linux-kernel - Re: [PATCH v2] vmcoreinfo: Track and log recoverable hardware errors

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Message-ID: <202507220057.iVSR8aqd-lkp@intel.com>
Date: Tue, 22 Jul 2025 00:24:42 +0800
From: kernel test robot <lkp@...el.com>
To: Breno Leitao <leitao@...ian.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>, James Morse <james.morse@....com>,
	Tony Luck <tony.luck@...el.com>, Borislav Petkov <bp@...en8.de>,
	Robert Moore <robert.moore@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>, Hanjun Guo <guohanjun@...wei.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
	Oliver O'Halloran <oohall@...il.com>,
	Bjorn Helgaas <helgaas@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-media@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, acpica-devel@...ts.linux.dev,
	osandov@...ndov.com, xueshuai@...ux.alibaba.com,
	konrad.wilk@...cle.com, linux-edac@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-pci@...r.kernel.org,
	kernel-team@...a.com, Breno Leitao <leitao@...ian.org>
Subject: Re: [PATCH v2] vmcoreinfo: Track and log recoverable hardware errors

Hi Breno,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 97987520025658f30bb787a99ffbd9bbff9ffc9d]

url:    https://github.com/intel-lab-lkp/linux/commits/Breno-Leitao/vmcoreinfo-Track-and-log-recoverable-hardware-errors/20250721-181439
base:   97987520025658f30bb787a99ffbd9bbff9ffc9d
patch link:    https://lore.kernel.org/r/20250721-vmcore_hw_error-v2-1-ab65a6b43c5a%40debian.org
patch subject: [PATCH v2] vmcoreinfo: Track and log recoverable hardware errors
config: i386-buildonly-randconfig-001-20250721 (https://download.01.org/0day-ci/archive/20250722/202507220057.iVSR8aqd-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250722/202507220057.iVSR8aqd-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/202507220057.iVSR8aqd-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from init/initramfs.c:603:
   In file included from include/linux/kexec.h:18:
>> include/linux/vmcore_info.h:91:6: warning: no previous prototype for function 'hwerror_tracking_log' [-Wmissing-prototypes]
      91 | void hwerror_tracking_log(enum hwerror_tracking_source src) {};
         |      ^
   include/linux/vmcore_info.h:91:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
      91 | void hwerror_tracking_log(enum hwerror_tracking_source src) {};
         | ^
         | static 
   1 warning generated.


vim +/hwerror_tracking_log +91 include/linux/vmcore_info.h

    87	
    88	#ifdef CONFIG_VMCORE_INFO
    89	void hwerror_tracking_log(enum hwerror_tracking_source src);
    90	#else
  > 91	void hwerror_tracking_log(enum hwerror_tracking_source src) {};
    92	#endif
    93	

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