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Rao" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Peter Zijlstra , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , "Liang, Kan" , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-perf-users@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-kernel@vger.kernel.org, Jinchao Wang Subject: Re: [PATCH v2 06/18] perf/hw_breakpoint: add arch-independent hw_breakpoint_modify_local() Message-ID: <202509060154.f5xlnJ2n-lkp@intel.com> References: <20250904002126.1514566-7-wangjinchao600@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250904002126.1514566-7-wangjinchao600@gmail.com> X-Stat-Signature: rwnfiige7mc9gdiunjqiobbt3bxxzw1u X-Rspam-User: X-Rspamd-Queue-Id: 5E1BAC000D X-Rspamd-Server: rspam05 X-HE-Tag: 1757093570-836021 X-HE-Meta: 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 AlD3d6tz rP4q7x3IVaSi3L6ga7NKymlyPwioj255WfcyXEczgMug+0rM0l9LV5QGfPxLn44EaBDo66ip4+Z78mKmNEWGBzO3BnmAwgu8wxUHzlKya0UDuhy/P2/YS/4PHJeuXtmcGicYHalXUyWJNZLNqiXwJPDb2hxW+r41QdeBfWNs/Un90LMCuxHnZK2qJINdiNEpsKRYyvnkMyJJv8hFaFuSNVc6MmvcjJF/lTmrUtw9Iz2N6XwMW6vhiQhhS8cq50wAOpvZxQF6/622Z4F27qeYTSqzhVCxGlKhBdECLIzwF/hEK9+KDxxSkZjn0NkmhdEwrtDbGjfFal6KwriNOuK1+s6e2MLK94F8zs7N33hT4080v/Reb5udxnzXMwyCQVfWHHbPnGt2Ipi/xXlc= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Jinchao, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Jinchao-Wang/mm-ksw-add-build-system-support/20250904-082544 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20250904002126.1514566-7-wangjinchao600%40gmail.com patch subject: [PATCH v2 06/18] perf/hw_breakpoint: add arch-independent hw_breakpoint_modify_local() config: sh-randconfig-001-20250905 (https://download.01.org/0day-ci/archive/20250906/202509060154.f5xlnJ2n-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250906/202509060154.f5xlnJ2n-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202509060154.f5xlnJ2n-lkp@intel.com/ All errors (new ones prefixed by >>): kernel/events/hw_breakpoint.c: In function 'hw_breakpoint_modify_local': >> kernel/events/hw_breakpoint.c:994:16: error: implicit declaration of function 'arch_reinstall_hw_breakpoint'; did you mean 'arch_uninstall_hw_breakpoint'? [-Wimplicit-function-declaration] 994 | return arch_reinstall_hw_breakpoint(bp); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ | arch_uninstall_hw_breakpoint kernel/events/hw_breakpoint.c: At top level: kernel/events/hw_breakpoint.c:999:12: warning: no previous prototype for 'arch_reinstall_hw_breakpoint' [-Wmissing-prototypes] 999 | __weak int arch_reinstall_hw_breakpoint(struct perf_event *bp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +994 kernel/events/hw_breakpoint.c 985 986 int hw_breakpoint_modify_local(struct perf_event *bp, struct perf_event_attr *attr) 987 { 988 int err; 989 990 err = hw_breakpoint_arch_parse(bp, attr, counter_arch_bp(bp)); 991 if (err) 992 return err; 993 > 994 return arch_reinstall_hw_breakpoint(bp); 995 } 996 EXPORT_SYMBOL(hw_breakpoint_modify_local); 997 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki