linux-kernel - [PATCH v1] ACPI: scan: Use resource_type() for resource type checking

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Message-ID: <12814730.O9o76ZdvQC@rafael.j.wysocki>
Date: Tue, 30 Dec 2025 10:57:34 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Linux ACPI <linux-acpi@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Bjorn Helgaas <helgaas@...nel.org>,
 Zhang Rui <rui.zhang@...el.com>, Chen Yu <yu.c.chen@...el.com>,
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
 Mika Westerberg <mika.westerberg@...ux.intel.com>,
 Linux PCI <linux-pci@...r.kernel.org>, Alex Hung <alexhung@...il.com>,
 Hans de Goede <hansg@...nel.org>,
 Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
 platform-driver-x86@...r.kernel.org, AceLan Kao <acelan.kao@...onical.com>
Subject: [PATCH v1] ACPI: scan: Use resource_type() for resource type checking

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

To follow a well-established existing pattern, use resource_type() for
resource type checking in acpi_scan_claim_resources().

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---

This is a follow-up to

https://lore.kernel.org/linux-acpi/7888874.EvYhyI6sBW@rafael.j.wysocki/

which is present in linux-next.

---
 drivers/acpi/scan.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2624,7 +2624,7 @@ static void acpi_scan_claim_resources(st
 		if ((res->flags & IORESOURCE_DISABLED) || res->end < res->start)
 			continue;

-		if (res->flags & IORESOURCE_IO) {
+		if (resource_type(res) == IORESOURCE_IO) {
 			/*
 			 * Follow the PNP system driver and on x86 skip I/O
 			 * resources that start below 0x100 (the "standard PC
@@ -2635,7 +2635,7 @@ static void acpi_scan_claim_resources(st
 				continue;
 			}
 			r = request_region(res->start, resource_size(res), regionid);
-		} else if (res->flags & IORESOURCE_MEM) {
+		} else if (resource_type(res) == IORESOURCE_MEM) {
 			r = request_mem_region(res->start, resource_size(res), regionid);
 		} else {
 			continue;