[linux-next:master 2186/5128] net/mptcp/sockopt.o: warning: objtool: mptcp_setsockopt()+0x1817: unreachable instruction

[linux-next:master 2186/5128] net/mptcp/sockopt.o: warning: objtool: mptcp_setsockopt()+0x1817: unreachable instruction

[kernel test robot]

CC: Linux Memory Management List <linux-mm@kvack.org>
TO: Florian Westphal <fw@strlen.de>
CC: Mat Martineau <mathew.j.martineau@linux.intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   7afeac307a9561e3a93682c1e7eb22f918aa1187
commit: c9406a23c1161c3a9a672d055ec840b00d730a6f [2186/5128] mptcp: sockopt: add SOL_IP freebind & transparent options
config: x86_64-randconfig-a015-20211205 (https://download.01.org/0day-ci/archive/20211205/202112051404.2Nfriz4e-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5f1d1854eb1450d352663ee732235893c5782237)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=c9406a23c1161c3a9a672d055ec840b00d730a6f
        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 c9406a23c1161c3a9a672d055ec840b00d730a6f
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash net/

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 >>):

>> net/mptcp/sockopt.o: warning: objtool: mptcp_setsockopt()+0x1817: unreachable instruction

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