Hi Peter, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 17befaf8efea2ff937fa7e0d754885a67f67ce71 commit: 822da186955cbcd69b4715b8a307053e6c756f30 [28633/30000] x86/ibt,paravirt: Use text_gen_insn() for paravirt_patch() config: x86_64-buildonly-randconfig-002-20241009 (https://download.01.org/0day-ci/archive/20241009/202410091222.YZTQ9zgW-lkp@i...) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241009/202410091222.YZTQ9zgW-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/202410091222.YZTQ9zgW-lkp@intel.com/ All errors (new ones prefixed by >>):

...

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, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning and 4 errors generated.

vim +/__text_gen_insn +65 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

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