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diff --git a/script/argv.c b/script/argv.c
index 69322779db07e8403ce49d5233d3b50c498e31f9..b69ee39c57be092dbbe358cf9879a0fc16bf98fe 100644 (file)
--- a/script/argv.c
+++ b/script/argv.c
@@ -20,6 +20,7 @@
 #include <grub/mm.h>
 #include <grub/script_sh.h>
 
+/* Return nearest power of two that is >= v.  */
 static unsigned
 round_up_exp (unsigned v)
 {