We no longer need the global dma_direct_offset, update the comment to reflect the new reality. Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/kernel/dma_64.c | 7 ++++--- include/asm-powerpc/dma-mapping.h | 2 -- 2 files changed, 4 insertions(+), 5 deletions(-) Index: linux-2.6-new/arch/powerpc/kernel/dma_64.c =================================================================== --- linux-2.6-new.orig/arch/powerpc/kernel/dma_64.c +++ linux-2.6-new/arch/powerpc/kernel/dma_64.c @@ -112,10 +112,11 @@ EXPORT_SYMBOL(dma_iommu_ops); /* * Generic direct DMA implementation * - * This implementation supports a global offset that can be applied if - * the address at which memory is visible to devices is not 0. + * This implementation supports a per-device offset that can be applied if + * the address at which memory is visible to devices is not 0. Platform code + * can point archdata.dma_data at an unsigned long holding the offset. By + * default no offset is used. */ -unsigned long dma_direct_offset; static unsigned long get_dma_direct_offset(struct device *dev) { Index: linux-2.6-new/include/asm-powerpc/dma-mapping.h =================================================================== --- linux-2.6-new.orig/include/asm-powerpc/dma-mapping.h +++ linux-2.6-new/include/asm-powerpc/dma-mapping.h @@ -186,8 +186,6 @@ static inline void dma_unmap_sg(struct d extern struct dma_mapping_ops dma_iommu_ops; extern struct dma_mapping_ops dma_direct_ops; -extern unsigned long dma_direct_offset; - #else /* CONFIG_PPC64 */ #define dma_supported(dev, mask) (1) --