commit 98dfa9343f37bdd4112966292751e3a93aaf2e56
author Zhengchao Shao <shaozhengchao@huawei.com> Tue Jul 19 12:23:23 2022 +0800
committer Herbert Xu <herbert@gondor.apana.org.au> Fri Jul 29 18:28:54 2022 +0800
tree 96104eaeb6f4fe38fad459bf9b081d7f917c84c2
parent 9d2bb9a74b2877f100637d6ab5685bcd33c69d44

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

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: c8b4b477079d ("crypto: hisilicon - add HiSilicon HPRE accelerator")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/hisilicon/hpre/hpre_crypto.c

diff --git a/drivers/crypto/hisilicon/hpre/hpre_crypto.c b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
index 97d54c1..3ba6f15 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_crypto.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
@@ -252,7 +252,7 @@
 	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;