OpenWrt
| /branches/gl-inet/target/linux/apm821xx/patches-4.14/022-0001-crypto-Use-zeroing-memory-allocator-instead-of-alloc.patch |
|---|
| @@ -0,0 +1,39 @@ |
| From 75d68369b544acc5d14c18a827654dfff248d09d Mon Sep 17 00:00:00 2001 |
| From: Himanshu Jha <himanshujha199640@gmail.com> |
| Date: Sun, 31 Dec 2017 17:54:23 +0530 |
| Subject: [PATCH 1/8] crypto: Use zeroing memory allocator instead of |
| allocator/memset |
| 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. |
| Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> |
| Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
| --- |
| drivers/crypto/amcc/crypto4xx_core.c | 8 +++----- |
| 1 file changed, 3 insertions(+), 5 deletions(-) |
| --- a/drivers/crypto/amcc/crypto4xx_core.c |
| +++ b/drivers/crypto/amcc/crypto4xx_core.c |
| @@ -282,14 +282,12 @@ static u32 crypto4xx_put_pd_to_pdr(struc |
| */ |
| static u32 crypto4xx_build_gdr(struct crypto4xx_device *dev) |
| { |
| - dev->gdr = dma_alloc_coherent(dev->core_dev->device, |
| - sizeof(struct ce_gd) * PPC4XX_NUM_GD, |
| - &dev->gdr_pa, GFP_ATOMIC); |
| + dev->gdr = dma_zalloc_coherent(dev->core_dev->device, |
| + sizeof(struct ce_gd) * PPC4XX_NUM_GD, |
| + &dev->gdr_pa, GFP_ATOMIC); |
| if (!dev->gdr) |
| return -ENOMEM; |
| - memset(dev->gdr, 0, sizeof(struct ce_gd) * PPC4XX_NUM_GD); |
| - |
| return 0; |
| } |