4 files changed, 17 insertions, 11 deletions

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 8c086c87cbb6..2fc2b43a4ed3 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -682,7 +682,7 @@ bool acpi_device_is_first_physical_node(struct acpi_device *adev,
  * resources available from it but they will be matched normally using functions
  * provided by their bus types (and analogously for their modalias).
  */
-struct acpi_device *acpi_companion_match(const struct device *dev)
+const struct acpi_device *acpi_companion_match(const struct device *dev)
 {
 	struct acpi_device *adev;
 
@@ -706,7 +706,7 @@ struct acpi_device *acpi_companion_match(const struct device *dev)
  * identifiers and a _DSD object with the "compatible" property, use that
  * property to match against the given list of identifiers.
  */
-static bool acpi_of_match_device(struct acpi_device *adev,
+static bool acpi_of_match_device(const struct acpi_device *adev,
 				 const struct of_device_id *of_match_table,
 				 const struct of_device_id **of_id)
 {
@@ -808,7 +808,7 @@ static bool __acpi_match_device_cls(const struct acpi_device_id *id,
 	return true;
 }
 
-static bool __acpi_match_device(struct acpi_device *device,
+static bool __acpi_match_device(const struct acpi_device *device,
 				const struct acpi_device_id *acpi_ids,
 				const struct of_device_id *of_ids,
 				const struct acpi_device_id **acpi_id,
diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
index 0fbfbaa8d8e3..b9bbf0746199 100644
--- a/drivers/acpi/device_sysfs.c
+++ b/drivers/acpi/device_sysfs.c
@@ -283,7 +283,7 @@ int acpi_device_uevent_modalias(const struct device *dev, struct kobj_uevent_env
 }
 EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias);
 
-static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size)
+static int __acpi_device_modalias(const struct acpi_device *adev, char *buf, int size)
 {
 	int len, count;
 
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 8569f55e55b6..660834a49c1f 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1267,12 +1267,8 @@ static void acpi_ec_event_handler(struct work_struct *work)
 	spin_unlock_irq(&ec->lock);
 }
 
-static void acpi_ec_handle_interrupt(struct acpi_ec *ec)
+static void clear_gpe_and_advance_transaction(struct acpi_ec *ec, bool interrupt)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&ec->lock, flags);
-
 	/*
 	 * Clear GPE_STS upfront to allow subsequent hardware GPE_STS 0->1
 	 * changes to always trigger a GPE interrupt.
@@ -1289,6 +1285,16 @@ static void acpi_ec_handle_interrupt(struct acpi_ec *ec)
 		acpi_clear_gpe(NULL, ec->gpe);
 
 	advance_transaction(ec, true);
+}
+
+static void acpi_ec_handle_interrupt(struct acpi_ec *ec)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ec->lock, flags);
+
+	clear_gpe_and_advance_transaction(ec, true);
+
 	spin_unlock_irqrestore(&ec->lock, flags);
 }
 
@@ -2083,7 +2089,7 @@ bool acpi_ec_dispatch_gpe(void)
 	if (acpi_ec_gpe_status_set(first_ec)) {
 		pm_pr_dbg("ACPI EC GPE status set\n");
 
-		advance_transaction(first_ec, false);
+		clear_gpe_and_advance_transaction(first_ec, false);
 		work_in_progress = acpi_ec_work_in_progress(first_ec);
 	}
 
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 50dcb35c9965..f4148dc50b9c 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -121,7 +121,7 @@ int acpi_bus_register_early_device(int type);
 /* --------------------------------------------------------------------------
                      Device Matching and Notification
    -------------------------------------------------------------------------- */
-struct acpi_device *acpi_companion_match(const struct device *dev);
+const struct acpi_device *acpi_companion_match(const struct device *dev);
 int __acpi_device_uevent_modalias(const struct acpi_device *adev,
 				  struct kobj_uevent_env *env);