diff options
Diffstat (limited to 'target/linux/apm821xx/patches-4.14/022-0001-crypto-Use-zeroing-memory-allocator-instead-of-alloc.patch')
| -rw-r--r-- | target/linux/apm821xx/patches-4.14/022-0001-crypto-Use-zeroing-memory-allocator-instead-of-alloc.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/apm821xx/patches-4.14/022-0001-crypto-Use-zeroing-memory-allocator-instead-of-alloc.patch b/target/linux/apm821xx/patches-4.14/022-0001-crypto-Use-zeroing-memory-allocator-instead-of-alloc.patch new file mode 100644 index 0000000000..57823fad0c --- /dev/null +++ b/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; + } + |