linux-kernel - Re: [PATCH 7/7] x86: switch the VIA 32-bit DMA quirk to use the struct device flag

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Message-ID: <alpine.DEB.2.21.1805280808280.1585@nanos.tec.linutronix.de>
Date:   Mon, 28 May 2018 08:10:40 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Christoph Hellwig <hch@....de>
cc:     Ingo Molnar <mingo@...hat.com>, Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        x86@...nel.org, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, linux-ia64@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH 7/7] x86: switch the VIA 32-bit DMA quirk to use the
 struct device flag

n Fri, 25 May 2018, Christoph Hellwig wrote:

x86/pci-dma: ...

Please

> Instead of globally disabling > 32bit DMA using the arch_dma_supported
> hook walk the PCI bus under the actually affected bridge and mark every
> device with the dma_32bit_limit flag.  This also gets rid of the
> arch_dma_supported hook entirely.

Shouldn't this go before the other two? 
 
> Signed-off-by: Christoph Hellwig <hch@....de>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>