On Thu, Jun 18, 2020 at 10:02:58AM +0100, John Garry wrote: > On 15/06/2020 07:46, Christoph Hellwig wrote: >> Hi all, >> >> this series fixes the ATAPI DMA drain refactoring for SAS HBAs that >> use libsas. >> . >> > > Something I meant to ask before and was curious about, specifically since > ipr doesn't actually use libsas: Why not wire up other SAS HBAs, like > megaraid_sas? megaraid_sas and mpt3sas don't use the libata code at all. ipr actually is a special case and uses libata directly instead of libsas (something I hadn't realized, but which doesn't change anything for the patches itself, just possibly the commit log).