[kees:for-next/clang/pgo 1/6] mm/vmscan.o: warning: objtool: shrink_lruvec()+0xba0: sibling call from callable instruction with modified stack frame

[kernel test robot <lkp@intel.com>]

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TO: Sami Tolvanen <samitolvanen@google.com>
CC: Kees Cook <keescook@chromium.org>
CC: Bill Wendling <morbo@google.com>
CC: Nick Desaulniers <ndesaulniers@google.com>
CC: Fangrui Song <maskray@google.com>
CC: Nathan Chancellor <nathan@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/clang/pgo
head:   4356bc4c0425c81e204f561acf4dd0095544a6cb
commit: e1af496cbe9b4517428601a4e44fee3602dd3c15 [1/6] pgo: add clang's Profile Guided Optimization infrastructure
config: x86_64-randconfig-r015-20210625 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9ca0171a9ffdef5fdb1511d197a3fd72490362de)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?id=e1af496cbe9b4517428601a4e44fee3602dd3c15
        git remote add kees https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
        git fetch --no-tags kees for-next/clang/pgo
        git checkout e1af496cbe9b4517428601a4e44fee3602dd3c15
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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 >>):

>> mm/vmscan.o: warning: objtool: shrink_lruvec()+0xba0: sibling call from callable instruction with modified stack frame
--
>> drivers/net/dsa/b53/b53_srab.o: warning: objtool: b53_srab_probe()+0x685: unreachable instruction

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

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