Re: [RESEND PATCH 2/2] delayacct: Add a proc file to dump the delay info

[kernel test robot]

Hi brookxu,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.12-rc7 next-20210413]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/brookxu/delayacct-refactor-the-code-to-simplify-the-implementation/20210413-093934
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 89698becf06d341a700913c3d89ce2a914af69a2
config: arm-randconfig-r005-20210413 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9829f5e6b1bca9b61efc629770d28bb9014dec45)
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
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/0day-ci/linux/commit/7023a409dec95195a0e3360a36e8cb66363a9457
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review brookxu/delayacct-refactor-the-code-to-simplify-the-implementation/20210413-093934
        git checkout 7023a409dec95195a0e3360a36e8cb66363a9457
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

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: warning: lld uses blx instruction, no object with architecture supporting feature detected
   ld.lld: warning: lld uses blx instruction, no object with architecture supporting feature detected
>> ld.lld: error: undefined symbol: __aeabi_uldivmod
   >>> referenced by delayacct.c
   >>>               delayacct.o:(proc_delayacct_show) in archive kernel/built-in.a
   >>> referenced by delayacct.c
   >>>               delayacct.o:(proc_delayacct_show) in archive kernel/built-in.a
   >>> referenced by delayacct.c
   >>>               delayacct.o:(proc_delayacct_show) in archive kernel/built-in.a
   >>> did you mean: __aeabi_uidivmod
   >>> defined in: arch/arm/lib/lib.a(lib1funcs.o)

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

Attachment: .config.gz
Description: application/gzip