[PATCH] powerpc/PCI hotplug: merge rpaphp_enable_pci_slot()

Remove general baroqueness.  The function rpaphp_enable_pci_slot()
has a fairly simple logic structure, once all of the debug printk's
are removed. Its called from only one place, and that place also
has a very simple structure once he printk's are removed.  Merge
the two together.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Acked-by: John Rose <johnrose@austin.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/pci/hotplug/rpaphp.h

@@ -91,6 +91,7 @@ extern int num_slots;
 extern int rpaphp_enable_pci_slot(struct slot *slot);
 extern int register_pci_slot(struct slot *slot);
 extern int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value);
+extern int rpaphp_get_sensor_state(struct slot *slot, int *state);
 
 /* rpaphp_core.c */
 extern int rpaphp_add_slot(struct device_node *dn);

drivers/pci/hotplug/rpaphp_core.c

@@ -393,22 +393,40 @@ static void __exit rpaphp_exit(void)
 	cleanup_slots();
 }
 
-static int enable_slot(struct hotplug_slot *hotplug_slot)
+static int __enable_slot(struct slot *slot)
 {
-	int retval = 0;
-	struct slot *slot = (struct slot *)hotplug_slot->private;
+	int state;
+	int retval;
 
-	if (slot->state == CONFIGURED) {
-		dbg("%s: %s is already enabled\n", __FUNCTION__, slot->name);
-		goto exit;
+	if (slot->state == CONFIGURED)
+		return 0;
+
+	retval = rpaphp_get_sensor_state(slot, &state);
+	if (retval)
+		return retval;
+
+	if (state == PRESENT) {
+		pcibios_add_pci_devices(slot->bus);
+		slot->state = CONFIGURED;
+	} else if (state == EMPTY) {
+		slot->state = EMPTY;
+	} else {
+		err("%s: slot[%s] is in invalid state\n", __FUNCTION__, slot->name);
+		slot->state = NOT_VALID;
+		return -EINVAL;
 	}
+	return 0;
+}
+
+static int enable_slot(struct hotplug_slot *hotplug_slot)
+{
+	int retval;
+	struct slot *slot = (struct slot *)hotplug_slot->private;
 
-	dbg("ENABLING SLOT %s\n", slot->name);
 	down(&rpaphp_sem);
-	retval = rpaphp_enable_pci_slot(slot);
+	retval = __enable_slot(slot);
 	up(&rpaphp_sem);
-exit:
-	dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval);
+
 	return retval;
 }
 

drivers/pci/hotplug/rpaphp_pci.c

@@ -32,7 +32,7 @@
 #include "../pci.h"		/* for pci_add_new_bus */
 #include "rpaphp.h"
 
-static int rpaphp_get_sensor_state(struct slot *slot, int *state)
+int rpaphp_get_sensor_state(struct slot *slot, int *state)
 {
 	int rc;
 	int setlevel;
@@ -212,31 +212,3 @@ exit_rc:
 	return rc;
 }
 
-int rpaphp_enable_pci_slot(struct slot *slot)
-{
-	int retval = 0, state;
-
-	retval = rpaphp_get_sensor_state(slot, &state);
-	if (retval)
-		goto exit;
-	dbg("%s: sensor state[%d]\n", __FUNCTION__, state);
-	/* if slot is not empty, enable the adapter */
-	if (state == PRESENT) {
-		dbg("%s : slot[%s] is occupied.\n", __FUNCTION__, slot->name);
-		pcibios_add_pci_devices(slot->bus);
-		slot->state = CONFIGURED;
-		info("%s: devices in slot[%s] configured\n",
-					__FUNCTION__, slot->name);
-	} else if (state == EMPTY) {
-		dbg("%s : slot[%s] is empty\n", __FUNCTION__, slot->name);
-		slot->state = EMPTY;
-	} else {
-		err("%s: slot[%s] is in invalid state\n", __FUNCTION__,
-		    slot->name);
-		slot->state = NOT_VALID;
-		retval = -EINVAL;
-	}
-exit:
-	dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval);
-	return retval;
-}