1 files changed, 13 insertions, 31 deletions

diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
index 93b5341d282c..30ee72268790 100644
--- a/drivers/pci/hotplug/s390_pci_hpc.c
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -32,10 +32,15 @@ static int zpci_fn_configured(enum zpci_state state)
  */
 struct slot {
 	struct list_head slot_list;
-	struct hotplug_slot *hotplug_slot;
+	struct hotplug_slot hotplug_slot;
 	struct zpci_dev *zdev;
 };
 
+static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)
+{
+	return container_of(hotplug_slot, struct slot, hotplug_slot);
+}
+
 static inline int slot_configure(struct slot *slot)
 {
 	int ret = sclp_pci_configure(slot->zdev->fid);
@@ -60,7 +65,7 @@ static inline int slot_deconfigure(struct slot *slot)
 
 static int enable_slot(struct hotplug_slot *hotplug_slot)
 {
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	int rc;
 
 	if (slot->zdev->state != ZPCI_FN_STATE_STANDBY)
@@ -88,7 +93,7 @@ out_deconfigure:
 
 static int disable_slot(struct hotplug_slot *hotplug_slot)
 {
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct pci_dev *pdev;
 	int rc;
 
@@ -110,7 +115,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
 
 static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 
 	switch (slot->zdev->state) {
 	case ZPCI_FN_STATE_STANDBY:
@@ -130,7 +135,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	return 0;
 }
 
-static struct hotplug_slot_ops s390_hotplug_slot_ops = {
+static const struct hotplug_slot_ops s390_hotplug_slot_ops = {
 	.enable_slot =		enable_slot,
 	.disable_slot =		disable_slot,
 	.get_power_status =	get_power_status,
@@ -139,8 +144,6 @@ static struct hotplug_slot_ops s390_hotplug_slot_ops = {
 
 int zpci_init_slot(struct zpci_dev *zdev)
 {
-	struct hotplug_slot *hotplug_slot;
-	struct hotplug_slot_info *info;
 	char name[SLOT_NAME_SIZE];
 	struct slot *slot;
 	int rc;
@@ -152,26 +155,11 @@ int zpci_init_slot(struct zpci_dev *zdev)
 	if (!slot)
 		goto error;
 
-	hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL);
-	if (!hotplug_slot)
-		goto error_hp;
-	hotplug_slot->private = slot;
-
-	slot->hotplug_slot = hotplug_slot;
 	slot->zdev = zdev;
-
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
-	if (!info)
-		goto error_info;
-	hotplug_slot->info = info;
-
-	hotplug_slot->ops = &s390_hotplug_slot_ops;
-
-	get_power_status(hotplug_slot, &info->power_status);
-	get_adapter_status(hotplug_slot, &info->adapter_status);
+	slot->hotplug_slot.ops = &s390_hotplug_slot_ops;
 
 	snprintf(name, SLOT_NAME_SIZE, "%08x", zdev->fid);
-	rc = pci_hp_register(slot->hotplug_slot, zdev->bus,
+	rc = pci_hp_register(&slot->hotplug_slot, zdev->bus,
 			     ZPCI_DEVFN, name);
 	if (rc)
 		goto error_reg;
@@ -180,10 +168,6 @@ int zpci_init_slot(struct zpci_dev *zdev)
 	return 0;
 
 error_reg:
-	kfree(info);
-error_info:
-	kfree(hotplug_slot);
-error_hp:
 	kfree(slot);
 error:
 	return -ENOMEM;
@@ -198,9 +182,7 @@ void zpci_exit_slot(struct zpci_dev *zdev)
 		if (slot->zdev != zdev)
 			continue;
 		list_del(&slot->slot_list);
-		pci_hp_deregister(slot->hotplug_slot);
-		kfree(slot->hotplug_slot->info);
-		kfree(slot->hotplug_slot);
+		pci_hp_deregister(&slot->hotplug_slot);
 		kfree(slot);
 	}
 }