diff mbox

[v2,11/25] crypto: ansi_cprng - Eliminate unused PRNG_FIXED_SIZE flag

Message ID 3b88d963e7feb8e2ea0a0cc6588b90b422f1896e.1417951990.git.linux@horizon.com (mailing list archive)
State RFC
Delegated to: Herbert Xu
Headers show

Commit Message

George Spelvin Dec. 7, 2014, 12:26 p.m. UTC 
There's no way to set it, so it's dead code.

Signed-off-by: George Spelvin <linux@horizon.com>
---
 crypto/ansi_cprng.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)
diff mbox

Patch

diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c
index 74ec151e..f6a1e987 100644
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -30,8 +30,7 @@ 
  * Flags for the prng_context flags field
  */
 
-#define PRNG_FIXED_SIZE 0x1
-#define PRNG_NEED_RESET 0x2
+#define PRNG_NEED_RESET 0x1
 
 /*
  * Note: DT is our counter value
@@ -166,17 +165,6 @@  static int get_prng_bytes(u8 *buf, unsigned int nbytes,
 	if (ctx->flags & PRNG_NEED_RESET)
 		goto done;
 
-	/*
-	 * If the FIXED_SIZE flag is on, only return whole blocks of
-	 * pseudo random data
-	 */
-	err = -EINVAL;
-	if (ctx->flags & PRNG_FIXED_SIZE) {
-		if (nbytes < DEFAULT_BLK_SZ)
-			goto done;
-		byte_count = DEFAULT_BLK_SZ;
-	}
-
 	err = byte_count;
 
 	dbgprint(KERN_CRIT "getting %d random bytes for context %p\n",