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Date:   Wed, 29 Nov 2023 12:08:29 +0800
From:   kernel test robot <lkp@...el.com>
To:     Nikunj A Dadhania <nikunj@....com>, linux-kernel@...r.kernel.org,
        thomas.lendacky@....com, x86@...nel.org, kvm@...r.kernel.org
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev, bp@...en8.de,
        mingo@...hat.com, tglx@...utronix.de, dave.hansen@...ux.intel.com,
        dionnaglaze@...gle.com, pgonda@...gle.com, seanjc@...gle.com,
        pbonzini@...hat.com, nikunj@....com
Subject: Re: [PATCH v6 10/16] x86/sev: Add Secure TSC support for SNP guests

Hi Nikunj,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tip/x86/mm]
[also build test WARNING on linus/master v6.7-rc3 next-20231128]
[cannot apply to tip/x86/core kvm/queue 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/Nikunj-A-Dadhania/virt-sev-guest-Move-mutex-to-SNP-guest-device-structure/20231128-220026
base:   tip/x86/mm
patch link:    https://lore.kernel.org/r/20231128125959.1810039-11-nikunj%40amd.com
patch subject: [PATCH v6 10/16] x86/sev: Add Secure TSC support for SNP guests
config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20231129/202311291150.VUYNaQGy-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231129/202311291150.VUYNaQGy-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/202311291150.VUYNaQGy-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/x86/mm/mem_encrypt_amd.c:216:13: warning: no previous prototype for function 'amd_enc_init' [-Wmissing-prototypes]
   void __init amd_enc_init(void)
               ^
   arch/x86/mm/mem_encrypt_amd.c:216:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init amd_enc_init(void)
   ^
   static 
   1 warning generated.


vim +/amd_enc_init +216 arch/x86/mm/mem_encrypt_amd.c

   215	
 > 216	void __init amd_enc_init(void)
   217	{
   218		snp_secure_tsc_prepare();
   219	}
   220	

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

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