The patch 099606a7b2d5 didn't cleanly apply to 5.15 due to the significant difference in codebases.
I've tried to manually bring it back to 5.15 via some minor conflict resolution but also invoking the newly introduced API using inverted logic as the conditional statements present in 5.15 are the opposite of those in 6.1 xen/swiotlib.
v2 of this patch was added and dropped due to some issues in testing. However, after further verification this version seems to be right as is.
I kindly request Juergen's ack specifically before this is added to stable queue as this patch differs quite significantly compared to the original.
Changes in v2: Include correct upstream SHA in the commit message
Changes in v3: Patch remains the same, however further verification and testing was done.
Harshvardhan Jha (1): xen/swiotlb: relax alignment requirements
drivers/xen/swiotlb-xen.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-)