include/util: enclose a arg of POWER_OF_TWO into parentheses
It is something should be done.
BRANCH=None
TEST=make buildall -j
@@ -53,7 +53,7 @@ extern "C" {
((type *)(((uint8_t *) pointer) - offsetof(type, member)))
/* True of x is a power of two */
-#define POWER_OF_TWO(x) (x && !(x & (x - 1)))
+#define POWER_OF_TWO(x) ((x) && !((x) & ((x) - 1)))
/*
* macros for integer division with various rounding variants
