[arm:for-next 20/25] /tmp/ccMMP9pi.s:67: Error: selected processor does not support ARM mode `isb'

[kbuild test robot]

tree:   http://repo.or.cz/linux-2.6/linux-2.6-arm.git for-next
head:   952b96ba23e34ebe3ebef561336986005f3d8425
commit: 9afc4686531bf701670f329217b8b044ccd95297 [20/25] ARM: 8452/2: PJ4: make coprocessor access sequences buildable in Thumb2 mode
config: arm-allmodconfig (attached as .config)
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
        git checkout 9afc4686531bf701670f329217b8b044ccd95297
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   /tmp/ccMMP9pi.s: Assembler messages:
>> /tmp/ccMMP9pi.s:67: Error: selected processor does not support ARM mode `isb'

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