Commits
Sebastian Ott committed 8ee2db3cf1d
s390/pci: ensure to not cross a dma segment boundary When we use the iommu_area_alloc helper to get dma addresses we specify the boundary_size parameter but not the offset (called shift in this context). As long as the offset (start_dma) is a multiple of the boundary we're ok (on current machines start_dma always seems to be 4GB). Don't leave this to chance and specify the offset for iommu_area_alloc. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>