1 files changed, 24 insertions, 85 deletions

diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 33d300d12411..47a3ed16159a 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Compaq Hot Plug Controller Driver
  *
@@ -7,21 +8,6 @@
  *
  * All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  * Send feedback to <greg@kroah.com>
  *
  * Jan 12, 2003 -	Added 66/100/133MHz PCI-X support,
@@ -135,7 +121,6 @@ static int init_SERR(struct controller *ctrl)
 {
 	u32 tempdword;
 	u32 number_of_slots;
-	u8 physical_slot;
 
 	if (!ctrl)
 		return 1;
@@ -145,7 +130,6 @@ static int init_SERR(struct controller *ctrl)
 	number_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F;
 	/* Loop through slots */
 	while (number_of_slots) {
-		physical_slot = tempdword;
 		writeb(0, ctrl->hpc_reg + SLOT_SERR);
 		tempdword++;
 		number_of_slots--;
@@ -189,7 +173,6 @@ static void pci_print_IRQ_route(void)
 		dbg("%d %d %d %d\n", tbus, tdevice >> 3, tdevice & 0x7, tslot);
 
 	}
-	return;
 }
 
 
@@ -280,17 +263,6 @@ static void __iomem *get_SMBIOS_entry(void __iomem *smbios_start,
 	return previous;
 }
 
-static void release_slot(struct hotplug_slot *hotplug_slot)
-{
-	struct slot *slot = hotplug_slot->private;
-
-	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
-
-	kfree(slot->hotplug_slot->info);
-	kfree(slot->hotplug_slot);
-	kfree(slot);
-}
-
 static int ctrl_slot_cleanup(struct controller *ctrl)
 {
 	struct slot *old_slot, *next_slot;
@@ -299,9 +271,9 @@ static int ctrl_slot_cleanup(struct controller *ctrl)
 	ctrl->slot = NULL;
 
 	while (old_slot) {
-		/* memory will be freed by the release_slot callback */
 		next_slot = old_slot->next;
-		pci_hp_deregister(old_slot->hotplug_slot);
+		pci_hp_deregister(&old_slot->hotplug_slot);
+		kfree(old_slot);
 		old_slot = next_slot;
 	}
 
@@ -324,9 +296,10 @@ static int ctrl_slot_cleanup(struct controller *ctrl)
  *
  * Won't work for more than one PCI-PCI bridge in a slot.
  *
- * @bus_num - bus number of PCI device
- * @dev_num - device number of PCI device
- * @slot - Pointer to u8 where slot number will	be returned
+ * @bus: pointer to the PCI bus structure
+ * @bus_num: bus number of PCI device
+ * @dev_num: device number of PCI device
+ * @slot: Pointer to u8 where slot number will	be returned
  *
  * Output:	SUCCESS or FAILURE
  */
@@ -355,7 +328,7 @@ get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot)
 		} else {
 			/* Did not get a match on the target PCI device. Check
 			 * if the current IRQ table entry is a PCI-to-PCI
-			 * bridge device.  If so, and it's secondary bus
+			 * bridge device.  If so, and its secondary bus
 			 * matches the bus number for the target device, I need
 			 * to save the bridge's slot number.  If I can not find
 			 * an entry for the target device, I will have to
@@ -442,7 +415,7 @@ cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func,
 static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
 {
 	struct pci_func *slot_func;
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct controller *ctrl = slot->ctrl;
 	u8 bus;
 	u8 devfn;
@@ -469,7 +442,7 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
 static int process_SI(struct hotplug_slot *hotplug_slot)
 {
 	struct pci_func *slot_func;
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct controller *ctrl = slot->ctrl;
 	u8 bus;
 	u8 devfn;
@@ -501,7 +474,7 @@ static int process_SI(struct hotplug_slot *hotplug_slot)
 static int process_SS(struct hotplug_slot *hotplug_slot)
 {
 	struct pci_func *slot_func;
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct controller *ctrl = slot->ctrl;
 	u8 bus;
 	u8 devfn;
@@ -528,7 +501,7 @@ static int process_SS(struct hotplug_slot *hotplug_slot)
 
 static int hardware_test(struct hotplug_slot *hotplug_slot, u32 value)
 {
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct controller *ctrl = slot->ctrl;
 
 	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
@@ -539,7 +512,7 @@ static int hardware_test(struct hotplug_slot *hotplug_slot, u32 value)
 
 static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct controller *ctrl = slot->ctrl;
 
 	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
@@ -550,7 +523,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
 
 static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct controller *ctrl = slot->ctrl;
 
 	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
@@ -561,7 +534,7 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
 
 static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct controller *ctrl = slot->ctrl;
 
 	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
@@ -573,7 +546,7 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
 
 static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
-	struct slot *slot = hotplug_slot->private;
+	struct slot *slot = to_slot(hotplug_slot);
 	struct controller *ctrl = slot->ctrl;
 
 	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
@@ -583,7 +556,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	return 0;
 }
 
-static struct hotplug_slot_ops cpqphp_hotplug_slot_ops = {
+static const struct hotplug_slot_ops cpqphp_hotplug_slot_ops = {
 	.set_attention_status =	set_attention_status,
 	.enable_slot =		process_SI,
 	.disable_slot =		process_SS,
@@ -601,8 +574,6 @@ static int ctrl_slot_setup(struct controller *ctrl,
 			void __iomem *smbios_table)
 {
 	struct slot *slot;
-	struct hotplug_slot *hotplug_slot;
-	struct hotplug_slot_info *hotplug_slot_info;
 	struct pci_bus *bus = ctrl->pci_bus;
 	u8 number_of_slots;
 	u8 slot_device;
@@ -628,22 +599,6 @@ static int ctrl_slot_setup(struct controller *ctrl,
 			goto error;
 		}
 
-		slot->hotplug_slot = kzalloc(sizeof(*(slot->hotplug_slot)),
-						GFP_KERNEL);
-		if (!slot->hotplug_slot) {
-			result = -ENOMEM;
-			goto error_slot;
-		}
-		hotplug_slot = slot->hotplug_slot;
-
-		hotplug_slot->info = kzalloc(sizeof(*(hotplug_slot->info)),
-							GFP_KERNEL);
-		if (!hotplug_slot->info) {
-			result = -ENOMEM;
-			goto error_hpslot;
-		}
-		hotplug_slot_info = hotplug_slot->info;
-
 		slot->ctrl = ctrl;
 		slot->bus = ctrl->bus;
 		slot->device = slot_device;
@@ -661,9 +616,8 @@ static int ctrl_slot_setup(struct controller *ctrl,
 
 		slot->p_sm_slot = slot_entry;
 
-		init_timer(&slot->task_event);
+		timer_setup(&slot->task_event, cpqhp_pushbutton_thread, 0);
 		slot->task_event.expires = jiffies + 5 * HZ;
-		slot->task_event.function = cpqhp_pushbutton_thread;
 
 		/*FIXME: these capabilities aren't used but if they are
 		 *	 they need to be correctly implemented
@@ -693,30 +647,20 @@ static int ctrl_slot_setup(struct controller *ctrl,
 			((read_slot_enable(ctrl) << 2) >> ctrl_slot) & 0x04;
 
 		/* register this slot with the hotplug pci core */
-		hotplug_slot->release = &release_slot;
-		hotplug_slot->private = slot;
 		snprintf(name, SLOT_NAME_SIZE, "%u", slot->number);
-		hotplug_slot->ops = &cpqphp_hotplug_slot_ops;
-
-		hotplug_slot_info->power_status = get_slot_enabled(ctrl, slot);
-		hotplug_slot_info->attention_status =
-			cpq_get_attention_status(ctrl, slot);
-		hotplug_slot_info->latch_status =
-			cpq_get_latch_status(ctrl, slot);
-		hotplug_slot_info->adapter_status =
-			get_presence_status(ctrl, slot);
+		slot->hotplug_slot.ops = &cpqphp_hotplug_slot_ops;
 
 		dbg("registering bus %d, dev %d, number %d, ctrl->slot_device_offset %d, slot %d\n",
 				slot->bus, slot->device,
 				slot->number, ctrl->slot_device_offset,
 				slot_number);
-		result = pci_hp_register(hotplug_slot,
+		result = pci_hp_register(&slot->hotplug_slot,
 					 ctrl->pci_dev->bus,
 					 slot->device,
 					 name);
 		if (result) {
 			err("pci_hp_register failed with error %d\n", result);
-			goto error_info;
+			goto error_slot;
 		}
 
 		slot->next = ctrl->slot;
@@ -728,10 +672,6 @@ static int ctrl_slot_setup(struct controller *ctrl,
 	}
 
 	return 0;
-error_info:
-	kfree(hotplug_slot_info);
-error_hpslot:
-	kfree(hotplug_slot);
 error_slot:
 	kfree(slot);
 error:
@@ -836,7 +776,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	bus = pdev->subordinate;
 	if (!bus) {
-		dev_notice(&pdev->dev, "the device is not a bridge, skipping\n");
+		pci_notice(pdev, "the device is not a bridge, skipping\n");
 		rc = -ENODEV;
 		goto err_disable_device;
 	}
@@ -884,7 +824,6 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	ctrl = kzalloc(sizeof(struct controller), GFP_KERNEL);
 	if (!ctrl) {
-		err("%s : out of memory\n", __func__);
 		rc = -ENOMEM;
 		goto err_disable_device;
 	}
@@ -1315,7 +1254,7 @@ static void __exit unload_cpqphpd(void)
 	struct pci_resource *res;
 	struct pci_resource *tres;
 
-	rc = compaq_nvram_store(cpqhp_rom_start);
+	compaq_nvram_store(cpqhp_rom_start);
 
 	ctrl = cpqhp_ctrl_list;
 
@@ -1417,7 +1356,7 @@ static void __exit unload_cpqphpd(void)
 		iounmap(smbios_start);
 }
 
-static struct pci_device_id hpcd_pci_tbl[] = {
+static const struct pci_device_id hpcd_pci_tbl[] = {
 	{
 	/* handle any PCI Hotplug controller */
 	.class =        ((PCI_CLASS_SYSTEM_PCI_HOTPLUG << 8) | 0x00),