From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Linux ACPI <linux-acpi@vger.kernel.org>
Cc: "Linux PM" <linux-pm@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"Mika Westerberg" <mika.westerberg@linux.intel.com>,
"Peixin Xie" <peixin.xie@linux.spacemit.com>,
"Sakari Ailus" <sakari.ailus@linux.intel.com>,
"Lukas Wunner" <lukas@wunner.de>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Linux PCI" <linux-pci@vger.kernel.org>,
"Bjorn Helgaas" <helgaas@kernel.org>,
"Hans de Goede" <hansg@kernel.org>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v2 3/6] ACPI: scan: Combine two conditionals in acpi_bus_attach()
Date: Wed, 02 Sep 2026 21:30:00 +0200 [thread overview]
Message-ID: <8743568.T7Z3S40VBb@rafael.j.wysocki> (raw)
In-Reply-To: <5144065.31r3eYUQgx@rafael.j.wysocki>
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
There are two conditionals in acpi_bus_attach() that can be combined,
which slightly reduces the overhead and makes the code a bit easier
to follow, so do that.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
v1 -> v2:
* Reverse checks to avoid multiple negations (Andy)
* Rebase on top of the new [2/6]
Link to the v1:
https://lore.kernel.org/linux-pci/2021470.taCxCBeP46@rafael.j.wysocki/
---
drivers/acpi/scan.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 4586f1798685..7208cc515866 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2370,13 +2370,8 @@ static int acpi_bus_attach(struct acpi_device *device, void *first_pass)
if (ret < 0)
return 0;
- if (ret > 0 && !device->flags.enumeration_by_parent) {
- acpi_device_set_enumerated(device);
- goto ok;
- }
-
- if (device->pnp.type.platform_id || device->pnp.type.backlight ||
- device->flags.enumeration_by_parent)
+ if (device->flags.enumeration_by_parent ||
+ (!ret && (device->pnp.type.platform_id || device->pnp.type.backlight)))
acpi_default_enumeration(device);
else
acpi_device_set_enumerated(device);
--
2.51.0
next prev parent reply other threads:[~2026-09-02 19:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5144065.31r3eYUQgx@rafael.j.wysocki>
2026-09-02 19:26 ` [PATCH v2 2/6] ACPI: scan: Stop calling acpi_bus_init_power() early Rafael J. Wysocki
2026-09-02 19:58 ` sashiko-bot
2026-09-02 19:30 ` Rafael J. Wysocki [this message]
2026-09-02 20:01 ` [PATCH v2 3/6] ACPI: scan: Combine two conditionals in acpi_bus_attach() sashiko-bot
2026-09-03 7:27 ` Andy Shevchenko
2026-09-02 19:33 ` [PATCH v2 4/6] ACPI: scan: Add ACPI device enumerated marker Rafael J. Wysocki
2026-09-02 20:26 ` sashiko-bot
2026-09-02 19:35 ` [PATCH v2 5/6] ACPI: scan: Adjust and rename acpi_bus_attach() Rafael J. Wysocki
2026-09-02 20:30 ` sashiko-bot
2026-09-02 19:36 ` [PATCH v2 6/6] ACPI: scan: Take PCI device enumeration into account directly Rafael J. Wysocki
2026-09-02 20:51 ` sashiko-bot
2026-09-03 8:12 ` Andy Shevchenko
[not found] ` <2292173.irdbgypaU6@rafael.j.wysocki>
2026-09-02 19:44 ` [PATCH v2 1/6] ACPI: PM: Drop parent state update from acpi_device_get_power() sashiko-bot
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