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From:   Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
To:     linux-pm@vger.kernel.org, loongarch@lists.linux.dev,
        linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-riscv@lists.infradead.org, kvmarm@lists.linux.dev
Cc:     x86@kernel.org, James Morse <james.morse@arm.com>,
        Salil Mehta <salil.mehta@huawei.com>,
        Jonathan Cameron <Jonathan.Cameron@Huawei.com>,
        Jean-Philippe Brucker <jean-philippe@linaro.org>,
        jianyong.wu@arm.com, justin.he@arm.com,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>, linux-acpi@vger.kernel.org
Subject: [PATCH] ACPI: Use the acpi_device_is_present() helper in more places
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Sender: Russell King <rmk@armlinux.org.uk>
Date:   Fri, 20 Oct 2023 14:59:48 +0100
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From: James Morse <james.morse@arm.com>

acpi_device_is_present() checks the present or functional bits
from the cached copy of _STA.

A few places open-code this check. Use the helper instead to
improve readability.

Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
Jonathan Cameron suggests "Pull this one out and send it upstream in
advance of the rest" so let's do that. See
https://lore.kernel.org/r/20230914130455.00004434@Huawei.com/

So, let's get this upstream to reduce the number of outstanding patches
for aarch64 vcpu hotplug.

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

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 691d4b7686ee..ed01e19514ef 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -304,7 +304,7 @@ static int acpi_scan_device_check(struct acpi_device *adev)
 	int error;
 
 	acpi_bus_get_status(adev);
-	if (adev->status.present || adev->status.functional) {
+	if (acpi_device_is_present(adev)) {
 		/*
 		 * This function is only called for device objects for which
 		 * matching scan handlers exist.  The only situation in which
@@ -338,7 +338,7 @@ static int acpi_scan_bus_check(struct acpi_device *adev, void *not_used)
 	int error;
 
 	acpi_bus_get_status(adev);
-	if (!(adev->status.present || adev->status.functional)) {
+	if (!acpi_device_is_present(adev)) {
 		acpi_scan_device_not_present(adev);
 		return 0;
 	}
-- 
2.30.2