Re: [PATCH v7 2/3] cachestat: implement cachestat syscall

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On Mon, Jan 23, 2023 at 10:49 PM kernel test robot <lkp@xxxxxxxxx> wrote:
>
> Hi Nhat,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on 1440f576022887004f719883acb094e7e0dd4944]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Nhat-Pham/workingset-refactor-LRU-refault-to-expose-refault-recency-check/20230124-101311
> base:   1440f576022887004f719883acb094e7e0dd4944
> patch link:    https://lore.kernel.org/r/20230124021118.154078-3-nphamcs%40gmail.com
> patch subject: [PATCH v7 2/3] cachestat: implement cachestat syscall
> config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20230124/202301241402.CeUdAtDh-lkp@xxxxxxxxx/config)
> compiler: mips-linux-gcc (GCC) 12.1.0
> 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
>         # https://github.com/intel-lab-lkp/linux/commit/f902a360bb453bd6885cd89d4f9ad4a40205fd15
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Nhat-Pham/workingset-refactor-LRU-refault-to-expose-refault-recency-check/20230124-101311
>         git checkout f902a360bb453bd6885cd89d4f9ad4a40205fd15
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips olddefconfig
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips prepare
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
>
> All warnings (new ones prefixed by >>):
>
> >> <stdin>:1565:2: warning: #warning syscall cachestat not implemented [-Wcpp]
> --
> >> <stdin>:1565:2: warning: #warning syscall cachestat not implemented [-Wcpp]
> --
>    scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
>    scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
>    scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
>    arch/mips/kernel/asm-offsets.c:26:6: warning: no previous prototype for 'output_ptreg_defines' [-Wmissing-prototypes]
>       26 | void output_ptreg_defines(void)
>          |      ^~~~~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:78:6: warning: no previous prototype for 'output_task_defines' [-Wmissing-prototypes]
>       78 | void output_task_defines(void)
>          |      ^~~~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:92:6: warning: no previous prototype for 'output_thread_info_defines' [-Wmissing-prototypes]
>       92 | void output_thread_info_defines(void)
>          |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:108:6: warning: no previous prototype for 'output_thread_defines' [-Wmissing-prototypes]
>      108 | void output_thread_defines(void)
>          |      ^~~~~~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:136:6: warning: no previous prototype for 'output_thread_fpu_defines' [-Wmissing-prototypes]
>      136 | void output_thread_fpu_defines(void)
>          |      ^~~~~~~~~~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:179:6: warning: no previous prototype for 'output_mm_defines' [-Wmissing-prototypes]
>      179 | void output_mm_defines(void)
>          |      ^~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:213:6: warning: no previous prototype for 'output_sc_defines' [-Wmissing-prototypes]
>      213 | void output_sc_defines(void)
>          |      ^~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:248:6: warning: no previous prototype for 'output_signal_defined' [-Wmissing-prototypes]
>      248 | void output_signal_defined(void)
>          |      ^~~~~~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:315:6: warning: no previous prototype for 'output_pbe_defines' [-Wmissing-prototypes]
>      315 | void output_pbe_defines(void)
>          |      ^~~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:327:6: warning: no previous prototype for 'output_pm_defines' [-Wmissing-prototypes]
>      327 | void output_pm_defines(void)
>          |      ^~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:341:6: warning: no previous prototype for 'output_kvm_defines' [-Wmissing-prototypes]
>      341 | void output_kvm_defines(void)
>          |      ^~~~~~~~~~~~~~~~~~
>    arch/mips/kernel/asm-offsets.c:385:6: warning: no previous prototype for 'output_cps_defines' [-Wmissing-prototypes]
>      385 | void output_cps_defines(void)
>          |      ^~~~~~~~~~~~~~~~~~
> >> <stdin>:1565:2: warning: #warning syscall cachestat not implemented [-Wcpp]
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests

I need to add the new syscall to mips' syscall table
(arch/mips/kernel/syscalls/syscall_n32.tbl etc.)




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