[PATCH] ntb: test: fix pointer size warning

[Brian Norris]

drivers/ntb/test/ntb_perf.c: In function ‘perf_copy’:
drivers/ntb/test/ntb_perf.c:213:10: warning: cast from pointer to integer of 
different size [-Wpointer-to-int-cast]
drivers/ntb/test/ntb_perf.c:214:14: warning: cast from pointer to integer of 
different size [-Wpointer-to-int-cast]

On 32-bit systems, we are casting a 32-bit pointer to a 64-bit value.
This shouldn't cause functional problems, but we might as well fix the
warning and allow 32-bit arithmetic for 32-bit systems.

Signed-off-by: Brian Norris <computersforpe...@gmail.com>
Cc: Dave Jiang <dave.ji...@intel.com>
Cc: Jon Mason <jdma...@kudzu.us>
Cc: Allen Hubbe <allen.hu...@emc.com>
---
 drivers/ntb/test/ntb_perf.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index c8a37ba4b4f9..835e2686998d 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -189,7 +189,7 @@ static ssize_t perf_copy(struct pthr_ctx *pctx, char *dst,
        dma_cookie_t cookie;
        size_t src_off, dst_off;
        struct perf_mw *mw = &perf->mw;
-       u64 vbase, dst_vaddr;
+       uintptr_t vbase, dst_vaddr;
        dma_addr_t dst_phys;
        int retries = 0;
 
@@ -210,8 +210,8 @@ static ssize_t perf_copy(struct pthr_ctx *pctx, char *dst,
        if (!is_dma_copy_aligned(device, src_off, dst_off, size))
                return -ENODEV;
 
-       vbase = (u64)(u64 *)mw->vbase;
-       dst_vaddr = (u64)(u64 *)dst;
+       vbase = (uintptr_t)(u64 *)mw->vbase;
+       dst_vaddr = (uintptr_t)(u64 *)dst;
        dst_phys = mw->phys_addr + (dst_vaddr - vbase);
 
        unmap = dmaengine_get_unmap_data(device->dev, 1, GFP_NOWAIT);
-- 
2.8.0.rc3.226.g39d4020