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Message-ID: <202103092146.MN0FtxZb-lkp@intel.com>
Date: Tue, 9 Mar 2021 21:38:27 +0800
From: kernel test robot <lkp@...el.com>
To: Yang Li <yang.lee@...ux.alibaba.com>, agk@...hat.com
Cc: kbuild-all@...org, clang-built-linux@...glegroups.com,
snitzer@...hat.com, dm-devel@...hat.com,
linux-kernel@...r.kernel.org, Yang Li <yang.lee@...ux.alibaba.com>
Subject: Re: [PATCH] dm: remove unneeded variable 'sz'
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@...el.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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