Hi Xuefeng, Thank you for the patch! Yet something to improve: [auto build test ERROR on mmotm/master] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Xuefeng-Wang/mm-thp-rework-the-pmd-protect-changing-flow/20200117-115821 base: git://git.cmpxchg.org/linux-mmotm.git master config: nds32-defconfig (attached as .config) compiler: nds32le-linux-gcc (GCC) 9.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=9.2.0 make.cross ARCH=nds32 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from arch/nds32/include/asm/pgtable.h:394, from include/linux/mm.h:99, from include/linux/ring_buffer.h:5, from include/linux/trace_events.h:6, from include/trace/syscall.h:7, from include/linux/syscalls.h:85, from init/main.c:21: include/asm-generic/pgtable.h: In function '__pmdp_modify_prot_commit': >> include/asm-generic/pgtable.h:677:2: error: implicit declaration of function 'set_pmd_at'; did you mean 'set_pte_at'? [-Werror=implicit-function-declaration] 677 | set_pmd_at(vma->vm_mm, addr, pmdp, pmd); | ^~~~~~~~~~ | set_pte_at cc1: some warnings being treated as errors -- In file included from arch/nds32/include/asm/pgtable.h:394, from include/linux/mm.h:99, from arch/nds32/include/asm/uaccess.h:14, from include/linux/uaccess.h:11, from include/linux/sched/task.h:11, from include/linux/sched/signal.h:9, from include/linux/ptrace.h:7, from arch/nds32/kernel/signal.c:6: include/asm-generic/pgtable.h: In function '__pmdp_modify_prot_commit': >> include/asm-generic/pgtable.h:677:2: error: implicit declaration of function 'set_pmd_at'; did you mean 'set_pte_at'? [-Werror=implicit-function-declaration] 677 | set_pmd_at(vma->vm_mm, addr, pmdp, pmd); | ^~~~~~~~~~ | set_pte_at arch/nds32/kernel/signal.c: In function 'do_signal': arch/nds32/kernel/signal.c:362:20: warning: this statement may fall through [-Wimplicit-fallthrough=] 362 | regs->uregs[15] = __NR_restart_syscall; arch/nds32/kernel/signal.c:363:3: note: here 363 | case -ERESTARTNOHAND: | ^~~~ arch/nds32/kernel/signal.c: In function 'handle_signal': arch/nds32/kernel/signal.c:315:7: warning: this statement may fall through [-Wimplicit-fallthrough=] 315 | if (!(ksig->ka.sa.sa_flags & SA_RESTART)) { | ^ arch/nds32/kernel/signal.c:319:3: note: here 319 | case -ERESTARTNOINTR: | ^~~~ cc1: some warnings being treated as errors vim +677 include/asm-generic/pgtable.h 672 673 static inline void __pmdp_modify_prot_commit(struct vm_area_struct *vma, 674 unsigned long addr, 675 pmd_t *pmdp, pmd_t pmd) 676 { > 677 set_pmd_at(vma->vm_mm, addr, pmdp, pmd); 678 } 679 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
Attachment:
.config.gz
Description: application/gzip
