ib_dma_virt_map_sg
EXPORT_SYMBOL(ib_dma_virt_map_sg);
int ib_dma_virt_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents);
return ib_dma_virt_map_sg(dev, sg, nents);
nents = ib_dma_virt_map_sg(dev, sgt->sgl, sgt->orig_nents);