Fixes the following W=1 kernel build warning(s):

 drivers/infiniband/hw/qib/qib_tx.c:383: warning: Function parameter or member 'rcd' not described in 'qib_chg_pioavailkernel'

Cc: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Cc: Mike Marciniszyn <redacted>
Cc: Doug Ledford <redacted>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Lee Jones <redacted>
---
 drivers/infiniband/hw/qib/qib_tx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/qib/qib_tx.c b/drivers/infiniband/hw/qib/qib_tx.c
index 29785eb846469..6a8148851f21d 100644
--- a/drivers/infiniband/hw/qib/qib_tx.c
+++ b/drivers/infiniband/hw/qib/qib_tx.c

@@ -377,6 +377,7 @@ void qib_sendbuf_done(struct qib_devdata *dd, unsigned n)
  * @start: the starting send buffer number
  * @len: the number of send buffers
  * @avail: true if the buffers are available for kernel use, false otherwise
+ * @rcd: the context pointer
  */
 void qib_chg_pioavailkernel(struct qib_devdata *dd, unsigned start,
 	unsigned len, u32 avail, struct qib_ctxtdata *rcd)

-- 
2.25.1