linux-kernel - drivers/tty/serial/sifive.c:1036:1: sparse: sparse: symbol 'sifive_uart_pm_ops' was not declared. Should it be static?

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Date:   Thu, 16 Nov 2023 13:49:39 +0800
From:   kernel test robot <yujie.liu@...el.com>
To:     Nick Hu <nick.hu@...ive.com>
CC:     <oe-kbuild-all@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
        Ben Dooks <ben.dooks@...ethink.co.uk>
Subject: drivers/tty/serial/sifive.c:1036:1: sparse: sparse: symbol
 'sifive_uart_pm_ops' was not declared. Should it be static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c42d9eeef8e5ba9292eda36fd8e3c11f35ee065c
commit: 8a6498f2b94333f1793bc912b11830655f975470 serial: sifive: Add suspend and resume operations
config: sparc-randconfig-r021-20230427 (https://download.01.org/0day-ci/archive/20231116/202311161318.pH043qET-lkp@intel.com/config)
compiler: sparc-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20231116/202311161318.pH043qET-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 <yujie.liu@...el.com>
| Closes: https://lore.kernel.org/r/202311161318.pH043qET-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/tty/serial/sifive.c:1036:1: sparse: sparse: symbol 'sifive_uart_pm_ops' was not declared. Should it be static?
   drivers/tty/serial/sifive.c: note: in included file (through include/linux/mmzone.h, include/linux/topology.h, include/linux/irq.h):
   include/linux/page-flags.h:240:46: sparse: sparse: self-comparison always evaluates to false

vim +/sifive_uart_pm_ops +1036 drivers/tty/serial/sifive.c

8a6498f2b94333 Nick Hu 2023-08-15  1035  
8a6498f2b94333 Nick Hu 2023-08-15 @1036  DEFINE_SIMPLE_DEV_PM_OPS(sifive_uart_pm_ops, sifive_serial_suspend,
8a6498f2b94333 Nick Hu 2023-08-15  1037  			 sifive_serial_resume);
8a6498f2b94333 Nick Hu 2023-08-15  1038  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki