From patchwork Wed Dec 19 23:45:56 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3/4] sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in AES code. From: David Miller X-Patchwork-Id: 207572 Message-Id: <20121219.154556.573390596077546719.davem@davemloft.net> To: sparclinux@vger.kernel.org Date: Wed, 19 Dec 2012 15:45:56 -0800 (PST) We use the FPU and therefore cannot sleep during the crypto loops. Signed-off-by: David S. Miller --- arch/sparc/crypto/aes_glue.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c index d26e751..503e6d9 100644 --- a/arch/sparc/crypto/aes_glue.c +++ b/arch/sparc/crypto/aes_glue.c @@ -222,6 +222,7 @@ static int ecb_encrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt(desc, &walk); + desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; ctx->ops->load_encrypt_keys(&ctx->key[0]); while ((nbytes = walk.nbytes)) { @@ -251,6 +252,7 @@ static int ecb_decrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt(desc, &walk); + desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; ctx->ops->load_decrypt_keys(&ctx->key[0]); key_end = &ctx->key[ctx->expanded_key_length / sizeof(u64)]; @@ -280,6 +282,7 @@ static int cbc_encrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt(desc, &walk); + desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; ctx->ops->load_encrypt_keys(&ctx->key[0]); while ((nbytes = walk.nbytes)) { @@ -309,6 +312,7 @@ static int cbc_decrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt(desc, &walk); + desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; ctx->ops->load_decrypt_keys(&ctx->key[0]); key_end = &ctx->key[ctx->expanded_key_length / sizeof(u64)];