[src/trunk]: src/sys/external/bsd/drm2/include/linux get_random_int, get_rand...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5c1c4e4a8821
branches:  trunk
changeset: 1028000:5c1c4e4a8821
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Dec 19 01:34:23 2021 +0000

description:
get_random_int, get_random_long

diffstat:

 sys/external/bsd/drm2/include/linux/random.h |  57 ++++++++++++++++++++++++++++
 1 files changed, 57 insertions(+), 0 deletions(-)

diffs (61 lines):

diff -r 132552b7758d -r 5c1c4e4a8821 sys/external/bsd/drm2/include/linux/random.h
--- a/sys/external/bsd/drm2/include/linux/random.h      Sun Dec 19 01:34:15 2021 +0000
+++ b/sys/external/bsd/drm2/include/linux/random.h      Sun Dec 19 01:34:23 2021 +0000
@@ -0,0 +1,57 @@
+/*     $NetBSD: random.h,v 1.2 2021/12/19 01:34:23 riastradh Exp $     */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Taylor R. Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef        _LINUX_RANDOM_H_
+#define        _LINUX_RANDOM_H_
+
+#include <sys/cprng.h>
+
+static inline int
+get_random_int(void)
+{
+       int v;
+
+       cprng_strong(kern_cprng, &v, sizeof v, 0);
+
+       return v;
+}
+
+static inline long
+get_random_long(void)
+{
+       long v;
+
+       cprng_strong(kern_cprng, &v, sizeof v, 0);
+
+       return v;
+}
+
+#endif /* _LINUX_RANDOM_H_ */