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

4 files changed, 8 insertions, 10 deletions

diff --git a/networking/libiproute/libnetlink.c b/networking/libiproute/libnetlink.c
index d29d035d0..47a055ac0 100644
--- a/networking/libiproute/libnetlink.c
+++ b/networking/libiproute/libnetlink.c
@@ -265,7 +265,7 @@ int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
 		if (msg.msg_namelen != sizeof(nladdr)) {
 			bb_error_msg_and_die("sender address length == %d", msg.msg_namelen);
 		}
-		for (h = (struct nlmsghdr*)buf; status >= sizeof(*h); ) {
+		for (h = (struct nlmsghdr*)buf; status >= (int)sizeof(*h); ) {
 //			int l_err;
 			int len = h->nlmsg_len;
 			int l = len - sizeof(*h);
@@ -293,7 +293,7 @@ int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
 
 			if (h->nlmsg_type == NLMSG_ERROR) {
 				struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
-				if (l < sizeof(struct nlmsgerr)) {
+				if (l < (int)sizeof(struct nlmsgerr)) {
 					bb_error_msg("ERROR truncated");
 				} else {
 					errno = - err->error;
@@ -336,7 +336,7 @@ int addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data)
 {
 	int len = RTA_LENGTH(4);
 	struct rtattr *rta;
-	if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen)
+	if ((int)(NLMSG_ALIGN(n->nlmsg_len) + len) > maxlen)
 		return -1;
 	rta = (struct rtattr*)(((char*)n) + NLMSG_ALIGN(n->nlmsg_len));
 	rta->rta_type = type;
@@ -351,7 +351,7 @@ int addattr_l(struct nlmsghdr *n, int maxlen, int type, void *data, int alen)
 	int len = RTA_LENGTH(alen);
 	struct rtattr *rta;
 
-	if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen)
+	if ((int)(NLMSG_ALIGN(n->nlmsg_len) + len) > maxlen)
 		return -1;
 	rta = (struct rtattr*)(((char*)n) + NLMSG_ALIGN(n->nlmsg_len));
 	rta->rta_type = type;
diff --git a/networking/libiproute/ll_map.c b/networking/libiproute/ll_map.c
index 3cfc9ccec..031b29a60 100644
--- a/networking/libiproute/ll_map.c
+++ b/networking/libiproute/ll_map.c
@@ -75,7 +75,7 @@ int ll_remember_index(struct sockaddr_nl *who ATTRIBUTE_UNUSED,
 	if (tb[IFLA_ADDRESS]) {
 		int alen;
 		im->alen = alen = RTA_PAYLOAD(tb[IFLA_ADDRESS]);
-		if (alen > sizeof(im->addr))
+		if (alen > (int)sizeof(im->addr))
 			alen = sizeof(im->addr);
 		memcpy(im->addr, RTA_DATA(tb[IFLA_ADDRESS]), alen);
 	} else {
diff --git a/networking/libiproute/ll_proto.c b/networking/libiproute/ll_proto.c
index 62262c9c2..8d9637408 100644
--- a/networking/libiproute/ll_proto.c
+++ b/networking/libiproute/ll_proto.c
@@ -98,10 +98,8 @@ __PF(ECONET,econet)
 
 const char *ll_proto_n2a(unsigned short id, char *buf, int len)
 {
-	int i;
-
+	unsigned i;
 	id = ntohs(id);
-
 	for (i = 0; i < ARRAY_SIZE(llproto_names); i++) {
 		 if (llproto_names[i].id == id)
 			return llproto_names[i].name;
@@ -112,7 +110,7 @@ const char *ll_proto_n2a(unsigned short id, char *buf, int len)
 
 int ll_proto_a2n(unsigned short *id, char *buf)
 {
-	int i;
+	unsigned i;
 	for (i = 0; i < ARRAY_SIZE(llproto_names); i++) {
 		 if (strcasecmp(llproto_names[i].name, buf) == 0) {
 			 *id = htons(llproto_names[i].id);
diff --git a/networking/libiproute/ll_types.c b/networking/libiproute/ll_types.c
index 60a78c715..50c9f208f 100644
--- a/networking/libiproute/ll_types.c
+++ b/networking/libiproute/ll_types.c
@@ -187,7 +187,7 @@ const char *ll_type_n2a(int type, char *buf, int len)
 #endif /* FEATURE_IP_RARE_PROTOCOLS */
 	};
 
-	int i;
+	unsigned i;
 	const char *aname = arphrd_name;
 	for (i = 0; i < ARRAY_SIZE(arphrd_type); i++) {
 		if (arphrd_type[i] == type)