RDMA/cxgb4: Fix gcc warning on 32-bit arch

Building mem.o for 32 bits x86 triggers a GCC warning:

    drivers/infiniband/hw/cxgb4/mem.c: In function '_c4iw_write_mem_dma_aligned':
    drivers/infiniband/hw/cxgb4/mem.c:79:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

Silence that warning by casting "&wr_wait" to unsigned long before
casting it to __be64.  That's what _c4iw_write_mem_inline() already does.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index 84e45006451c..41b11951a30a 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -76,7 +76,7 @@ static int _c4iw_write_mem_dma_aligned(struct c4iw_rdev *rdev, u32 addr,
         INIT_ULPTX_WR(req, wr_len, 0, 0);
         req->wr.wr_hi = cpu_to_be32(FW_WR_OP(FW_ULPTX_WR) |
                         (wait ? FW_WR_COMPL(1) : 0));
-        req->wr.wr_lo = wait ? (__force __be64)&wr_wait : 0;
+        req->wr.wr_lo = wait ? (__force __be64)(unsigned long) &wr_wait : 0L;
         req->wr.wr_mid = cpu_to_be32(FW_WR_LEN16(DIV_ROUND_UP(wr_len, 16)));
         req->cmd = cpu_to_be32(ULPTX_CMD(ULP_TX_MEM_WRITE));
         req->cmd |= cpu_to_be32(V_T5_ULP_MEMIO_ORDER(1));