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Date: Mon, 28 May 2018 08:18:46 +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 On Mon, 28 May 2018, Christoph Hellwig wrote: > On Mon, May 28, 2018 at 08:10:40AM +0200, Thomas Gleixner wrote: > > 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? > > Which other two? The boot optional removal patches? They just remove > the visible interface, but keep the implementation which is converted > to the better mechanism here, so I think the order makes sense. > But I might be missing something.. They remove the commandline switch before having the replacement in place unless I'm misreading something. Thanks, tglx
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