tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: eccf28eefc9db7799534bd84bb958f3ecf978e2d commit: 721f4ea899ff2ab4e3283767cf125dc5952c1d15 [13455/13476] cvm_tsi: add support virtcca attestation config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20240823/202408230839.S2haccDx-lkp@i...) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 26670e7fa4f032a019d23d56c6a02926e854e8af) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240823/202408230839.S2haccDx-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/202408230839.S2haccDx-lkp@intel.com/

All warnings (new ones prefixed by >>):

In file included from arch/arm64/kernel/virtcca_cvm_tsi.c:3: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:2242: 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 + | ~~~~~~~~~~~~~~~~~~~~~~

...

arch/arm64/kernel/virtcca_cvm_tsi.c:57:30: warning: variable 'ver' is uninitialized when used here [-Wuninitialized]

57 | TSI_ABI_VERSION_GET_MAJOR(ver), | ^~~ include/linux/printk.h:508:37: note: expanded from macro 'pr_warn' 508 | printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/printk.h:455:60: note: expanded from macro 'printk' 455 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap' 427 | _p_func(_fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ arch/arm64/include/asm/virtcca_cvm_smc.h:16:47: note: expanded from macro 'TSI_ABI_VERSION_GET_MAJOR' 16 | #define TSI_ABI_VERSION_GET_MAJOR(_version) ((_version) >> 16) | ^~~~~~~~ arch/arm64/kernel/virtcca_cvm_tsi.c:39:19: note: initialize the variable 'ver' to silence this warning 39 | unsigned long ver; | ^ | = 0 6 warnings generated.

vim +/ver +57 arch/arm64/kernel/virtcca_cvm_tsi.c

36 37 static int __init tmm_tsi_init(void) 38 { 39 unsigned long ver; 40 int ret; 41 42 if (!is_virtcca_cvm_world()) 43 return -EIO; 44 45 ret = misc_register(&ioctl_dev); 46 if (ret) { 47 pr_err("tmm_tsi: misc device register failed (%d)!\n", ret); 48 return ret; 49 } 50 51 /* Allocate a large memory */ 52 token.buf = kzalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_COUNT, GFP_KERNEL); 53 if (!token.buf) 54 return -ENOMEM; 55 56 pr_warn("tmm_tsi: module loaded (version %lu.%lu).\n",

57 TSI_ABI_VERSION_GET_MAJOR(ver),

58 TSI_ABI_VERSION_GET_MINOR(ver)); 59 60 return 0; 61 } 62