Hi Crescent, kernel test robot noticed the following build warnings: [auto build test WARNING on tty/tty-testing] [also build test WARNING on tty/tty-next tty/tty-linus usb/usb-testing usb/usb-next usb/usb-linus linus/master v6.7-rc4 next-20231205] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Crescent-CY-Hsieh/tty-serial-8250-Fix-MOXA-RS422-RS485-PCIe-boards-not-work-by-default/20231201-154322 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing patch link: https://lore.kernel.org/r/20231201074055.259207-1-crescentcy.hsieh%40moxa.com patch subject: [RESEND PATCH] tty: serial: 8250: Fix MOXA RS422/RS485 PCIe boards not work by default config: x86_64-randconfig-122-20231202 (https://download.01.org/0day-ci/archive/20231206/202312060523.Kmstf65q-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231206/202312060523.Kmstf65q-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312060523.Kmstf65q-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/tty/serial/8250/8250_pci.c:2001:5: sparse: sparse: symbol 'pci_moxa_supported_rs' was not declared. Should it be static? vim +/pci_moxa_supported_rs +2001 drivers/tty/serial/8250/8250_pci.c 2000 > 2001 u32 pci_moxa_supported_rs(struct pci_dev *dev) 2002 { 2003 switch (dev->device & 0x0F00) { 2004 case 0x0000: 2005 case 0x0600: 2006 return MOXA_SUPP_RS232; 2007 case 0x0100: 2008 return MOXA_SUPP_RS232 | MOXA_SUPP_RS422 | MOXA_SUPP_RS485; 2009 case 0x0300: 2010 return MOXA_SUPP_RS422 | MOXA_SUPP_RS485; 2011 } 2012 return 0; 2013 } 2014 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
