smc_ib_buf_unmap_sg
smc_ib_buf_unmap_sg(lnk, buf_desc, DMA_FROM_DEVICE);
smc_ib_buf_unmap_sg(lnk, buf_desc, DMA_TO_DEVICE);
smc_ib_buf_unmap_sg(lnk, buf_desc,
void smc_ib_buf_unmap_sg(struct smc_link *lnk,