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path: root/drivers/pci/hotplug/cpci_hotplug_pci.c
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Diffstat (limited to 'drivers/pci/hotplug/cpci_hotplug_pci.c')
-rw-r--r--drivers/pci/hotplug/cpci_hotplug_pci.c77
1 files changed, 33 insertions, 44 deletions
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index d8add34177f2..6c48066acb44 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* CompactPCI Hot Plug Driver PCI functions
*
@@ -5,21 +6,6 @@
*
* 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 <scottm@somanetworks.com>
*/
@@ -33,20 +19,18 @@
#define MY_NAME "cpci_hotplug"
-extern int cpci_debug;
-
#define dbg(format, arg...) \
do { \
if (cpci_debug) \
- printk (KERN_DEBUG "%s: " format "\n", \
- MY_NAME , ## arg); \
+ printk(KERN_DEBUG "%s: " format "\n", \
+ MY_NAME, ## arg); \
} while (0)
-#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
-#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
-#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg)
+#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME, ## arg)
+#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME, ## arg)
+#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME, ## arg)
-u8 cpci_get_attention_status(struct slot* slot)
+u8 cpci_get_attention_status(struct slot *slot)
{
int hs_cap;
u16 hs_csr;
@@ -66,7 +50,7 @@ u8 cpci_get_attention_status(struct slot* slot)
return hs_csr & 0x0008 ? 1 : 0;
}
-int cpci_set_attention_status(struct slot* slot, int status)
+int cpci_set_attention_status(struct slot *slot, int status)
{
int hs_cap;
u16 hs_csr;
@@ -93,7 +77,7 @@ int cpci_set_attention_status(struct slot* slot, int status)
return 1;
}
-u16 cpci_get_hs_csr(struct slot* slot)
+u16 cpci_get_hs_csr(struct slot *slot)
{
int hs_cap;
u16 hs_csr;
@@ -111,7 +95,7 @@ u16 cpci_get_hs_csr(struct slot* slot)
return hs_csr;
}
-int cpci_check_and_clear_ins(struct slot* slot)
+int cpci_check_and_clear_ins(struct slot *slot)
{
int hs_cap;
u16 hs_csr;
@@ -140,7 +124,7 @@ int cpci_check_and_clear_ins(struct slot* slot)
return ins;
}
-int cpci_check_ext(struct slot* slot)
+int cpci_check_ext(struct slot *slot)
{
int hs_cap;
u16 hs_csr;
@@ -161,7 +145,7 @@ int cpci_check_ext(struct slot* slot)
return ext;
}
-int cpci_clear_ext(struct slot* slot)
+int cpci_clear_ext(struct slot *slot)
{
int hs_cap;
u16 hs_csr;
@@ -187,7 +171,7 @@ int cpci_clear_ext(struct slot* slot)
return 0;
}
-int cpci_led_on(struct slot* slot)
+int cpci_led_on(struct slot *slot)
{
int hs_cap;
u16 hs_csr;
@@ -208,15 +192,14 @@ int cpci_led_on(struct slot* slot)
slot->devfn,
hs_cap + 2,
hs_csr)) {
- err("Could not set LOO for slot %s",
- hotplug_slot_name(slot->hotplug_slot));
+ err("Could not set LOO for slot %s", slot_name(slot));
return -ENODEV;
}
}
return 0;
}
-int cpci_led_off(struct slot* slot)
+int cpci_led_off(struct slot *slot)
{
int hs_cap;
u16 hs_csr;
@@ -237,8 +220,7 @@ int cpci_led_off(struct slot* slot)
slot->devfn,
hs_cap + 2,
hs_csr)) {
- err("Could not clear LOO for slot %s",
- hotplug_slot_name(slot->hotplug_slot));
+ err("Could not clear LOO for slot %s", slot_name(slot));
return -ENODEV;
}
}
@@ -250,13 +232,16 @@ int cpci_led_off(struct slot* slot)
* Device configuration functions
*/
-int __ref cpci_configure_slot(struct slot *slot)
+int cpci_configure_slot(struct slot *slot)
{
struct pci_dev *dev;
struct pci_bus *parent;
+ int ret = 0;
dbg("%s - enter", __func__);
+ pci_lock_rescan_remove();
+
if (slot->dev == NULL) {
dbg("pci_dev null, finding %02x:%02x:%x",
slot->bus->number, PCI_SLOT(slot->devfn), PCI_FUNC(slot->devfn));
@@ -277,28 +262,28 @@ int __ref cpci_configure_slot(struct slot *slot)
slot->dev = pci_get_slot(slot->bus, slot->devfn);
if (slot->dev == NULL) {
err("Could not find PCI device for slot %02x", slot->number);
- return -ENODEV;
+ ret = -ENODEV;
+ goto out;
}
}
parent = slot->dev->bus;
- list_for_each_entry(dev, &parent->devices, bus_list)
- if (PCI_SLOT(dev->devfn) != PCI_SLOT(slot->devfn))
- continue;
- if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) ||
- (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS))
+ for_each_pci_bridge(dev, parent) {
+ if (PCI_SLOT(dev->devfn) == PCI_SLOT(slot->devfn))
pci_hp_add_bridge(dev);
-
+ }
pci_assign_unassigned_bridge_resources(parent->self);
pci_bus_add_devices(parent);
+ out:
+ pci_unlock_rescan_remove();
dbg("%s - exit", __func__);
- return 0;
+ return ret;
}
-int cpci_unconfigure_slot(struct slot* slot)
+int cpci_unconfigure_slot(struct slot *slot)
{
struct pci_dev *dev, *temp;
@@ -308,6 +293,8 @@ int cpci_unconfigure_slot(struct slot* slot)
return -ENODEV;
}
+ pci_lock_rescan_remove();
+
list_for_each_entry_safe(dev, temp, &slot->bus->devices, bus_list) {
if (PCI_SLOT(dev->devfn) != PCI_SLOT(slot->devfn))
continue;
@@ -318,6 +305,8 @@ int cpci_unconfigure_slot(struct slot* slot)
pci_dev_put(slot->dev);
slot->dev = NULL;
+ pci_unlock_rescan_remove();
+
dbg("%s - exit", __func__);
return 0;
}
generated by cgit (git 2.34.1) at 2025-12-25 15:53:38 +0000