linux-kernel - [colyli-bcache:nvdimm-meta 12/23] drivers/md/bcache/nvmpg_format.h:132:19: error: 'bch_nvmpg_recs

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Message-ID: <202110281541.DJZzHPmd-lkp@intel.com>
Date:   Thu, 28 Oct 2021 15:59:49 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jianpeng Ma <jianpeng.ma@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Coly Li <colyli@...e.de>, Qiaowei Ren <qiaowei.ren@...el.com>
Subject: [colyli-bcache:nvdimm-meta 12/23]
 drivers/md/bcache/nvmpg_format.h:132:19: error: 'bch_nvmpg_recs_magic'
 defined but not used

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git nvdimm-meta
head:   544e57301b9adc7628556f4b709f65c35142df47
commit: d0a096b054485476b6788ae2a071c036dcffc248 [12/23] bcache: initialize the nvm pages allocator
config: openrisc-buildonly-randconfig-r001-20211027 (attached as .config)
compiler: or1k-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://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git/commit/?id=d0a096b054485476b6788ae2a071c036dcffc248
        git remote add colyli-bcache https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git
        git fetch --no-tags colyli-bcache nvdimm-meta
        git checkout d0a096b054485476b6788ae2a071c036dcffc248
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=openrisc 

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 >>):

   In file included from drivers/md/bcache/nvmpg.h:8,
                    from drivers/md/bcache/super.c:17:
>> drivers/md/bcache/nvmpg_format.h:132:19: error: 'bch_nvmpg_recs_magic' defined but not used [-Werror=unused-const-variable=]
     132 | static const __u8 bch_nvmpg_recs_magic[] = {
         |                   ^~~~~~~~~~~~~~~~~~~~
>> drivers/md/bcache/nvmpg_format.h:129:19: error: 'bch_nvmpg_magic' defined but not used [-Werror=unused-const-variable=]
     129 | static const __u8 bch_nvmpg_magic[] = {
         |                   ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/bch_nvmpg_recs_magic +132 drivers/md/bcache/nvmpg_format.h

d5ca176bc66727 Coly Li 2021-07-26  128  
d5ca176bc66727 Coly Li 2021-07-26 @129  static const __u8 bch_nvmpg_magic[] = {
d5ca176bc66727 Coly Li 2021-07-26  130  	0x17, 0xbd, 0x53, 0x7f, 0x1b, 0x23, 0xd6, 0x83,
d5ca176bc66727 Coly Li 2021-07-26  131  	0x46, 0xa4, 0xf8, 0x28, 0x17, 0xda, 0xec, 0xa9 };
d5ca176bc66727 Coly Li 2021-07-26 @132  static const __u8 bch_nvmpg_recs_magic[] = {
d5ca176bc66727 Coly Li 2021-07-26  133  	0x39, 0x25, 0x3f, 0xf7, 0x27, 0x17, 0xd0, 0xb9,
d5ca176bc66727 Coly Li 2021-07-26  134  	0x10, 0xe6, 0xd2, 0xda, 0x38, 0x68, 0x26, 0xae };
d5ca176bc66727 Coly Li 2021-07-26  135  

:::::: The code at line 132 was first introduced by commit
:::::: d5ca176bc66727740baa4c80ba1349ba25dc95f7 bcache: add initial data structures for nvm pages

:::::: TO: Coly Li <colyli@...e.de>
:::::: CC: Coly Li <colyli@...e.de>

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

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