Re: [PATCH v11 06/11] iommu/arm-smmu-v3: Add ARM_SMMU_OPT_KDUMP_ADOPT for kdump kernel

[John Garry]

On 10/22/26 13:22, Jason Gunthorpe wrote:
> On Thu, Oct 22, 2026 at 09:41:18AM +0100, John Garry wrote:
>
> > No, that's the point. Currently you first try the adopt mechanism; if a
> > problem is found there, you fall back to the normal full reset. My idea is
> > that if a problem is found with the adopt mechanism, you just re-probe with
> > the normal full reset method, so that you don't need to undo some adopt work
> > during the probe.
> It is hard to convay information across a re-prode to tell the
> second probe to act differently.

For sure, maybe a special code to be checked could be stashed somewhere. 
But, again, if this is not going to make the driver probe much cleaner, 
then not worth it.