Commit e06b80b7 authored by linas@austin.ibm.com's avatar linas@austin.ibm.com Committed by Greg Kroah-Hartman

[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: default avatarLinas Vepstas <linas@austin.ibm.com>
Acked-by: default avatarJohn Rose <johnrose@austin.ibm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 8fe64399
......@@ -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);
......
......@@ -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;
}
......
......@@ -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;
}
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment