From: Erik Schmauss <erik.schmauss@intel.com>
Date: Wed, 14 Mar 2018 16:13:05 -0700
Subject: ACPICA: macros: fix ACPI_ERROR_NAMESPACE macro
Patch-mainline: v4.17-rc1
Git-commit: 0fe0bebf5fb905ae682b1ecfd0b51b3a89e45ee6
References: bsc#1117419

Fixing the ACPI_ERROR_NAMESPACE macros created an "unused variable"
compile error when ACPI_NO_ERROR_MESSAGES was defined. This commit
also fixes the above compilation errors by surrounding variables
meant for debugging inside a new ACPI_ERROR_ONLY macro.

Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Lee, Chun-Yi <jlee@suse.com>
---
 drivers/acpi/acpica/acmacros.h |    4 +++-
 drivers/acpi/acpica/evgpeblk.c |    6 ++++--
 drivers/acpi/acpica/psobject.c |   10 ++++++----
 drivers/acpi/acpica/tbinstal.c |    6 +++---
 4 files changed, 16 insertions(+), 10 deletions(-)

--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -460,16 +460,18 @@
 #define ACPI_WARN_PREDEFINED(plist)         acpi_ut_predefined_warning plist
 #define ACPI_INFO_PREDEFINED(plist)         acpi_ut_predefined_info plist
 #define ACPI_BIOS_ERROR_PREDEFINED(plist)   acpi_ut_predefined_bios_error plist
+#define ACPI_ERROR_ONLY(s)                  s
 
 #else
 
 /* No error messages */
 
-#define ACPI_ERROR_NAMESPACE(s, e)
+#define ACPI_ERROR_NAMESPACE(s, p, e)
 #define ACPI_ERROR_METHOD(s, n, p, e)
 #define ACPI_WARN_PREDEFINED(plist)
 #define ACPI_INFO_PREDEFINED(plist)
 #define ACPI_BIOS_ERROR_PREDEFINED(plist)
+#define ACPI_ERROR_ONLY(s)
 
 #endif				/* ACPI_NO_ERROR_MESSAGES */
 
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -443,10 +443,10 @@ acpi_ev_initialize_gpe_block(struct acpi
 	struct acpi_gpe_event_info *gpe_event_info;
 	u32 gpe_enabled_count;
 	u32 gpe_index;
-	u32 gpe_number;
 	u32 i;
 	u32 j;
 	u8 *is_polling_needed = context;
+	ACPI_ERROR_ONLY(u32 gpe_number);
 
 	ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
 
@@ -472,7 +472,9 @@ acpi_ev_initialize_gpe_block(struct acpi
 
 			gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
 			gpe_event_info = &gpe_block->event_info[gpe_index];
-			gpe_number = gpe_block->block_base_number + gpe_index;
+			ACPI_ERROR_ONLY(gpe_number =
+					gpe_block->block_base_number +
+					gpe_index);
 			gpe_event_info->flags |= ACPI_GPE_INITIALIZED;
 
 			/*
--- a/drivers/acpi/acpica/psobject.c
+++ b/drivers/acpi/acpica/psobject.c
@@ -67,7 +67,7 @@ static acpi_status acpi_ps_get_aml_opcod
 
 static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
 {
-	u32 aml_offset;
+	ACPI_ERROR_ONLY(u32 aml_offset);
 
 	ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state);
 
@@ -98,9 +98,11 @@ static acpi_status acpi_ps_get_aml_opcod
 		/* The opcode is unrecognized. Complain and skip unknown opcodes */
 
 		if (walk_state->pass_number == 2) {
-			aml_offset = (u32)ACPI_PTR_DIFF(walk_state->aml,
-							walk_state->
-							parser_state.aml_start);
+			ACPI_ERROR_ONLY(aml_offset =
+					(u32)ACPI_PTR_DIFF(walk_state->aml,
+							   walk_state->
+							   parser_state.
+							   aml_start));
 
 			ACPI_ERROR((AE_INFO,
 				    "Unknown opcode 0x%.2X at table offset 0x%.4X, ignoring",
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -231,11 +231,11 @@ release_and_exit:
 void acpi_tb_override_table(struct acpi_table_desc *old_table_desc)
 {
 	acpi_status status;
-	char *override_type;
 	struct acpi_table_desc new_table_desc;
 	struct acpi_table_header *table;
 	acpi_physical_address address;
 	u32 length;
+	ACPI_ERROR_ONLY(char *override_type);
 
 	/* (1) Attempt logical override (returns a logical address) */
 
@@ -244,7 +244,7 @@ void acpi_tb_override_table(struct acpi_
 		acpi_tb_acquire_temp_table(&new_table_desc,
 					   ACPI_PTR_TO_PHYSADDR(table),
 					   ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL);
-		override_type = "Logical";
+		ACPI_ERROR_ONLY(override_type = "Logical");
 		goto finish_override;
 	}
 
@@ -255,7 +255,7 @@ void acpi_tb_override_table(struct acpi_
 	if (ACPI_SUCCESS(status) && address && length) {
 		acpi_tb_acquire_temp_table(&new_table_desc, address,
 					   ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL);
-		override_type = "Physical";
+		ACPI_ERROR_ONLY(override_type = "Physical");
 		goto finish_override;
 	}