[openeuler:OLK-6.6 3892/14286] include/linux/mmzone.h:1788:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE

[openeuler:OLK-6.6 3892/14286] include/linux/mmzone.h:1788:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE

[kernel test robot]

Hi zhangtianyang,

FYI, the error/warning still remains.

tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   fb512ada4da1a8aefba17392d87452a37796a0f2
commit: c93eb12529e21dbb59796132f4fdf75fad4eddaf [3892/14286] LoongArch: Adapted SECTION_SIZE_BITS with page size
config: loongarch-randconfig-002-20241009 (https://download.01.org/0day-ci/archive/20241009/202410091038.th2Iv8Hi-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241009/202410091038.th2Iv8Hi-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410091038.th2Iv8Hi-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from arch/loongarch/kernel/asm-offsets.c:9:
>> include/linux/mmzone.h:1788:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE
    1788 | #error Allocator MAX_ORDER exceeds SECTION_SIZE
         |  ^~~~~
   arch/loongarch/kernel/asm-offsets.c:18:6: warning: no previous prototype for 'output_ptreg_defines' [-Wmissing-prototypes]
      18 | void output_ptreg_defines(void)
         |      ^~~~~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:65:6: warning: no previous prototype for 'output_task_defines' [-Wmissing-prototypes]
      65 | void output_task_defines(void)
         |      ^~~~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:80:6: warning: no previous prototype for 'output_thread_info_defines' [-Wmissing-prototypes]
      80 | void output_thread_info_defines(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:96:6: warning: no previous prototype for 'output_thread_defines' [-Wmissing-prototypes]
      96 | void output_thread_defines(void)
         |      ^~~~~~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:132:6: warning: no previous prototype for 'output_thread_fpu_defines' [-Wmissing-prototypes]
     132 | void output_thread_fpu_defines(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:173:6: warning: no previous prototype for 'output_thread_lbt_defines' [-Wmissing-prototypes]
     173 | void output_thread_lbt_defines(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:183:6: warning: no previous prototype for 'output_mm_defines' [-Wmissing-prototypes]
     183 | void output_mm_defines(void)
         |      ^~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:215:6: warning: no previous prototype for 'output_sc_defines' [-Wmissing-prototypes]
     215 | void output_sc_defines(void)
         |      ^~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:223:6: warning: no previous prototype for 'output_signal_defines' [-Wmissing-prototypes]
     223 | void output_signal_defines(void)
         |      ^~~~~~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:261:6: warning: no previous prototype for 'output_smpboot_defines' [-Wmissing-prototypes]
     261 | void output_smpboot_defines(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~
   arch/loongarch/kernel/asm-offsets.c:294:6: warning: no previous prototype for 'output_kvm_defines' [-Wmissing-prototypes]
     294 | void output_kvm_defines(void)
         |      ^~~~~~~~~~~~~~~~~~
   make[3]: *** [scripts/Makefile.build:116: arch/loongarch/kernel/asm-offsets.s] Error 1 shuffle=526995723
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1202: prepare0] Error 2 shuffle=526995723
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:234: __sub-make] Error 2 shuffle=526995723
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:234: __sub-make] Error 2 shuffle=526995723
   make: Target 'prepare' not remade because of errors.


vim +1788 include/linux/mmzone.h

d41dee369bff3b Andy Whitcroft     2005-06-23  1783  
835c134ec4dd75 Mel Gorman         2007-10-16  1784  #define SECTION_BLOCKFLAGS_BITS \
d9c2340052278d Mel Gorman         2007-10-16  1785  	((1UL << (PFN_SECTION_SHIFT - pageblock_order)) * NR_PAGEBLOCK_BITS)
835c134ec4dd75 Mel Gorman         2007-10-16  1786  
23baf831a32c04 Kirill A. Shutemov 2023-03-15  1787  #if (MAX_ORDER + PAGE_SHIFT) > SECTION_SIZE_BITS
d41dee369bff3b Andy Whitcroft     2005-06-23 @1788  #error Allocator MAX_ORDER exceeds SECTION_SIZE
d41dee369bff3b Andy Whitcroft     2005-06-23  1789  #endif
d41dee369bff3b Andy Whitcroft     2005-06-23  1790  

:::::: The code at line 1788 was first introduced by commit
:::::: d41dee369bff3b9dcb6328d4d822926c28cc2594 [PATCH] sparsemem memory model

:::::: TO: Andy Whitcroft <apw@shadowen.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

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