linux-kernel - Re: [PATCH v8 06/16] CXL/PCI: Introduce CXL uncorrectable protocol error 'recovery'

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Message-ID: <202503271130.BAWzwRWM-lkp@intel.com>
Date: Thu, 27 Mar 2025 11:37:21 +0800
From: kernel test robot <lkp@...el.com>
To: Terry Bowman <terry.bowman@....com>, linux-cxl@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	nifan.cxl@...il.com, dave@...olabs.net, jonathan.cameron@...wei.com,
	dave.jiang@...el.com, alison.schofield@...el.com,
	vishal.l.verma@...el.com, dan.j.williams@...el.com,
	bhelgaas@...gle.com, mahesh@...ux.ibm.com, ira.weiny@...el.com,
	oohall@...il.com, Benjamin.Cheatham@....com, rrichter@....com,
	nathan.fontenot@....com, Smita.KoralahalliChannabasappa@....com,
	lukas@...ner.de, ming.li@...omail.com,
	PradeepVineshReddy.Kodamati@....com
Cc: oe-kbuild-all@...ts.linux.dev
Subject: Re: [PATCH v8 06/16] CXL/PCI: Introduce CXL uncorrectable protocol
 error 'recovery'

Hi Terry,

kernel test robot noticed the following build warnings:

[auto build test WARNING on aae0594a7053c60b82621136257c8b648c67b512]

url:    https://github.com/intel-lab-lkp/linux/commits/Terry-Bowman/PCI-CXL-Introduce-PCIe-helper-function-pcie_is_cxl/20250327-095738
base:   aae0594a7053c60b82621136257c8b648c67b512
patch link:    https://lore.kernel.org/r/20250327014717.2988633-7-terry.bowman%40amd.com
patch subject: [PATCH v8 06/16] CXL/PCI: Introduce CXL uncorrectable protocol error 'recovery'
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20250327/202503271130.BAWzwRWM-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250327/202503271130.BAWzwRWM-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202503271130.BAWzwRWM-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from lib/iomap.c:7:
>> include/linux/pci.h:1873:6: warning: no previous prototype for 'pci_aer_clear_fatal_status' [-Wmissing-prototypes]
    1873 | void pci_aer_clear_fatal_status(struct pci_dev *dev) { };
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from drivers/pci/probe.c:9:
>> include/linux/pci.h:1873:6: warning: no previous prototype for 'pci_aer_clear_fatal_status' [-Wmissing-prototypes]
    1873 | void pci_aer_clear_fatal_status(struct pci_dev *dev) { };
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/pci/probe.c:16:
   include/linux/aer.h:76:20: error: redefinition of 'pci_aer_clear_fatal_status'
      76 | static inline void pci_aer_clear_fatal_status(struct pci_dev *dev) { }
         |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/pci/probe.c:9:
   include/linux/pci.h:1873:6: note: previous definition of 'pci_aer_clear_fatal_status' with type 'void(struct pci_dev *)'
    1873 | void pci_aer_clear_fatal_status(struct pci_dev *dev) { };
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/pci_aer_clear_fatal_status +1873 include/linux/pci.h

  1867	
  1868	#ifdef CONFIG_PCIEAER
  1869	bool pci_aer_available(void);
  1870	void pci_aer_clear_fatal_status(struct pci_dev *dev);
  1871	#else
  1872	static inline bool pci_aer_available(void) { return false; }
> 1873	void pci_aer_clear_fatal_status(struct pci_dev *dev) { };
  1874	#endif
  1875	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki