linux-kernel - Re: [PATCH v5 2/3] hyperv: Use reboot notifier to configure sleep state

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Message-ID: <202511182134.X8qi5PeT-lkp@intel.com>
Date: Tue, 18 Nov 2025 21:38:28 +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: oe-kbuild-all@...ts.linux.dev, anbelski@...ux.microsoft.com,
	prapal@...ux.microsoft.com, easwar.hariharan@...ux.microsoft.com,
	nunodasneves@...ux.microsoft.com, skinsburskii@...ux.microsoft.com
Subject: Re: [PATCH v5 2/3] hyperv: Use reboot notifier to configure sleep
 state

Hi Praveen,

kernel test robot noticed the following build errors:

[auto build test ERROR on next-20251117]
[cannot apply to tip/x86/core linus/master v6.18-rc6 v6.18-rc5 v6.18-rc4 v6.18-rc6]
[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/20251118-051204
base:   next-20251117
patch link:    https://lore.kernel.org/r/20251117210855.108126-3-prapal%40linux.microsoft.com
patch subject: [PATCH v5 2/3] hyperv: Use reboot notifier to configure sleep state
config: i386-randconfig-141-20251118 (https://download.01.org/0day-ci/archive/20251118/202511182134.X8qi5PeT-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251118/202511182134.X8qi5PeT-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/202511182134.X8qi5PeT-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/hv/mshv_common.c:210:6: error: redefinition of 'hv_sleep_notifiers_register'
     210 | void hv_sleep_notifiers_register(void)
         |      ^
   arch/x86/include/asm/mshyperv.h:188:20: note: previous definition is here
     188 | static inline void hv_sleep_notifiers_register(void) {};
         |                    ^
   1 error generated.


vim +/hv_sleep_notifiers_register +210 drivers/hv/mshv_common.c

   209	
 > 210	void hv_sleep_notifiers_register(void)

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