tree: git://git.infradead.org/users/willy/pagecache for-next head: 9244dddc51b5e46444a334c881372aa66138f74a commit: 1be265f951d0eefea0f8a2aafef4dd18d8ad2719 [46/48] truncate,shmem: Handle truncates that split large folios config: arc-randconfig-r043-20211207 (https://download.01.org/0day-ci/archive/20211209/202112091729.kMRPshvJ-lk...) compiler: arceb-elf-gcc (GCC) 11.2.0 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 git remote add willy-pagecache git://git.infradead.org/users/willy/pagecache git fetch --no-tags willy-pagecache for-next git checkout 1be265f951d0eefea0f8a2aafef4dd18d8ad2719 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 154 | int shmem_get_folio(struct inode *inode, pgoff_t index, | ^~~~~~~~~~~~~~~ In file included from include/linux/perf_event.h:25, from include/linux/trace_events.h:10, from include/trace/syscall.h:7, from include/linux/syscalls.h:88, from mm/shmem.c:75: arch/arc/include/asm/perf_event.h:126:27: warning: 'arc_pmu_cache_map' defined but not used [-Wunused-const-variable=] 126 | static const unsigned int arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { | ^~~~~~~~~~~~~~~~~ arch/arc/include/asm/perf_event.h:91:27: warning: 'arc_pmu_ev_hw_map' defined but not used [-Wunused-const-variable=] 91 | static const char * const arc_pmu_ev_hw_map[] = { | ^~~~~~~~~~~~~~~~~ vim +/shmem_get_folio +154 mm/shmem.c 153 155 struct folio **foliop, enum sgp_type sgp) 156 { 157 struct page *page = NULL; 158 int ret = shmem_getpage(inode, index, &page, sgp); 159 160 if (page) 161 *foliop = page_folio(page); 162 else 163 *foliop = NULL; 164 return ret; 165 } 166 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org