dma_release_from_coherent   11 include/asm-generic/dma-coherent.h int dma_release_from_coherent(struct device *dev, int order, void *vaddr);
dma_release_from_coherent  301 include/asm-x86/dma-mapping.h 	if (dma_release_from_coherent(dev, get_order(size), vaddr))