linux-kernel - undefined reference to `ftrace_likely

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Date:   Sat, 11 Mar 2023 16:46:29 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: undefined reference to `ftrace_likely_update'

Hi Kees,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ef5f68cc1f829b492b19cd4df5af4454aa816b93
commit: 54d9469bc515dc5fcbc20eecbe19cea868b70d68 fortify: Add run-time WARN for cross-field memcpy()
date:   6 months ago
config: s390-randconfig-r031-20230311 (https://download.01.org/0day-ci/archive/20230311/202303111625.5L2nwDp2-lkp@intel.com/config)
compiler: s390-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=54d9469bc515dc5fcbc20eecbe19cea868b70d68
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 54d9469bc515dc5fcbc20eecbe19cea868b70d68
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303111625.5L2nwDp2-lkp@intel.com/

All errors (new ones prefixed by >>):

   s390-linux-ld: arch/s390/purgatory/purgatory: in function `sha256_update':
>> (.text+0x248c): undefined reference to `ftrace_likely_update'
>> s390-linux-ld: (.text+0x24a4): undefined reference to `ftrace_likely_update'
   s390-linux-ld: (.text+0x24bc): undefined reference to `ftrace_likely_update'
   s390-linux-ld: (.text+0x29b4): undefined reference to `ftrace_likely_update'
   s390-linux-ld: (.text+0x29cc): undefined reference to `ftrace_likely_update'
   s390-linux-ld: arch/s390/purgatory/purgatory:(.text+0x29e4): more undefined references to `ftrace_likely_update' follow

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests