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crypto: hisilicon/hpre - don't use GFP_KERNEL to alloc mem during softirq

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[ Upstream commit 98dfa9343f ]

The hpre encryption driver may be used to encrypt and decrypt packets
during the rx softirq, it is not allowed to use GFP_KERNEL.

Fixes: c8b4b47707 ("crypto: hisilicon - add HiSilicon HPRE accelerator")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zhengchao Shao 2022-07-19 12:23:23 +08:00 • committed by Greg Kroah-Hartman
commit cb62775079
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/hisilicon/hpre/hpre_crypto.c
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@ -210,7 +210,7 @@ static int hpre_prepare_dma_buf(struct hpre_asym_request *hpre_req,
if (unlikely(shift < 0))
return -EINVAL;
ptr = dma_alloc_coherent(dev, ctx->key_sz, tmp, GFP_KERNEL);
ptr = dma_alloc_coherent(dev, ctx->key_sz, tmp, GFP_ATOMIC);
if (unlikely(!ptr))
return -ENOMEM;