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

[Ard Biesheuvel]

On 22 December 2015 at 06:08, kbuild test robot <fengguang.wu at intel.com> wrote:
> 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'
>

Sigh. Apologies for this.

I updated the patch to only use the 'isb' if CONFIG_THUMB2_KERNEL is defined.