linux-kernel - Re: [PATCH v2 8/8] iommu/dart: Remove force

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Message-ID: <YS6h0E1lM5owyLWp@sunset>
Date:   Tue, 31 Aug 2021 17:40:32 -0400
From:   Alyssa Rosenzweig <alyssa@...enzweig.io>
To:     Sven Peter <sven@...npeter.dev>
Cc:     iommu@...ts.linux-foundation.org, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Arnd Bergmann <arnd@...nel.org>,
        Mohamed Mediouni <mohamed.mediouni@...amail.com>,
        Alexander Graf <graf@...zon.com>,
        Hector Martin <marcan@...can.st>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 8/8] iommu/dart: Remove force_bypass logic

> Now that the dma-iommu API supports IOMMU granules which are larger than
> the CPU page size and that the kernel no longer runs into a BUG_ON when
> devices are attached to a domain with such a granule there's no need to
> force bypass mode anymore.
> 
> Signed-off-by: Sven Peter <sven@...npeter.dev>
> ---
>  drivers/iommu/apple-dart.c | 14 ++------------
>  1 file changed, 2 insertions(+), 12 deletions(-)

This was such an ugly hack, glad to see it go. This patch is

	Reviewed-by: Alyssa Rosenzweig <alyssa@...enzweig.io>