etrax_usb_buffer_alloc(struct usb_bus* bus, size_t size, int mem_flags, dma_addr_t *dma)
etrax_usb_buffer_alloc(struct usb_bus* bus, size_t size, unsigned mem_flags, dma_addr_t *dma)
etrax_usb_buffer_alloc(struct usb_bus* bus, size_t size, int mem_flags, dma_addr_t *dma){  return kmalloc(size, mem_flags);}