From: Jung-uk Kim Date: Fri, 8 Mar 2013 09:21:54 +0000 (+0000) Subject: ACPICA: Add macros to access pointer to next object in the descriptor list X-Git-Tag: accepted/tizen/common/20141203.182822~2267^2~11^2~25 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1af89271711b23ff9eee66de018bc92eb347ea68;p=platform%2Fkernel%2Flinux-arm64.git ACPICA: Add macros to access pointer to next object in the descriptor list Signed-off-by: Jung-uk Kim Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h index ed7943b..8b7ca40 100644 --- a/drivers/acpi/acpica/acmacros.h +++ b/drivers/acpi/acpica/acmacros.h @@ -322,8 +322,10 @@ * where a pointer to an object of type union acpi_operand_object can also * appear. This macro is used to distinguish them. * - * The "Descriptor" field is the first field in both structures. + * The "DescriptorType" field is the second field in both structures. */ +#define ACPI_GET_DESCRIPTOR_PTR(d) (((union acpi_descriptor *)(void *)(d))->common.common_pointer) +#define ACPI_SET_DESCRIPTOR_PTR(d, o) (((union acpi_descriptor *)(void *)(d))->common.common_pointer = o) #define ACPI_GET_DESCRIPTOR_TYPE(d) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type) #define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = t) diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c index 2de22fb..a877a96 100644 --- a/drivers/acpi/acpica/utcache.c +++ b/drivers/acpi/acpica/utcache.c @@ -127,9 +127,7 @@ acpi_status acpi_os_purge_cache(struct acpi_memory_list * cache) /* Delete and unlink one cached state object */ - next = - ((struct acpi_object_common *)cache->list_head)-> - next_object; + next = ACPI_GET_DESCRIPTOR_PTR(cache->list_head); ACPI_FREE(cache->list_head); cache->list_head = next; @@ -219,8 +217,7 @@ acpi_os_release_object(struct acpi_memory_list * cache, void *object) /* Put the object at the head of the cache list */ - ((struct acpi_object_common *)object)->next_object = - cache->list_head; + ACPI_SET_DESCRIPTOR_PTR(object, cache->list_head); cache->list_head = object; cache->current_depth++; @@ -268,8 +265,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) /* There is an object available, use it */ object = cache->list_head; - cache->list_head = - ((struct acpi_object_common *)object)->next_object; + cache->list_head = ACPI_GET_DESCRIPTOR_PTR(object); cache->current_depth--;