* [linux-next:master 11347/11453] fs/dlm/debug_fs.c:1031:50: warning: '_queued_asts' directive output may be truncated writing 12 bytes into a region of size between 8 and 72
@ 2023-08-21 16:39 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-08-21 16:39 UTC (permalink / raw)
To: David Teigland; +Cc: oe-kbuild-all, Linux Memory Management List
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 47d9bb711707d15b19fad18c8e2b4b027a264a3a
commit: abb75a2a7ad1155be577117b0fa88a9b7f97f338 [11347/11453] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm.git
config: loongarch-randconfig-r032-20230821 (https://download.01.org/0day-ci/archive/20230822/202308220024.7HnE6uda-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230822/202308220024.7HnE6uda-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308220024.7HnE6uda-lkp@intel.com/
All warnings (new ones prefixed by >>):
fs/dlm/debug_fs.c: In function 'dlm_create_debug_file':
fs/dlm/debug_fs.c:1020:58: warning: 'snprintf' output may be truncated before the last format character [-Wformat-truncation=]
1020 | snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_waiters", ls->ls_name);
| ^
fs/dlm/debug_fs.c:1020:9: note: 'snprintf' output between 9 and 73 bytes into a destination of size 72
1020 | snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_waiters", ls->ls_name);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> fs/dlm/debug_fs.c:1031:50: warning: '_queued_asts' directive output may be truncated writing 12 bytes into a region of size between 8 and 72 [-Wformat-truncation=]
1031 | snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_queued_asts", ls->ls_name);
| ^~~~~~~~~~~~
fs/dlm/debug_fs.c:1031:9: note: 'snprintf' output between 13 and 77 bytes into a destination of size 72
1031 | snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_queued_asts", ls->ls_name);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/_queued_asts +1031 fs/dlm/debug_fs.c
5b2f981fde8b0d Alexander Aring 2021-05-21 973
a48f9721e6db74 Greg Kroah-Hartman 2019-06-12 974 void dlm_create_debug_file(struct dlm_ls *ls)
e7fd41792fc0ee David Teigland 2006-01-18 975 {
5de6319b183930 David Teigland 2006-07-25 976 char name[DLM_LOCKSPACE_LEN + 8];
5de6319b183930 David Teigland 2006-07-25 977
d022509d1c54be David Teigland 2008-12-16 978 /* format 1 */
d022509d1c54be David Teigland 2008-12-16 979
5de6319b183930 David Teigland 2006-07-25 980 ls->ls_debug_rsb_dentry = debugfs_create_file(ls->ls_name,
e7fd41792fc0ee David Teigland 2006-01-18 981 S_IFREG | S_IRUGO,
e7fd41792fc0ee David Teigland 2006-01-18 982 dlm_root,
e7fd41792fc0ee David Teigland 2006-01-18 983 ls,
892c4467e335e9 David Teigland 2009-01-07 984 &format1_fops);
d022509d1c54be David Teigland 2008-12-16 985
d022509d1c54be David Teigland 2008-12-16 986 /* format 2 */
5de6319b183930 David Teigland 2006-07-25 987
5de6319b183930 David Teigland 2006-07-25 988 memset(name, 0, sizeof(name));
d022509d1c54be David Teigland 2008-12-16 989 snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_locks", ls->ls_name);
5de6319b183930 David Teigland 2006-07-25 990
d022509d1c54be David Teigland 2008-12-16 991 ls->ls_debug_locks_dentry = debugfs_create_file(name,
5054e79de99984 Alexander Aring 2021-11-02 992 0644,
5de6319b183930 David Teigland 2006-07-25 993 dlm_root,
5de6319b183930 David Teigland 2006-07-25 994 ls,
892c4467e335e9 David Teigland 2009-01-07 995 &format2_fops);
d022509d1c54be David Teigland 2008-12-16 996
d022509d1c54be David Teigland 2008-12-16 997 /* format 3 */
5de6319b183930 David Teigland 2006-07-25 998
9dd592d70be0db David Teigland 2007-05-29 999 memset(name, 0, sizeof(name));
d022509d1c54be David Teigland 2008-12-16 1000 snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_all", ls->ls_name);
9dd592d70be0db David Teigland 2007-05-29 1001
d022509d1c54be David Teigland 2008-12-16 1002 ls->ls_debug_all_dentry = debugfs_create_file(name,
9dd592d70be0db David Teigland 2007-05-29 1003 S_IFREG | S_IRUGO,
9dd592d70be0db David Teigland 2007-05-29 1004 dlm_root,
9dd592d70be0db David Teigland 2007-05-29 1005 ls,
892c4467e335e9 David Teigland 2009-01-07 1006 &format3_fops);
d022509d1c54be David Teigland 2008-12-16 1007
c04fecb4d9f775 David Teigland 2012-05-10 1008 /* format 4 */
c04fecb4d9f775 David Teigland 2012-05-10 1009
c04fecb4d9f775 David Teigland 2012-05-10 1010 memset(name, 0, sizeof(name));
c04fecb4d9f775 David Teigland 2012-05-10 1011 snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_toss", ls->ls_name);
c04fecb4d9f775 David Teigland 2012-05-10 1012
c04fecb4d9f775 David Teigland 2012-05-10 1013 ls->ls_debug_toss_dentry = debugfs_create_file(name,
c04fecb4d9f775 David Teigland 2012-05-10 1014 S_IFREG | S_IRUGO,
c04fecb4d9f775 David Teigland 2012-05-10 1015 dlm_root,
c04fecb4d9f775 David Teigland 2012-05-10 1016 ls,
c04fecb4d9f775 David Teigland 2012-05-10 1017 &format4_fops);
c04fecb4d9f775 David Teigland 2012-05-10 1018
d022509d1c54be David Teigland 2008-12-16 1019 memset(name, 0, sizeof(name));
d022509d1c54be David Teigland 2008-12-16 1020 snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_waiters", ls->ls_name);
d022509d1c54be David Teigland 2008-12-16 1021
d022509d1c54be David Teigland 2008-12-16 1022 ls->ls_debug_waiters_dentry = debugfs_create_file(name,
63eab2b00bcff6 Alexander Aring 2021-11-02 1023 0644,
d022509d1c54be David Teigland 2008-12-16 1024 dlm_root,
d022509d1c54be David Teigland 2008-12-16 1025 ls,
d022509d1c54be David Teigland 2008-12-16 1026 &waiters_fops);
541adb0d4d10b4 Alexander Aring 2023-08-01 1027
541adb0d4d10b4 Alexander Aring 2023-08-01 1028 /* format 5 */
541adb0d4d10b4 Alexander Aring 2023-08-01 1029
541adb0d4d10b4 Alexander Aring 2023-08-01 1030 memset(name, 0, sizeof(name));
541adb0d4d10b4 Alexander Aring 2023-08-01 @1031 snprintf(name, DLM_LOCKSPACE_LEN + 8, "%s_queued_asts", ls->ls_name);
541adb0d4d10b4 Alexander Aring 2023-08-01 1032
541adb0d4d10b4 Alexander Aring 2023-08-01 1033 ls->ls_debug_queued_asts_dentry = debugfs_create_file(name,
541adb0d4d10b4 Alexander Aring 2023-08-01 1034 0644,
541adb0d4d10b4 Alexander Aring 2023-08-01 1035 dlm_root,
541adb0d4d10b4 Alexander Aring 2023-08-01 1036 ls,
541adb0d4d10b4 Alexander Aring 2023-08-01 1037 &format5_fops);
e7fd41792fc0ee David Teigland 2006-01-18 1038 }
e7fd41792fc0ee David Teigland 2006-01-18 1039
:::::: The code at line 1031 was first introduced by commit
:::::: 541adb0d4d10b4daf15f4b6b73c5d6b855d23eb5 fs: dlm: debugfs for queued callbacks
:::::: TO: Alexander Aring <aahringo@redhat.com>
:::::: CC: David Teigland <teigland@redhat.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2023-08-21 16:39 [linux-next:master 11347/11453] fs/dlm/debug_fs.c:1031:50: warning: '_queued_asts' directive output may be truncated writing 12 bytes into a region of size between 8 and 72 kernel test robot
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