FYI, we noticed a +647 bytes kernel size regression due to commit: commit: fa19d327989ebd82c439492e995a357bb30d410e (dma-mapping: move the remaining DMA API calls out of line) git://git.infradead.org/users/hch/misc.git dma-bypass.4 Details as below (size data is obtained by `nm --size-sort vmlinux`): bfe91da2: Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm fa19d327: dma-mapping: move the remaining DMA API calls out of line +---------------------------------+----------+----------+-------+ | symbol | bfe91da2 | fa19d327 | delta | +---------------------------------+----------+----------+-------+ | nm.T.dma_map_resource | 0 | 100 | 100 | | bzImage | 442432 | 442528 | 96 | | nm.T.dma_map_page_attrs | 0 | 71 | 71 | | nm.T.dma_map_sg_attrs | 0 | 69 | 69 | | nm.T.dma_unmap_page_attrs | 0 | 61 | 61 | | nm.T.dma_unmap_resource | 0 | 61 | 61 | | nm.T.dma_unmap_sg_attrs | 0 | 61 | 61 | | nm.T.dma_sync_sg_for_cpu | 0 | 56 | 56 | | nm.T.dma_sync_sg_for_device | 0 | 56 | 56 | | nm.T.dma_sync_single_for_cpu | 0 | 56 | 56 | | nm.T.dma_sync_single_for_device | 0 | 56 | 56 | +---------------------------------+----------+----------+-------+ Thanks