crypto: drbg - Export CTR DRBG DF functions

Export drbg_ctr_df() derivative function to new module df_sp80090.

Signed-off-by: Harsh Jain <h.jain@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 24 deletions

diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h
index af5ad51d3eef..2d42518cbdce 100644
--- a/include/crypto/drbg.h
+++ b/include/crypto/drbg.h
@@ -47,6 +47,7 @@
 #include <linux/module.h>
 #include <linux/crypto.h>
 #include <linux/slab.h>
+#include <crypto/internal/drbg.h>
 #include <crypto/internal/rng.h>
 #include <crypto/rng.h>
 #include <linux/fips.h>
@@ -54,30 +55,6 @@
 #include <linux/list.h>
 #include <linux/workqueue.h>
 
-/*
- * Concatenation Helper and string operation helper
- *
- * SP800-90A requires the concatenation of different data. To avoid copying
- * buffers around or allocate additional memory, the following data structure
- * is used to point to the original memory with its size. In addition, it
- * is used to build a linked list. The linked list defines the concatenation
- * of individual buffers. The order of memory block referenced in that
- * linked list determines the order of concatenation.
- */
-struct drbg_string {
-	const unsigned char *buf;
-	size_t len;
-	struct list_head list;
-};
-
-static inline void drbg_string_fill(struct drbg_string *string,
-				    const unsigned char *buf, size_t len)
-{
-	string->buf = buf;
-	string->len = len;
-	INIT_LIST_HEAD(&string->list);
-}
-
 struct drbg_state;
 typedef uint32_t drbg_flag_t;