linux-kernel - drivers/regulator/dummy.c:59:24: sparse: sparse: symbol 'dummy_regulator_driver' was not declared. Should it be static?

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Message-ID: <202601132238.010kK8PS-lkp@intel.com>
Date: Tue, 13 Jan 2026 22:14:24 +0800
From: kernel test robot <lkp@...el.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
 Mark Brown <broonie@...nel.org>,
 Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: drivers/regulator/dummy.c:59:24: sparse: sparse: symbol
 'dummy_regulator_driver' was not declared. Should it be static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b71e635feefc852405b14620a7fc58c4c80c0f73
commit: dcd2a9a5550ef556c8fc11601a0f729fb71ead5d regulator: dummy: convert to use the faux device interface
date:   10 months ago
config: i386-randconfig-063-20260113 (https://download.01.org/0day-ci/archive/20260113/202601132238.010kK8PS-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260113/202601132238.010kK8PS-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601132238.010kK8PS-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/regulator/dummy.c:59:24: sparse: sparse: symbol 'dummy_regulator_driver' was not declared. Should it be static?

vim +/dummy_regulator_driver +59 drivers/regulator/dummy.c

    58	
  > 59	struct faux_device_ops dummy_regulator_driver = {
    60		.probe = dummy_regulator_probe,
    61	};
    62	

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