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Message-ID: <2266117.uoEfbIxIHW@vostro.rjw.lan>
Date: Sun, 16 Dec 2012 14:53:51 +0100
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Yinghai Lu <yinghai@...nel.org>,
Toshi Kani <toshi.kani@...com>,
Yijing Wang <wangyijing0307@...il.com>,
Jiang Liu <liuj97@...il.com>,
Wen Congyang <wency@...fujitsu.com>
Subject: [PATCH 5/6] ACPI: Replace ACPI device add_type field with a match_driver flag
From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
After the removal of the second argument of acpi_bus_scan() there is
no difference between the ACPI_BUS_ADD_MATCH and ACPI_BUS_ADD_START
add types, so the add_type field in struct acpi_device may be
replaced with a single flag. Do that calling the flag match_driver.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
drivers/acpi/scan.c | 21 +++++++++------------
include/acpi/acpi_bus.h | 11 ++---------
2 files changed, 11 insertions(+), 21 deletions(-)
Index: linux/drivers/acpi/scan.c
===================================================================
--- linux.orig/drivers/acpi/scan.c
+++ linux/drivers/acpi/scan.c
@@ -535,7 +535,7 @@ static int acpi_bus_match(struct device
struct acpi_device *acpi_dev = to_acpi_device(dev);
struct acpi_driver *acpi_drv = to_acpi_driver(drv);
- return acpi_dev->add_type >= ACPI_BUS_ADD_MATCH
+ return acpi_dev->flags.match_driver
&& !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
}
@@ -1451,8 +1451,7 @@ static void acpi_hot_add_bind(struct acp
static int acpi_add_single_object(struct acpi_device **child,
acpi_handle handle, int type,
- unsigned long long sta,
- enum acpi_bus_add_type add_type)
+ unsigned long long sta, bool match_driver)
{
int result;
struct acpi_device *device;
@@ -1468,7 +1467,6 @@ static int acpi_add_single_object(struct
device->device_type = type;
device->handle = handle;
device->parent = acpi_bus_get_parent(handle);
- device->add_type = add_type;
STRUCT_TO_INT(device->status) = sta;
acpi_device_get_busid(device);
@@ -1519,9 +1517,10 @@ static int acpi_add_single_object(struct
if ((result = acpi_device_set_context(device)))
goto end;
+ device->flags.match_driver = match_driver;
result = acpi_device_register(device);
- if (device->add_type >= ACPI_BUS_ADD_MATCH)
+ if (device->flags.match_driver)
acpi_hot_add_bind(device);
end:
@@ -1550,7 +1549,7 @@ static void acpi_bus_add_power_resource(
acpi_bus_get_device(handle, &device);
if (!device)
acpi_add_single_object(&device, handle, ACPI_BUS_TYPE_POWER,
- ACPI_STA_DEFAULT, ACPI_BUS_ADD_START);
+ ACPI_STA_DEFAULT, true);
}
static int acpi_bus_type_and_status(acpi_handle handle, int *type,
@@ -1621,11 +1620,11 @@ static acpi_status acpi_bus_check_add(ac
return AE_CTRL_DEPTH;
}
- acpi_add_single_object(&device, handle, type, sta, ACPI_BUS_ADD_BASIC);
+ acpi_add_single_object(&device, handle, type, sta, false);
if (!device)
return AE_CTRL_DEPTH;
- device->add_type = ACPI_BUS_ADD_START;
+ device->flags.match_driver = true;
out:
if (!*return_value)
@@ -1792,16 +1791,14 @@ static int acpi_bus_scan_fixed(void)
if ((acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON) == 0) {
result = acpi_add_single_object(&device, NULL,
ACPI_BUS_TYPE_POWER_BUTTON,
- ACPI_STA_DEFAULT,
- ACPI_BUS_ADD_START);
+ ACPI_STA_DEFAULT, true);
device_init_wakeup(&device->dev, true);
}
if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
result = acpi_add_single_object(&device, NULL,
ACPI_BUS_TYPE_SLEEP_BUTTON,
- ACPI_STA_DEFAULT,
- ACPI_BUS_ADD_START);
+ ACPI_STA_DEFAULT, true);
}
return result;
Index: linux/include/acpi/acpi_bus.h
===================================================================
--- linux.orig/include/acpi/acpi_bus.h
+++ linux/include/acpi/acpi_bus.h
@@ -63,13 +63,6 @@ acpi_get_physical_device_location(acpi_h
#define ACPI_BUS_FILE_ROOT "acpi"
extern struct proc_dir_entry *acpi_root_dir;
-enum acpi_bus_add_type {
- ACPI_BUS_ADD_BASIC = 0,
- ACPI_BUS_ADD_MATCH,
- ACPI_BUS_ADD_START,
- ACPI_BUS_ADD_TYPE_COUNT
-};
-
enum acpi_bus_removal_type {
ACPI_BUS_REMOVAL_NORMAL = 0,
ACPI_BUS_REMOVAL_EJECT,
@@ -150,7 +143,8 @@ struct acpi_device_flags {
u32 power_manageable:1;
u32 performance_manageable:1;
u32 eject_pending:1;
- u32 reserved:24;
+ u32 match_driver:1;
+ u32 reserved:23;
};
/* File System */
@@ -285,7 +279,6 @@ struct acpi_device {
struct acpi_driver *driver;
void *driver_data;
struct device dev;
- enum acpi_bus_add_type add_type; /* how to handle adding */
enum acpi_bus_removal_type removal_type; /* indicate for different removal type */
u8 physical_node_count;
struct list_head physical_node_list;
--
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