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Date:   Wed, 29 Nov 2023 12:08:29 +0800
From:   kernel test robot <>
To:     Nikunj A Dadhania <>,,,,
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]

base:   tip/x86/mm
patch link:
patch subject: [PATCH v6 10/16] x86/sev: Add Secure TSC support for SNP guests
config: x86_64-rhel-8.3-rust (
compiler: clang version 16.0.4 ( ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (

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 <>
| Closes:

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)
   1 warning generated.

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

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

0-DAY CI Kernel Test Service

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