* [PATCH v2, part 1 5/9] ACPI, PCI: remove unused global list acpi_pci_roots in pci_root.c
[not found] <1368461313-4371-1-git-send-email-jiang.liu@huawei.com>
@ 2013-05-13 16:08 ` Jiang Liu
2013-05-13 23:28 ` Rafael J. Wysocki
2013-05-13 16:08 ` [PATCH v2, part 1 6/9] ACPI, pci_root: use acpi_handle_print() and pr_xxx() to print messages Jiang Liu
1 sibling, 1 reply; 8+ messages in thread
From: Jiang Liu @ 2013-05-13 16:08 UTC (permalink / raw)
To: Bjorn Helgaas, Yinghai Lu
Cc: Jiang Liu, Rafael J . Wysocki, Greg Kroah-Hartman, Gu Zheng,
Toshi Kani, Myron Stowe, Yijing Wang, Jiang Liu, linux-pci,
linux-kernel, Len Brown, linux-acpi
Now the global list acpi_pci_roots pci_root.c is useless, remove it.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Len Brown <lenb@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux-acpi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/acpi/pci_root.c | 25 +++----------------------
include/acpi/acpi_bus.h | 1 -
2 files changed, 3 insertions(+), 23 deletions(-)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index b80e06e..91ddfd6 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -65,10 +65,6 @@ static struct acpi_scan_handler pci_root_handler = {
.detach = acpi_pci_root_remove,
};
-/* Lock to protect both acpi_pci_roots lists */
-static DEFINE_MUTEX(acpi_pci_root_lock);
-static LIST_HEAD(acpi_pci_roots);
-
static DEFINE_MUTEX(osc_lock);
/**
@@ -423,7 +419,6 @@ static int acpi_pci_root_add(struct acpi_device *device,
}
}
- INIT_LIST_HEAD(&root->node);
root->device = device;
root->segment = segment & 0xFFFF;
strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
@@ -501,10 +496,6 @@ static int acpi_pci_root_add(struct acpi_device *device,
* TBD: Need PCI interface for enumeration/configuration of roots.
*/
- mutex_lock(&acpi_pci_root_lock);
- list_add_tail(&root->node, &acpi_pci_roots);
- mutex_unlock(&acpi_pci_root_lock);
-
/*
* Scan the Root Bridge
* --------------------
@@ -518,7 +509,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
"Bus %04x:%02x not present in PCI namespace\n",
root->segment, (unsigned int)root->secondary.start);
result = -ENODEV;
- goto out_del_root;
+ goto end;
}
/* ASPM setting */
@@ -538,20 +529,13 @@ static int acpi_pci_root_add(struct acpi_device *device,
if (system_state != SYSTEM_BOOTING) {
pcibios_resource_survey_bus(root->bus);
pci_assign_unassigned_bus_resources(root->bus);
- }
-
- /* need to after hot-added ioapic is registered */
- if (system_state != SYSTEM_BOOTING)
+ /* need to after hot-added ioapic is registered */
pci_enable_bridges(root->bus);
+ }
pci_bus_add_devices(root->bus);
return 1;
-out_del_root:
- mutex_lock(&acpi_pci_root_lock);
- list_del(&root->node);
- mutex_unlock(&acpi_pci_root_lock);
-
end:
kfree(root);
return result;
@@ -568,9 +552,6 @@ static void acpi_pci_root_remove(struct acpi_device *device)
pci_remove_root_bus(root->bus);
- mutex_lock(&acpi_pci_root_lock);
- list_del(&root->node);
- mutex_unlock(&acpi_pci_root_lock);
kfree(root);
}
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 22ba56e..4eb9a88 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -447,7 +447,6 @@ int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_acpi_bus_type(struct acpi_bus_type *);
struct acpi_pci_root {
- struct list_head node;
struct acpi_device * device;
struct pci_bus *bus;
u16 segment;
--
1.8.1.2
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v2, part 1 6/9] ACPI, pci_root: use acpi_handle_print() and pr_xxx() to print messages
[not found] <1368461313-4371-1-git-send-email-jiang.liu@huawei.com>
2013-05-13 16:08 ` [PATCH v2, part 1 5/9] ACPI, PCI: remove unused global list acpi_pci_roots in pci_root.c Jiang Liu
@ 2013-05-13 16:08 ` Jiang Liu
2013-05-13 23:27 ` Rafael J. Wysocki
2013-05-14 8:43 ` Gu Zheng
1 sibling, 2 replies; 8+ messages in thread
From: Jiang Liu @ 2013-05-13 16:08 UTC (permalink / raw)
To: Bjorn Helgaas, Yinghai Lu
Cc: Jiang Liu, Rafael J . Wysocki, Greg Kroah-Hartman, Gu Zheng,
Toshi Kani, Myron Stowe, Yijing Wang, Jiang Liu, linux-pci,
linux-kernel, Len Brown, linux-acpi
Use acpi_handle_print() and pr_xxx() to print messages in pci_root.c.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Len Brown <lenb@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux-acpi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/acpi/pci_root.c | 71 ++++++++++++++++++++++---------------------------
1 file changed, 32 insertions(+), 39 deletions(-)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 91ddfd6..9ced5c3 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -379,23 +379,23 @@ static int acpi_pci_root_add(struct acpi_device *device,
struct acpi_pci_root *root;
u32 flags, base_flags;
bool is_osc_granted = false;
+ acpi_handle hdl = device->handle;
root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
if (!root)
return -ENOMEM;
segment = 0;
- status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL,
- &segment);
+ status = acpi_evaluate_integer(hdl, METHOD_NAME__SEG, NULL, &segment);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- printk(KERN_ERR PREFIX "can't evaluate _SEG\n");
+ acpi_handle_err(hdl, "can't evaluate _SEG\n");
result = -ENODEV;
goto end;
}
/* Check _CRS first, then _BBN. If no _BBN, default to zero. */
root->secondary.flags = IORESOURCE_BUS;
- status = try_get_root_bridge_busnr(device->handle, &root->secondary);
+ status = try_get_root_bridge_busnr(hdl, &root->secondary);
if (ACPI_FAILURE(status)) {
/*
* We need both the start and end of the downstream bus range
@@ -404,16 +404,16 @@ static int acpi_pci_root_add(struct acpi_device *device,
* can do is assume [_BBN-0xFF] or [0-0xFF].
*/
root->secondary.end = 0xFF;
- printk(KERN_WARNING FW_BUG PREFIX
- "no secondary bus range in _CRS\n");
- status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN,
+ acpi_handle_warn(hdl,
+ FW_BUG "no secondary bus range in _CRS\n");
+ status = acpi_evaluate_integer(hdl, METHOD_NAME__BBN,
NULL, &bus);
if (ACPI_SUCCESS(status))
root->secondary.start = bus;
else if (status == AE_NOT_FOUND)
root->secondary.start = 0;
else {
- printk(KERN_ERR PREFIX "can't evaluate _BBN\n");
+ acpi_handle_err(hdl, "can't evaluate _BBN\n");
result = -ENODEV;
goto end;
}
@@ -425,11 +425,11 @@ static int acpi_pci_root_add(struct acpi_device *device,
strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
device->driver_data = root;
- printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
+ pr_info(PREFIX "%s [%s] (domain %04x %pR)\n",
acpi_device_name(device), acpi_device_bid(device),
root->segment, &root->secondary);
- root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle);
+ root->mcfg_addr = acpi_pci_root_get_mcfg_addr(hdl);
/*
* All supported architectures that use ACPI have support for
@@ -473,7 +473,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
dev_info(&device->dev,
"Requesting ACPI _OSC control (0x%02x)\n", flags);
- status = acpi_pci_osc_control_set(device->handle, &flags,
+ status = acpi_pci_osc_control_set(hdl, &flags,
OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
if (ACPI_SUCCESS(status)) {
is_osc_granted = true;
@@ -505,9 +505,9 @@ static int acpi_pci_root_add(struct acpi_device *device,
*/
root->bus = pci_acpi_scan_root(root);
if (!root->bus) {
- printk(KERN_ERR PREFIX
- "Bus %04x:%02x not present in PCI namespace\n",
- root->segment, (unsigned int)root->secondary.start);
+ acpi_handle_err(hdl,
+ "Bus %04x:%02x not present in PCI namespace\n",
+ root->segment, (unsigned int)root->secondary.start);
result = -ENODEV;
goto end;
}
@@ -517,8 +517,8 @@ static int acpi_pci_root_add(struct acpi_device *device,
if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM)
pcie_clear_aspm(root->bus);
} else {
- pr_info("ACPI _OSC control for PCIe not granted, "
- "disabling ASPM\n");
+ acpi_handle_info(hdl,
+ "ACPI _OSC control for PCIe not granted, disabling ASPM\n");
pcie_no_aspm();
}
@@ -571,12 +571,13 @@ static void handle_root_bridge_insertion(acpi_handle handle)
struct acpi_device *device;
if (!acpi_bus_get_device(handle, &device)) {
- printk(KERN_DEBUG "acpi device exists...\n");
+ acpi_handle_printk(KERN_DEBUG, handle,
+ "acpi device exists...\n");
return;
}
if (acpi_bus_scan(handle))
- printk(KERN_ERR "cannot add bridge to acpi list\n");
+ acpi_handle_err(handle, "cannot add bridge to acpi list\n");
}
static void handle_root_bridge_removal(struct acpi_device *device)
@@ -602,7 +603,6 @@ static void handle_root_bridge_removal(struct acpi_device *device)
static void _handle_hotplug_event_root(struct work_struct *work)
{
struct acpi_pci_root *root;
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER };
struct acpi_hp_work *hp_work;
acpi_handle handle;
u32 type;
@@ -613,13 +613,11 @@ static void _handle_hotplug_event_root(struct work_struct *work)
root = acpi_pci_find_root(handle);
- acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
-
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
/* bus enumerate */
- printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__,
- (char *)buffer.pointer);
+ acpi_handle_printk(KERN_DEBUG, handle,
+ "Bus check notify on %s\n", __func__);
if (!root)
handle_root_bridge_insertion(handle);
@@ -627,27 +625,26 @@ static void _handle_hotplug_event_root(struct work_struct *work)
case ACPI_NOTIFY_DEVICE_CHECK:
/* device check */
- printk(KERN_DEBUG "%s: Device check notify on %s\n", __func__,
- (char *)buffer.pointer);
+ acpi_handle_printk(KERN_DEBUG, handle,
+ "Device check notify on %s\n", __func__);
if (!root)
handle_root_bridge_insertion(handle);
break;
case ACPI_NOTIFY_EJECT_REQUEST:
/* request device eject */
- printk(KERN_DEBUG "%s: Device eject notify on %s\n", __func__,
- (char *)buffer.pointer);
+ acpi_handle_printk(KERN_DEBUG, handle,
+ "Device eject notify on %s\n", __func__);
if (root)
handle_root_bridge_removal(root->device);
break;
default:
- printk(KERN_WARNING "notify_handler: unknown event type 0x%x for %s\n",
- type, (char *)buffer.pointer);
+ acpi_handle_warn(handle,
+ "notify_handler: unknown event type 0x%xn", type);
break;
}
kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
- kfree(buffer.pointer);
}
static void handle_hotplug_event_root(acpi_handle handle, u32 type,
@@ -661,9 +658,6 @@ static acpi_status __init
find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
{
acpi_status status;
- char objname[64];
- struct acpi_buffer buffer = { .length = sizeof(objname),
- .pointer = objname };
int *count = (int *)context;
if (!acpi_is_root_bridge(handle))
@@ -671,16 +665,15 @@ find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
(*count)++;
- acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
-
status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
handle_hotplug_event_root, NULL);
if (ACPI_FAILURE(status))
- printk(KERN_DEBUG "acpi root: %s notify handler is not installed, exit status: %u\n",
- objname, (unsigned int)status);
+ acpi_handle_printk(KERN_DEBUG, handle,
+ "notify handler is not installed, exit status: %u\n",
+ (unsigned int)status);
else
- printk(KERN_DEBUG "acpi root: %s notify handler is installed\n",
- objname);
+ acpi_handle_printk(KERN_DEBUG, handle,
+ "notify handler is installed\n");
return AE_OK;
}
--
1.8.1.2
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v2, part 1 6/9] ACPI, pci_root: use acpi_handle_print() and pr_xxx() to print messages
2013-05-13 16:08 ` [PATCH v2, part 1 6/9] ACPI, pci_root: use acpi_handle_print() and pr_xxx() to print messages Jiang Liu
@ 2013-05-13 23:27 ` Rafael J. Wysocki
2013-05-14 12:46 ` Liu Jiang
2013-05-14 8:43 ` Gu Zheng
1 sibling, 1 reply; 8+ messages in thread
From: Rafael J. Wysocki @ 2013-05-13 23:27 UTC (permalink / raw)
To: Jiang Liu
Cc: Bjorn Helgaas, Yinghai Lu, Jiang Liu, Greg Kroah-Hartman,
Gu Zheng, Toshi Kani, Myron Stowe, Yijing Wang, linux-pci,
linux-kernel, Len Brown, linux-acpi
On Tuesday, May 14, 2013 12:08:30 AM Jiang Liu wrote:
> Use acpi_handle_print() and pr_xxx() to print messages in pci_root.c.
>
> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
> Cc: Len Brown <lenb@kernel.org>
> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
> Cc: linux-acpi@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
> drivers/acpi/pci_root.c | 71 ++++++++++++++++++++++---------------------------
> 1 file changed, 32 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
> index 91ddfd6..9ced5c3 100644
> --- a/drivers/acpi/pci_root.c
> +++ b/drivers/acpi/pci_root.c
> @@ -379,23 +379,23 @@ static int acpi_pci_root_add(struct acpi_device *device,
> struct acpi_pci_root *root;
> u32 flags, base_flags;
> bool is_osc_granted = false;
> + acpi_handle hdl = device->handle;
The usual way is to call it 'handle'. Any reason why not to do it here too?
> root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
> if (!root)
> return -ENOMEM;
>
> segment = 0;
> - status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL,
> - &segment);
> + status = acpi_evaluate_integer(hdl, METHOD_NAME__SEG, NULL, &segment);
> if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
> - printk(KERN_ERR PREFIX "can't evaluate _SEG\n");
> + acpi_handle_err(hdl, "can't evaluate _SEG\n");
> result = -ENODEV;
> goto end;
> }
>
> /* Check _CRS first, then _BBN. If no _BBN, default to zero. */
> root->secondary.flags = IORESOURCE_BUS;
> - status = try_get_root_bridge_busnr(device->handle, &root->secondary);
> + status = try_get_root_bridge_busnr(hdl, &root->secondary);
> if (ACPI_FAILURE(status)) {
> /*
> * We need both the start and end of the downstream bus range
> @@ -404,16 +404,16 @@ static int acpi_pci_root_add(struct acpi_device *device,
> * can do is assume [_BBN-0xFF] or [0-0xFF].
> */
> root->secondary.end = 0xFF;
> - printk(KERN_WARNING FW_BUG PREFIX
> - "no secondary bus range in _CRS\n");
> - status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN,
> + acpi_handle_warn(hdl,
> + FW_BUG "no secondary bus range in _CRS\n");
> + status = acpi_evaluate_integer(hdl, METHOD_NAME__BBN,
> NULL, &bus);
> if (ACPI_SUCCESS(status))
> root->secondary.start = bus;
> else if (status == AE_NOT_FOUND)
> root->secondary.start = 0;
> else {
> - printk(KERN_ERR PREFIX "can't evaluate _BBN\n");
> + acpi_handle_err(hdl, "can't evaluate _BBN\n");
> result = -ENODEV;
> goto end;
> }
> @@ -425,11 +425,11 @@ static int acpi_pci_root_add(struct acpi_device *device,
> strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
> device->driver_data = root;
>
> - printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
> + pr_info(PREFIX "%s [%s] (domain %04x %pR)\n",
> acpi_device_name(device), acpi_device_bid(device),
> root->segment, &root->secondary);
>
> - root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle);
> + root->mcfg_addr = acpi_pci_root_get_mcfg_addr(hdl);
>
> /*
> * All supported architectures that use ACPI have support for
> @@ -473,7 +473,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
> dev_info(&device->dev,
> "Requesting ACPI _OSC control (0x%02x)\n", flags);
>
> - status = acpi_pci_osc_control_set(device->handle, &flags,
> + status = acpi_pci_osc_control_set(hdl, &flags,
> OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
> if (ACPI_SUCCESS(status)) {
> is_osc_granted = true;
> @@ -505,9 +505,9 @@ static int acpi_pci_root_add(struct acpi_device *device,
> */
> root->bus = pci_acpi_scan_root(root);
> if (!root->bus) {
> - printk(KERN_ERR PREFIX
> - "Bus %04x:%02x not present in PCI namespace\n",
> - root->segment, (unsigned int)root->secondary.start);
> + acpi_handle_err(hdl,
> + "Bus %04x:%02x not present in PCI namespace\n",
> + root->segment, (unsigned int)root->secondary.start);
> result = -ENODEV;
> goto end;
> }
> @@ -517,8 +517,8 @@ static int acpi_pci_root_add(struct acpi_device *device,
> if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM)
> pcie_clear_aspm(root->bus);
> } else {
> - pr_info("ACPI _OSC control for PCIe not granted, "
> - "disabling ASPM\n");
> + acpi_handle_info(hdl,
> + "ACPI _OSC control for PCIe not granted, disabling ASPM\n");
> pcie_no_aspm();
> }
>
> @@ -571,12 +571,13 @@ static void handle_root_bridge_insertion(acpi_handle handle)
> struct acpi_device *device;
>
> if (!acpi_bus_get_device(handle, &device)) {
> - printk(KERN_DEBUG "acpi device exists...\n");
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "acpi device exists...\n");
Do we have acpi_handle_dbg()? If so, why don't you use it here? (And below.)
If not, why don't you add it and use it here (and below)?
> return;
> }
>
> if (acpi_bus_scan(handle))
> - printk(KERN_ERR "cannot add bridge to acpi list\n");
> + acpi_handle_err(handle, "cannot add bridge to acpi list\n");
> }
>
> static void handle_root_bridge_removal(struct acpi_device *device)
> @@ -602,7 +603,6 @@ static void handle_root_bridge_removal(struct acpi_device *device)
> static void _handle_hotplug_event_root(struct work_struct *work)
> {
> struct acpi_pci_root *root;
> - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER };
> struct acpi_hp_work *hp_work;
> acpi_handle handle;
> u32 type;
> @@ -613,13 +613,11 @@ static void _handle_hotplug_event_root(struct work_struct *work)
>
> root = acpi_pci_find_root(handle);
>
> - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
> -
> switch (type) {
> case ACPI_NOTIFY_BUS_CHECK:
> /* bus enumerate */
> - printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__,
> - (char *)buffer.pointer);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "Bus check notify on %s\n", __func__);
> if (!root)
> handle_root_bridge_insertion(handle);
>
> @@ -627,27 +625,26 @@ static void _handle_hotplug_event_root(struct work_struct *work)
>
> case ACPI_NOTIFY_DEVICE_CHECK:
> /* device check */
> - printk(KERN_DEBUG "%s: Device check notify on %s\n", __func__,
> - (char *)buffer.pointer);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "Device check notify on %s\n", __func__);
> if (!root)
> handle_root_bridge_insertion(handle);
> break;
>
> case ACPI_NOTIFY_EJECT_REQUEST:
> /* request device eject */
> - printk(KERN_DEBUG "%s: Device eject notify on %s\n", __func__,
> - (char *)buffer.pointer);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "Device eject notify on %s\n", __func__);
> if (root)
> handle_root_bridge_removal(root->device);
> break;
> default:
> - printk(KERN_WARNING "notify_handler: unknown event type 0x%x for %s\n",
> - type, (char *)buffer.pointer);
> + acpi_handle_warn(handle,
> + "notify_handler: unknown event type 0x%xn", type);
> break;
> }
>
> kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
> - kfree(buffer.pointer);
> }
>
> static void handle_hotplug_event_root(acpi_handle handle, u32 type,
> @@ -661,9 +658,6 @@ static acpi_status __init
> find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
> {
> acpi_status status;
> - char objname[64];
> - struct acpi_buffer buffer = { .length = sizeof(objname),
> - .pointer = objname };
> int *count = (int *)context;
>
> if (!acpi_is_root_bridge(handle))
> @@ -671,16 +665,15 @@ find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
>
> (*count)++;
>
> - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
> -
> status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
> handle_hotplug_event_root, NULL);
> if (ACPI_FAILURE(status))
> - printk(KERN_DEBUG "acpi root: %s notify handler is not installed, exit status: %u\n",
> - objname, (unsigned int)status);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "notify handler is not installed, exit status: %u\n",
> + (unsigned int)status);
> else
> - printk(KERN_DEBUG "acpi root: %s notify handler is installed\n",
> - objname);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "notify handler is installed\n");
>
> return AE_OK;
> }
Thanks,
Rafael
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2, part 1 5/9] ACPI, PCI: remove unused global list acpi_pci_roots in pci_root.c
2013-05-13 16:08 ` [PATCH v2, part 1 5/9] ACPI, PCI: remove unused global list acpi_pci_roots in pci_root.c Jiang Liu
@ 2013-05-13 23:28 ` Rafael J. Wysocki
2013-05-14 12:41 ` Liu Jiang
0 siblings, 1 reply; 8+ messages in thread
From: Rafael J. Wysocki @ 2013-05-13 23:28 UTC (permalink / raw)
To: Jiang Liu
Cc: Bjorn Helgaas, Yinghai Lu, Jiang Liu, Greg Kroah-Hartman,
Gu Zheng, Toshi Kani, Myron Stowe, Yijing Wang, linux-pci,
linux-kernel, Len Brown, linux-acpi
On Tuesday, May 14, 2013 12:08:29 AM Jiang Liu wrote:
> Now the global list acpi_pci_roots pci_root.c is useless, remove it.
Well, are patches [1-4/9] needed for that or does it apply without them?
Rafael
> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
> Cc: Len Brown <lenb@kernel.org>
> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
> Cc: linux-acpi@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
> drivers/acpi/pci_root.c | 25 +++----------------------
> include/acpi/acpi_bus.h | 1 -
> 2 files changed, 3 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
> index b80e06e..91ddfd6 100644
> --- a/drivers/acpi/pci_root.c
> +++ b/drivers/acpi/pci_root.c
> @@ -65,10 +65,6 @@ static struct acpi_scan_handler pci_root_handler = {
> .detach = acpi_pci_root_remove,
> };
>
> -/* Lock to protect both acpi_pci_roots lists */
> -static DEFINE_MUTEX(acpi_pci_root_lock);
> -static LIST_HEAD(acpi_pci_roots);
> -
> static DEFINE_MUTEX(osc_lock);
>
> /**
> @@ -423,7 +419,6 @@ static int acpi_pci_root_add(struct acpi_device *device,
> }
> }
>
> - INIT_LIST_HEAD(&root->node);
> root->device = device;
> root->segment = segment & 0xFFFF;
> strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
> @@ -501,10 +496,6 @@ static int acpi_pci_root_add(struct acpi_device *device,
> * TBD: Need PCI interface for enumeration/configuration of roots.
> */
>
> - mutex_lock(&acpi_pci_root_lock);
> - list_add_tail(&root->node, &acpi_pci_roots);
> - mutex_unlock(&acpi_pci_root_lock);
> -
> /*
> * Scan the Root Bridge
> * --------------------
> @@ -518,7 +509,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
> "Bus %04x:%02x not present in PCI namespace\n",
> root->segment, (unsigned int)root->secondary.start);
> result = -ENODEV;
> - goto out_del_root;
> + goto end;
> }
>
> /* ASPM setting */
> @@ -538,20 +529,13 @@ static int acpi_pci_root_add(struct acpi_device *device,
> if (system_state != SYSTEM_BOOTING) {
> pcibios_resource_survey_bus(root->bus);
> pci_assign_unassigned_bus_resources(root->bus);
> - }
> -
> - /* need to after hot-added ioapic is registered */
> - if (system_state != SYSTEM_BOOTING)
> + /* need to after hot-added ioapic is registered */
> pci_enable_bridges(root->bus);
> + }
>
> pci_bus_add_devices(root->bus);
> return 1;
>
> -out_del_root:
> - mutex_lock(&acpi_pci_root_lock);
> - list_del(&root->node);
> - mutex_unlock(&acpi_pci_root_lock);
> -
> end:
> kfree(root);
> return result;
> @@ -568,9 +552,6 @@ static void acpi_pci_root_remove(struct acpi_device *device)
>
> pci_remove_root_bus(root->bus);
>
> - mutex_lock(&acpi_pci_root_lock);
> - list_del(&root->node);
> - mutex_unlock(&acpi_pci_root_lock);
> kfree(root);
> }
>
> diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
> index 22ba56e..4eb9a88 100644
> --- a/include/acpi/acpi_bus.h
> +++ b/include/acpi/acpi_bus.h
> @@ -447,7 +447,6 @@ int register_acpi_bus_type(struct acpi_bus_type *);
> int unregister_acpi_bus_type(struct acpi_bus_type *);
>
> struct acpi_pci_root {
> - struct list_head node;
> struct acpi_device * device;
> struct pci_bus *bus;
> u16 segment;
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2, part 1 6/9] ACPI, pci_root: use acpi_handle_print() and pr_xxx() to print messages
2013-05-13 16:08 ` [PATCH v2, part 1 6/9] ACPI, pci_root: use acpi_handle_print() and pr_xxx() to print messages Jiang Liu
2013-05-13 23:27 ` Rafael J. Wysocki
@ 2013-05-14 8:43 ` Gu Zheng
1 sibling, 0 replies; 8+ messages in thread
From: Gu Zheng @ 2013-05-14 8:43 UTC (permalink / raw)
To: Jiang Liu
Cc: Bjorn Helgaas, Yinghai Lu, Jiang Liu, Rafael J . Wysocki,
Greg Kroah-Hartman, Toshi Kani, Myron Stowe, Yijing Wang,
linux-pci, linux-kernel, Len Brown, linux-acpi
On 05/14/2013 12:08 AM, Jiang Liu wrote:
> Use acpi_handle_print() and pr_xxx() to print messages in pci_root.c.
>
> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
> Cc: Len Brown <lenb@kernel.org>
> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
> Cc: linux-acpi@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
> drivers/acpi/pci_root.c | 71 ++++++++++++++++++++++---------------------------
> 1 file changed, 32 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
> index 91ddfd6..9ced5c3 100644
> --- a/drivers/acpi/pci_root.c
> +++ b/drivers/acpi/pci_root.c
> @@ -379,23 +379,23 @@ static int acpi_pci_root_add(struct acpi_device *device,
> struct acpi_pci_root *root;
> u32 flags, base_flags;
> bool is_osc_granted = false;
> + acpi_handle hdl = device->handle;
>
> root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
> if (!root)
> return -ENOMEM;
>
> segment = 0;
> - status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL,
> - &segment);
> + status = acpi_evaluate_integer(hdl, METHOD_NAME__SEG, NULL, &segment);
> if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
> - printk(KERN_ERR PREFIX "can't evaluate _SEG\n");
> + acpi_handle_err(hdl, "can't evaluate _SEG\n");
> result = -ENODEV;
> goto end;
> }
>
> /* Check _CRS first, then _BBN. If no _BBN, default to zero. */
> root->secondary.flags = IORESOURCE_BUS;
> - status = try_get_root_bridge_busnr(device->handle, &root->secondary);
> + status = try_get_root_bridge_busnr(hdl, &root->secondary);
> if (ACPI_FAILURE(status)) {
> /*
> * We need both the start and end of the downstream bus range
> @@ -404,16 +404,16 @@ static int acpi_pci_root_add(struct acpi_device *device,
> * can do is assume [_BBN-0xFF] or [0-0xFF].
> */
> root->secondary.end = 0xFF;
> - printk(KERN_WARNING FW_BUG PREFIX
> - "no secondary bus range in _CRS\n");
> - status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN,
> + acpi_handle_warn(hdl,
> + FW_BUG "no secondary bus range in _CRS\n");
> + status = acpi_evaluate_integer(hdl, METHOD_NAME__BBN,
> NULL, &bus);
> if (ACPI_SUCCESS(status))
> root->secondary.start = bus;
> else if (status == AE_NOT_FOUND)
> root->secondary.start = 0;
> else {
> - printk(KERN_ERR PREFIX "can't evaluate _BBN\n");
> + acpi_handle_err(hdl, "can't evaluate _BBN\n");
> result = -ENODEV;
> goto end;
> }
> @@ -425,11 +425,11 @@ static int acpi_pci_root_add(struct acpi_device *device,
> strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
> device->driver_data = root;
>
> - printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
> + pr_info(PREFIX "%s [%s] (domain %04x %pR)\n",
> acpi_device_name(device), acpi_device_bid(device),
> root->segment, &root->secondary);
>
> - root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle);
> + root->mcfg_addr = acpi_pci_root_get_mcfg_addr(hdl);
>
> /*
> * All supported architectures that use ACPI have support for
> @@ -473,7 +473,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
> dev_info(&device->dev,
> "Requesting ACPI _OSC control (0x%02x)\n", flags);
>
> - status = acpi_pci_osc_control_set(device->handle, &flags,
> + status = acpi_pci_osc_control_set(hdl, &flags,
> OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
> if (ACPI_SUCCESS(status)) {
> is_osc_granted = true;
> @@ -505,9 +505,9 @@ static int acpi_pci_root_add(struct acpi_device *device,
> */
> root->bus = pci_acpi_scan_root(root);
> if (!root->bus) {
> - printk(KERN_ERR PREFIX
> - "Bus %04x:%02x not present in PCI namespace\n",
> - root->segment, (unsigned int)root->secondary.start);
> + acpi_handle_err(hdl,
> + "Bus %04x:%02x not present in PCI namespace\n",
> + root->segment, (unsigned int)root->secondary.start);
> result = -ENODEV;
> goto end;
> }
> @@ -517,8 +517,8 @@ static int acpi_pci_root_add(struct acpi_device *device,
> if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM)
> pcie_clear_aspm(root->bus);
> } else {
> - pr_info("ACPI _OSC control for PCIe not granted, "
> - "disabling ASPM\n");
> + acpi_handle_info(hdl,
> + "ACPI _OSC control for PCIe not granted, disabling ASPM\n");
> pcie_no_aspm();
> }
>
> @@ -571,12 +571,13 @@ static void handle_root_bridge_insertion(acpi_handle handle)
> struct acpi_device *device;
>
> if (!acpi_bus_get_device(handle, &device)) {
> - printk(KERN_DEBUG "acpi device exists...\n");
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "acpi device exists...\n");
> return;
> }
>
> if (acpi_bus_scan(handle))
> - printk(KERN_ERR "cannot add bridge to acpi list\n");
> + acpi_handle_err(handle, "cannot add bridge to acpi list\n");
> }
>
> static void handle_root_bridge_removal(struct acpi_device *device)
> @@ -602,7 +603,6 @@ static void handle_root_bridge_removal(struct acpi_device *device)
> static void _handle_hotplug_event_root(struct work_struct *work)
> {
> struct acpi_pci_root *root;
> - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER };
> struct acpi_hp_work *hp_work;
> acpi_handle handle;
> u32 type;
> @@ -613,13 +613,11 @@ static void _handle_hotplug_event_root(struct work_struct *work)
>
> root = acpi_pci_find_root(handle);
>
> - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
> -
> switch (type) {
> case ACPI_NOTIFY_BUS_CHECK:
> /* bus enumerate */
> - printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__,
> - (char *)buffer.pointer);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "Bus check notify on %s\n", __func__);
> if (!root)
> handle_root_bridge_insertion(handle);
>
> @@ -627,27 +625,26 @@ static void _handle_hotplug_event_root(struct work_struct *work)
>
> case ACPI_NOTIFY_DEVICE_CHECK:
> /* device check */
> - printk(KERN_DEBUG "%s: Device check notify on %s\n", __func__,
> - (char *)buffer.pointer);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "Device check notify on %s\n", __func__);
> if (!root)
> handle_root_bridge_insertion(handle);
> break;
>
> case ACPI_NOTIFY_EJECT_REQUEST:
> /* request device eject */
> - printk(KERN_DEBUG "%s: Device eject notify on %s\n", __func__,
> - (char *)buffer.pointer);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "Device eject notify on %s\n", __func__);
> if (root)
> handle_root_bridge_removal(root->device);
> break;
> default:
> - printk(KERN_WARNING "notify_handler: unknown event type 0x%x for %s\n",
> - type, (char *)buffer.pointer);
> + acpi_handle_warn(handle,
> + "notify_handler: unknown event type 0x%xn", type);
Here may be "0x%x\n".
A better way I think is that we can change the format string of printk in acpi_handle_printk()
from "%sACPI: %s: %pV" to "%sACPI: %s: %pV \n", so that there is no need to append the '\n' in the
format string when we call acpi_handle_printk().
Thanks,
Gu
> break;
> }
>
> kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
> - kfree(buffer.pointer);
> }
>
> static void handle_hotplug_event_root(acpi_handle handle, u32 type,
> @@ -661,9 +658,6 @@ static acpi_status __init
> find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
> {
> acpi_status status;
> - char objname[64];
> - struct acpi_buffer buffer = { .length = sizeof(objname),
> - .pointer = objname };
> int *count = (int *)context;
>
> if (!acpi_is_root_bridge(handle))
> @@ -671,16 +665,15 @@ find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
>
> (*count)++;
>
> - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
> -
> status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
> handle_hotplug_event_root, NULL);
> if (ACPI_FAILURE(status))
> - printk(KERN_DEBUG "acpi root: %s notify handler is not installed, exit status: %u\n",
> - objname, (unsigned int)status);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "notify handler is not installed, exit status: %u\n",
> + (unsigned int)status);
> else
> - printk(KERN_DEBUG "acpi root: %s notify handler is installed\n",
> - objname);
> + acpi_handle_printk(KERN_DEBUG, handle,
> + "notify handler is installed\n");
>
> return AE_OK;
> }
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2, part 1 5/9] ACPI, PCI: remove unused global list acpi_pci_roots in pci_root.c
2013-05-13 23:28 ` Rafael J. Wysocki
@ 2013-05-14 12:41 ` Liu Jiang
2013-05-14 13:01 ` Rafael J. Wysocki
0 siblings, 1 reply; 8+ messages in thread
From: Liu Jiang @ 2013-05-14 12:41 UTC (permalink / raw)
To: Rafael J. Wysocki
Cc: Bjorn Helgaas, Yinghai Lu, Jiang Liu, Greg Kroah-Hartman,
Gu Zheng, Toshi Kani, Myron Stowe, Yijing Wang, linux-pci,
linux-kernel, Len Brown, linux-acpi
On Tue 14 May 2013 07:28:45 AM CST, Rafael J. Wysocki wrote:
> On Tuesday, May 14, 2013 12:08:29 AM Jiang Liu wrote:
>> Now the global list acpi_pci_roots pci_root.c is useless, remove it.
>
> Well, are patches [1-4/9] needed for that or does it apply without them?
Hi Rafael,
This two patches have no dependency on others.
Thanks!
>
> Rafael
>
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2, part 1 6/9] ACPI, pci_root: use acpi_handle_print() and pr_xxx() to print messages
2013-05-13 23:27 ` Rafael J. Wysocki
@ 2013-05-14 12:46 ` Liu Jiang
0 siblings, 0 replies; 8+ messages in thread
From: Liu Jiang @ 2013-05-14 12:46 UTC (permalink / raw)
To: Rafael J. Wysocki
Cc: Bjorn Helgaas, Yinghai Lu, Jiang Liu, Greg Kroah-Hartman,
Gu Zheng, Toshi Kani, Myron Stowe, Yijing Wang, linux-pci,
linux-kernel, Len Brown, linux-acpi
On 05/14/2013 07:27 AM, Rafael J. Wysocki wrote:
> On Tuesday, May 14, 2013 12:08:30 AM Jiang Liu wrote:
>> Use acpi_handle_print() and pr_xxx() to print messages in pci_root.c.
>>
>> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
>> Cc: Len Brown <lenb@kernel.org>
>> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
>> Cc: linux-acpi@vger.kernel.org
>> Cc: linux-kernel@vger.kernel.org
>> ---
>> drivers/acpi/pci_root.c | 71 ++++++++++++++++++++++---------------------------
>> 1 file changed, 32 insertions(+), 39 deletions(-)
>>
>> diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
>> index 91ddfd6..9ced5c3 100644
>> --- a/drivers/acpi/pci_root.c
>> +++ b/drivers/acpi/pci_root.c
>> @@ -379,23 +379,23 @@ static int acpi_pci_root_add(struct acpi_device *device,
>> struct acpi_pci_root *root;
>> u32 flags, base_flags;
>> bool is_osc_granted = false;
>> + acpi_handle hdl = device->handle;
> The usual way is to call it 'handle'. Any reason why not to do it here
Hi Rafael,
Just to avoid splitting some code into two lines, I could to use
"handle"
if preferred.
>> root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
>> if (!root)
>> return -ENOMEM;
>>
>> segment = 0;
>> - status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL,
>> - &segment);
>> + status = acpi_evaluate_integer(hdl, METHOD_NAME__SEG, NULL, &segment);
>> if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
>> - printk(KERN_ERR PREFIX "can't evaluate _SEG\n");
>> + acpi_handle_err(hdl, "can't evaluate _SEG\n");
>> result = -ENODEV;
>> goto end;
>> }
>>
>> /* Check _CRS first, then _BBN. If no _BBN, default to zero. */
>> root->secondary.flags = IORESOURCE_BUS;
>> - status = try_get_root_bridge_busnr(device->handle, &root->secondary);
>> + status = try_get_root_bridge_busnr(hdl, &root->secondary);
>> if (ACPI_FAILURE(status)) {
>> /*
>> * We need both the start and end of the downstream bus range
>> @@ -404,16 +404,16 @@ static int acpi_pci_root_add(struct acpi_device *device,
>> * can do is assume [_BBN-0xFF] or [0-0xFF].
>> */
>> root->secondary.end = 0xFF;
>> - printk(KERN_WARNING FW_BUG PREFIX
>> - "no secondary bus range in _CRS\n");
>> - status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN,
>> + acpi_handle_warn(hdl,
>> + FW_BUG "no secondary bus range in _CRS\n");
>> + status = acpi_evaluate_integer(hdl, METHOD_NAME__BBN,
>> NULL, &bus);
>> if (ACPI_SUCCESS(status))
>> root->secondary.start = bus;
>> else if (status == AE_NOT_FOUND)
>> root->secondary.start = 0;
>> else {
>> - printk(KERN_ERR PREFIX "can't evaluate _BBN\n");
>> + acpi_handle_err(hdl, "can't evaluate _BBN\n");
>> result = -ENODEV;
>> goto end;
>> }
>> @@ -425,11 +425,11 @@ static int acpi_pci_root_add(struct acpi_device *device,
>> strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
>> device->driver_data = root;
>>
>> - printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
>> + pr_info(PREFIX "%s [%s] (domain %04x %pR)\n",
>> acpi_device_name(device), acpi_device_bid(device),
>> root->segment, &root->secondary);
>>
>> - root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle);
>> + root->mcfg_addr = acpi_pci_root_get_mcfg_addr(hdl);
>>
>> /*
>> * All supported architectures that use ACPI have support for
>> @@ -473,7 +473,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
>> dev_info(&device->dev,
>> "Requesting ACPI _OSC control (0x%02x)\n", flags);
>>
>> - status = acpi_pci_osc_control_set(device->handle, &flags,
>> + status = acpi_pci_osc_control_set(hdl, &flags,
>> OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
>> if (ACPI_SUCCESS(status)) {
>> is_osc_granted = true;
>> @@ -505,9 +505,9 @@ static int acpi_pci_root_add(struct acpi_device *device,
>> */
>> root->bus = pci_acpi_scan_root(root);
>> if (!root->bus) {
>> - printk(KERN_ERR PREFIX
>> - "Bus %04x:%02x not present in PCI namespace\n",
>> - root->segment, (unsigned int)root->secondary.start);
>> + acpi_handle_err(hdl,
>> + "Bus %04x:%02x not present in PCI namespace\n",
>> + root->segment, (unsigned int)root->secondary.start);
>> result = -ENODEV;
>> goto end;
>> }
>> @@ -517,8 +517,8 @@ static int acpi_pci_root_add(struct acpi_device *device,
>> if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM)
>> pcie_clear_aspm(root->bus);
>> } else {
>> - pr_info("ACPI _OSC control for PCIe not granted, "
>> - "disabling ASPM\n");
>> + acpi_handle_info(hdl,
>> + "ACPI _OSC control for PCIe not granted, disabling ASPM\n");
>> pcie_no_aspm();
>> }
>>
>> @@ -571,12 +571,13 @@ static void handle_root_bridge_insertion(acpi_handle handle)
>> struct acpi_device *device;
>>
>> if (!acpi_bus_get_device(handle, &device)) {
>> - printk(KERN_DEBUG "acpi device exists...\n");
>> + acpi_handle_printk(KERN_DEBUG, handle,
>> + "acpi device exists...\n");
> Do we have acpi_handle_dbg()? If so, why don't you use it here? (And below.)
> If not, why don't you add it and use it here (and below)?
acpi_handle_dbg() only generates message if CONFIG_DEBUG is enabled,
so use pci_handle_printk(KERN_DEBUG, xxx) to keep original behavior.
Thanks,
Gerry
>
>> return;
>> }
>>
>> if (acpi_bus_scan(handle))
>> - printk(KERN_ERR "cannot add bridge to acpi list\n");
>> + acpi_handle_err(handle, "cannot add bridge to acpi list\n");
>> }
>>
>> static void handle_root_bridge_removal(struct acpi_device *device)
>> @@ -602,7 +603,6 @@ static void handle_root_bridge_removal(struct acpi_device *device)
>> static void _handle_hotplug_event_root(struct work_struct *work)
>> {
>> struct acpi_pci_root *root;
>> - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER };
>> struct acpi_hp_work *hp_work;
>> acpi_handle handle;
>> u32 type;
>> @@ -613,13 +613,11 @@ static void _handle_hotplug_event_root(struct work_struct *work)
>>
>> root = acpi_pci_find_root(handle);
>>
>> - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
>> -
>> switch (type) {
>> case ACPI_NOTIFY_BUS_CHECK:
>> /* bus enumerate */
>> - printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__,
>> - (char *)buffer.pointer);
>> + acpi_handle_printk(KERN_DEBUG, handle,
>> + "Bus check notify on %s\n", __func__);
>> if (!root)
>> handle_root_bridge_insertion(handle);
>>
>> @@ -627,27 +625,26 @@ static void _handle_hotplug_event_root(struct work_struct *work)
>>
>> case ACPI_NOTIFY_DEVICE_CHECK:
>> /* device check */
>> - printk(KERN_DEBUG "%s: Device check notify on %s\n", __func__,
>> - (char *)buffer.pointer);
>> + acpi_handle_printk(KERN_DEBUG, handle,
>> + "Device check notify on %s\n", __func__);
>> if (!root)
>> handle_root_bridge_insertion(handle);
>> break;
>>
>> case ACPI_NOTIFY_EJECT_REQUEST:
>> /* request device eject */
>> - printk(KERN_DEBUG "%s: Device eject notify on %s\n", __func__,
>> - (char *)buffer.pointer);
>> + acpi_handle_printk(KERN_DEBUG, handle,
>> + "Device eject notify on %s\n", __func__);
>> if (root)
>> handle_root_bridge_removal(root->device);
>> break;
>> default:
>> - printk(KERN_WARNING "notify_handler: unknown event type 0x%x for %s\n",
>> - type, (char *)buffer.pointer);
>> + acpi_handle_warn(handle,
>> + "notify_handler: unknown event type 0x%xn", type);
>> break;
>> }
>>
>> kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
>> - kfree(buffer.pointer);
>> }
>>
>> static void handle_hotplug_event_root(acpi_handle handle, u32 type,
>> @@ -661,9 +658,6 @@ static acpi_status __init
>> find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
>> {
>> acpi_status status;
>> - char objname[64];
>> - struct acpi_buffer buffer = { .length = sizeof(objname),
>> - .pointer = objname };
>> int *count = (int *)context;
>>
>> if (!acpi_is_root_bridge(handle))
>> @@ -671,16 +665,15 @@ find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
>>
>> (*count)++;
>>
>> - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
>> -
>> status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
>> handle_hotplug_event_root, NULL);
>> if (ACPI_FAILURE(status))
>> - printk(KERN_DEBUG "acpi root: %s notify handler is not installed, exit status: %u\n",
>> - objname, (unsigned int)status);
>> + acpi_handle_printk(KERN_DEBUG, handle,
>> + "notify handler is not installed, exit status: %u\n",
>> + (unsigned int)status);
>> else
>> - printk(KERN_DEBUG "acpi root: %s notify handler is installed\n",
>> - objname);
>> + acpi_handle_printk(KERN_DEBUG, handle,
>> + "notify handler is installed\n");
>>
>> return AE_OK;
>> }
> Thanks,
> Rafael
>
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2, part 1 5/9] ACPI, PCI: remove unused global list acpi_pci_roots in pci_root.c
2013-05-14 12:41 ` Liu Jiang
@ 2013-05-14 13:01 ` Rafael J. Wysocki
0 siblings, 0 replies; 8+ messages in thread
From: Rafael J. Wysocki @ 2013-05-14 13:01 UTC (permalink / raw)
To: Liu Jiang
Cc: Bjorn Helgaas, Yinghai Lu, Jiang Liu, Greg Kroah-Hartman,
Gu Zheng, Toshi Kani, Myron Stowe, Yijing Wang, linux-pci,
linux-kernel, Len Brown, linux-acpi
On Tuesday, May 14, 2013 08:41:56 PM Liu Jiang wrote:
> On Tue 14 May 2013 07:28:45 AM CST, Rafael J. Wysocki wrote:
> > On Tuesday, May 14, 2013 12:08:29 AM Jiang Liu wrote:
> >> Now the global list acpi_pci_roots pci_root.c is useless, remove it.
> >
> > Well, are patches [1-4/9] needed for that or does it apply without them?
> Hi Rafael,
> This two patches have no dependency on others.
Can you please submit them separately, then?
Rafael
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2013-05-14 12:53 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
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2013-05-13 16:08 ` [PATCH v2, part 1 5/9] ACPI, PCI: remove unused global list acpi_pci_roots in pci_root.c Jiang Liu
2013-05-13 23:28 ` Rafael J. Wysocki
2013-05-14 12:41 ` Liu Jiang
2013-05-14 13:01 ` Rafael J. Wysocki
2013-05-13 16:08 ` [PATCH v2, part 1 6/9] ACPI, pci_root: use acpi_handle_print() and pr_xxx() to print messages Jiang Liu
2013-05-13 23:27 ` Rafael J. Wysocki
2013-05-14 12:46 ` Liu Jiang
2013-05-14 8:43 ` Gu Zheng
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