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* [tip:mm/pkeys 12/12] arch/x86/kernel/process_64.c:98:2: error: implicit declaration of function 'pr_default'
@ 2016-09-13 13:31 kbuild test robot
  0 siblings, 0 replies; only message in thread
From: kbuild test robot @ 2016-09-13 13:31 UTC (permalink / raw)
  To: Nicolas Iooss; +Cc: kbuild-all, linux-kernel, tipbuild, Thomas Gleixner

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git mm/pkeys
head:   19ab2b679c4af895ac0f3e79eea14952a6b2b2ce
commit: 19ab2b679c4af895ac0f3e79eea14952a6b2b2ce [12/12] x86/mm/pkeys: Do not skip PKRU register if debug registers are not used
config: x86_64-randconfig-x013-201637 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        git checkout 19ab2b679c4af895ac0f3e79eea14952a6b2b2ce
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   arch/x86/kernel/process_64.c: In function '__show_regs':
>> arch/x86/kernel/process_64.c:98:2: error: implicit declaration of function 'pr_default' [-Werror=implicit-function-declaration]
     pr_default("FS:  %016lx(%04x) GS:%016lx(%04x) knlGS:%016lx\n",
     ^~~~~~~~~~
   Cyclomatic Complexity 2 arch/x86/include/asm/bitops.h:set_bit
   Cyclomatic Complexity 2 arch/x86/include/asm/bitops.h:clear_bit
   Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:constant_test_bit
   Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:variable_test_bit
   Cyclomatic Complexity 1 arch/x86/include/asm/current.h:get_current
   Cyclomatic Complexity 1 arch/x86/include/asm/segment.h:__loadsegment_fs
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:load_sp0
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:paravirt_get_debugreg
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:clts
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:read_cr0
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:write_cr0
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:read_cr2
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:read_cr3
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:__read_cr4
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:paravirt_read_msr
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:paravirt_write_msr
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:paravirt_write_msr_safe
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:wrmsrl
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:load_TLS
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:load_gs_index
   Cyclomatic Complexity 1 arch/x86/include/asm/paravirt.h:arch_end_context_switch
   Cyclomatic Complexity 1 arch/x86/include/asm/msr.h:wrmsrl_safe
   Cyclomatic Complexity 1 arch/x86/include/asm/special_insns.h:__read_pkru
   Cyclomatic Complexity 1 arch/x86/include/asm/processor.h:current_top_of_stack
   Cyclomatic Complexity 1 arch/x86/include/asm/processor.h:prefetch
   Cyclomatic Complexity 1 arch/x86/include/asm/thread_info.h:current_thread_info
   Cyclomatic Complexity 2 arch/x86/include/asm/thread_info.h:in_ia32_syscall
   Cyclomatic Complexity 1 include/linux/thread_info.h:set_ti_thread_flag
   Cyclomatic Complexity 1 include/linux/thread_info.h:clear_ti_thread_flag
   Cyclomatic Complexity 5 arch/x86/include/asm/preempt.h:__preempt_count_add
   Cyclomatic Complexity 5 arch/x86/include/asm/preempt.h:__preempt_count_sub
   Cyclomatic Complexity 1 include/linux/sched.h:set_tsk_thread_flag
   Cyclomatic Complexity 2 arch/x86/include/asm/pgtable.h:read_pkru
   Cyclomatic Complexity 1 arch/x86/include/asm/trace/fpu.h:trace_x86_fpu_regs_activated
   Cyclomatic Complexity 1 arch/x86/include/asm/trace/fpu.h:trace_x86_fpu_regs_deactivated
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:use_eager_fpu
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:use_xsave
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:use_fxsr
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:copy_kernel_to_fxregs
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:copy_kernel_to_fregs
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:copy_fxregs_to_kernel
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:copy_kernel_to_xregs
   Cyclomatic Complexity 3 arch/x86/include/asm/fpu/internal.h:__copy_kernel_to_fpregs
   Cyclomatic Complexity 3 arch/x86/include/asm/fpu/internal.h:fpu_want_lazy_restore
   Cyclomatic Complexity 2 arch/x86/include/asm/fpu/internal.h:__fpregs_activate_hw
   Cyclomatic Complexity 2 arch/x86/include/asm/fpu/internal.h:__fpregs_deactivate_hw
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:__fpregs_activate
   Cyclomatic Complexity 1 arch/x86/include/asm/fpu/internal.h:fpregs_activate
   Cyclomatic Complexity 1 arch/x86/kernel/process_64.c:start_thread_common
   Cyclomatic Complexity 2 arch/x86/include/asm/fpu/internal.h:copy_kernel_to_fpregs
   Cyclomatic Complexity 2 arch/x86/include/asm/fpu/internal.h:switch_fpu_finish
   Cyclomatic Complexity 2 include/linux/thread_info.h:test_ti_thread_flag
   Cyclomatic Complexity 1 include/linux/sched.h:test_tsk_thread_flag
   Cyclomatic Complexity 2 arch/x86/include/asm/fpu/internal.h:copy_xregs_to_kernel
   Cyclomatic Complexity 3 arch/x86/include/asm/fpu/internal.h:copy_fpregs_to_fpstate
   Cyclomatic Complexity 9 arch/x86/include/asm/fpu/internal.h:switch_fpu_prepare
   Cyclomatic Complexity 5 arch/x86/kernel/process_64.c:__show_regs
   Cyclomatic Complexity 2 arch/x86/kernel/process_64.c:release_thread
   Cyclomatic Complexity 1 arch/x86/kernel/process_64.c:start_thread
   Cyclomatic Complexity 2 arch/x86/kernel/process_64.c:compat_start_thread
   Cyclomatic Complexity 21 arch/x86/kernel/process_64.c:__switch_to
   Cyclomatic Complexity 2 arch/x86/kernel/process_64.c:set_personality_64bit
   Cyclomatic Complexity 4 arch/x86/kernel/process_64.c:set_personality_ia32
   Cyclomatic Complexity 11 arch/x86/kernel/process_64.c:do_arch_prctl
   Cyclomatic Complexity 12 arch/x86/kernel/process_64.c:copy_thread_tls
   Cyclomatic Complexity 1 arch/x86/kernel/process_64.c:sys_arch_prctl
   Cyclomatic Complexity 1 arch/x86/kernel/process_64.c:KSTK_ESP
   cc1: some warnings being treated as errors

vim +/pr_default +98 arch/x86/kernel/process_64.c

    92	
    93		cr0 = read_cr0();
    94		cr2 = read_cr2();
    95		cr3 = read_cr3();
    96		cr4 = __read_cr4();
    97	
  > 98		pr_default("FS:  %016lx(%04x) GS:%016lx(%04x) knlGS:%016lx\n",
    99			   fs, fsindex, gs, gsindex, shadowgs);
   100		pr_default("CS:  %04x DS: %04x ES: %04x CR0: %016lx\n", cs, ds,
   101			   es, cr0);

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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2016-09-13 13:31 [tip:mm/pkeys 12/12] arch/x86/kernel/process_64.c:98:2: error: implicit declaration of function 'pr_default' kbuild test robot

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