luck/tmp_suning_uos_patched
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pci hotplug: fix rpaphp directory naming

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Fix presentation of the slot number in the /sys/bus/pci/slots
directory to match that used in the majority of other drivers.

> Greg said:
> How is anyone supposed to write sane managability tools in the
> presence
> of such anarchy?
>
> > ~ # cat /sys/bus/pci/slots/0000:00:02.2/phy_location
> > U787A.001.DNZ00Z5-P1-C2
>
> Right.  This should look like:
>
> # cat /sys/bus/pci/slots/U787A.001.DNZ00Z5-P1-C2/address
> 0000:00:02

This patch implements exactly what you describe. Boot tested.
I assume you really mean it -- if so, then please review and
ack the patch !?

I have absolutely no clue if this breaks any existing IBM tools.
I'm pretty sure it doesn't ... but attention Mike Strosaker! does it?

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: <strosake@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Linas Vepstas 2007-11-25 23:51:37 -08:00 committed by Greg Kroah-Hartman
parent 677cc6443b
commit 1b7c9fcaa1
3 changed files with 24 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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

@ -74,7 +74,6 @@ struct slot {
u32 type;
u32 power_domain;
char *name;
char *location;
struct device_node *dn;
struct pci_bus *bus;
struct list_head *pci_devs;

14
drivers/pci/hotplug/rpaphp_pci.c
View File

@ -64,19 +64,6 @@ int rpaphp_get_sensor_state(struct slot *slot, int *state)
return rc;
}
static void set_slot_name(struct slot *slot)
{
struct pci_bus *bus = slot->bus;
struct pci_dev *bridge;
bridge = bus->self;
if (bridge)
strcpy(slot->name, pci_name(bridge));
else
sprintf(slot->name, "%04x:%02x:00.0", pci_domain_nr(bus),
bus->number);
}
/**
* rpaphp_enable_slot - record slot state, config pci device
* @slot: target &slot
@ -115,7 +102,6 @@ int rpaphp_enable_slot(struct slot *slot)
info->adapter_status = EMPTY;
slot->bus = bus;
slot->pci_devs = &bus->devices;
set_slot_name(slot);
/* if there's an adapter in the slot, go add the pci devices */
if (state == PRESENT) {

47
drivers/pci/hotplug/rpaphp_slot.c
View File

@ -33,23 +33,31 @@
#include <asm/rtas.h>
#include "rpaphp.h"
static ssize_t location_read_file (struct hotplug_slot *php_slot, char *buf)
static ssize_t address_read_file (struct hotplug_slot *php_slot, char *buf)
{
char *value;
int retval = -ENOENT;
int retval;
struct slot *slot = (struct slot *)php_slot->private;
struct pci_bus *bus;
if (!slot)
return retval;
return -ENOENT;
bus = slot->bus;
if (!bus)
return -ENOENT;
if (bus->self)
retval = sprintf(buf, pci_name(bus->self));
else
retval = sprintf(buf, "%04x:%02x:00.0",
pci_domain_nr(bus), bus->number);
value = slot->location;
retval = sprintf (buf, "%s\n", value);
return retval;
}
static struct hotplug_slot_attribute php_attr_location = {
.attr = {.name = "phy_location", .mode = S_IFREG | S_IRUGO},
.show = location_read_file,
static struct hotplug_slot_attribute php_attr_address = {
.attr = {.name = "address", .mode = S_IFREG | S_IRUGO},
.show = address_read_file,
};
/* free up the memory used by a slot */
@ -64,7 +72,6 @@ void dealloc_slot_struct(struct slot *slot)
kfree(slot->hotplug_slot->info);
kfree(slot->hotplug_slot->name);
kfree(slot->hotplug_slot);
kfree(slot->location);
kfree(slot);
}
@ -83,16 +90,13 @@ struct slot *alloc_slot_struct(struct device_node *dn,
GFP_KERNEL);
if (!slot->hotplug_slot->info)
goto error_hpslot;
slot->hotplug_slot->name = kmalloc(BUS_ID_SIZE + 1, GFP_KERNEL);
slot->hotplug_slot->name = kmalloc(strlen(drc_name) + 1, GFP_KERNEL);
if (!slot->hotplug_slot->name)
goto error_info;
slot->location = kmalloc(strlen(drc_name) + 1, GFP_KERNEL);
if (!slot->location)
goto error_name;
slot->name = slot->hotplug_slot->name;
strcpy(slot->name, drc_name);
slot->dn = dn;
slot->index = drc_index;
strcpy(slot->location, drc_name);
slot->power_domain = power_domain;
slot->hotplug_slot->private = slot;
slot->hotplug_slot->ops = &rpaphp_hotplug_slot_ops;
@ -100,8 +104,6 @@ struct slot *alloc_slot_struct(struct device_node *dn,
return (slot);
error_name:
kfree(slot->hotplug_slot->name);
error_info:
kfree(slot->hotplug_slot->info);
error_hpslot:
@ -133,8 +135,8 @@ int rpaphp_deregister_slot(struct slot *slot)
list_del(&slot->rpaphp_slot_list);
/* remove "phy_location" file */
sysfs_remove_file(&php_slot->kobj, &php_attr_location.attr);
/* remove "address" file */
sysfs_remove_file(&php_slot->kobj, &php_attr_address.attr);
retval = pci_hp_deregister(php_slot);
if (retval)
@ -166,8 +168,8 @@ int rpaphp_register_slot(struct slot *slot)
return retval;
}
/* create "phy_location" file */
retval = sysfs_create_file(&php_slot->kobj, &php_attr_location.attr);
/* create "address" file */
retval = sysfs_create_file(&php_slot->kobj, &php_attr_address.attr);
if (retval) {
err("sysfs_create_file failed with error %d\n", retval);
goto sysfs_fail;
@ -175,8 +177,7 @@ int rpaphp_register_slot(struct slot *slot)
/* add slot to our internal list */
list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head);
info("Slot [%s](PCI location=%s) registered\n", slot->name,
slot->location);
info("Slot [%s] registered\n", slot->name);
return 0;
sysfs_fail: