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From: "Kurt Borja" <kuurtb@gmail.com>
To: "Antheas Kapenekakis" <lkml@antheas.dev>,
	<platform-driver-x86@vger.kernel.org>
Cc: "Armin Wolf" <W_Armin@gmx.de>, "Jonathan Corbet" <corbet@lwn.net>,
	"Hans de Goede" <hdegoede@redhat.com>,
	"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
	"Jean Delvare" <jdelvare@suse.com>,
	"Guenter Roeck" <linux@roeck-us.net>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-hwmon@vger.kernel.org
Subject: Re: [PATCH v1 02/10] platform/x86: msi-wmi-platform: Add unlocked msi_wmi_platform_query
Date: Mon, 12 May 2025 16:21:27 -0300	[thread overview]
Message-ID: <D9UFCPLQHE5V.UH1BAK279S5M@gmail.com> (raw)
In-Reply-To: <20250511204427.327558-3-lkml@antheas.dev>

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On Sun May 11, 2025 at 5:44 PM -03, Antheas Kapenekakis wrote:
> This driver requires to be able to handle transactions that perform
> multiple WMI actions at a time. Therefore, it needs to be able to
> lock the wmi_lock mutex for multiple operations.
>
> Add msi_wmi_platform_query_unlocked() to allow the caller to
> perform the WMI query without locking the wmi_lock mutex, by
> renaming the existing function and adding a new one that only
> locks the mutex.
>
> Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>

You only use msi_wmi_platform_query_unlocked() to protect the
fan_curve/AP state right?

If that's the case I think we don't need it. AFAIK sysfs reads/writes
are already synchronized/locked, and as I mentioned in Patch 10, I don't
think you need this variant in probe/remove either.

I'd like to hear more opinions on this though.

-- 
 ~ Kurt

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  reply	other threads:[~2025-05-12 19:21 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-11 20:44 [PATCH v1 00/10] platform/x86: msi-wmi-platform: Add fan curves/platform profile/tdp/battery limiting Antheas Kapenekakis
2025-05-11 20:44 ` [PATCH v1 01/10] platform/x86: msi-wmi-platform: Use input buffer for returning result Antheas Kapenekakis
2025-05-11 23:31   ` Kurt Borja
2025-05-13 19:42     ` Armin Wolf
2025-05-11 20:44 ` [PATCH v1 02/10] platform/x86: msi-wmi-platform: Add unlocked msi_wmi_platform_query Antheas Kapenekakis
2025-05-12 19:21   ` Kurt Borja [this message]
2025-05-12 20:51     ` Antheas Kapenekakis
2025-05-12 21:23       ` Kurt Borja
2025-05-12 21:51         ` Antheas Kapenekakis
2025-05-13 19:45     ` Armin Wolf
2025-05-13 19:47   ` Armin Wolf
2025-05-11 20:44 ` [PATCH v1 03/10] platform/x86: msi-wmi-platform: Add quirk system Antheas Kapenekakis
2025-05-11 23:32   ` Kurt Borja
2025-05-13 20:43   ` Armin Wolf
2025-05-11 20:44 ` [PATCH v1 04/10] platform/x86: msi-wmi-platform: Add support for fan control Antheas Kapenekakis
2025-05-11 23:32   ` Kurt Borja
2025-05-13 20:58   ` Armin Wolf
2025-05-19  1:35     ` Armin Wolf
2025-05-11 20:44 ` [PATCH v1 05/10] platform/x86: msi-wmi-platform: Add platform profile through shift mode Antheas Kapenekakis
2025-05-11 23:33   ` Kurt Borja
2025-05-12 21:59     ` Antheas Kapenekakis
2025-05-19  1:51       ` Armin Wolf
2025-05-19  1:58   ` Armin Wolf
2025-05-11 20:44 ` [PATCH v1 06/10] platform/x86: msi-wmi-platform: Add PL1/PL2 support via firmware attributes Antheas Kapenekakis
2025-05-11 23:34   ` Kurt Borja
2025-05-12 10:22     ` Antheas Kapenekakis
2025-05-19  2:08   ` Armin Wolf
2025-05-11 20:44 ` [PATCH v1 07/10] platform/x86: msi-wmi-platform: Add charge_threshold support Antheas Kapenekakis
2025-05-11 23:34   ` Kurt Borja
2025-05-19  2:32   ` Armin Wolf
2025-05-11 20:44 ` [PATCH v1 08/10] platform/x86: msi-wmi-platform: Drop excess fans in dual fan devices Antheas Kapenekakis
2025-05-11 23:35   ` Kurt Borja
2025-05-11 20:44 ` [PATCH v1 09/10] platform/x86: msi-wmi-platform: Update header text Antheas Kapenekakis
2025-05-19  2:33   ` Armin Wolf
2025-05-11 20:44 ` [PATCH v1 10/10] platform/x86: msi-wmi-platform: Restore fan curves on PWM disable and unload Antheas Kapenekakis
2025-05-12 19:16   ` Kurt Borja
2025-05-12 20:50     ` Antheas Kapenekakis
2025-05-11 23:30 ` [PATCH v1 00/10] platform/x86: msi-wmi-platform: Add fan curves/platform profile/tdp/battery limiting Kurt Borja
2025-05-12 10:16   ` Antheas Kapenekakis
2025-05-12 19:05     ` Kurt Borja
2025-05-19  2:37 ` Armin Wolf
2025-05-30 20:50   ` Antheas Kapenekakis
2025-05-30 21:15     ` Armin Wolf
2025-05-30 21:28       ` Antheas Kapenekakis
2025-05-30 22:00         ` Armin Wolf

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