Messages in this thread Patch in this message | | | From | Brian Norris <> | Subject | [PATCH] ntb: test: fix pointer size warning | Date | Fri, 18 Mar 2016 10:11:20 -0700 |
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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 <computersforpeace@gmail.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: Allen Hubbe <Allen.Hubbe@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
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