forked from luck/tmp_suning_uos_patched
pci hotplug: fix rpaphp directory naming
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>
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@ -74,7 +74,6 @@ struct slot {
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u32 type;
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u32 power_domain;
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char *name;
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char *location;
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struct device_node *dn;
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struct pci_bus *bus;
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struct list_head *pci_devs;
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@ -64,19 +64,6 @@ int rpaphp_get_sensor_state(struct slot *slot, int *state)
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return rc;
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}
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static void set_slot_name(struct slot *slot)
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{
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struct pci_bus *bus = slot->bus;
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struct pci_dev *bridge;
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bridge = bus->self;
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if (bridge)
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strcpy(slot->name, pci_name(bridge));
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else
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sprintf(slot->name, "%04x:%02x:00.0", pci_domain_nr(bus),
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bus->number);
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}
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/**
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* rpaphp_enable_slot - record slot state, config pci device
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* @slot: target &slot
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@ -115,7 +102,6 @@ int rpaphp_enable_slot(struct slot *slot)
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info->adapter_status = EMPTY;
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slot->bus = bus;
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slot->pci_devs = &bus->devices;
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set_slot_name(slot);
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/* if there's an adapter in the slot, go add the pci devices */
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if (state == PRESENT) {
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@ -33,23 +33,31 @@
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#include <asm/rtas.h>
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#include "rpaphp.h"
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static ssize_t location_read_file (struct hotplug_slot *php_slot, char *buf)
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static ssize_t address_read_file (struct hotplug_slot *php_slot, char *buf)
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{
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char *value;
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int retval = -ENOENT;
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int retval;
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struct slot *slot = (struct slot *)php_slot->private;
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struct pci_bus *bus;
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if (!slot)
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return retval;
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return -ENOENT;
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bus = slot->bus;
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if (!bus)
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return -ENOENT;
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if (bus->self)
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retval = sprintf(buf, pci_name(bus->self));
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else
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retval = sprintf(buf, "%04x:%02x:00.0",
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pci_domain_nr(bus), bus->number);
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value = slot->location;
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retval = sprintf (buf, "%s\n", value);
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return retval;
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}
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static struct hotplug_slot_attribute php_attr_location = {
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.attr = {.name = "phy_location", .mode = S_IFREG | S_IRUGO},
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.show = location_read_file,
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static struct hotplug_slot_attribute php_attr_address = {
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.attr = {.name = "address", .mode = S_IFREG | S_IRUGO},
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.show = address_read_file,
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};
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/* free up the memory used by a slot */
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@ -64,7 +72,6 @@ void dealloc_slot_struct(struct slot *slot)
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kfree(slot->hotplug_slot->info);
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kfree(slot->hotplug_slot->name);
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kfree(slot->hotplug_slot);
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kfree(slot->location);
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kfree(slot);
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}
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@ -83,16 +90,13 @@ struct slot *alloc_slot_struct(struct device_node *dn,
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GFP_KERNEL);
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if (!slot->hotplug_slot->info)
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goto error_hpslot;
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slot->hotplug_slot->name = kmalloc(BUS_ID_SIZE + 1, GFP_KERNEL);
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slot->hotplug_slot->name = kmalloc(strlen(drc_name) + 1, GFP_KERNEL);
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if (!slot->hotplug_slot->name)
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goto error_info;
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slot->location = kmalloc(strlen(drc_name) + 1, GFP_KERNEL);
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if (!slot->location)
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goto error_name;
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slot->name = slot->hotplug_slot->name;
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strcpy(slot->name, drc_name);
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slot->dn = dn;
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slot->index = drc_index;
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strcpy(slot->location, drc_name);
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slot->power_domain = power_domain;
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slot->hotplug_slot->private = slot;
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slot->hotplug_slot->ops = &rpaphp_hotplug_slot_ops;
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@ -100,8 +104,6 @@ struct slot *alloc_slot_struct(struct device_node *dn,
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return (slot);
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error_name:
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kfree(slot->hotplug_slot->name);
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error_info:
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kfree(slot->hotplug_slot->info);
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error_hpslot:
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@ -133,8 +135,8 @@ int rpaphp_deregister_slot(struct slot *slot)
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list_del(&slot->rpaphp_slot_list);
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/* remove "phy_location" file */
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sysfs_remove_file(&php_slot->kobj, &php_attr_location.attr);
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/* remove "address" file */
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sysfs_remove_file(&php_slot->kobj, &php_attr_address.attr);
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retval = pci_hp_deregister(php_slot);
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if (retval)
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@ -166,8 +168,8 @@ int rpaphp_register_slot(struct slot *slot)
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return retval;
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}
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/* create "phy_location" file */
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retval = sysfs_create_file(&php_slot->kobj, &php_attr_location.attr);
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/* create "address" file */
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retval = sysfs_create_file(&php_slot->kobj, &php_attr_address.attr);
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if (retval) {
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err("sysfs_create_file failed with error %d\n", retval);
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goto sysfs_fail;
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@ -175,8 +177,7 @@ int rpaphp_register_slot(struct slot *slot)
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/* add slot to our internal list */
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list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head);
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info("Slot [%s](PCI location=%s) registered\n", slot->name,
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slot->location);
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info("Slot [%s] registered\n", slot->name);
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return 0;
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sysfs_fail:
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