linux-kernel - ERROR: modpost: "__delay" [drivers/net/mdio/mdio-cavium.ko] undefined!

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Date: Sun, 24 Mar 2024 04:39:11 +0800
From: kernel test robot <lkp@...el.com>
To: Masahiro Yamada <masahiroy@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: ERROR: modpost: "__delay" [drivers/net/mdio/mdio-cavium.ko]
 undefined!

Hi Masahiro,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   484193fecd2b6349a6fd1554d306aec646ae1a6a
commit: fc93a4cdce1db7568fcdff608924324f5754efe5 kbuild: make *.mod not depend on *.o
date:   1 year, 11 months ago
config: sh-randconfig-002-20240323 (https://download.01.org/0day-ci/archive/20240324/202403240422.Abh1O9vI-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240324/202403240422.Abh1O9vI-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/202403240422.Abh1O9vI-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

ERROR: modpost: missing MODULE_LICENSE() in drivers/iio/afe/iio-rescale.o
>> ERROR: modpost: "__delay" [drivers/net/mdio/mdio-cavium.ko] undefined!

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