Hi Michał,

[auto build test ERROR on platform-drivers-x86/for-next]
[also build test ERROR on v4.4 next-20160122]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Micha-K-pie/Common-Dell-SMBIOS-API/20160122-223550
base:   git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git for-next
config: x86_64-randconfig-n0-01240935 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/platform/x86/dell-smbios.c: In function 'dell_send_request':
>> drivers/platform/x86/dell-smbios.c:71:16: error: implicit declaration of function 'virt_to_phys' [-Werror=implicit-function-declaration]
     command.ebx = virt_to_phys(buffer);
                   ^
   cc1: some warnings being treated as errors

vim +/virt_to_phys +71 drivers/platform/x86/dell-smbios.c

    65	{
    66		struct smi_cmd command;
    67	
    68		command.magic = SMI_CMD_MAGIC;
    69		command.command_address = da_command_address;
    70		command.command_code = da_command_code;
  > 71		command.ebx = virt_to_phys(buffer);
    72		command.ecx = 0x42534931;
    73	
    74		buffer->class = class;

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0-DAY kernel test infrastructure                Open Source Technology Center
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