aro.org>, Rob Herring
	<robh+dt@...nel.org>, Frank Rowand <frowand.list@...il.com>, Marek Szyprowski
	<m.szyprowski@...sung.com>, Jason Gunthorpe <jgg@...pe.ca>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-acpi@...r.kernel.org>, <iommu@...ts.linux.dev>,
	<devicetree@...r.kernel.org>, Rob Herring <robh@...nel.org>, Christoph
 Hellwig <hch@....de>, Jason Gunthorpe <jgg@...dia.com>
Subject: Re: [PATCH v3 4/7] dma-mapping: Add helpers for dma_range_map bounds

On 2024/2/10 0:50, Robin Murphy wrote:
> Several places want to compute the lower and/or upper bounds of a
> dma_range_map, so let's factor that out into reusable helpers.
> 
> Acked-by: Rob Herring <robh@...nel.org>
> Reviewed-by: Christoph Hellwig <hch@....de>
> Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
> Signed-off-by: Robin Murphy <robin.murphy@....com>
> ---
> v2: fix warning for 32-bit builds
> ---
>   arch/loongarch/kernel/dma.c |  9 ++-------
>   drivers/acpi/arm64/dma.c    |  8 +-------
>   drivers/of/device.c         | 11 ++---------
>   include/linux/dma-direct.h  | 18 ++++++++++++++++++
>   4 files changed, 23 insertions(+), 23 deletions(-)

For the ARM64 code,

Reviewed-by: Hanjun Guo <guohanjun@...wei.com>

Thanks
Hanjun