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ACPICA: Events: Deploys acpi_ev_find_region_handler()

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ACPICA commit b916a0a0ae9e81db1a85523c63ec6aa32d5c70c8

There are code fragments that can be substituted by
acpi_ev_find_region_handler().

This patch cleans up these code fragments. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/b916a0a0
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lv Zheng
2015-12-29 14:02:00 +08:00
committed by Rafael J. Wysocki
parent 7b73806485
commit f31a99cefd
4 changed files with 76 additions and 92 deletions
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56
drivers/acpi/acpica/evhandler.c
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@@ -55,10 +55,6 @@ static acpi_status
acpi_ev_install_handler(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
static union acpi_operand_object
*acpi_ev_find_region_handler(acpi_adr_space_type space_id,
union acpi_operand_object *handler_obj);
/* These are the address spaces that will get default handlers */
u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
@@ -251,35 +247,30 @@ acpi_ev_install_handler(acpi_handle obj_handle,
/* Check if this Device already has a handler for this address space */
next_handler_obj = obj_desc->device.handler;
while (next_handler_obj) {
next_handler_obj =
acpi_ev_find_region_handler(handler_obj->address_space.
space_id,
obj_desc->device.handler);
if (next_handler_obj) {
/* Found a handler, is it for the same address space? */
if (next_handler_obj->address_space.space_id ==
handler_obj->address_space.space_id) {
ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
"Found handler for region [%s] in device %p(%p) "
"handler %p\n",
acpi_ut_get_region_name
(handler_obj->address_space.
space_id), obj_desc,
next_handler_obj,
handler_obj));
ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
"Found handler for region [%s] in device %p(%p) handler %p\n",
acpi_ut_get_region_name(handler_obj->
address_space.
space_id),
obj_desc, next_handler_obj,
handler_obj));
/*
* Since the object we found it on was a device, then it
* means that someone has already installed a handler for
* the branch of the namespace from this device on. Just
* bail out telling the walk routine to not traverse this
* branch. This preserves the scoping rule for handlers.
*/
return (AE_CTRL_DEPTH);
}
/* Walk the linked list of handlers attached to this device */
next_handler_obj = next_handler_obj->address_space.next;
/*
* Since the object we found it on was a device, then it means
* that someone has already installed a handler for the branch
* of the namespace from this device on. Just bail out telling
* the walk routine to not traverse this branch. This preserves
* the scoping rule for handlers.
*/
return (AE_CTRL_DEPTH);
}
/*
@@ -325,9 +316,10 @@ acpi_ev_install_handler(acpi_handle obj_handle,
*
******************************************************************************/
static union acpi_operand_object
*acpi_ev_find_region_handler(acpi_adr_space_type space_id,
union acpi_operand_object *handler_obj)
union acpi_operand_object *acpi_ev_find_region_handler(acpi_adr_space_type
space_id,
union acpi_operand_object
*handler_obj)
{
/* Walk the handler list for this device */