[PATCH] RDMA/qedr: Use zeroing memory allocator than allocator/memset

From: Himanshu Jha
Date: Sun Dec 31 2017 - 07:31:21 EST


Use dma_zalloc_coherent for allocating zeroed
memory and remove unnecessary memset function.

Done using Coccinelle.
Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci
0-day tested with no failures.

Suggested-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxx>
Signed-off-by: Himanshu Jha <himanshujha199640@xxxxxxxxx>
---
drivers/infiniband/hw/qedr/verbs.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index b26aa88..3b9c898 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -604,12 +604,11 @@ static struct qedr_pbl *qedr_alloc_pbl_tbl(struct qedr_dev *dev,
return ERR_PTR(-ENOMEM);

for (i = 0; i < pbl_info->num_pbls; i++) {
- va = dma_alloc_coherent(&pdev->dev, pbl_info->pbl_size,
- &pa, flags);
+ va = dma_zalloc_coherent(&pdev->dev, pbl_info->pbl_size,
+ &pa, flags);
if (!va)
goto err;

- memset(va, 0, pbl_info->pbl_size);
pbl_table[i].va = va;
pbl_table[i].pa = pa;
}
--
2.7.4