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Message-Id: <1348080894-23412-25-git-send-email-yinghai@kernel.org>
Date: Wed, 19 Sep 2012 11:54:38 -0700
From: Yinghai Lu <yinghai@...nel.org>
To: Bjorn Helgaas <bhelgaas@...gle.com>, Len Brown <lenb@...nel.org>,
Taku Izumi <izumi.taku@...fujitsu.com>,
Jiang Liu <jiang.liu@...wei.com>, x86 <x86@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-acpi@...r.kernel.org, Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 24/40] PCI, acpi: Update acpi_pci_driver add/remove interface
To take acpi_pci_root pointer instead, so later caller will not need to
check the apci_pci_root list to find it.
Suggested-by: Bjorn Helgaas <bhelgaas@...gle.com>
Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
drivers/acpi/pci_root.c | 4 ++--
drivers/acpi/pci_slot.c | 12 +++++++-----
drivers/pci/hotplug/acpiphp_glue.c | 12 +++++++-----
include/linux/acpi.h | 4 ++--
4 files changed, 18 insertions(+), 14 deletions(-)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 72a2c98..3d92c0e 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -90,7 +90,7 @@ int acpi_pci_register_driver(struct acpi_pci_driver *driver)
return 0;
list_for_each_entry(root, &acpi_pci_roots, node) {
- driver->add(root->device->handle);
+ driver->add(root);
n++;
}
@@ -116,7 +116,7 @@ void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
return;
list_for_each_entry(root, &acpi_pci_roots, node)
- driver->remove(root->device->handle);
+ driver->remove(root);
}
EXPORT_SYMBOL(acpi_pci_unregister_driver);
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index e50e31a..1c16c20 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -67,8 +67,8 @@ struct acpi_pci_slot {
struct list_head list; /* node in the list of slots */
};
-static int acpi_pci_slot_add(acpi_handle handle);
-static void acpi_pci_slot_remove(acpi_handle handle);
+static int acpi_pci_slot_add(struct acpi_pci_root *root);
+static void acpi_pci_slot_remove(struct acpi_pci_root *root);
static LIST_HEAD(slot_list);
static DEFINE_MUTEX(slot_list_lock);
@@ -295,11 +295,11 @@ walk_root_bridge(acpi_handle handle, acpi_walk_callback user_function)
* @handle: points to an acpi_pci_root
*/
static int
-acpi_pci_slot_add(acpi_handle handle)
+acpi_pci_slot_add(struct acpi_pci_root *root)
{
acpi_status status;
- status = walk_root_bridge(handle, register_slot);
+ status = walk_root_bridge(root->device->handle, register_slot);
if (ACPI_FAILURE(status))
err("%s: register_slot failure - %d\n", __func__, status);
@@ -311,12 +311,14 @@ acpi_pci_slot_add(acpi_handle handle)
* @handle: points to an acpi_pci_root
*/
static void
-acpi_pci_slot_remove(acpi_handle handle)
+acpi_pci_slot_remove(struct acpi_pci_root *root)
{
struct acpi_pci_slot *slot, *tmp;
struct pci_bus *pbus;
+ acpi_handle handle;
mutex_lock(&slot_list_lock);
+ handle = root->device->handle;
list_for_each_entry_safe(slot, tmp, &slot_list, list) {
if (slot->root_handle == handle) {
list_del(&slot->list);
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 00fa414..201c5f7 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -382,10 +382,10 @@ static inline void config_p2p_bridge_flags(struct acpiphp_bridge *bridge)
/* allocate and initialize host bridge data structure */
-static void add_host_bridge(acpi_handle *handle)
+static void add_host_bridge(struct acpi_pci_root *root)
{
+ acpi_handle handle = root->device->handle;
struct acpiphp_bridge *bridge;
- struct acpi_pci_root *root = acpi_pci_find_root(handle);
bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
if (bridge == NULL)
@@ -468,8 +468,9 @@ find_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
/* find hot-pluggable slots, and then find P2P bridge */
-static int add_bridge(acpi_handle handle)
+static int add_bridge(struct acpi_pci_root *root)
{
+ acpi_handle handle = root->device->handle;
acpi_status status;
unsigned long long tmp;
acpi_handle dummy_handle;
@@ -490,7 +491,7 @@ static int add_bridge(acpi_handle handle)
/* check if this bridge has ejectable slots */
if (detect_ejectable_slots(handle) > 0) {
dbg("found PCI host-bus bridge with hot-pluggable slots\n");
- add_host_bridge(handle);
+ add_host_bridge(root);
}
/* search P2P bridges under this host bridge */
@@ -591,8 +592,9 @@ cleanup_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
return AE_OK;
}
-static void remove_bridge(acpi_handle handle)
+static void remove_bridge(struct acpi_pci_root *root)
{
+ acpi_handle handle = root->device->handle;
struct acpiphp_bridge *bridge;
/* cleanup p2p bridges under this host bridge
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 4f2a762..a686098 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -139,8 +139,8 @@ void acpi_pci_irq_disable (struct pci_dev *dev);
struct acpi_pci_driver {
struct acpi_pci_driver *next;
- int (*add)(acpi_handle handle);
- void (*remove)(acpi_handle handle);
+ int (*add)(struct acpi_pci_root *root);
+ void (*remove)(struct acpi_pci_root *root);
};
int acpi_pci_register_driver(struct acpi_pci_driver *driver);
--
1.7.7
--
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