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Message-ID: <202410050518.LFXqJEpd-lkp@intel.com>
Date: Sat, 5 Oct 2024 05:55:22 +0800
From: kernel test robot <lkp@...el.com>
To: Nuno Das Neves <nunodasneves@...ux.microsoft.com>,
	linux-hyperv@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	iommu@...ts.linux.dev, netdev@...r.kernel.org,
	linux-pci@...r.kernel.org, linux-arch@...r.kernel.org,
	virtualization@...ts.linux.dev
Cc: oe-kbuild-all@...ts.linux.dev, kys@...rosoft.com,
	haiyangz@...rosoft.com, wei.liu@...nel.org, decui@...rosoft.com,
	catalin.marinas@....com, will@...nel.org, luto@...nel.org,
	tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
	dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
	seanjc@...gle.com, pbonzini@...hat.com, peterz@...radead.org,
	daniel.lezcano@...aro.org, joro@...tes.org, robin.murphy@....com,
	davem@...emloft.net, edumazet@...gle.com
Subject: Re: [PATCH 5/5] hyperv: Use hvhdk.h instead of hyperv-tlfs.h in
 Hyper-V code

Hi Nuno,

kernel test robot noticed the following build errors:

[auto build test ERROR on tip/x86/core]
[also build test ERROR on arm64/for-next/core kvm/queue linus/master v6.12-rc1 next-20241004]
[cannot apply to kvm/linux-next]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Nuno-Das-Neves/hyperv-Move-hv_connection_id-to-hyperv-tlfs-h/20241004-035418
base:   tip/x86/core
patch link:    https://lore.kernel.org/r/1727985064-18362-6-git-send-email-nunodasneves%40linux.microsoft.com
patch subject: [PATCH 5/5] hyperv: Use hvhdk.h instead of hyperv-tlfs.h in Hyper-V code
config: x86_64-allmodconfig (https://download.01.org/0day-ci/archive/20241005/202410050518.LFXqJEpd-lkp@intel.com/config)
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/20241005/202410050518.LFXqJEpd-lkp@intel.com/reproduce)

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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410050518.LFXqJEpd-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/x86/hyperv/hv_init.c:428:19: error: invalid application of 'sizeof' to an incomplete type 'struct hv_get_vp_registers_input'
     428 |         memset(input, 0, struct_size(input, element, 1));
         |         ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/overflow.h:372:9: note: expanded from macro 'struct_size'
     372 |                 sizeof(*(p)) + flex_array_size(p, member, count),       \
         |                       ^
   include/linux/fortify-string.h:512:52: note: expanded from macro 'memset'
     512 | #define memset(p, c, s) __fortify_memset_chk(p, c, s,                   \
         |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
     513 |                 __struct_size(p), __member_size(p))
         |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/fortify-string.h:502:35: note: expanded from macro '__fortify_memset_chk'
     502 |         size_t __fortify_size = (size_t)(size);                         \
         |                                          ^~~~
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
>> arch/x86/hyperv/hv_init.c:428:19: error: incomplete definition of type 'struct hv_get_vp_registers_input'
     428 |         memset(input, 0, struct_size(input, element, 1));
         |         ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/overflow.h:372:18: note: expanded from macro 'struct_size'
     372 |                 sizeof(*(p)) + flex_array_size(p, member, count),       \
         |                                ^
   include/linux/overflow.h:356:24: note: expanded from macro 'flex_array_size'
     356 |                 (count) * sizeof(*(p)->member) + __must_be_array((p)->member),  \
         |                                      ^
   include/linux/fortify-string.h:512:52: note: expanded from macro 'memset'
     512 | #define memset(p, c, s) __fortify_memset_chk(p, c, s,                   \
         |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
     513 |                 __struct_size(p), __member_size(p))
         |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/fortify-string.h:502:35: note: expanded from macro '__fortify_memset_chk'
     502 |         size_t __fortify_size = (size_t)(size);                         \
         |                                          ^~~~
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
>> arch/x86/hyperv/hv_init.c:428:19: error: incomplete definition of type 'struct hv_get_vp_registers_input'
     428 |         memset(input, 0, struct_size(input, element, 1));
         |         ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/overflow.h:372:18: note: expanded from macro 'struct_size'
     372 |                 sizeof(*(p)) + flex_array_size(p, member, count),       \
         |                                ^
   include/linux/overflow.h:356:55: note: expanded from macro 'flex_array_size'
     356 |                 (count) * sizeof(*(p)->member) + __must_be_array((p)->member),  \
         |                                                                     ^
   include/linux/compiler.h:243:59: note: expanded from macro '__must_be_array'
     243 | #define __must_be_array(a)      BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
         |                                                                ^
   note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/build_bug.h:16:62: note: expanded from macro 'BUILD_BUG_ON_ZERO'
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                              ^
   include/linux/fortify-string.h:512:52: note: expanded from macro 'memset'
     512 | #define memset(p, c, s) __fortify_memset_chk(p, c, s,                   \
         |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
     513 |                 __struct_size(p), __member_size(p))
         |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/fortify-string.h:502:35: note: expanded from macro '__fortify_memset_chk'
     502 |         size_t __fortify_size = (size_t)(size);                         \
         |                                          ^~~~
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
>> arch/x86/hyperv/hv_init.c:428:19: error: incomplete definition of type 'struct hv_get_vp_registers_input'
     428 |         memset(input, 0, struct_size(input, element, 1));
         |         ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/overflow.h:372:18: note: expanded from macro 'struct_size'
     372 |                 sizeof(*(p)) + flex_array_size(p, member, count),       \
         |                                ^
   include/linux/overflow.h:357:30: note: expanded from macro 'flex_array_size'
     357 |                 size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member)))
         |                                            ^
   include/linux/fortify-string.h:512:52: note: expanded from macro 'memset'
     512 | #define memset(p, c, s) __fortify_memset_chk(p, c, s,                   \
         |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
     513 |                 __struct_size(p), __member_size(p))
         |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/fortify-string.h:502:35: note: expanded from macro '__fortify_memset_chk'
     502 |         size_t __fortify_size = (size_t)(size);                         \
         |                                          ^~~~
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
>> arch/x86/hyperv/hv_init.c:428:19: error: incomplete definition of type 'struct hv_get_vp_registers_input'
     428 |         memset(input, 0, struct_size(input, element, 1));
         |         ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/overflow.h:372:18: note: expanded from macro 'struct_size'
     372 |                 sizeof(*(p)) + flex_array_size(p, member, count),       \
         |                                ^
   include/linux/overflow.h:357:61: note: expanded from macro 'flex_array_size'
     357 |                 size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member)))
         |                                                                           ^
   include/linux/compiler.h:243:59: note: expanded from macro '__must_be_array'
     243 | #define __must_be_array(a)      BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
         |                                                                ^
   note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/build_bug.h:16:62: note: expanded from macro 'BUILD_BUG_ON_ZERO'
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                              ^
   include/linux/fortify-string.h:512:52: note: expanded from macro 'memset'
     512 | #define memset(p, c, s) __fortify_memset_chk(p, c, s,                   \
         |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
     513 |                 __struct_size(p), __member_size(p))
         |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/fortify-string.h:502:35: note: expanded from macro '__fortify_memset_chk'
     502 |         size_t __fortify_size = (size_t)(size);                         \
         |                                          ^~~~
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
   arch/x86/hyperv/hv_init.c:429:7: error: incomplete definition of type 'struct hv_get_vp_registers_input'
     429 |         input->header.partitionid = HV_PARTITION_ID_SELF;
         |         ~~~~~^
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
   arch/x86/hyperv/hv_init.c:430:7: error: incomplete definition of type 'struct hv_get_vp_registers_input'
     430 |         input->header.vpindex = HV_VP_INDEX_SELF;
         |         ~~~~~^
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
   arch/x86/hyperv/hv_init.c:431:7: error: incomplete definition of type 'struct hv_get_vp_registers_input'
     431 |         input->header.inputvtl = 0;
         |         ~~~~~^
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
   arch/x86/hyperv/hv_init.c:432:7: error: incomplete definition of type 'struct hv_get_vp_registers_input'
     432 |         input->element[0].name0 = HV_X64_REGISTER_VSM_VP_STATUS;
         |         ~~~~~^
   arch/x86/hyperv/hv_init.c:419:9: note: forward declaration of 'struct hv_get_vp_registers_input'
     419 |         struct hv_get_vp_registers_input *input;
         |                ^
>> arch/x86/hyperv/hv_init.c:436:15: error: incomplete definition of type 'struct hv_get_vp_registers_output'
     436 |                 ret = output->as64.low & HV_X64_VTL_MASK;
         |                       ~~~~~~^
   arch/x86/hyperv/hv_init.c:420:9: note: forward declaration of 'struct hv_get_vp_registers_output'
     420 |         struct hv_get_vp_registers_output *output;
         |                ^
   10 errors generated.
--
>> arch/x86/hyperv/hv_vtl.c:154:27: error: use of undeclared identifier 'HVCALL_ENABLE_VP_VTL'
     154 |         status = hv_do_hypercall(HVCALL_ENABLE_VP_VTL, input, NULL);
         |                                  ^
>> arch/x86/hyperv/hv_vtl.c:189:25: error: invalid application of 'sizeof' to an incomplete type 'struct hv_get_vp_from_apic_id_in'
     189 |         memset(input, 0, sizeof(*input));
         |                                ^~~~~~~~
   include/linux/fortify-string.h:512:52: note: expanded from macro 'memset'
     512 | #define memset(p, c, s) __fortify_memset_chk(p, c, s,                   \
         |                                                    ^
   include/linux/fortify-string.h:502:35: note: expanded from macro '__fortify_memset_chk'
     502 |         size_t __fortify_size = (size_t)(size);                         \
         |                                          ^~~~
   arch/x86/hyperv/hv_vtl.c:183:9: note: forward declaration of 'struct hv_get_vp_from_apic_id_in'
     183 |         struct hv_get_vp_from_apic_id_in *input;
         |                ^
>> arch/x86/hyperv/hv_vtl.c:190:7: error: incomplete definition of type 'struct hv_get_vp_from_apic_id_in'
     190 |         input->partition_id = HV_PARTITION_ID_SELF;
         |         ~~~~~^
   arch/x86/hyperv/hv_vtl.c:183:9: note: forward declaration of 'struct hv_get_vp_from_apic_id_in'
     183 |         struct hv_get_vp_from_apic_id_in *input;
         |                ^
   arch/x86/hyperv/hv_vtl.c:191:7: error: incomplete definition of type 'struct hv_get_vp_from_apic_id_in'
     191 |         input->apic_ids[0] = apic_id;
         |         ~~~~~^
   arch/x86/hyperv/hv_vtl.c:183:9: note: forward declaration of 'struct hv_get_vp_from_apic_id_in'
     183 |         struct hv_get_vp_from_apic_id_in *input;
         |                ^
>> arch/x86/hyperv/hv_vtl.c:195:38: error: use of undeclared identifier 'HVCALL_GET_VP_ID_FROM_APIC_ID'
     195 |         control = HV_HYPERCALL_REP_COMP_1 | HVCALL_GET_VP_ID_FROM_APIC_ID;
         |                                             ^
   5 errors generated.


vim +428 arch/x86/hyperv/hv_init.c

99a0f46af6a771 Wei Liu        2021-02-03  414  
f2a55d08d7e1a5 Saurabh Sengar 2023-09-19  415  #if IS_ENABLED(CONFIG_HYPERV_VTL_MODE)
8387ce06d70bbb Tianyu Lan     2023-08-18  416  static u8 __init get_vtl(void)
8387ce06d70bbb Tianyu Lan     2023-08-18  417  {
8387ce06d70bbb Tianyu Lan     2023-08-18  418  	u64 control = HV_HYPERCALL_REP_COMP_1 | HVCALL_GET_VP_REGISTERS;
8387ce06d70bbb Tianyu Lan     2023-08-18 @419  	struct hv_get_vp_registers_input *input;
8387ce06d70bbb Tianyu Lan     2023-08-18  420  	struct hv_get_vp_registers_output *output;
8387ce06d70bbb Tianyu Lan     2023-08-18  421  	unsigned long flags;
8387ce06d70bbb Tianyu Lan     2023-08-18  422  	u64 ret;
8387ce06d70bbb Tianyu Lan     2023-08-18  423  
8387ce06d70bbb Tianyu Lan     2023-08-18  424  	local_irq_save(flags);
8387ce06d70bbb Tianyu Lan     2023-08-18  425  	input = *this_cpu_ptr(hyperv_pcpu_input_arg);
8387ce06d70bbb Tianyu Lan     2023-08-18  426  	output = (struct hv_get_vp_registers_output *)input;
8387ce06d70bbb Tianyu Lan     2023-08-18  427  
8387ce06d70bbb Tianyu Lan     2023-08-18 @428  	memset(input, 0, struct_size(input, element, 1));
8387ce06d70bbb Tianyu Lan     2023-08-18  429  	input->header.partitionid = HV_PARTITION_ID_SELF;
8387ce06d70bbb Tianyu Lan     2023-08-18  430  	input->header.vpindex = HV_VP_INDEX_SELF;
8387ce06d70bbb Tianyu Lan     2023-08-18  431  	input->header.inputvtl = 0;
8387ce06d70bbb Tianyu Lan     2023-08-18  432  	input->element[0].name0 = HV_X64_REGISTER_VSM_VP_STATUS;
8387ce06d70bbb Tianyu Lan     2023-08-18  433  
8387ce06d70bbb Tianyu Lan     2023-08-18  434  	ret = hv_do_hypercall(control, input, output);
8387ce06d70bbb Tianyu Lan     2023-08-18  435  	if (hv_result_success(ret)) {
8387ce06d70bbb Tianyu Lan     2023-08-18 @436  		ret = output->as64.low & HV_X64_VTL_MASK;
8387ce06d70bbb Tianyu Lan     2023-08-18  437  	} else {
f2a55d08d7e1a5 Saurabh Sengar 2023-09-19  438  		pr_err("Failed to get VTL(error: %lld) exiting...\n", ret);
f2a55d08d7e1a5 Saurabh Sengar 2023-09-19  439  		BUG();
8387ce06d70bbb Tianyu Lan     2023-08-18  440  	}
8387ce06d70bbb Tianyu Lan     2023-08-18  441  
8387ce06d70bbb Tianyu Lan     2023-08-18  442  	local_irq_restore(flags);
8387ce06d70bbb Tianyu Lan     2023-08-18  443  	return ret;
8387ce06d70bbb Tianyu Lan     2023-08-18  444  }
f2a55d08d7e1a5 Saurabh Sengar 2023-09-19  445  #else
f2a55d08d7e1a5 Saurabh Sengar 2023-09-19  446  static inline u8 get_vtl(void) { return 0; }
f2a55d08d7e1a5 Saurabh Sengar 2023-09-19  447  #endif
8387ce06d70bbb Tianyu Lan     2023-08-18  448  

-- 
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