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Date: Wed, 8 May 2024 02:14:59 +0800
From: kernel test robot <lkp@intel.com>
To: Perry Yuan <perry.yuan@amd.com>, rafael.j.wysocki@intel.com,
	Mario.Limonciello@amd.com, viresh.kumar@linaro.org,
	Ray.Huang@amd.com, gautham.shenoy@amd.com, Borislav.Petkov@amd.com
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	Alexander.Deucher@amd.com, Xinmei.Huang@amd.com,
	Xiaojian.Du@amd.com, Li.Meng@amd.com, linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 09/11] cpufreq: amd-pstate: implement heterogeneous core
 topology for highest performance initialization
Message-ID: <202405080122.4pEEcR2C-lkp@intel.com>
References: <731a28ea8dda4ca1db64f673c87770de4646290b.1715065568.git.perry.yuan@amd.com>
Precedence: bulk
MIME-Version: 1.0
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In-Reply-To: <731a28ea8dda4ca1db64f673c87770de4646290b.1715065568.git.perry.yuan@amd.com>

Hi Perry,

kernel test robot noticed the following build warnings:

[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on rafael-pm/bleeding-edge next-20240507]
[cannot apply to tip/x86/core linus/master v6.9-rc7]
[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/Perry-Yuan/cpufreq-amd-pstate-optimiza-the-initial-frequency-values-verification/20240507-151930
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/731a28ea8dda4ca1db64f673c87770de4646290b.1715065568.git.perry.yuan%40amd.com
patch subject: [PATCH 09/11] cpufreq: amd-pstate: implement heterogeneous core topology for highest performance initialization
config: x86_64-buildonly-randconfig-001-20240507 (https://download.01.org/0day-ci/archive/20240508/202405080122.4pEEcR2C-lkp@intel.com/config)
compiler: clang version 18.1.4 (https://github.com/llvm/llvm-project e6c3289804a67ea0bb6a86fadbe454dd93b8d855)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240508/202405080122.4pEEcR2C-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405080122.4pEEcR2C-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/x86/kernel/asm-offsets.c:9:
   In file included from include/linux/crypto.h:15:
   In file included from include/linux/completion.h:12:
   In file included from include/linux/swait.h:7:
   In file included from include/linux/spinlock.h:60:
   In file included from include/linux/thread_info.h:60:
   In file included from arch/x86/include/asm/thread_info.h:59:
   In file included from arch/x86/include/asm/cpufeature.h:5:
>> arch/x86/include/asm/processor.h:690:51: warning: non-void function does not return a value [-Wreturn-type]
     690 | static inline int amd_get_this_core_type(void)          { }
         |                                                           ^
   1 warning generated.
--
   In file included from drivers/usb/dwc2/hcd_ddma.c:12:
   In file included from include/linux/module.h:13:
   In file included from include/linux/stat.h:19:
   In file included from include/linux/time.h:60:
   In file included from include/linux/time32.h:13:
   In file included from include/linux/timex.h:67:
   In file included from arch/x86/include/asm/timex.h:5:
>> arch/x86/include/asm/processor.h:690:51: warning: non-void function does not return a value [-Wreturn-type]
     690 | static inline int amd_get_this_core_type(void)          { }
         |                                                           ^
   drivers/usb/dwc2/hcd_ddma.c:555:16: warning: variable 'n_desc' set but not used [-Wunused-but-set-variable]
     555 |         u16 idx, inc, n_desc = 0, ntd_max = 0;
         |                       ^
   2 warnings generated.
--
   In file included from arch/x86/kernel/asm-offsets.c:9:
   In file included from include/linux/crypto.h:15:
   In file included from include/linux/completion.h:12:
   In file included from include/linux/swait.h:7:
   In file included from include/linux/spinlock.h:60:
   In file included from include/linux/thread_info.h:60:
   In file included from arch/x86/include/asm/thread_info.h:59:
   In file included from arch/x86/include/asm/cpufeature.h:5:
>> arch/x86/include/asm/processor.h:690:51: warning: non-void function does not return a value [-Wreturn-type]
     690 | static inline int amd_get_this_core_type(void)          { }
         |                                                           ^
   1 warning generated.


vim +690 arch/x86/include/asm/processor.h

   680	
   681	#ifdef CONFIG_CPU_SUP_AMD
   682	extern u32 amd_get_highest_perf(void);
   683	extern void amd_clear_divider(void);
   684	extern void amd_check_microcode(void);
   685	extern int amd_get_this_core_type(void);
   686	#else
   687	static inline u32 amd_get_highest_perf(void)		{ return 0; }
   688	static inline void amd_clear_divider(void)		{ }
   689	static inline void amd_check_microcode(void)		{ }
 > 690	static inline int amd_get_this_core_type(void)		{ }
   691	#endif
   692	

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