staging: crypto: skein: allow building statically

These are the minimum changes required to get the code to build
statically in the kernel.  It's necessary to do this first so that we
can empirically determine that future cleanup patches aren't changing
the generated object code.

Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/staging/skein/Kconfig b/drivers/staging/skein/Kconfig
new file mode 100644
index 0000000..8f5a72a
--- /dev/null
+++ b/drivers/staging/skein/Kconfig
@@ -0,0 +1,32 @@
+config CRYPTO_SKEIN
+	bool "Skein digest algorithm"
+	depends on (X86 || UML_X86) && 64BIT
+	select CRYPTO_THREEFISH
+	select CRYPTO_HASH
+	help
+	  Skein secure hash algorithm is one of 5 finalists from the NIST SHA3
+	  competition.
+
+	  Skein is optimized for modern, 64bit processors and is highly
+	  customizable.  See:
+
+	  http://www.skein-hash.info/sites/default/files/skein1.3.pdf
+
+	  for more information.  This module depends on the threefish block
+	  cipher module.
+
+config CRYPTO_THREEFISH
+	bool "Threefish tweakable block cipher"
+	depends on (X86 || UML_X86) && 64BIT
+	select CRYPTO_ALGAPI
+	help
+	  Threefish cipher algorithm is the tweakable block cipher underneath
+	  the Skein family of secure hash algorithms.  Skein is one of 5
+	  finalists from the NIST SHA3 competition.
+
+	  Skein is optimized for modern, 64bit processors and is highly
+	  customizable.  See:
+
+	  http://www.skein-hash.info/sites/default/files/skein1.3.pdf
+
+	  for more information.