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-rw-r--r--drivers/serial/8250.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 244e8ff1197..7aca22c9976 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2326,6 +2326,12 @@ static struct uart_driver serial8250_reg = {
.cons = SERIAL8250_CONSOLE,
};
+/*
+ * early_serial_setup - early registration for 8250 ports
+ *
+ * Setup an 8250 port structure prior to console initialisation. Use
+ * after console initialisation will cause undefined behaviour.
+ */
int __init early_serial_setup(struct uart_port *port)
{
if (port->line >= ARRAY_SIZE(serial8250_ports))