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

:::::: 
:::::: Manual check reason: "bisect to a FBC not belonging to original linux-review patches: branch: linux-review/Bjorn-Andersson/serial-qcom-geni-Convert-console-to-nbcon/20260730-163336, commit: d6aed29e528f1999fdc9ff58387885e7eb0f5858"
:::::: 

BCC: [email protected]
CC: [email protected]
TO: Bjorn Andersson <[email protected]>
CC: 0day robot <[email protected]>

tree:   https://github.com/intel-lab-lkp/linux/commits/Bjorn-Andersson/serial-qcom-geni-Convert-console-to-nbcon/20260730-163336
head:   d6aed29e528f1999fdc9ff58387885e7eb0f5858
commit: d6aed29e528f1999fdc9ff58387885e7eb0f5858 serial: qcom-geni: Keep FIFO RX active during console TX
date:   16 hours ago
:::::: branch date: 16 hours ago
:::::: commit date: 16 hours ago
config: arm64-randconfig-003-20260731 (https://download.01.org/0day-ci/archive/20260731/[email protected]/config)
compiler: aarch64-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260731/[email protected]/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
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/r/[email protected]/

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

c4f528795d1add Karthikeyan Ramasubramanian 2018-03-14  919  
d6aed29e528f19 Bjorn Andersson             2026-07-29  920  /* Caller holds the UART port lock. */
d6aed29e528f19 Bjorn Andersson             2026-07-29 @921  static void qcom_geni_serial_poll_rx_fifo_locked(struct uart_port *uport)
d6aed29e528f19 Bjorn Andersson             2026-07-29  922  {
d6aed29e528f19 Bjorn Andersson             2026-07-29  923  	struct qcom_geni_serial_port *port = to_dev_port(uport);
d6aed29e528f19 Bjorn Andersson             2026-07-29  924  	struct tty_port *tport = &uport->state->port;
d6aed29e528f19 Bjorn Andersson             2026-07-29  925  	u32 s_irq_status;
d6aed29e528f19 Bjorn Andersson             2026-07-29  926  	bool drop_rx = false;
d6aed29e528f19 Bjorn Andersson             2026-07-29  927  
d6aed29e528f19 Bjorn Andersson             2026-07-29  928  	s_irq_status = readl(uport->membase + SE_GENI_S_IRQ_STATUS);
d6aed29e528f19 Bjorn Andersson             2026-07-29  929  	writel(s_irq_status, uport->membase + SE_GENI_S_IRQ_CLEAR);
d6aed29e528f19 Bjorn Andersson             2026-07-29  930  
d6aed29e528f19 Bjorn Andersson             2026-07-29  931  	if (s_irq_status & S_RX_FIFO_WR_ERR_EN) {
d6aed29e528f19 Bjorn Andersson             2026-07-29  932  		uport->icount.overrun++;
d6aed29e528f19 Bjorn Andersson             2026-07-29  933  		tty_insert_flip_char(tport, 0, TTY_OVERRUN);
d6aed29e528f19 Bjorn Andersson             2026-07-29  934  	}
d6aed29e528f19 Bjorn Andersson             2026-07-29  935  
d6aed29e528f19 Bjorn Andersson             2026-07-29  936  	if (s_irq_status & (S_GP_IRQ_0_EN | S_GP_IRQ_1_EN)) {
d6aed29e528f19 Bjorn Andersson             2026-07-29  937  		if (s_irq_status & S_GP_IRQ_0_EN)
d6aed29e528f19 Bjorn Andersson             2026-07-29  938  			uport->icount.parity++;
d6aed29e528f19 Bjorn Andersson             2026-07-29  939  		drop_rx = true;
d6aed29e528f19 Bjorn Andersson             2026-07-29  940  	} else if (s_irq_status & (S_GP_IRQ_2_EN | S_GP_IRQ_3_EN)) {
d6aed29e528f19 Bjorn Andersson             2026-07-29  941  		uport->icount.brk++;
d6aed29e528f19 Bjorn Andersson             2026-07-29  942  		port->brk = true;
d6aed29e528f19 Bjorn Andersson             2026-07-29  943  	}
d6aed29e528f19 Bjorn Andersson             2026-07-29  944  
d6aed29e528f19 Bjorn Andersson             2026-07-29  945  	qcom_geni_serial_handle_rx_fifo(uport, drop_rx);
d6aed29e528f19 Bjorn Andersson             2026-07-29  946  }
d6aed29e528f19 Bjorn Andersson             2026-07-29  947  

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