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Message-ID: <201609132123.htNCVQzU%fengguang.wu@intel.com>
Date: Tue, 13 Sep 2016 21:31:26 +0800
From: kbuild test robot <fengguang.wu@...el.com>
To: Nicolas Iooss <nicolas.iooss_linux@....org>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org,
tipbuild@...or.com, Thomas Gleixner <tglx@...utronix.de>
Subject: [tip:mm/pkeys 12/12] arch/x86/kernel/process_64.c:98:2: error:
implicit declaration of function 'pr_default'
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);
---
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