linux-kernel - [PATCH v1 0/3] PM: runtime: Wrapper macros for usage counter guards

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Message-ID: <13883374.uLZWGnKmhe@rafael.j.wysocki>
Date: Fri, 07 Nov 2025 19:35:09 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Linux PM <linux-pm@...r.kernel.org>
Cc: Linux ACPI <linux-acpi@...r.kernel.org>,
 Jonathan Cameron <jonathan.cameron@...wei.com>, Takashi Iwai <tiwai@...e.de>,
 LKML <linux-kernel@...r.kernel.org>, Zhang Qilong <zhangqilong3@...wei.com>,
 Frank Li <Frank.Li@....com>, Dhruva Gole <d-gole@...com>,
 Dan Williams <dan.j.williams@...el.com>,
 Linux PCI <linux-pci@...r.kernel.org>, Bjorn Helgaas <helgaas@...nel.org>,
 Alex Williamson <alex.williamson@...hat.com>
Subject: [PATCH v1 0/3] PM: runtime: Wrapper macros for usage counter guards

Hi All,

The runtime PM usage counter guards introduced recently:

https://lore.kernel.org/linux-pm/6196611.lOV4Wx5bFT@rafael.j.wysocki/

and then fixed:

https://lore.kernel.org/linux-pm/5943878.DvuYhMxLoT@rafael.j.wysocki/

should generally work, but using them feels sort of arcane and cryptic
even though the underlying concept is relatively straightforward.

For this reason, runtime PM wrapper macros around ACQUIRE() and
ACQUIRE_ERR() involving the new guards are introduced in this series
(patch [1/3]) and then used in the code already using the guards (patches
[2/3] and [3/3]) to make it look more straightforward.

Thanks!