linux-kernel - Re: [PATCH v12 2/3] mfd: sophgo: cv1800: rtcsys: New driver (handling RTC only)

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Message-ID: <202503061309.yjpOnrMo-lkp@intel.com>
Date: Thu, 6 Mar 2025 13:29:37 +0800
From: kernel test robot <lkp@...el.com>
To: Alexander Sverdlin <alexander.sverdlin@...il.com>,
	devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
	linux-rtc@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev,
	Alexander Sverdlin <alexander.sverdlin@...il.com>,
	Inochi Amaoto <inochiama@...il.com>, dlan@...too.org,
	linux-kernel@...r.kernel.org,
	Jingbao Qiu <qiujingbao.dlmu@...il.com>, Lee Jones <lee@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	sophgo@...ts.linux.dev
Subject: Re: [PATCH v12 2/3] mfd: sophgo: cv1800: rtcsys: New driver
 (handling RTC only)

Hi Alexander,

kernel test robot noticed the following build warnings:

[auto build test WARNING on lee-mfd/for-mfd-next]
[also build test WARNING on abelloni/rtc-next linus/master lee-mfd/for-mfd-fixes v6.14-rc5 next-20250305]
[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/Alexander-Sverdlin/dt-bindings-mfd-sophgo-add-RTC-support-for-Sophgo-CV1800-series-SoC/20250303-035433
base:   https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next
patch link:    https://lore.kernel.org/r/20250302195205.3183174-3-alexander.sverdlin%40gmail.com
patch subject: [PATCH v12 2/3] mfd: sophgo: cv1800: rtcsys: New driver (handling RTC only)
config: sh-allyesconfig (https://download.01.org/0day-ci/archive/20250306/202503061309.yjpOnrMo-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250306/202503061309.yjpOnrMo-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/202503061309.yjpOnrMo-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/mfd/cv1800-rtcsys.c:30:30: warning: 'cv1800_rtcsys_rtc_subdev' defined but not used [-Wunused-const-variable=]
      30 | static const struct mfd_cell cv1800_rtcsys_rtc_subdev =
         |                              ^~~~~~~~~~~~~~~~~~~~~~~~


vim +/cv1800_rtcsys_rtc_subdev +30 drivers/mfd/cv1800-rtcsys.c

    29	
  > 30	static const struct mfd_cell cv1800_rtcsys_rtc_subdev =
    31		MFD_CELL_NAME("cv1800-rtc");
    32	

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