Hi Christophe, kernel test robot noticed the following build errors:
[auto build test ERROR on powerpc/next] [also build test ERROR on powerpc/fixes linus/master v6.4-rc7 next-20230621] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Christophe-Leroy/powerpc-ptrace-Split-gpr32_set_common/20230621-183932 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next patch link: https://lore.kernel.org/r/3086d189fa629e6c7bf800832921669450cc09bf.1687343697.git.christophe.leroy%40csgroup.eu patch subject: [PATCH] powerpc/ptrace: Split gpr32_set_common config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20230621/202306211940.y4kihsei-...@intel.com/config) compiler: powerpc-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230621/202306211940.y4kihsei-...@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202306211940.y4kihsei-...@intel.com/ All errors (new ones prefixed by >>): >> arch/powerpc/kernel/ptrace/ptrace-view.c:719:5: error: no previous prototype >> for 'gpr32_set_common_kernel' [-Werror=missing-prototypes] 719 | int gpr32_set_common_kernel(struct task_struct *target, | ^~~~~~~~~~~~~~~~~~~~~~~ >> arch/powerpc/kernel/ptrace/ptrace-view.c:757:5: error: no previous prototype >> for 'gpr32_set_common_user' [-Werror=missing-prototypes] 757 | int gpr32_set_common_user(struct task_struct *target, | ^~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/gpr32_set_common_kernel +719 arch/powerpc/kernel/ptrace/ptrace-view.c 718 > 719 int gpr32_set_common_kernel(struct task_struct *target, 720 const struct user_regset *regset, 721 unsigned int pos, unsigned int count, 722 const void *kbuf, unsigned long *regs) 723 { 724 const compat_ulong_t *k = kbuf; 725 726 pos /= sizeof(compat_ulong_t); 727 count /= sizeof(compat_ulong_t); 728 729 for (; count > 0 && pos < PT_MSR; --count) 730 regs[pos++] = *k++; 731 732 if (count > 0 && pos == PT_MSR) { 733 set_user_msr(target, *k++); 734 ++pos; 735 --count; 736 } 737 738 for (; count > 0 && pos <= PT_MAX_PUT_REG; --count) 739 regs[pos++] = *k++; 740 for (; count > 0 && pos < PT_TRAP; --count, ++pos) 741 ++k; 742 743 if (count > 0 && pos == PT_TRAP) { 744 set_user_trap(target, *k++); 745 ++pos; 746 --count; 747 } 748 749 kbuf = k; 750 pos *= sizeof(compat_ulong_t); 751 count *= sizeof(compat_ulong_t); 752 user_regset_copyin_ignore(&pos, &count, &kbuf, NULL, 753 (PT_TRAP + 1) * sizeof(compat_ulong_t), -1); 754 return 0; 755 } 756 > 757 int gpr32_set_common_user(struct task_struct *target, 758 const struct user_regset *regset, 759 unsigned int pos, unsigned int count, 760 const void __user *ubuf, unsigned long *regs) 761 { 762 const compat_ulong_t __user *u = ubuf; 763 compat_ulong_t reg; 764 765 if (!user_read_access_begin(u, count)) 766 return -EFAULT; 767 768 pos /= sizeof(reg); 769 count /= sizeof(reg); 770 771 for (; count > 0 && pos < PT_MSR; --count) { 772 unsafe_get_user(reg, u++, Efault); 773 regs[pos++] = reg; 774 } 775 776 if (count > 0 && pos == PT_MSR) { 777 unsafe_get_user(reg, u++, Efault); 778 set_user_msr(target, reg); 779 ++pos; 780 --count; 781 } 782 783 for (; count > 0 && pos <= PT_MAX_PUT_REG; --count) { 784 unsafe_get_user(reg, u++, Efault); 785 regs[pos++] = reg; 786 } 787 for (; count > 0 && pos < PT_TRAP; --count, ++pos) 788 unsafe_get_user(reg, u++, Efault); 789 790 if (count > 0 && pos == PT_TRAP) { 791 unsafe_get_user(reg, u++, Efault); 792 set_user_trap(target, reg); 793 ++pos; 794 --count; 795 } 796 user_read_access_end(); 797 798 ubuf = u; 799 pos *= sizeof(reg); 800 count *= sizeof(reg); 801 user_regset_copyin_ignore(&pos, &count, NULL, &ubuf, 802 (PT_TRAP + 1) * sizeof(reg), -1); 803 return 0; 804 805 Efault: 806 user_read_access_end(); 807 return -EFAULT; 808 } 809 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
