dmaengine_desc_get_metadata_ptr
mdptr = (__be32 *)dmaengine_desc_get_metadata_ptr(rxd->tx_in, &pl,
mdptr = (u32 *)dmaengine_desc_get_metadata_ptr(tx_out, &pl, &ml);
mdptr = (__be32 *)dmaengine_desc_get_metadata_ptr(rxd->tx_in, &pl, &ml);
mdptr = (u32 *)dmaengine_desc_get_metadata_ptr(rxd->tx_in, &pl, &ml);
EXPORT_SYMBOL_GPL(dmaengine_desc_get_metadata_ptr);
app_metadata = dmaengine_desc_get_metadata_ptr(skbuf_dma->desc, &meta_len,
void *dmaengine_desc_get_metadata_ptr(struct dma_async_tx_descriptor *desc,