From: kernel test robot <lkp@intel.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: drivers/opp/debugfs.c:48:54: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8
Date: Wed, 14 Feb 2024 13:43:24 +0800 [thread overview]
Message-ID: <202402141313.81ltVF5g-lkp@intel.com> (raw)
Hi Viresh,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 7e90b5c295ec1e47c8ad865429f046970c549a66
commit: 46f48aca2e5aef3f430e95d1a5fb68227ec8ec85 OPP: Fix missing debugfs supply directory for OPPs
date: 5 years ago
config: x86_64-buildonly-randconfig-001-20231012 (https://download.01.org/0day-ci/archive/20240214/202402141313.81ltVF5g-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240214/202402141313.81ltVF5g-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/202402141313.81ltVF5g-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/opp/debugfs.c: In function 'opp_debug_create_one':
>> drivers/opp/debugfs.c:48:54: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 [-Wformat-truncation=]
48 | snprintf(name, sizeof(name), "supply-%d", i);
| ^~
In function 'opp_debug_create_supplies',
inlined from 'opp_debug_create_one' at drivers/opp/debugfs.c:119:7:
drivers/opp/debugfs.c:48:46: note: directive argument in the range [-2147483644, 2147483646]
48 | snprintf(name, sizeof(name), "supply-%d", i);
| ^~~~~~~~~~~
drivers/opp/debugfs.c:48:17: note: 'snprintf' output between 9 and 19 bytes into a destination of size 15
48 | snprintf(name, sizeof(name), "supply-%d", i);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +48 drivers/opp/debugfs.c
deaa51465105a7 drivers/base/power/opp/debugfs.c Viresh Kumar 2015-11-11 37
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 38 static bool opp_debug_create_supplies(struct dev_pm_opp *opp,
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 39 struct opp_table *opp_table,
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 40 struct dentry *pdentry)
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 41 {
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 42 struct dentry *d;
1fae788ed640e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2017-05-23 43 int i;
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 44
1fae788ed640e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2017-05-23 45 for (i = 0; i < opp_table->regulator_count; i++) {
d741029a239040 drivers/opp/debugfs.c Arvind Yadav 2017-09-21 46 char name[15];
d741029a239040 drivers/opp/debugfs.c Arvind Yadav 2017-09-21 47
d741029a239040 drivers/opp/debugfs.c Arvind Yadav 2017-09-21 @48 snprintf(name, sizeof(name), "supply-%d", i);
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 49
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 50 /* Create per-opp directory */
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 51 d = debugfs_create_dir(name, pdentry);
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 52
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 53 if (!d)
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 54 return false;
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 55
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 56 if (!debugfs_create_ulong("u_volt_target", S_IRUGO, d,
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 57 &opp->supplies[i].u_volt))
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 58 return false;
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 59
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 60 if (!debugfs_create_ulong("u_volt_min", S_IRUGO, d,
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 61 &opp->supplies[i].u_volt_min))
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 62 return false;
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 63
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 64 if (!debugfs_create_ulong("u_volt_max", S_IRUGO, d,
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 65 &opp->supplies[i].u_volt_max))
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 66 return false;
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 67
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 68 if (!debugfs_create_ulong("u_amp", S_IRUGO, d,
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 69 &opp->supplies[i].u_amp))
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 70 return false;
1fae788ed640e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2017-05-23 71 }
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 72
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 73 return true;
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 74 }
dfbe4678d709e2 drivers/base/power/opp/debugfs.c Viresh Kumar 2016-12-01 75
:::::: The code at line 48 was first introduced by commit
:::::: d741029a2390406d4d94279ae5b346831a9e61e6 PM / OPP: Use snprintf() to avoid kasprintf() and kfree()
:::::: TO: Arvind Yadav <arvind.yadav.cs@gmail.com>
:::::: CC: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2024-02-14 5:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-14 5:43 kernel test robot [this message]
2024-02-14 5:58 ` drivers/opp/debugfs.c:48:54: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 Viresh Kumar
2024-02-21 6:01 ` Liu, Yujie
2024-03-04 6:54 ` Viresh Kumar
2024-03-04 8:30 ` Yujie Liu
2024-03-04 11:21 ` Viresh Kumar
2024-03-05 5:37 ` Yujie Liu
2024-03-05 6:10 ` Viresh Kumar
-- strict thread matches above, loose matches on Subject: below --
2023-12-16 22:23 kernel test robot
2023-12-18 6:10 ` Viresh Kumar
2023-11-06 10:41 kernel test robot
2023-11-08 6:13 ` Viresh Kumar
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