From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Fri, 15 Dec 2023 11:25:15 +0000 (+0100)
Subject: ACPI: OSL: Use spin locks without disabling interrupts
X-Git-Tag: v6.8-rc1~169^2~5^2~2
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=8e57de43076477c5cce113f2579bef02ce3e8b27;p=linux-block.git

ACPI: OSL: Use spin locks without disabling interrupts

After commit 7a36b901a6eb ("ACPI: OSL: Use a threaded interrupt handler
for SCI") any ACPICA code never runs in a hardirq handler, so it need
not dissable interrupts on the local CPU when acquiring a spin lock.

Make it use spin locks without disabling interrupts.

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

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index a55cb578741a..70af3fbbebe5 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1515,20 +1515,18 @@ void acpi_os_delete_lock(acpi_spinlock handle)
 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock lockp)
 	__acquires(lockp)
 {
-	acpi_cpu_flags flags;
-
-	spin_lock_irqsave(lockp, flags);
-	return flags;
+	spin_lock(lockp);
+	return 0;
 }
 
 /*
  * Release a spinlock. See above.
  */
 
-void acpi_os_release_lock(acpi_spinlock lockp, acpi_cpu_flags flags)
+void acpi_os_release_lock(acpi_spinlock lockp, acpi_cpu_flags not_used)
 	__releases(lockp)
 {
-	spin_unlock_irqrestore(lockp, flags);
+	spin_unlock(lockp);
 }
 
 #ifndef ACPI_USE_LOCAL_CACHE