Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

This includes initial support for the recently published ACPI 5.0 spec.
In particular, support for the "hardware-reduced" bit that eliminates
the dependency on legacy hardware.

APEI has patches resulting from testing on real hardware.

Plus other random fixes.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (52 commits)
  acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec
  intel_idle: Split up and provide per CPU initialization func
  ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2
  ACPI processor: Remove unneeded cpuidle_unregister_driver call
  intel idle: Make idle driver more robust
  intel_idle: Fix a cast to pointer from integer of different size warning in intel_idle
  ACPI: kernel-parameters.txt : Add intel_idle.max_cstate
  intel_idle: remove redundant local_irq_disable() call
  ACPI processor: Fix error path, also remove sysdev link
  ACPI: processor: fix acpi_get_cpuid for UP processor
  intel_idle: fix API misuse
  ACPI APEI: Convert atomicio routines
  ACPI: Export interfaces for ioremapping/iounmapping ACPI registers
  ACPI: Fix possible alignment issues with GAS 'address' references
  ACPI, ia64: Use SRAT table rev to use 8bit or 16/32bit PXM fields (ia64)
  ACPI, x86: Use SRAT table rev to use 8bit or 32bit PXM fields (x86/x86-64)
  ACPI: Store SRAT table revision
  ACPI, APEI, Resolve false conflict between ACPI NVS and APEI
  ACPI, Record ACPI NVS regions
  ACPI, APEI, EINJ, Refine the fix of resource conflict
  ...

1 files changed, 81 insertions, 8 deletions

diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 3a8a89e..3c6df4b 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2012, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -313,6 +313,38 @@ acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed)
 							  resource_source));
 			break;
 
+		case ACPI_RESOURCE_TYPE_GPIO:
+
+			total_size =
+			    (acpi_rs_length) (total_size +
+					      (resource->data.gpio.
+					       pin_table_length * 2) +
+					      resource->data.gpio.
+					      resource_source.string_length +
+					      resource->data.gpio.
+					      vendor_length);
+
+			break;
+
+		case ACPI_RESOURCE_TYPE_SERIAL_BUS:
+
+			total_size =
+			    acpi_gbl_aml_resource_serial_bus_sizes[resource->
+								   data.
+								   common_serial_bus.
+								   type];
+
+			total_size = (acpi_rs_length) (total_size +
+						       resource->data.
+						       i2c_serial_bus.
+						       resource_source.
+						       string_length +
+						       resource->data.
+						       i2c_serial_bus.
+						       vendor_length);
+
+			break;
+
 		default:
 			break;
 		}
@@ -362,10 +394,11 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 	u32 extra_struct_bytes;
 	u8 resource_index;
 	u8 minimum_aml_resource_length;
+	union aml_resource *aml_resource;
 
 	ACPI_FUNCTION_TRACE(rs_get_list_length);
 
-	*size_needed = 0;
+	*size_needed = ACPI_RS_SIZE_MIN;	/* Minimum size is one end_tag */
 	end_aml = aml_buffer + aml_buffer_length;
 
 	/* Walk the list of AML resource descriptors */
@@ -376,9 +409,15 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 
 		status = acpi_ut_validate_resource(aml_buffer, &resource_index);
 		if (ACPI_FAILURE(status)) {
+			/*
+			 * Exit on failure. Cannot continue because the descriptor length
+			 * may be bogus also.
+			 */
 			return_ACPI_STATUS(status);
 		}
 
+		aml_resource = (void *)aml_buffer;
+
 		/* Get the resource length and base (minimum) AML size */
 
 		resource_length = acpi_ut_get_resource_length(aml_buffer);
@@ -422,10 +461,8 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 
 		case ACPI_RESOURCE_NAME_END_TAG:
 			/*
-			 * End Tag:
-			 * This is the normal exit, add size of end_tag
+			 * End Tag: This is the normal exit
 			 */
-			*size_needed += ACPI_RS_SIZE_MIN;
 			return_ACPI_STATUS(AE_OK);
 
 		case ACPI_RESOURCE_NAME_ADDRESS32:
@@ -457,6 +494,33 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 							 minimum_aml_resource_length);
 			break;
 
+		case ACPI_RESOURCE_NAME_GPIO:
+
+			/* Vendor data is optional */
+
+			if (aml_resource->gpio.vendor_length) {
+				extra_struct_bytes +=
+				    aml_resource->gpio.vendor_offset -
+				    aml_resource->gpio.pin_table_offset +
+				    aml_resource->gpio.vendor_length;
+			} else {
+				extra_struct_bytes +=
+				    aml_resource->large_header.resource_length +
+				    sizeof(struct aml_resource_large_header) -
+				    aml_resource->gpio.pin_table_offset;
+			}
+			break;
+
+		case ACPI_RESOURCE_NAME_SERIAL_BUS:
+
+			minimum_aml_resource_length =
+			    acpi_gbl_resource_aml_serial_bus_sizes
+			    [aml_resource->common_serial_bus.type];
+			extra_struct_bytes +=
+			    aml_resource->common_serial_bus.resource_length -
+			    minimum_aml_resource_length;
+			break;
+
 		default:
 			break;
 		}
@@ -467,9 +531,18 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 		 * Important: Round the size up for the appropriate alignment. This
 		 * is a requirement on IA64.
 		 */
-		buffer_size = acpi_gbl_resource_struct_sizes[resource_index] +
-		    extra_struct_bytes;
-		buffer_size = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
+		if (acpi_ut_get_resource_type(aml_buffer) ==
+		    ACPI_RESOURCE_NAME_SERIAL_BUS) {
+			buffer_size =
+			    acpi_gbl_resource_struct_serial_bus_sizes
+			    [aml_resource->common_serial_bus.type] +
+			    extra_struct_bytes;
+		} else {
+			buffer_size =
+			    acpi_gbl_resource_struct_sizes[resource_index] +
+			    extra_struct_bytes;
+		}
+		buffer_size = (u32)ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
 
 		*size_needed += buffer_size;