linux-kernel - Re: [PATCH v2 0/2] Preserve the flags portion on 1:1 dma-ranges mapping

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Message-ID: <20241127134402.GA3351562-robh@kernel.org>
Date: Wed, 27 Nov 2024 07:44:02 -0600
From: Rob Herring <robh@...nel.org>
To: Andrea della Porta <andrea.porta@...e.com>
Cc: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczynski <kw@...ux.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Bartosz Golaszewski <brgl@...ev.pl>,
	Derek Kiernan <derek.kiernan@....com>,
	Dragan Cvetic <dragan.cvetic@....com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Saravana Kannan <saravanak@...gle.com>, linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, linux-gpio@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>,
	Stefan Wahren <wahrenst@....net>,
	Herve Codina <herve.codina@...tlin.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH v2 0/2] Preserve the flags portion on 1:1 dma-ranges
 mapping

On Sun, Nov 24, 2024 at 11:05:35AM +0100, Andrea della Porta wrote:
> Empty dma-ranges in DT nodes using 3-cell address spcifier cause the
> flag portion to be dropped by of_translate_one(), failing the translation
> chain. This patch aims at fixing this issue.
> 
> Part of this patchset was originally preparatory for a bigger patchset
> (see [1]). It has been split in a standalone one for better management
> and because it contains a bugfix which is probably of interest to stable
> branch.
> I've also added new tests to unittest to prove it.
> 
> Many thanks,
> Andrea
> 
> References:
> [1] - https://lore.kernel.org/all/3029857353c9499659369c1540ba887d7860670f.1730123575.git.andrea.porta@suse.com/
> 
> 
> Changes in V2:
> 
> - Added blank lines between paragraphs in commit message for patch 2
> - Fixed a comment to explain the code behaviour in a straighter way
> 
> 
> Andrea della Porta (2):
>   of/unittest: Add empty dma-ranges address translation tests
>   of: address: Preserve the flags portion on 1:1 dma-ranges mapping
> 
>  drivers/of/address.c                        |  3 +-
>  drivers/of/unittest-data/tests-address.dtsi |  2 ++
>  drivers/of/unittest.c                       | 39 +++++++++++++++++++++
>  3 files changed, 43 insertions(+), 1 deletion(-)

Applied, thanks!

Rob