[src/trunk]: src/sys/external/bsd/common/include/linux Add hweight64.

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

details:   https://anonhg.NetBSD.org/src/rev/0139c358196a
branches:  trunk
changeset: 365830:0139c358196a
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Aug 27 06:54:29 2018 +0000

description:
Add hweight64.

diffstat:

 sys/external/bsd/common/include/linux/bitops.h |  8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diffs (22 lines):

diff -r 058fb67b50d2 -r 0139c358196a sys/external/bsd/common/include/linux/bitops.h
--- a/sys/external/bsd/common/include/linux/bitops.h    Mon Aug 27 06:54:19 2018 +0000
+++ b/sys/external/bsd/common/include/linux/bitops.h    Mon Aug 27 06:54:29 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bitops.h,v 1.2 2018/08/27 06:17:17 riastradh Exp $     */
+/*     $NetBSD: bitops.h,v 1.3 2018/08/27 06:54:29 riastradh Exp $     */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -74,6 +74,12 @@
        return popcount32(n);
 }
 
+static inline unsigned int
+hweight64(uint64_t n)
+{
+       return popcount64(n);
+}
+
 /*
  * XXX Don't define BITS_PER_LONG as sizeof(unsigned long)*CHAR_BIT
  * because that won't work in preprocessor conditionals, where it often