Commits
Christoph Hellwig committed 9d7a224b463
dma-direct: always allow dma mask <= physiscal memory size This way an architecture with less than 4G of RAM can support dma_mask smaller than 32-bit without a ZONE_DMA. Apparently that is a common case on powerpc. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>