uart_handle_sysrq_char  444 include/linux/serial_core.h uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
uart_handle_sysrq_char  459 include/linux/serial_core.h #define uart_handle_sysrq_char(port,ch) uart_handle_sysrq_char(port, 0)