3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lv Zheng <[email protected]>

commit f254e3c57b9d952e987502aefa0804c177dd2503 upstream.

ACPICA commit 7d9fd64397d7c38899d3dc497525f6e6b044e0e3

OSPMs like Linux expect an acpi_physical_address returning value from
acpi_find_root_pointer(). This triggers warnings if sizeof (acpi_size) doesn't
equal to sizeof (acpi_physical_address):
  drivers/acpi/osl.c:275:3: warning: passing argument 1 of 
'acpi_find_root_pointer' from incompatible pointer type [enabled by default]
  In file included from include/acpi/acpi.h:64:0,
                   from include/linux/acpi.h:36,
                   from drivers/acpi/osl.c:41:
  include/acpi/acpixf.h:433:1: note: expected 'acpi_size *' but argument is of 
type 'acpi_physical_address *'
This patch corrects acpi_find_root_pointer().

Link: https://github.com/acpica/acpica/commit/7d9fd643
Signed-off-by: Lv Zheng <[email protected]>
Signed-off-by: Bob Moore <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Dirk Behme <[email protected]>
Signed-off-by: George G. Davis <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/acpi/acpica/tbxfroot.c |    7 ++++---
 include/acpi/acpixf.h          |    2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -111,7 +111,7 @@ acpi_status acpi_tb_validate_rsdp(struct
  *
  
******************************************************************************/
 
-acpi_status __init acpi_find_root_pointer(acpi_size *table_address)
+acpi_status __init acpi_find_root_pointer(acpi_physical_address * 
table_address)
 {
        u8 *table_ptr;
        u8 *mem_rover;
@@ -169,7 +169,8 @@ acpi_status __init acpi_find_root_pointe
                        physical_address +=
                            (u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
 
-                       *table_address = physical_address;
+                       *table_address =
+                           (acpi_physical_address) physical_address;
                        return_ACPI_STATUS(AE_OK);
                }
        }
@@ -202,7 +203,7 @@ acpi_status __init acpi_find_root_pointe
                    (ACPI_HI_RSDP_WINDOW_BASE +
                     ACPI_PTR_DIFF(mem_rover, table_ptr));
 
-               *table_address = physical_address;
+               *table_address = (acpi_physical_address) physical_address;
                return_ACPI_STATUS(AE_OK);
        }
 
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -175,7 +175,7 @@ acpi_status __init acpi_load_tables(void
  */
 acpi_status __init acpi_reallocate_root_table(void);
 
-acpi_status __init acpi_find_root_pointer(acpi_size *rsdp_address);
+acpi_status __init acpi_find_root_pointer(acpi_physical_address * 
rsdp_address);
 
 acpi_status acpi_unload_table_id(acpi_owner_id id);
 


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