linux-kernel - Re: [PATCH v8 09/15] platform/x86: dell-smbios: Introduce dispatcher for SMM calls

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Message-ID: <201710171048.PGo7Ibvp%fengguang.wu@intel.com>
Date:   Tue, 17 Oct 2017 11:49:31 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Mario Limonciello <mario.limonciello@...l.com>
Cc:     kbuild-all@...org, dvhart@...radead.org,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        platform-driver-x86@...r.kernel.org,
        Andy Lutomirski <luto@...nel.org>, quasisec@...gle.com,
        pali.rohar@...il.com, rjw@...ysocki.net, mjg59@...gle.com,
        hch@....de, Greg KH <greg@...ah.com>,
        Alan Cox <gnomes@...rguk.ukuu.org.uk>,
        Mario Limonciello <mario.limonciello@...l.com>
Subject: Re: [PATCH v8 09/15] platform/x86: dell-smbios: Introduce dispatcher
 for SMM calls

Hi Mario,

[auto build test ERROR on platform-drivers-x86/for-next]
[also build test ERROR on v4.14-rc5 next-20171016]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Mario-Limonciello/Introduce-support-for-Dell-SMBIOS-over-WMI/20171017-103109
base:   git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git for-next
config: x86_64-randconfig-x001-201742 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
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 'location_show':
>> drivers/platform/x86/dell-smbios.c:238:7: error: implicit declaration of function 'capable' [-Werror=implicit-function-declaration]
     if (!capable(CAP_SYS_ADMIN))
          ^~~~~~~
   drivers/platform/x86/dell-smbios.c:238:15: error: 'CAP_SYS_ADMIN' undeclared (first use in this function)
     if (!capable(CAP_SYS_ADMIN))
                  ^~~~~~~~~~~~~
   drivers/platform/x86/dell-smbios.c:238:15: note: each undeclared identifier is reported only once for each function it appears in
   drivers/platform/x86/dell-smbios.c: In function 'value_show':
   drivers/platform/x86/dell-smbios.c:252:15: error: 'CAP_SYS_ADMIN' undeclared (first use in this function)
     if (!capable(CAP_SYS_ADMIN))
                  ^~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   drivers/platform/x86/dell-smbios-smm.c: In function 'dell_smbios_smm_call':
>> drivers/platform/x86/dell-smbios-smm.c:93:16: error: implicit declaration of function 'virt_to_phys' [-Werror=implicit-function-declaration]
     command.ebx = virt_to_phys(buffer);
                   ^~~~~~~~~~~~
   Cyclomatic Complexity 4 include/linux/string.h:memcpy
   Cyclomatic Complexity 1 drivers/platform/x86/dell-smbios-smm.c:dell_smbios_smm_call
   Cyclomatic Complexity 2 drivers/platform/x86/dell-smbios-smm.c:dell_smbios_smm_exit
   Cyclomatic Complexity 5 drivers/platform/x86/dell-smbios-smm.c:dell_smbios_smm_init
   Cyclomatic Complexity 3 drivers/platform/x86/dell-smbios-smm.c:parse_da_table
   Cyclomatic Complexity 2 drivers/platform/x86/dell-smbios-smm.c:find_cmd_address
   Cyclomatic Complexity 1 drivers/platform/x86/dell-smbios-smm.c:_GLOBAL__sub_D_65535_0_dell_smbios_smm_call
   Cyclomatic Complexity 1 drivers/platform/x86/dell-smbios-smm.c:_GLOBAL__sub_I_65535_1_dell_smbios_smm_call
   cc1: some warnings being treated as errors

vim +/capable +238 drivers/platform/x86/dell-smbios.c

0b0f338a Mario Limonciello 2017-10-14  232  
0b0f338a Mario Limonciello 2017-10-14  233  static ssize_t location_show(struct device *dev,
0b0f338a Mario Limonciello 2017-10-14  234  			     struct device_attribute *attr, char *buf)
0b0f338a Mario Limonciello 2017-10-14  235  {
0b0f338a Mario Limonciello 2017-10-14  236  	int i;
0b0f338a Mario Limonciello 2017-10-14  237  
0b0f338a Mario Limonciello 2017-10-14 @238  	if (!capable(CAP_SYS_ADMIN))
0b0f338a Mario Limonciello 2017-10-14  239  		return -EPERM;
0b0f338a Mario Limonciello 2017-10-14  240  
0b0f338a Mario Limonciello 2017-10-14  241  	i = match_attribute(dev, attr);
0b0f338a Mario Limonciello 2017-10-14  242  	if (i > 0)
0b0f338a Mario Limonciello 2017-10-14  243  		return scnprintf(buf, PAGE_SIZE, "%08x", da_tokens[i].location);
0b0f338a Mario Limonciello 2017-10-14  244  	return 0;
0b0f338a Mario Limonciello 2017-10-14  245  }
0b0f338a Mario Limonciello 2017-10-14  246  

:::::: The code at line 238 was first introduced by commit
:::::: 0b0f338a482cc8b1f4807887c866d7095d8d1b16 platform/x86: dell-smbios: Add a sysfs interface for SMBIOS tokens

:::::: TO: Mario Limonciello <mario.limonciello@...l.com>
:::::: CC: 0day robot <fengguang.wu@...el.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
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