tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 5a1d9701155c6908c76c68951170f10279685143 commit: 2525d04c6308006b789564ed955081602727f38f [11451/30000] mm: Introduce proc interface to disable memory reliable features config: arm64-randconfig-001-20240914 (https://download.01.org/0day-ci/archive/20240914/202409140014.U3Yy9wN5-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240914/202409140014.U3Yy9wN5-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/202409140014.U3Yy9wN5-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

mm/mem_reliable.c: In function 'mem_reliable_feature_disable':

...

mm/mem_reliable.c:430:9: error: implicit declaration of function 'mem_reliable_ctrl_bit_disable'; did you mean 'mem_reliable_ctrl_bit_disabled'? [-Werror=implicit-function-declaration]

430 | mem_reliable_ctrl_bit_disable(idx); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | mem_reliable_ctrl_bit_disabled mm/mem_reliable.c: At top level:

...

mm/mem_reliable.c:405:13: warning: 'mem_reliable_ctrl_bit_disabled' defined but not used [-Wunused-function]

405 | static void mem_reliable_ctrl_bit_disabled(int idx) {} | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors

vim +430 mm/mem_reliable.c

387 388 static int __init reliable_sysctl_init(void) 389 { 390 if (!mem_reliable_is_enabled()) 391 return 0; 392 393 if (!register_sysctl_table(reliable_dir_table)) { 394 pr_err("register sysctl failed."); 395 return -ENOMEM; 396 } 397 398 percpu_counter_init(&pagecache_reliable_pages, 0, GFP_KERNEL); 399 percpu_counter_init(&anon_reliable_pages, 0, GFP_KERNEL); 400 401 return 0; 402 } 403 arch_initcall(reliable_sysctl_init); 404 #else

405 static void mem_reliable_ctrl_bit_disabled(int idx) {}

406 #endif 407 408 static void mem_reliable_feature_disable(int idx) 409 { 410 char *str = NULL; 411 412 switch (idx) { 413 case MEM_RELIABLE_FALLBACK: 414 reliable_allow_fallback = false; 415 str = "fallback"; 416 break; 417 case MEM_RELIABLE_SHMEM: 418 shmem_reliable = false; 419 str = "shmem"; 420 break; 421 case MEM_RELIABLE_PAGECACHE: 422 pagecache_use_reliable_mem = false; 423 str = "pagecache"; 424 break; 425 default: 426 pr_err("unknown index: %d", idx); 427 return; 428 } 429

430 mem_reliable_ctrl_bit_disable(idx);

431 pr_info("%s is disabled\n", str); 432 } 433