From 68411521cc6055edc6274e03ab3210a5893533ba Mon Sep 17 00:00:00 2001
From: Herbert Xu
Date: Sat, 7 Sep 2013 12:56:26 +1000
Subject: Reinstate "crypto: crct10dif - Wrap crc_t10dif function all to use
 crypto transform framework"

This patch reinstates commits
	67822649d7305caf3dd50ed46c27b99c94eff996
	39761214eefc6b070f29402aa1165f24d789b3f7
	0b95a7f85718adcbba36407ef88bba0a7379ed03
	31d939625a9a20b1badd2d4e6bf6fd39fa523405
	2d31e518a42828df7877bca23a958627d60408bc

Now that module softdeps are in the kernel we can use that to resolve
the boot issue which cause the revert.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Kconfig | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'crypto/Kconfig')

diff --git a/crypto/Kconfig b/crypto/Kconfig
index aca01164f002..69ce573f1224 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -376,6 +376,25 @@ config CRYPTO_CRC32_PCLMUL
 	  which will enable any routine to use the CRC-32-IEEE 802.3 checksum
 	  and gain better performance as compared with the table implementation.
 
+config CRYPTO_CRCT10DIF
+	tristate "CRCT10DIF algorithm"
+	select CRYPTO_HASH
+	help
+	  CRC T10 Data Integrity Field computation is being cast as
+	  a crypto transform.  This allows for faster crc t10 diff
+	  transforms to be used if they are available.
+
+config CRYPTO_CRCT10DIF_PCLMUL
+	tristate "CRCT10DIF PCLMULQDQ hardware acceleration"
+	depends on X86 && 64BIT && CRC_T10DIF
+	select CRYPTO_HASH
+	help
+	  For x86_64 processors with SSE4.2 and PCLMULQDQ supported,
+	  CRC T10 DIF PCLMULQDQ computation can be hardware
+	  accelerated PCLMULQDQ instruction. This option will create
+	  'crct10dif-plcmul' module, which is faster when computing the
+	  crct10dif checksum as compared with the generic table implementation.
+
 config CRYPTO_GHASH
 	tristate "GHASH digest algorithm"
 	select CRYPTO_GF128MUL
-- 
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