In-Reply-To: <20210911135043.16014-2-yinan(a)linux.alibaba.com&gt; References: <20210911135043.16014-2-yinan(a)linux.alibaba.com&gt; TO: Yinan Liu <yinan(a)linux.alibaba.com&gt; TO: yinan(a)linux.alibaba.com TO: rostedt(a)goodmis.org TO: mark-pk.tsai(a)mediatek.com TO: peterz(a)infradead.org TO: mingo(a)redhat.com TO: linux-kernel(a)vger.kernel.org Hi Yinan, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/perf/core] [also build test ERROR on kbuild/for-next trace/for-next linus/master v5.14 next-20210910] [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] url: https://github.com/0day-ci/linux/commits/Yinan-Liu/ftrace-improve-ftrace-... base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 4034fb207e302cc0b1f304084d379640c1fb1436 config: mips-buildonly-randconfig-r002-20210911 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 261cbe98c38f8c1ee1a482fe76511110e790f58a) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://github.com/0day-ci/linux/commit/b629528c58117cccbdb70fbded8fd9c4e... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yinan-Liu/ftrace-improve-ftrace-during-compiling/20210911-215230 git checkout b629528c58117cccbdb70fbded8fd9c4ef2dd9d9 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=mips prepare If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): error: unknown target CPU 'r5000' note: valid target CPU values are: mips1, mips2, mips3, mips4, mips5, mips32, mips32r2, mips32r3, mips32r5, mips32r6, mips64, mips64r2, mips64r3, mips64r5, mips64r6, octeon, octeon+, p5600 In file included from scripts/sorttable.c:191: if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:2: note: remove the 'if' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:6: note: remove the '||' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:6: note: remove the '||' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:286:30: note: initialize the variable 'mcount_sort_thread' to silence this warning pthread_t mcount_sort_thread; ^ = 0 In file included from scripts/sorttable.c:193: if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:2: note: remove the 'if' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:6: note: remove the '||' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:6: note: remove the '||' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:286:30: note: initialize the variable 'mcount_sort_thread' to silence this warning pthread_t mcount_sort_thread; ^ = 0 6 warnings generated. /usr/bin/ld: /tmp/sorttable-24d811.o: in function `main': make[2]: *** [scripts/Makefile.host:95: scripts/sorttable] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1196: scripts] Error 2 make[1]: Target 'modules_prepare' not remade because of errors. make: *** [Makefile:220: __sub-make] Error 2 make: Target 'modules_prepare' not remade because of errors. -- error: unknown target CPU 'r5000' note: valid target CPU values are: mips1, mips2, mips3, mips4, mips5, mips32, mips32r2, mips32r3, mips32r5, mips32r6, mips64, mips64r2, mips64r3, mips64r5, mips64r6, octeon, octeon+, p5600 scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr] scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr] In file included from scripts/sorttable.c:191: if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:2: note: remove the 'if' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:6: note: remove the '||' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:6: note: remove the '||' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:286:30: note: initialize the variable 'mcount_sort_thread' to silence this warning pthread_t mcount_sort_thread; ^ = 0 In file included from scripts/sorttable.c:193: if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:2: note: remove the 'if' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:6: note: remove the '||' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:469:6: note: uninitialized use occurs here if (mcount_sort_thread) { ^~~~~~~~~~~~~~~~~~ scripts/sorttable.h:372:6: note: remove the '||' if its condition is always false if (!mstruct.init_data_sec || !_start_mcount_loc || !_stop_mcount_loc) { ^~~~~~~~~~~~~~~~~~~~~~~~~ scripts/sorttable.h:286:30: note: initialize the variable 'mcount_sort_thread' to silence this warning pthread_t mcount_sort_thread; ^ = 0 6 warnings generated. /usr/bin/ld: /tmp/sorttable-db52b1.o: in function `main': make[2]: *** [scripts/Makefile.host:95: scripts/sorttable] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1196: scripts] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:220: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org