linux-kernel - Re: [PATCH 7/7] hwmon: iio: Add alarm support

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Message-ID: <202507161550.frzFNyCa-lkp@intel.com>
Date: Wed, 16 Jul 2025 15:44:04 +0800
From: kernel test robot <lkp@...el.com>
To: Sean Anderson <sean.anderson@...ux.dev>,
	Jonathan Cameron <jic23@...nel.org>,
	Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>, linux-iio@...r.kernel.org,
	linux-hwmon@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Andy Shevchenko <andy@...nel.org>,
	Nuno Sá <nuno.sa@...log.com>,
	linux-kernel@...r.kernel.org, David Lechner <dlechner@...libre.com>,
	Sean Anderson <sean.anderson@...ux.dev>
Subject: Re: [PATCH 7/7] hwmon: iio: Add alarm support

Hi Sean,

kernel test robot noticed the following build warnings:

[auto build test WARNING on jic23-iio/togreg]
[also build test WARNING on groeck-staging/hwmon-next akpm-mm/mm-nonmm-unstable linus/master v6.16-rc6 next-20250715]
[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/Sean-Anderson/math64-Add-div64_s64_rem/20250715-092337
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
patch link:    https://lore.kernel.org/r/20250715012023.2050178-8-sean.anderson%40linux.dev
patch subject: [PATCH 7/7] hwmon: iio: Add alarm support
config: i386-randconfig-063-20250716 (https://download.01.org/0day-ci/archive/20250716/202507161550.frzFNyCa-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250716/202507161550.frzFNyCa-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/202507161550.frzFNyCa-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/hwmon/iio_hwmon.c:25:1: sparse: sparse: symbol 'iio_hwmon_listener_lock' was not declared. Should it be static?
>> drivers/hwmon/iio_hwmon.c:26:1: sparse: sparse: symbol 'iio_hwmon_listeners' was not declared. Should it be static?

vim +/iio_hwmon_listener_lock +25 drivers/hwmon/iio_hwmon.c

    23	
    24	/* Protects iio_hwmon_listeners and listeners' refcnt */
  > 25	DEFINE_MUTEX(iio_hwmon_listener_lock);
  > 26	LIST_HEAD(iio_hwmon_listeners);
    27	

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