Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 4.10:

  API:
   - add skcipher walk interface
   - add asynchronous compression (acomp) interface
   - fix algif_aed AIO handling of zero buffer

  Algorithms:
   - fix unaligned access in poly1305
   - fix DRBG output to large buffers

  Drivers:
   - add support for iMX6UL to caam
   - fix givenc descriptors (used by IPsec) in caam
   - accelerated SHA256/SHA512 for ARM64 from OpenSSL
   - add SSE CRCT10DIF and CRC32 to ARM/ARM64
   - add AEAD support to Chelsio chcr
   - add Armada 8K support to omap-rng"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (148 commits)
  crypto: testmgr - fix overlap in chunked tests again
  crypto: arm/crc32 - accelerated support based on x86 SSE implementation
  crypto: arm64/crc32 - accelerated support based on x86 SSE implementation
  crypto: arm/crct10dif - port x86 SSE implementation to ARM
  crypto: arm64/crct10dif - port x86 SSE implementation to arm64
  crypto: testmgr - add/enhance test cases for CRC-T10DIF
  crypto: testmgr - avoid overlap in chunked tests
  crypto: chcr - checking for IS_ERR() instead of NULL
  crypto: caam - check caam_emi_slow instead of re-lookup platform
  crypto: algif_aead - fix AIO handling of zero buffer
  crypto: aes-ce - Make aes_simd_algs static
  crypto: algif_skcipher - set error code when kcalloc fails
  crypto: caam - make aamalg_desc a proper module
  crypto: caam - pass key buffers with typesafe pointers
  crypto: arm64/aes-ce-ccm - Fix AEAD decryption length
  MAINTAINERS: add crypto headers to crypto entry
  crypt: doc - remove misleading mention of async API
  crypto: doc - fix header file name
  crypto: api - fix comment typo
  crypto: skcipher - Add separate walker for AEAD decryption
  ..

1 files changed, 38 insertions, 1 deletions

diff --git a/arch/x86/include/asm/crypto/glue_helper.h b/arch/x86/include/asm/crypto/glue_helper.h
index 03bb1065c335..29e53ea7d764 100644
--- a/arch/x86/include/asm/crypto/glue_helper.h
+++ b/arch/x86/include/asm/crypto/glue_helper.h
@@ -5,8 +5,8 @@
 #ifndef _CRYPTO_GLUE_HELPER_H
 #define _CRYPTO_GLUE_HELPER_H
 
+#include <crypto/internal/skcipher.h>
 #include <linux/kernel.h>
-#include <linux/crypto.h>
 #include <asm/fpu/api.h>
 #include <crypto/b128ops.h>
 
@@ -69,6 +69,31 @@ static inline bool glue_fpu_begin(unsigned int bsize, int fpu_blocks_limit,
 	return true;
 }
 
+static inline bool glue_skwalk_fpu_begin(unsigned int bsize,
+					 int fpu_blocks_limit,
+					 struct skcipher_walk *walk,
+					 bool fpu_enabled, unsigned int nbytes)
+{
+	if (likely(fpu_blocks_limit < 0))
+		return false;
+
+	if (fpu_enabled)
+		return true;
+
+	/*
+	 * Vector-registers are only used when chunk to be processed is large
+	 * enough, so do not enable FPU until it is necessary.
+	 */
+	if (nbytes < bsize * (unsigned int)fpu_blocks_limit)
+		return false;
+
+	/* prevent sleeping if FPU is in use */
+	skcipher_walk_atomise(walk);
+
+	kernel_fpu_begin();
+	return true;
+}
+
 static inline void glue_fpu_end(bool fpu_enabled)
 {
 	if (fpu_enabled)
@@ -139,6 +164,18 @@ extern int glue_xts_crypt_128bit(const struct common_glue_ctx *gctx,
 				 common_glue_func_t tweak_fn, void *tweak_ctx,
 				 void *crypt_ctx);
 
+extern int glue_xts_crypt_128bit(const struct common_glue_ctx *gctx,
+				 struct blkcipher_desc *desc,
+				 struct scatterlist *dst,
+				 struct scatterlist *src, unsigned int nbytes,
+				 common_glue_func_t tweak_fn, void *tweak_ctx,
+				 void *crypt_ctx);
+
+extern int glue_xts_req_128bit(const struct common_glue_ctx *gctx,
+			       struct skcipher_request *req,
+			       common_glue_func_t tweak_fn, void *tweak_ctx,
+			       void *crypt_ctx);
+
 extern void glue_xts_crypt_128bit_one(void *ctx, u128 *dst, const u128 *src,
 				      le128 *iv, common_glue_func_t fn);