Hi Ma, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c9fe32fed709da98069e8215f6ecf39ea63f5355 commit: 425771499c0742a996ab28df143d7a5123102686 [2413/14216] mm: mem_reliable: Introduce proc interface to disable memory reliable features config: arm64-randconfig-003-20240928 (https://download.01.org/0day-ci/archive/20240928/202409280502.YvJdfMQd-lkp@i...) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 7773243d9916f98ba0ffce0c3a960e4aa9f03e81) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240928/202409280502.YvJdfMQd-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202409280502.YvJdfMQd-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from mm/mem_reliable.c:5: In file included from include/linux/mm.h:2181: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~

...

mm/mem_reliable.c:345:2: error: call to undeclared function 'mem_reliable_ctrl_bit_disable'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 345 | mem_reliable_ctrl_bit_disable(idx); | ^ mm/mem_reliable.c:345:2: note: did you mean 'mem_reliable_ctrl_bit_disabled'? mm/mem_reliable.c:320:13: note: 'mem_reliable_ctrl_bit_disabled' declared here 320 | static void mem_reliable_ctrl_bit_disabled(int idx) {} | ^ mm/mem_reliable.c:376:45: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 376 | num += global_node_page_state(NR_LRU_BASE + LRU_ACTIVE_FILE); | ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~ mm/mem_reliable.c:377:45: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 377 | num += global_node_page_state(NR_LRU_BASE + LRU_INACTIVE_FILE); | ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~ 7 warnings and 1 error generated.

vim +/mem_reliable_ctrl_bit_disable +345 mm/mem_reliable.c 322 323 static void mem_reliable_feature_disable(int idx) 324 { 325 char *str = NULL; 326 327 switch (idx) { 328 case MEM_RELIABLE_FALLBACK: 329 reliable_allow_fallback = false; 330 str = "fallback"; 331 break; 332 case MEM_RELIABLE_SHMEM: 333 shmem_reliable = false; 334 str = "shmem"; 335 break; 336 case MEM_RELIABLE_PAGECACHE: 337 pagecache_reliable = false; 338 str = "pagecache"; 339 break; 340 default: 341 pr_err("unknown index: %d", idx); 342 return; 343 } 344

345 mem_reliable_ctrl_bit_disable(idx); 346 pr_info("%s is disabled\n", str); 347 } 348

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