Hi Aravinda, 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/Aravinda-Prasad/mm-damon-mm-infrastructure-support/20240318-212723 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240318132848.82686-3-aravinda.prasad%40intel.com patch subject: [PATCH v2 2/3] mm/damon: profiling enhancement config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20240319/202403190218.1tBSAJpX-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240319/202403190218.1tBSAJpX-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403190218.1tBSAJpX-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): mm/damon/vaddr.c: In function 'pick_profile_level': >> mm/damon/vaddr.c:78:13: error: implicit declaration of function 'pgtable_l5_enabled' [-Werror=implicit-function-declaration] 78 | if (pgtable_l5_enabled()) { | ^~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/pgtable_l5_enabled +78 mm/damon/vaddr.c 54 55 /* Pick the highest possible page table profiling level for addr 56 * in the region defined by start and end 57 */ 58 static int pick_profile_level(unsigned long start, unsigned long end, 59 unsigned long addr) 60 { 61 /* Start with PTE and check if higher levels can be picked */ 62 int level = 0; 63 64 if (!arch_has_hw_nonleaf_pmd_young()) 65 return level; 66 67 /* Check if PMD or higher can be picked, else use PTE */ 68 if (pmd_addr_start(addr, (start) - 1) < start 69 || pmd_addr_end(addr, (end) + 1) > end) 70 return level; 71 72 level++; 73 /* Check if PUD or higher can be picked, else use PMD */ 74 if (pud_addr_start(addr, (start) - 1) < start 75 || pud_addr_end(addr, (end) + 1) > end) 76 return level; 77 > 78 if (pgtable_l5_enabled()) { 79 level++; 80 /* Check if P4D or higher can be picked, else use PUD */ 81 if (p4d_addr_start(addr, (start) - 1) < start 82 || p4d_addr_end(addr, (end) + 1) > end) 83 return level; 84 } 85 86 level++; 87 /* Check if PGD can be picked, else return PUD level */ 88 if (pgd_addr_start(addr, (start) - 1) < start 89 || pgd_addr_end(addr, (end) + 1) > end) 90 return level; 91 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
