Hi Elena,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on arm64/for-next/core]
[cannot apply to kvmarm/next soc/for-next arm/for-next xlnx/master v5.11-rc3 
next-20210115]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    
https://github.com/0day-ci/linux/commits/Elena-Petrova/UBSan-Enablement-for-hyp-nVHE-code/20210115-112509
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git 
for-next/core
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # 
https://github.com/0day-ci/linux/commit/aba3219bbab3bb5c7f037fe7b6c6c783942bc954
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Elena-Petrova/UBSan-Enablement-for-hyp-nVHE-code/20210115-112509
        git checkout aba3219bbab3bb5c7f037fe7b6c6c783942bc954
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All errors (new ones prefixed by >>):

   In file included from arch/arm64/kvm/hyp/nvhe/ubsan.c:9:
>> arch/arm64/kvm/hyp/nvhe/ubsan.c:18:48: error: conflicting types for 
>> 'kvm_ubsan_buffer'
      18 | DEFINE_KVM_DEBUG_BUFFER(struct kvm_ubsan_info, kvm_ubsan_buffer,
         |                                                ^~~~~~~~~~~~~~~~
   include/linux/percpu-defs.h:95:44: note: in definition of macro 
'DEFINE_PER_CPU_SECTION'
      95 |  __PCPU_ATTRS(sec) __weak __typeof__(type) name
         |                                            ^~~~
   arch/arm64/include/asm/kvm_debug_buffer.h:14:2: note: in expansion of macro 
'DEFINE_PER_CPU'
      14 |  DEFINE_PER_CPU(type_name, buffer_name)[size];   \
         |  ^~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:18:1: note: in expansion of macro 
'DEFINE_KVM_DEBUG_BUFFER'
      18 | DEFINE_KVM_DEBUG_BUFFER(struct kvm_ubsan_info, kvm_ubsan_buffer,
         | ^~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:18:48: note: previous declaration of 
'kvm_ubsan_buffer' was here
      18 | DEFINE_KVM_DEBUG_BUFFER(struct kvm_ubsan_info, kvm_ubsan_buffer,
         |                                                ^~~~~~~~~~~~~~~~
   include/linux/percpu-defs.h:94:44: note: in definition of macro 
'DEFINE_PER_CPU_SECTION'
      94 |  extern __PCPU_ATTRS(sec) __typeof__(type) name;   \
         |                                            ^~~~
   arch/arm64/include/asm/kvm_debug_buffer.h:14:2: note: in expansion of macro 
'DEFINE_PER_CPU'
      14 |  DEFINE_PER_CPU(type_name, buffer_name)[size];   \
         |  ^~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:18:1: note: in expansion of macro 
'DEFINE_KVM_DEBUG_BUFFER'
      18 | DEFINE_KVM_DEBUG_BUFFER(struct kvm_ubsan_info, kvm_ubsan_buffer,
         | ^~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:33:6: warning: no previous prototype for 
'__ubsan_handle_add_overflow' [-Wmissing-prototypes]
      33 | void __ubsan_handle_add_overflow(void *_data, void *lhs, void *rhs) 
{}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:35:6: warning: no previous prototype for 
'__ubsan_handle_sub_overflow' [-Wmissing-prototypes]
      35 | void __ubsan_handle_sub_overflow(void *_data, void *lhs, void *rhs) 
{}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:37:6: warning: no previous prototype for 
'__ubsan_handle_mul_overflow' [-Wmissing-prototypes]
      37 | void __ubsan_handle_mul_overflow(void *_data, void *lhs, void *rhs) 
{}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:39:6: warning: no previous prototype for 
'__ubsan_handle_negate_overflow' [-Wmissing-prototypes]
      39 | void __ubsan_handle_negate_overflow(void *_data, void *old_val) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:41:6: warning: no previous prototype for 
'__ubsan_handle_divrem_overflow' [-Wmissing-prototypes]
      41 | void __ubsan_handle_divrem_overflow(void *_data, void *lhs, void 
*rhs) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:43:6: warning: no previous prototype for 
'__ubsan_handle_type_mismatch' [-Wmissing-prototypes]
      43 | void __ubsan_handle_type_mismatch(struct type_mismatch_data *data, 
void *ptr) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:45:6: warning: no previous prototype for 
'__ubsan_handle_type_mismatch_v1' [-Wmissing-prototypes]
      45 | void __ubsan_handle_type_mismatch_v1(void *_data, void *ptr) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:47:6: warning: no previous prototype for 
'__ubsan_handle_out_of_bounds' [-Wmissing-prototypes]
      47 | void __ubsan_handle_out_of_bounds(void *_data, void *index) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:49:6: warning: no previous prototype for 
'__ubsan_handle_shift_out_of_bounds' [-Wmissing-prototypes]
      49 | void __ubsan_handle_shift_out_of_bounds(void *_data, void *lhs, void 
*rhs) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:51:6: warning: no previous prototype for 
'__ubsan_handle_builtin_unreachable' [-Wmissing-prototypes]
      51 | void __ubsan_handle_builtin_unreachable(void *_data) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp/nvhe/ubsan.c:53:6: warning: no previous prototype for 
'__ubsan_handle_load_invalid_value' [-Wmissing-prototypes]
      53 | void __ubsan_handle_load_invalid_value(void *_data, void *val) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/kvm_ubsan_buffer +18 arch/arm64/kvm/hyp/nvhe/ubsan.c

   > 9  #include <linux/percpu-defs.h>
    10  #include <linux/kvm_host.h>
    11  #include <asm/kvm_arm.h>
    12  #include <asm/kvm_asm.h>
    13  #include <asm/kvm_ubsan.h>
    14  #include <asm/kvm_debug_buffer.h>
    15  #include <kvm/arm_pmu.h>
    16  #include <ubsan.h>
    17  
  > 18  DEFINE_KVM_DEBUG_BUFFER(struct kvm_ubsan_info, kvm_ubsan_buffer,
    19                  kvm_ubsan_buff_wr_ind, KVM_UBSAN_BUFFER_SIZE);
    20  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

Attachment: .config.gz
Description: application/gzip

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