Hi Peter,

FYI, the error/warning still remains.

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: e74aedc9df70f84e50a280478b93d98b3a622bc3 commit: 822da186955cbcd69b4715b8a307053e6c756f30 [2451/2451] x86/ibt,paravirt: Use text_gen_insn() for paravirt_patch() config: x86_64-buildonly-randconfig-001-20241119 (https://download.01.org/0day-ci/archive/20241120/202411201117.TvJc5RO0-lkp@i...) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241120/202411201117.TvJc5RO0-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/202411201117.TvJc5RO0-lkp@intel.com/

All errors (new ones prefixed by >>):

In file included from arch/x86/kernel/paravirt.c:14: In file included from include/linux/highmem.h:8: In file included from include/linux/mm.h:1581: include/linux/vmstat.h:417:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 417 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 418 | item]; | ~~~~ include/linux/vmstat.h:424:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 424 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 425 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 431 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:436:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 436 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 437 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:445:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 445 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 446 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ arch/x86/kernel/paravirt.c:65:2: error: implicit declaration of function '__text_gen_insn' [-Werror,-Wimplicit-function-declaration] 65 | __text_gen_insn(insn_buff, CALL_INSN_OPCODE, | ^ arch/x86/kernel/paravirt.c:65:29: error: use of undeclared identifier 'CALL_INSN_OPCODE' 65 | __text_gen_insn(insn_buff, CALL_INSN_OPCODE, | ^

...

arch/x86/kernel/paravirt.c:66:26: error: use of undeclared identifier 'CALL_INSN_SIZE'

66 | (void *)addr, target, CALL_INSN_SIZE); | ^ arch/x86/kernel/paravirt.c:67:9: error: use of undeclared identifier 'CALL_INSN_SIZE' 67 | return CALL_INSN_SIZE; | ^ arch/x86/kernel/paravirt.c:327:4: warning: cast from 'void (*)(struct mmu_gather *, struct page *)' to 'void (*)(struct mmu_gather *, void *)' converts to incompatible function type [-Wcast-function-type-strict] 327 | (void (*)(struct mmu_gather *, void *))tlb_remove_page, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 6 warnings and 4 errors generated.

vim +/CALL_INSN_SIZE +66 arch/x86/kernel/paravirt.c

61 62 static unsigned paravirt_patch_call(void *insn_buff, const void *target, 63 unsigned long addr, unsigned len) 64 {

65 __text_gen_insn(insn_buff, CALL_INSN_OPCODE, 66 (void *)addr, target, CALL_INSN_SIZE);

67 return CALL_INSN_SIZE; 68 } 69