ACK: [SRU Xenial 0/2] LP: #1905475 Fix powerpc build

[Kamal Mostafa]

LGTM.

Acked-by: Kamal Mostafa <kamal at canonical.com>

 -Kamal

On Tue, Nov 24, 2020 at 08:10:05PM -0300, Thadeu Lima de Souza Cascardo wrote:
> After uaccess flush backport, a powerpc flavor stopped building. This was due
> to a backport of a file that was not present in 4.4 and was even broken on
> upstream stable 4.4. We were just a little more broken due to differences in
> the backport.
> 
> The potential regression might sound a little scary, but it's due to changes in
> the area of code that copies data to and from userspace. I managed to at least
> test that one of the flavors boot on an G4 iBook, though not the one that was
> failing to build.
> 
> [Impact]
> powerpc flavor powerpc64-emb fails to build with kernel 4.4.0-196.
> 
> [Test case]
> Build the kernel with all powerpc flavors.
> 
> [Potential regression]
> The kernel might still not boot. Userspace data might be corrupted when kernel
> writes to it. Kernel might not read userspace data correctly and on-disk data
> would get corrupted.
> 
> Daniel Axtens (1):
>   powerpc/uaccess-flush: fix corenet64_smp_defconfig build
> 
> Thadeu Lima de Souza Cascardo (1):
>   UBUNTU: SAUCE: powerpc/uaccess: only include kup-radix.h on
>     PPC_BOOK3S_64
> 
>  arch/powerpc/include/asm/kup.h  | 2 +-
>  arch/powerpc/kernel/ppc_ksyms.c | 4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> -- 
> 2.27.0
> 
> 
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