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* parisc: properly type the return value of parisc_walk_treeChristoph Hellwig2019-02-211-1/+1
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Helge Deller <deller@gmx.de>
* parisc: turn GET_IOC into an inline functionChristoph Hellwig2019-02-211-4/+8
| | | | | | | This makes the function both more readable and more typesafe. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Helge Deller <deller@gmx.de>
* parisc: move internal implementation details out of <asm/dma-mapping.h>Christoph Hellwig2019-02-211-0/+51
Move everything that is not required for the public facing DMA API out of <asm/dma-mapping.h> and into a new drivers/parisc/iommu.h header. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Helge Deller <deller@gmx.de>