From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 23 Jan 2023 10:08:56 +0000 (+0800)
Subject: Revert "crypto: rsa-pkcs1pad - Replace GFP_ATOMIC with GFP_KERNEL in pkcs1pad_encrypt... 
X-Git-Tag: v6.6.7~3330^2~90
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d52b0c780c1f8cdd0cef9c6e683ab568d04bb19d;p=platform%2Fkernel%2Flinux-starfive.git

Revert "crypto: rsa-pkcs1pad - Replace GFP_ATOMIC with GFP_KERNEL in pkcs1pad_encrypt_sign_complete"

This reverts commit 1ca2809897155f1adc43e4859b4a3582e235c09a.

While the akcipher API as a whole is designed to be called only
from thread context, its completion path is still called from
softirq context as usual.  Therefore we must not use GFP_KERNEL
on that path.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index 6ee5b8a..141f7e0 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -190,7 +190,7 @@ static int pkcs1pad_encrypt_sign_complete(struct akcipher_request *req, int err)
 	if (likely(!pad_len))
 		goto out;
 
-	out_buf = kzalloc(ctx->key_size, GFP_KERNEL);
+	out_buf = kzalloc(ctx->key_size, GFP_ATOMIC);
 	err = -ENOMEM;
 	if (!out_buf)
 		goto out;