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-rw-r--r--include/linux/serial_core.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index cbd5070bc87f..fde258b3decd 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -45,6 +45,7 @@ struct uart_ops {
void (*unthrottle)(struct uart_port *);
void (*send_xchar)(struct uart_port *, char ch);
void (*stop_rx)(struct uart_port *);
+ void (*start_rx)(struct uart_port *);
void (*enable_ms)(struct uart_port *);
void (*break_ctl)(struct uart_port *, int ctl);
int (*startup)(struct uart_port *);
@@ -389,6 +390,11 @@ static const bool earlycon_acpi_spcr_enable EARLYCON_USED_OR_UNUSED;
static inline int setup_earlycon(char *buf) { return 0; }
#endif
+static inline bool uart_console_enabled(struct uart_port *port)
+{
+ return uart_console(port) && (port->cons->flags & CON_ENABLED);
+}
+
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,