fs/jbd2/journal.o: warning: objtool: get_slab()+0x3c: unreachable instruction

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   42f82040ee66db13525dc6f14b8559890b2f4c1c
commit: 0887a7ebc97770c7870abf3075a2e8cd502a7f52 ubsan: add trap instrumentation option
date:   3 months ago
config: x86_64-randconfig-m031-20200710 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0

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

All warnings (new ones prefixed by >>):

>> fs/jbd2/journal.o: warning: objtool: get_slab()+0x3c: unreachable instruction
--
>> net/sunrpc/clnt.o: warning: objtool: call_allocate()+0x11d: unreachable instruction

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

Attachment: .config.gz
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