tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   2c87f7a38f930ef6f6a7bdd04aeb82ce3971b54b
commit: 421015713b306e47af95d4d61cdfbd96d462e4cb ARM: 9017/2: Enable KASan for 
ARM
date:   4 months ago
config: arm-randconfig-r012-20210226 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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=421015713b306e47af95d4d61cdfbd96d462e4cb
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 421015713b306e47af95d4d61cdfbd96d462e4cb
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All warnings (new ones prefixed by >>):

   drivers/net/bonding/bond_options.c: In function 'bond_option_primary_set':
>> drivers/net/bonding/bond_options.c:1171:2: warning: 'strncpy' specified 
>> bound 16 equals destination size [-Wstringop-truncation]
    1171 |  strncpy(bond->params.primary, primary, IFNAMSIZ);
         |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
   drivers/net/wireless/atmel/atmel.c: In function 'atmel_ioctl':
>> drivers/net/wireless/atmel/atmel.c:2659:3: warning: 'strncpy' output may be 
>> truncated copying 31 bytes from a string of length 31 [-Wstringop-truncation]
    2659 |   strncpy(priv->firmware_id, com.id, 31);
         |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from 
drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.h:24,
                    from 
drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c:26:
   drivers/net/wireless/broadcom/brcm80211/brcmsmac/d11.h:786:1: warning: 
alignment 1 of 'struct d11txh' is less than 2 [-Wpacked-not-aligned]
     786 | } __packed;
         | ^
   drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c: In function 
'dma_attach':
>> drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c:587:2: warning: 
>> 'strncpy' specified bound 8 equals destination size [-Wstringop-truncation]
     587 |  strncpy(di->name, name, MAXNAMEL);
         |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/strncpy +1171 drivers/net/bonding/bond_options.c

0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1133  
f3253339a47ff3 stephen hemminger           2014-03-04  1134  static int 
bond_option_primary_set(struct bonding *bond,
28f084cca35a73 stephen hemminger           2014-03-06  1135                     
           const struct bond_opt_value *newval)
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1136  {
180222f08861d8 Nikolay Aleksandrov         2014-01-22  1137     char *p, 
*primary = newval->string;
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1138     struct 
list_head *iter;
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1139     struct slave 
*slave;
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1140  
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1141     
block_netpoll_tx();
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1142  
180222f08861d8 Nikolay Aleksandrov         2014-01-22  1143     p = 
strchr(primary, '\n');
180222f08861d8 Nikolay Aleksandrov         2014-01-22  1144     if (p)
180222f08861d8 Nikolay Aleksandrov         2014-01-22  1145             *p = 
'\0';
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1146     /* check to see 
if we are clearing primary */
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1147     if 
(!strlen(primary)) {
eac306b4adb745 Michael Dilmore             2017-06-26  1148             
netdev_dbg(bond->dev, "Setting primary slave to None\n");
059b47e8aaf997 Nikolay Aleksandrov         2014-09-09  1149             
RCU_INIT_POINTER(bond->primary_slave, NULL);
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1150             
memset(bond->params.primary, 0, sizeof(bond->params.primary));
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1151             
bond_select_active_slave(bond);
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1152             goto 
out;
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1153     }
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1154  
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1155     
bond_for_each_slave(bond, slave, iter) {
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1156             if 
(strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) {
f887e54ce34906 Jarod Wilson                2019-06-07  1157                     
slave_dbg(bond->dev, slave->dev, "Setting as primary slave\n");
059b47e8aaf997 Nikolay Aleksandrov         2014-09-09  1158                     
rcu_assign_pointer(bond->primary_slave, slave);
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1159                     
strcpy(bond->params.primary, slave->dev->name);
eb55bbf865d997 Xiangning Yu                2018-06-07  1160                     
bond->force_primary = true;
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1161                     
bond_select_active_slave(bond);
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1162                     
goto out;
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1163             }
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1164     }
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1165  
059b47e8aaf997 Nikolay Aleksandrov         2014-09-09  1166     if 
(rtnl_dereference(bond->primary_slave)) {
eac306b4adb745 Michael Dilmore             2017-06-26  1167             
netdev_dbg(bond->dev, "Setting primary slave to None\n");
059b47e8aaf997 Nikolay Aleksandrov         2014-09-09  1168             
RCU_INIT_POINTER(bond->primary_slave, NULL);
c59ab673699b6d dingtianhong                2014-01-18  1169             
bond_select_active_slave(bond);
c59ab673699b6d dingtianhong                2014-01-18  1170     }
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15 @1171     
strncpy(bond->params.primary, primary, IFNAMSIZ);
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1172     
bond->params.primary[IFNAMSIZ - 1] = 0;
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1173  
f887e54ce34906 Jarod Wilson                2019-06-07  1174     
netdev_dbg(bond->dev, "Recording %s as primary, but it has not been enslaved 
yet\n",
f887e54ce34906 Jarod Wilson                2019-06-07  1175                
primary);
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1176  
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1177  out:
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1178     
unblock_netpoll_tx();
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1179  
180222f08861d8 Nikolay Aleksandrov         2014-01-22  1180     return 0;
0a98a0d12c40f9 sfel...@cumulusnetworks.com 2013-12-15  1181  }
8a41ae4496e534 sfel...@cumulusnetworks.com 2013-12-15  1182  

:::::: The code at line 1171 was first introduced by commit
:::::: 0a98a0d12c40f9354b942325045cae123d594341 bonding: add primary attribute 
netlink support

:::::: TO: sfel...@cumulusnetworks.com <sfel...@cumulusnetworks.com>
:::::: CC: David S. Miller <da...@davemloft.net>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

Attachment: .config.gz
Description: application/gzip

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