*: 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/safe_gethostname.c b/libbb/safe_gethostname.c
index 3b24edb..1f8b2a8 100644
--- a/libbb/safe_gethostname.c
+++ b/libbb/safe_gethostname.c
@@ -33,7 +33,7 @@
* This is an illegal first character for a hostname.
* The returned malloced string must be freed by the caller.
*/
-char *safe_gethostname(void)
+char* FAST_FUNC safe_gethostname(void)
{
struct utsname uts;