diff options
| author | Hui Tang <tanghui20@huawei.com> | 2021-03-19 13:45:05 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-03-26 12:15:57 +0300 |
| commit | a9214b0b6ed245b0c5239e0576b7de509815c2a0 (patch) | |
| tree | e91577fde9558cce5aa3e76b640e396f277a2059 /drivers/crypto/hisilicon/hpre | |
| parent | ed48466d3ff94fac09ca5c521a24501eb5908277 (diff) | |
| download | linux-a9214b0b6ed245b0c5239e0576b7de509815c2a0.tar.xz | |
crypto: hisilicon - fix the check on dma address
System may be able to get physical address of zero if not reserved by
firmware.
The dma address obtained by 'dma_alloc_coherent' is valid, since already
checking cpu va before, so do not check again.
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/hisilicon/hpre')
| -rw-r--r-- | drivers/crypto/hisilicon/hpre/hpre_crypto.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/crypto/hisilicon/hpre/hpre_crypto.c b/drivers/crypto/hisilicon/hpre/hpre_crypto.c index b77473be5131..c90d0b82c3fa 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_crypto.c +++ b/drivers/crypto/hisilicon/hpre/hpre_crypto.c @@ -298,8 +298,6 @@ static void hpre_hw_data_clr_all(struct hpre_ctx *ctx, dma_addr_t tmp; tmp = le64_to_cpu(sqe->in); - if (unlikely(!tmp)) - return; if (src) { if (req->src) @@ -309,8 +307,6 @@ static void hpre_hw_data_clr_all(struct hpre_ctx *ctx, } tmp = le64_to_cpu(sqe->out); - if (unlikely(!tmp)) - return; if (req->dst) { if (dst) @@ -1358,15 +1354,11 @@ static void hpre_ecdh_hw_data_clr_all(struct hpre_ctx *ctx, dma_addr_t dma; dma = le64_to_cpu(sqe->in); - if (unlikely(!dma)) - return; if (src && req->src) dma_free_coherent(dev, ctx->key_sz << 2, req->src, dma); dma = le64_to_cpu(sqe->out); - if (unlikely(!dma)) - return; if (req->dst) dma_free_coherent(dev, ctx->key_sz << 1, req->dst, dma); @@ -1657,15 +1649,11 @@ static void hpre_curve25519_hw_data_clr_all(struct hpre_ctx *ctx, dma_addr_t dma; dma = le64_to_cpu(sqe->in); - if (unlikely(!dma)) - return; if (src && req->src) dma_free_coherent(dev, ctx->key_sz, req->src, dma); dma = le64_to_cpu(sqe->out); - if (unlikely(!dma)) - return; if (req->dst) dma_free_coherent(dev, ctx->key_sz, req->dst, dma); |