Am 01.03.2017 um 11:40 schrieb Andreas F?rber:

Am 01.03.2017 um 08:19 schrieb kbuild test robot:

quoted

Hi Andreas,

[auto build test ERROR on next-20170228]
[also build test ERROR on v4.10]
[cannot apply to robh/for-next linus/master linux/master v4.9-rc8 v4.9-rc7 v4.9-rc6]
[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/Andreas-F-rber/ARM-Initial-Actions-Semi-S500-and-S900-enablement/20170301-110028
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   arch/arm/mach-actions/headsmp.S: Assembler messages:

quoted

quoted

arch/arm/mach-actions/headsmp.S:43: Error: selected processor does not support `dsb' in ARM mode
arch/arm/mach-actions/headsmp.S:44: Error: selected processor does not support `isb' in ARM mode

vim +43 arch/arm/mach-actions/headsmp.S

    37		mov	r6, r2, lsl r0
    38		orr	r5, r5, r6	@ Reg = (Temp<<WayShift)|(NumSets<<SetShift)
    39		mcr	p15, 0, r5, c7, c6, 2
    40		bgt	2b
    41		cmp	r2, #0
    42		bgt	1b
  > 43		dsb
  > 44		isb

Any suggestion what to do about this error? Obviously it built fine for
me, and the only thing I spotted in the attached config was that it's
apparently a BE8 build...

And it has V6 enabled. If I set

AFLAGS_headsmp.o := -Wa,-march=armv7-a

then the error seems resolved.

Regards,
Andreas

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