ACPICA: Clib: Eliminate acpi_os_XXXFile()/acpi_log_error and link clibrary fxxx()/errno/perror() instead

ACPICA commit 189429fb7d06cdb89043ae32d615faf553467f1d

This patch follows new ACPICA design, eliminates old portable OSLs, and
implements fopen/fread/fwrite/fclose/fseek/ftell for GNU EFI
environment. This patch also eliminates acpi_log_error(), convering them
into fprintf(stderr)/perror(). Lv Zheng.

Link: https://github.com/acpica/acpica/commit/189429fb
Link: https://bugs.acpica.org/show_bug.cgi?id=1302
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

12 files changed, 89 insertions, 371 deletions

diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 005a4a2125a5..044df9b0356e 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -628,27 +628,3 @@ acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname)
 
 ACPI_EXPORT_SYMBOL(acpi_trace_point)
 #endif
-#ifdef ACPI_APPLICATION
-/*******************************************************************************
- *
- * FUNCTION:    acpi_log_error
- *
- * PARAMETERS:  format              - Printf format field
- *              ...                 - Optional printf arguments
- *
- * RETURN:      None
- *
- * DESCRIPTION: Print error message to the console, used by applications.
- *
- ******************************************************************************/
-void ACPI_INTERNAL_VAR_XFACE acpi_log_error(const char *format, ...)
-{
-	va_list args;
-
-	va_start(args, format);
-	(void)vfprintf(ACPI_FILE_ERR, format, args);
-	va_end(args);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_log_error)
-#endif
diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
index 13b861790896..40eba804d49c 100644
--- a/drivers/acpi/acpica/utprint.c
+++ b/drivers/acpi/acpica/utprint.c
@@ -656,8 +656,7 @@ int vprintf(const char *format, va_list args)
 	length = vsnprintf(acpi_gbl_print_buffer,
 			   sizeof(acpi_gbl_print_buffer), format, args);
 
-	(void)acpi_os_write_file(ACPI_FILE_OUT, acpi_gbl_print_buffer, length,
-				 1);
+	(void)fwrite(acpi_gbl_print_buffer, length, 1, ACPI_FILE_OUT);
 	acpi_os_release_lock(acpi_gbl_print_lock, flags);
 
 	return (length);
@@ -710,7 +709,7 @@ int vfprintf(FILE * file, const char *format, va_list args)
 	length = vsnprintf(acpi_gbl_print_buffer,
 			   sizeof(acpi_gbl_print_buffer), format, args);
 
-	(void)acpi_os_write_file(file, acpi_gbl_print_buffer, length, 1);
+	(void)fwrite(acpi_gbl_print_buffer, length, 1, file);
 	acpi_os_release_lock(acpi_gbl_print_lock, flags);
 
 	return (length);
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index 562603d7aabe..f3414c83abb1 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -371,6 +371,12 @@ acpi_status acpi_os_wait_command_ready(void);
 acpi_status acpi_os_notify_command_complete(void);
 #endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_trace_point
+void
+acpi_os_trace_point(acpi_trace_event_type type,
+		    u8 begin, u8 *aml, char *pathname);
+#endif
+
 /*
  * Obtain ACPI table(s)
  */
@@ -416,41 +422,4 @@ char *acpi_os_get_next_filename(void *dir_handle);
 void acpi_os_close_directory(void *dir_handle);
 #endif
 
-/*
- * File I/O and related support
- */
-#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_file
-ACPI_FILE acpi_os_open_file(const char *path, u8 modes);
-#endif
-
-#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_file
-void acpi_os_close_file(ACPI_FILE file);
-#endif
-
-#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_file
-int
-acpi_os_read_file(ACPI_FILE file,
-		  void *buffer, acpi_size size, acpi_size count);
-#endif
-
-#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_file
-int
-acpi_os_write_file(ACPI_FILE file,
-		   void *buffer, acpi_size size, acpi_size count);
-#endif
-
-#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_file_offset
-long acpi_os_get_file_offset(ACPI_FILE file);
-#endif
-
-#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_set_file_offset
-acpi_status acpi_os_set_file_offset(ACPI_FILE file, long offset, u8 from);
-#endif
-
-#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_trace_point
-void
-acpi_os_trace_point(acpi_trace_event_type type,
-		    u8 begin, u8 *aml, char *pathname);
-#endif
-
 #endif				/* __ACPIOSXF_H__ */
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index c2d4b9c9f8a4..d94e5c0eefe6 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -943,9 +943,6 @@ ACPI_DBG_DEPENDENT_RETURN_VOID(void
 			       acpi_trace_point(acpi_trace_event_type type,
 						u8 begin,
 						u8 *aml, char *pathname))
-ACPI_APP_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1)
-				void ACPI_INTERNAL_VAR_XFACE
-				acpi_log_error(const char *format, ...))
 
 acpi_status acpi_initialize_debugger(void);
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index fa4bd6ad5d24..e96907b2dcbf 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -1288,15 +1288,6 @@ typedef enum {
 #define ACPI_OSI_WIN_8                  0x0C
 #define ACPI_OSI_WIN_10                 0x0D
 
-/* Definitions of file IO */
-
-#define ACPI_FILE_READING               0x01
-#define ACPI_FILE_WRITING               0x02
-#define ACPI_FILE_BINARY                0x04
-
-#define ACPI_FILE_BEGIN                 0x01
-#define ACPI_FILE_END                   0x02
-
 /* Definitions of getopt */
 
 #define ACPI_OPT_END                    -1
diff --git a/tools/power/acpi/common/cmfsize.c b/tools/power/acpi/common/cmfsize.c
index d2240e60566f..bc82596d7354 100644
--- a/tools/power/acpi/common/cmfsize.c
+++ b/tools/power/acpi/common/cmfsize.c
@@ -68,24 +68,24 @@ u32 cm_get_file_size(ACPI_FILE file)
 
 	/* Save the current file pointer, seek to EOF to obtain file size */
 
-	current_offset = acpi_os_get_file_offset(file);
+	current_offset = ftell(file);
 	if (current_offset < 0) {
 		goto offset_error;
 	}
 
-	status = acpi_os_set_file_offset(file, 0, ACPI_FILE_END);
+	status = fseek(file, 0, SEEK_END);
 	if (ACPI_FAILURE(status)) {
 		goto seek_error;
 	}
 
-	file_size = acpi_os_get_file_offset(file);
+	file_size = ftell(file);
 	if (file_size < 0) {
 		goto offset_error;
 	}
 
 	/* Restore original file pointer */
 
-	status = acpi_os_set_file_offset(file, current_offset, ACPI_FILE_BEGIN);
+	status = fseek(file, current_offset, SEEK_SET);
 	if (ACPI_FAILURE(status)) {
 		goto seek_error;
 	}
@@ -93,10 +93,10 @@ u32 cm_get_file_size(ACPI_FILE file)
 	return ((u32)file_size);
 
 offset_error:
-	acpi_log_error("Could not get file offset");
+	fprintf(stderr, "Could not get file offset\n");
 	return (ACPI_UINT32_MAX);
 
 seek_error:
-	acpi_log_error("Could not set file offset");
+	fprintf(stderr, "Could not set file offset\n");
 	return (ACPI_UINT32_MAX);
 }
diff --git a/tools/power/acpi/common/getopt.c b/tools/power/acpi/common/getopt.c
index e9e80910a61d..3919970f5aea 100644
--- a/tools/power/acpi/common/getopt.c
+++ b/tools/power/acpi/common/getopt.c
@@ -57,7 +57,7 @@
 #include "acapps.h"
 
 #define ACPI_OPTION_ERROR(msg, badchar) \
-	if (acpi_gbl_opterr) {acpi_log_error ("%s%c\n", msg, badchar);}
+	if (acpi_gbl_opterr) {fprintf (stderr, "%s%c\n", msg, badchar);}
 
 int acpi_gbl_opterr = 1;
 int acpi_gbl_optind = 1;
diff --git a/tools/power/acpi/os_specific/service_layers/oslibcfs.c b/tools/power/acpi/os_specific/service_layers/oslibcfs.c
deleted file mode 100644
index 11f4aba55aab..000000000000
--- a/tools/power/acpi/os_specific/service_layers/oslibcfs.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/******************************************************************************
- *
- * Module Name: oslibcfs - C library OSL for file I/O
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2016, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <stdio.h>
-#include <stdarg.h>
-
-#define _COMPONENT          ACPI_OS_SERVICES
-ACPI_MODULE_NAME("oslibcfs")
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_os_open_file
- *
- * PARAMETERS:  path                - File path
- *              modes               - File operation type
- *
- * RETURN:      File descriptor.
- *
- * DESCRIPTION: Open a file for reading (ACPI_FILE_READING) or/and writing
- *              (ACPI_FILE_WRITING).
- *
- ******************************************************************************/
-ACPI_FILE acpi_os_open_file(const char *path, u8 modes)
-{
-	ACPI_FILE file;
-	u32 i = 0;
-	char modes_str[4];
-
-	if (modes & ACPI_FILE_READING) {
-		modes_str[i++] = 'r';
-	}
-	if (modes & ACPI_FILE_WRITING) {
-		modes_str[i++] = 'w';
-	}
-
-	if (modes & ACPI_FILE_BINARY) {
-		modes_str[i++] = 'b';
-	}
-
-	modes_str[i++] = '\0';
-
-	file = fopen(path, modes_str);
-	if (!file) {
-		perror("Could not open file");
-	}
-
-	return (file);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_os_close_file
- *
- * PARAMETERS:  file                - An open file descriptor
- *
- * RETURN:      None.
- *
- * DESCRIPTION: Close a file opened via acpi_os_open_file.
- *
- ******************************************************************************/
-
-void acpi_os_close_file(ACPI_FILE file)
-{
-
-	fclose(file);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_os_read_file
- *
- * PARAMETERS:  file                - An open file descriptor
- *              buffer              - Data buffer
- *              size                - Data block size
- *              count               - Number of data blocks
- *
- * RETURN:      Number of bytes actually read.
- *
- * DESCRIPTION: Read from a file.
- *
- ******************************************************************************/
-
-int
-acpi_os_read_file(ACPI_FILE file, void *buffer, acpi_size size, acpi_size count)
-{
-	int length;
-
-	length = fread(buffer, size, count, file);
-	if (length < 0) {
-		perror("Error reading file");
-	}
-
-	return (length);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_os_write_file
- *
- * PARAMETERS:  file                - An open file descriptor
- *              buffer              - Data buffer
- *              size                - Data block size
- *              count               - Number of data blocks
- *
- * RETURN:      Number of bytes actually written.
- *
- * DESCRIPTION: Write to a file.
- *
- ******************************************************************************/
-
-int
-acpi_os_write_file(ACPI_FILE file,
-		   void *buffer, acpi_size size, acpi_size count)
-{
-	int length;
-
-	length = fwrite(buffer, size, count, file);
-	if (length < 0) {
-		perror("Error writing file");
-	}
-
-	return (length);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_os_get_file_offset
- *
- * PARAMETERS:  file                - An open file descriptor
- *
- * RETURN:      Current file pointer position.
- *
- * DESCRIPTION: Get current file offset.
- *
- ******************************************************************************/
-
-long acpi_os_get_file_offset(ACPI_FILE file)
-{
-	long offset;
-
-	offset = ftell(file);
-	return (offset);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_os_set_file_offset
- *
- * PARAMETERS:  file                - An open file descriptor
- *              offset              - New file offset
- *              from                - From begin/end of file
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Set current file offset.
- *
- ******************************************************************************/
-
-acpi_status acpi_os_set_file_offset(ACPI_FILE file, long offset, u8 from)
-{
-	int ret = 0;
-
-	if (from == ACPI_FILE_BEGIN) {
-		ret = fseek(file, offset, SEEK_SET);
-	}
-
-	if (from == ACPI_FILE_END) {
-		ret = fseek(file, offset, SEEK_END);
-	}
-
-	if (ret < 0) {
-		return (AE_ERROR);
-	} else {
-		return (AE_OK);
-	}
-}
diff --git a/tools/power/acpi/tools/acpidump/Makefile b/tools/power/acpi/tools/acpidump/Makefile
index 2942cdced2ad..a710f60290ee 100644
--- a/tools/power/acpi/tools/acpidump/Makefile
+++ b/tools/power/acpi/tools/acpidump/Makefile
@@ -41,7 +41,6 @@ TOOL_OBJS = \
 	utprint.o\
 	utstring.o\
 	utxferror.o\
-	oslibcfs.o\
 	oslinuxtbl.o\
 	cmfsize.o\
 	getopt.o
diff --git a/tools/power/acpi/tools/acpidump/apdump.c b/tools/power/acpi/tools/acpidump/apdump.c
index 2a1507c89dbf..1c4e00bd8acb 100644
--- a/tools/power/acpi/tools/acpidump/apdump.c
+++ b/tools/power/acpi/tools/acpidump/apdump.c
@@ -69,16 +69,17 @@ u8 ap_is_valid_header(struct acpi_table_header *table)
 		/* Make sure signature is all ASCII and a valid ACPI name */
 
 		if (!acpi_ut_valid_nameseg(table->signature)) {
-			acpi_log_error("Table signature (0x%8.8X) is invalid\n",
-				       *(u32 *)table->signature);
+			fprintf(stderr,
+				"Table signature (0x%8.8X) is invalid\n",
+				*(u32 *)table->signature);
 			return (FALSE);
 		}
 
 		/* Check for minimum table length */
 
 		if (table->length < sizeof(struct acpi_table_header)) {
-			acpi_log_error("Table length (0x%8.8X) is invalid\n",
-				       table->length);
+			fprintf(stderr, "Table length (0x%8.8X) is invalid\n",
+				table->length);
 			return (FALSE);
 		}
 	}
@@ -115,8 +116,8 @@ u8 ap_is_valid_checksum(struct acpi_table_header *table)
 	}
 
 	if (ACPI_FAILURE(status)) {
-		acpi_log_error("%4.4s: Warning: wrong checksum in table\n",
-			       table->signature);
+		fprintf(stderr, "%4.4s: Warning: wrong checksum in table\n",
+			table->signature);
 	}
 
 	return (AE_OK);
@@ -239,14 +240,14 @@ int ap_dump_all_tables(void)
 			if (status == AE_LIMIT) {
 				return (0);
 			} else if (i == 0) {
-				acpi_log_error
-				    ("Could not get ACPI tables, %s\n",
-				     acpi_format_exception(status));
+				fprintf(stderr,
+					"Could not get ACPI tables, %s\n",
+					acpi_format_exception(status));
 				return (-1);
 			} else {
-				acpi_log_error
-				    ("Could not get ACPI table at index %u, %s\n",
-				     i, acpi_format_exception(status));
+				fprintf(stderr,
+					"Could not get ACPI table at index %u, %s\n",
+					i, acpi_format_exception(status));
 				continue;
 			}
 		}
@@ -289,17 +290,17 @@ int ap_dump_table_by_address(char *ascii_address)
 	status = acpi_ut_strtoul64(ascii_address, ACPI_ANY_BASE,
 				   ACPI_MAX64_BYTE_WIDTH, &long_address);
 	if (ACPI_FAILURE(status)) {
-		acpi_log_error("%s: Could not convert to a physical address\n",
-			       ascii_address);
+		fprintf(stderr, "%s: Could not convert to a physical address\n",
+			ascii_address);
 		return (-1);
 	}
 
 	address = (acpi_physical_address)long_address;
 	status = acpi_os_get_table_by_address(address, &table);
 	if (ACPI_FAILURE(status)) {
-		acpi_log_error("Could not get table at 0x%8.8X%8.8X, %s\n",
-			       ACPI_FORMAT_UINT64(address),
-			       acpi_format_exception(status));
+		fprintf(stderr, "Could not get table at 0x%8.8X%8.8X, %s\n",
+			ACPI_FORMAT_UINT64(address),
+			acpi_format_exception(status));
 		return (-1);
 	}
 
@@ -331,9 +332,9 @@ int ap_dump_table_by_name(char *signature)
 	int table_status;
 
 	if (strlen(signature) != ACPI_NAME_SIZE) {
-		acpi_log_error
-		    ("Invalid table signature [%s]: must be exactly 4 characters\n",
-		     signature);
+		fprintf(stderr,
+			"Invalid table signature [%s]: must be exactly 4 characters\n",
+			signature);
 		return (-1);
 	}
 
@@ -363,9 +364,9 @@ int ap_dump_table_by_name(char *signature)
 				return (0);
 			}
 
-			acpi_log_error
-			    ("Could not get ACPI table with signature [%s], %s\n",
-			     local_signature, acpi_format_exception(status));
+			fprintf(stderr,
+				"Could not get ACPI table with signature [%s], %s\n",
+				local_signature, acpi_format_exception(status));
 			return (-1);
 		}
 
@@ -408,24 +409,24 @@ int ap_dump_table_from_file(char *pathname)
 	}
 
 	if (!acpi_ut_valid_nameseg(table->signature)) {
-		acpi_log_error
-		    ("No valid ACPI signature was found in input file %s\n",
-		     pathname);
+		fprintf(stderr,
+			"No valid ACPI signature was found in input file %s\n",
+			pathname);
 	}
 
 	/* File must be at least as long as the table length */
 
 	if (table->length > file_size) {
-		acpi_log_error
-		    ("Table length (0x%X) is too large for input file (0x%X) %s\n",
-		     table->length, file_size, pathname);
+		fprintf(stderr,
+			"Table length (0x%X) is too large for input file (0x%X) %s\n",
+			table->length, file_size, pathname);
 		goto exit;
 	}
 
 	if (gbl_verbose_mode) {
-		acpi_log_error
-		    ("Input file:  %s contains table [%4.4s], 0x%X (%u) bytes\n",
-		     pathname, table->signature, file_size, file_size);
+		fprintf(stderr,
+			"Input file:  %s contains table [%4.4s], 0x%X (%u) bytes\n",
+			pathname, table->signature, file_size, file_size);
 	}
 
 	table_status = ap_dump_table_buffer(table, 0, 0);
diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c
index 71edeb499096..dd5b861dc4a8 100644
--- a/tools/power/acpi/tools/acpidump/apfiles.c
+++ b/tools/power/acpi/tools/acpidump/apfiles.c
@@ -65,7 +65,8 @@ static int ap_is_existing_file(char *pathname)
 	struct stat stat_info;
 
 	if (!stat(pathname, &stat_info)) {
-		acpi_log_error("Target path already exists, overwrite? [y|n] ");
+		fprintf(stderr,
+			"Target path already exists, overwrite? [y|n] ");
 
 		if (getchar() != 'y') {
 			return (-1);
@@ -101,9 +102,9 @@ int ap_open_output_file(char *pathname)
 
 	/* Point stdout to the file */
 
-	file = acpi_os_open_file(pathname, ACPI_FILE_WRITING);
+	file = fopen(pathname, "w");
 	if (!file) {
-		acpi_log_error("Could not open output file: %s\n", pathname);
+		fprintf(stderr, "Could not open output file: %s\n", pathname);
 		return (-1);
 	}
 
@@ -164,29 +165,29 @@ int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
 	strcat(filename, FILE_SUFFIX_BINARY_TABLE);
 
 	if (gbl_verbose_mode) {
-		acpi_log_error
-		    ("Writing [%4.4s] to binary file: %s 0x%X (%u) bytes\n",
-		     table->signature, filename, table->length, table->length);
+		fprintf(stderr,
+			"Writing [%4.4s] to binary file: %s 0x%X (%u) bytes\n",
+			table->signature, filename, table->length,
+			table->length);
 	}
 
 	/* Open the file and dump the entire table in binary mode */
 
-	file = acpi_os_open_file(filename,
-				 ACPI_FILE_WRITING | ACPI_FILE_BINARY);
+	file = fopen(filename, "wb");
 	if (!file) {
-		acpi_log_error("Could not open output file: %s\n", filename);
+		fprintf(stderr, "Could not open output file: %s\n", filename);
 		return (-1);
 	}
 
-	actual = acpi_os_write_file(file, table, 1, table_length);
+	actual = fwrite(table, 1, table_length, file);
 	if (actual != table_length) {
-		acpi_log_error("Error writing binary output file: %s\n",
-			       filename);
-		acpi_os_close_file(file);
+		fprintf(stderr, "Error writing binary output file: %s\n",
+			filename);
+		fclose(file);
 		return (-1);
 	}
 
-	acpi_os_close_file(file);
+	fclose(file);
 	return (0);
 }
 
@@ -213,10 +214,9 @@ struct acpi_table_header *ap_get_table_from_file(char *pathname,
 
 	/* Must use binary mode */
 
-	file =
-	    acpi_os_open_file(pathname, ACPI_FILE_READING | ACPI_FILE_BINARY);
+	file = fopen(pathname, "rb");
 	if (!file) {
-		acpi_log_error("Could not open input file: %s\n", pathname);
+		fprintf(stderr, "Could not open input file: %s\n", pathname);
 		return (NULL);
 	}
 
@@ -224,7 +224,8 @@ struct acpi_table_header *ap_get_table_from_file(char *pathname,
 
 	file_size = cm_get_file_size(file);
 	if (file_size == ACPI_UINT32_MAX) {
-		acpi_log_error("Could not get input file size: %s\n", pathname);
+		fprintf(stderr,
+			"Could not get input file size: %s\n", pathname);
 		goto cleanup;
 	}
 
@@ -232,16 +233,17 @@ struct acpi_table_header *ap_get_table_from_file(char *pathname,
 
 	buffer = ACPI_ALLOCATE_ZEROED(file_size);
 	if (!buffer) {
-		acpi_log_error("Could not allocate file buffer of size: %u\n",
-			       file_size);
+		fprintf(stderr,
+			"Could not allocate file buffer of size: %u\n",
+			file_size);
 		goto cleanup;
 	}
 
 	/* Read the entire file */
 
-	actual = acpi_os_read_file(file, buffer, 1, file_size);
+	actual = fread(buffer, 1, file_size, file);
 	if (actual != file_size) {
-		acpi_log_error("Could not read input file: %s\n", pathname);
+		fprintf(stderr, "Could not read input file: %s\n", pathname);
 		ACPI_FREE(buffer);
 		buffer = NULL;
 		goto cleanup;
@@ -250,6 +252,6 @@ struct acpi_table_header *ap_get_table_from_file(char *pathname,
 	*out_file_size = file_size;
 
 cleanup:
-	acpi_os_close_file(file);
+	fclose(file);
 	return (buffer);
 }
diff --git a/tools/power/acpi/tools/acpidump/apmain.c b/tools/power/acpi/tools/acpidump/apmain.c
index 17ce0d7ef29d..f32968e22af5 100644
--- a/tools/power/acpi/tools/acpidump/apmain.c
+++ b/tools/power/acpi/tools/acpidump/apmain.c
@@ -139,8 +139,8 @@ static int ap_insert_action(char *argument, u32 to_be_done)
 
 	current_action++;
 	if (current_action > AP_MAX_ACTIONS) {
-		acpi_log_error("Too many table options (max %u)\n",
-			       AP_MAX_ACTIONS);
+		fprintf(stderr, "Too many table options (max %u)\n",
+			AP_MAX_ACTIONS);
 		return (-1);
 	}
 
@@ -185,9 +185,9 @@ static int ap_do_options(int argc, char **argv)
 			} else if (!strcmp(acpi_gbl_optarg, "off")) {
 				gbl_dump_customized_tables = FALSE;
 			} else {
-				acpi_log_error
-				    ("%s: Cannot handle this switch, please use on|off\n",
-				     acpi_gbl_optarg);
+				fprintf(stderr,
+					"%s: Cannot handle this switch, please use on|off\n",
+					acpi_gbl_optarg);
 				return (-1);
 			}
 			continue;
@@ -212,9 +212,9 @@ static int ap_do_options(int argc, char **argv)
 					      ACPI_MAX64_BYTE_WIDTH,
 					      &gbl_rsdp_base);
 			if (ACPI_FAILURE(status)) {
-				acpi_log_error
-				    ("%s: Could not convert to a physical address\n",
-				     acpi_gbl_optarg);
+				fprintf(stderr,
+					"%s: Could not convert to a physical address\n",
+					acpi_gbl_optarg);
 				return (-1);
 			}
 			continue;
@@ -241,7 +241,7 @@ static int ap_do_options(int argc, char **argv)
 		case 'z':	/* Verbose mode */
 
 			gbl_verbose_mode = TRUE;
-			acpi_log_error(ACPI_COMMON_SIGNON(AP_UTILITY_NAME));
+			fprintf(stderr, ACPI_COMMON_SIGNON(AP_UTILITY_NAME));
 			continue;
 
 			/*
@@ -353,8 +353,9 @@ int ACPI_SYSTEM_XFACE acpi_main(int argc, char *argv[])
 
 		default:
 
-			acpi_log_error("Internal error, invalid action: 0x%X\n",
-				       action->to_be_done);
+			fprintf(stderr,
+				"Internal error, invalid action: 0x%X\n",
+				action->to_be_done);
 			return (-1);
 		}
 
@@ -369,12 +370,12 @@ int ACPI_SYSTEM_XFACE acpi_main(int argc, char *argv[])
 			/* Summary for the output file */
 
 			file_size = cm_get_file_size(gbl_output_file);
-			acpi_log_error
-			    ("Output file %s contains 0x%X (%u) bytes\n\n",
-			     gbl_output_filename, file_size, file_size);
+			fprintf(stderr,
+				"Output file %s contains 0x%X (%u) bytes\n\n",
+				gbl_output_filename, file_size, file_size);
 		}
 
-		acpi_os_close_file(gbl_output_file);
+		fclose(gbl_output_file);
 	}
 
 	return (status);