sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in AES code.

[ Upstream commit b35d282ef7345320b594d48d8d70caedfa962a01 ]

We use the FPU and therefore cannot sleep during the crypto
loops.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c
index d26e75126fb5940a93fd6d1c04c01f30647a6926..503e6d96ad4e49963727ef637f2d3fb985e25fb4 100644 (file)
--- 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)];