linux-kernel - [luto:sched/lazymm 12/17] idle.c:undefined reference to `unlazy_mm_irqs

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Message-ID: <202112291114.HDvxVLxl-lkp@intel.com>
Date:   Wed, 29 Dec 2021 11:53:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [luto:sched/lazymm 12/17] idle.c:undefined reference to
 `unlazy_mm_irqs_off'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git sched/lazymm
head:   fbea7977edc16ae85f8e2255b084bc2403801327
commit: a3d2a94bc79f367c31d3962f3957dfe0ded13b58 [12/17] Rework "sched/core: Fix illegal RCU from offline CPUs"
config: arm-randconfig-c002-20211229 (https://download.01.org/0day-ci/archive/20211229/202112291114.HDvxVLxl-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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/luto/linux.git/commit/?id=a3d2a94bc79f367c31d3962f3957dfe0ded13b58
        git remote add luto https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git
        git fetch --no-tags luto sched/lazymm
        git checkout a3d2a94bc79f367c31d3962f3957dfe0ded13b58
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   arm-linux-gnueabi-ld: kernel/sched/idle.o: in function `do_idle':
>> idle.c:(.text+0x348): undefined reference to `unlazy_mm_irqs_off'

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