[linux-stable-rc:linux-4.19.y 2397/4040] arch/powerpc/kernel/traps.c:1341:5: error: no previous prototype for 'is_valid_bugaddr'

[linux-stable-rc:linux-4.19.y 2397/4040] arch/powerpc/kernel/traps.c:1341:5: error: no previous prototype for 'is_valid_bugaddr'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
head:   5a3ba2f90f8789162a03e07a37224bab4c643d1d
commit: 57ac40ee09cea2ec90f71c6f49b15d0d82667b38 [2397/4040] powerpc: Drop -me200 addition to build flags
config: powerpc-randconfig-r004-20210810 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 10.3.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=57ac40ee09cea2ec90f71c6f49b15d0d82667b38
        git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
        git fetch --no-tags linux-stable-rc linux-4.19.y
        git checkout 57ac40ee09cea2ec90f71c6f49b15d0d82667b38
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> arch/powerpc/kernel/traps.c:1341:5: error: no previous prototype for 'is_valid_bugaddr' [-Werror=missing-prototypes]
    1341 | int is_valid_bugaddr(unsigned long addr)
         |     ^~~~~~~~~~~~~~~~
   arch/powerpc/kernel/traps.c:1880:6: error: no previous prototype for 'DebugException' [-Werror=missing-prototypes]
    1880 | void DebugException(struct pt_regs *regs, unsigned long debug_status)
         |      ^~~~~~~~~~~~~~
   arch/powerpc/kernel/traps.c:1993:6: error: no previous prototype for 'CacheLockingException' [-Werror=missing-prototypes]
    1993 | void CacheLockingException(struct pt_regs *regs, unsigned long address,
         |      ^~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
   arch/powerpc/kernel/smp.c:445:5: error: no previous prototype for '__smp_send_nmi_ipi' [-Werror=missing-prototypes]
     445 | int __smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us, bool safe)
         |     ^~~~~~~~~~~~~~~~~~
   arch/powerpc/kernel/smp.c:521:6: error: no previous prototype for 'tick_broadcast' [-Werror=missing-prototypes]
     521 | void tick_broadcast(const struct cpumask *mask)
         |      ^~~~~~~~~~~~~~
>> arch/powerpc/kernel/smp.c:531:6: error: no previous prototype for 'debugger_ipi_callback' [-Werror=missing-prototypes]
     531 | void debugger_ipi_callback(struct pt_regs *regs)
         |      ^~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
>> arch/powerpc/mm/fsl_booke_mmu.c:70:15: error: no previous prototype for 'tlbcam_sz' [-Werror=missing-prototypes]
      70 | unsigned long tlbcam_sz(int idx)
         |               ^~~~~~~~~
   cc1: all warnings being treated as errors
--
   In file included from arch/powerpc/xmon/xmon.c:67:
   arch/powerpc/xmon/dis-asm.h: In function 'print_insn_powerpc':
   arch/powerpc/xmon/dis-asm.h:20:13: error: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Werror=format=]
      20 |  printf("%.8x", insn);
         |          ~~~^   ~~~~
         |             |   |
         |             |   long unsigned int
         |             unsigned int
         |          %.8lx
   arch/powerpc/xmon/dis-asm.h: In function 'print_insn_spu':
   arch/powerpc/xmon/dis-asm.h:26:13: error: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Werror=format=]
      26 |  printf("%.8x", insn);
         |          ~~~^   ~~~~
         |             |   |
         |             |   long unsigned int
         |             unsigned int
         |          %.8lx
   arch/powerpc/xmon/xmon.c: In function 'xmon_print_symbol':
>> arch/powerpc/xmon/xmon.c:3425:14: error: variable 'name' might be clobbered by 'longjmp' or 'vfork' [-Werror=clobbered]
    3425 |  const char *name = NULL;
         |              ^~~~
   arch/powerpc/xmon/xmon.c: In function 'show_tasks':
>> arch/powerpc/xmon/xmon.c:3107:22: error: variable 'tsk' might be clobbered by 'longjmp' or 'vfork' [-Werror=clobbered]
    3107 |  struct task_struct *tsk = NULL;
         |                      ^~~
   arch/powerpc/xmon/xmon.c: In function 'xmon_core':
>> arch/powerpc/xmon/xmon.c:800:14: error: variable 'bp' might be clobbered by 'longjmp' or 'vfork' [-Werror=clobbered]
     800 |  struct bpt *bp;
         |              ^~
>> arch/powerpc/xmon/xmon.c:800:14: error: variable 'bp' might be clobbered by 'longjmp' or 'vfork' [-Werror=clobbered]
>> arch/powerpc/xmon/xmon.c:454:48: error: argument 'fromipi' might be clobbered by 'longjmp' or 'vfork' [-Werror=clobbered]
     454 | static int xmon_core(struct pt_regs *regs, int fromipi)
         |                                            ~~~~^~~~~~~
   cc1: all warnings being treated as errors

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for HOTPLUG_CPU
   Depends on SMP && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE
   Selected by
   - PM_SLEEP_SMP && SMP && (ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE && PM_SLEEP
   WARNING: unmet direct dependencies detected for FSL_EMB_PERFMON
   Depends on E500 || PPC_83xx
   Selected by
   - PPC_FSL_BOOK3E


vim +/is_valid_bugaddr +1341 arch/powerpc/kernel/traps.c

14cf11af6cf608 Paul Mackerras      2005-09-26  1340  
73c9ceab40b126 Jeremy Fitzhardinge 2006-12-08 @1341  int is_valid_bugaddr(unsigned long addr)
14cf11af6cf608 Paul Mackerras      2005-09-26  1342  {
73c9ceab40b126 Jeremy Fitzhardinge 2006-12-08  1343  	return is_kernel_addr(addr);
14cf11af6cf608 Paul Mackerras      2005-09-26  1344  }
14cf11af6cf608 Paul Mackerras      2005-09-26  1345  

:::::: The code at line 1341 was first introduced by commit
:::::: 73c9ceab40b1269d6195e556773167c078ac8311 [POWERPC] Generic BUG for powerpc

:::::: TO: Jeremy Fitzhardinge <jeremy@goop.org>
:::::: CC: Paul Mackerras <paulus@samba.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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