Re: [PATCH 7/7] riscv: mm: Combine the SMP and non-SMP TLB flushing code

[kernel test robot]

Hi Samuel,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.6-rc1 next-20230911]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Samuel-Holland/riscv-Apply-SiFive-CIP-1200-workaround-to-single-ASID-sfence-vma/20230910-042028
base:   linus/master
patch link:    https://lore.kernel.org/r/20230909201727.10909-8-samuel%40sholland.org
patch subject: [PATCH 7/7] riscv: mm: Combine the SMP and non-SMP TLB flushing code
config: riscv-nommu_k210_sdcard_defconfig (https://download.01.org/0day-ci/archive/20230912/202309120901.kQtGm3L4-lkp@xxxxxxxxx/config)
compiler: riscv64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230912/202309120901.kQtGm3L4-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309120901.kQtGm3L4-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from arch/riscv/include/asm/pgtable.h:117,
                    from include/linux/pgtable.h:6,
                    from include/linux/mm.h:29,
                    from arch/riscv/kernel/asm-offsets.c:10:
   arch/riscv/include/asm/tlbflush.h: In function 'flush_tlb_kernel_range':
>> arch/riscv/include/asm/tlbflush.h:60:9: error: implicit declaration of function 'flush_tlb_all' [-Werror=implicit-function-declaration]
      60 |         flush_tlb_all();
         |         ^~~~~~~~~~~~~
   cc1: some warnings being treated as errors
   make[3]: *** [scripts/Makefile.build:116: arch/riscv/kernel/asm-offsets.s] Error 1
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1202: prepare0] Error 2
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:234: __sub-make] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:234: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +/flush_tlb_all +60 arch/riscv/include/asm/tlbflush.h

fab957c11efe2f Palmer Dabbelt 2017-07-10  55  
fab957c11efe2f Palmer Dabbelt 2017-07-10  56  /* Flush a range of kernel pages */
fab957c11efe2f Palmer Dabbelt 2017-07-10  57  static inline void flush_tlb_kernel_range(unsigned long start,
fab957c11efe2f Palmer Dabbelt 2017-07-10  58  	unsigned long end)
fab957c11efe2f Palmer Dabbelt 2017-07-10  59  {
fab957c11efe2f Palmer Dabbelt 2017-07-10 @60  	flush_tlb_all();
fab957c11efe2f Palmer Dabbelt 2017-07-10  61  }
fab957c11efe2f Palmer Dabbelt 2017-07-10  62  

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