stable-rc build: 0 warnings 2 failures (stable-rc/v4.4.63-29-ge636782)

[Michael Ellerman]

Arnd Bergmann <arnd at arndb.de> writes:

> On Tue, Apr 25, 2017 at 7:08 PM, Olof's autobuilder <build at lixom.net> wrote:
>>
>> Failed defconfigs:
>>         powerpc.pasemi_defconfig
>>         powerpc.ppc64_defconfig
>>
>> -------------------------------------------------------------------------------
>>
>> Errors:
>>
>> /work/build/batch/arch/powerpc/kernel/misc_64.S:72: Error: .localentry expression for `flush_icache_range' does not evaluate to a constant
>
> This is a regression in 4.4-stable-rc, caused by the backport of commit
> 8f5f525d5b83f7d7 ("powerpc/64: Fix flush_(d|i)cache_range() called from
> modules").
>
> The patch was also backported into v4.9-stable-rc, but did not cause
> problems there. The fixes tag suggests that the patch is needed on
> every version from 3.16 up, but apparently the fix needs to be a little
> different compared to newer kernels.

Yeah, the auto-backport failed, and then I sent a version for 4.4 which
fixed the bug but broke other configs (big endian).

I've asked Greg to drop it for now.

I'll try again when I'm less sleep deprived :)

cheers