linux-kernel - Re: [PATCH] arm64/panic: Unify all three existing notifier blocks

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Date:   Wed, 17 Jun 2020 00:51:21 +0800
From:   kernel test robot <lkp@...el.com>
To:     Anshuman Khandual <anshuman.khandual@....com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        Anshuman Khandual <anshuman.khandual@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Steve Capper <steve.capper@....com>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/panic: Unify all three existing notifier blocks

Hi Anshuman,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on arm64/for-next/core]
[also build test WARNING on soc/for-next v5.8-rc1 next-20200616]
[cannot apply to arm/for-next xlnx/master kvmarm/next]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Anshuman-Khandual/arm64-panic-Unify-all-three-existing-notifier-blocks/20200616-111111
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: arm64-randconfig-r005-20200615 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 487ca07fcc75d52755c9fe2ee05bcb3b6eeeec44)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

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

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> arch/arm64/kernel/setup.c:403:6: warning: no previous prototype for function 'dump_kernel_offset' [-Wmissing-prototypes]
void dump_kernel_offset(void)
^
arch/arm64/kernel/setup.c:403:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void dump_kernel_offset(void)
^
static
1 warning generated.

vim +/dump_kernel_offset +403 arch/arm64/kernel/setup.c

   402	
 > 403	void dump_kernel_offset(void)
   404	{
   405		const unsigned long offset = kaslr_offset();
   406	
   407		if (IS_ENABLED(CONFIG_RANDOMIZE_BASE) && offset > 0) {
   408			pr_emerg("Kernel Offset: 0x%lx from 0x%lx\n",
   409				 offset, KIMAGE_VADDR);
   410			pr_emerg("PHYS_OFFSET: 0x%llx\n", PHYS_OFFSET);
   411		} else {
   412			pr_emerg("Kernel Offset: disabled\n");
   413		}
   414	}
   415	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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