From kaneshige.kenji@jp.fujitsu.com Wed Jan 25 16:59:16 2006 Message-ID: <43D81E84.8080102@jp.fujitsu.com> Date: Thu, 26 Jan 2006 09:57:40 +0900 From: Kenji Kaneshige To: Greg KH Cc: Kenji Kaneshige Subject: [PATCH 3/11] shpchp - cleanup slot list This patch changes SHPCHP driver to use list_head structure for managing slot list. Signed-off-by: Kenji Kaneshige Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/shpchp.h | 21 ++++++++------------- drivers/pci/hotplug/shpchp_core.c | 21 ++++++++++----------- 2 files changed, 18 insertions(+), 24 deletions(-) --- gregkh-2.6.orig/drivers/pci/hotplug/shpchp.h +++ gregkh-2.6/drivers/pci/hotplug/shpchp.h @@ -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 (str 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) --- gregkh-2.6.orig/drivers/pci/hotplug/shpchp_core.c +++ gregkh-2.6/drivers/pci/hotplug/shpchp_core.c @@ -173,8 +173,7 @@ static int init_slots(struct controller goto error_name; } - slot->next = ctrl->slot; - ctrl->slot = slot; + list_add(&slot->slot_list, &ctrl->slot_list); } return 0; @@ -192,15 +191,14 @@ error: static void cleanup_slots(struct controller *ctrl) { - struct slot *old_slot, *next_slot; - - old_slot = ctrl->slot; - ctrl->slot = NULL; - - while (old_slot) { - next_slot = old_slot->next; - pci_hp_deregister(old_slot->hotplug_slot); - old_slot = next_slot; + struct list_head *tmp; + struct list_head *next; + struct slot *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 *pd goto err_out_none; } memset(ctrl, 0, sizeof(struct controller)); + INIT_LIST_HEAD(&ctrl->slot_list); rc = shpc_init(ctrl, pdev); if (rc) {