Re: [PATCH v4] iio: magnetometer: rm3100: Modernize locking and refactor control flow

kernel test robot
2026-05-03T00:08:50Z

Hi Maxwell,

kernel test robot noticed the following build warnings:

[auto build test WARNING on jic23-iio/togreg]
[also build test WARNING on linus/master v7.1-rc1 next-20260430]
[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/Maxwell-Doose/iio-magnetometer-rm3100-Modernize-locking-and-refactor-control-flow/20260502-014808
base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
patch link: https://lore.kernel.org/r/20260430021439.67591-1-m32285159%40gmail.com
patch subject: [PATCH v4] iio: magnetometer: rm3100: Modernize locking and refactor control flow
config: s390-randconfig-r071-20260503 (https://download.01.org/0day-ci/archive/20260503/202605030817.kUz9B6MC-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 15.2.0
smatch: v0.5.0-9065-ge9cc34fd
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260503/202605030817.kUz9B6MC-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/202605030817.kUz9B6MC-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> Warning: drivers/iio/magnetometer/rm3100-core.c:467 expecting prototype for rm3100_guarded_regmap_bulk_read(). Prototype was for rm3100_regmap_bulk_read_locked() instead

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