Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: aes-ni - Remove CRYPTO_TFM_REQ_MAY_SLEEP from fpu template
  crypto: aes-ni - Do not sleep when using the FPU
  crypto: aes-ni - Fix cbc mode IV saving
  crypto: padlock-aes - work around Nano CPU errata in CBC mode
  crypto: padlock-aes - work around Nano CPU errata in ECB mode

3 files changed, 9 insertions, 4 deletions

diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index caba99601703..eb0566e83319 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -845,7 +845,7 @@ ENTRY(aesni_cbc_enc)
  */
 ENTRY(aesni_cbc_dec)
         cmp $16, LEN
-        jb .Lcbc_dec_ret
+        jb .Lcbc_dec_just_ret
         mov 480(KEYP), KLEN
         add $240, KEYP
         movups (IVP), IV
@@ -891,6 +891,7 @@ ENTRY(aesni_cbc_dec)
         add $16, OUTP
         cmp $16, LEN
         jge .Lcbc_dec_loop1
-        movups IV, (IVP)
 .Lcbc_dec_ret:
+        movups IV, (IVP)
+.Lcbc_dec_just_ret:
         ret
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 4e663398f77f..c580c5ec1cad 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -198,6 +198,7 @@ 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;
 
         kernel_fpu_begin();
         while ((nbytes = walk.nbytes)) {
@@ -221,6 +222,7 @@ 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;
 
         kernel_fpu_begin();
         while ((nbytes = walk.nbytes)) {
@@ -266,6 +268,7 @@ 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;
 
         kernel_fpu_begin();
         while ((nbytes = walk.nbytes)) {
@@ -289,6 +292,7 @@ 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;
 
         kernel_fpu_begin();
         while ((nbytes = walk.nbytes)) {
diff --git a/arch/x86/crypto/fpu.c b/arch/x86/crypto/fpu.c
index 5f9781a3815f..daef6cd2b45d 100644
--- a/arch/x86/crypto/fpu.c
+++ b/arch/x86/crypto/fpu.c
@@ -48,7 +48,7 @@ static int crypto_fpu_encrypt(struct blkcipher_desc *desc_in,
         struct blkcipher_desc desc = {
                 .tfm = child,
                 .info = desc_in->info,
-                .flags = desc_in->flags,
+                .flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
         };
 
         kernel_fpu_begin();
@@ -67,7 +67,7 @@ static int crypto_fpu_decrypt(struct blkcipher_desc *desc_in,
         struct blkcipher_desc desc = {
                 .tfm = child,
                 .info = desc_in->info,
-                .flags = desc_in->flags,
+                .flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
         };
 
         kernel_fpu_begin();