linux-kernel - Re: [PATCH v1 2/4] hwmon: (bt1-pvt) use generic polynomial functions

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Date:   Sun, 27 Mar 2022 09:10:14 +0800
From:   kernel test robot <lkp@...el.com>
To:     Michael Walle <michael@...le.cc>, Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-hwmon@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michael Walle <michael@...le.cc>
Subject: Re: [PATCH v1 2/4] hwmon: (bt1-pvt) use generic polynomial functions

Hi Michael,

I love your patch! Yet something to improve:

[auto build test ERROR on groeck-staging/hwmon-next]
[also build test ERROR on robh/for-next linus/master v5.17 next-20220325]
[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]

url:    https://github.com/intel-lab-lkp/linux/commits/Michael-Walle/hwmon-add-lan9668-driver/20220327-032606
base:   https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next
config: ia64-buildonly-randconfig-r002-20220327 (https://download.01.org/0day-ci/archive/20220327/202203270925.NrqU6SE8-lkp@intel.com/config)
compiler: ia64-linux-gcc (GCC) 11.2.0
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
        # https://github.com/intel-lab-lkp/linux/commit/51d4d93c8777a757e21386aa76ccc128a6bd85af
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Michael-Walle/hwmon-add-lan9668-driver/20220327-032606
        git checkout 51d4d93c8777a757e21386aa76ccc128a6bd85af
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   ia64-linux-ld: drivers/hwmon/bt1-pvt.o: in function `pvt_read_data':
>> bt1-pvt.c:(.text+0xeb2): undefined reference to `polynomial_calc'

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp