Hi Alexandre, kernel test robot noticed the following build errors: [auto build test ERROR on tip/perf/core] [also build test ERROR on acme/perf/core tip/master tip/auto-latest linus/master v6.3-rc6] [cannot apply to next-20230413] [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/Alexandre-Ghiti/perf-Fix-wrong-comment-about-default-event_idx/20230414-002232 patch link: https://lore.kernel.org/r/20230413161725.195417-5-alexghiti%40rivosinc.com patch subject: [PATCH 4/4] riscv: Enable perf counters user access only through perf config: riscv-randconfig-r036-20230412 (https://download.01.org/0day-ci/archive/20230414/202304140904.9oAVhFHu-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 9638da200e00bd069e6dd63604e14cbafede9324) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/8ca9b21cbf2c0b91ee35356c01aef9da7d874e55 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Alexandre-Ghiti/perf-Fix-wrong-comment-about-default-event_idx/20230414-002232 git checkout 8ca9b21cbf2c0b91ee35356c01aef9da7d874e55 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kernel/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304140904.9oAVhFHu-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> arch/riscv/kernel/perf_event.c:8:28: error: call to undeclared function 'to_riscv_pmu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] struct riscv_pmu *rvpmu = to_riscv_pmu(event->pmu); ^ >> arch/riscv/kernel/perf_event.c:8:20: error: incompatible integer to pointer conversion initializing 'struct riscv_pmu *' with an expression of type 'int' [-Wint-conversion] struct riscv_pmu *rvpmu = to_riscv_pmu(event->pmu); ^ ~~~~~~~~~~~~~~~~~~~~~~~~ >> arch/riscv/kernel/perf_event.c:24:27: error: incomplete definition of type 'struct riscv_pmu' userpg->pmc_width = rvpmu->ctr_get_width(event->hw.idx) + 1; ~~~~~^ arch/riscv/kernel/perf_event.c:8:9: note: forward declaration of 'struct riscv_pmu' struct riscv_pmu *rvpmu = to_riscv_pmu(event->pmu); ^ 3 errors generated. vim +/to_riscv_pmu +8 arch/riscv/kernel/perf_event.c 4 5 void arch_perf_update_userpage(struct perf_event *event, 6 struct perf_event_mmap_page *userpg, u64 now) 7 { > 8 struct riscv_pmu *rvpmu = to_riscv_pmu(event->pmu); 9 struct clock_read_data *rd; 10 unsigned int seq; 11 u64 ns; 12 13 userpg->cap_user_time = 0; 14 userpg->cap_user_time_zero = 0; 15 userpg->cap_user_time_short = 0; 16 userpg->cap_user_rdpmc = 17 !!(event->hw.flags & PERF_EVENT_FLAG_USER_READ_CNT); 18 19 /* 20 * The counters are 64-bit but the priv spec doesn't mandate all the 21 * bits to be implemented: that's why, counter width can vary based on 22 * the cpu vendor. 23 */ > 24 userpg->pmc_width = rvpmu->ctr_get_width(event->hw.idx) + 1; -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
