linux-kernel - Re: [PATCH v3 3/3] x86/delay: Introduce TPAUSE delay

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Message-ID: <202004131358.5aTVch5l%lkp@intel.com>
Date:   Mon, 13 Apr 2020 13:42:45 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Kyung Min Park <kyung.min.park@...el.com>
Cc:     kbuild-all@...ts.01.org, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/3] x86/delay: Introduce TPAUSE delay

Hi Kyung,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/auto-latest]
[also build test ERROR on linus/master tip/x86/core linux/master v5.7-rc1 next-20200412]
[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/Kyung-Min-Park/x86-delay-Introduce-TPAUSE-instruction/20200411-073203
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 1d625b673f4477a92277a2291be07fa82519ce15
config: i386-debian-10.3 (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=i386 

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

All errors (new ones prefixed by >>):

   In file included from arch/x86/kernel/reboot_fixups_32.c:11:0:
   arch/x86/include/asm/delay.h:7:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'use_tsc_delay'
    void __init use_tsc_delay(void);
                ^~~~~~~~~~~~~
>> arch/x86/include/asm/delay.h:8:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'use_tpause_delay'
    void __init use_tpause_delay(void);
                ^~~~~~~~~~~~~~~~

vim +8 arch/x86/include/asm/delay.h

     6	
   > 7	void __init use_tsc_delay(void);
   > 8	void __init use_tpause_delay(void);
     9	void use_mwaitx_delay(void);
    10	

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

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