From: kernel test robot <lkp@intel.com>
To: Bradley Morgan <brads@mainlining.org>
Cc: oe-kbuild-all@lists.linux.dev, "Paul E. McKenney" <paulmck@kernel.org>
Subject: [paulmckrcu:dev.2026.09.18a 24/34] ERROR: modpost: fs/btrfs/btrfs.ko: symbol 'cmpxchg_emu_u8' undefined!
Date: Thu, 01 Oct 2026 00:48:44 +0800 [thread overview]
Message-ID: <202610010054.roP05vYH-lkp@intel.com> (raw)
tree: https://github.com/paulmckrcu/linux dev.2026.09.18a
head: 90599c372e13369d11f6c1a01ff0094b16f72cf8
commit: c98d10b438b5626edb3f4e06f4f62bcb6ed6fe90 [24/34] lib: Add two-byte cmpxchg emulation function
config: xtensa-randconfig-1001-20260930 (https://download.01.org/0day-ci/archive/20261001/202610010054.roP05vYH-lkp@intel.com/config)
compiler: xtensa-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261001/202610010054.roP05vYH-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610010054.roP05vYH-lkp@intel.com/
All errors (new ones prefixed by >>, old ones prefixed by <<):
>> ERROR: modpost: fs/btrfs/btrfs.ko: symbol 'cmpxchg_emu_u8' undefined!
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-09-30 16:49 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-30 16:48 kernel test robot [this message]
2026-09-30 17:07 ` [paulmckrcu:dev.2026.09.18a 24/34] ERROR: modpost: fs/btrfs/btrfs.ko: symbol 'cmpxchg_emu_u8' undefined! Bradley Morgan
2026-09-30 17:39 ` Paul E. McKenney
2026-09-30 17:41 ` Bradley Morgan
2026-09-30 17:51 ` Paul E. McKenney
2026-09-30 17:54 ` Bradley Morgan
2026-09-30 19:11 ` Paul E. McKenney
2026-09-30 19:14 ` Bradley Morgan
2026-09-30 20:04 ` Paul E. McKenney
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