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-rw-r--r--include/linux/serial_core.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 378d80a8dd43..344201437017 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -367,11 +367,18 @@ extern const struct earlycon_id __earlycon_table_end[];
#define EARLYCON_DECLARE(_name, fn) OF_EARLYCON_DECLARE(_name, "", fn)
-extern int setup_earlycon(char *buf);
extern int of_setup_earlycon(const struct earlycon_id *match,
unsigned long node,
const char *options);
+#ifdef CONFIG_SERIAL_EARLYCON
+extern bool earlycon_init_is_deferred __initdata;
+int setup_earlycon(char *buf);
+#else
+static const bool earlycon_init_is_deferred;
+static inline int setup_earlycon(char *buf) { return 0; }
+#endif
+
struct uart_port *uart_get_console(struct uart_port *ports, int nr,
struct console *c);
int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,