From 2cb2ba6df8e31d389fd4bbfa73f0e6227dccb056 Mon Sep 17 00:00:00 2001
From: Conrad Meyer <cem@FreeBSD.org>
Date: Tue, 27 Mar 2018 14:55:01 +0000
Subject: MFV: libb2: use native calls for secure memory clearance

Drop our local patch and restore full vanilla upstream code in
contrib/libb2.

No functional change intended.  explicit_bzero() should continue to be used.

Obtained from:	libb2 b4b241a34824b51956a7866606329a065d397525
Sponsored by:	Dell EMC Isilon
---
 sys/crypto/blake2/config.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sys/crypto')

diff --git a/sys/crypto/blake2/config.h b/sys/crypto/blake2/config.h
index 9ceba827f3d1..0471a1fedc20 100644
--- a/sys/crypto/blake2/config.h
+++ b/sys/crypto/blake2/config.h
@@ -17,3 +17,5 @@
 #else
 #define HAVE_ALIGNED_ACCESS_REQUIRED 1
 #endif
+
+#define HAVE_EXPLICIT_BZERO 1
-- 
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