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From: kernel test robot <lkp@intel.com>
To: Yang Li <yang.lee@linux.alibaba.com>, agk@redhat.com
Cc: kbuild-all@01.org, clang-built-linux@googlegroups.com,
	snitzer@redhat.com, dm-devel@redhat.com,
	linux-kernel@vger.kernel.org,
	Yang Li <yang.lee@linux.alibaba.com>
Subject: Re: [PATCH] dm: remove unneeded variable 'sz'
Date: Tue, 9 Mar 2021 21:38:27 +0800	[thread overview]
Message-ID: <202103092146.MN0FtxZb-lkp@intel.com> (raw)
In-Reply-To: <1615282320-28246-1-git-send-email-yang.lee@linux.alibaba.com>

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Hi Yang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on dm/for-next]
[also build test ERROR on v5.12-rc2 next-20210309]
[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/0day-ci/linux/commits/Yang-Li/dm-remove-unneeded-variable-sz/20210309-173431
base:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
config: x86_64-randconfig-a011-20210308 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 820f508b08d7c94b2dd7847e9710d2bc36d3dd45)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/a0feb390ae71f527ea5582a23afa1889bba31eab
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Yang-Li/dm-remove-unneeded-variable-sz/20210309-173431
        git checkout a0feb390ae71f527ea5582a23afa1889bba31eab
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All errors (new ones prefixed by >>):

>> drivers/md/dm-ps-service-time.c:88:3: error: use of undeclared identifier 'sz'
                   DMEMIT("0 ");
                   ^
   include/linux/device-mapper.h:588:22: note: expanded from macro 'DMEMIT'
   #define DMEMIT(x...) sz += ((sz >= maxlen) ? \
                        ^
>> drivers/md/dm-ps-service-time.c:88:3: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:588:30: note: expanded from macro 'DMEMIT'
   #define DMEMIT(x...) sz += ((sz >= maxlen) ? \
                                ^
>> drivers/md/dm-ps-service-time.c:88:3: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:589:29: note: expanded from macro 'DMEMIT'
                             0 : scnprintf(result + sz, maxlen - sz, x))
                                                    ^
>> drivers/md/dm-ps-service-time.c:88:3: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:589:42: note: expanded from macro 'DMEMIT'
                             0 : scnprintf(result + sz, maxlen - sz, x))
                                                                 ^
   drivers/md/dm-ps-service-time.c:94:4: error: use of undeclared identifier 'sz'
                           DMEMIT("%d %u ", atomic_read(&pi->in_flight_size),
                           ^
   include/linux/device-mapper.h:588:22: note: expanded from macro 'DMEMIT'
   #define DMEMIT(x...) sz += ((sz >= maxlen) ? \
                        ^
   drivers/md/dm-ps-service-time.c:94:4: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:588:30: note: expanded from macro 'DMEMIT'
   #define DMEMIT(x...) sz += ((sz >= maxlen) ? \
                                ^
   drivers/md/dm-ps-service-time.c:94:4: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:589:29: note: expanded from macro 'DMEMIT'
                             0 : scnprintf(result + sz, maxlen - sz, x))
                                                    ^
   drivers/md/dm-ps-service-time.c:94:4: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:589:42: note: expanded from macro 'DMEMIT'
                             0 : scnprintf(result + sz, maxlen - sz, x))
                                                                 ^
   drivers/md/dm-ps-service-time.c:98:4: error: use of undeclared identifier 'sz'
                           DMEMIT("%u %u ", pi->repeat_count,
                           ^
   include/linux/device-mapper.h:588:22: note: expanded from macro 'DMEMIT'
   #define DMEMIT(x...) sz += ((sz >= maxlen) ? \
                        ^
   drivers/md/dm-ps-service-time.c:98:4: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:588:30: note: expanded from macro 'DMEMIT'
   #define DMEMIT(x...) sz += ((sz >= maxlen) ? \
                                ^
   drivers/md/dm-ps-service-time.c:98:4: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:589:29: note: expanded from macro 'DMEMIT'
                             0 : scnprintf(result + sz, maxlen - sz, x))
                                                    ^
   drivers/md/dm-ps-service-time.c:98:4: error: use of undeclared identifier 'sz'
   include/linux/device-mapper.h:589:42: note: expanded from macro 'DMEMIT'
                             0 : scnprintf(result + sz, maxlen - sz, x))
                                                                 ^
   12 errors generated.


vim +/sz +88 drivers/md/dm-ps-service-time.c

f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   81  
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   82  static int st_status(struct path_selector *ps, struct dm_path *path,
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   83  		     status_type_t type, char *result, unsigned maxlen)
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   84  {
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   85  	struct path_info *pi;
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   86  
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   87  	if (!path)
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22  @88  		DMEMIT("0 ");
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   89  	else {
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   90  		pi = path->pscontext;
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   91  
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   92  		switch (type) {
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   93  		case STATUSTYPE_INFO:
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   94  			DMEMIT("%d %u ", atomic_read(&pi->in_flight_size),
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   95  			       pi->relative_throughput);
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   96  			break;
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   97  		case STATUSTYPE_TABLE:
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   98  			DMEMIT("%u %u ", pi->repeat_count,
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22   99  			       pi->relative_throughput);
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22  100  			break;
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22  101  		}
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22  102  	}
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22  103  
a0feb390ae71f5 drivers/md/dm-ps-service-time.c Yang Li      2021-03-09  104  	return 0;
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22  105  }
f392ba889b0196 drivers/md/dm-service-time.c    Kiyoshi Ueda 2009-06-22  106  

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

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  reply	other threads:[~2021-03-09 13:39 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-09  9:32 [PATCH] dm: remove unneeded variable 'sz' Yang Li
2021-03-09 13:38 ` kernel test robot [this message]
2021-03-09 17:24 ` kernel test robot
2021-03-09 20:14 ` Mike Snitzer

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