This is a note to let you know that I've just added the patch titled iommu/dma: Skip extra sync during unmap w/swiotlb to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iommu-dma-skip-extra-sync-during-unmap-w-swiotlb.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it.