RDS/IW: Remove page_shift variable from iwarp transport

The existing code treated page_shift as a variable, when in fact we
always want to have the fastreg page size be the same as the arch's
page size -- and it is, so this doesn't need to be a variable.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/rds/iw_send.c

@@ -779,7 +779,7 @@ static void rds_iw_build_send_fastreg(struct rds_iw_device *rds_iwdev, struct rd
 	send->s_wr.wr.fast_reg.rkey = send->s_mr->rkey;
 	send->s_wr.wr.fast_reg.page_list = send->s_page_list;
 	send->s_wr.wr.fast_reg.page_list_len = nent;
-	send->s_wr.wr.fast_reg.page_shift = rds_iwdev->page_shift;
+	send->s_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
 	send->s_wr.wr.fast_reg.access_flags = IB_ACCESS_REMOTE_WRITE;
 	send->s_wr.wr.fast_reg.iova_start = sg_addr;