datapath: Fix OVS build failure on older kernel

[openvswitch] / lib / util.h

diff --git a/lib/util.h b/lib/util.h
index 1649c59c2777937f5e74539832ad403ae5ae6162..5ae0775f1b36491e36b6d720a4ee73456000403a 100644 (file)
--- a/lib/util.h
+++ b/lib/util.h
@@ -194,7 +194,11 @@ char *base_name(const char *file_name);
 char *abs_file_name(const char *dir, const char *file_name);
 
 void ignore(bool x OVS_UNUSED);
-int log_2_floor(uint32_t n);
+int log_2_floor(uint32_t);
+int ctz(uint32_t);
+
+bool is_all_zeros(const uint8_t *, size_t);
+bool is_all_ones(const uint8_t *, size_t);
 
 #ifdef  __cplusplus
 }