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))