linux-kernel - Re: [4.4 STABLE BACKPORT] x86: paravirt: make native_save

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Date:   Sat, 21 Jul 2018 08:04:18 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     kbuild-all@...org, gregkh@...uxfoundation.org,
        stable@...r.kernel.org, Nick Desaulniers <ndesaulniers@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Juergen Gross <jgross@...e.com>, linux-kernel@...r.kernel.org
Subject: Re: [4.4 STABLE BACKPORT] x86: paravirt: make native_save_fl extern
 inline

Hi Nick,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/x86/core]
[cannot apply to v4.18-rc5 next-20180720]
[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/Nick-Desaulniers/x86-paravirt-make-native_save_fl-extern-inline/20180721-073112
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   arch/x86/kernel/irqflags.S: Assembler messages:
>> arch/x86/kernel/irqflags.S:22: Error: bad register name `%_ASM_ARG1'

vim +22 arch/x86/kernel/irqflags.S

    16	
    17	/*
    18	 * void native_restore_fl(unsigned long flags)
    19	 * %eax/%rdi: flags
    20	 */
    21	ENTRY(native_restore_fl)
  > 22		push %_ASM_ARG1

---
0-DAY kernel test infrastructure                Open Source Technology Center
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