tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   42595ce90b9d4a6b9d8c5a1ea78da4eeaf7e086a
commit: e33a814e772cdc36436c8c188d8c42d019fda639 scripts/dtc: Remove redundant YYLOC global declaration
date:   4 days ago
config: arm-randconfig-a001-20200401 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 5227fa0c72ce55927cf4849160acb00442489937)
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout e33a814e772cdc36436c8c188d8c42d019fda639
        # save the attached .config to linux build tree
        COMPILER=clang make.cross ARCH=arm 

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

All warnings (new ones prefixed by >>):

>> ld.lld: warning: lld uses blx instruction, no object with architecture supporting feature detected

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