*: add FAST_FUNC to function ptrs where it makes sense

function                                             old     new   delta
evalcommand                                         1195    1209     +14
testcmd                                                -      10     +10
printfcmd                                              -      10     +10
echocmd                                                -      10     +10
func_exec                                            270     276      +6
echo_dg                                              104     109      +5
store_nlmsg                                           85      89      +4
pseudo_exec_argv                                     195     198      +3
dotcmd                                               287     290      +3
machtime_stream                                       29      31      +2
discard_stream                                        24      26      +2
argstr                                              1299    1301      +2
killcmd                                              108     109      +1
evalfor                                              226     227      +1
daytime_stream                                        43      44      +1
run_list                                            2544    2543      -1
lookupvar                                             62      61      -1
ipaddr_modify                                       1310    1309      -1
...
parse_stream                                        2254    2245      -9
evalpipe                                             356     347      -9
collect_if                                           210     197     -13
read_opt                                             869     851     -18
handle_dollar                                        681     658     -23
print_addrinfo                                      1342    1303     -39
iterate_on_dir                                       156      59     -97
print_route                                         1709    1609    -100
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 12/130 up/down: 74/-767)       Total: -693 bytes
   text    data     bss     dec     hex filename
 841748     467    7872  850087   cf8a7 busybox_old
 841061     467    7872  849400   cf5f8 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

10 files changed, 83 insertions, 85 deletions

diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index 604a216..6d60810 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -42,8 +42,8 @@ typedef int execfn(char *command);
 
 struct method_t {
 	const char *name;
-	int (*up)(struct interface_defn_t *ifd, execfn *e);
-	int (*down)(struct interface_defn_t *ifd, execfn *e);
+	int (*up)(struct interface_defn_t *ifd, execfn *e) FAST_FUNC;
+	int (*down)(struct interface_defn_t *ifd, execfn *e) FAST_FUNC;
 };
 
 struct address_family_t {
@@ -325,7 +325,7 @@ static int execute(const char *command, struct interface_defn_t *ifd, execfn *ex
 #endif
 
 #if ENABLE_FEATURE_IFUPDOWN_IPV6
-static int loopback_up6(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC loopback_up6(struct interface_defn_t *ifd, execfn *exec)
 {
 #if ENABLE_FEATURE_IFUPDOWN_IP
 	int result;
@@ -337,7 +337,7 @@ static int loopback_up6(struct interface_defn_t *ifd, execfn *exec)
 #endif
 }
 
-static int loopback_down6(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC loopback_down6(struct interface_defn_t *ifd, execfn *exec)
 {
 #if ENABLE_FEATURE_IFUPDOWN_IP
 	return execute("ip link set %iface% down", ifd, exec);
@@ -346,7 +346,7 @@ static int loopback_down6(struct interface_defn_t *ifd, execfn *exec)
 #endif
 }
 
-static int static_up6(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC static_up6(struct interface_defn_t *ifd, execfn *exec)
 {
 	int result;
 #if ENABLE_FEATURE_IFUPDOWN_IP
@@ -362,7 +362,7 @@ static int static_up6(struct interface_defn_t *ifd, execfn *exec)
 	return ((result == 3) ? 3 : 0);
 }
 
-static int static_down6(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC static_down6(struct interface_defn_t *ifd, execfn *exec)
 {
 #if ENABLE_FEATURE_IFUPDOWN_IP
 	return execute("ip link set %iface% down", ifd, exec);
@@ -372,7 +372,7 @@ static int static_down6(struct interface_defn_t *ifd, execfn *exec)
 }
 
 #if ENABLE_FEATURE_IFUPDOWN_IP
-static int v4tunnel_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC v4tunnel_up(struct interface_defn_t *ifd, execfn *exec)
 {
 	int result;
 	result = execute("ip tunnel add %iface% mode sit remote "
@@ -383,7 +383,7 @@ static int v4tunnel_up(struct interface_defn_t *ifd, execfn *exec)
 	return ((result == 4) ? 4 : 0);
 }
 
-static int v4tunnel_down(struct interface_defn_t * ifd, execfn * exec)
+static int FAST_FUNC v4tunnel_down(struct interface_defn_t * ifd, execfn * exec)
 {
 	return execute("ip tunnel del %iface%", ifd, exec);
 }
@@ -405,7 +405,7 @@ static const struct address_family_t addr_inet6 = {
 #endif /* FEATURE_IFUPDOWN_IPV6 */
 
 #if ENABLE_FEATURE_IFUPDOWN_IPV4
-static int loopback_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC loopback_up(struct interface_defn_t *ifd, execfn *exec)
 {
 #if ENABLE_FEATURE_IFUPDOWN_IP
 	int result;
@@ -417,7 +417,7 @@ static int loopback_up(struct interface_defn_t *ifd, execfn *exec)
 #endif
 }
 
-static int loopback_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC loopback_down(struct interface_defn_t *ifd, execfn *exec)
 {
 #if ENABLE_FEATURE_IFUPDOWN_IP
 	int result;
@@ -429,7 +429,7 @@ static int loopback_down(struct interface_defn_t *ifd, execfn *exec)
 #endif
 }
 
-static int static_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC static_up(struct interface_defn_t *ifd, execfn *exec)
 {
 	int result;
 #if ENABLE_FEATURE_IFUPDOWN_IP
@@ -451,7 +451,7 @@ static int static_up(struct interface_defn_t *ifd, execfn *exec)
 #endif
 }
 
-static int static_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC static_down(struct interface_defn_t *ifd, execfn *exec)
 {
 	int result;
 #if ENABLE_FEATURE_IFUPDOWN_IP
@@ -468,8 +468,7 @@ static int static_down(struct interface_defn_t *ifd, execfn *exec)
 }
 
 #if ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCP
-struct dhcp_client_t
-{
+struct dhcp_client_t {
 	const char *name;
 	const char *startcmd;
 	const char *stopcmd;
@@ -497,7 +496,7 @@ static const struct dhcp_client_t ext_dhcp_clients[] = {
 #endif /* ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCPC */
 
 #if ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCP
-static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC dhcp_up(struct interface_defn_t *ifd, execfn *exec)
 {
 	unsigned i;
 #if ENABLE_FEATURE_IFUPDOWN_IP
@@ -517,7 +516,7 @@ static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
 	return 0;
 }
 #elif ENABLE_APP_UDHCPC
-static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC dhcp_up(struct interface_defn_t *ifd, execfn *exec)
 {
 #if ENABLE_FEATURE_IFUPDOWN_IP
 	/* ip doesn't up iface when it configures it (unlike ifconfig) */
@@ -533,7 +532,7 @@ static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
 			ifd, exec);
 }
 #else
-static int dhcp_up(struct interface_defn_t *ifd UNUSED_PARAM,
+static int FAST_FUNC dhcp_up(struct interface_defn_t *ifd UNUSED_PARAM,
 		execfn *exec UNUSED_PARAM)
 {
 	return 0; /* no dhcp support */
@@ -541,7 +540,7 @@ static int dhcp_up(struct interface_defn_t *ifd UNUSED_PARAM,
 #endif
 
 #if ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCP
-static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd, execfn *exec)
 {
 	int result = 0;
 	unsigned i;
@@ -564,7 +563,7 @@ static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
 	return ((result == 3) ? 3 : 0);
 }
 #elif ENABLE_APP_UDHCPC
-static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd, execfn *exec)
 {
 	int result;
 	result = execute("kill "
@@ -579,42 +578,42 @@ static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
 	return ((result == 3) ? 3 : 0);
 }
 #else
-static int dhcp_down(struct interface_defn_t *ifd UNUSED_PARAM,
+static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd UNUSED_PARAM,
 		execfn *exec UNUSED_PARAM)
 {
 	return 0; /* no dhcp support */
 }
 #endif
 
-static int manual_up_down(struct interface_defn_t *ifd UNUSED_PARAM, execfn *exec UNUSED_PARAM)
+static int FAST_FUNC manual_up_down(struct interface_defn_t *ifd UNUSED_PARAM, execfn *exec UNUSED_PARAM)
 {
 	return 1;
 }
 
-static int bootp_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC bootp_up(struct interface_defn_t *ifd, execfn *exec)
 {
 	return execute("bootpc[[ --bootfile %bootfile%]] --dev %iface%"
 			"[[ --server %server%]][[ --hwaddr %hwaddr%]]"
 			" --returniffail --serverbcast", ifd, exec);
 }
 
-static int ppp_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC ppp_up(struct interface_defn_t *ifd, execfn *exec)
 {
 	return execute("pon[[ %provider%]]", ifd, exec);
 }
 
-static int ppp_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC ppp_down(struct interface_defn_t *ifd, execfn *exec)
 {
 	return execute("poff[[ %provider%]]", ifd, exec);
 }
 
-static int wvdial_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC wvdial_up(struct interface_defn_t *ifd, execfn *exec)
 {
 	return execute("start-stop-daemon --start -x wvdial "
 		"-p /var/run/wvdial.%iface% -b -m --[[ %provider%]]", ifd, exec);
 }
 
-static int wvdial_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC wvdial_down(struct interface_defn_t *ifd, execfn *exec)
 {
 	return execute("start-stop-daemon --stop -x wvdial "
 			"-p /var/run/wvdial.%iface% -s 2", ifd, exec);
diff --git a/networking/inetd.c b/networking/inetd.c
index 751010b..031edc3 100644
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -239,36 +239,36 @@ typedef struct servtab_t {
 #ifdef INETD_BUILTINS_ENABLED
 /* Echo received data */
 #if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_ECHO
-static void echo_stream(int, servtab_t *);
-static void echo_dg(int, servtab_t *);
+static void FAST_FUNC echo_stream(int, servtab_t *);
+static void FAST_FUNC echo_dg(int, servtab_t *);
 #endif
 /* Internet /dev/null */
 #if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_DISCARD
-static void discard_stream(int, servtab_t *);
-static void discard_dg(int, servtab_t *);
+static void FAST_FUNC discard_stream(int, servtab_t *);
+static void FAST_FUNC discard_dg(int, servtab_t *);
 #endif
 /* Return 32 bit time since 1900 */
 #if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_TIME
-static void machtime_stream(int, servtab_t *);
-static void machtime_dg(int, servtab_t *);
+static void FAST_FUNC machtime_stream(int, servtab_t *);
+static void FAST_FUNC machtime_dg(int, servtab_t *);
 #endif
 /* Return human-readable time */
 #if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_DAYTIME
-static void daytime_stream(int, servtab_t *);
-static void daytime_dg(int, servtab_t *);
+static void FAST_FUNC daytime_stream(int, servtab_t *);
+static void FAST_FUNC daytime_dg(int, servtab_t *);
 #endif
 /* Familiar character generator */
 #if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_CHARGEN
-static void chargen_stream(int, servtab_t *);
-static void chargen_dg(int, servtab_t *);
+static void FAST_FUNC chargen_stream(int, servtab_t *);
+static void FAST_FUNC chargen_dg(int, servtab_t *);
 #endif
 
 struct builtin {
 	/* NB: not necessarily NUL terminated */
 	char bi_service7[7];      /* internally provided service name */
 	uint8_t bi_fork;          /* 1 if stream fn should run in child */
-	void (*bi_stream_fn)(int, servtab_t *);
-	void (*bi_dgram_fn)(int, servtab_t *);
+	void (*bi_stream_fn)(int, servtab_t *) FAST_FUNC;
+	void (*bi_dgram_fn)(int, servtab_t *) FAST_FUNC;
 };
 
 static const struct builtin builtins[] = {
@@ -1386,7 +1386,7 @@ static const char *const cat_args[] = { "cat", NULL };
 #if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_ECHO
 /* Echo service -- echo data back. */
 /* ARGSUSED */
-static void echo_stream(int s, servtab_t *sep UNUSED_PARAM)
+static void FAST_FUNC echo_stream(int s, servtab_t *sep UNUSED_PARAM)
 {
 #if BB_MMU
 	while (1) {
@@ -1407,7 +1407,7 @@ static void echo_stream(int s, servtab_t *sep UNUSED_PARAM)
 	/* on failure we return to main, which does exit(EXIT_FAILURE) */
 #endif
 }
-static void echo_dg(int s, servtab_t *sep)
+static void FAST_FUNC echo_dg(int s, servtab_t *sep)
 {
 	enum { BUFSIZE = 12*1024 }; /* for jumbo sized packets! :) */
 	char *buf = xmalloc(BUFSIZE); /* too big for stack */
@@ -1427,7 +1427,7 @@ static void echo_dg(int s, servtab_t *sep)
 #if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_DISCARD
 /* Discard service -- ignore data. */
 /* ARGSUSED */
-static void discard_stream(int s, servtab_t *sep UNUSED_PARAM)
+static void FAST_FUNC discard_stream(int s, servtab_t *sep UNUSED_PARAM)
 {
 #if BB_MMU
 	while (safe_read(s, line, LINE_SIZE) > 0)
@@ -1446,7 +1446,7 @@ static void discard_stream(int s, servtab_t *sep UNUSED_PARAM)
 #endif
 }
 /* ARGSUSED */
-static void discard_dg(int s, servtab_t *sep UNUSED_PARAM)
+static void FAST_FUNC discard_dg(int s, servtab_t *sep UNUSED_PARAM)
 {
 	/* dgram builtins are non-forking - DONT BLOCK! */
 	recv(s, line, LINE_SIZE, MSG_DONTWAIT);
@@ -1467,7 +1467,7 @@ static void init_ring(void)
 }
 /* Character generator. MMU arches only. */
 /* ARGSUSED */
-static void chargen_stream(int s, servtab_t *sep UNUSED_PARAM)
+static void FAST_FUNC chargen_stream(int s, servtab_t *sep UNUSED_PARAM)
 {
 	char *rs;
 	int len;
@@ -1495,7 +1495,7 @@ static void chargen_stream(int s, servtab_t *sep UNUSED_PARAM)
 	}
 }
 /* ARGSUSED */
-static void chargen_dg(int s, servtab_t *sep)
+static void FAST_FUNC chargen_dg(int s, servtab_t *sep)
 {
 	int len;
 	char text[LINESIZ + 2];
@@ -1544,14 +1544,14 @@ static uint32_t machtime(void)
 	return htonl((uint32_t)(tv.tv_sec + 2208988800));
 }
 /* ARGSUSED */
-static void machtime_stream(int s, servtab_t *sep UNUSED_PARAM)
+static void FAST_FUNC machtime_stream(int s, servtab_t *sep UNUSED_PARAM)
 {
 	uint32_t result;
 
 	result = machtime();
 	full_write(s, &result, sizeof(result));
 }
-static void machtime_dg(int s, servtab_t *sep)
+static void FAST_FUNC machtime_dg(int s, servtab_t *sep)
 {
 	uint32_t result;
 	len_and_sockaddr *lsa = alloca(LSA_LEN_SIZE + sep->se_lsa->len);
@@ -1569,14 +1569,14 @@ static void machtime_dg(int s, servtab_t *sep)
 #if ENABLE_FEATURE_INETD_SUPPORT_BUILTIN_DAYTIME
 /* Return human-readable time of day */
 /* ARGSUSED */
-static void daytime_stream(int s, servtab_t *sep UNUSED_PARAM)
+static void FAST_FUNC daytime_stream(int s, servtab_t *sep UNUSED_PARAM)
 {
 	time_t t;
 
 	t = time(NULL);
 	fdprintf(s, "%.24s\r\n", ctime(&t));
 }
-static void daytime_dg(int s, servtab_t *sep)
+static void FAST_FUNC daytime_dg(int s, servtab_t *sep)
 {
 	time_t t;
 	len_and_sockaddr *lsa = alloca(LSA_LEN_SIZE + sep->se_lsa->len);
diff --git a/networking/libiproute/ipaddress.c b/networking/libiproute/ipaddress.c
index 644874f..d042af0 100644
--- a/networking/libiproute/ipaddress.c
+++ b/networking/libiproute/ipaddress.c
@@ -196,7 +196,7 @@ static int flush_update(void)
 	return 0;
 }
 
-static int print_addrinfo(const struct sockaddr_nl *who UNUSED_PARAM,
+static int FAST_FUNC print_addrinfo(const struct sockaddr_nl *who UNUSED_PARAM,
 		struct nlmsghdr *n, void *arg UNUSED_PARAM)
 {
 	struct ifaddrmsg *ifa = NLMSG_DATA(n);
@@ -349,8 +349,7 @@ static int print_addrinfo(const struct sockaddr_nl *who UNUSED_PARAM,
 }
 
 
-struct nlmsg_list
-{
+struct nlmsg_list {
 	struct nlmsg_list *next;
 	struct nlmsghdr	  h;
 };
@@ -377,7 +376,7 @@ static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo)
 }
 
 
-static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
+static int FAST_FUNC store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
 {
 	struct nlmsg_list **linfo = (struct nlmsg_list**)arg;
 	struct nlmsg_list *h;
diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index 3785952..ac7eec5 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -78,7 +78,7 @@ static unsigned get_hz(void)
 	return hz_internal;
 }
 
-static int print_route(const struct sockaddr_nl *who UNUSED_PARAM,
+static int FAST_FUNC print_route(const struct sockaddr_nl *who UNUSED_PARAM,
 		struct nlmsghdr *n, void *arg UNUSED_PARAM)
 {
 	struct rtmsg *r = NLMSG_DATA(n);
diff --git a/networking/libiproute/iprule.c b/networking/libiproute/iprule.c
index 6c90c6d..bec530d 100644
--- a/networking/libiproute/iprule.c
+++ b/networking/libiproute/iprule.c
@@ -40,7 +40,7 @@ static void usage(void)
 }
 */
 
-static int print_rule(const struct sockaddr_nl *who UNUSED_PARAM,
+static int FAST_FUNC print_rule(const struct sockaddr_nl *who UNUSED_PARAM,
 					struct nlmsghdr *n, void *arg UNUSED_PARAM)
 {
 	struct rtmsg *r = NLMSG_DATA(n);
diff --git a/networking/libiproute/libnetlink.c b/networking/libiproute/libnetlink.c
index 7ad2de9..b4cc8df 100644
--- a/networking/libiproute/libnetlink.c
+++ b/networking/libiproute/libnetlink.c
@@ -104,7 +104,7 @@ int FAST_FUNC rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, in
 }
 
 static int rtnl_dump_filter(struct rtnl_handle *rth,
-		int (*filter)(const struct sockaddr_nl *, struct nlmsghdr *n, void *),
+		int (*filter)(const struct sockaddr_nl *, struct nlmsghdr *n, void *) FAST_FUNC,
 		void *arg1/*,
 		int (*junk)(struct sockaddr_nl *, struct nlmsghdr *n, void *),
 		void *arg2*/)
@@ -196,7 +196,7 @@ static int rtnl_dump_filter(struct rtnl_handle *rth,
 }
 
 int FAST_FUNC xrtnl_dump_filter(struct rtnl_handle *rth,
-		int (*filter)(const struct sockaddr_nl *, struct nlmsghdr *, void *),
+		int (*filter)(const struct sockaddr_nl *, struct nlmsghdr *, void *) FAST_FUNC,
 		void *arg1)
 {
 	int ret = rtnl_dump_filter(rth, filter, arg1/*, NULL, NULL*/);
@@ -206,10 +206,10 @@ int FAST_FUNC xrtnl_dump_filter(struct rtnl_handle *rth,
 }
 
 int FAST_FUNC rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
-	      pid_t peer, unsigned groups,
-	      struct nlmsghdr *answer,
-	      int (*junk)(struct sockaddr_nl *, struct nlmsghdr *, void *),
-	      void *jarg)
+		pid_t peer, unsigned groups,
+		struct nlmsghdr *answer,
+		int (*junk)(struct sockaddr_nl *, struct nlmsghdr *, void *),
+		void *jarg)
 {
 /* bbox doesn't use parameters no. 3, 4, 6, 7, they are stubbed out */
 #define peer   0
diff --git a/networking/libiproute/libnetlink.h b/networking/libiproute/libnetlink.h
index 11a4a10..41ecfa6 100644
--- a/networking/libiproute/libnetlink.h
+++ b/networking/libiproute/libnetlink.h
@@ -23,16 +23,16 @@ extern void rtnl_close(struct rtnl_handle *rth) FAST_FUNC;
 extern int xrtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type) FAST_FUNC;
 extern int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int len) FAST_FUNC;
 extern int xrtnl_dump_filter(struct rtnl_handle *rth,
-			int (*filter)(const struct sockaddr_nl*, struct nlmsghdr *n, void*),
-			void *arg1) FAST_FUNC;
+		int (*filter)(const struct sockaddr_nl*, struct nlmsghdr *n, void*) FAST_FUNC,
+		void *arg1) FAST_FUNC;
 
 /* bbox doesn't use parameters no. 3, 4, 6, 7, stub them out */
 #define rtnl_talk(rtnl, n, peer, groups, answer, junk, jarg) \
 	rtnl_talk(rtnl, n, answer)
 extern int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer,
-			unsigned groups, struct nlmsghdr *answer,
-			int (*junk)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
-			void *jarg) FAST_FUNC;
+		unsigned groups, struct nlmsghdr *answer,
+		int (*junk)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
+		void *jarg) FAST_FUNC;
 
 extern int rtnl_send(struct rtnl_handle *rth, char *buf, int) FAST_FUNC;
 
diff --git a/networking/libiproute/ll_map.c b/networking/libiproute/ll_map.c
index 951496f..62528cc 100644
--- a/networking/libiproute/ll_map.c
+++ b/networking/libiproute/ll_map.c
@@ -39,7 +39,7 @@ static struct idxmap *find_by_index(int idx)
 	return NULL;
 }
 
-int ll_remember_index(const struct sockaddr_nl *who UNUSED_PARAM,
+int FAST_FUNC ll_remember_index(const struct sockaddr_nl *who UNUSED_PARAM,
 		struct nlmsghdr *n,
 		void *arg UNUSED_PARAM)
 {
@@ -86,7 +86,7 @@ int ll_remember_index(const struct sockaddr_nl *who UNUSED_PARAM,
 	return 0;
 }
 
-const char *ll_idx_n2a(int idx, char *buf)
+const char FAST_FUNC *ll_idx_n2a(int idx, char *buf)
 {
 	struct idxmap *im;
 
@@ -100,7 +100,7 @@ const char *ll_idx_n2a(int idx, char *buf)
 }
 
 
-const char *ll_index_to_name(int idx)
+const char FAST_FUNC *ll_index_to_name(int idx)
 {
 	static char nbuf[16];
 
@@ -121,7 +121,7 @@ int ll_index_to_type(int idx)
 }
 #endif
 
-unsigned ll_index_to_flags(int idx)
+unsigned FAST_FUNC ll_index_to_flags(int idx)
 {
 	struct idxmap *im;
 
@@ -133,7 +133,7 @@ unsigned ll_index_to_flags(int idx)
 	return 0;
 }
 
-int xll_name_to_index(const char *name)
+int FAST_FUNC xll_name_to_index(const char *name)
 {
 	int ret = 0;
 	int sock_fd;
@@ -192,7 +192,7 @@ int xll_name_to_index(const char *name)
 	return ret;
 }
 
-int ll_init_map(struct rtnl_handle *rth)
+int FAST_FUNC ll_init_map(struct rtnl_handle *rth)
 {
 	xrtnl_wilddump_request(rth, AF_UNSPEC, RTM_GETLINK);
 	xrtnl_dump_filter(rth, ll_remember_index, &idxmap);
diff --git a/networking/libiproute/ll_map.h b/networking/libiproute/ll_map.h
index b183cd6..c5d3834 100644
--- a/networking/libiproute/ll_map.h
+++ b/networking/libiproute/ll_map.h
@@ -4,13 +4,13 @@
 
 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
 
-int ll_remember_index(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg);
-int ll_init_map(struct rtnl_handle *rth);
-int xll_name_to_index(const char *name);
-const char *ll_index_to_name(int idx);
-const char *ll_idx_n2a(int idx, char *buf);
+int ll_remember_index(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) FAST_FUNC;
+int ll_init_map(struct rtnl_handle *rth) FAST_FUNC;
+int xll_name_to_index(const char *name) FAST_FUNC;
+const char *ll_index_to_name(int idx) FAST_FUNC;
+const char *ll_idx_n2a(int idx, char *buf) FAST_FUNC;
 /* int ll_index_to_type(int idx); */
-unsigned ll_index_to_flags(int idx);
+unsigned ll_index_to_flags(int idx) FAST_FUNC;
 
 POP_SAVED_FUNCTION_VISIBILITY
 
diff --git a/networking/udhcp/files.c b/networking/udhcp/files.c
index b138976..af77308 100644
--- a/networking/udhcp/files.c
+++ b/networking/udhcp/files.c
@@ -24,7 +24,7 @@ static inline uint64_t hton64(uint64_t v)
 
 
 /* on these functions, make sure your datatype matches */
-static int read_ip(const char *line, void *arg)
+static int FAST_FUNC read_ip(const char *line, void *arg)
 {
 	len_and_sockaddr *lsa;
 
@@ -37,13 +37,13 @@ static int read_ip(const char *line, void *arg)
 }
 
 
-static int read_mac(const char *line, void *arg)
+static int FAST_FUNC read_mac(const char *line, void *arg)
 {
 	return NULL == ether_aton_r(line, (struct ether_addr *)arg);
 }
 
 
-static int read_str(const char *line, void *arg)
+static int FAST_FUNC read_str(const char *line, void *arg)
 {
 	char **dest = arg;
 
@@ -53,14 +53,14 @@ static int read_str(const char *line, void *arg)
 }
 
 
-static int read_u32(const char *line, void *arg)
+static int FAST_FUNC read_u32(const char *line, void *arg)
 {
 	*(uint32_t*)arg = bb_strtou32(line, NULL, 10);
 	return errno == 0;
 }
 
 
-static int read_yn(const char *line, void *arg)
+static int FAST_FUNC read_yn(const char *line, void *arg)
 {
 	char *dest = arg;
 
@@ -156,7 +156,7 @@ static void attach_option(struct option_set **opt_list,
 
 
 /* read a dhcp option and add it to opt_list */
-static int read_opt(const char *const_line, void *arg)
+static int FAST_FUNC read_opt(const char *const_line, void *arg)
 {
 	struct option_set **opt_list = arg;
 	char *opt, *val, *endptr;
@@ -251,7 +251,7 @@ static int read_opt(const char *const_line, void *arg)
 	return retval;
 }
 
-static int read_staticlease(const char *const_line, void *arg)
+static int FAST_FUNC read_staticlease(const char *const_line, void *arg)
 {
 	char *line;
 	char *mac_string;
@@ -278,7 +278,7 @@ static int read_staticlease(const char *const_line, void *arg)
 
 struct config_keyword {
 	const char *keyword;
-	int (*handler)(const char *line, void *var);
+	int (*handler)(const char *line, void *var) FAST_FUNC;
 	void *var;
 	const char *def;
 };