[kbuild-all] [luto:sched/lazymm 9/10] arch/x86/lib/insn-eval.c:616:8: error: implicit declaration of function 'nmi_uaccess_ok'; did you mean 'nmi_uaccess_okay'?

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: i386-randconfig-r016-20210617 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # 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 make W=1 ARCH=i386 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 >>): arch/x86/lib/insn-eval.c: In function 'get_desc': 616 | if (!nmi_uaccess_ok()) | ^~~~~~~~~~~~~~ | nmi_uaccess_okay cc1: some warnings being treated as errors -- arch/x86/events/core.c: In function 'get_segment_base': 2780 | if (!nmi_uaccess_ok()) | ^~~~~~~~~~~~~~ | nmi_uaccess_okay cc1: some warnings being treated as errors vim +616 arch/x86/lib/insn-eval.c 584 585 /** 586 * get_desc() - Obtain contents of a segment descriptor 587 * @out: Segment descriptor contents on success 588 * @sel: Segment selector 589 * 590 * Given a segment selector, obtain a pointer to the segment descriptor. 591 * Both global and local descriptor tables are supported. 592 * 593 * Returns: 594 * 595 * True on success, false on failure. 596 * 597 * NULL on error. 598 */ 599 static bool get_desc(struct desc_struct *out, unsigned short sel) 600 { 601 struct desc_ptr gdt_desc = {0, 0}; 602 unsigned long desc_base; 603 604 #ifdef CONFIG_MODIFY_LDT_SYSCALL 605 if ((sel & SEGMENT_TI_MASK) == SEGMENT_LDT) { 606 bool success = false; 607 struct ldt_struct *ldt; 608 609 /* Bits [15:3] contain the index of the desired entry. */ 610 sel >>= 3; 611 612 /* 613 * If we're not in a valid context with a real (not just lazy) 614 * user mm, then don't even try. 615 */ 617 return false; 618 619 mutex_lock(&current->mm->context.lock); 620 ldt = current->mm->context.ldt; 621 if (ldt && sel < ldt->nr_entries) { 622 *out = ldt->entries[sel]; 623 success = true; 624 } 625 626 mutex_unlock(&current->mm->context.lock); 627 628 return success; 629 } 630 #endif 631 native_store_gdt(&gdt_desc); 632 633 /* 634 * Segment descriptors have a size of 8 bytes. Thus, the index is 635 * multiplied by 8 to obtain the memory offset of the desired descriptor 636 * from the base of the GDT. As bits [15:3] of the segment selector 637 * contain the index, it can be regarded as multiplied by 8 already. 638 * All that remains is to clear bits [2:0]. 639 */ 640 desc_base = sel & ~(SEGMENT_RPL_MASK | SEGMENT_TI_MASK); 641 642 if (desc_base > gdt_desc.size) 643 return false; 644 645 *out = *(struct desc_struct *)(gdt_desc.address + desc_base); 646 return true; 647 } 648 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org