#include <xen/xen.h>
#include <asm/xen/hypervisor.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0)
extern const struct dma_map_ops dummy_dma_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
/* do not use this function in a driver */
static inline bool is_device_dma_coherent(struct device *dev)
{
- if (!dev)
- return false;
return dev->archdata.dma_coherent;
}