IB/qib: Fix sizeof checkpatch warnings

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/qib/qib_ud.c b/drivers/infiniband/hw/qib/qib_ud.c
index aaf7039..26243b7 100644
--- a/drivers/infiniband/hw/qib/qib_ud.c
+++ b/drivers/infiniband/hw/qib/qib_ud.c
@@ -127,7 +127,7 @@
 	 * present on the wire.
 	 */
 	length = swqe->length;
-	memset(&wc, 0, sizeof wc);
+	memset(&wc, 0, sizeof(wc));
 	wc.byte_len = length + sizeof(struct ib_grh);
 
 	if (swqe->wr.opcode == IB_WR_SEND_WITH_IMM) {