* [linux-next:master 11118/11453] arch/powerpc/platforms/pseries/lpar.c:2024:36: error: '%ld' directive writing between 1 and 20 bytes into a region of size 12
@ 2023-08-22 3:24 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-08-22 3:24 UTC (permalink / raw)
To: Arnd Bergmann
Cc: oe-kbuild-all, Linux Memory Management List, Masahiro Yamada
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 47d9bb711707d15b19fad18c8e2b4b027a264a3a
commit: 6d4ab2e97dcfbcd748ae71761a9d8e5e41cc732c [11118/11453] extrawarn: enable format and stringop overflow warnings in W=1
config: powerpc64-defconfig (https://download.01.org/0day-ci/archive/20230822/202308221126.HCcSBbdQ-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230822/202308221126.HCcSBbdQ-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/202308221126.HCcSBbdQ-lkp@intel.com/
All errors (new ones prefixed by >>):
arch/powerpc/platforms/pseries/lpar.c: In function '__machine_initcall_pseries_vpa_debugfs_init':
>> arch/powerpc/platforms/pseries/lpar.c:2024:36: error: '%ld' directive writing between 1 and 20 bytes into a region of size 12 [-Werror=format-overflow=]
2024 | sprintf(name, "cpu-%ld", i);
| ^~~
In function 'vpa_debugfs_init',
inlined from '__machine_initcall_pseries_vpa_debugfs_init' at arch/powerpc/platforms/pseries/lpar.c:2030:1:
arch/powerpc/platforms/pseries/lpar.c:2024:31: note: directive argument in the range [-9223372036854775808, 4294967294]
2024 | sprintf(name, "cpu-%ld", i);
| ^~~~~~~~~
arch/powerpc/platforms/pseries/lpar.c:2024:17: note: 'sprintf' output between 6 and 25 bytes into a destination of size 16
2024 | sprintf(name, "cpu-%ld", i);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
arch/powerpc/platforms/cell/iommu.c: In function 'cell_iommu_alloc':
>> arch/powerpc/platforms/cell/iommu.c:654:58: error: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 3 [-Werror=format-truncation=]
654 | snprintf(iommu->name, sizeof(iommu->name), "iommu%d", i);
| ^~
arch/powerpc/platforms/cell/iommu.c:654:52: note: directive argument in the range [-2147483648, 1]
654 | snprintf(iommu->name, sizeof(iommu->name), "iommu%d", i);
| ^~~~~~~~~
arch/powerpc/platforms/cell/iommu.c:654:9: note: 'snprintf' output between 7 and 17 bytes into a destination of size 8
654 | snprintf(iommu->name, sizeof(iommu->name), "iommu%d", i);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
arch/powerpc/platforms/ps3/setup.c: In function 'ps3_setup_arch':
>> arch/powerpc/platforms/ps3/setup.c:229:24: error: '%u' directive output may be truncated writing between 1 and 5 bytes into a region of size between 4 and 12 [-Werror=format-truncation=]
229 | "%u.%u.%u", ps3_firmware_version.major,
| ^~
arch/powerpc/platforms/ps3/setup.c:229:17: note: directive argument in the range [0, 65535]
229 | "%u.%u.%u", ps3_firmware_version.major,
| ^~~~~~~~~~
arch/powerpc/platforms/ps3/setup.c:228:9: note: 'snprintf' output between 6 and 18 bytes into a destination of size 16
228 | snprintf(ps3_firmware_version_str, sizeof(ps3_firmware_version_str),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
229 | "%u.%u.%u", ps3_firmware_version.major,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
230 | ps3_firmware_version.minor, ps3_firmware_version.rev);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
arch/powerpc/sysdev/xive/common.c: In function 'xive_core_debugfs_create':
>> arch/powerpc/sysdev/xive/common.c:1845:50: error: '%ld' directive output may be truncated writing between 1 and 20 bytes into a region of size 13 [-Werror=format-truncation=]
1845 | snprintf(name, sizeof(name), "cpu%ld", cpu);
| ^~~
arch/powerpc/sysdev/xive/common.c:1845:46: note: directive argument in the range [-9223372036854775808, 4294967294]
1845 | snprintf(name, sizeof(name), "cpu%ld", cpu);
| ^~~~~~~~
arch/powerpc/sysdev/xive/common.c:1845:17: note: 'snprintf' output between 5 and 24 bytes into a destination of size 16
1845 | snprintf(name, sizeof(name), "cpu%ld", cpu);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
vim +2024 arch/powerpc/platforms/pseries/lpar.c
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2010
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2011 static int __init vpa_debugfs_init(void)
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2012 {
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2013 char name[16];
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2014 long i;
11dd34f3eae5a4 YueHaibing 2019-02-18 2015 struct dentry *vpa_dir;
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2016
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2017 if (!firmware_has_feature(FW_FEATURE_SPLPAR))
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2018 return 0;
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2019
dbf77fed8b302e Aneesh Kumar K.V 2021-08-12 2020 vpa_dir = debugfs_create_dir("vpa", arch_debugfs_dir);
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2021
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2022 /* set up the per-cpu vpa file*/
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 2023 for_each_possible_cpu(i) {
c6c26fb55e8e4b Aravinda Prasad 2018-10-16 @2024 sprintf(name, "cpu-%ld", i);
:::::: The code at line 2024 was first introduced by commit
:::::: c6c26fb55e8e4b3fc376be5611685990a17de27a powerpc/pseries: Export raw per-CPU VPA data via debugfs
:::::: TO: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
:::::: CC: Michael Ellerman <mpe@ellerman.id.au>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2023-08-22 3:24 [linux-next:master 11118/11453] arch/powerpc/platforms/pseries/lpar.c:2024:36: error: '%ld' directive writing between 1 and 20 bytes into a region of size 12 kernel test robot
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