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Commit 5b1a960d authored by Kenji Kaneshige's avatar Kenji Kaneshige Committed by Greg Kroah-Hartman
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[PATCH] shpchp - cleanup slot list 



This patch changes SHPCHP driver to use list_head structure for
managing slot list.

Signed-off-by: default avatarKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent dfcd5f68

drivers/pci/hotplug/shpchp.h

+8 −13
Original line number Diff line number Diff line
@@ -56,7 +56,6 @@ extern int shpchp_debug; 
#define SLOT_MAGIC	0x67267321

struct slot {

	u32 magic;

	struct slot *next;

	u8 bus;

	u8 device;

	u16 status;
@@ -87,7 +86,7 @@ struct controller { 
	struct pci_dev *pci_dev;

	struct pci_bus *pci_bus;

	struct event_info event_queue[10];

	struct slot *slot;

	struct list_head slot_list;

	struct hpc_ops *hpc_ops;

	wait_queue_head_t queue;	/* sleep & wake process */

	u8 next_event;
@@ -315,23 +314,19 @@ static inline struct slot *get_slot (struct hotplug_slot *hotplug_slot, const ch 


static inline struct slot *shpchp_find_slot (struct controller *ctrl, u8 device)

{

	struct slot *p_slot, *tmp_slot = NULL;

	struct slot *slot;



	if (!ctrl)

		return NULL;



	p_slot = ctrl->slot;



	while (p_slot && (p_slot->device != device)) {

		tmp_slot = p_slot;

		p_slot = p_slot->next;

	}

	if (p_slot == NULL) {

		err("ERROR: shpchp_find_slot device=0x%x\n", device);

		p_slot = tmp_slot;

	list_for_each_entry(slot, &ctrl->slot_list, slot_list) {

		if (slot->device == device)

			return slot;

	}



	return (p_slot);

	err("%s: slot (device=0x%x) not found\n", __FUNCTION__, device);



	return NULL;

}



static inline int wait_for_ctrl_irq (struct controller *ctrl)

drivers/pci/hotplug/shpchp_core.c

+9 −10
Original line number Diff line number Diff line
@@ -173,8 +173,7 @@ static int init_slots(struct controller *ctrl) 
			goto error_name;

		}



		slot->next = ctrl->slot;

		ctrl->slot = slot;

		list_add(&slot->slot_list, &ctrl->slot_list);

	}



	return 0;
@@ -192,15 +191,14 @@ static int init_slots(struct controller *ctrl) 


static void cleanup_slots(struct controller *ctrl)

{

	struct slot *old_slot, *next_slot;



	old_slot = ctrl->slot;

	ctrl->slot = NULL;

	struct list_head *tmp;

	struct list_head *next;

	struct slot *slot;



	while (old_slot) {

		next_slot = old_slot->next;

		pci_hp_deregister(old_slot->hotplug_slot);

		old_slot = next_slot;

	list_for_each_safe(tmp, next, &ctrl->slot_list) {

		slot = list_entry(tmp, struct slot, slot_list);

		list_del(&slot->slot_list);

		pci_hp_deregister(slot->hotplug_slot);

	}

}
@@ -391,6 +389,7 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 
		goto err_out_none;

	}

	memset(ctrl, 0, sizeof(struct controller));

	INIT_LIST_HEAD(&ctrl->slot_list);



	rc = shpc_init(ctrl, pdev);

	if (rc) {