linux-kernel - Re: [PATCH 3/3] platform/x86: wmi: Remove obsolete duplicate GUID allowlist

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Message-ID: <d1244489-6e0b-8209-5b2c-e2af7425e110@linux.intel.com>
Date: Tue, 27 Feb 2024 15:05:15 +0200 (EET)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Armin Wolf <W_Armin@....de>
cc: jithu.joseph@...el.com, linux@...ssschuh.net, pali@...nel.org, 
    Hans de Goede <hdegoede@...hat.com>, Dell.Client.Kernel@...l.com, 
    jdelvare@...e.com, linux@...ck-us.net, platform-driver-x86@...r.kernel.org, 
    linux-hwmon@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] platform/x86: wmi: Remove obsolete duplicate GUID
 allowlist

On Mon, 26 Feb 2024, Armin Wolf wrote:

> The whitelist-based approach for preventing older WMI drivers from
> being instantiated multiple times has many drawbacks:
> 
> - uses cannot see all available WMI devices (if not whitelisted)
> - whitelisting a WMI driver requires changes in the WMI driver core
> - maintenance burden for driver and subsystem developers
> 
> Since the WMI driver core already takes care that older WMI drivers
> are not being instantiated multiple times, remove the now redundant
> whitelist.
> 
> Tested on a ASUS Prime B650-Plus.
> 
> Signed-off-by: Armin Wolf <W_Armin@....de>
> ---
>  drivers/platform/x86/wmi.c | 39 --------------------------------------
>  1 file changed, 39 deletions(-)
> 
> diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
> index 349deced87e8..1920e115da89 100644
> --- a/drivers/platform/x86/wmi.c
> +++ b/drivers/platform/x86/wmi.c
> @@ -90,16 +90,6 @@ static const struct acpi_device_id wmi_device_ids[] = {
>  };
>  MODULE_DEVICE_TABLE(acpi, wmi_device_ids);
> 
> -/* allow duplicate GUIDs as these device drivers use struct wmi_driver */
> -static const char * const allow_duplicates[] = {
> -	"05901221-D566-11D1-B2F0-00A0C9062910",	/* wmi-bmof */
> -	"8A42EA14-4F2A-FD45-6422-0087F7A7E608",	/* dell-wmi-ddv */
> -	"44FADEB1-B204-40F2-8581-394BBDC1B651",	/* intel-wmi-sbl-fw-update */
> -	"86CCFD48-205E-4A77-9C48-2021CBEDE341",	/* intel-wmi-thunderbolt */
> -	"F1DDEE52-063C-4784-A11E-8A06684B9B01",	/* dell-smm-hwmon */
> -	NULL
> -};

Great work, thank you.

I've applied the series to review-ilpo.

-- 
 i.