On Tue, Sep 27, 2016 at 06:08:31PM -0400, Charles (Chas) Williams wrote:

From: Prarit Bhargava <redacted>

commit a59b679ab85635737947310323f2f2bcfa0664a7 upstream.

ACPICA commit 7bb77313091e52a846df4c9c2bea90be31bfb9d8

Eliminate warnings for "not found" _Sx errors, since these
are optional. Original NOT_FOUND status is still returned.

Original changes by Prarit Bhargava.
ACPICA BZ 1208.

Link: https://github.com/acpica/acpica/commit/7bb77313
Link: https://bugs.acpica.org/show_bug.cgi?id=1208
Signed-off-by: Prarit Bhargava <redacted>
Signed-off-by: Bob Moore <redacted>
Signed-off-by: Lv Zheng <redacted>
Signed-off-by: Rafael J. Wysocki <redacted>
Signed-off-by: Chas Williams <redacted>
---
 drivers/acpi/acpica/hwxface.c | 24 +++++++++++++++++-------
 1 file changed, 17 insertions(+), 7 deletions(-)

Why is this a patch needed for 4.4-stable?  What is it solving?  It
looks like it just maybe reduces some warning messages in the kernel
log?

I need an ack from the ACPI maintainers before I can take such a
thing...

thanks,

greg k-h