summaryrefslogtreecommitdiff
path: root/drivers/crypto/vmx/aes_cbc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/crypto/vmx/aes_cbc.c')
-rw-r--r--drivers/crypto/vmx/aes_cbc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c
index 1a559b7dddb5..477284abdd11 100644
--- a/drivers/crypto/vmx/aes_cbc.c
+++ b/drivers/crypto/vmx/aes_cbc.c
@@ -79,11 +79,13 @@ static int p8_aes_cbc_setkey(struct crypto_tfm *tfm, const u8 *key,
int ret;
struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
+ preempt_disable();
pagefault_disable();
enable_kernel_altivec();
ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key);
pagefault_enable();
+ preempt_enable();
ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen);
return ret;
@@ -106,6 +108,7 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc,
if (in_interrupt()) {
ret = crypto_blkcipher_encrypt(&fallback_desc, dst, src, nbytes);
} else {
+ preempt_disable();
pagefault_disable();
enable_kernel_altivec();
@@ -119,6 +122,7 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc,
}
pagefault_enable();
+ preempt_enable();
}
return ret;
@@ -141,6 +145,7 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
if (in_interrupt()) {
ret = crypto_blkcipher_decrypt(&fallback_desc, dst, src, nbytes);
} else {
+ preempt_disable();
pagefault_disable();
enable_kernel_altivec();
@@ -154,6 +159,7 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
}
pagefault_enable();
+ preempt_enable();
}
return ret;