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ACPICA: Update for new gcc-4 warning options 

Added several new options for the gcc-4 generation, and updated
the source accordingly. This includes some code restructuring to
eliminate unreachable code, elimination of some gotos, elimination
of unused return values, and some additional casting.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore 2010-01-21 09:08:31 +08:00 committed by Len Brown
parent 92dcffb916
commit 2147d3f00f
6 changed files with 32 additions and 55 deletions
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13
drivers/acpi/acpica/exconfig.c
View File

@ -490,7 +490,11 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
status = acpi_tb_add_table(&table_desc, &table_index);
if (ACPI_FAILURE(status)) {
goto cleanup;
/* Delete allocated table buffer */
acpi_tb_delete_table(&table_desc);
return_ACPI_STATUS(status);
}
/*
@ -533,13 +537,6 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
acpi_gbl_table_handler_context);
}
cleanup:
if (ACPI_FAILURE(status)) {
/* Delete allocated table buffer */
acpi_tb_delete_table(&table_desc);
}
return_ACPI_STATUS(status);
}

6
drivers/acpi/acpica/hwgpe.c
View File

@ -224,7 +224,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
status = acpi_hw_read(&in_byte, &gpe_register_info->status_address);
if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
return (status);
}
if (register_bit & in_byte) {
@ -234,9 +234,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
/* Set return value */
(*event_status) = local_event_status;
unlock_and_exit:
return (status);
return (AE_OK);
}
/******************************************************************************

24
drivers/acpi/acpica/nspredef.c
View File

@ -1000,27 +1000,25 @@ acpi_ns_check_object_type(struct acpi_predefined_data *data,
/* Is the object one of the expected types? */
if (!(return_btype & expected_btypes)) {
if (return_btype & expected_btypes) {
/* Type mismatch -- attempt repair of the returned object */
/* For reference objects, check that the reference type is correct */
status = acpi_ns_repair_object(data, expected_btypes,
package_index,
return_object_ptr);
if (ACPI_SUCCESS(status)) {
return (AE_OK); /* Repair was successful */
if (return_object->common.type == ACPI_TYPE_LOCAL_REFERENCE) {
status = acpi_ns_check_reference(data, return_object);
}
goto type_error_exit;
return (status);
}
/* For reference objects, check that the reference type is correct */
/* Type mismatch -- attempt repair of the returned object */
if (return_object->common.type == ACPI_TYPE_LOCAL_REFERENCE) {
status = acpi_ns_check_reference(data, return_object);
status = acpi_ns_repair_object(data, expected_btypes,
package_index, return_object_ptr);
if (ACPI_SUCCESS(status)) {
return (AE_OK); /* Repair was successful */
}
return (status);
type_error_exit:
/* Create a string with all expected types for this predefined object */

24
drivers/acpi/acpica/nsrepair2.c
View File

@ -93,7 +93,7 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data,
u32 sort_index,
u8 sort_direction, char *sort_key_name);
static acpi_status
static void
acpi_ns_sort_list(union acpi_operand_object **elements,
u32 count, u32 index, u8 sort_direction);
@ -443,7 +443,6 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data,
union acpi_operand_object *obj_desc;
u32 i;
u32 previous_value;
acpi_status status;
ACPI_FUNCTION_NAME(ns_check_sorted_list);
@ -494,19 +493,15 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data,
/*
* The list must be sorted in the specified order. If we detect a
* discrepancy, issue a warning and sort the entire list
* discrepancy, sort the entire list.
*/
if (((sort_direction == ACPI_SORT_ASCENDING) &&
(obj_desc->integer.value < previous_value)) ||
((sort_direction == ACPI_SORT_DESCENDING) &&
(obj_desc->integer.value > previous_value))) {
status =
acpi_ns_sort_list(return_object->package.elements,
outer_element_count, sort_index,
sort_direction);
if (ACPI_FAILURE(status)) {
return (status);
}
acpi_ns_sort_list(return_object->package.elements,
outer_element_count, sort_index,
sort_direction);
data->flags |= ACPI_OBJECT_REPAIRED;
@ -615,15 +610,16 @@ acpi_ns_remove_null_elements(struct acpi_predefined_data *data,
* Index - Sort by which package element
* sort_direction - Ascending or Descending sort
*
* RETURN: Status
* RETURN: None
*
* DESCRIPTION: Sort the objects that are in a package element list.
*
* NOTE: Assumes that all NULL elements have been removed from the package.
* NOTE: Assumes that all NULL elements have been removed from the package,
* and that all elements have been verified to be of type Integer.
*
*****************************************************************************/
static acpi_status
static void
acpi_ns_sort_list(union acpi_operand_object **elements,
u32 count, u32 index, u8 sort_direction)
{
@ -652,6 +648,4 @@ acpi_ns_sort_list(union acpi_operand_object **elements,
}
}
}
return (AE_OK);
}

16
drivers/acpi/acpica/utmutex.c
View File

@ -50,7 +50,7 @@ ACPI_MODULE_NAME("utmutex")
/* Local prototypes */
static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id);
static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id);
static void acpi_ut_delete_mutex(acpi_mutex_handle mutex_id);
/*******************************************************************************
*
@ -114,7 +114,7 @@ void acpi_ut_mutex_terminate(void)
/* Delete each predefined mutex object */
for (i = 0; i < ACPI_NUM_MUTEX; i++) {
(void)acpi_ut_delete_mutex(i);
acpi_ut_delete_mutex(i);
}
/* Delete the spinlocks */
@ -146,10 +146,6 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id);
if (mutex_id > ACPI_MAX_MUTEX) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
if (!acpi_gbl_mutex_info[mutex_id].mutex) {
status =
acpi_os_create_mutex(&acpi_gbl_mutex_info[mutex_id].mutex);
@ -173,21 +169,15 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
*
******************************************************************************/
static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
static void acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
{
ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id);
if (mutex_id > ACPI_MAX_MUTEX) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
acpi_os_delete_mutex(acpi_gbl_mutex_info[mutex_id].mutex);
acpi_gbl_mutex_info[mutex_id].mutex = NULL;
acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************

4
include/acpi/platform/acenv.h
View File

@ -311,8 +311,8 @@ typedef char *va_list;
#define ACPI_MEMCMP(s1,s2,n) acpi_ut_memcmp((const char *)(s1), (const char *)(s2), (acpi_size)(n))
#define ACPI_MEMCPY(d,s,n) (void) acpi_ut_memcpy ((d), (s), (acpi_size)(n))
#define ACPI_MEMSET(d,v,n) (void) acpi_ut_memset ((d), (v), (acpi_size)(n))
#define ACPI_TOUPPER acpi_ut_to_upper
#define ACPI_TOLOWER acpi_ut_to_lower
#define ACPI_TOUPPER(c) acpi_ut_to_upper ((int) (c))
#define ACPI_TOLOWER(c) acpi_ut_to_lower ((int) (c))
#endif /* ACPI_USE_SYSTEM_CLIBRARY */