drivers/tty/serial/qcom_geni_serial.c:921:13: warning: 'qcom_geni_serial_poll_rx_fifo_locked' defined but not used

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   986c24e0fe44f844b44d365b71ce831947f50298
commit: 8200871327d1bd4c08daf248a8693a3093982fa4 serial: qcom-geni: Keep FIFO RX active during console TX
date:   5 weeks ago
config: sh-randconfig-r133-20260904 (https://download.01.org/0day-ci/archive/20260905/202609050203.u7Y5yPkc-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 14.3.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260905/202609050203.u7Y5yPkc-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Fixes: 8200871327d1 ("serial: qcom-geni: Keep FIFO RX active during console TX")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609050203.u7Y5yPkc-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/tty/serial/qcom_geni_serial.c:921:13: warning: 'qcom_geni_serial_poll_rx_fifo_locked' defined but not used [-Wunused-function]
     921 | static void qcom_geni_serial_poll_rx_fifo_locked(struct uart_port *uport)
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/qcom_geni_serial_poll_rx_fifo_locked +921 drivers/tty/serial/qcom_geni_serial.c

   919	
   920	/* Caller holds the UART port lock. */
 > 921	static void qcom_geni_serial_poll_rx_fifo_locked(struct uart_port *uport)
   922	{
   923		struct qcom_geni_serial_port *port = to_dev_port(uport);
   924		struct tty_port *tport = &uport->state->port;
   925		u32 s_irq_status;
   926		bool drop_rx = false;
   927	
   928		s_irq_status = readl(uport->membase + SE_GENI_S_IRQ_STATUS);
   929		writel(s_irq_status, uport->membase + SE_GENI_S_IRQ_CLEAR);
   930	
   931		if (s_irq_status & S_RX_FIFO_WR_ERR_EN) {
   932			uport->icount.overrun++;
   933			tty_insert_flip_char(tport, 0, TTY_OVERRUN);
   934		}
   935	
   936		if (s_irq_status & (S_GP_IRQ_0_EN | S_GP_IRQ_1_EN)) {
   937			if (s_irq_status & S_GP_IRQ_0_EN)
   938				uport->icount.parity++;
   939			drop_rx = true;
   940		} else if (s_irq_status & (S_GP_IRQ_2_EN | S_GP_IRQ_3_EN)) {
   941			uport->icount.brk++;
   942			port->brk = true;
   943		}
   944	
   945		qcom_geni_serial_handle_rx_fifo(uport, drop_rx);
   946	}
   947	

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