linux-kernel - Re: [PATCH] MIPS: Fix minimum alignment requirement of IRQ stack

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Date:   Sun, 9 Jul 2017 09:21:25 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Matt Redfearn <matt.redfearn@...tec.com>
Cc:     kbuild-all@...org, Ralf Baechle <ralf@...ux-mips.org>,
        linux-mips@...ux-mips.org,
        Matt Redfearn <matt.redfearn@...tec.com>,
        Chris Metcalf <cmetcalf@...lanox.com>,
        linux-kernel@...r.kernel.org, Aaron Tomlin <atomlin@...hat.com>,
        "Jason A. Donenfeld" <jason@...c4.com>
Subject: Re: [PATCH] MIPS: Fix minimum alignment requirement of IRQ stack

Hi Matt,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.12 next-20170707]
[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/Matt-Redfearn/MIPS-Fix-minimum-alignment-requirement-of-IRQ-stack/20170709-054925
config: mips-fuloong2e_defconfig (attached as .config)
compiler: mips64el-linux-gnuabi64-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All warnings (new ones prefixed by >>):

   In file included from drivers/net/slip/slip.c:87:0:
>> drivers/net/slip/slip.h:43:0: warning: "END" redefined
    #define END             0300  /* indicates end of frame */
    
   In file included from arch/mips/include/asm/irq.h:12:0,
                    from include/linux/irq.h:27,
                    from include/asm-generic/hardirq.h:12,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:8,
                    from include/linux/interrupt.h:12,
                    from drivers/net/slip/slip.c:72:
   arch/mips/include/asm/asm.h:74:0: note: this is the location of the previous definition
    #define END(function)     \
    

vim +/END +43 drivers/net/slip/slip.h

^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  27  # define SL_INCLUDE_CSLIP
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  28  #endif
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  29  
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  30  #ifdef SL_INCLUDE_CSLIP
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  31  # define SL_MODE_DEFAULT SL_MODE_ADAPTIVE
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  32  #else
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  33  # define SL_MODE_DEFAULT SL_MODE_SLIP
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  34  #endif
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  35  
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  36  /* SLIP configuration. */
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  37  #define SL_NRUNIT	256		/* MAX number of SLIP channels;
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  38  					   This can be overridden with
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  39  					   insmod -oslip_maxdev=nnn	*/
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  40  #define SL_MTU		296		/* 296; I am used to 600- FvK	*/
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  41  
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  42  /* SLIP protocol characters. */
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16 @43  #define END             0300		/* indicates end of frame	*/
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  44  #define ESC             0333		/* indicates byte stuffing	*/
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  45  #define ESC_END         0334		/* ESC ESC_END means END 'data'	*/
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  46  #define ESC_ESC         0335		/* ESC ESC_ESC means ESC 'data'	*/
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  47  
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  48  
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  49  struct slip {
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  50    int			magic;
^1da177e drivers/net/slip.h Linus Torvalds 2005-04-16  51  

:::::: The code at line 43 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

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