vchan_tx_desc_free 64 drivers/dma/virt-dma.c EXPORT_SYMBOL_GPL(vchan_tx_desc_free); vchan_tx_desc_free 48 drivers/dma/virt-dma.h extern int vchan_tx_desc_free(struct dma_async_tx_descriptor *); vchan_tx_desc_free 64 drivers/dma/virt-dma.h vd->tx.desc_free = vchan_tx_desc_free;