treewide: Mark assorted functions static

This marks static a number of functions which are only used in their .c
file, have no prototypes in a .h and were never intended to be globally
exposed.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

log.c

@@ -56,7 +56,7 @@ bool		log_stderr = true;	/* Not daemonised, no shell spawned */
  *
  * Return: pointer to @now, or NULL if there was an error retrieving the time
  */
-const struct timespec *logtime(struct timespec *ts)
+static const struct timespec *logtime(struct timespec *ts)
 {
 	if (clock_gettime(CLOCK_MONOTONIC, ts))
 		return NULL;

netlink.c

@@ -355,7 +355,7 @@ unsigned int nl_get_ext_if(int s, sa_family_t af)
  *
  * Return: true if a gateway was found, false otherwise
  */
-bool nl_route_get_def_multipath(struct rtattr *rta, void *gw)
+static bool nl_route_get_def_multipath(struct rtattr *rta, void *gw)
 {
 	int nh_len = RTA_PAYLOAD(rta);
 	struct rtnexthop *rtnh;

passt.c

@@ -166,7 +166,7 @@ void proto_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s)
  *
  * #syscalls exit_group
  */
-void exit_handler(int signal)
+static void exit_handler(int signal)
 {
 	(void)signal;
 

tcp.c

@@ -2497,7 +2497,7 @@ static void tcp_ns_sock_init6(const struct ctx *c, in_port_t port)
  * @c:		Execution context
  * @port:	Port, host order
  */
-void tcp_ns_sock_init(const struct ctx *c, in_port_t port)
+static void tcp_ns_sock_init(const struct ctx *c, in_port_t port)
 {
 	ASSERT(!c->no_tcp);
 
@@ -3141,7 +3141,7 @@ static int tcp_flow_dump_rcvqueue(int s, struct tcp_tap_transfer_ext *t)
  *
  * Return: 0 on success, negative error code on failure
  */
-int tcp_flow_repair_opt(int s, const struct tcp_tap_transfer_ext *t)
+static int tcp_flow_repair_opt(int s, const struct tcp_tap_transfer_ext *t)
 {
 	const struct tcp_repair_opt opts[] = {
 		{ TCPOPT_WINDOW,		t->snd_ws + (t->rcv_ws << 16) },
@@ -3333,7 +3333,7 @@ fail:
  *
  * Return: 0 on success, negative error code on failure
  */
-int tcp_flow_repair_socket(struct ctx *c, struct tcp_tap_conn *conn)
+static int tcp_flow_repair_socket(struct ctx *c, struct tcp_tap_conn *conn)
 {
 	sa_family_t af = CONN_V4(conn) ? AF_INET : AF_INET6;
 	const struct flowside *sockside = HOSTFLOW(conn);