drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c:90:25: warning: 'strncpy' specified bound depends on the length of the source argument
From: kernel test robot
Date: Wed Feb 22 2023 - 00:56:04 EST
Hi Huazhong,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2
commit: 1556ea9120ffcf4faf7ac6b62a6e28216f260a23 net: hns3: refactor dump mac list of debugfs
date: 1 year, 9 months ago
config: ia64-randconfig-r024-20230222 (https://download.01.org/0day-ci/archive/20230222/202302221354.9qkB7bev-lkp@xxxxxxxxx/config)
compiler: ia64-linux-gcc (GCC) 12.1.0
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
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1556ea9120ffcf4faf7ac6b62a6e28216f260a23
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 1556ea9120ffcf4faf7ac6b62a6e28216f260a23
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/net/ethernet/hisilicon/hns3/hns3pf/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302221354.9qkB7bev-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
In file included from arch/ia64/include/asm/pgtable.h:154,
from include/linux/pgtable.h:6,
from include/linux/mm.h:33,
from include/linux/bvec.h:14,
from include/linux/skbuff.h:17,
from include/linux/if_ether.h:19,
from include/linux/etherdevice.h:20,
from drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:7,
from drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c:6:
arch/ia64/include/asm/mmu_context.h: In function 'reload_context':
arch/ia64/include/asm/mmu_context.h:127:48: warning: variable 'old_rr4' set but not used [-Wunused-but-set-variable]
127 | unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4;
| ^~~~~~~
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c: In function 'hclge_dbg_fill_content.constprop':
>> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c:90:25: warning: 'strncpy' specified bound depends on the length of the source argument [-Wstringop-truncation]
90 | strncpy(pos, items[i].name, strlen(items[i].name));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c:88:25: warning: 'strncpy' specified bound depends on the length of the source argument [-Wstringop-truncation]
88 | strncpy(pos, result[i], strlen(result[i]));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/strncpy +90 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
77
78 static void hclge_dbg_fill_content(char *content, u16 len,
79 const struct hclge_dbg_item *items,
80 const char **result, u16 size)
81 {
82 char *pos = content;
83 u16 i;
84
85 memset(content, ' ', len);
86 for (i = 0; i < size; i++) {
87 if (result)
88 strncpy(pos, result[i], strlen(result[i]));
89 else
> 90 strncpy(pos, items[i].name, strlen(items[i].name));
91 pos += strlen(items[i].name) + items[i].interval;
92 }
93 *pos++ = '\n';
94 *pos++ = '\0';
95 }
96
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests