extern int dma_extend(unsigned int chan, unsigned long op, void *param);
extern int register_chan_caps(const char *dmac, struct dma_chan_caps *capslist);
-#ifdef CONFIG_SYSFS
/* arch/sh/drivers/dma/dma-sysfs.c */
extern int dma_create_sysfs_files(struct dma_channel *, struct dma_info *);
extern void dma_remove_sysfs_files(struct dma_channel *, struct dma_info *);
-#else
-#define dma_create_sysfs_file(channel, info) do { } while (0)
-#define dma_remove_sysfs_file(channel, info) do { } while (0)
-#endif
#ifdef CONFIG_PCI
extern int isa_dma_bridge_buggy;