linux-kernel - Re: [PATCH 2/2] hyperv: Enable clean shutdown for root partition with MSHV

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Message-ID: <202510111934.lcAG5ZAN-lkp@intel.com>
Date: Sat, 11 Oct 2025 20:07:57 +0800
From: kernel test robot <lkp@...el.com>
To: Praveen K Paladugu <prapal@...ux.microsoft.com>, kys@...rosoft.com,
	haiyangz@...rosoft.com, wei.liu@...nel.org, decui@...rosoft.com,
	tglx@...utronix.de, mingo@...hat.com, linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org, bp@...en8.de,
	dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
	arnd@...db.de
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	anbelski@...ux.microsoft.com, prapal@...ux.microsoft.com
Subject: Re: [PATCH 2/2] hyperv: Enable clean shutdown for root partition
 with MSHV

Hi Praveen,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tip/x86/core]
[also build test WARNING on arnd-asm-generic/master soc/for-next linus/master v6.17 next-20251010]
[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/Praveen-K-Paladugu/hyperv-Add-definitions-for-MSHV-sleep-state-configuration/20251010-122914
base:   tip/x86/core
patch link:    https://lore.kernel.org/r/20251009160501.6356-3-prapal%40linux.microsoft.com
patch subject: [PATCH 2/2] hyperv: Enable clean shutdown for root partition with MSHV
config: arm64-randconfig-003-20251011 (https://download.01.org/0day-ci/archive/20251011/202510111934.lcAG5ZAN-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 39f292ffa13d7ca0d1edff27ac8fd55024bb4d19)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251011/202510111934.lcAG5ZAN-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/202510111934.lcAG5ZAN-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/hv/hv_common.c:944:50: error: too few arguments provided to function-like macro invocation
     944 |         acpi_os_set_prepare_sleep(&hv_acpi_sleep_handler);
         |                                                         ^
   include/linux/acpi.h:1165:9: note: macro 'acpi_os_set_prepare_sleep' defined here
    1165 | #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
         |         ^
   drivers/hv/hv_common.c:944:2: error: use of undeclared identifier 'acpi_os_set_prepare_sleep'; did you mean 'acpi_os_enter_sleep'?
     944 |         acpi_os_set_prepare_sleep(&hv_acpi_sleep_handler);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~
         |         acpi_os_enter_sleep
   include/acpi/acpiosxf.h:326:13: note: 'acpi_os_enter_sleep' declared here
     326 | acpi_status acpi_os_enter_sleep(u8 sleep_state, u32 rega_value, u32 regb_value);
         |             ^
   drivers/hv/hv_common.c:945:2: error: call to undeclared function 'acpi_os_set_prepare_extended_sleep'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     945 |         acpi_os_set_prepare_extended_sleep(&hv_acpi_extended_sleep_handler);
         |         ^
>> drivers/hv/hv_common.c:944:2: warning: expression result unused [-Wunused-value]
     944 |         acpi_os_set_prepare_sleep(&hv_acpi_sleep_handler);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning and 3 errors generated.


vim +944 drivers/hv/hv_common.c

   939	
   940	int hv_sleep_notifiers_register(void)
   941	{
   942		int ret;
   943	
 > 944		acpi_os_set_prepare_sleep(&hv_acpi_sleep_handler);
 > 945		acpi_os_set_prepare_extended_sleep(&hv_acpi_extended_sleep_handler);

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki