Add comment to round_to_power_of_2()

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/src/common/dynamic-buffer.c b/src/common/dynamic-buffer.c
index 9ed16514fe64fa84dc735f15de862ca662a04fef..05d3022af19d0e4e8ef9d0527a6069394131eb6b 100644 (file)
--- a/src/common/dynamic-buffer.c
+++ b/src/common/dynamic-buffer.c
@@ -20,6 +20,10 @@
 #include <common/utils.h>
 #include <assert.h>
 
+/*
+ * Round to (upper) power of two, val is returned if it already is a power of
+ * two.
+ */
 static
 size_t round_to_power_of_2(size_t val)
 {