linux-kernel - Re: [PATCH v2 7/7] dma-mapping: Simplify arch_setup_dma

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Message-ID: <170265394575.3996198.15248667149121379629.robh@kernel.org>
Date: Fri, 15 Dec 2023 09:25:46 -0600
From: Rob Herring <robh@...nel.org>
To: Robin Murphy <robin.murphy@....com>
Cc: linux-kernel@...r.kernel.org, Vineet Gupta <vgupta@...nel.org>, 
	David Woodhouse <dwmw2@...radead.org>, Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>, Dexuan Cui <decui@...rosoft.com>, 
	Catalin Marinas <catalin.marinas@....com>, iommu@...ts.linux.dev, 
	"K. Y. Srinivasan" <kys@...rosoft.com>, Gerald Schaefer <gerald.schaefer@...ux.ibm.com>, 
	Matthew Rosato <mjrosato@...ux.ibm.com>, Russell King <linux@...linux.org.uk>, 
	Will Deacon <will@...nel.org>, Huacai Chen <chenhuacai@...nel.org>, Jason Gunthorpe <jgg@...pe.ca>, 
	linux-acpi@...r.kernel.org, Sudeep Holla <sudeep.holla@....com>, 
	Christoph Hellwig <hch@....de>, Lorenzo Pieralisi <lpieralisi@...nel.org>, Albert Ou <aou@...s.berkeley.edu>, 
	Niklas Schnelle <schnelle@...ux.ibm.com>, Paul Walmsley <paul.walmsley@...ive.com>, 
	linux-arm-kernel@...ts.infradead.org, 
	Jean-Philippe Brucker <jean-philippe@...aro.org>, Wei Liu <wei.liu@...nel.org>, 
	Palmer Dabbelt <palmer@...belt.com>, Haiyang Zhang <haiyangz@...rosoft.com>, 
	Marek Szyprowski <m.szyprowski@...sung.com>, Joerg Roedel <joro@...tes.org>, 
	Lu Baolu <baolu.lu@...ux.intel.com>, Frank Rowand <frowand.list@...il.com>, 
	Hanjun Guo <guohanjun@...wei.com>, Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org, 
	WANG Xuerui <kernel@...0n.name>
Subject: Re: [PATCH v2 7/7] dma-mapping: Simplify arch_setup_dma_ops()


On Wed, 13 Dec 2023 17:18:00 +0000, Robin Murphy wrote:
> The dma_base, size and iommu arguments are only used by ARM, and can
> now easily be deduced from the device itself, so there's no need to pass
> them through the callchain as well.
> 
> Reviewed-by: Christoph Hellwig <hch@....de>
> Signed-off-by: Robin Murphy <robin.murphy@....com>
> ---
> v2: Make sure the ARM changes actually build (oops...)
> ---
>  arch/arc/mm/dma.c               |  3 +--
>  arch/arm/mm/dma-mapping-nommu.c |  3 +--
>  arch/arm/mm/dma-mapping.c       | 18 ++++++++++--------
>  arch/arm64/mm/dma-mapping.c     |  3 +--
>  arch/mips/mm/dma-noncoherent.c  |  3 +--
>  arch/riscv/mm/dma-noncoherent.c |  3 +--
>  drivers/acpi/scan.c             |  3 +--
>  drivers/hv/hv_common.c          |  6 +-----
>  drivers/of/device.c             |  4 +---
>  include/linux/dma-map-ops.h     |  6 ++----
>  10 files changed, 20 insertions(+), 32 deletions(-)
> 

Acked-by: Rob Herring <robh@...nel.org>