Re: swiotlb/caamjr regression (Was: [GIT PULL] (swiotlb) stable/for-linus-5.12)

On Thu, Jun 17, 2021 at 09:39:15AM +0900, Dominique MARTINET wrote:

Konrad Rzeszutek Wilk wrote on Wed, Jun 16, 2021 at 08:27:39PM -0400:

quoted

Thank you for testing that - and this is a bummer indeed.

Hm, actually not that surprising if it was working without the offset
adjustments and doing non-aligned mappings -- perhaps the nvme code just
needs to round the offsets down instead of expecting swiotlb to do it?

It can't.  The whole point of the series was to keep the original offsets.