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path: root/drivers/acpi/acpica/utalloc.c
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Diffstat (limited to 'drivers/acpi/acpica/utalloc.c')
-rw-r--r--drivers/acpi/acpica/utalloc.c113
1 files changed, 34 insertions, 79 deletions
diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
index e0ffb580f4b0..d84479610971 100644
--- a/drivers/acpi/acpica/utalloc.c
+++ b/drivers/acpi/acpica/utalloc.c
@@ -48,6 +48,39 @@
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utalloc")
+#if !defined (USE_NATIVE_ALLOCATE_ZEROED)
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_allocate_zeroed
+ *
+ * PARAMETERS: size - Size of the allocation
+ *
+ * RETURN: Address of the allocated memory on success, NULL on failure.
+ *
+ * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
+ * This is the default implementation. Can be overridden via the
+ * USE_NATIVE_ALLOCATE_ZEROED flag.
+ *
+ ******************************************************************************/
+void *acpi_os_allocate_zeroed(acpi_size size)
+{
+ void *allocation;
+
+ ACPI_FUNCTION_ENTRY();
+
+ allocation = acpi_os_allocate(size);
+ if (allocation) {
+
+ /* Clear the memory block */
+
+ ACPI_MEMSET(allocation, 0, size);
+ }
+
+ return (allocation);
+}
+
+#endif /* !USE_NATIVE_ALLOCATE_ZEROED */
+
/*******************************************************************************
*
* FUNCTION: acpi_ut_create_caches
@@ -59,6 +92,7 @@ ACPI_MODULE_NAME("utalloc")
* DESCRIPTION: Create all local caches
*
******************************************************************************/
+
acpi_status acpi_ut_create_caches(void)
{
acpi_status status;
@@ -302,82 +336,3 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
ACPI_MEMSET(buffer->pointer, 0, required_length);
return (AE_OK);
}
-
-#ifdef NOT_USED_BY_LINUX
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_allocate
- *
- * PARAMETERS: size - Size of the allocation
- * component - Component type of caller
- * module - Source file name of caller
- * line - Line number of caller
- *
- * RETURN: Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of malloc.
- *
- ******************************************************************************/
-
-void *acpi_ut_allocate(acpi_size size,
- u32 component, const char *module, u32 line)
-{
- void *allocation;
-
- ACPI_FUNCTION_TRACE_U32(ut_allocate, size);
-
- /* Check for an inadvertent size of zero bytes */
-
- if (!size) {
- ACPI_WARNING((module, line,
- "Attempt to allocate zero bytes, allocating 1 byte"));
- size = 1;
- }
-
- allocation = acpi_os_allocate(size);
- if (!allocation) {
-
- /* Report allocation error */
-
- ACPI_WARNING((module, line,
- "Could not allocate size %u", (u32) size));
-
- return_PTR(NULL);
- }
-
- return_PTR(allocation);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_allocate_zeroed
- *
- * PARAMETERS: size - Size of the allocation
- * component - Component type of caller
- * module - Source file name of caller
- * line - Line number of caller
- *
- * RETURN: Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
- *
- ******************************************************************************/
-
-void *acpi_ut_allocate_zeroed(acpi_size size,
- u32 component, const char *module, u32 line)
-{
- void *allocation;
-
- ACPI_FUNCTION_ENTRY();
-
- allocation = acpi_ut_allocate(size, component, module, line);
- if (allocation) {
-
- /* Clear the memory block */
-
- ACPI_MEMSET(allocation, 0, size);
- }
-
- return (allocation);
-}
-#endif