Messages in this thread | | | Date | Mon, 15 Nov 2021 05:20:17 -0800 | From | Christoph Hellwig <> | Subject | Re: [PATCH 02/11] driver core: Set DMA ownership during driver bind/unbind |
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On Mon, Nov 15, 2021 at 07:59:10AM +0100, Greg Kroah-Hartman wrote: > This feels wrong to be doing it in the driver core, why doesn't the bus > that cares about this handle it instead? > > You just caused all drivers in the kernel today to set and release this > ownership, as none set this flag. Shouldn't it be the other way around? > > And again, why not in the bus that cares? > > You only have problems with 1 driver out of thousands, this feels wrong > to abuse the driver core this way for just that one.
This isn't really a bus thingy, but related to the IOMMU subsystem. That being said as pointed out in my previous reply I'd expect this to go along with other IOMMU setup.
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