add_random() died years ago. additionally, remove other mistruths or

repetitive statements.

1 files changed, 4 insertions, 20 deletions

diff --git a/share/man/man9/arc4random.9 b/share/man/man9/arc4random.9
index 5d49642ad9d..6dc6ab2cfc4 100644
--- a/share/man/man9/arc4random.9
+++ b/share/man/man9/arc4random.9
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: arc4random.9,v 1.14 2018/04/28 20:25:07 jmc Exp $
+.\"	$OpenBSD: arc4random.9,v 1.15 2020/05/29 03:19:43 deraadt Exp $
 .\"
 .\" Copyright (c) 1996,2000 Michael Shalayeff
 .\" All rights reserved.
@@ -23,7 +23,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: April 28 2018 $
+.Dd $Mdocdate: May 29 2020 $
 .Dt ARC4RANDOM 9
 .Os
 .Sh NAME
@@ -40,21 +40,9 @@
 .Fn arc4random_buf "void *buf" "size_t nbytes"
 .Ft u_int32_t
 .Fn arc4random_uniform "u_int32_t upper_bound"
-.In dev/rndvar.h
 .Ft void
 .Fn enqueue_randomness "int"
 .Sh DESCRIPTION
-The
-.Fn add_random
-functions below mix input into the system entropy pool, which is then used
-to create a key for the ChaCha stream cipher used in the
-.Fn arc4random
-series of functions.
-.Pp
-.Fn enqueue_randomness
-causes the supplied data argument to be added to the entropy pool,
-increasing the entropy counter by 32 bits.
-.Pp
 .Fn arc4random
 and
 .Fn arc4random_buf
@@ -69,12 +57,8 @@ In the worst case, this function may consume multiple iterations
 to ensure uniformity; see the source code to understand the problem
 and solution.
 .Pp
-.Fn arc4random ,
-.Fn arc4random_buf ,
-and
-.Fn arc4random_uniform
-may be called in nearly any kernel context.
+.Fn enqueue_randomness
+causes the supplied data argument to be added to the entropy pool.
 .Sh SEE ALSO
 .Xr arc4random 3 ,
-.Xr pchb 4 ,
 .Xr random 4