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

[Arnd Bergmann]

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.

        Arnd