1 files changed, 2 insertions, 0 deletions
diff --git a/lib/bitops.h b/lib/bitops.h
index 1b6dc68e..bebd830d 100644
--- a/lib/bitops.h
+++ b/lib/bitops.h
@@ -17,3 +17,5 @@
 
 u32 u32_mkmask(unsigned n);
 int u32_masklen(u32 x);
+
+u32 u32_log2(u32 v);