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[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>
This commit is contained in:
linas@austin.ibm.com 2006-01-12 18:28:22 -06:00 committed by Greg Kroah-Hartman
parent 8fe64399cc
commit e06b80b78d
3 changed files with 30 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/pci/hotplug/rpaphp.h
View File

@ -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);

38
drivers/pci/hotplug/rpaphp_core.c
View File

@ -393,22 +393,40 @@ static void __exit rpaphp_exit(void)
cleanup_slots();
}
static int __enable_slot(struct slot *slot)
{
int state;
int retval;
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 = 0;
int retval;
struct slot *slot = (struct slot *)hotplug_slot->private;
if (slot->state == CONFIGURED) {
dbg("%s: %s is already enabled\n", __FUNCTION__, slot->name);
goto exit;
}
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;
}

30
drivers/pci/hotplug/rpaphp_pci.c
View File

@ -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;
}