linux-kernel - [paulmck-rcu:mmap_sem.2023.10.18a 31/31] ld.lld: error: undefined symbol: __bad

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Message-ID: <202310240930.H14JVILQ-lkp@intel.com>
Date:   Tue, 24 Oct 2023 09:21:44 +0800
From:   kernel test robot <lkp@...el.com>
To:     Suren Baghdasaryan <surenb@...gle.com>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [paulmck-rcu:mmap_sem.2023.10.18a 31/31] ld.lld: error: undefined
 symbol: __bad_udelay

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git mmap_sem.2023.10.18a
head:   4015256f2bc734d4175381762282784597f41cfa
commit: 4015256f2bc734d4175381762282784597f41cfa [31/31] EXP TESTING: introduce delay between getting a VMA and using it in show_map
config: arm-ixp4xx_defconfig (https://download.01.org/0day-ci/archive/20231024/202310240930.H14JVILQ-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231024/202310240930.H14JVILQ-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310240930.H14JVILQ-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: __bad_udelay
   >>> referenced by task_mmu.c
   >>>               fs/proc/task_mmu.o:(show_map) in archive vmlinux.a

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