s390/pci/hotplug: convert to be builtin only

Convert s390' pci hotplug to be builtin only, with no module option.

Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2 files changed, 17 insertions, 41 deletions

diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index d0872769d44..64081f85ffd 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -116,11 +116,6 @@ struct zpci_dev {
 	struct dentry	*debugfs_perf;
 };
 
-struct pci_hp_callback_ops {
-	int (*create_slot)	(struct zpci_dev *zdev);
-	void (*remove_slot)	(struct zpci_dev *zdev);
-};
-
 static inline bool zdev_enabled(struct zpci_dev *zdev)
 {
 	return (zdev->fh & (1UL << 31)) ? true : false;
@@ -154,6 +149,17 @@ static inline void zpci_event_error(void *e) {}
 static inline void zpci_event_availability(void *e) {}
 #endif /* CONFIG_PCI */
 
+#ifdef CONFIG_HOTPLUG_PCI_S390
+int zpci_init_slot(struct zpci_dev *);
+void zpci_exit_slot(struct zpci_dev *);
+#else /* CONFIG_HOTPLUG_PCI_S390 */
+static inline int zpci_init_slot(struct zpci_dev *zdev)
+{
+	return 0;
+}
+static inline void zpci_exit_slot(struct zpci_dev *zdev) {}
+#endif /* CONFIG_HOTPLUG_PCI_S390 */
+
 /* Helpers */
 struct zpci_dev *get_zdev(struct pci_dev *);
 struct zpci_dev *get_zdev_by_fid(u32);
@@ -167,14 +173,6 @@ void zpci_sysfs_remove_device(struct device *);
 int zpci_dma_init(void);
 void zpci_dma_exit(void);
 
-/* Hotplug */
-extern struct mutex zpci_list_lock;
-extern struct list_head zpci_list;
-extern unsigned int s390_pci_probe;
-
-void zpci_register_hp_ops(struct pci_hp_callback_ops *);
-void zpci_deregister_hp_ops(void);
-
 /* FMB */
 int zpci_fmb_enable_device(struct zpci_dev *);
 int zpci_fmb_disable_device(struct zpci_dev *);
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index d65dc4f50e2..56f8a1c4d9b 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -45,11 +45,8 @@
 #define ZPCI_NR_DEVICES			CONFIG_PCI_NR_FUNCTIONS
 
 /* list of all detected zpci devices */
-LIST_HEAD(zpci_list);
-EXPORT_SYMBOL_GPL(zpci_list);
-DEFINE_MUTEX(zpci_list_lock);
-EXPORT_SYMBOL_GPL(zpci_list_lock);
-
+static LIST_HEAD(zpci_list);
+static DEFINE_MUTEX(zpci_list_lock);
 
 static void zpci_enable_irq(struct irq_data *data);
 static void zpci_disable_irq(struct irq_data *data);
@@ -60,8 +57,6 @@ static struct irq_chip zpci_irq_chip = {
 	.irq_mask = zpci_disable_irq,
 };
 
-static struct pci_hp_callback_ops *hotplug_ops;
-
 static DECLARE_BITMAP(zpci_domain, ZPCI_NR_DEVICES);
 static DEFINE_SPINLOCK(zpci_domain_lock);
 
@@ -828,10 +823,10 @@ int zpci_create_device(struct zpci_dev *zdev)
 
 	mutex_lock(&zpci_list_lock);
 	list_add_tail(&zdev->entry, &zpci_list);
-	if (hotplug_ops)
-		hotplug_ops->create_slot(zdev);
 	mutex_unlock(&zpci_list_lock);
 
+	zpci_init_slot(zdev);
+
 	return 0;
 
 out_disable:
@@ -884,24 +879,7 @@ static void zpci_mem_exit(void)
 	kmem_cache_destroy(zdev_fmb_cache);
 }
 
-void zpci_register_hp_ops(struct pci_hp_callback_ops *ops)
-{
-	mutex_lock(&zpci_list_lock);
-	hotplug_ops = ops;
-	mutex_unlock(&zpci_list_lock);
-}
-EXPORT_SYMBOL_GPL(zpci_register_hp_ops);
-
-void zpci_deregister_hp_ops(void)
-{
-	mutex_lock(&zpci_list_lock);
-	hotplug_ops = NULL;
-	mutex_unlock(&zpci_list_lock);
-}
-EXPORT_SYMBOL_GPL(zpci_deregister_hp_ops);
-
-unsigned int s390_pci_probe;
-EXPORT_SYMBOL_GPL(s390_pci_probe);
+static unsigned int s390_pci_probe;
 
 char * __init pcibios_setup(char *str)
 {
@@ -960,4 +938,4 @@ out_mem:
 out:
 	return rc;
 }
-subsys_initcall(pci_base_init);
+subsys_initcall_sync(pci_base_init);