diff --git a/drivers/acpi/acpi_cmos_rtc.c b/drivers/acpi/acpi_cmos_rtc.c
index 84190ed89c04bb74f1a69d0c8d72fe23efbfacc2..961b45d18a5de484243da61ee0e40625956c3265 100644
--- a/drivers/acpi/acpi_cmos_rtc.c
+++ b/drivers/acpi/acpi_cmos_rtc.c
@@ -18,8 +18,6 @@
 
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 ACPI_MODULE_NAME("cmos rtc");
 
 static const struct acpi_device_id acpi_cmos_rtc_ids[] = {
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 368f9ddb8480777420b2d5633facfeb238db1e27..dceba8310c4f819ad48a45007543ade7a7f9a376 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -31,8 +31,6 @@
 
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 #define _COMPONENT			ACPI_CONTAINER_COMPONENT
 ACPI_MODULE_NAME("container");
 
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 5bfd769fc91fa5bfd0890a146a4eed13ac342ff0..e6500ace50457d7ac45170f1801262bb68cf743e 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -35,8 +35,6 @@
 
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 #define ACPI_DOCK_DRIVER_DESCRIPTION "ACPI Dock Station Driver"
 
 ACPI_MODULE_NAME("dock");
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index fc1aa7909690c3ef148930a4a96080d2bcaaa155..ee11657b3339ef8a4e2968709cd7e9fb2b13633c 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -52,7 +52,7 @@
 
 #define _COMPONENT		ACPI_OS_SERVICES
 ACPI_MODULE_NAME("osl");
-#define PREFIX		"ACPI: "
+
 struct acpi_os_dpc {
 	acpi_osd_exec_callback function;
 	void *context;
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 9418c7a1f78665b32c980f815e789f152e973cb5..cfd7581cc19fa24c37d1a3fb7cb370e33a63c760 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -43,8 +43,6 @@
 
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 #define _COMPONENT			ACPI_PCI_COMPONENT
 ACPI_MODULE_NAME("pci_link");
 #define ACPI_PCI_LINK_CLASS		"pci_irq_routing"
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index c1c4102e647898717fb8e3c7acc440561d608d8a..74e6c4e8cd05bf580989d0420506f8201fd24ad4 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -39,8 +39,6 @@
 
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 #define _COMPONENT		ACPI_PCI_COMPONENT
 ACPI_MODULE_NAME("pci_root");
 #define ACPI_PCI_ROOT_CLASS		"pci_bridge"
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index ad7da686e6e6f8d9745a4edf866e174b99b08538..e0bcfb642b52654f1dfb2f8948c1cac62ff96c68 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -46,8 +46,6 @@
 #include "sleep.h"
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 #define _COMPONENT			ACPI_POWER_COMPONENT
 ACPI_MODULE_NAME("power");
 #define ACPI_POWER_CLASS		"power_resource"
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index a4eea9a508d3efd977fe97563b967b776a49a084..57e0769656c6e54bad8c7af8d5ec8e3ef63b1f25 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -15,7 +15,6 @@
 
 #include "internal.h"
 
-#define PREFIX			"ACPI: "
 #define _COMPONENT		ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_core");
 
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index c1c35623550fd723e74a63d5abfaea1ef724e3ab..7f70f3182d506ffc41ce61f370e047d514c34db3 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -41,8 +41,6 @@
 
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 #define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80
 #define ACPI_PROCESSOR_NOTIFY_POWER	0x81
 #define ACPI_PROCESSOR_NOTIFY_THROTTLING	0x82
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 91a32cefb11f6098fbea62d9744ed61ed864c4a9..38cb9782d4b871f54c646fc360f922bac03a68fd 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -12,8 +12,6 @@
 #define _COMPONENT		ACPI_SYSTEM_COMPONENT
 ACPI_MODULE_NAME("sysfs");
 
-#define PREFIX "ACPI: "
-
 #ifdef CONFIG_ACPI_DEBUG
 /*
  * ACPI debug sysfs I/F, including:
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index b6ba88ed31aeeb1854e48bb73b95fc59a4d58706..48c7e8af9c96cba545731cb0ab464cb4097dc44b 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -45,8 +45,6 @@
 
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 #define ACPI_VIDEO_BUS_NAME		"Video Bus"
 #define ACPI_VIDEO_DEVICE_NAME		"Video Device"
 #define ACPI_VIDEO_NOTIFY_SWITCH	0x80
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 19080c8e2f2a9c6d5df7f5475d581f5348ed9e8e..33e3db548a2918a6ee0fc71d7daf9c678c9a141f 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -40,8 +40,6 @@
 
 #include "internal.h"
 
-#define PREFIX "ACPI: "
-
 ACPI_MODULE_NAME("video");
 #define _COMPONENT		ACPI_VIDEO_COMPONENT