more of -Wall fixes from Cristian Ionescu-Idbohrn.
Some are fixing real bugs.

function                                             old     new   delta
syslogd_main                                         938     958     +20
get_signum                                           136     143      +7
obj_load                                             777     782      +5
recv_from_to                                         210     214      +4
get_next_block                                      1795    1799      +4
display_topmem_process_list                         1117    1121      +4
logread_main                                         484     487      +3
buffer_fill_and_print                                 73      76      +3
kill_main                                            687     689      +2
ll_remember_index                                    240     241      +1
do_stats                                             452     453      +1
if_readconf                                          166     165      -1
display_process_list                                1192    1191      -1
run_applet_and_exit                                  507     505      -2
print_signames                                        33      31      -2
parse_one_line                                      1092    1090      -2
find_out_spec                                         57      55      -2
add_ksymoops_symbols                                 421     419      -2
ash_main                                            1407    1402      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 11/8 up/down: 54/-17)            Total: 37 bytes

diff --git a/networking/inetd.c b/networking/inetd.c
index d71a115..3be9dcb 100644
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -750,7 +750,7 @@
 			if (*p == '-') {
 				p++;
 				n = bb_strtou(p, &p, 10);
-				if (n > INT_MAX || n < sep->se_rpcver_lo)
+				if (n > INT_MAX || (int)n < sep->se_rpcver_lo)
 					goto bad_ver_spec;
 				sep->se_rpcver_hi = n;
 			}
@@ -812,7 +812,7 @@
 	 && (sep->se_socktype == SOCK_STREAM
 	     || sep->se_socktype == SOCK_DGRAM)
 	) {
-		int i;
+		unsigned i;
 		for (i = 0; i < ARRAY_SIZE(builtins); i++)
 			if (strncmp(builtins[i].bi_service7, sep->se_service, 7) == 0)
 				goto found_bi;