linux-kernel - Re: [PATCH 1/2] hwmon: shtc1: add support for device tree bindings

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Date:   Fri, 3 Jul 2020 19:12:45 +0800
From:   kernel test robot <lkp@...el.com>
To:     Chris Ruehl <chris.ruehl@...ys.com.hk>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        Jack Lo <jack.lo@...ys.com.hk>, devicetree@...r.kernel.org,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] hwmon: shtc1: add support for device tree bindings

Hi Chris,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on hwmon/hwmon-next]
[also build test WARNING on v5.8-rc3 next-20200703]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use  as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Chris-Ruehl/hwmon-shtc1-add-support-for-device-tree-bindings/20200703-124921
base:   https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next
config: arm-randconfig-r012-20200701 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project ca464639a1c9dd3944eb055ffd2796e8c2e7639f)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/hwmon/shtc1.c:282:34: warning: unused variable 'shtc1_of_match' [-Wunused-const-variable]
   static const struct of_device_id shtc1_of_match[] = {
                                    ^
   1 warning generated.

vim +/shtc1_of_match +282 drivers/hwmon/shtc1.c

   280	
   281	#ifdef CONFIG_OF
 > 282	static const struct of_device_id shtc1_of_match[] = {
   283		{ .compatible = "sensirion,shtc1" },
   284		{ .compatible = "sensirion,shtw1" },
   285		{ .compatible = "sensirion,shtc3" },
   286		{ }
   287	};
   288	MODULE_DEVICE_TABLE(of, shtc1_of_match);
   289	#endif
   290	static struct i2c_driver shtc1_i2c_driver = {
   291		.driver.name  = "shtc1",
   292		.probe        = shtc1_probe,
   293		.id_table     = shtc1_id,
   294	};
   295	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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