linux-kernel - powerpc-linux-ld: warning: orphan section `.bss..Lubsan_data48' from `fs/overlayfs/copy_up.o' being placed in section `.bss..Lubsan

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Message-ID: <202207282314.3Tt0twgo-lkp@intel.com>
Date:   Thu, 28 Jul 2022 23:14:06 +0800
From:   kernel test robot <lkp@...el.com>
To:     Christian Brauner <brauner@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Miklos Szeredi <mszeredi@...hat.com>,
        Amir Goldstein <amir73il@...il.com>
Subject: powerpc-linux-ld: warning: orphan section `.bss..Lubsan_data48' from
 `fs/overlayfs/copy_up.o' being placed in section `.bss..Lubsan_data48'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6e7765cb477a9753670d4351d14de93f1e9dbbd4
commit: bc70682a497c4f3c968c552e465d1d9948b1ff4c ovl: support idmapped layers
date:   3 months ago
config: powerpc-randconfig-r013-20220728 (https://download.01.org/0day-ci/archive/20220728/202207282314.3Tt0twgo-lkp@intel.com/config)
compiler: powerpc-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=bc70682a497c4f3c968c552e465d1d9948b1ff4c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout bc70682a497c4f3c968c552e465d1d9948b1ff4c
        # 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=powerpc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> powerpc-linux-ld: warning: orphan section `.bss..Lubsan_data48' from `fs/overlayfs/copy_up.o' being placed in section `.bss..Lubsan_data48'
>> powerpc-linux-ld: warning: orphan section `.bss..Lubsan_data48' from `fs/overlayfs/copy_up.o' being placed in section `.bss..Lubsan_data48'
>> powerpc-linux-ld: warning: orphan section `.bss..Lubsan_data48' from `fs/overlayfs/copy_up.o' being placed in section `.bss..Lubsan_data48'

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp