system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-07-22 03:01:14 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ACPI: bus: Make container_of() no-op where it makes sense

Browse source 
Move list head node to be the first member in a few data structures
in order to make container_of() no-op at compile time. On x86_64 with
a custom (default + a few dozens of drivers enabled) configuration:

  add/remove: 0/0 grow/shrink: 5/12 up/down: 21/-124 (-103)
  ...
  Total: Before=39924675, After=39924572, chg -0.00%

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Andy Shevchenko 2024-03-25 14:32:57 +02:00 committed by Rafael J. Wysocki
parent 39cd87c4eb
commit 32666d9cb3
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
include/acpi/acpi_bus.h
View file

@ -124,8 +124,8 @@ static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
}
struct acpi_scan_handler {
const struct acpi_device_id *ids;
struct list_head list_node;
const struct acpi_device_id *ids;
bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
void (*detach)(struct acpi_device *dev);
@ -269,6 +269,7 @@ struct acpi_device_power_flags {
};
struct acpi_device_power_state {
struct list_head resources; /* Power resources referenced */
struct {
u8 valid:1;
u8 explicit_set:1; /* _PSx present? */
@ -276,7 +277,6 @@ struct acpi_device_power_state {
} flags;
int power; /* % Power (compared to D0) */
int latency; /* Dx->D0 time (microseconds) */
struct list_head resources; /* Power resources referenced */
};
struct acpi_device_power {
@ -342,16 +342,16 @@ struct acpi_device_wakeup {
};
struct acpi_device_physical_node {
unsigned int node_id;
struct list_head node;
struct device *dev;
unsigned int node_id;
bool put_online:1;
};
struct acpi_device_properties {
struct list_head list;
const guid_t *guid;
union acpi_object *properties;
struct list_head list;
void **bufs;
};
@ -488,12 +488,12 @@ struct acpi_device {
/* Non-device subnode */
struct acpi_data_node {
struct list_head sibling;
const char *name;
acpi_handle handle;
struct fwnode_handle fwnode;
struct fwnode_handle *parent;
struct acpi_device_data data;
struct list_head sibling;
struct kobject kobj;
struct completion kobj_done;
};