From fa3b3565f3ac5a468e3efebca00e10db5db3d6bb Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 15 Jun 2023 17:00:51 +0800
Subject: [PATCH] crypto: api - Add __crypto_alloc_tfmgfp
Use it straight away in crypto_clone_cipher(), as that is not meant to
sleep.
Fixes: 51d8d6d0f4be ("crypto: cipher - Add crypto_clone_cipher")
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
crypto/api.c | 13 ++++++++++---
crypto/cipher.c | 4 ++--
crypto/internal.h | 2 ++
3 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/crypto/api.c b/crypto/api.c
index a94bd0695719a..b9cc0c906efe0 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -386,15 +386,15 @@ void crypto_shoot_alg(struct crypto_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_shoot_alg);
-struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
- u32 mask)
+struct crypto_tfm *__crypto_alloc_tfmgfp(struct crypto_alg *alg, u32 type,
+ u32 mask, gfp_t gfp)
{
struct crypto_tfm *tfm = NULL;
unsigned int tfm_size;
int err = -ENOMEM;
tfm_size = sizeof(*tfm) + crypto_ctxsize(alg, type, mask);
- tfm = kzalloc(tfm_size, GFP_KERNEL);
+ tfm = kzalloc(tfm_size, gfp);
if (tfm == NULL)
goto out_err;
@@ -416,6 +416,13 @@ struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
out:
return tfm;
}
+EXPORT_SYMBOL_GPL(__crypto_alloc_tfmgfp);
+
+struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
+ u32 mask)
+{
+ return __crypto_alloc_tfmgfp(alg, type, mask, GFP_KERNEL);
+}
EXPORT_SYMBOL_GPL(__crypto_alloc_tfm);
/*
diff --git a/crypto/cipher.c b/crypto/cipher.c
index d39ef5f72ab86..a5a88038f0d6d 100644
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -101,8 +101,8 @@ struct crypto_cipher *crypto_clone_cipher(struct crypto_cipher *cipher)
if (alg->cra_init)
return ERR_PTR(-ENOSYS);
- ntfm = __crypto_alloc_tfm(alg, CRYPTO_ALG_TYPE_CIPHER,
- CRYPTO_ALG_TYPE_MASK);
+ ntfm = __crypto_alloc_tfmgfp(alg, CRYPTO_ALG_TYPE_CIPHER,
+ CRYPTO_ALG_TYPE_MASK, GFP_ATOMIC);
if (IS_ERR(ntfm))
return ERR_CAST(ntfm);
diff --git a/crypto/internal.h b/crypto/internal.h
index 8dd746b1130b6..e8c3aad71aa92 100644
--- a/crypto/internal.h
+++ b/crypto/internal.h
@@ -102,6 +102,8 @@ void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
struct crypto_alg *nalg);
void crypto_remove_final(struct list_head *list);
void crypto_shoot_alg(struct crypto_alg *alg);
+struct crypto_tfm *__crypto_alloc_tfmgfp(struct crypto_alg *alg, u32 type,
+ u32 mask, gfp_t gfp);
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
u32 mask);
void *crypto_create_tfm_node(struct crypto_alg *alg,
--
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