From: David S. Miller Date: Wed, 19 Dec 2012 23:22:03 +0000 (-0800) Subject: sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in AES code. X-Git-Tag: v3.7.2~44 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fe4ddcf94392f83f27b690f32cdd162ccd0f7eb3;p=karo-tx-linux.git 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c index d26e75126fb5..503e6d96ad4e 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)];