[tip:x86/cpufeature 6/6] arch/x86/kernel/cpu/intel.c:87:8: error: expected ';' before ':' token

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
x86/cpufeature
head:   2fc70d88d85d55e85bad7fde0ee71f79e22bfa3f
commit: 2fc70d88d85d55e85bad7fde0ee71f79e22bfa3f [6/6] x86/cpufeature: Enable 
RING3MWAIT for Knights Mill
config: i386-randconfig-x004-201705 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        git checkout 2fc70d88d85d55e85bad7fde0ee71f79e22bfa3f
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   arch/x86/kernel/cpu/intel.c: In function 'probe_xeon_phi_r3mwait':
>> arch/x86/kernel/cpu/intel.c:87:8: error: expected ';' before ':' token
      break:
           ^

vim +87 arch/x86/kernel/cpu/intel.c

    81           */
    82          if (c->x86 != 6)
    83                  return;
    84          switch (c->x86_model) {
    85          case INTEL_FAM6_XEON_PHI_KNL:
    86          case INTEL_FAM6_XEON_PHI_KNM:
  > 87                  break:
    88          default:
    89                  return;
    90          }

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

.config.gz
Description: application/gzip