linux-kernel - [tip:smp/hotplug 5/6] arch/x86/xen/enlighten.c:1522:2: error: implicit declaration of function 'xen_pvh_early_cpu

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Message-ID: <201607290042.Cg7WolYT%fengguang.wu@intel.com>
Date:	Fri, 29 Jul 2016 00:14:46 +0800
From:	kbuild test robot <fengguang.wu@...el.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	tipbuild@...or.com, Thomas Gleixner <tglx@...utronix.de>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>, jgross@...e.com
Subject: [tip:smp/hotplug 5/6] arch/x86/xen/enlighten.c:1522:2: error:
 implicit declaration of function 'xen_pvh_early_cpu_init'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git smp/hotplug
head:   c713c8cb2055f5f3b32ee4315be589177a2658cc
commit: 854e9fa5a56a9771fad4701a427e4844d2cbade1 [5/6] xen/x86: Define stubs for xen_smp_intr_init/xen_smp_intr_free
config: x86_64-randconfig-x011-201630 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        git checkout 854e9fa5a56a9771fad4701a427e4844d2cbade1
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   arch/x86/xen/enlighten.c: In function 'xen_pvh_early_guest_init':
>> arch/x86/xen/enlighten.c:1522:2: error: implicit declaration of function 'xen_pvh_early_cpu_init' [-Werror=implicit-function-declaration]
     xen_pvh_early_cpu_init(0, false);
     ^~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/xen_pvh_early_cpu_init +1522 arch/x86/xen/enlighten.c

d285d683 Mukesh Rathor   2013-12-13  1516  
c9f6e997 Roger Pau Monne 2014-01-20  1517  	if (!xen_feature(XENFEAT_hvm_callback_vector))
c9f6e997 Roger Pau Monne 2014-01-20  1518  		return;
c9f6e997 Roger Pau Monne 2014-01-20  1519  
d285d683 Mukesh Rathor   2013-12-13  1520  	xen_have_vector_callback = 1;
a2ef5dc2 Mukesh Rathor   2014-09-10  1521  
a2ef5dc2 Mukesh Rathor   2014-09-10 @1522  	xen_pvh_early_cpu_init(0, false);
c9f6e997 Roger Pau Monne 2014-01-20  1523  	xen_pvh_set_cr_flags(0);
d285d683 Mukesh Rathor   2013-12-13  1524  
d285d683 Mukesh Rathor   2013-12-13  1525  #ifdef CONFIG_X86_32

:::::: The code at line 1522 was first introduced by commit
:::::: a2ef5dc2c7cbedbeb4c847039845afaea5e63745 x86/xen: Set EFER.NX and EFER.SCE in PVH guests

:::::: TO: Mukesh Rathor <mukesh.rathor@...cle.com>
:::::: CC: David Vrabel <david.vrabel@...rix.com>

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0-DAY kernel test infrastructure                Open Source Technology Center
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