linux-kernel - Re: [PATCH v2] ACPI/IORT: Do not blindly trust DMA masks from firmware

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Message-Id: <161175296410.16506.7622624950228429208.b4-ty@arm.com>
Date:   Wed, 27 Jan 2021 13:09:36 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     lorenzo.pieralisi@....com, Moritz Fischer <mdf@...nel.org>
Cc:     Will Deacon <will@...nel.org>, guohanjun@...wei.com,
        sudeep.holla@....com, linux-acpi@...r.kernel.org,
        moritzf@...gle.com, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, rjw@...ysocki.net
Subject: Re: [PATCH v2] ACPI/IORT: Do not blindly trust DMA masks from firmware

On Thu, 21 Jan 2021 17:24:19 -0800, Moritz Fischer wrote:
> Address issue observed on real world system with suboptimal IORT table
> where DMA masks of PCI devices would get set to 0 as result.
> 
> iort_dma_setup() would query the root complex'/named component IORT
> entry for a DMA mask, and use that over the one the device has been
> configured with earlier.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] ACPI/IORT: Do not blindly trust DMA masks from firmware
      https://git.kernel.org/arm64/c/a1df829ead58

-- 
Catalin