599 	struct etr_flat_buf *flat_buf;  in tmc_etr_alloc_flat_buf()  local
606 	flat_buf = kzalloc(sizeof(*flat_buf), GFP_KERNEL);  in tmc_etr_alloc_flat_buf()
607 	if (!flat_buf)  in tmc_etr_alloc_flat_buf()
610 	flat_buf->vaddr = dma_alloc_noncoherent(real_dev, etr_buf->size,  in tmc_etr_alloc_flat_buf()
611 						&flat_buf->daddr,  in tmc_etr_alloc_flat_buf()
613 	if (!flat_buf->vaddr) {  in tmc_etr_alloc_flat_buf()
614 		kfree(flat_buf);  in tmc_etr_alloc_flat_buf()
618 	flat_buf->size = etr_buf->size;  in tmc_etr_alloc_flat_buf()
619 	flat_buf->dev = &drvdata->csdev->dev;  in tmc_etr_alloc_flat_buf()
620 	etr_buf->hwaddr = flat_buf->daddr;  in tmc_etr_alloc_flat_buf()
622 	etr_buf->private = flat_buf;  in tmc_etr_alloc_flat_buf()
628 	struct etr_flat_buf *flat_buf = etr_buf->private;  in tmc_etr_free_flat_buf()  local
630 	if (flat_buf && flat_buf->daddr) {  in tmc_etr_free_flat_buf()
631 		struct device *real_dev = flat_buf->dev->parent;  in tmc_etr_free_flat_buf()
634 				     flat_buf->vaddr, flat_buf->daddr,  in tmc_etr_free_flat_buf()
637 	kfree(flat_buf);  in tmc_etr_free_flat_buf()
642 	struct etr_flat_buf *flat_buf = etr_buf->private;  in tmc_etr_sync_flat_buf()  local
643 	struct device *real_dev = flat_buf->dev->parent;  in tmc_etr_sync_flat_buf()
661 		dma_sync_single_for_cpu(real_dev, flat_buf->daddr,  in tmc_etr_sync_flat_buf()
665 					flat_buf->daddr + etr_buf->offset,  in tmc_etr_sync_flat_buf()
672 	struct etr_flat_buf *flat_buf = etr_buf->private;  in tmc_etr_get_data_flat_buf()  local
674 	*bufpp = (char *)flat_buf->vaddr + offset;  in tmc_etr_get_data_flat_buf()