Hi Stephen, Hi Joerg, I've just picked up commit c1ae1c59c8c6 ("s390/pci: fix iommu bitmap allocation") into the s390 fixes branch to still make it into v6.6 (and eventually get into stable). It will get conflicts in arch/s390/pci/pci_dma.c with commit c76c067e488c ("s390/pci: Use dma-iommu layer") from iommu tree, which is targeting the v6.7 merge window. The latter commit removes arch/s390/pci/pci_dma.c, so that's the way to go for the conflict resolution. Joerg, I believe it's your decision whether you would like to mention this trivial merge conflict in your pull request to Linus later. Thank you.