[freescale-fslc:5.15-2.2.x-imx 4263/27938] drivers/tty/serial/fsl_linflexuart.c:180:13: warning: 'linflex_string_write' used but never defined

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

tree:   https://github.com/Freescale/linux-fslc 5.15-2.2.x-imx
head:   d761b18f6bc83bce94251467e3c0974243318456
commit: 093375dfcc1c685b974c21cb9b50f44df4dcf29f [4263/27938] LF-631-7 tty: serial: linflexuart: Add support for FIFO with DMA
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20240303/202403031513.avMTKobf-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240303/202403031513.avMTKobf-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
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202403031513.avMTKobf-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/tty/serial/fsl_linflexuart.c:180:13: warning: 'linflex_string_write' used but never defined
     180 | static void linflex_string_write(struct linflex_port *sport, const char *s,
         |             ^~~~~~~~~~~~~~~~~~~~


vim +/linflex_string_write +180 drivers/tty/serial/fsl_linflexuart.c

   176	
   177	/* Forward declare this for the dma callbacks. */
   178	static void linflex_dma_tx_complete(void *arg);
   179	static void linflex_dma_rx_complete(void *arg);
 > 180	static void linflex_string_write(struct linflex_port *sport, const char *s,
   181					 unsigned int count);
   182	

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