Re: [RFCv2 04/16] x86/kvm: Use bounce buffers for KVM memory protection

From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [RFCv2 04/16] x86/kvm: Use bounce buffers for KVM memory protection
Date: Tue, 20 Oct 2020 16:48:16 +0800	[thread overview]
Message-ID: <202010201604.KeuJw3tV-lkp@intel.com> (raw)
In-Reply-To: <20201020061859.18385-5-kirill.shutemov@linux.intel.com>

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Hi "Kirill,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on tip/x86/core]
[also build test WARNING on kvm/linux-next hnaz-linux-mm/master v5.9]
[cannot apply to next-20201016]
[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]

url:    https://github.com/0day-ci/linux/commits/Kirill-A-Shutemov/KVM-protected-memory-extension/20201020-142130
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 238c91115cd05c71447ea071624a4c9fe661f970
config: x86_64-randconfig-a001-20201020 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ea693a162786d933863ab079648d4261ac0ead47)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/0bdb6c3e82c3106d720106932629f0e3a121fb76
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Kirill-A-Shutemov/KVM-protected-memory-extension/20201020-142130
        git checkout 0bdb6c3e82c3106d720106932629f0e3a121fb76
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   arch/x86/mm/mem_encrypt_common.c:16:6: warning: no previous prototype for function 'force_dma_unencrypted' [-Wmissing-prototypes]
   bool force_dma_unencrypted(struct device *dev)
        ^
   arch/x86/mm/mem_encrypt_common.c:16:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   bool force_dma_unencrypted(struct device *dev)
   ^
   static 
>> arch/x86/mm/mem_encrypt_common.c:41:13: warning: no previous prototype for function 'mem_encrypt_init' [-Wmissing-prototypes]
   void __init mem_encrypt_init(void)
               ^
   arch/x86/mm/mem_encrypt_common.c:41:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init mem_encrypt_init(void)
   ^
   static 
   2 warnings generated.

vim +/mem_encrypt_init +41 arch/x86/mm/mem_encrypt_common.c

    40	
  > 41	void __init mem_encrypt_init(void)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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