[luto:sched/lazymm 11/16] ld.lld: error: undefined symbol: unlazy_mm_irqs_off

From: kernel test robot
Date: Mon Nov 22 2021 - 19:00:41 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git sched/lazymm
head: c0d03d4f2778fd0a7c16e69cdfb3f111296129b5
commit: 23ef8314367945e2dd63230fb1c2ebb7e148fe48 [11/16] Rework "sched/core: Fix illegal RCU from offline CPUs"
config: x86_64-randconfig-a002-20211116 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4c2cf3a314d9131b1b288e7c8ab0c75ac1b2be1d)
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=23ef8314367945e2dd63230fb1c2ebb7e148fe48
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 23ef8314367945e2dd63230fb1c2ebb7e148fe48
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: unlazy_mm_irqs_off
>>> referenced by idle.c:288 (kernel/sched/idle.c:288)
>>> sched/idle.o:(do_idle) in archive kernel/built-in.a

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

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