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arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.

From kbuild test robot <fengguang.wu@intel.com>
Newsgroups linux.kernel
Subject arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
Date 2017-03-05 01:00 +0100
Message-ID <thrKF-8kZ-3@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   2d62e0768d3c28536d4cfe4c40ba1e5e8e442a93
commit: 0e9f9fd20ce931cc2cf0519c56ae33fc74d656ad openrisc: add atomic bitops
date:   8 days ago
config: openrisc-or1ksim_defconfig (attached as .config)
compiler: or32-linux-gcc (GCC) 4.5.1-or32-1.0rc1
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 0e9f9fd20ce931cc2cf0519c56ae33fc74d656ad
        # save the attached .config to linux build tree
        make.cross ARCH=openrisc 

All errors (new ones prefixed by >>):

   arch/openrisc/include/asm/bitops/atomic.h: Assembler messages:
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
--
   arch/openrisc/include/asm/bitops/atomic.h: Assembler messages:
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
--
   arch/openrisc/include/asm/bitops/atomic.h: Assembler messages:
   arch/openrisc/include/asm/bitops/atomic.h:90: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:92: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:90: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:92: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:90: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:92: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:90: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:92: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:90: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:92: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:90: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:92: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
   net/core/dev.c: In function 'validate_xmit_skb_list':
   net/core/dev.c:2989:39: warning: 'tail' may be used uninitialized in this function
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:18: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:20: Error: unknown opcode2 `l.swa'.
--
   arch/openrisc/include/asm/bitops/atomic.h: Assembler messages:
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
   arch/openrisc/include/asm/bitops/atomic.h:70: Error: unknown opcode2 `l.lwa'.
   arch/openrisc/include/asm/bitops/atomic.h:72: Error: unknown opcode2 `l.swa'.
>> arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2 `l.lwa'.
>> arch/openrisc/include/asm/bitops/atomic.h:37: Error: unknown opcode2 `l.swa'.

vim +35 arch/openrisc/include/asm/bitops/atomic.h

    29	static inline void clear_bit(int nr, volatile unsigned long *addr)
    30	{
    31		unsigned long mask = BIT_MASK(nr);
    32		unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
    33		unsigned long tmp;
    34	
  > 35		__asm__ __volatile__(
    36			"1:	l.lwa	%0,0(%1)	\n"
  > 37			"	l.and	%0,%0,%2	\n"
    38			"	l.swa	0(%1),%0	\n"
    39			"	l.bnf	1b		\n"
    40			"	 l.nop			\n"

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown opcode2  `l.lwa'. kbuild test robot <fengguang.wu@intel.com> - 2017-03-05 01:00 +0100
  Re: arch/openrisc/include/asm/bitops/atomic.h:35: Error: unknown  opcode2 `l.lwa'. Stafford Horne <shorne@gmail.com> - 2017-03-05 22:50 +0100
    Re: [kbuild-all] arch/openrisc/include/asm/bitops/atomic.h:35:  Error: unknown opcode2 `l.lwa'. Fengguang Wu <fengguang.wu@intel.com> - 2017-03-06 02:30 +0100

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