RDMA/amso1100: Fix compile warnings

Fix compile warnings on 32-bit by using "0" instead of "(u64) NULL" to
assign to "c2_vq_req->reply_msg".

Signed-off-by: Ralf Thielow <ralf.thielow@googlemail.com>

[ Change from "(unsigned long) NULL" to plain old "0" as suggested by
  Bart Van Assche <bvanassche@acm.org>.  - Roland ]

Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/infiniband/hw/amso1100/c2_vq.c b/drivers/infiniband/hw/amso1100/c2_vq.c
index 9ce7819b7b2e..2ec716fb2edb 100644
--- a/drivers/infiniband/hw/amso1100/c2_vq.c
+++ b/drivers/infiniband/hw/amso1100/c2_vq.c
@@ -107,7 +107,7 @@ struct c2_vq_req *vq_req_alloc(struct c2_dev *c2dev)
         r = kmalloc(sizeof(struct c2_vq_req), GFP_KERNEL);
         if (r) {
                 init_waitqueue_head(&r->wait_object);
-                r->reply_msg = (u64) NULL;
+                r->reply_msg = 0;
                 r->event = 0;
                 r->cm_id = NULL;
                 r->qp = NULL;
@@ -123,7 +123,7 @@ struct c2_vq_req *vq_req_alloc(struct c2_dev *c2dev)
  */
 void vq_req_free(struct c2_dev *c2dev, struct c2_vq_req *r)
 {
-        r->reply_msg = (u64) NULL;
+        r->reply_msg = 0;
         if (atomic_dec_and_test(&r->refcnt)) {
                 kfree(r);
         }
@@ -151,7 +151,7 @@ void vq_req_get(struct c2_dev *c2dev, struct c2_vq_req *r)
 void vq_req_put(struct c2_dev *c2dev, struct c2_vq_req *r)
 {
         if (atomic_dec_and_test(&r->refcnt)) {
-                if (r->reply_msg != (u64) NULL)
+                if (r->reply_msg != 0)
                         vq_repbuf_free(c2dev,
                                        (void *) (unsigned long) r->reply_msg);
                 kfree(r);