*: introduce and use FAST_FUNC: regparm on i386, otherwise no-on
text data bss dec hex filename
808035 611 6868 815514 c719a busybox_old
804472 611 6868 811951 c63af busybox_unstripped
diff --git a/libbb/human_readable.c b/libbb/human_readable.c
index d60ef61..dad26ed 100644
--- a/libbb/human_readable.c
+++ b/libbb/human_readable.c
@@ -28,7 +28,7 @@
#include "libbb.h"
-const char *make_human_readable_str(unsigned long long size,
+const char* FAST_FUNC make_human_readable_str(unsigned long long size,
unsigned long block_size, unsigned long display_unit)
{
/* The code will adjust for additional (appended) units */