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SubjectRe: [PATCH 1/2] microblaze: fix endian handling
On Mon, Jan 15, 2018 at 11:14 AM, Michal Simek <> wrote:
> On 15.1.2018 10:29, Arnd Bergmann wrote:
>> On Sun, Jan 14, 2018 at 2:01 AM, kbuild test robot <> wrote:
>>> Hi Arnd,
>>> I love your patch! Yet something to improve:
>>> [auto build test ERROR on linus/master]
>>> [also build test ERROR on v4.15-rc7 next-20180112]
>>> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>>> url:
>>> config: microblaze-mmu_defconfig (attached as .config)
>>> compiler: microblaze-linux-gcc (GCC) 7.2.0
>>> reproduce:
>>> wget -O ~/bin/make.cross
>>> chmod +x ~/bin/make.cross
>>> # save the attached .config to linux build tree
>>> make.cross ARCH=microblaze
>>> All errors (new ones prefixed by >>):
>>>>> arch/microblaze/lib/fastcopy.S:33:2: error: #error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB_ASM.
>>> #error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB_ASM.
>>> ^~~~~
>>> vim +33 arch/microblaze/lib/fastcopy.S
>> This seems to be a result of fixing one bug so we run into one that we didn't
>> get to earlier. I still assume my patch is correct.
> I will look at this later this week. Xilinx toolchain which I use
> normally are microblaze for BE or microblazeel that's why proper flags
> are default options already that's why I didn't see any issue.
> Did you take toolchain from

I used a gcc-7.2.1 that I built myself for all architectures in order to debug
a gcc issue that appeared in gcc-7.2.

The patch that got tested was my workaround for an obviously broken
allmodconfig build.


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