*: fix fallout from -Wunused-parameter

function                                             old     new   delta
bbunpack                                             358     366      +8
passwd_main                                         1070    1072      +2
handle_incoming_and_exit                            2651    2653      +2
getpty                                                88      86      -2
script_main                                          975     972      -3
inetd_main                                          2036    2033      -3
dname_enc                                            377     373      -4
make_new_session                                     474     462     -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/5 up/down: 12/-24)            Total: -12 bytes
   text    data     bss     dec     hex filename
 797429     658    7428  805515   c4a8b busybox_old
 797417     658    7428  805503   c4a7f busybox_unstripped

2 files changed, 4 insertions, 3 deletions

diff --git a/miscutils/bbconfig.c b/miscutils/bbconfig.c
index ee566788b..f3aef42e3 100644
--- a/miscutils/bbconfig.c
+++ b/miscutils/bbconfig.c
@@ -5,7 +5,7 @@
 #include "bbconfigopts.h"
 
 int bbconfig_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int bbconfig_main(int argc, char **argv)
+int bbconfig_main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
 {
         printf(bbconfig_config);
         return 0;
diff --git a/miscutils/chat.c b/miscutils/chat.c
index 50c5ad976..64d4ba4fd 100644
--- a/miscutils/chat.c
+++ b/miscutils/chat.c
@@ -233,7 +233,8 @@ int chat_main(int argc ATTRIBUTE_UNUSED, char **argv)
                         //-----------------------
                         // do expect
                         //-----------------------
-                        size_t expect_len, buf_len = 0;
+                        int expect_len;
+                        size_t buf_len = 0;
                         size_t max_len = max_abort_len;
 
                         struct pollfd pfd;
@@ -315,7 +316,7 @@ int chat_main(int argc ATTRIBUTE_UNUSED, char **argv)
                                 exitcode = ERR_OK;
 
                                 // expected reply received? -> goto next command
-                                delta = buf_len-expect_len;
+                                delta = buf_len - expect_len;
                                 if (delta >= 0 && !memcmp(buf+delta, expect, expect_len))
                                         goto expect_done;
 #undef buf