diff --git a/console-server.c b/console-server.c
index 11d017b..17a923a 100644
--- a/console-server.c
+++ b/console-server.c
@@ -357,9 +357,12 @@
 	return sd_bus_reply_method_return(msg, "x", r);
 }
 
-static int get_handler(sd_bus *bus, const char *path, const char *interface,
-		       const char *property, sd_bus_message *reply, void *userdata,
-		       sd_bus_error *error) {
+static int get_handler(sd_bus *bus __attribute__((unused)),
+		       const char *path __attribute__((unused)),
+		       const char *interface __attribute__((unused)),
+		       const char *property __attribute__((unused)),
+		       sd_bus_message *reply, void *userdata,
+		       sd_bus_error *error __attribute__((unused))) {
 	struct console *console = userdata;
 	uint32_t baudrate;
 	int r;
@@ -380,7 +383,7 @@
 	SD_BUS_PROPERTY("baudrate", "u", get_handler, 0, 0),
 	SD_BUS_VTABLE_END,};
 
-static void dbus_init(struct console *console, struct config *config)
+static void dbus_init(struct console *console, struct config *config __attribute__((unused)))
 {
 	int dbus_poller = 0;
 	int fd, r;
@@ -573,8 +576,8 @@
 	console->pollfds[i].events = events;
 }
 
-void console_poller_set_timeout(struct console *console, struct poller *poller,
-		const struct timeval *tv)
+void console_poller_set_timeout(struct console *console __attribute__((unused)),
+		struct poller *poller, const struct timeval *tv)
 {
 	struct timeval now;
 	int rc;
diff --git a/log-handler.c b/log-handler.c
index 2e0df6e..6d31be6 100644
--- a/log-handler.c
+++ b/log-handler.c
@@ -51,7 +51,7 @@
 	return container_of(handler, struct log_handler, handler);
 }
 
-static int log_trim(struct log_handler *lh, size_t space)
+static int log_trim(struct log_handler *lh)
 {
 	int rc;
 
@@ -84,7 +84,7 @@
 	}
 
 	if (lh->size + len > lh->maxsize) {
-		rc = log_trim(lh, len);
+		rc = log_trim(lh);
 		if (rc)
 			return rc;
 	}
diff --git a/socket-handler.c b/socket-handler.c
index 42690be..7da6818 100644
--- a/socket-handler.c
+++ b/socket-handler.c
@@ -211,7 +211,7 @@
 	return RINGBUFFER_POLL_OK;
 }
 
-static enum poller_ret client_timeout(struct handler *handler, void *data)
+static enum poller_ret client_timeout(struct handler *handler __attribute__((unused)), void *data)
 {
 	struct client *client = data;
 	int rc = 0;