diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2013-11-06 19:50:09 +0400 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2013-11-14 23:04:41 +0400 |
| commit | ac7d631f7d9f9e4e6116c4a72b6308067d0a2226 (patch) | |
| tree | 4d0dd8fd5866c28d56151a013108838a8eea7d0b | |
| parent | 50137a7df982f3767fe0b3b0cd0b9cfaf09c2cd9 (diff) | |
| download | linux-ac7d631f7d9f9e4e6116c4a72b6308067d0a2226.tar.xz | |
ioatdma: Fix bug in selftest after removal of DMA_MEMSET.
Commit 48a9db4 (3.11) removed the memset op in the xor selftest for ioatdma.
The issue is that with the removal of that op, it never replaced the memset
with a CPU memset. The memory being operated on is expected to be zeroes but
was not. This is causing the xor selftest to fail.
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| -rw-r--r-- | drivers/dma/ioat/dma_v3.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index a4798f0cc225..44786ad2a4cf 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -1376,6 +1376,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device) goto free_resources; } + memset(page_address(dest), 0, PAGE_SIZE); + /* test for non-zero parity sum */ op = IOAT_OP_XOR_VAL; |