[CRYPTO] padlock: Convert padlock-sha to use crypto_hash

This patch converts padlock-sha to use crypto_hash for its fallback.
It also changes the fallback selection to use selection by type instead
of name.  This is done through the new CRYPTO_ALG_NEED_FALLBACK bit,
which is set if and only if an algorithm needs a fallback of the same
type.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index d4f9948b64b1..187c6ea91959 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -43,6 +43,12 @@
 #define CRYPTO_ALG_ASYNC                0x00000080
 
 /*
+ * Set this bit if and only if the algorithm requires another algorithm of
+ * the same type to handle corner cases.
+ */
+#define CRYPTO_ALG_NEED_FALLBACK        0x00000100
+
+/*
  * Transform masks and values (for crt_flags).
  */
 #define CRYPTO_TFM_MODE_MASK            0x000000ff