Hi Michel, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.17-rc1 next-20220128] [cannot apply to tip/x86/mm arm64/for-next/core powerpc/next hnaz-mm/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Michel-Lespinasse/Speculative-page-faults/20220128-212122 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 145d9b498fc827b79c1260b4caa29a8e59d4c2b9 config: arm-randconfig-c002-20220124 (https://download.01.org/0day-ci/archive/20220129/202201290752.GKB0XPLn-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 33b45ee44b1f32ffdbc995e6fec806271b4b3ba4) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/0day-ci/linux/commit/d9d603df22594c13d340d1036653e0b039f975eb git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Michel-Lespinasse/Speculative-page-faults/20220128-212122 git checkout d9d603df22594c13d340d1036653e0b039f975eb # 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=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> mm/nommu.c:666:24: error: redefinition of 'find_vma' struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) ^ include/linux/mm.h:2759:24: note: previous definition is here struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) ^ 1 error generated. vim +/find_vma +666 mm/nommu.c 8feae13110d60cc David Howells 2009-01-08 661 8feae13110d60cc David Howells 2009-01-08 662 /* 8feae13110d60cc David Howells 2009-01-08 663 * look up the first VMA in which addr resides, NULL if none c1e8d7c6a7a682e Michel Lespinasse 2020-06-08 664 * - should be called with mm->mmap_lock at least held readlocked 8feae13110d60cc David Howells 2009-01-08 665 */ 8feae13110d60cc David Howells 2009-01-08 @666 struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) 8feae13110d60cc David Howells 2009-01-08 667 { 8feae13110d60cc David Howells 2009-01-08 668 struct vm_area_struct *vma; 8feae13110d60cc David Howells 2009-01-08 669 8feae13110d60cc David Howells 2009-01-08 670 /* check the cache first */ 615d6e8756c8714 Davidlohr Bueso 2014-04-07 671 vma = vmacache_find(mm, addr); 615d6e8756c8714 Davidlohr Bueso 2014-04-07 672 if (likely(vma)) 8feae13110d60cc David Howells 2009-01-08 673 return vma; 8feae13110d60cc David Howells 2009-01-08 674 e922c4c5360980b Namhyung Kim 2011-05-24 675 /* trawl the list (there may be multiple mappings in which addr 8feae13110d60cc David Howells 2009-01-08 676 * resides) */ e922c4c5360980b Namhyung Kim 2011-05-24 677 for (vma = mm->mmap; vma; vma = vma->vm_next) { 8feae13110d60cc David Howells 2009-01-08 678 if (vma->vm_start > addr) 8feae13110d60cc David Howells 2009-01-08 679 return NULL; 8feae13110d60cc David Howells 2009-01-08 680 if (vma->vm_end > addr) { 615d6e8756c8714 Davidlohr Bueso 2014-04-07 681 vmacache_update(addr, vma); 8feae13110d60cc David Howells 2009-01-08 682 return vma; 8feae13110d60cc David Howells 2009-01-08 683 } 8feae13110d60cc David Howells 2009-01-08 684 } 8feae13110d60cc David Howells 2009-01-08 685 8feae13110d60cc David Howells 2009-01-08 686 return NULL; 8feae13110d60cc David Howells 2009-01-08 687 } 8feae13110d60cc David Howells 2009-01-08 688 EXPORT_SYMBOL(find_vma); 8feae13110d60cc David Howells 2009-01-08 689 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
