Re: [patch 1/2] x86,module: Detect VMX modules and disable Split-Lock-Detect

From: kbuild test robot <lkp@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: kbuild-all@lists.01.org, LKML <linux-kernel@vger.kernel.org>,
	"x86@kernel.org, Kenneth R. Crudup " <kenny@panix.com>,
	"Peter Zijlstra (Intel)" <peterz@infradead.org>,
	Paolo Bonzini <pbonzini@redhat.com>, Jessica Yu <jeyu@kernel.org>,
	Fenghua Yu <fenghua.yu@intel.com>,
	Xiaoyao Li <xiaoyao.li@intel.com>, Nadav Amit <namit@vmware.com>,
	Thomas Hellstrom <thellstrom@vmware.com>,
	Sean Christopherson <sean.j.christopherson@intel.com>,
	Tony Luck <tony.luck@intel.com>,
	Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [patch 1/2] x86,module: Detect VMX modules and disable Split-Lock-Detect
Date: Fri, 3 Apr 2020 19:29:37 +0800	[thread overview]
Message-ID: <202004031956.TbiHolcZ%lkp@intel.com> (raw)
In-Reply-To: <20200402124205.242674296@linutronix.de>

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Hi Thomas,

I love your patch! Yet something to improve:

[auto build test ERROR on tip/auto-latest]
[also build test ERROR on next-20200403]
[cannot apply to jeyu/modules-next tip/x86/core v5.6]
[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/Thomas-Gleixner/x86-Prevent-Split-Lock-Detection-wreckage-on-VMX-hypervisors/20200403-171430
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git ee8bac724cc7767dcf9480afb656318994f22c3d
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=um SUBARCH=x86_64

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

   /usr/bin/ld: arch/x86/um/../kernel/module.o: in function `module_finalize':
>> module.c:(.text+0x315): undefined reference to `split_lock_validate_module_text'
>> collect2: error: ld returned 1 exit status
--
   In file included from arch/x86/um/../kernel/module.c:27:0:
>> arch/x86/include/asm/cpu.h:38:31: warning: 'struct cpuinfo_x86' declared inside parameter list will not be visible outside of this definition or declaration
    int mwait_usable(const struct cpuinfo_x86 *);
                                  ^~~~~~~~~~~
   arch/x86/include/asm/cpu.h:44:49: warning: 'struct cpuinfo_x86' declared inside parameter list will not be visible outside of this definition or declaration
    extern void __init cpu_set_core_cap_bits(struct cpuinfo_x86 *c);
                                                    ^~~~~~~~~~~

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

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