From 01838bd4e8a208ef0d76181e1b5875421b7803a2 Mon Sep 17 00:00:00 2001
From: Reiner Herrmann <reiner@reiner-h.de>
Date: Mon, 25 Mar 2019 00:17:11 +0100
Subject: Simplify blksize2 calculation

---
 src/lib.rs | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

(limited to 'src')

diff --git a/src/lib.rs b/src/lib.rs
index 61e7059..d2374ab 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -93,17 +93,8 @@ fn octet_to_netascii(buf: &[u8]) -> Vec<u8> {
     out
 }
 
-fn blksize2(mut size: usize) -> usize {
-    if size == 0 {
-        return 0;
-    }
-
-    let mut msb = 0;
-    while size > 0 {
-        size >>= 1;
-        msb += 1;
-    }
-    1 << (msb - 1)
+fn blksize2(size: usize) -> usize {
+    (size + 1).next_power_of_two() >> 1
 }
 
 
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