[kbuild-all] [luto:sched/lazymm 9/10] arch/x86/events/core.c:2780:8: error: implicit declaration of function 'nmi_uaccess_ok'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git sched/lazymm head: ecc3992c36cb88087df9c537e2326efb51c95e31 commit: 1211e1eda2ec9d4ed78a480d8a795dce3312f80c [9/10] x86/events, x86/insn-eval: Remove incorrect active_mm references config: x86_64-randconfig-b001-20210617 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401) 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/luto/linux.git/commit/?id... git remote add luto https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git git fetch --no-tags luto sched/lazymm git checkout 1211e1eda2ec9d4ed78a480d8a795dce3312f80c # 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(a)intel.com&gt; All errors (new ones prefixed by >>): if (!nmi_uaccess_ok()) ^ arch/x86/events/core.c:2780:8: note: did you mean 'nmi_uaccess_okay'? arch/x86/include/asm/tlbflush.h:159:6: note: 'nmi_uaccess_okay' declared here bool nmi_uaccess_okay(void); ^ 1 error generated. -- if (!nmi_uaccess_ok()) ^ arch/x86/lib/insn-eval.c:616:8: note: did you mean 'nmi_uaccess_okay'? arch/x86/include/asm/tlbflush.h:159:6: note: 'nmi_uaccess_okay' declared here bool nmi_uaccess_okay(void); ^ 1 error generated. vim +/nmi_uaccess_ok +2780 arch/x86/events/core.c 2766 2767 static unsigned long get_segment_base(unsigned int segment) 2768 { 2769 struct desc_struct *desc; 2770 unsigned int idx = segment >> 3; 2771 2772 if ((segment & SEGMENT_TI_MASK) == SEGMENT_LDT) { 2773 #ifdef CONFIG_MODIFY_LDT_SYSCALL 2774 struct ldt_struct *ldt; 2775 2776 /* 2777 * If we're not in a valid context with a real (not just lazy) 2778 * user mm, then don't even try. 2779 */ 2781 return 0; 2782 2783 /* IRQs are off, so this synchronizes with smp_store_release */ 2784 ldt = READ_ONCE(current->mm->context.ldt); 2785 if (!ldt || idx >= ldt->nr_entries) 2786 return 0; 2787 2788 desc = &ldt->entries[idx]; 2789 #else 2790 return 0; 2791 #endif 2792 } else { 2793 if (idx >= GDT_ENTRIES) 2794 return 0; 2795 2796 desc = raw_cpu_ptr(gdt_page.gdt) + idx; 2797 } 2798 2799 return get_desc_base(desc); 2800 } 2801 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org