linux-kernel - RE: [GIT PULL] ACPI fixes for v4.12-rc4

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Date:   Mon, 5 Jun 2017 02:02:42 +0000
From:   "Zheng, Lv" <lv.zheng@...el.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
CC:     Linux PM <linux-pm@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: RE: [GIT PULL] ACPI fixes for v4.12-rc4

Hi,

> From: linux-acpi-owner@...r.kernel.org [mailto:linux-acpi-owner@...r.kernel.org] On Behalf Of Rafael J.
> Wysocki
> Subject: [GIT PULL] ACPI fixes for v4.12-rc4
> 
> Hi Linus,
> 
> Please pull from the tag
> 
>  git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
>  acpi-4.12-rc4
> 
> with top-most commit 60319130254084b337e02439d3b4ec301b6328bb
> 
>  Merge branches 'acpi-button', 'acpica' and 'acpi-sysfs'
> 
> on top of commit 5ed02dbb497422bf225783f46e6eadd237d23d6b
> 
>  Linux 4.12-rc3
> 
> to receive ACPI fixes for v4.12-rc4.
> 
> These revert one more problematic commit related to the ACPI-based
> handling of laptop lids and make some unuseful error messages coming
> from ACPICA go away.
> 
> Specifics:
> 
>  - Revert one more commit related to the ACPI-based handling of
>    laptop lids that changed the default behavior on laptops that
>    booted with closed lids and introduced a regression there
>    (Benjamin Tissoires).
> 
>  - Add a missing acpi_put_table() to the code implementing the
>    /sys/firmware/acpi/tables interface to prevent a counter in
>    the ACPICA core from overflowing (Dan Williams).
> 
>  - Drop error messages printed by ACPICA on acpi_get_table()
>    reference counting mismatches as they need not indicate real
>    errors at this point (Lv Zheng).
> 
> Thanks!
> 
> 
> ---------------
> 
> Benjamin Tissoires (1):
>       Revert "ACPI / button: Change default behavior to lid_init_state=open"
> 
> Dan Williams (1):
>       ACPI / sysfs: fix acpi_get_table() leak / acpi-sysfs denial of service

This commit can trigger regression as mentioned by this discussion:
https://patchwork.kernel.org/patch/9717073/
So if this commit is accepted by the upstream, the above commit should also be in upstream in order not to regress.
Do you need to me refine it and re-send it to the community?
It's a bit slow in ACPICA upstream as ACPICA upstream is frozen for spec 6.2 support.

Thanks and best regards
Lv

> 
> Lv Zheng (1):
>       ACPICA: Tables: Fix regression introduced by a too early
> mechanism enabling
> 
> ---------------
> 
>  drivers/acpi/acpica/tbutils.c | 4 ----
>  drivers/acpi/button.c         | 2 +-
>  drivers/acpi/sysfs.c          | 7 +++++--
>  3 files changed, 6 insertions(+), 7 deletions(-)
> --
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