tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   3cc2bd440f2171f093b3a8480a4b54d8c270ed38
commit: a95e1acb4b30da8b0cc96bc90c815162ab91b538 [12467/13205] ubsan: remove UBSAN_MISC in favor of individual options
config: mips-randconfig-r012-20201209 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 5ff35356f1af2bb92785b38c657463924d9ec386)
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 mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a95e1acb4b30da8b0cc96bc90c815162ab91b538
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout a95e1acb4b30da8b0cc96bc90c815162ab91b538
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips 

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

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

>> WARNING: modpost: vmlinux.o(.text+0x1e10e): Section mismatch in reference from the variable $BB2_91 to the function .init.text:loongson2_sc_init()
The function $BB2_91() references
the function __init loongson2_sc_init().
This is often because $BB2_91 lacks a __init
annotation or the annotation of loongson2_sc_init is wrong.
--
>> WARNING: modpost: vmlinux.o(.text+0x1e11c): Section mismatch in reference from the variable $BB2_91 to the function .init.text:loongson3_sc_init()
The function $BB2_91() references
the function __init loongson3_sc_init().
This is often because $BB2_91 lacks a __init
annotation or the annotation of loongson3_sc_init is wrong.

The below error/warnings are from parent commit:
<< WARNING: modpost: vmlinux.o(.text+0x22b5c): Section mismatch in reference from the variable $BB2_94 to the function .init.text:loongson2_sc_init()
<< WARNING: modpost: vmlinux.o(.text+0x22b6a): Section mismatch in reference from the variable $BB2_94 to the function .init.text:loongson3_sc_init()
<< WARNING: modpost: vmlinux.o(.text+0x3fca6): Section mismatch in reference from the function mips_sc_init() to the function .init.text:mips_sc_probe()
<< WARNING: modpost: vmlinux.o(.text+0x22b5c): Section mismatch in reference from the variable $BB2_94 to the function .init.text:loongson2_sc_init()
<< WARNING: modpost: vmlinux.o(.text+0x22b6a): Section mismatch in reference from the variable $BB2_94 to the function .init.text:loongson3_sc_init()
<< WARNING: modpost: vmlinux.o(.text+0x3fca6): Section mismatch in reference from the function mips_sc_init() to the function .init.text:mips_sc_probe()

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