[luto:x86/idtentry 1/19] arch/x86/include/asm/cpu_entry_area.h:121:32: note: in expansion of macro 'CPU_ENTRY_AREA_BASE'

[luto:x86/idtentry 1/19] arch/x86/include/asm/cpu_entry_area.h:121:32: note: in expansion of macro 'CPU_ENTRY_AREA_BASE'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/idtentry
head:   0e0594256cceb6b3b1a7c50913b969b5eb2442ad
commit: b8b1a6f7f114b98d877424455f8eeb1a3111984f [1/19] x86/hw_breakpoint: Prevent data breakpoints on cpu_entry_area
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
reproduce:
        git checkout b8b1a6f7f114b98d877424455f8eeb1a3111984f
        # save the attached .config to linux build tree
        make ARCH=i386 

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

All error/warnings (new ones prefixed by >>):

   In file included from arch/x86/include/asm/pgtable_types.h:247:0,
                    from arch/x86/include/asm/processor.h:19,
                    from arch/x86/include/asm/cpufeature.h:5,
                    from arch/x86/include/asm/thread_info.h:53,
                    from include/linux/thread_info.h:38,
                    from arch/x86/include/asm/preempt.h:7,
                    from include/linux/preempt.h:78,
                    from include/linux/spinlock.h:51,
                    from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from arch/x86/events/intel/ds.c:4:
   arch/x86/include/asm/cpu_entry_area.h: In function 'within_cpu_entry_area':
>> arch/x86/include/asm/pgtable_32_types.h:50:4: error: 'FIXADDR_TOT_START' undeclared (first use in this function)
     ((FIXADDR_TOT_START - PAGE_SIZE * (CPU_ENTRY_AREA_PAGES + 1))   \
       ^
>> arch/x86/include/asm/cpu_entry_area.h:121:32: note: in expansion of macro 'CPU_ENTRY_AREA_BASE'
    #define CPU_ENTRY_AREA_RO_IDT  CPU_ENTRY_AREA_BASE
                                   ^~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/cpu_entry_area.h:122:34: note: in expansion of macro 'CPU_ENTRY_AREA_RO_IDT'
    #define CPU_ENTRY_AREA_PER_CPU  (CPU_ENTRY_AREA_RO_IDT + PAGE_SIZE)
                                     ^~~~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/cpu_entry_area.h:142:16: note: in expansion of macro 'CPU_ENTRY_AREA_PER_CPU'
     return end >= CPU_ENTRY_AREA_PER_CPU &&
                   ^~~~~~~~~~~~~~~~~~~~~~
   arch/x86/include/asm/pgtable_32_types.h:50:4: note: each undeclared identifier is reported only once for each function it appears in
     ((FIXADDR_TOT_START - PAGE_SIZE * (CPU_ENTRY_AREA_PAGES + 1))   \
       ^
>> arch/x86/include/asm/cpu_entry_area.h:121:32: note: in expansion of macro 'CPU_ENTRY_AREA_BASE'
    #define CPU_ENTRY_AREA_RO_IDT  CPU_ENTRY_AREA_BASE
                                   ^~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/cpu_entry_area.h:122:34: note: in expansion of macro 'CPU_ENTRY_AREA_RO_IDT'
    #define CPU_ENTRY_AREA_PER_CPU  (CPU_ENTRY_AREA_RO_IDT + PAGE_SIZE)
                                     ^~~~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/cpu_entry_area.h:142:16: note: in expansion of macro 'CPU_ENTRY_AREA_PER_CPU'
     return end >= CPU_ENTRY_AREA_PER_CPU &&
                   ^~~~~~~~~~~~~~~~~~~~~~

vim +/CPU_ENTRY_AREA_BASE +121 arch/x86/include/asm/cpu_entry_area.h

92a0f81d89571e Thomas Gleixner 2017-12-20  120  
92a0f81d89571e Thomas Gleixner 2017-12-20 @121  #define	CPU_ENTRY_AREA_RO_IDT		CPU_ENTRY_AREA_BASE
92a0f81d89571e Thomas Gleixner 2017-12-20 @122  #define CPU_ENTRY_AREA_PER_CPU		(CPU_ENTRY_AREA_RO_IDT + PAGE_SIZE)
92a0f81d89571e Thomas Gleixner 2017-12-20  123  
92a0f81d89571e Thomas Gleixner 2017-12-20  124  #define CPU_ENTRY_AREA_RO_IDT_VADDR	((void *)CPU_ENTRY_AREA_RO_IDT)
92a0f81d89571e Thomas Gleixner 2017-12-20  125  
92a0f81d89571e Thomas Gleixner 2017-12-20  126  #define CPU_ENTRY_AREA_MAP_SIZE			\
92a0f81d89571e Thomas Gleixner 2017-12-20  127  	(CPU_ENTRY_AREA_PER_CPU + CPU_ENTRY_AREA_TOT_SIZE - CPU_ENTRY_AREA_BASE)
92a0f81d89571e Thomas Gleixner 2017-12-20  128  
92a0f81d89571e Thomas Gleixner 2017-12-20  129  extern struct cpu_entry_area *get_cpu_entry_area(int cpu);
92a0f81d89571e Thomas Gleixner 2017-12-20  130  
92a0f81d89571e Thomas Gleixner 2017-12-20  131  static inline struct entry_stack *cpu_entry_stack(int cpu)
92a0f81d89571e Thomas Gleixner 2017-12-20  132  {
92a0f81d89571e Thomas Gleixner 2017-12-20  133  	return &get_cpu_entry_area(cpu)->entry_stack_page.stack;
92a0f81d89571e Thomas Gleixner 2017-12-20  134  }
ed1bbc40a0d10e Thomas Gleixner 2017-12-20  135  
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  136  /*
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  137   * Checks whether the range from addr to end, inclusive, overlaps the CPU
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  138   * entry area range.
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  139   */
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  140  static inline bool within_cpu_entry_area(unsigned long addr, unsigned long end)
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  141  {
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18 @142  	return end >= CPU_ENTRY_AREA_PER_CPU &&
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  143  		addr < (CPU_ENTRY_AREA_PER_CPU + CPU_ENTRY_AREA_TOT_SIZE);
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  144  }
b8b1a6f7f114b9 Andy Lutomirski 2019-07-18  145  

:::::: The code@line 121 was first introduced by commit
:::::: 92a0f81d89571e3e8759366e050ee05cc545ef99 x86/cpu_entry_area: Move it out of the fixmap

:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Ingo Molnar <mingo@kernel.org>

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

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