Re: [PATCH v5] ACPI: processor: Fix evaluating _PDC method when running as Xen dom0

[kernel test robot]

Hi Roger,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on xen-tip/linux-next]
[also build test ERROR on rafael-pm/linux-next linus/master v6.3-rc3 next-20230321]
[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/Roger-Pau-Monne/ACPI-processor-Fix-evaluating-_PDC-method-when-running-as-Xen-dom0/20230321-221950
base:   https://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git linux-next
patch link:    https://lore.kernel.org/r/20230321141904.49177-1-roger.pau%40citrix.com
patch subject: [PATCH v5] ACPI: processor: Fix evaluating _PDC method when running as Xen dom0
config: x86_64-randconfig-a005 (https://download.01.org/0day-ci/archive/20230322/202303221035.BFY5kyh1-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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
        # https://github.com/intel-lab-lkp/linux/commit/4232c8b37a0415e1e828fef4ce522c93a0b925fc
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Roger-Pau-Monne/ACPI-processor-Fix-evaluating-_PDC-method-when-running-as-Xen-dom0/20230321-221950
        git checkout 4232c8b37a0415e1e828fef4ce522c93a0b925fc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202303221035.BFY5kyh1-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from arch/x86/xen/suspend_hvm.c:4:
>> include/xen/xen.h:79:2: error: implicit declaration of function 'BUG' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
           BUG();
           ^
   1 error generated.


vim +/BUG +79 include/xen/xen.h

    73	
    74	#if defined(CONFIG_XEN_DOM0) && defined(CONFIG_ACPI) && defined(CONFIG_X86)
    75	bool __init xen_processor_present(uint32_t acpi_id);
    76	#else
    77	static inline bool xen_processor_present(uint32_t acpi_id)
    78	{
  > 79		BUG();
    80		return false;
    81	}
    82	#endif
    83	

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https://github.com/intel/lkp-tests