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Date:   Wed, 8 Jul 2020 08:08:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jiaxun Yang <jiaxun.yang@...goat.com>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org, Paul Burton <paulburton@...nel.org>
Subject: include/linux/topology.h:119:9: error: implicit declaration of
 function 'cpu_logical_map'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6d12075ddeedc38d25c5b74e929e686158da728c
commit: 71e2f4dd5a65bd8dbca0b77661e75eea471168f8 MIPS: Fork loongson2ef from loongson64
date:   8 months ago
config: mips-randconfig-r012-20200707 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 02946de3802d3bc65bc9f2eb9b8d4969b5a7add8)
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
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        git checkout 71e2f4dd5a65bd8dbca0b77661e75eea471168f8
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips 

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

All errors (new ones prefixed by >>):

   clang-11: warning: argument unused during compilation: '-mno-branch-likely' [-Wunused-command-line-argument]
   error: unknown target CPU 'r4600'
   note: valid target CPU values are: mips1, mips2, mips3, mips4, mips5, mips32, mips32r2, mips32r3, mips32r5, mips32r6, mips64, mips64r2, mips64r3, mips64r5, mips64r6, octeon, octeon+, p5600
   clang-11: warning: argument unused during compilation: '-mno-branch-likely' [-Wunused-command-line-argument]
   In file included from arch/mips/kernel/asm-offsets.c:12:
   In file included from include/linux/compat.h:15:
   In file included from include/linux/socket.h:8:
   In file included from include/linux/uio.h:10:
   In file included from include/crypto/hash.h:11:
   In file included from include/linux/crypto.h:19:
   In file included from include/linux/slab.h:15:
   In file included from include/linux/gfp.h:9:
>> include/linux/topology.h:119:9: error: implicit declaration of function 'cpu_logical_map' [-Werror,-Wimplicit-function-declaration]
           return cpu_to_node(raw_smp_processor_id());
                  ^
   arch/mips/include/asm/mach-loongson64/topology.h:7:27: note: expanded from macro 'cpu_to_node'
   #define cpu_to_node(cpu)        (cpu_logical_map(cpu) >> 2)
                                    ^
   In file included from arch/mips/kernel/asm-offsets.c:12:
   In file included from include/linux/compat.h:15:
   In file included from include/linux/socket.h:8:
   In file included from include/linux/uio.h:10:
   In file included from include/crypto/hash.h:11:
   In file included from include/linux/crypto.h:19:
   In file included from include/linux/slab.h:15:
   In file included from include/linux/gfp.h:9:
   include/linux/topology.h:193:9: error: implicit declaration of function 'cpu_logical_map' [-Werror,-Wimplicit-function-declaration]
           return cpu_to_node(cpu);
                  ^
   arch/mips/include/asm/mach-loongson64/topology.h:7:27: note: expanded from macro 'cpu_to_node'
   #define cpu_to_node(cpu)        (cpu_logical_map(cpu) >> 2)
                                    ^
   In file included from arch/mips/kernel/asm-offsets.c:12:
   In file included from include/linux/compat.h:15:
   In file included from include/linux/socket.h:8:
   In file included from include/linux/uio.h:10:
   In file included from include/crypto/hash.h:11:
   In file included from include/linux/crypto.h:19:
   In file included from include/linux/slab.h:15:
   In file included from include/linux/gfp.h:9:
   include/linux/topology.h:227:25: error: implicit declaration of function 'cpu_logical_map' [-Werror,-Wimplicit-function-declaration]
           return cpumask_of_node(cpu_to_node(cpu));
                                  ^
   arch/mips/include/asm/mach-loongson64/topology.h:7:27: note: expanded from macro 'cpu_to_node'
   #define cpu_to_node(cpu)        (cpu_logical_map(cpu) >> 2)
                                    ^
   arch/mips/kernel/asm-offsets.c:26:6: warning: no previous prototype for function 'output_ptreg_defines' [-Wmissing-prototypes]
   void output_ptreg_defines(void)
        ^
   arch/mips/kernel/asm-offsets.c:26:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void output_ptreg_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:78:6: warning: no previous prototype for function 'output_task_defines' [-Wmissing-prototypes]
   void output_task_defines(void)
        ^
   arch/mips/kernel/asm-offsets.c:78:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void output_task_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:93:6: warning: no previous prototype for function 'output_thread_info_defines' [-Wmissing-prototypes]
   void output_thread_info_defines(void)
        ^
   arch/mips/kernel/asm-offsets.c:93:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void output_thread_info_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:110:6: warning: no previous prototype for function 'output_thread_defines' [-Wmissing-prototypes]
   void output_thread_defines(void)
        ^
   arch/mips/kernel/asm-offsets.c:110:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void output_thread_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:181:6: warning: no previous prototype for function 'output_mm_defines' [-Wmissing-prototypes]
   void output_mm_defines(void)
        ^
   arch/mips/kernel/asm-offsets.c:181:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void output_mm_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:242:6: warning: no previous prototype for function 'output_sc_defines' [-Wmissing-prototypes]
   void output_sc_defines(void)
        ^
   arch/mips/kernel/asm-offsets.c:242:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void output_sc_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:255:6: warning: no previous prototype for function 'output_signal_defined' [-Wmissing-prototypes]
   void output_signal_defined(void)
        ^
   arch/mips/kernel/asm-offsets.c:255:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void output_signal_defined(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:334:6: warning: no previous prototype for function 'output_pm_defines' [-Wmissing-prototypes]
   void output_pm_defines(void)
        ^
   arch/mips/kernel/asm-offsets.c:334:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void output_pm_defines(void)
   ^
   static 
   8 warnings and 3 errors generated.
   make[2]: *** [scripts/Makefile.build:99: arch/mips/kernel/asm-offsets.s] Error 1
   make[2]: Target 'missing-syscalls' not remade because of errors.
   make[1]: *** [arch/mips/Makefile:414: archprepare] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:179: sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

vim +/cpu_logical_map +119 include/linux/topology.h

7281201922a006 Lee Schermerhorn 2010-05-26  114  
7281201922a006 Lee Schermerhorn 2010-05-26  115  /* Returns the number of the current Node. */
7281201922a006 Lee Schermerhorn 2010-05-26  116  #ifndef numa_node_id
7281201922a006 Lee Schermerhorn 2010-05-26  117  static inline int numa_node_id(void)
7281201922a006 Lee Schermerhorn 2010-05-26  118  {
7281201922a006 Lee Schermerhorn 2010-05-26 @119  	return cpu_to_node(raw_smp_processor_id());
7281201922a006 Lee Schermerhorn 2010-05-26  120  }
7281201922a006 Lee Schermerhorn 2010-05-26  121  #endif
7281201922a006 Lee Schermerhorn 2010-05-26  122  

:::::: The code at line 119 was first introduced by commit
:::::: 7281201922a0063fa60804ce39c277fc98142a47 numa: add generic percpu var numa_node_id() implementation

:::::: TO: Lee Schermerhorn <lee.schermerhorn@...com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

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

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