Hi Wujie, kernel test robot noticed the following build errors: [auto build test ERROR on linus/master] [also build test ERROR on v6.7-rc3 next-20231130] [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/Wujie-Duan/Mark-symbols-static-where-possible-for-mips-kernel/20231128-152256 base: linus/master patch link: https://lore.kernel.org/r/20231128071225.801111-1-wjduan%40linx-info.com patch subject: [PATCH] Mark symbols static where possible for mips/kernel config: mips-cavium_octeon_defconfig (https://download.01.org/0day-ci/archive/20231130/202311301824.pu39T7C9-lkp@xxxxxxxxx/config) compiler: mips64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231130/202311301824.pu39T7C9-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202311301824.pu39T7C9-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): mips64-linux-ld: arch/mips/kernel/signal_n32.o: in function `setup_rt_frame_n32': >> arch/mips/kernel/signal_n32.c:109:(.text+0xb8): undefined reference to `setup_sigcontext' vim +109 arch/mips/kernel/signal_n32.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 91 81d103bf806786 Richard Weinberger 2013-10-06 92 static int setup_rt_frame_n32(void *sig_return, struct ksignal *ksig, 81d103bf806786 Richard Weinberger 2013-10-06 93 struct pt_regs *regs, sigset_t *set) ^1da177e4c3f41 Linus Torvalds 2005-04-16 94 { 9bbf28a36cae08 Atsushi Nemoto 2006-02-01 95 struct rt_sigframe_n32 __user *frame; ^1da177e4c3f41 Linus Torvalds 2005-04-16 96 int err = 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 97 7c4f563507c33c Richard Weinberger 2014-03-05 98 frame = get_sigframe(ksig, regs, sizeof(*frame)); 96d4f267e40f95 Linus Torvalds 2019-01-03 99 if (!access_ok(frame, sizeof (*frame))) 81d103bf806786 Richard Weinberger 2013-10-06 100 return -EFAULT; ^1da177e4c3f41 Linus Torvalds 2005-04-16 101 ^1da177e4c3f41 Linus Torvalds 2005-04-16 102 /* Create siginfo. */ 81d103bf806786 Richard Weinberger 2013-10-06 103 err |= copy_siginfo_to_user32(&frame->rs_info, &ksig->info); ^1da177e4c3f41 Linus Torvalds 2005-04-16 104 ^1da177e4c3f41 Linus Torvalds 2005-04-16 105 /* Create the ucontext. */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 106 err |= __put_user(0, &frame->rs_uc.uc_flags); ^1da177e4c3f41 Linus Torvalds 2005-04-16 107 err |= __put_user(0, &frame->rs_uc.uc_link); ea536ad4f231a0 Al Viro 2012-12-23 108 err |= __compat_save_altstack(&frame->rs_uc.uc_stack, regs->regs[29]); ^1da177e4c3f41 Linus Torvalds 2005-04-16 @109 err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext); 431dc8040354db Ralf Baechle 2007-02-13 110 err |= __copy_conv_sigset_to_user(&frame->rs_uc.uc_sigmask, set); ^1da177e4c3f41 Linus Torvalds 2005-04-16 111 ^1da177e4c3f41 Linus Torvalds 2005-04-16 112 if (err) 81d103bf806786 Richard Weinberger 2013-10-06 113 return -EFAULT; ^1da177e4c3f41 Linus Torvalds 2005-04-16 114 ^1da177e4c3f41 Linus Torvalds 2005-04-16 115 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 116 * Arguments to signal handler: ^1da177e4c3f41 Linus Torvalds 2005-04-16 117 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 118 * a0 = signal number ^1da177e4c3f41 Linus Torvalds 2005-04-16 119 * a1 = 0 (should be cause) ^1da177e4c3f41 Linus Torvalds 2005-04-16 120 * a2 = pointer to ucontext ^1da177e4c3f41 Linus Torvalds 2005-04-16 121 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 122 * $25 and c0_epc point to the signal handler, $29 points to ^1da177e4c3f41 Linus Torvalds 2005-04-16 123 * the struct rt_sigframe. ^1da177e4c3f41 Linus Torvalds 2005-04-16 124 */ 81d103bf806786 Richard Weinberger 2013-10-06 125 regs->regs[ 4] = ksig->sig; ^1da177e4c3f41 Linus Torvalds 2005-04-16 126 regs->regs[ 5] = (unsigned long) &frame->rs_info; ^1da177e4c3f41 Linus Torvalds 2005-04-16 127 regs->regs[ 6] = (unsigned long) &frame->rs_uc; ^1da177e4c3f41 Linus Torvalds 2005-04-16 128 regs->regs[29] = (unsigned long) frame; d814c28ceca8f6 David Daney 2010-02-18 129 regs->regs[31] = (unsigned long) sig_return; 81d103bf806786 Richard Weinberger 2013-10-06 130 regs->cp0_epc = regs->regs[25] = (unsigned long) ksig->ka.sa.sa_handler; ^1da177e4c3f41 Linus Torvalds 2005-04-16 131 722bb63de630f9 Franck Bui-Huu 2007-02-05 132 DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n", ^1da177e4c3f41 Linus Torvalds 2005-04-16 133 current->comm, current->pid, ^1da177e4c3f41 Linus Torvalds 2005-04-16 134 frame, regs->cp0_epc, regs->regs[31]); 722bb63de630f9 Franck Bui-Huu 2007-02-05 135 7b3e2fc847c832 Ralf Baechle 2006-02-08 136 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 137 } 151fd6acd94e12 Ralf Baechle 2007-02-15 138 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki