ACPICA: De-macroize calls to standard C library functions

ACPICA commit 3b1026e0bdd3c32eb6d5d313f3ba0b1fee7597b4
ACPICA commit 00f0dc83f5cfca53b27a3213ae0d7719b88c2d6b
ACPICA commit 47d22a738d0e19fd241ffe4e3e9d4e198e4afc69

Across all of ACPICA. Replace C library macros such as ACPI_STRLEN with the
standard names such as strlen. The original purpose for these macros is
long since obsolete.
Also cast various invocations as necessary. Bob Moore, Jung-uk Kim, Lv Zheng.

Link: https://github.com/acpica/acpica/commit/3b1026e0
Link: https://github.com/acpica/acpica/commit/00f0dc83
Link: https://github.com/acpica/acpica/commit/47d22a73
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

56 files changed, 260 insertions, 312 deletions

diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 6391c9706e84..ef1e51d0f038 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -210,37 +210,35 @@ void acpi_ut_subsystem_shutdown(void);
  */
 #ifndef ACPI_USE_SYSTEM_CLIBRARY
 
-acpi_size acpi_ut_strlen(const char *string);
+acpi_size strlen(const char *string);
 
-char *acpi_ut_strchr(const char *string, int ch);
+char *strchr(const char *string, int ch);
 
-char *acpi_ut_strcpy(char *dst_string, const char *src_string);
+char *strcpy(char *dst_string, const char *src_string);
 
-char *acpi_ut_strncpy(char *dst_string,
-		      const char *src_string, acpi_size count);
+char *strncpy(char *dst_string, const char *src_string, acpi_size count);
 
-int acpi_ut_memcmp(const char *buffer1, const char *buffer2, acpi_size count);
+int strncmp(const char *string1, const char *string2, acpi_size count);
 
-int acpi_ut_strncmp(const char *string1, const char *string2, acpi_size count);
+int strcmp(const char *string1, const char *string2);
 
-int acpi_ut_strcmp(const char *string1, const char *string2);
+char *strcat(char *dst_string, const char *src_string);
 
-char *acpi_ut_strcat(char *dst_string, const char *src_string);
+char *strncat(char *dst_string, const char *src_string, acpi_size count);
 
-char *acpi_ut_strncat(char *dst_string,
-		      const char *src_string, acpi_size count);
+u32 strtoul(const char *string, char **terminator, u32 base);
 
-u32 acpi_ut_strtoul(const char *string, char **terminator, u32 base);
+char *strstr(char *string1, char *string2);
 
-char *acpi_ut_strstr(char *string1, char *string2);
+int memcmp(void *buffer1, void *buffer2, acpi_size count);
 
-void *acpi_ut_memcpy(void *dest, const void *src, acpi_size count);
+void *memcpy(void *dest, const void *src, acpi_size count);
 
-void *acpi_ut_memset(void *dest, u8 value, acpi_size count);
+void *memset(void *dest, int value, acpi_size count);
 
-int acpi_ut_to_upper(int c);
+int toupper(int c);
 
-int acpi_ut_to_lower(int c);
+int tolower(int c);
 
 extern const u8 _acpi_ctype[];
 
@@ -255,13 +253,13 @@ extern const u8 _acpi_ctype[];
 #define _ACPI_UP     0x01	/* 'A'-'Z' */
 #define _ACPI_XD     0x80	/* '0'-'9', 'A'-'F', 'a'-'f' */
 
-#define ACPI_IS_DIGIT(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_DI))
-#define ACPI_IS_SPACE(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_SP))
-#define ACPI_IS_XDIGIT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_XD))
-#define ACPI_IS_UPPER(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_UP))
-#define ACPI_IS_LOWER(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO))
-#define ACPI_IS_PRINT(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP | _ACPI_DI | _ACPI_XS | _ACPI_PU))
-#define ACPI_IS_ALPHA(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP))
+#define isdigit(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_DI))
+#define isspace(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_SP))
+#define isxdigit(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_XD))
+#define isupper(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_UP))
+#define islower(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO))
+#define isprint(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP | _ACPI_DI | _ACPI_XS | _ACPI_PU))
+#define isalpha(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP))
 
 #endif				/* !ACPI_USE_SYSTEM_CLIBRARY */
 
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index 43b40de90484..20de148594fd 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -502,7 +502,7 @@ acpi_ds_create_field(union acpi_parse_object *op,
 		}
 	}
 
-	ACPI_MEMSET(&info, 0, sizeof(struct acpi_create_field_info));
+	memset(&info, 0, sizeof(struct acpi_create_field_info));
 
 	/* Second arg is the field flags */
 
diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c
index bbe74bcebbae..95779e8ec3bb 100644
--- a/drivers/acpi/acpica/dsinit.c
+++ b/drivers/acpi/acpica/dsinit.c
@@ -207,7 +207,7 @@ acpi_ds_initialize_objects(u32 table_index,
 
 	/* Set all init info to zero */
 
-	ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
+	memset(&info, 0, sizeof(struct acpi_init_walk_info));
 
 	info.owner_id = owner_id;
 	info.table_index = table_index;
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 4a4b2f343713..2beb7fd674ae 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -339,8 +339,8 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
 		/* Initialize buffer from the byte_list (if present) */
 
 		if (byte_list) {
-			ACPI_MEMCPY(obj_desc->buffer.pointer,
-				    byte_list->named.data, byte_list_length);
+			memcpy(obj_desc->buffer.pointer, byte_list->named.data,
+			       byte_list_length);
 		}
 	}
 
@@ -750,8 +750,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
 	case ACPI_TYPE_STRING:
 
 		obj_desc->string.pointer = op->common.value.string;
-		obj_desc->string.length =
-		    (u32)ACPI_STRLEN(op->common.value.string);
+		obj_desc->string.length = (u32)strlen(op->common.value.string);
 
 		/*
 		 * The string is contained in the ACPI table, don't ever try
diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index deeddd6d2f05..ebc577baeaf9 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -572,8 +572,8 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 					obj_desc =
 					    acpi_ut_create_string_object((acpi_size) name_length);
 
-					ACPI_STRNCPY(obj_desc->string.pointer,
-						     name_string, name_length);
+					strncpy(obj_desc->string.pointer,
+						name_string, name_length);
 					status = AE_OK;
 				} else {
 					/*
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index 8840296d5b20..ea4c0d3fca2d 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -377,7 +377,7 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle,
 
 	/* 4) The last two characters of the name are the hex GPE Number */
 
-	gpe_number = ACPI_STRTOUL(&name[2], NULL, 16);
+	gpe_number = strtoul(&name[2], NULL, 16);
 	if (gpe_number == ACPI_UINT32_MAX) {
 
 		/* Conversion failed; invalid method, just ignore it */
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 6e0df2b9d5a4..24a4c5c2b124 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -470,7 +470,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
 
-		ACPI_MEMCPY(table, table_header, length);
+		memcpy(table, table_header, length);
 		break;
 
 	default:
diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c
index 89a976b4ccf2..075d654c837f 100644
--- a/drivers/acpi/acpica/exconvrt.c
+++ b/drivers/acpi/acpica/exconvrt.c
@@ -227,9 +227,8 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
 		/* Copy the integer to the buffer, LSB first */
 
 		new_buf = return_desc->buffer.pointer;
-		ACPI_MEMCPY(new_buf,
-			    &obj_desc->integer.value,
-			    acpi_gbl_integer_byte_width);
+		memcpy(new_buf,
+		       &obj_desc->integer.value, acpi_gbl_integer_byte_width);
 		break;
 
 	case ACPI_TYPE_STRING:
@@ -252,8 +251,8 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
 		/* Copy the string to the buffer */
 
 		new_buf = return_desc->buffer.pointer;
-		ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer,
-			     obj_desc->string.length);
+		strncpy((char *)new_buf, (char *)obj_desc->string.pointer,
+			obj_desc->string.length);
 		break;
 
 	default:
diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index c161dd974f74..61fd9c7b88bc 100644
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -428,7 +428,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 		}
 
 		buffer = buffer_desc->buffer.pointer;
-		ACPI_MEMCPY(buffer, source_desc->buffer.pointer, length);
+		memcpy(buffer, source_desc->buffer.pointer, length);
 
 		/* Lock entire transaction if requested */
 
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 725a3746a2df..70b7bbbb860b 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -416,22 +416,22 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
 			 * Copy the data from the source buffer.
 			 * Length is the field width in bytes.
 			 */
-			ACPI_MEMCPY(value,
-				    (obj_desc->buffer_field.buffer_obj)->buffer.
-				    pointer +
-				    obj_desc->buffer_field.base_byte_offset +
-				    field_datum_byte_offset,
-				    obj_desc->common_field.access_byte_width);
+			memcpy(value,
+			       (obj_desc->buffer_field.buffer_obj)->buffer.
+			       pointer +
+			       obj_desc->buffer_field.base_byte_offset +
+			       field_datum_byte_offset,
+			       obj_desc->common_field.access_byte_width);
 		} else {
 			/*
 			 * Copy the data to the target buffer.
 			 * Length is the field width in bytes.
 			 */
-			ACPI_MEMCPY((obj_desc->buffer_field.buffer_obj)->buffer.
-				    pointer +
-				    obj_desc->buffer_field.base_byte_offset +
-				    field_datum_byte_offset, value,
-				    obj_desc->common_field.access_byte_width);
+			memcpy((obj_desc->buffer_field.buffer_obj)->buffer.
+			       pointer +
+			       obj_desc->buffer_field.base_byte_offset +
+			       field_datum_byte_offset, value,
+			       obj_desc->common_field.access_byte_width);
 		}
 
 		status = AE_OK;
@@ -703,7 +703,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
 		return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
 	}
 
-	ACPI_MEMSET(buffer, 0, buffer_length);
+	memset(buffer, 0, buffer_length);
 	access_bit_width = ACPI_MUL_8(obj_desc->common_field.access_byte_width);
 
 	/* Handle the simple case here */
@@ -720,7 +720,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
 			status =
 			    acpi_ex_field_datum_io(obj_desc, 0, &raw_datum,
 						   ACPI_READ);
-			ACPI_MEMCPY(buffer, &raw_datum, buffer_length);
+			memcpy(buffer, &raw_datum, buffer_length);
 		}
 
 		return_ACPI_STATUS(status);
@@ -793,9 +793,9 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
 
 		/* Write merged datum to target buffer */
 
-		ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
-			    ACPI_MIN(obj_desc->common_field.access_byte_width,
-				     buffer_length - buffer_offset));
+		memcpy(((char *)buffer) + buffer_offset, &merged_datum,
+		       ACPI_MIN(obj_desc->common_field.access_byte_width,
+				buffer_length - buffer_offset));
 
 		buffer_offset += obj_desc->common_field.access_byte_width;
 		merged_datum =
@@ -811,9 +811,9 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
 
 	/* Write the last datum to the buffer */
 
-	ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
-		    ACPI_MIN(obj_desc->common_field.access_byte_width,
-			     buffer_length - buffer_offset));
+	memcpy(((char *)buffer) + buffer_offset, &merged_datum,
+	       ACPI_MIN(obj_desc->common_field.access_byte_width,
+			buffer_length - buffer_offset));
 
 	return_ACPI_STATUS(AE_OK);
 }
@@ -878,7 +878,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 		 * at Byte zero. All unused (upper) bytes of the
 		 * buffer will be 0.
 		 */
-		ACPI_MEMCPY((char *)new_buffer, (char *)buffer, buffer_length);
+		memcpy((char *)new_buffer, (char *)buffer, buffer_length);
 		buffer = new_buffer;
 		buffer_length = required_length;
 	}
@@ -918,9 +918,9 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 
 	/* Get initial Datum from the input buffer */
 
-	ACPI_MEMCPY(&raw_datum, buffer,
-		    ACPI_MIN(obj_desc->common_field.access_byte_width,
-			     buffer_length - buffer_offset));
+	memcpy(&raw_datum, buffer,
+	       ACPI_MIN(obj_desc->common_field.access_byte_width,
+			buffer_length - buffer_offset));
 
 	merged_datum =
 	    raw_datum << obj_desc->common_field.start_field_bit_offset;
@@ -970,9 +970,9 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 		/* Get the next input datum from the buffer */
 
 		buffer_offset += obj_desc->common_field.access_byte_width;
-		ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset,
-			    ACPI_MIN(obj_desc->common_field.access_byte_width,
-				     buffer_length - buffer_offset));
+		memcpy(&raw_datum, ((char *)buffer) + buffer_offset,
+		       ACPI_MIN(obj_desc->common_field.access_byte_width,
+				buffer_length - buffer_offset));
 
 		merged_datum |=
 		    raw_datum << obj_desc->common_field.start_field_bit_offset;
diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c
index b56fc9d6f48e..d02afece0f10 100644
--- a/drivers/acpi/acpica/exmisc.c
+++ b/drivers/acpi/acpica/exmisc.c
@@ -209,8 +209,8 @@ acpi_ex_concat_template(union acpi_operand_object *operand0,
 	 * end_tag descriptor is copied from Operand1.
 	 */
 	new_buf = return_desc->buffer.pointer;
-	ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0);
-	ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1);
+	memcpy(new_buf, operand0->buffer.pointer, length0);
+	memcpy(new_buf + length0, operand1->buffer.pointer, length1);
 
 	/* Insert end_tag and set the checksum to zero, means "ignore checksum" */
 
@@ -318,14 +318,14 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 
 		/* Copy the first integer, LSB first */
 
-		ACPI_MEMCPY(new_buf, &operand0->integer.value,
-			    acpi_gbl_integer_byte_width);
+		memcpy(new_buf, &operand0->integer.value,
+		       acpi_gbl_integer_byte_width);
 
 		/* Copy the second integer (LSB first) after the first */
 
-		ACPI_MEMCPY(new_buf + acpi_gbl_integer_byte_width,
-			    &local_operand1->integer.value,
-			    acpi_gbl_integer_byte_width);
+		memcpy(new_buf + acpi_gbl_integer_byte_width,
+		       &local_operand1->integer.value,
+		       acpi_gbl_integer_byte_width);
 		break;
 
 	case ACPI_TYPE_STRING:
@@ -346,9 +346,9 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 
 		/* Concatenate the strings */
 
-		ACPI_STRCPY(new_buf, operand0->string.pointer);
-		ACPI_STRCPY(new_buf + operand0->string.length,
-			    local_operand1->string.pointer);
+		strcpy(new_buf, operand0->string.pointer);
+		strcpy(new_buf + operand0->string.length,
+		       local_operand1->string.pointer);
 		break;
 
 	case ACPI_TYPE_BUFFER:
@@ -369,11 +369,11 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 
 		/* Concatenate the buffers */
 
-		ACPI_MEMCPY(new_buf, operand0->buffer.pointer,
-			    operand0->buffer.length);
-		ACPI_MEMCPY(new_buf + operand0->buffer.length,
-			    local_operand1->buffer.pointer,
-			    local_operand1->buffer.length);
+		memcpy(new_buf, operand0->buffer.pointer,
+		       operand0->buffer.length);
+		memcpy(new_buf + operand0->buffer.length,
+		       local_operand1->buffer.pointer,
+		       local_operand1->buffer.length);
 		break;
 
 	default:
@@ -660,9 +660,9 @@ acpi_ex_do_logical_op(u16 opcode,
 
 		/* Lexicographic compare: compare the data bytes */
 
-		compare = ACPI_MEMCMP(operand0->buffer.pointer,
-				      local_operand1->buffer.pointer,
-				      (length0 > length1) ? length1 : length0);
+		compare = memcmp(operand0->buffer.pointer,
+				 local_operand1->buffer.pointer,
+				 (length0 > length1) ? length1 : length0);
 
 		switch (opcode) {
 		case AML_LEQUAL_OP:	/* LEqual (Operand0, Operand1) */
diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c
index 453b00c30177..20e87813c7d7 100644
--- a/drivers/acpi/acpica/exnames.c
+++ b/drivers/acpi/acpica/exnames.c
@@ -192,7 +192,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
 		char_buf[4] = '\0';
 
 		if (name_string) {
-			ACPI_STRCAT(name_string, char_buf);
+			strcat(name_string, char_buf);
 			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
 					  "Appended to - %s\n", name_string));
 		} else {
diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c
index 6fac5e0a698a..b8944ebb1081 100644
--- a/drivers/acpi/acpica/exoparg2.c
+++ b/drivers/acpi/acpica/exoparg2.c
@@ -337,8 +337,8 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 		 * Copy the raw buffer data with no transform.
 		 * (NULL terminated already)
 		 */
-		ACPI_MEMCPY(return_desc->string.pointer,
-			    operand[0]->buffer.pointer, length);
+		memcpy(return_desc->string.pointer,
+		       operand[0]->buffer.pointer, length);
 		break;
 
 	case AML_CONCAT_RES_OP:
diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c
index 1c64a988cbee..fa100b3b92ee 100644
--- a/drivers/acpi/acpica/exoparg3.c
+++ b/drivers/acpi/acpica/exoparg3.c
@@ -237,8 +237,8 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 
 			/* We have a buffer, copy the portion requested */
 
-			ACPI_MEMCPY(buffer, operand[0]->string.pointer + index,
-				    length);
+			memcpy(buffer, operand[0]->string.pointer + index,
+			       length);
 		}
 
 		/* Set the length of the new String/Buffer */
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index f6c2f5499935..b4a5e44c00dd 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -517,15 +517,14 @@ acpi_ex_data_table_space_handler(u32 function,
 	switch (function) {
 	case ACPI_READ:
 
-		ACPI_MEMCPY(ACPI_CAST_PTR(char, value),
-			    ACPI_PHYSADDR_TO_PTR(address),
-			    ACPI_DIV_8(bit_width));
+		memcpy(ACPI_CAST_PTR(char, value),
+		       ACPI_PHYSADDR_TO_PTR(address), ACPI_DIV_8(bit_width));
 		break;
 
 	case ACPI_WRITE:
 
-		ACPI_MEMCPY(ACPI_PHYSADDR_TO_PTR(address),
-			    ACPI_CAST_PTR(char, value), ACPI_DIV_8(bit_width));
+		memcpy(ACPI_PHYSADDR_TO_PTR(address),
+		       ACPI_CAST_PTR(char, value), ACPI_DIV_8(bit_width));
 		break;
 
 	default:
diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c
index 6fa3c8d8fc5f..e1d4f4d51b97 100644
--- a/drivers/acpi/acpica/exstorob.c
+++ b/drivers/acpi/acpica/exstorob.c
@@ -100,9 +100,9 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
 
 		/* Clear existing buffer and copy in the new one */
 
-		ACPI_MEMSET(target_desc->buffer.pointer, 0,
-			    target_desc->buffer.length);
-		ACPI_MEMCPY(target_desc->buffer.pointer, buffer, length);
+		memset(target_desc->buffer.pointer, 0,
+		       target_desc->buffer.length);
+		memcpy(target_desc->buffer.pointer, buffer, length);
 
 #ifdef ACPI_OBSOLETE_BEHAVIOR
 		/*
@@ -129,8 +129,8 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
 	} else {
 		/* Truncate the source, copy only what will fit */
 
-		ACPI_MEMCPY(target_desc->buffer.pointer, buffer,
-			    target_desc->buffer.length);
+		memcpy(target_desc->buffer.pointer, buffer,
+		       target_desc->buffer.length);
 
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Truncating source buffer from %X to %X\n",
@@ -187,9 +187,9 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
 		 * String will fit in existing non-static buffer.
 		 * Clear old string and copy in the new one
 		 */
-		ACPI_MEMSET(target_desc->string.pointer, 0,
-			    (acpi_size) target_desc->string.length + 1);
-		ACPI_MEMCPY(target_desc->string.pointer, buffer, length);
+		memset(target_desc->string.pointer, 0,
+		       (acpi_size) target_desc->string.length + 1);
+		memcpy(target_desc->string.pointer, buffer, length);
 	} else {
 		/*
 		 * Free the current buffer, then allocate a new buffer
@@ -210,7 +210,7 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
 		}
 
 		target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
-		ACPI_MEMCPY(target_desc->string.pointer, buffer, length);
+		memcpy(target_desc->string.pointer, buffer, length);
 	}
 
 	/* Set the new target length */
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index 19ad0b5993d5..c687b9979fb2 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -102,7 +102,7 @@ acpi_status acpi_ns_root_initialize(void)
 
 		/* _OSI is optional for now, will be permanent later */
 
-		if (!ACPI_STRCMP(init_val->name, "_OSI")
+		if (!strcmp(init_val->name, "_OSI")
 		    && !acpi_gbl_create_osi_method) {
 			continue;
 		}
@@ -180,7 +180,7 @@ acpi_status acpi_ns_root_initialize(void)
 
 				/* Build an object around the static string */
 
-				obj_desc->string.length = (u32)ACPI_STRLEN(val);
+				obj_desc->string.length = (u32)strlen(val);
 				obj_desc->string.pointer = val;
 				obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
 				break;
@@ -203,7 +203,7 @@ acpi_status acpi_ns_root_initialize(void)
 
 				/* Special case for ACPI Global Lock */
 
-				if (ACPI_STRCMP(init_val->name, "_GL_") == 0) {
+				if (strcmp(init_val->name, "_GL_") == 0) {
 					acpi_gbl_global_lock_mutex = obj_desc;
 
 					/* Create additional counting semaphore for global lock */
diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c
index 1a8b39c8d969..da55a1c60da1 100644
--- a/drivers/acpi/acpica/nsconvert.c
+++ b/drivers/acpi/acpica/nsconvert.c
@@ -187,8 +187,8 @@ acpi_ns_convert_to_string(union acpi_operand_object *original_object,
 		 * Copy the raw buffer data with no transform. String is already NULL
 		 * terminated at Length+1.
 		 */
-		ACPI_MEMCPY(new_object->string.pointer,
-			    original_object->buffer.pointer, length);
+		memcpy(new_object->string.pointer,
+		       original_object->buffer.pointer, length);
 		break;
 
 	default:
@@ -251,9 +251,9 @@ acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 			return (AE_NO_MEMORY);
 		}
 
-		ACPI_MEMCPY(new_object->buffer.pointer,
-			    original_object->string.pointer,
-			    original_object->string.length);
+		memcpy(new_object->buffer.pointer,
+		       original_object->string.pointer,
+		       original_object->string.length);
 		break;
 
 	case ACPI_TYPE_PACKAGE:
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index d259393505fa..0f1daba640e7 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -101,7 +101,7 @@ void acpi_ns_print_pathname(u32 num_segments, char *pathname)
 
 	while (num_segments) {
 		for (i = 0; i < 4; i++) {
-			ACPI_IS_PRINT(pathname[i]) ?
+			isprint((int)pathname[i]) ?
 			    acpi_os_printf("%c", pathname[i]) :
 			    acpi_os_printf("?");
 		}
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index 7bcc68f57afa..a725d88b036b 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -440,7 +440,7 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj,
 
 	/* Initialize the evaluation information block */
 
-	ACPI_MEMSET(info, 0, sizeof(struct acpi_evaluate_info));
+	memset(info, 0, sizeof(struct acpi_evaluate_info));
 	info->prefix_node = parent_node;
 
 	/*
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 4a85c4517988..b744a53618eb 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -90,7 +90,7 @@ acpi_status acpi_ns_initialize_objects(void)
 
 	/* Set all init info to zero */
 
-	ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
+	memset(&info, 0, sizeof(struct acpi_init_walk_info));
 
 	/* Walk entire namespace from the supplied root */
 
@@ -566,7 +566,7 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
 	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
 			(ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI));
 
-	ACPI_MEMSET(info, 0, sizeof(struct acpi_evaluate_info));
+	memset(info, 0, sizeof(struct acpi_evaluate_info));
 	info->prefix_node = device_node;
 	info->relative_pathname = METHOD_NAME__INI;
 	info->parameters = NULL;
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index c30672d23878..0515a70f42a4 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -580,7 +580,7 @@ acpi_ns_repair_HID(struct acpi_evaluate_info *info,
 	 * # is a hex digit.
 	 */
 	for (dest = new_string->string.pointer; *source; dest++, source++) {
-		*dest = (char)ACPI_TOUPPER(*source);
+		*dest = (char)toupper((int)*source);
 	}
 
 	acpi_ut_remove_reference(return_object);
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 6ad02008c0c2..8d8104b8bd28 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -292,8 +292,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 			} else {
 				/* Convert the character to uppercase and save it */
 
-				result[i] =
-				    (char)ACPI_TOUPPER((int)*external_name);
+				result[i] = (char)toupper((int)*external_name);
 				external_name++;
 			}
 		}
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index b6030a2deee1..6ee1e52b903d 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -696,7 +696,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 			return (AE_CTRL_DEPTH);
 		}
 
-		no_match = ACPI_STRCMP(hid->string, info->hid);
+		no_match = strcmp(hid->string, info->hid);
 		ACPI_FREE(hid);
 
 		if (no_match) {
@@ -715,8 +715,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 
 			found = FALSE;
 			for (i = 0; i < cid->count; i++) {
-				if (ACPI_STRCMP(cid->ids[i].string, info->hid)
-				    == 0) {
+				if (strcmp(cid->ids[i].string, info->hid) == 0) {
 
 					/* Found a matching CID */
 
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index dc0836a9cf17..9ff643b9553f 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -114,7 +114,7 @@ acpi_get_handle(acpi_handle parent,
 
 		/* Special case for root-only, since we can't search for it */
 
-		if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) {
+		if (!strcmp(pathname, ACPI_NS_ROOT_PATH)) {
 			*ret_handle =
 			    ACPI_CAST_PTR(acpi_handle, acpi_gbl_root_node);
 			return (AE_OK);
@@ -242,7 +242,7 @@ static char *acpi_ns_copy_device_id(struct acpi_pnp_device_id *dest,
 
 	/* Copy actual string and return a pointer to the next string area */
 
-	ACPI_MEMCPY(string_area, source->string, source->length);
+	memcpy(string_area, source->string, source->length);
 	return (string_area + source->length);
 }
 
@@ -637,7 +637,7 @@ acpi_status acpi_install_method(u8 *buffer)
 
 	/* Copy the method AML to the local buffer */
 
-	ACPI_MEMCPY(aml_buffer, aml_start, aml_length);
+	memcpy(aml_buffer, aml_start, aml_length);
 
 	/* Initialize the method object with the new method's information */
 
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index 960505ab409a..32440912023a 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -93,10 +93,9 @@ void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode)
 	op->common.descriptor_type = ACPI_DESC_TYPE_PARSER;
 	op->common.aml_opcode = opcode;
 
-	ACPI_DISASM_ONLY_MEMBERS(ACPI_STRNCPY(op->common.aml_op_name,
-					      (acpi_ps_get_opcode_info
-					       (opcode))->name,
-					      sizeof(op->common.aml_op_name)));
+	ACPI_DISASM_ONLY_MEMBERS(strncpy(op->common.aml_op_name,
+					 (acpi_ps_get_opcode_info(opcode))->
+					 name, sizeof(op->common.aml_op_name)));
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index f30f35e6ff2a..3fa829e96c2a 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -353,13 +353,13 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 				/* +1 to include null terminator */
 
 				user_prt->length +=
-				    (u32)ACPI_STRLEN(user_prt->source) + 1;
+				    (u32)strlen(user_prt->source) + 1;
 				break;
 
 			case ACPI_TYPE_STRING:
 
-				ACPI_STRCPY(user_prt->source,
-					    obj_desc->string.pointer);
+				strcpy(user_prt->source,
+				       obj_desc->string.pointer);
 
 				/*
 				 * Add to the Length field the length of the string
diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c
index 1fe49d223663..ac37852e0821 100644
--- a/drivers/acpi/acpica/rsmisc.c
+++ b/drivers/acpi/acpica/rsmisc.c
@@ -119,7 +119,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			/*
 			 * Get the resource type and the initial (minimum) length
 			 */
-			ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
+			memset(resource, 0, INIT_RESOURCE_LENGTH(info));
 			resource->type = INIT_RESOURCE_TYPE(info);
 			resource->length = INIT_RESOURCE_LENGTH(info);
 			break;
@@ -324,13 +324,13 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 
 		case ACPI_RSC_SET8:
 
-			ACPI_MEMSET(destination, info->aml_offset, info->value);
+			memset(destination, info->aml_offset, info->value);
 			break;
 
 		case ACPI_RSC_DATA8:
 
 			target = ACPI_ADD_PTR(char, resource, info->value);
-			ACPI_MEMCPY(destination, source, ACPI_GET16(target));
+			memcpy(destination, source, ACPI_GET16(target));
 			break;
 
 		case ACPI_RSC_ADDRESS:
@@ -502,7 +502,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 		switch (info->opcode) {
 		case ACPI_RSC_INITSET:
 
-			ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
+			memset(aml, 0, INIT_RESOURCE_LENGTH(info));
 			aml_length = INIT_RESOURCE_LENGTH(info);
 			acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
 						    aml_length, aml);
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index 90417de38dab..52b024df0052 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -148,7 +148,7 @@ acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type)
 		case ACPI_RSC_MOVE_SERIAL_VEN:
 		case ACPI_RSC_MOVE_SERIAL_RES:
 
-			ACPI_MEMCPY(destination, source, item_count);
+			memcpy(destination, source, item_count);
 			return;
 
 			/*
@@ -364,12 +364,11 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length,
 		 * Zero the entire area of the buffer.
 		 */
 		total_length =
-		    (u32)
-		    ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
+		    (u32)strlen(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
 		    1;
 		total_length = (u32)ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
 
-		ACPI_MEMSET(resource_source->string_ptr, 0, total_length);
+		memset(resource_source->string_ptr, 0, total_length);
 
 		/* Copy the resource_source string to the destination */
 
@@ -432,8 +431,8 @@ acpi_rs_set_resource_source(union aml_resource * aml,
 
 		/* Copy the resource_source string */
 
-		ACPI_STRCPY(ACPI_CAST_PTR(char, &aml_resource_source[1]),
-			    resource_source->string_ptr);
+		strcpy(ACPI_CAST_PTR(char, &aml_resource_source[1]),
+		       resource_source->string_ptr);
 
 		/*
 		 * Add the length of the string (+ 1 for null terminator) to the
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 8e6276df0226..de51f836ef68 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -398,8 +398,8 @@ acpi_resource_to_address64(struct acpi_resource *resource,
 
 		/* Simple copy for 64 bit source */
 
-		ACPI_MEMCPY(out, &resource->data,
-			    sizeof(struct acpi_resource_address64));
+		memcpy(out, &resource->data,
+		       sizeof(struct acpi_resource_address64));
 		break;
 
 	default:
@@ -499,7 +499,7 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
 	 */
 	if ((vendor->byte_length < (ACPI_UUID_LENGTH + 1)) ||
 	    (vendor->uuid_subtype != info->uuid->subtype) ||
-	    (ACPI_MEMCMP(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) {
+	    (memcmp(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) {
 		return (AE_OK);
 	}
 
@@ -513,7 +513,7 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
 
 	/* Found the correct resource, copy and return it */
 
-	ACPI_MEMCPY(buffer->pointer, resource, resource->length);
+	memcpy(buffer->pointer, resource, resource->length);
 	buffer->length = resource->length;
 
 	/* Found the desired descriptor, terminate resource walk */
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
index d7f8386455bd..5c9d5abf1588 100644
--- a/drivers/acpi/acpica/tbdata.c
+++ b/drivers/acpi/acpica/tbdata.c
@@ -73,7 +73,7 @@ acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc,
 	 * Initialize the table descriptor. Set the pointer to NULL, since the
 	 * table is not fully mapped at this time.
 	 */
-	ACPI_MEMSET(table_desc, 0, sizeof(struct acpi_table_desc));
+	memset(table_desc, 0, sizeof(struct acpi_table_desc));
 	table_desc->address = address;
 	table_desc->length = table->length;
 	table_desc->flags = flags;
@@ -465,9 +465,9 @@ acpi_status acpi_tb_resize_root_table_list(void)
 	/* Copy and free the previous table array */
 
 	if (acpi_gbl_root_table_list.tables) {
-		ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
-			    (acpi_size) table_count *
-			    sizeof(struct acpi_table_desc));
+		memcpy(tables, acpi_gbl_root_table_list.tables,
+		       (acpi_size) table_count *
+		       sizeof(struct acpi_table_desc));
 
 		if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
 			ACPI_FREE(acpi_gbl_root_table_list.tables);
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 05be59c772c7..6253001b6375 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -398,12 +398,12 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
 
 	/* Clear the entire local FADT */
 
-	ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
+	memset(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
 
 	/* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */
 
-	ACPI_MEMCPY(&acpi_gbl_FADT, table,
-		    ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
+	memcpy(&acpi_gbl_FADT, table,
+	       ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
 
 	/* Take a copy of the Hardware Reduced flag */
 
diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c
index 0b879fcfef67..119c84ad9833 100644
--- a/drivers/acpi/acpica/tbfind.c
+++ b/drivers/acpi/acpica/tbfind.c
@@ -76,16 +76,16 @@ acpi_tb_find_table(char *signature,
 
 	/* Normalize the input strings */
 
-	ACPI_MEMSET(&header, 0, sizeof(struct acpi_table_header));
+	memset(&header, 0, sizeof(struct acpi_table_header));
 	ACPI_MOVE_NAME(header.signature, signature);
-	ACPI_STRNCPY(header.oem_id, oem_id, ACPI_OEM_ID_SIZE);
-	ACPI_STRNCPY(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE);
+	strncpy(header.oem_id, oem_id, ACPI_OEM_ID_SIZE);
+	strncpy(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE);
 
 	/* Search for the table */
 
 	for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
-		if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature),
-				header.signature, ACPI_NAME_SIZE)) {
+		if (memcmp(&(acpi_gbl_root_table_list.tables[i].signature),
+			   header.signature, ACPI_NAME_SIZE)) {
 
 			/* Not the requested table */
 
@@ -112,21 +112,20 @@ acpi_tb_find_table(char *signature,
 
 		/* Check for table match on all IDs */
 
-		if (!ACPI_MEMCMP
+		if (!memcmp
 		    (acpi_gbl_root_table_list.tables[i].pointer->signature,
 		     header.signature, ACPI_NAME_SIZE) && (!oem_id[0]
 							   ||
-							   !ACPI_MEMCMP
+							   !memcmp
 							   (acpi_gbl_root_table_list.
 							    tables[i].pointer->
 							    oem_id,
 							    header.oem_id,
 							    ACPI_OEM_ID_SIZE))
 		    && (!oem_table_id[0]
-			|| !ACPI_MEMCMP(acpi_gbl_root_table_list.tables[i].
-					pointer->oem_table_id,
-					header.oem_table_id,
-					ACPI_OEM_TABLE_ID_SIZE))) {
+			|| !memcmp(acpi_gbl_root_table_list.tables[i].pointer->
+				   oem_table_id, header.oem_table_id,
+				   ACPI_OEM_TABLE_ID_SIZE))) {
 			*table_index = i;
 
 			ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 008a251780f4..15ea98e0068d 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -87,8 +87,8 @@ acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index)
 	 * not just the header.
 	 */
 	is_identical = (u8)((table_desc->length != table_length ||
-			     ACPI_MEMCMP(table_desc->pointer, table,
-					 table_length)) ? FALSE : TRUE);
+			     memcmp(table_desc->pointer, table, table_length)) ?
+			    FALSE : TRUE);
 
 	/* Release the acquired table */
 
@@ -289,8 +289,7 @@ acpi_tb_install_standard_table(acpi_physical_address address,
 		if ((new_table_desc.signature.ascii[0] != 0x00) &&
 		    (!ACPI_COMPARE_NAME
 		     (&new_table_desc.signature, ACPI_SIG_SSDT))
-		    && (ACPI_STRNCMP(new_table_desc.signature.ascii, "OEM", 3)))
-		{
+		    && (strncmp(new_table_desc.signature.ascii, "OEM", 3))) {
 			ACPI_BIOS_ERROR((AE_INFO,
 					 "Table has invalid signature [%4.4s] (0x%8.8X), "
 					 "must be SSDT or OEMx",
diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c
index 77ba5c71c6e7..709d5112fc16 100644
--- a/drivers/acpi/acpica/tbprint.c
+++ b/drivers/acpi/acpica/tbprint.c
@@ -73,7 +73,7 @@ static void acpi_tb_fix_string(char *string, acpi_size length)
 {
 
 	while (length && *string) {
-		if (!ACPI_IS_PRINT(*string)) {
+		if (!isprint((int)*string)) {
 			*string = '?';
 		}
 		string++;
@@ -100,7 +100,7 @@ acpi_tb_cleanup_table_header(struct acpi_table_header *out_header,
 			     struct acpi_table_header *header)
 {
 
-	ACPI_MEMCPY(out_header, header, sizeof(struct acpi_table_header));
+	memcpy(out_header, header, sizeof(struct acpi_table_header));
 
 	acpi_tb_fix_string(out_header->signature, ACPI_NAME_SIZE);
 	acpi_tb_fix_string(out_header->oem_id, ACPI_OEM_ID_SIZE);
@@ -138,9 +138,9 @@ acpi_tb_print_table_header(acpi_physical_address address,
 
 		/* RSDP has no common fields */
 
-		ACPI_MEMCPY(local_header.oem_id,
-			    ACPI_CAST_PTR(struct acpi_table_rsdp,
-					  header)->oem_id, ACPI_OEM_ID_SIZE);
+		memcpy(local_header.oem_id,
+		       ACPI_CAST_PTR(struct acpi_table_rsdp, header)->oem_id,
+		       ACPI_OEM_ID_SIZE);
 		acpi_tb_fix_string(local_header.oem_id, ACPI_OEM_ID_SIZE);
 
 		ACPI_INFO((AE_INFO, "RSDP 0x%8.8X%8.8X %06X (v%.2d %-6.6s)",
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 2bb6a117c840..568ac0e4a3c6 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -188,7 +188,7 @@ struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index)
 		return (NULL);
 	}
 
-	ACPI_MEMCPY(new_table, table_desc->pointer, table_desc->length);
+	memcpy(new_table, table_desc->pointer, table_desc->length);
 	acpi_tb_uninstall_table(table_desc);
 
 	acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list.
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 54b9f7957ff1..5559e2c70b15 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -119,9 +119,9 @@ acpi_initialize_tables(struct acpi_table_desc * initial_table_array,
 	} else {
 		/* Root Table Array has been statically allocated by the host */
 
-		ACPI_MEMSET(initial_table_array, 0,
-			    (acpi_size) initial_table_count *
-			    sizeof(struct acpi_table_desc));
+		memset(initial_table_array, 0,
+		       (acpi_size) initial_table_count *
+		       sizeof(struct acpi_table_desc));
 
 		acpi_gbl_root_table_list.tables = initial_table_array;
 		acpi_gbl_root_table_list.max_table_count = initial_table_count;
@@ -243,8 +243,8 @@ acpi_get_table_header(char *signature,
 					return (AE_NO_MEMORY);
 				}
 
-				ACPI_MEMCPY(out_table_header, header,
-					    sizeof(struct acpi_table_header));
+				memcpy(out_table_header, header,
+				       sizeof(struct acpi_table_header));
 				acpi_os_unmap_memory(header,
 						     sizeof(struct
 							    acpi_table_header));
@@ -252,9 +252,9 @@ acpi_get_table_header(char *signature,
 				return (AE_NOT_FOUND);
 			}
 		} else {
-			ACPI_MEMCPY(out_table_header,
-				    acpi_gbl_root_table_list.tables[i].pointer,
-				    sizeof(struct acpi_table_header));
+			memcpy(out_table_header,
+			       acpi_gbl_root_table_list.tables[i].pointer,
+			       sizeof(struct acpi_table_header));
 		}
 		return (AE_OK);
 	}
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index cf56e18cdc64..9682d40ca6ff 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -150,8 +150,8 @@ static acpi_status acpi_tb_load_namespace(void)
 	 * Save the original DSDT header for detection of table corruption
 	 * and/or replacement of the DSDT from outside the OS.
 	 */
-	ACPI_MEMCPY(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT,
-		    sizeof(struct acpi_table_header));
+	memcpy(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT,
+	       sizeof(struct acpi_table_header));
 
 	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 
diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
index 61d8f6d186d1..7a4101f0685e 100644
--- a/drivers/acpi/acpica/utalloc.c
+++ b/drivers/acpi/acpica/utalloc.c
@@ -73,7 +73,7 @@ void *acpi_os_allocate_zeroed(acpi_size size)
 
 		/* Clear the memory block */
 
-		ACPI_MEMSET(allocation, 0, size);
+		memset(allocation, 0, size);
 	}
 
 	return (allocation);
@@ -181,7 +181,7 @@ acpi_status acpi_ut_delete_caches(void)
 	char buffer[7];
 
 	if (acpi_gbl_display_final_mem_stats) {
-		ACPI_STRCPY(buffer, "MEMORY");
+		strcpy(buffer, "MEMORY");
 		(void)acpi_db_display_statistics(buffer);
 	}
 #endif
@@ -337,6 +337,6 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
 
 	/* Have a valid buffer, clear it */
 
-	ACPI_MEMSET(buffer->pointer, 0, required_length);
+	memset(buffer->pointer, 0, required_length);
 	return (AE_OK);
 }
diff --git a/drivers/acpi/acpica/utbuffer.c b/drivers/acpi/acpica/utbuffer.c
index a8c39643e618..01c8709ca586 100644
--- a/drivers/acpi/acpica/utbuffer.c
+++ b/drivers/acpi/acpica/utbuffer.c
@@ -159,7 +159,7 @@ void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
 			}
 
 			buf_char = buffer[(acpi_size) i + j];
-			if (ACPI_IS_PRINT(buf_char)) {
+			if (isprint(buf_char)) {
 				acpi_os_printf("%c", buf_char);
 			} else {
 				acpi_os_printf(".");
@@ -319,7 +319,7 @@ acpi_ut_dump_buffer_to_file(ACPI_FILE file,
 			}
 
 			buf_char = buffer[(acpi_size) i + j];
-			if (ACPI_IS_PRINT(buf_char)) {
+			if (isprint(buf_char)) {
 				acpi_ut_file_printf(file, "%c", buf_char);
 			} else {
 				acpi_ut_file_printf(file, ".");
diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c
index eacc5eee362e..0d21fbd99363 100644
--- a/drivers/acpi/acpica/utcache.c
+++ b/drivers/acpi/acpica/utcache.c
@@ -84,7 +84,7 @@ acpi_os_create_cache(char *cache_name,
 
 	/* Populate the cache object and return it */
 
-	ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
+	memset(cache, 0, sizeof(struct acpi_memory_list));
 	cache->list_name = cache_name;
 	cache->object_size = object_size;
 	cache->max_depth = max_depth;
@@ -212,7 +212,7 @@ acpi_os_release_object(struct acpi_memory_list * cache, void *object)
 
 		/* Mark the object as cached */
 
-		ACPI_MEMSET(object, 0xCA, cache->object_size);
+		memset(object, 0xCA, cache->object_size);
 		ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_CACHED);
 
 		/* Put the object at the head of the cache list */
@@ -281,7 +281,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache)
 
 		/* Clear (zero) the previously used Object */
 
-		ACPI_MEMSET(object, 0, cache->object_size);
+		memset(object, 0, cache->object_size);
 	} else {
 		/* The cache is empty, create a new object */
 
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index c37ec5035f4c..257221d452c8 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -129,7 +129,7 @@ acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
 
 	/* Always clear the external object */
 
-	ACPI_MEMSET(external_object, 0, sizeof(union acpi_object));
+	memset(external_object, 0, sizeof(union acpi_object));
 
 	/*
 	 * In general, the external object will be the same type as
@@ -149,9 +149,9 @@ acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
 								  string.
 								  length + 1);
 
-		ACPI_MEMCPY((void *)data_space,
-			    (void *)internal_object->string.pointer,
-			    (acpi_size) internal_object->string.length + 1);
+		memcpy((void *)data_space,
+		       (void *)internal_object->string.pointer,
+		       (acpi_size) internal_object->string.length + 1);
 		break;
 
 	case ACPI_TYPE_BUFFER:
@@ -162,9 +162,9 @@ acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
 		    ACPI_ROUND_UP_TO_NATIVE_WORD(internal_object->string.
 						 length);
 
-		ACPI_MEMCPY((void *)data_space,
-			    (void *)internal_object->buffer.pointer,
-			    internal_object->buffer.length);
+		memcpy((void *)data_space,
+		       (void *)internal_object->buffer.pointer,
+		       internal_object->buffer.length);
 		break;
 
 	case ACPI_TYPE_INTEGER:
@@ -502,9 +502,9 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
 			goto error_exit;
 		}
 
-		ACPI_MEMCPY(internal_object->string.pointer,
-			    external_object->string.pointer,
-			    external_object->string.length);
+		memcpy(internal_object->string.pointer,
+		       external_object->string.pointer,
+		       external_object->string.length);
 
 		internal_object->string.length = external_object->string.length;
 		break;
@@ -517,9 +517,9 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
 			goto error_exit;
 		}
 
-		ACPI_MEMCPY(internal_object->buffer.pointer,
-			    external_object->buffer.pointer,
-			    external_object->buffer.length);
+		memcpy(internal_object->buffer.pointer,
+		       external_object->buffer.pointer,
+		       external_object->buffer.length);
 
 		internal_object->buffer.length = external_object->buffer.length;
 
@@ -694,8 +694,8 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
 		copy_size = sizeof(struct acpi_namespace_node);
 	}
 
-	ACPI_MEMCPY(ACPI_CAST_PTR(char, dest_desc),
-		    ACPI_CAST_PTR(char, source_desc), copy_size);
+	memcpy(ACPI_CAST_PTR(char, dest_desc),
+	       ACPI_CAST_PTR(char, source_desc), copy_size);
 
 	/* Restore the saved fields */
 
@@ -725,9 +725,9 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
 
 			/* Copy the actual buffer data */
 
-			ACPI_MEMCPY(dest_desc->buffer.pointer,
-				    source_desc->buffer.pointer,
-				    source_desc->buffer.length);
+			memcpy(dest_desc->buffer.pointer,
+			       source_desc->buffer.pointer,
+			       source_desc->buffer.length);
 		}
 		break;
 
@@ -747,9 +747,9 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
 
 			/* Copy the actual string data */
 
-			ACPI_MEMCPY(dest_desc->string.pointer,
-				    source_desc->string.pointer,
-				    (acpi_size) source_desc->string.length + 1);
+			memcpy(dest_desc->string.pointer,
+			       source_desc->string.pointer,
+			       (acpi_size) source_desc->string.length + 1);
 		}
 		break;
 
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index 3afe07f19b9f..7956df1e263c 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -111,7 +111,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
 	if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
 		acpi_ex_eisa_id_to_string(hid->string, obj_desc->integer.value);
 	} else {
-		ACPI_STRCPY(hid->string, obj_desc->string.pointer);
+		strcpy(hid->string, obj_desc->string.pointer);
 	}
 
 	hid->length = length;
@@ -180,7 +180,7 @@ acpi_ut_execute_SUB(struct acpi_namespace_node *device_node,
 
 	/* Simply copy existing string */
 
-	ACPI_STRCPY(sub->string, obj_desc->string.pointer);
+	strcpy(sub->string, obj_desc->string.pointer);
 	sub->length = length;
 	*return_id = sub;
 
@@ -256,7 +256,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
 	if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
 		acpi_ex_integer_to_string(uid->string, obj_desc->integer.value);
 	} else {
-		ACPI_STRCPY(uid->string, obj_desc->string.pointer);
+		strcpy(uid->string, obj_desc->string.pointer);
 	}
 
 	uid->length = length;
@@ -393,8 +393,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
 
 			/* Copy the String CID from the returned object */
 
-			ACPI_STRCPY(next_id_string,
-				    cid_objects[i]->string.pointer);
+			strcpy(next_id_string, cid_objects[i]->string.pointer);
 			length = cid_objects[i]->string.length + 1;
 		}
 
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index 28099e230008..71b66537f826 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -66,9 +66,9 @@ u8 acpi_ut_is_pci_root_bridge(char *id)
 	 * Check if this is a PCI root bridge.
 	 * ACPI 3.0+: check for a PCI Express root also.
 	 */
-	if (!(ACPI_STRCMP(id,
-			  PCI_ROOT_HID_STRING)) ||
-	    !(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) {
+	if (!(strcmp(id,
+		     PCI_ROOT_HID_STRING)) ||
+	    !(strcmp(id, PCI_EXPRESS_ROOT_HID_STRING))) {
 		return (TRUE);
 	}
 
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 44035abdbf29..8f3d203aed79 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -232,8 +232,7 @@ acpi_status acpi_ut_install_interface(acpi_string interface_name)
 		return (AE_NO_MEMORY);
 	}
 
-	interface_info->name =
-	    ACPI_ALLOCATE_ZEROED(ACPI_STRLEN(interface_name) + 1);
+	interface_info->name = ACPI_ALLOCATE_ZEROED(strlen(interface_name) + 1);
 	if (!interface_info->name) {
 		ACPI_FREE(interface_info);
 		return (AE_NO_MEMORY);
@@ -241,7 +240,7 @@ acpi_status acpi_ut_install_interface(acpi_string interface_name)
 
 	/* Initialize new info and insert at the head of the global list */
 
-	ACPI_STRCPY(interface_info->name, interface_name);
+	strcpy(interface_info->name, interface_name);
 	interface_info->flags = ACPI_OSI_DYNAMIC;
 	interface_info->next = acpi_gbl_supported_interfaces;
 
@@ -269,7 +268,7 @@ acpi_status acpi_ut_remove_interface(acpi_string interface_name)
 
 	previous_interface = next_interface = acpi_gbl_supported_interfaces;
 	while (next_interface) {
-		if (!ACPI_STRCMP(interface_name, next_interface->name)) {
+		if (!strcmp(interface_name, next_interface->name)) {
 
 			/* Found: name is in either the static list or was added at runtime */
 
@@ -373,7 +372,7 @@ struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name)
 
 	next_interface = acpi_gbl_supported_interfaces;
 	while (next_interface) {
-		if (!ACPI_STRCMP(interface_name, next_interface->name)) {
+		if (!strcmp(interface_name, next_interface->name)) {
 			return (next_interface);
 		}
 
diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c
index 29e449935a82..97898ed71b4b 100644
--- a/drivers/acpi/acpica/utpredef.c
+++ b/drivers/acpi/acpica/utpredef.c
@@ -148,7 +148,7 @@ void acpi_ut_get_expected_return_types(char *buffer, u32 expected_btypes)
 	u32 j;
 
 	if (!expected_btypes) {
-		ACPI_STRCPY(buffer, "NONE");
+		strcpy(buffer, "NONE");
 		return;
 	}
 
@@ -161,7 +161,7 @@ void acpi_ut_get_expected_return_types(char *buffer, u32 expected_btypes)
 		/* If one of the expected types, concatenate the name of this type */
 
 		if (expected_btypes & this_rtype) {
-			ACPI_STRCAT(buffer, &ut_rtype_names[i][j]);
+			strcat(buffer, &ut_rtype_names[i][j]);
 			j = 0;	/* Use name separator from now on */
 		}
 
diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
index 2be6bd4bdc09..b26297c5de49 100644
--- a/drivers/acpi/acpica/utprint.c
+++ b/drivers/acpi/acpica/utprint.c
@@ -180,7 +180,7 @@ const char *acpi_ut_scan_number(const char *string, u64 *number_ptr)
 {
 	u64 number = 0;
 
-	while (ACPI_IS_DIGIT(*string)) {
+	while (isdigit((int)*string)) {
 		number *= 10;
 		number += *(string++) - '0';
 	}
@@ -405,7 +405,7 @@ acpi_ut_vsnprintf(char *string,
 		/* Process width */
 
 		width = -1;
-		if (ACPI_IS_DIGIT(*format)) {
+		if (isdigit((int)*format)) {
 			format = acpi_ut_scan_number(format, &number);
 			width = (s32) number;
 		} else if (*format == '*') {
@@ -422,7 +422,7 @@ acpi_ut_vsnprintf(char *string,
 		precision = -1;
 		if (*format == '.') {
 			++format;
-			if (ACPI_IS_DIGIT(*format)) {
+			if (isdigit((int)*format)) {
 				format = acpi_ut_scan_number(format, &number);
 				precision = (s32) number;
 			} else if (*format == '*') {
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index 83b6c52490dc..8f3c883dfe0e 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -79,7 +79,7 @@ void acpi_ut_strlwr(char *src_string)
 	/* Walk entire string, lowercasing the letters */
 
 	for (string = src_string; *string; string++) {
-		*string = (char)ACPI_TOLOWER(*string);
+		*string = (char)tolower((int)*string);
 	}
 
 	return;
@@ -145,7 +145,7 @@ void acpi_ut_strupr(char *src_string)
 	/* Walk entire string, uppercasing the letters */
 
 	for (string = src_string; *string; string++) {
-		*string = (char)ACPI_TOUPPER(*string);
+		*string = (char)toupper((int)*string);
 	}
 
 	return;
@@ -202,7 +202,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
 
 	/* Skip over any white space in the buffer */
 
-	while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) {
+	while ((*string) && (isspace((int)*string) || *string == '\t')) {
 		string++;
 	}
 
@@ -211,7 +211,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
 		 * Base equal to ACPI_ANY_BASE means 'ToInteger operation case'.
 		 * We need to determine if it is decimal or hexadecimal.
 		 */
-		if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
+		if ((*string == '0') && (tolower((int)*(string + 1)) == 'x')) {
 			sign_of0x = 1;
 			base = 16;
 
@@ -224,7 +224,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
 
 	/* Any string left? Check that '0x' is not followed by white space. */
 
-	if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') {
+	if (!(*string) || isspace((int)*string) || *string == '\t') {
 		if (to_integer_op) {
 			goto error_exit;
 		} else {
@@ -241,7 +241,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
 	/* Main loop: convert the string to a 32- or 64-bit integer */
 
 	while (*string) {
-		if (ACPI_IS_DIGIT(*string)) {
+		if (isdigit((int)*string)) {
 
 			/* Convert ASCII 0-9 to Decimal value */
 
@@ -252,8 +252,8 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
 
 			term = 1;
 		} else {
-			this_digit = (u8)ACPI_TOUPPER(*string);
-			if (ACPI_IS_XDIGIT((char)this_digit)) {
+			this_digit = (u8)toupper((int)*string);
+			if (isxdigit((int)this_digit)) {
 
 				/* Convert ASCII Hex char to value */
 
@@ -404,7 +404,7 @@ void acpi_ut_print_string(char *string, u16 max_length)
 
 			/* Check for printable character or hex escape */
 
-			if (ACPI_IS_PRINT(string[i])) {
+			if (isprint((int)string[i])) {
 				/* This is a normal character */
 
 				acpi_os_printf("%c", (int)string[i]);
@@ -609,22 +609,22 @@ void ut_convert_backslashes(char *pathname)
 u8 acpi_ut_safe_strcpy(char *dest, acpi_size dest_size, char *source)
 {
 
-	if (ACPI_STRLEN(source) >= dest_size) {
+	if (strlen(source) >= dest_size) {
 		return (TRUE);
 	}
 
-	ACPI_STRCPY(dest, source);
+	strcpy(dest, source);
 	return (FALSE);
 }
 
 u8 acpi_ut_safe_strcat(char *dest, acpi_size dest_size, char *source)
 {
 
-	if ((ACPI_STRLEN(dest) + ACPI_STRLEN(source)) >= dest_size) {
+	if ((strlen(dest) + strlen(source)) >= dest_size) {
 		return (TRUE);
 	}
 
-	ACPI_STRCAT(dest, source);
+	strcat(dest, source);
 	return (FALSE);
 }
 
@@ -635,14 +635,13 @@ acpi_ut_safe_strncat(char *dest,
 {
 	acpi_size actual_transfer_length;
 
-	actual_transfer_length =
-	    ACPI_MIN(max_transfer_length, ACPI_STRLEN(source));
+	actual_transfer_length = ACPI_MIN(max_transfer_length, strlen(source));
 
-	if ((ACPI_STRLEN(dest) + actual_transfer_length) >= dest_size) {
+	if ((strlen(dest) + actual_transfer_length) >= dest_size) {
 		return (TRUE);
 	}
 
-	ACPI_STRNCAT(dest, source, max_transfer_length);
+	strncat(dest, source, max_transfer_length);
 	return (FALSE);
 }
 #endif
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 130dd9f96f0f..9a7dc8196a5d 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -100,7 +100,7 @@ acpi_ut_create_list(char *list_name,
 		return (AE_NO_MEMORY);
 	}
 
-	ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
+	memset(cache, 0, sizeof(struct acpi_memory_list));
 
 	cache->list_name = list_name;
 	cache->object_size = object_size;
@@ -402,7 +402,7 @@ acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation,
 	allocation->component = component;
 	allocation->line = line;
 
-	ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME);
+	strncpy(allocation->module, module, ACPI_MAX_MODULE_NAME);
 	allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0;
 
 	if (!element) {
@@ -497,7 +497,7 @@ acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation,
 
 	/* Mark the segment as deleted */
 
-	ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size);
+	memset(&allocation->user_space, 0xEA, allocation->size);
 
 	status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
 	return (status);
@@ -595,7 +595,7 @@ void acpi_ut_dump_allocations(u32 component, const char *module)
 	while (element) {
 		if ((element->component & component) &&
 		    ((module == NULL)
-		     || (0 == ACPI_STRCMP(module, element->module)))) {
+		     || (0 == strcmp(module, element->module)))) {
 			descriptor =
 			    ACPI_CAST_PTR(union acpi_descriptor,
 					  &element->user_space);
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 0929187bdce0..51cf52d52243 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -234,8 +234,8 @@ acpi_status acpi_get_statistics(struct acpi_statistics *stats)
 	stats->sci_count = acpi_sci_count;
 	stats->gpe_count = acpi_gpe_count;
 
-	ACPI_MEMCPY(stats->fixed_event_count, acpi_fixed_event_count,
-		    sizeof(acpi_fixed_event_count));
+	memcpy(stats->fixed_event_count, acpi_fixed_event_count,
+	       sizeof(acpi_fixed_event_count));
 
 	/* Other counters */
 
@@ -322,7 +322,7 @@ acpi_status acpi_install_interface(acpi_string interface_name)
 
 	/* Parameter validation */
 
-	if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
+	if (!interface_name || (strlen(interface_name) == 0)) {
 		return (AE_BAD_PARAMETER);
 	}
 
@@ -374,7 +374,7 @@ acpi_status acpi_remove_interface(acpi_string interface_name)
 
 	/* Parameter validation */
 
-	if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
+	if (!interface_name || (strlen(interface_name) == 0)) {
 		return (AE_BAD_PARAMETER);
 	}
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index d791b986002a..c2a41d223162 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -542,14 +542,14 @@ typedef u64 acpi_integer;
 #define ACPI_COMPARE_NAME(a,b)          (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b)))
 #define ACPI_MOVE_NAME(dest,src)        (*ACPI_CAST_PTR (u32, (dest)) = *ACPI_CAST_PTR (u32, (src)))
 #else
-#define ACPI_COMPARE_NAME(a,b)          (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE))
-#define ACPI_MOVE_NAME(dest,src)        (ACPI_STRNCPY (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAME_SIZE))
+#define ACPI_COMPARE_NAME(a,b)          (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE))
+#define ACPI_MOVE_NAME(dest,src)        (strncpy (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAME_SIZE))
 #endif
 
 /* Support for the special RSDP signature (8 characters) */
 
-#define ACPI_VALIDATE_RSDP_SIG(a)       (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
-#define ACPI_MAKE_RSDP_SIG(dest)        (ACPI_MEMCPY (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
+#define ACPI_VALIDATE_RSDP_SIG(a)       (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
+#define ACPI_MAKE_RSDP_SIG(dest)        (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
 
 /*******************************************************************************
  *
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index 1e84e62b448d..3cedd43943f4 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -346,28 +346,6 @@
 
 /* We will be linking to the standard Clib functions */
 
-#define ACPI_STRSTR(s1,s2)      strstr((s1), (s2))
-#define ACPI_STRCHR(s1,c)       strchr((s1), (c))
-#define ACPI_STRLEN(s)          (acpi_size) strlen((s))
-#define ACPI_STRCPY(d,s)        (void) strcpy((d), (s))
-#define ACPI_STRNCPY(d,s,n)     (void) strncpy((d), (s), (acpi_size)(n))
-#define ACPI_STRNCMP(d,s,n)     strncmp((d), (s), (acpi_size)(n))
-#define ACPI_STRCMP(d,s)        strcmp((d), (s))
-#define ACPI_STRCAT(d,s)        (void) strcat((d), (s))
-#define ACPI_STRNCAT(d,s,n)     strncat((d), (s), (acpi_size)(n))
-#define ACPI_STRTOUL(d,s,n)     strtoul((d), (s), (acpi_size)(n))
-#define ACPI_MEMCMP(s1,s2,n)    memcmp((const char *)(s1), (const char *)(s2), (acpi_size)(n))
-#define ACPI_MEMCPY(d,s,n)      (void) memcpy((d), (s), (acpi_size)(n))
-#define ACPI_MEMSET(d,s,n)      (void) memset((d), (s), (acpi_size)(n))
-#define ACPI_TOUPPER(i)         toupper((int) (i))
-#define ACPI_TOLOWER(i)         tolower((int) (i))
-#define ACPI_IS_XDIGIT(i)       isxdigit((int) (i))
-#define ACPI_IS_DIGIT(i)        isdigit((int) (i))
-#define ACPI_IS_SPACE(i)        isspace((int) (i))
-#define ACPI_IS_UPPER(i)        isupper((int) (i))
-#define ACPI_IS_PRINT(i)        isprint((int) (i))
-#define ACPI_IS_ALPHA(i)        isalpha((int) (i))
-
 #else
 
 /******************************************************************************
@@ -405,22 +383,6 @@ typedef char *va_list;
 
 /* Use the local (ACPICA) definitions of the clib functions */
 
-#define ACPI_STRSTR(s1,s2)      acpi_ut_strstr ((s1), (s2))
-#define ACPI_STRCHR(s1,c)       acpi_ut_strchr ((s1), (c))
-#define ACPI_STRLEN(s)          (acpi_size) acpi_ut_strlen ((s))
-#define ACPI_STRCPY(d,s)        (void) acpi_ut_strcpy ((d), (s))
-#define ACPI_STRNCPY(d,s,n)     (void) acpi_ut_strncpy ((d), (s), (acpi_size)(n))
-#define ACPI_STRNCMP(d,s,n)     acpi_ut_strncmp ((d), (s), (acpi_size)(n))
-#define ACPI_STRCMP(d,s)        acpi_ut_strcmp ((d), (s))
-#define ACPI_STRCAT(d,s)        (void) acpi_ut_strcat ((d), (s))
-#define ACPI_STRNCAT(d,s,n)     acpi_ut_strncat ((d), (s), (acpi_size)(n))
-#define ACPI_STRTOUL(d,s,n)     acpi_ut_strtoul ((d), (s), (acpi_size)(n))
-#define ACPI_MEMCMP(s1,s2,n)    acpi_ut_memcmp((const char *)(s1), (const char *)(s2), (acpi_size)(n))
-#define ACPI_MEMCPY(d,s,n)      (void) acpi_ut_memcpy ((d), (s), (acpi_size)(n))
-#define ACPI_MEMSET(d,v,n)      (void) acpi_ut_memset ((d), (v), (acpi_size)(n))
-#define ACPI_TOUPPER(c)         acpi_ut_to_upper ((int) (c))
-#define ACPI_TOLOWER(c)         acpi_ut_to_lower ((int) (c))
-
 #endif				/* ACPI_USE_SYSTEM_CLIBRARY */
 
 #ifndef ACPI_FILE
diff --git a/tools/power/acpi/common/getopt.c b/tools/power/acpi/common/getopt.c
index 5da129e10aa2..326e826a5d20 100644
--- a/tools/power/acpi/common/getopt.c
+++ b/tools/power/acpi/common/getopt.c
@@ -127,7 +127,7 @@ int acpi_getopt(int argc, char **argv, char *opts)
 		    argv[acpi_gbl_optind][0] != '-' ||
 		    argv[acpi_gbl_optind][1] == '\0') {
 			return (ACPI_OPT_END);
-		} else if (ACPI_STRCMP(argv[acpi_gbl_optind], "--") == 0) {
+		} else if (strcmp(argv[acpi_gbl_optind], "--") == 0) {
 			acpi_gbl_optind++;
 			return (ACPI_OPT_END);
 		}
@@ -140,7 +140,7 @@ int acpi_getopt(int argc, char **argv, char *opts)
 	/* Make sure that the option is legal */
 
 	if (current_char == ':' ||
-	    (opts_ptr = ACPI_STRCHR(opts, current_char)) == NULL) {
+	    (opts_ptr = strchr(opts, current_char)) == NULL) {
 		ACPI_OPTION_ERROR("Illegal option: -", current_char);
 
 		if (argv[acpi_gbl_optind][++current_char_ptr] == '\0') {
diff --git a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
index 3aff9a2c7088..dd5008b0617a 100644
--- a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
+++ b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
@@ -222,7 +222,7 @@ acpi_os_get_table_by_address(acpi_physical_address address,
 		goto exit;
 	}
 
-	ACPI_MEMCPY(local_table, mapped_table, table_length);
+	memcpy(local_table, mapped_table, table_length);
 
 exit:
 	osl_unmap_table(mapped_table);
@@ -531,7 +531,7 @@ static acpi_status osl_load_rsdp(void)
 	gbl_rsdp_address =
 	    rsdp_base + (ACPI_CAST8(mapped_table) - rsdp_address);
 
-	ACPI_MEMCPY(&gbl_rsdp, mapped_table, sizeof(struct acpi_table_rsdp));
+	memcpy(&gbl_rsdp, mapped_table, sizeof(struct acpi_table_rsdp));
 	acpi_os_unmap_memory(rsdp_address, rsdp_size);
 
 	return (AE_OK);
@@ -964,7 +964,7 @@ osl_get_bios_table(char *signature,
 		goto exit;
 	}
 
-	ACPI_MEMCPY(local_table, mapped_table, table_length);
+	memcpy(local_table, mapped_table, table_length);
 	*address = table_address;
 	*table = local_table;
 
diff --git a/tools/power/acpi/tools/acpidump/apdump.c b/tools/power/acpi/tools/acpidump/apdump.c
index c736adf5fb55..61d0de804b70 100644
--- a/tools/power/acpi/tools/acpidump/apdump.c
+++ b/tools/power/acpi/tools/acpidump/apdump.c
@@ -329,7 +329,7 @@ int ap_dump_table_by_name(char *signature)
 	acpi_status status;
 	int table_status;
 
-	if (ACPI_STRLEN(signature) != ACPI_NAME_SIZE) {
+	if (strlen(signature) != ACPI_NAME_SIZE) {
 		acpi_log_error
 		    ("Invalid table signature [%s]: must be exactly 4 characters\n",
 		     signature);
@@ -338,15 +338,15 @@ int ap_dump_table_by_name(char *signature)
 
 	/* Table signatures are expected to be uppercase */
 
-	ACPI_STRCPY(local_signature, signature);
+	strcpy(local_signature, signature);
 	acpi_ut_strupr(local_signature);
 
 	/* To be friendly, handle tables whose signatures do not match the name */
 
 	if (ACPI_COMPARE_NAME(local_signature, "FADT")) {
-		ACPI_STRCPY(local_signature, ACPI_SIG_FADT);
+		strcpy(local_signature, ACPI_SIG_FADT);
 	} else if (ACPI_COMPARE_NAME(local_signature, "MADT")) {
-		ACPI_STRCPY(local_signature, ACPI_SIG_MADT);
+		strcpy(local_signature, ACPI_SIG_MADT);
 	}
 
 	/* Dump all instances of this signature (to handle multiple SSDTs) */
diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c
index 8f2fe168228e..a37f9702b2a9 100644
--- a/tools/power/acpi/tools/acpidump/apfiles.c
+++ b/tools/power/acpi/tools/acpidump/apfiles.c
@@ -136,10 +136,10 @@ int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
 	} else {
 		ACPI_MOVE_NAME(filename, table->signature);
 	}
-	filename[0] = (char)ACPI_TOLOWER(filename[0]);
-	filename[1] = (char)ACPI_TOLOWER(filename[1]);
-	filename[2] = (char)ACPI_TOLOWER(filename[2]);
-	filename[3] = (char)ACPI_TOLOWER(filename[3]);
+	filename[0] = (char)tolower((int)filename[0]);
+	filename[1] = (char)tolower((int)filename[1]);
+	filename[2] = (char)tolower((int)filename[2]);
+	filename[3] = (char)tolower((int)filename[3]);
 	filename[ACPI_NAME_SIZE] = 0;
 
 	/* Handle multiple SSDts - create different filenames for each */
@@ -147,10 +147,10 @@ int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
 	if (instance > 0) {
 		acpi_ut_snprintf(instance_str, sizeof(instance_str), "%u",
 				 instance);
-		ACPI_STRCAT(filename, instance_str);
+		strcat(filename, instance_str);
 	}
 
-	ACPI_STRCAT(filename, ACPI_TABLE_FILE_SUFFIX);
+	strcat(filename, ACPI_TABLE_FILE_SUFFIX);
 
 	if (gbl_verbose_mode) {
 		acpi_log_error