[PATCH] s390: sha256 support

Add support for the hardware accelerated sha256 crypto algorithm.

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 85af57100923..9fdab742b10f 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -44,6 +44,7 @@ config CRYPTO_SHA1_S390
         tristate "SHA1 digest algorithm (s390)"
         depends on CRYPTO && ARCH_S390
         help
+          This is the s390 hardware accelerated implementation of the
           SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
 
 config CRYPTO_SHA256
@@ -55,6 +56,16 @@ config CRYPTO_SHA256
           This version of SHA implements a 256 bit hash with 128 bits of
           security against collision attacks.
 
+config CRYPTO_SHA256_S390
+        tristate "SHA256 digest algorithm (s390)"
+        depends on CRYPTO && ARCH_S390
+        help
+          This is the s390 hardware accelerated implementation of the
+          SHA256 secure hash standard (DFIPS 180-2).
+
+          This version of SHA implements a 256 bit hash with 128 bits of
+          security against collision attacks.
+
 config CRYPTO_SHA512
         tristate "SHA384 and SHA512 digest algorithms"
         depends on CRYPTO