linux-kernel - [intel-tdx:guest-hardening-rebased 24/36] drivers/pci/probe.c:2451:14: error: implicit declaration of function 'cc_platform

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Date:   Sat, 20 Aug 2022 07:42:43 +0800
From:   kernel test robot <lkp@...el.com>
To:     Andi Kleen <ak@...ux.intel.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
Subject: [intel-tdx:guest-hardening-rebased 24/36]
 drivers/pci/probe.c:2451:14: error: implicit declaration of function
 'cc_platform_has'

drivers/pci/pci.c
drivers/pci/probe.c
tree:   https://github.com/intel/tdx.git guest-hardening-rebased
head:   d941f409a509c084250b50a3b5fc1c3c84a596a0
commit: 9fc8d23dbf6bd3cdb60761d86121008b2335cd74 [24/36] x86/tdx: Disable enhanced PCI parsing for TDX
config: microblaze-buildonly-randconfig-r001-20220820 (https://download.01.org/0day-ci/archive/20220820/202208200732.aqYAOVe0-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 12.1.0
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/tdx/commit/9fc8d23dbf6bd3cdb60761d86121008b2335cd74
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx guest-hardening-rebased
        git checkout 9fc8d23dbf6bd3cdb60761d86121008b2335cd74
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=microblaze SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/kernel.h:20,
                    from drivers/pci/probe.c:6:
   drivers/pci/probe.c: In function 'pci_init_capabilities':
>> drivers/pci/probe.c:2451:14: error: implicit declaration of function 'cc_platform_has' [-Werror=implicit-function-declaration]
    2451 |         if (!cc_platform_has(CC_ATTR_GUEST_HARDENED))
         |              ^~~~~~~~~~~~~~~
   include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
      58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
         |                                                    ^~~~
   drivers/pci/probe.c:2451:9: note: in expansion of macro 'if'
    2451 |         if (!cc_platform_has(CC_ATTR_GUEST_HARDENED))
         |         ^~
>> drivers/pci/probe.c:2451:30: error: 'CC_ATTR_GUEST_HARDENED' undeclared (first use in this function)
    2451 |         if (!cc_platform_has(CC_ATTR_GUEST_HARDENED))
         |                              ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
      58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
         |                                                    ^~~~
   drivers/pci/probe.c:2451:9: note: in expansion of macro 'if'
    2451 |         if (!cc_platform_has(CC_ATTR_GUEST_HARDENED))
         |         ^~
   drivers/pci/probe.c:2451:30: note: each undeclared identifier is reported only once for each function it appears in
    2451 |         if (!cc_platform_has(CC_ATTR_GUEST_HARDENED))
         |                              ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
      58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
         |                                                    ^~~~
   drivers/pci/probe.c:2451:9: note: in expansion of macro 'if'
    2451 |         if (!cc_platform_has(CC_ATTR_GUEST_HARDENED))
         |         ^~
   cc1: some warnings being treated as errors


vim +/cc_platform_has +2451 drivers/pci/probe.c

  2448	
  2449	static void pci_init_capabilities(struct pci_dev *dev)
  2450	{
> 2451		if (!cc_platform_has(CC_ATTR_GUEST_HARDENED))
  2452			pci_ea_init(dev);	/* Enhanced Allocation */
  2453	
  2454		pci_msi_init(dev);		/* Disable MSI */
  2455		pci_msix_init(dev);		/* Disable MSI-X */
  2456	
  2457		if (cc_platform_has(CC_ATTR_GUEST_HARDENED))
  2458			return;
  2459	
  2460		/* Buffers for saving PCIe and PCI-X capabilities */
  2461		pci_allocate_cap_save_buffers(dev);
  2462	
  2463		pci_pm_init(dev);		/* Power Management */
  2464		pci_vpd_init(dev);		/* Vital Product Data */
  2465		pci_configure_ari(dev);		/* Alternative Routing-ID Forwarding */
  2466		pci_iov_init(dev);		/* Single Root I/O Virtualization */
  2467		pci_ats_init(dev);		/* Address Translation Services */
  2468		pci_pri_init(dev);		/* Page Request Interface */
  2469		pci_pasid_init(dev);		/* Process Address Space ID */
  2470		pci_acs_init(dev);		/* Access Control Services */
  2471		pci_ptm_init(dev);		/* Precision Time Measurement */
  2472		pci_aer_init(dev);		/* Advanced Error Reporting */
  2473		pci_dpc_init(dev);		/* Downstream Port Containment */
  2474		pci_rcec_init(dev);		/* Root Complex Event Collector */
  2475	
  2476		pcie_report_downtraining(dev);
  2477		pci_init_reset_methods(dev);
  2478	}
  2479	

-- 
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