linux-kernel - Re: [PATCH v5 6/9] x86: prevent inline distortion by paravirt ops

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Date:   Wed, 20 Jun 2018 13:05:17 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Nadav Amit <namit@...are.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org, x86@...nel.org,
        Nadav Amit <namit@...are.com>,
        Alok Kataria <akataria@...are.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v5 6/9] x86: prevent inline distortion by paravirt ops

Hi Nadav,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.18-rc1 next-20180619]
[cannot apply to tip/x86/core]
[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/Nadav-Amit/x86-macrofying-inline-asm-for-better-compilation/20180620-112043
config: i386-randconfig-x016-201824 (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/include/asm/paravirt.h: Assembler messages:
>> arch/x86/include/asm/paravirt.h:253: Error: can't mix positional and keyword arguments
--
   arch/x86/include/asm/paravirt.h: Assembler messages:
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments
>> arch/x86/include/asm/paravirt.h:253: Error: can't mix positional and keyword arguments
   arch/x86/include/asm/paravirt.h:29: Error: can't mix positional and keyword arguments

vim +253 arch/x86/include/asm/paravirt.h

014b15be include/asm-x86/paravirt.h  Glauber de Oliveira Costa 2008-01-30  249  
014b15be include/asm-x86/paravirt.h  Glauber de Oliveira Costa 2008-01-30  250  static inline void write_gdt_entry(struct desc_struct *dt, int entry,
014b15be include/asm-x86/paravirt.h  Glauber de Oliveira Costa 2008-01-30  251  				   void *desc, int type)
f8822f42 include/asm-i386/paravirt.h Jeremy Fitzhardinge       2007-05-02  252  {
014b15be include/asm-x86/paravirt.h  Glauber de Oliveira Costa 2008-01-30 @253  	PVOP_VCALL4(pv_cpu_ops.write_gdt_entry, dt, entry, desc, type);
f8822f42 include/asm-i386/paravirt.h Jeremy Fitzhardinge       2007-05-02  254  }
014b15be include/asm-x86/paravirt.h  Glauber de Oliveira Costa 2008-01-30  255  

:::::: The code at line 253 was first introduced by commit
:::::: 014b15be30c04622d130946ab7c0a9101b523a8a x86: change write_gdt_entry signature.

:::::: TO: Glauber de Oliveira Costa <gcosta@...hat.com>
:::::: CC: Ingo Molnar <mingo@...e.hu>

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