3 files changed, 24 insertions, 2 deletions
diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c
index a079975f671f..a7c768860648 100644
--- a/drivers/acpi/parser/psloop.c
+++ b/drivers/acpi/parser/psloop.c
@@ -325,6 +325,15 @@ acpi_ps_create_op(struct acpi_walk_state *walk_state,
 		op->named.length = 0;
 	}
 
+	if (walk_state->opcode == AML_BANK_FIELD_OP) {
+		/*
+		 * Backup to beginning of bank_field declaration
+		 * body_length is unknown until we parse the body
+		 */
+		op->named.data = aml_op_start;
+		op->named.length = 0;
+	}
+
 	parent_scope = acpi_ps_get_parent_scope(&(walk_state->parser_state));
 	acpi_ps_append_arg(parent_scope, op);
 
@@ -1040,6 +1049,16 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
 			    (u32) (parser_state->aml - op->named.data);
 		}
 
+		if (op->common.aml_opcode == AML_BANK_FIELD_OP) {
+			/*
+			 * Backup to beginning of bank_field declaration
+			 *
+			 * body_length is unknown until we parse the body
+			 */
+			op->named.length =
+			    (u32) (parser_state->aml - op->named.data);
+		}
+
 		/* This op complete, notify the dispatcher */
 
 		if (walk_state->ascending_callback != NULL) {
diff --git a/drivers/acpi/parser/psopcode.c b/drivers/acpi/parser/psopcode.c
index b273a0a127e6..18ed59dd2a6e 100644
--- a/drivers/acpi/parser/psopcode.c
+++ b/drivers/acpi/parser/psopcode.c
@@ -520,9 +520,10 @@ const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
 		 AML_TYPE_NAMED_FIELD,
 		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
 /* 5F */ ACPI_OP("BankField", ARGP_BANK_FIELD_OP, ARGI_BANK_FIELD_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+		 ACPI_TYPE_LOCAL_BANK_FIELD, AML_CLASS_NAMED_OBJECT,
 		 AML_TYPE_NAMED_FIELD,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
+		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD |
+		 AML_DEFER),
 
 /* Internal opcodes that map to invalid AML opcodes */
 
diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c
index 1442e55c40d1..a8995ca52ee7 100644
--- a/drivers/acpi/parser/psparse.c
+++ b/drivers/acpi/parser/psparse.c
@@ -205,6 +205,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
 			    || (op->common.parent->common.aml_opcode ==
 				AML_PACKAGE_OP)
 			    || (op->common.parent->common.aml_opcode ==
+				AML_BANK_FIELD_OP)
+			    || (op->common.parent->common.aml_opcode ==
 				AML_VAR_PACKAGE_OP)) {
 				replacement_op =
 				    acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);