[kbuild-all] [davidhildenbrand:cor_disable_irq 5/9] mm/memory.o: warning: objtool: __wp_page_copy()+0xbf5: unreachable instruction

CC: linux-kernel(a)vger.kernel.org TO: David Hildenbrand <david(a)redhat.com&gt; CC: Andrea Arcangeli <aarcange(a)redhat.com&gt; tree: git://github.com/davidhildenbrand/linux cor_disable_irq head: a082b9a0e2d8af4269bfb016270db0e7f0f3aa41 commit: e6e586614c24a37ec6ccfaa0afbe7e8d8f3eb901 [5/9] mm: support GUP-triggered unsharing via FAULT_FLAG_UNSHARE (!hugetlb) config: x86_64-randconfig-a011-20211216 (https://download.01.org/0day-ci/archive/20211216/202112162130.vuIzeg5C-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dd245bab9fbb364faa1581e4f92ba3119a872fba) 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://github.com/davidhildenbrand/linux/commit/e6e586614c24a37ec6ccfaa0... git remote add davidhildenbrand git://github.com/davidhildenbrand/linux git fetch --no-tags davidhildenbrand cor_disable_irq git checkout e6e586614c24a37ec6ccfaa0afbe7e8d8f3eb901 # 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 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org