Changeset 54816d3e69d1 ("RDMA: Explicitly pass in the dma_device to ib_register_device")
added a new parameter to ib_register_device().
Document it.
Fixes: 54816d3e69d1 ("RDMA: Explicitly pass in the dma_device to ib_register_device")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
drivers/infiniband/core/device.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index feaec8d2f0ca..a3b1fc84cdca 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -1318,7 +1318,10 @@ static void prevent_dealloc_device(struct ib_device *ib_dev)
* ib_register_device - Register an IB device with IB core
* @device: Device to register
* @name: unique string device name. This may include a '%' which will
- * cause a unique index to be added to the passed device name.
+ * cause a unique index to be added to the passed device name.
+ * @dma_device: pointer to a DMA-capable device. If %NULL, then the IB
+ * device will be used. In this case the caller should fully
+ * setup the ibdev for DMA. This usually means using dma_virt_ops.
*
* Low-level drivers use ib_register_device() to register their
* devices with the IB core. All registered clients will receive a
--
2.26.2
