linux-kernel - Re: [PATCH v2 0/5] platform/x86: wmi: Pass event data directly to legacy notify handlers

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Message-ID: <ea736e0a-a92e-4a2f-a06c-04f8c20aaf22@redhat.com>
Date: Thu, 5 Sep 2024 17:31:22 +0200
From: Hans de Goede <hdegoede@...hat.com>
To: Armin Wolf <W_Armin@....de>, james@...iv.tech, jlee@...e.com,
 corentin.chary@...il.com, luke@...nes.dev, matan@...alib.org,
 coproscefalo@...il.com
Cc: ilpo.jarvinen@...ux.intel.com, linux@...ck-us.net, jdelvare@...e.com,
 rafael@...nel.org, lenb@...nel.org, platform-driver-x86@...r.kernel.org,
 linux-hwmon@...r.kernel.org, linux-acpi@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/5] platform/x86: wmi: Pass event data directly to
 legacy notify handlers

Hi,

On 9/1/24 5:10 AM, Armin Wolf wrote:
> The current legacy WMI handlers are susceptible to picking up wrong
> WMI event data on systems where different WMI devices share some
> notification IDs.
> 
> Prevent this by letting the WMI driver core taking care of retrieving
> the event data. This also simplifies the legacy WMI handlers and their
> implementation inside the WMI driver core.
> 
> The fisr patch fixes a minor issue discovered inside the hp-wmi-sensors
> driver.
> The second patch converts all legacy WMI notify handlers to stop using
> wmi_get_event_data() and instead use the new event data provided by
> the WMI driver core.
> The remaining patches finally perform some cleanups.
> 
> The patch series was tested on a Dell Inspiron 3505 and a Acer Aspire
> E1-731 and appears to work.
> 
> Changes since v1:
> - Rework the hp-wmi-sensors patch
> - add Reviewed-by tags
> 
> Armin Wolf (5):
>   hwmon: (hp-wmi-sensors) Check if WMI event data exists
>   platform/x86: wmi: Pass event data directly to legacy notify handlers
>   platform/x86: wmi: Remove wmi_get_event_data()
>   platform/x86: wmi: Merge get_event_data() with wmi_get_notify_data()
>   platform/x86: wmi: Call both legacy and WMI driver notify handlers

Thank you for your patch-series, I've applied the series to my
review-hans branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans




> 
>  drivers/hwmon/hp-wmi-sensors.c           |  20 +---
>  drivers/platform/x86/acer-wmi.c          |  16 +--
>  drivers/platform/x86/asus-wmi.c          |  19 +--
>  drivers/platform/x86/dell/dell-wmi-aio.c |  13 +--
>  drivers/platform/x86/hp/hp-wmi.c         |  16 +--
>  drivers/platform/x86/huawei-wmi.c        |  14 +--
>  drivers/platform/x86/lg-laptop.c         |  13 +--
>  drivers/platform/x86/msi-wmi.c           |  20 +---
>  drivers/platform/x86/toshiba-wmi.c       |  15 +--
>  drivers/platform/x86/wmi.c               | 143 ++++++-----------------
>  include/linux/acpi.h                     |   3 +-
>  11 files changed, 53 insertions(+), 239 deletions(-)
> 
> --
> 2.39.2
>