linux-kernel - Re: [PATCH] zcrypt: handle AP Info notification from CHSC SEI command

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Date:   Sun, 3 Feb 2019 17:25:02 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Tony Krowiak <akrowiak@...ux.ibm.com>
Cc:     kbuild-all@...org, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, sebott@...ux.ibm.com,
        oberpar@...ux.ibm.com, freude@...ux.ibm.com, pmorel@...ux.ibm.com,
        pasic@...ux.ibm.com, cohuck@...hat.com,
        Tony Krowiak <akrowiak@...ux.ibm.com>
Subject: Re: [PATCH] zcrypt: handle AP Info notification from CHSC SEI command

Hi Tony,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.0-rc4 next-20190201]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Tony-Krowiak/zcrypt-handle-AP-Info-notification-from-CHSC-SEI-command/20190202-184856
config: s390-alldefconfig (attached as .config)
compiler: s390x-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=8.2.0 make.cross ARCH=s390 

All errors (new ones prefixed by >>):

   In file included from arch/s390/kvm/kvm-s390.c:46:
>> arch/s390/include/asm/ap.h:371:2: error: #error "no CONFIG_ZCRYPT"
    #error "no CONFIG_ZCRYPT"
     ^~~~~
   In file included from arch/s390/kvm/kvm-s390.c:46:
   arch/s390/include/asm/ap.h:372:13: warning: 'ap_bus_cfg_chg' defined but not used [-Wunused-function]
    static void ap_bus_cfg_chg(void){};
                ^~~~~~~~~~~~~~

vim +371 arch/s390/include/asm/ap.h

   362	
   363	/*
   364	 * Interface to tell the AP bus code that a configuration
   365	 * change has happened. The bus code should at least do
   366	 * an ap bus resource rescan.
   367	 */
   368	#if IS_ENABLED(CONFIG_ZCRYPT)
   369	void ap_bus_cfg_chg(void);
   370	#else
 > 371	#error "no CONFIG_ZCRYPT"
   372	static void ap_bus_cfg_chg(void){};
   373	#endif
   374	

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