186 files changed, 5392 insertions, 2622 deletions

diff --git a/Documentation/cpu-freq/core.txt b/Documentation/cpu-freq/core.txt
index 29b3f9ffc66c..ce0666e51036 100644
--- a/Documentation/cpu-freq/core.txt
+++ b/Documentation/cpu-freq/core.txt
@@ -24,7 +24,7 @@ Contents:
 1. General Information
 =======================
 
-The CPUFreq core code is located in linux/kernel/cpufreq.c. This
+The CPUFreq core code is located in drivers/cpufreq/cpufreq.c. This
 cpufreq code offers a standardized interface for the CPUFreq
 architecture drivers (those pieces of code that do actual
 frequency transitions), as well as to "notifiers". These are device
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 46f2a559b27c..64ce44da5936 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -216,17 +216,6 @@ Who:	Thomas Gleixner <tglx@linutronix.de>
 
 ---------------------------
 
-What:   i2c-ite and i2c-algo-ite drivers
-When:   September 2006
-Why:    These drivers never compiled since they were added to the kernel
-        tree 5 years ago. This feature removal can be reevaluated if
-        someone shows interest in the drivers, fixes them and takes over
-        maintenance.
-        http://marc.theaimsgroup.com/?l=linux-mips&m=115040510817448
-Who:    Jean Delvare <khali@linux-fr.org>
-
----------------------------
-
 What:   Bridge netfilter deferred IPv4/IPv6 output hook calling
 When:   January 2007
 Why:    The deferred output hooks are a layering violation causing unusual
@@ -270,3 +259,25 @@ Why:	The new layer 3 independant connection tracking replaces the old
 Who:    Patrick McHardy <kaber@trash.net>
 
 ---------------------------
+
+What:   ACPI hooks (X86_SPEEDSTEP_CENTRINO_ACPI) in speedstep-centrino driver
+When:   December 2006
+Why:    Speedstep-centrino driver with ACPI hooks and acpi-cpufreq driver are
+        functionally very much similar. They talk to ACPI in same way. Only
+        difference between them is the way they do frequency transitions.
+        One uses MSRs and the other one uses IO ports. Functionaliy of
+        speedstep_centrino with ACPI hooks is now merged into acpi-cpufreq.
+        That means one common driver will support all Intel Enhanced Speedstep
+        capable CPUs. That means less confusion over name of
+        speedstep-centrino driver (with that driver supposed to be used on
+        non-centrino platforms). That means less duplication of code and
+        less maintenance effort and no possibility of these two drivers
+        going out of sync.
+        Current users of speedstep_centrino with ACPI hooks are requested to
+        switch over to acpi-cpufreq driver. speedstep-centrino will continue
+        to work using older non-ACPI static table based scheme even after this
+        date.
+
+Who:    Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+
+---------------------------
diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt
index af6defd10cb6..8ccf0c1b58ed 100644
--- a/Documentation/filesystems/ocfs2.txt
+++ b/Documentation/filesystems/ocfs2.txt
@@ -54,3 +54,6 @@ errors=panic		Panic and halt the machine if an error occurs.
 intr            (*)     Allow signals to interrupt cluster operations.
 nointr                  Do not allow signals to interrupt cluster
                         operations.
+atime_quantum=60(*)     OCFS2 will not update atime unless this number
+                        of seconds has passed since the last update.
+                        Set to zero to always update atime.
diff --git a/Documentation/i2c/busses/i2c-amd8111 b/Documentation/i2c/busses/i2c-amd8111
index db294ee7455a..460dd6635fd2 100644
--- a/Documentation/i2c/busses/i2c-amd8111
+++ b/Documentation/i2c/busses/i2c-amd8111
@@ -5,7 +5,7 @@ Supported adapters:
 
 Datasheets:
         AMD datasheet not yet available, but almost everything can be found
-        in publically available ACPI 2.0 specification, which the adapter 
+        in the publicly available ACPI 2.0 specification, which the adapter
         follows.
 
 Author: Vojtech Pavlik <vojtech@suse.cz>
diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index e46c23458242..3db69a086c41 100644
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -9,7 +9,10 @@ Supported adapters:
   * Intel 82801EB/ER (ICH5) (HW PEC supported, 32 byte buffer not supported)
   * Intel 6300ESB
   * Intel 82801FB/FR/FW/FRW (ICH6)
-  * Intel ICH7
+  * Intel 82801G (ICH7)
+  * Intel 631xESB/632xESB (ESB2)
+  * Intel 82801H (ICH8)
+  * Intel ICH9
     Datasheets: Publicly available at the Intel website
 
 Authors: 
diff --git a/Documentation/i2c/busses/i2c-nforce2 b/Documentation/i2c/busses/i2c-nforce2
index cd49c428a3ab..7f61fbc03f7f 100644
--- a/Documentation/i2c/busses/i2c-nforce2
+++ b/Documentation/i2c/busses/i2c-nforce2
@@ -10,11 +10,11 @@ Supported adapters:
   * nForce4 MCP51              10de:0264
   * nForce4 MCP55              10de:0368
 
-Datasheet: not publically available, but seems to be similar to the
+Datasheet: not publicly available, but seems to be similar to the
            AMD-8111 SMBus 2.0 adapter.
 
 Authors:
-        Hans-Frieder Vogt <hfvogt@arcor.de>, 
+        Hans-Frieder Vogt <hfvogt@gmx.net>,
         Thomas Leibold <thomas@plx.com>, 
         Patrick Dreker <patrick@dreker.de>
         
@@ -38,7 +38,7 @@ Notes
 -----
 
 The SMBus adapter in the nForce2 chipset seems to be very similar to the
-SMBus 2.0 adapter in the AMD-8111 southbridge. However, I could only get
+SMBus 2.0 adapter in the AMD-8111 south bridge. However, I could only get
 the driver to work with direct I/O access, which is different to the EC
 interface of the AMD-8111. Tested on Asus A7N8X. The ACPI DSDT table of the
 Asus A7N8X lists two SMBuses, both of which are supported by this driver.
diff --git a/Documentation/kbuild/kconfig-language.txt b/Documentation/kbuild/kconfig-language.txt
index 125093c3ef76..536d5bfbdb8d 100644
--- a/Documentation/kbuild/kconfig-language.txt
+++ b/Documentation/kbuild/kconfig-language.txt
@@ -29,7 +29,7 @@ them. A single configuration option is defined like this:
 
 config MODVERSIONS
         bool "Set version information on all module symbols"
-        depends MODULES
+        depends on MODULES
         help
           Usually, modules have to be recompiled whenever you switch to a new
           kernel.  ...
@@ -163,7 +163,7 @@ The position of a menu entry in the tree is determined in two ways. First
 it can be specified explicitly:
 
 menu "Network device support"
-        depends NET
+        depends on NET
 
 config NETDEVICES
         ...
@@ -188,10 +188,10 @@ config MODULES
 
 config MODVERSIONS
         bool "Set version information on all module symbols"
-        depends MODULES
+        depends on MODULES
 
 comment "module support disabled"
-        depends !MODULES
+        depends on !MODULES
 
 MODVERSIONS directly depends on MODULES, this means it's only visible if
 MODULES is different from 'n'. The comment on the other hand is always
diff --git a/MAINTAINERS b/MAINTAINERS
index b2024938adcf..8a0bfeca55c9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -740,7 +740,7 @@ P:	Dave Jones
 M:      davej@codemonkey.org.uk
 L:      cpufreq@lists.linux.org.uk
 W:      http://www.codemonkey.org.uk/projects/cpufreq/
-T:      git kernel.org/pub/scm/linux/kernel/davej/cpufreq.git
+T:      git kernel.org/pub/scm/linux/kernel/git/davej/cpufreq.git
 S:      Maintained
 
 CPUID/MSR DRIVER
@@ -1504,8 +1504,10 @@ T:	git kernel.org:/pub/scm/linux/kernel/git/dtor/input.git
 S:      Maintained
 
 INOTIFY
-P:      John McCutchan and Robert Love
-M:      ttb@tentacle.dhs.org and rml@novell.com
+P:      John McCutchan
+M:      ttb@tentacle.dhs.org
+P:      Robert Love
+M:      rml@novell.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
 
diff --git a/Makefile b/Makefile
index 73e825b39a08..4eabaa8afbff 100644
--- a/Makefile
+++ b/Makefile
@@ -1100,9 +1100,9 @@ boards := $(notdir $(boards))
 
 help:
         @echo  'Cleaning targets:'
-        @echo  '  clean           - remove most generated files but keep the config and'
+        @echo  '  clean           - Remove most generated files but keep the config and'
         @echo  '                    enough build support to build external modules'
-        @echo  '  mrproper        - remove all generated files + config + various backup files'
+        @echo  '  mrproper        - Remove all generated files + config + various backup files'
         @echo  '  distclean       - mrproper + remove editor backup and patch files'
         @echo  ''
         @echo  'Configuration targets:'
diff --git a/arch/arm/mach-pnx4008/Makefile b/arch/arm/mach-pnx4008/Makefile
index b457ca0a431a..777564c90a12 100644
--- a/arch/arm/mach-pnx4008/Makefile
+++ b/arch/arm/mach-pnx4008/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-obj-y                   := core.o irq.o time.o clock.o gpio.o serial.o dma.o
+obj-y                   := core.o irq.o time.o clock.o gpio.o serial.o dma.o i2c.o
 obj-m                   :=
 obj-n                   :=
 obj-                    :=
diff --git a/arch/arm/mach-pnx4008/i2c.c b/arch/arm/mach-pnx4008/i2c.c
new file mode 100644
index 000000000000..6f308827c4fe
--- /dev/null
+++ b/arch/arm/mach-pnx4008/i2c.c
@@ -0,0 +1,167 @@
+/*
+ * I2C initialization for PNX4008.
+ *
+ * Author: Vitaly Wool <vitalywool@gmail.com>
+ *
+ * 2005-2006 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/i2c-pnx.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <asm/arch/platform.h>
+#include <asm/arch/i2c.h>
+
+static int set_clock_run(struct platform_device *pdev)
+{
+        struct clk *clk;
+        char name[10];
+        int retval = 0;
+
+        snprintf(name, 10, "i2c%d_ck", pdev->id);
+        clk = clk_get(&pdev->dev, name);
+        if (!IS_ERR(clk)) {
+                clk_set_rate(clk, 1);
+                clk_put(clk);
+        } else
+                retval = -ENOENT;
+
+        return retval;
+}
+
+static int set_clock_stop(struct platform_device *pdev)
+{
+        struct clk *clk;
+        char name[10];
+        int retval = 0;
+
+        snprintf(name, 10, "i2c%d_ck", pdev->id);
+        clk = clk_get(&pdev->dev, name);
+        if (!IS_ERR(clk)) {
+                clk_set_rate(clk, 0);
+                clk_put(clk);
+        } else
+                retval = -ENOENT;
+
+        return retval;
+}
+
+static int i2c_pnx_suspend(struct platform_device *pdev, pm_message_t state)
+{
+        int retval = 0;
+#ifdef CONFIG_PM
+        retval = set_clock_run(pdev);
+#endif
+        return retval;
+}
+
+static int i2c_pnx_resume(struct platform_device *pdev)
+{
+        int retval = 0;
+#ifdef CONFIG_PM
+        retval = set_clock_run(pdev);
+#endif
+        return retval;
+}
+
+static u32 calculate_input_freq(struct platform_device *pdev)
+{
+        return HCLK_MHZ;
+}
+
+
+static struct i2c_pnx_algo_data pnx_algo_data0 = {
+        .base = PNX4008_I2C1_BASE,
+        .irq = I2C_1_INT,
+};
+
+static struct i2c_pnx_algo_data pnx_algo_data1 = {
+        .base = PNX4008_I2C2_BASE,
+        .irq = I2C_2_INT,
+};
+
+static struct i2c_pnx_algo_data pnx_algo_data2 = {
+        .base = (PNX4008_USB_CONFIG_BASE + 0x300),
+        .irq = USB_I2C_INT,
+};
+
+static struct i2c_adapter pnx_adapter0 = {
+        .name = I2C_CHIP_NAME "0",
+        .algo_data = &pnx_algo_data0,
+};
+static struct i2c_adapter pnx_adapter1 = {
+        .name = I2C_CHIP_NAME "1",
+        .algo_data = &pnx_algo_data1,
+};
+
+static struct i2c_adapter pnx_adapter2 = {
+        .name = "USB-I2C",
+        .algo_data = &pnx_algo_data2,
+};
+
+static struct i2c_pnx_data i2c0_data = {
+        .suspend = i2c_pnx_suspend,
+        .resume = i2c_pnx_resume,
+        .calculate_input_freq = calculate_input_freq,
+        .set_clock_run = set_clock_run,
+        .set_clock_stop = set_clock_stop,
+        .adapter = &pnx_adapter0,
+};
+
+static struct i2c_pnx_data i2c1_data = {
+        .suspend = i2c_pnx_suspend,
+        .resume = i2c_pnx_resume,
+        .calculate_input_freq = calculate_input_freq,
+        .set_clock_run = set_clock_run,
+        .set_clock_stop = set_clock_stop,
+        .adapter = &pnx_adapter1,
+};
+
+static struct i2c_pnx_data i2c2_data = {
+        .suspend = i2c_pnx_suspend,
+        .resume = i2c_pnx_resume,
+        .calculate_input_freq = calculate_input_freq,
+        .set_clock_run = set_clock_run,
+        .set_clock_stop = set_clock_stop,
+        .adapter = &pnx_adapter2,
+};
+
+static struct platform_device i2c0_device = {
+        .name = "pnx-i2c",
+        .id = 0,
+        .dev = {
+                .platform_data = &i2c0_data,
+        },
+};
+
+static struct platform_device i2c1_device = {
+        .name = "pnx-i2c",
+        .id = 1,
+        .dev = {
+                .platform_data = &i2c1_data,
+        },
+};
+
+static struct platform_device i2c2_device = {
+        .name = "pnx-i2c",
+        .id = 2,
+        .dev = {
+                .platform_data = &i2c2_data,
+        },
+};
+
+static struct platform_device *devices[] __initdata = {
+        &i2c0_device,
+        &i2c1_device,
+        &i2c2_device,
+};
+
+void __init pnx4008_register_i2c_devices(void)
+{
+        platform_add_devices(devices, ARRAY_SIZE(devices));
+}
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 9e3d0bdcba07..5c0a10041cd1 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -75,28 +75,28 @@ endmenu
 
 config MACH_POODLE
         bool "Enable Sharp SL-5600 (Poodle) Support"
-        depends PXA_SHARPSL_25x
+        depends on PXA_SHARPSL_25x
         select SHARP_LOCOMO
         select PXA_SSP
 
 config MACH_CORGI
         bool "Enable Sharp SL-C700 (Corgi) Support"
-        depends PXA_SHARPSL_25x
+        depends on PXA_SHARPSL_25x
         select PXA_SHARP_C7xx
 
 config MACH_SHEPHERD
         bool "Enable Sharp SL-C750 (Shepherd) Support"
-        depends PXA_SHARPSL_25x
+        depends on PXA_SHARPSL_25x
         select PXA_SHARP_C7xx
 
 config MACH_HUSKY
         bool "Enable Sharp SL-C760 (Husky) Support"
-        depends PXA_SHARPSL_25x
+        depends on PXA_SHARPSL_25x
         select PXA_SHARP_C7xx
 
 config MACH_AKITA
         bool "Enable Sharp SL-1000 (Akita) Support"
-        depends PXA_SHARPSL_27x
+        depends on PXA_SHARPSL_27x
         select PXA_SHARP_Cxx00
         select MACH_SPITZ
         select I2C
@@ -104,17 +104,17 @@ config MACH_AKITA
 
 config MACH_SPITZ
         bool "Enable Sharp Zaurus SL-3000 (Spitz) Support"
-        depends PXA_SHARPSL_27x
+        depends on PXA_SHARPSL_27x
         select PXA_SHARP_Cxx00
 
 config MACH_BORZOI
         bool "Enable Sharp Zaurus SL-3100 (Borzoi) Support"
-        depends PXA_SHARPSL_27x
+        depends on PXA_SHARPSL_27x
         select PXA_SHARP_Cxx00
 
 config MACH_TOSA
         bool "Enable Sharp SL-6000x (Tosa) Support"
-        depends PXA_SHARPSL_25x
+        depends on PXA_SHARPSL_25x
 
 config PXA25x
         bool
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 68c67053f479..84d3fe76e94e 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -141,6 +141,19 @@ struct platform_device realview_smc91x_device = {
         .resource       = realview_smc91x_resources,
 };
 
+static struct resource realview_i2c_resource = {
+        .start          = REALVIEW_I2C_BASE,
+        .end            = REALVIEW_I2C_BASE + SZ_4K - 1,
+        .flags          = IORESOURCE_MEM,
+};
+
+struct platform_device realview_i2c_device = {
+        .name           = "versatile-i2c",
+        .id             = -1,
+        .num_resources  = 1,
+        .resource       = &realview_i2c_resource,
+};
+
 #define REALVIEW_SYSMCI (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_MCI_OFFSET)
 
 static unsigned int realview_mmc_status(struct device *dev)
diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h
index 93e86d9f439c..2b53420f9c1b 100644
--- a/arch/arm/mach-realview/core.h
+++ b/arch/arm/mach-realview/core.h
@@ -108,6 +108,7 @@ static struct amba_device name##_device = {			\
 
 extern struct platform_device realview_flash_device;
 extern struct platform_device realview_smc91x_device;
+extern struct platform_device realview_i2c_device;
 extern struct mmc_platform_data realview_mmc0_plat_data;
 extern struct mmc_platform_data realview_mmc1_plat_data;
 extern struct clk realview_clcd_clk;
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 84a959530fb6..9741b4d3c9cf 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -155,6 +155,7 @@ static void __init realview_eb_init(void)
 
         platform_device_register(&realview_flash_device);
         platform_device_register(&realview_smc91x_device);
+        platform_device_register(&realview_i2c_device);
 
         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
                 struct amba_device *d = amba_devs[i];
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 57196947559f..bf71507c76fd 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -325,6 +325,19 @@ static struct platform_device smc91x_device = {
         .resource       = smc91x_resources,
 };
 
+static struct resource versatile_i2c_resource = {
+        .start                  = VERSATILE_I2C_BASE,
+        .end                    = VERSATILE_I2C_BASE + SZ_4K - 1,
+        .flags                  = IORESOURCE_MEM,
+};
+
+static struct platform_device versatile_i2c_device = {
+        .name                   = "versatile-i2c",
+        .id                     = -1,
+        .num_resources          = 1,
+        .resource               = &versatile_i2c_resource,
+};
+
 #define VERSATILE_SYSMCI        (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET)
 
 unsigned int mmc_status(struct device *dev)
@@ -775,6 +788,7 @@ void __init versatile_init(void)
         clk_register(&versatile_clcd_clk);
 
         platform_device_register(&versatile_flash_device);
+        platform_device_register(&versatile_i2c_device);
         platform_device_register(&smc91x_device);
 
         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index ec752e16d618..f2dc363de66b 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -113,7 +113,7 @@ endchoice
 
 config OMAP_SERIAL_WAKE
         bool "Enable wake-up events for serial ports"
-        depends OMAP_MUX
+        depends on OMAP_MUX
         default y
         help
           Select this option if you want to have your system wake up
diff --git a/arch/i386/kernel/cpu/cpufreq/Kconfig b/arch/i386/kernel/cpu/cpufreq/Kconfig
index ccc1edff5c97..5299c5bf4454 100644
--- a/arch/i386/kernel/cpu/cpufreq/Kconfig
+++ b/arch/i386/kernel/cpu/cpufreq/Kconfig
@@ -17,6 +17,7 @@ config X86_ACPI_CPUFREQ
         help
           This driver adds a CPUFreq driver which utilizes the ACPI
           Processor Performance States.
+          This driver also supports Intel Enhanced Speedstep.
 
           For details, take a look at <file:Documentation/cpu-freq/>.
 
@@ -121,11 +122,14 @@ config X86_SPEEDSTEP_CENTRINO
           If in doubt, say N.
 
 config X86_SPEEDSTEP_CENTRINO_ACPI
-        bool "Use ACPI tables to decode valid frequency/voltage pairs"
+        bool "Use ACPI tables to decode valid frequency/voltage (deprecated)"
         depends on X86_SPEEDSTEP_CENTRINO && ACPI_PROCESSOR
         depends on !(X86_SPEEDSTEP_CENTRINO = y && ACPI_PROCESSOR = m)
         default y
         help
+          This is deprecated and this functionality is now merged into
+          acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of
+          speedstep_centrino.
           Use primarily the information provided in the BIOS ACPI tables
           to determine valid CPU frequency and voltage pairings. It is
           required for the driver to work on non-Banias CPUs.
diff --git a/arch/i386/kernel/cpu/cpufreq/Makefile b/arch/i386/kernel/cpu/cpufreq/Makefile
index 2e894f1c8910..8de3abe322a9 100644
--- a/arch/i386/kernel/cpu/cpufreq/Makefile
+++ b/arch/i386/kernel/cpu/cpufreq/Makefile
@@ -7,9 +7,9 @@ obj-$(CONFIG_SC520_CPUFREQ)		+= sc520_freq.o
 obj-$(CONFIG_X86_LONGRUN)               += longrun.o  
 obj-$(CONFIG_X86_GX_SUSPMOD)            += gx-suspmod.o
 obj-$(CONFIG_X86_SPEEDSTEP_ICH)         += speedstep-ich.o
-obj-$(CONFIG_X86_SPEEDSTEP_CENTRINO)    += speedstep-centrino.o
 obj-$(CONFIG_X86_SPEEDSTEP_LIB)         += speedstep-lib.o
 obj-$(CONFIG_X86_SPEEDSTEP_SMI)         += speedstep-smi.o
 obj-$(CONFIG_X86_ACPI_CPUFREQ)          += acpi-cpufreq.o
+obj-$(CONFIG_X86_SPEEDSTEP_CENTRINO)    += speedstep-centrino.o
 obj-$(CONFIG_X86_P4_CLOCKMOD)           += p4-clockmod.o
 obj-$(CONFIG_X86_CPUFREQ_NFORCE2)       += cpufreq-nforce2.o
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index 57c880bf0bd6..18f4715c655d 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -1,9 +1,10 @@
 /*
- * acpi-cpufreq.c - ACPI Processor P-States Driver ($Revision: 1.3 $)
+ * acpi-cpufreq.c - ACPI Processor P-States Driver ($Revision: 1.4 $)
  *
  *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
  *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
  *  Copyright (C) 2002 - 2004 Dominik Brodowski <linux@brodo.de>
+ *  Copyright (C) 2006       Denis Sadykov <denis.m.sadykov@intel.com>
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -27,202 +28,387 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/sched.h>
 #include <linux/cpufreq.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
 #include <linux/compiler.h>
-#include <linux/sched.h>        /* current */
 #include <linux/dmi.h>
-#include <asm/io.h>
-#include <asm/delay.h>
-#include <asm/uaccess.h>
 
 #include <linux/acpi.h>
 #include <acpi/processor.h>
 
+#include <asm/io.h>
+#include <asm/msr.h>
+#include <asm/processor.h>
+#include <asm/cpufeature.h>
+#include <asm/delay.h>
+#include <asm/uaccess.h>
+
 #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "acpi-cpufreq", msg)
 
 MODULE_AUTHOR("Paul Diefenbaugh, Dominik Brodowski");
 MODULE_DESCRIPTION("ACPI Processor P-States Driver");
 MODULE_LICENSE("GPL");
 
+enum {
+        UNDEFINED_CAPABLE = 0,
+        SYSTEM_INTEL_MSR_CAPABLE,
+        SYSTEM_IO_CAPABLE,
+};
+
+#define INTEL_MSR_RANGE         (0xffff)
+#define CPUID_6_ECX_APERFMPERF_CAPABILITY       (0x1)
 
-struct cpufreq_acpi_io {
-        struct acpi_processor_performance       *acpi_data;
-        struct cpufreq_frequency_table          *freq_table;
-        unsigned int                            resume;
+struct acpi_cpufreq_data {
+        struct acpi_processor_performance *acpi_data;
+        struct cpufreq_frequency_table *freq_table;
+        unsigned int max_freq;
+        unsigned int resume;
+        unsigned int cpu_feature;
 };
 
-static struct cpufreq_acpi_io   *acpi_io_data[NR_CPUS];
-static struct acpi_processor_performance        *acpi_perf_data[NR_CPUS];
+static struct acpi_cpufreq_data *drv_data[NR_CPUS];
+static struct acpi_processor_performance *acpi_perf_data[NR_CPUS];
 
 static struct cpufreq_driver acpi_cpufreq_driver;
 
 static unsigned int acpi_pstate_strict;
 
-static int
-acpi_processor_write_port(
-        u16     port,
-        u8      bit_width,
-        u32     value)
+static int check_est_cpu(unsigned int cpuid)
+{
+        struct cpuinfo_x86 *cpu = &cpu_data[cpuid];
+
+        if (cpu->x86_vendor != X86_VENDOR_INTEL ||
+            !cpu_has(cpu, X86_FEATURE_EST))
+                return 0;
+
+        return 1;
+}
+
+static unsigned extract_io(u32 value, struct acpi_cpufreq_data *data)
+{
+        struct acpi_processor_performance *perf;
+        int i;
+
+        perf = data->acpi_data;
+
+        for (i=0; i<perf->state_count; i++) {
+                if (value == perf->states[i].status)
+                        return data->freq_table[i].frequency;
+        }
+        return 0;
+}
+
+static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data)
 {
-        if (bit_width <= 8) {
+        int i;
+        struct acpi_processor_performance *perf;
+
+        msr &= INTEL_MSR_RANGE;
+        perf = data->acpi_data;
+
+        for (i=0; data->freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
+                if (msr == perf->states[data->freq_table[i].index].status)
+                        return data->freq_table[i].frequency;
+        }
+        return data->freq_table[0].frequency;
+}
+
+static unsigned extract_freq(u32 val, struct acpi_cpufreq_data *data)
+{
+        switch (data->cpu_feature) {
+        case SYSTEM_INTEL_MSR_CAPABLE:
+                return extract_msr(val, data);
+        case SYSTEM_IO_CAPABLE:
+                return extract_io(val, data);
+        default:
+                return 0;
+        }
+}
+
+static void wrport(u16 port, u8 bit_width, u32 value)
+{
+        if (bit_width <= 8)
                 outb(value, port);
-        } else if (bit_width <= 16) {
+        else if (bit_width <= 16)
                 outw(value, port);
-        } else if (bit_width <= 32) {
+        else if (bit_width <= 32)
                 outl(value, port);
-        } else {
-                return -ENODEV;
-        }
-        return 0;
 }
 
-static int
-acpi_processor_read_port(
-        u16     port,
-        u8      bit_width,
-        u32     *ret)
+static void rdport(u16 port, u8 bit_width, u32 * ret)
 {
         *ret = 0;
-        if (bit_width <= 8) {
+        if (bit_width <= 8)
                 *ret = inb(port);
-        } else if (bit_width <= 16) {
+        else if (bit_width <= 16)
                 *ret = inw(port);
-        } else if (bit_width <= 32) {
+        else if (bit_width <= 32)
                 *ret = inl(port);
-        } else {
-                return -ENODEV;
+}
+
+struct msr_addr {
+        u32 reg;
+};
+
+struct io_addr {
+        u16 port;
+        u8 bit_width;
+};
+
+typedef union {
+        struct msr_addr msr;
+        struct io_addr io;
+} drv_addr_union;
+
+struct drv_cmd {
+        unsigned int type;
+        cpumask_t mask;
+        drv_addr_union addr;
+        u32 val;
+};
+
+static void do_drv_read(struct drv_cmd *cmd)
+{
+        u32 h;
+
+        switch (cmd->type) {
+        case SYSTEM_INTEL_MSR_CAPABLE:
+                rdmsr(cmd->addr.msr.reg, cmd->val, h);
+                break;
+        case SYSTEM_IO_CAPABLE:
+                rdport(cmd->addr.io.port, cmd->addr.io.bit_width, &cmd->val);
+                break;
+        default:
+                break;
         }
-        return 0;
 }
 
-static int
-acpi_processor_set_performance (
-        struct cpufreq_acpi_io  *data,
-        unsigned int            cpu,
-        int                     state)
+static void do_drv_write(struct drv_cmd *cmd)
 {
-        u16                     port = 0;
-        u8                      bit_width = 0;
-        int                     i = 0;
-        int                     ret = 0;
-        u32                     value = 0;
-        int                     retval;
-        struct acpi_processor_performance       *perf;
-
-        dprintk("acpi_processor_set_performance\n");
-
-        retval = 0;
-        perf = data->acpi_data; 
-        if (state == perf->state) {
-                if (unlikely(data->resume)) {
-                        dprintk("Called after resume, resetting to P%d\n", state);
-                        data->resume = 0;
-                } else {
-                        dprintk("Already at target state (P%d)\n", state);
-                        return (retval);
-                }
+        u32 h = 0;
+
+        switch (cmd->type) {
+        case SYSTEM_INTEL_MSR_CAPABLE:
+                wrmsr(cmd->addr.msr.reg, cmd->val, h);
+                break;
+        case SYSTEM_IO_CAPABLE:
+                wrport(cmd->addr.io.port, cmd->addr.io.bit_width, cmd->val);
+                break;
+        default:
+                break;
         }
+}
 
-        dprintk("Transitioning from P%d to P%d\n", perf->state, state);
+static void drv_read(struct drv_cmd *cmd)
+{
+        cpumask_t saved_mask = current->cpus_allowed;
+        cmd->val = 0;
 
-        /*
-         * First we write the target state's 'control' value to the
-         * control_register.
-         */
+        set_cpus_allowed(current, cmd->mask);
+        do_drv_read(cmd);
+        set_cpus_allowed(current, saved_mask);
+}
+
+static void drv_write(struct drv_cmd *cmd)
+{
+        cpumask_t saved_mask = current->cpus_allowed;
+        unsigned int i;
+
+        for_each_cpu_mask(i, cmd->mask) {
+                set_cpus_allowed(current, cpumask_of_cpu(i));
+                do_drv_write(cmd);
+        }
+
+        set_cpus_allowed(current, saved_mask);
+        return;
+}
+
+static u32 get_cur_val(cpumask_t mask)
+{
+        struct acpi_processor_performance *perf;
+        struct drv_cmd cmd;
+
+        if (unlikely(cpus_empty(mask)))
+                return 0;
+
+        switch (drv_data[first_cpu(mask)]->cpu_feature) {
+        case SYSTEM_INTEL_MSR_CAPABLE:
+                cmd.type = SYSTEM_INTEL_MSR_CAPABLE;
+                cmd.addr.msr.reg = MSR_IA32_PERF_STATUS;
+                break;
+        case SYSTEM_IO_CAPABLE:
+                cmd.type = SYSTEM_IO_CAPABLE;
+                perf = drv_data[first_cpu(mask)]->acpi_data;
+                cmd.addr.io.port = perf->control_register.address;
+                cmd.addr.io.bit_width = perf->control_register.bit_width;
+                break;
+        default:
+                return 0;
+        }
+
+        cmd.mask = mask;
 
-        port = perf->control_register.address;
-        bit_width = perf->control_register.bit_width;
-        value = (u32) perf->states[state].control;
+        drv_read(&cmd);
 
-        dprintk("Writing 0x%08x to port 0x%04x\n", value, port);
+        dprintk("get_cur_val = %u\n", cmd.val);
 
-        ret = acpi_processor_write_port(port, bit_width, value);
-        if (ret) {
-                dprintk("Invalid port width 0x%04x\n", bit_width);
-                return (ret);
+        return cmd.val;
+}
+
+/*
+ * Return the measured active (C0) frequency on this CPU since last call
+ * to this function.
+ * Input: cpu number
+ * Return: Average CPU frequency in terms of max frequency (zero on error)
+ *
+ * We use IA32_MPERF and IA32_APERF MSRs to get the measured performance
+ * over a period of time, while CPU is in C0 state.
+ * IA32_MPERF counts at the rate of max advertised frequency
+ * IA32_APERF counts at the rate of actual CPU frequency
+ * Only IA32_APERF/IA32_MPERF ratio is architecturally defined and
+ * no meaning should be associated with absolute values of these MSRs.
+ */
+static unsigned int get_measured_perf(unsigned int cpu)
+{
+        union {
+                struct {
+                        u32 lo;
+                        u32 hi;
+                } split;
+                u64 whole;
+        } aperf_cur, mperf_cur;
+
+        cpumask_t saved_mask;
+        unsigned int perf_percent;
+        unsigned int retval;
+
+        saved_mask = current->cpus_allowed;
+        set_cpus_allowed(current, cpumask_of_cpu(cpu));
+        if (get_cpu() != cpu) {
+                /* We were not able to run on requested processor */
+                put_cpu();
+                return 0;
         }
 
+        rdmsr(MSR_IA32_APERF, aperf_cur.split.lo, aperf_cur.split.hi);
+        rdmsr(MSR_IA32_MPERF, mperf_cur.split.lo, mperf_cur.split.hi);
+
+        wrmsr(MSR_IA32_APERF, 0,0);
+        wrmsr(MSR_IA32_MPERF, 0,0);
+
+#ifdef __i386__
         /*
-         * Assume the write went through when acpi_pstate_strict is not used.
-         * As read status_register is an expensive operation and there 
-         * are no specific error cases where an IO port write will fail.
+         * We dont want to do 64 bit divide with 32 bit kernel
+         * Get an approximate value. Return failure in case we cannot get
+         * an approximate value.
          */
-        if (acpi_pstate_strict) {
-                /* Then we read the 'status_register' and compare the value 
-                 * with the target state's 'status' to make sure the 
-                 * transition was successful.
-                 * Note that we'll poll for up to 1ms (100 cycles of 10us) 
-                 * before giving up.
-                 */
-
-                port = perf->status_register.address;
-                bit_width = perf->status_register.bit_width;
-
-                dprintk("Looking for 0x%08x from port 0x%04x\n",
-                        (u32) perf->states[state].status, port);
-
-                for (i = 0; i < 100; i++) {
-                        ret = acpi_processor_read_port(port, bit_width, &value);
-                        if (ret) {      
-                                dprintk("Invalid port width 0x%04x\n", bit_width);
-                                return (ret);
-                        }
-                        if (value == (u32) perf->states[state].status)
-                                break;
-                        udelay(10);
-                }
-        } else {
-                value = (u32) perf->states[state].status;
+        if (unlikely(aperf_cur.split.hi || mperf_cur.split.hi)) {
+                int shift_count;
+                u32 h;
+
+                h = max_t(u32, aperf_cur.split.hi, mperf_cur.split.hi);
+                shift_count = fls(h);
+
+                aperf_cur.whole >>= shift_count;
+                mperf_cur.whole >>= shift_count;
+        }
+
+        if (((unsigned long)(-1) / 100) < aperf_cur.split.lo) {
+                int shift_count = 7;
+                aperf_cur.split.lo >>= shift_count;
+                mperf_cur.split.lo >>= shift_count;
+        }
+
+        if (aperf_cur.split.lo && mperf_cur.split.lo)
+                perf_percent = (aperf_cur.split.lo * 100) / mperf_cur.split.lo;
+        else
+                perf_percent = 0;
+
+#else
+        if (unlikely(((unsigned long)(-1) / 100) < aperf_cur.whole)) {
+                int shift_count = 7;
+                aperf_cur.whole >>= shift_count;
+                mperf_cur.whole >>= shift_count;
         }
 
-        if (unlikely(value != (u32) perf->states[state].status)) {
-                printk(KERN_WARNING "acpi-cpufreq: Transition failed\n");
-                retval = -ENODEV;
-                return (retval);
+        if (aperf_cur.whole && mperf_cur.whole)
+                perf_percent = (aperf_cur.whole * 100) / mperf_cur.whole;
+        else
+                perf_percent = 0;
+
+#endif
+
+        retval = drv_data[cpu]->max_freq * perf_percent / 100;
+
+        put_cpu();
+        set_cpus_allowed(current, saved_mask);
+
+        dprintk("cpu %d: performance percent %d\n", cpu, perf_percent);
+        return retval;
+}
+
+static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
+{
+        struct acpi_cpufreq_data *data = drv_data[cpu];
+        unsigned int freq;
+
+        dprintk("get_cur_freq_on_cpu (%d)\n", cpu);
+
+        if (unlikely(data == NULL ||
+                     data->acpi_data == NULL || data->freq_table == NULL)) {
+                return 0;
         }
 
-        dprintk("Transition successful after %d microseconds\n", i * 10);
+        freq = extract_freq(get_cur_val(cpumask_of_cpu(cpu)), data);
+        dprintk("cur freq = %u\n", freq);
 
-        perf->state = state;
-        return (retval);
+        return freq;
 }
 
+static unsigned int check_freqs(cpumask_t mask, unsigned int freq,
+                                struct acpi_cpufreq_data *data)
+{
+        unsigned int cur_freq;
+        unsigned int i;
+
+        for (i=0; i<100; i++) {
+                cur_freq = extract_freq(get_cur_val(mask), data);
+                if (cur_freq == freq)
+                        return 1;
+                udelay(10);
+        }
+        return 0;
+}
 
-static int
-acpi_cpufreq_target (
-        struct cpufreq_policy   *policy,
-        unsigned int target_freq,
-        unsigned int relation)
+static int acpi_cpufreq_target(struct cpufreq_policy *policy,
+                               unsigned int target_freq, unsigned int relation)
 {
-        struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
+        struct acpi_cpufreq_data *data = drv_data[policy->cpu];
         struct acpi_processor_performance *perf;
         struct cpufreq_freqs freqs;
         cpumask_t online_policy_cpus;
-        cpumask_t saved_mask;
-        cpumask_t set_mask;
-        cpumask_t covered_cpus;
-        unsigned int cur_state = 0;
+        struct drv_cmd cmd;
+        unsigned int msr;
         unsigned int next_state = 0;
-        unsigned int result = 0;
-        unsigned int j;
-        unsigned int tmp;
+        unsigned int next_perf_state = 0;
+        unsigned int i;
+        int result = 0;
 
-        dprintk("acpi_cpufreq_setpolicy\n");
+        dprintk("acpi_cpufreq_target %d (%d)\n", target_freq, policy->cpu);
 
-        result = cpufreq_frequency_table_target(policy,
-                        data->freq_table,
-                        target_freq,
-                        relation,
-                        &next_state);
-        if (unlikely(result))
-                return (result);
+        if (unlikely(data == NULL ||
+             data->acpi_data == NULL || data->freq_table == NULL)) {
+                return -ENODEV;
+        }
 
         perf = data->acpi_data;
-        cur_state = perf->state;
-        freqs.old = data->freq_table[cur_state].frequency;
-        freqs.new = data->freq_table[next_state].frequency;
+        result = cpufreq_frequency_table_target(policy,
+                                                data->freq_table,
+                                                target_freq,
+                                                relation, &next_state);
+        if (unlikely(result))
+                return -ENODEV;
 
 #ifdef CONFIG_HOTPLUG_CPU
         /* cpufreq holds the hotplug lock, so we are safe from here on */
@@ -231,106 +417,84 @@ acpi_cpufreq_target (
         online_policy_cpus = policy->cpus;
 #endif
 
-        for_each_cpu_mask(j, online_policy_cpus) {
-                freqs.cpu = j;
-                cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+        next_perf_state = data->freq_table[next_state].index;
+        if (perf->state == next_perf_state) {
+                if (unlikely(data->resume)) {
+                        dprintk("Called after resume, resetting to P%d\n",
+                                next_perf_state);
+                        data->resume = 0;
+                } else {
+                        dprintk("Already at target state (P%d)\n",
+                                next_perf_state);
+                        return 0;
+                }
         }
 
-        /*
-         * We need to call driver->target() on all or any CPU in
-         * policy->cpus, depending on policy->shared_type.
-         */
-        saved_mask = current->cpus_allowed;
-        cpus_clear(covered_cpus);
-        for_each_cpu_mask(j, online_policy_cpus) {
-                /*
-                 * Support for SMP systems.
-                 * Make sure we are running on CPU that wants to change freq
-                 */
-                cpus_clear(set_mask);
-                if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY)
-                        cpus_or(set_mask, set_mask, online_policy_cpus);
-                else
-                        cpu_set(j, set_mask);
-
-                set_cpus_allowed(current, set_mask);
-                if (unlikely(!cpu_isset(smp_processor_id(), set_mask))) {
-                        dprintk("couldn't limit to CPUs in this domain\n");
-                        result = -EAGAIN;
-                        break;
-                }
+        switch (data->cpu_feature) {
+        case SYSTEM_INTEL_MSR_CAPABLE:
+                cmd.type = SYSTEM_INTEL_MSR_CAPABLE;
+                cmd.addr.msr.reg = MSR_IA32_PERF_CTL;
+                msr =
+                    (u32) perf->states[next_perf_state].
+                    control & INTEL_MSR_RANGE;
+                cmd.val = (cmd.val & ~INTEL_MSR_RANGE) | msr;
+                break;
+        case SYSTEM_IO_CAPABLE:
+                cmd.type = SYSTEM_IO_CAPABLE;
+                cmd.addr.io.port = perf->control_register.address;
+                cmd.addr.io.bit_width = perf->control_register.bit_width;
+                cmd.val = (u32) perf->states[next_perf_state].control;
+                break;
+        default:
+                return -ENODEV;
+        }
 
-                result = acpi_processor_set_performance (data, j, next_state);
-                if (result) {
-                        result = -EAGAIN;
-                        break;
-                }
+        cpus_clear(cmd.mask);
 
-                if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY)
-                        break;
- 
-                cpu_set(j, covered_cpus);
-        }
+        if (policy->shared_type != CPUFREQ_SHARED_TYPE_ANY)
+                cmd.mask = online_policy_cpus;
+        else
+                cpu_set(policy->cpu, cmd.mask);
 
-        for_each_cpu_mask(j, online_policy_cpus) {
-                freqs.cpu = j;
-                cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+        freqs.old = data->freq_table[perf->state].frequency;
+        freqs.new = data->freq_table[next_perf_state].frequency;
+        for_each_cpu_mask(i, cmd.mask) {
+                freqs.cpu = i;
+                cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
         }
 
-        if (unlikely(result)) {
-                /*
-                 * We have failed halfway through the frequency change.
-                 * We have sent callbacks to online_policy_cpus and
-                 * acpi_processor_set_performance() has been called on 
-                 * coverd_cpus. Best effort undo..
-                 */
-
-                if (!cpus_empty(covered_cpus)) {
-                        for_each_cpu_mask(j, covered_cpus) {
-                                policy->cpu = j;
-                                acpi_processor_set_performance (data, 
-                                                j, 
-                                                cur_state);
-                        }
-                }
+        drv_write(&cmd);
 
-                tmp = freqs.new;
-                freqs.new = freqs.old;
-                freqs.old = tmp;
-                for_each_cpu_mask(j, online_policy_cpus) {
-                        freqs.cpu = j;
-                        cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-                        cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+        if (acpi_pstate_strict) {
+                if (!check_freqs(cmd.mask, freqs.new, data)) {
+                        dprintk("acpi_cpufreq_target failed (%d)\n",
+                                policy->cpu);
+                        return -EAGAIN;
                 }
         }
 
-        set_cpus_allowed(current, saved_mask);
-        return (result);
-}
+        for_each_cpu_mask(i, cmd.mask) {
+                freqs.cpu = i;
+                cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+        }
+        perf->state = next_perf_state;
 
+        return result;
+}
 
-static int
-acpi_cpufreq_verify (
-        struct cpufreq_policy   *policy)
+static int acpi_cpufreq_verify(struct cpufreq_policy *policy)
 {
-        unsigned int result = 0;
-        struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
+        struct acpi_cpufreq_data *data = drv_data[policy->cpu];
 
         dprintk("acpi_cpufreq_verify\n");
 
-        result = cpufreq_frequency_table_verify(policy, 
-                        data->freq_table);
-
-        return (result);
+        return cpufreq_frequency_table_verify(policy, data->freq_table);
 }
 
-
 static unsigned long
-acpi_cpufreq_guess_freq (
-        struct cpufreq_acpi_io  *data,
-        unsigned int            cpu)
+acpi_cpufreq_guess_freq(struct acpi_cpufreq_data *data, unsigned int cpu)
 {
-        struct acpi_processor_performance       *perf = data->acpi_data;
+        struct acpi_processor_performance *perf = data->acpi_data;
 
         if (cpu_khz) {
                 /* search the closest match to cpu_khz */
@@ -338,16 +502,16 @@ acpi_cpufreq_guess_freq (
                 unsigned long freq;
                 unsigned long freqn = perf->states[0].core_frequency * 1000;
 
-                for (i = 0; i < (perf->state_count - 1); i++) {
+                for (i=0; i<(perf->state_count-1); i++) {
                         freq = freqn;
                         freqn = perf->states[i+1].core_frequency * 1000;
                         if ((2 * cpu_khz) > (freqn + freq)) {
                                 perf->state = i;
-                                return (freq);
+                                return freq;
                         }
                 }
-                perf->state = perf->state_count - 1;
-                return (freqn);
+                perf->state = perf->state_count-1;
+                return freqn;
         } else {
                 /* assume CPU is at P0... */
                 perf->state = 0;
@@ -355,7 +519,6 @@ acpi_cpufreq_guess_freq (
         }
 }
 
-
 /*
  * acpi_cpufreq_early_init - initialize ACPI P-States library
  *
@@ -364,30 +527,34 @@ acpi_cpufreq_guess_freq (
  * do _PDC and _PSD and find out the processor dependency for the
  * actual init that will happen later...
  */
-static int acpi_cpufreq_early_init_acpi(void)
+static int acpi_cpufreq_early_init(void)
 {
-        struct acpi_processor_performance       *data;
-        unsigned int                            i, j;
+        struct acpi_processor_performance *data;
+        cpumask_t covered;
+        unsigned int i, j;
 
         dprintk("acpi_cpufreq_early_init\n");
 
         for_each_possible_cpu(i) {
-                data = kzalloc(sizeof(struct acpi_processor_performance), 
-                        GFP_KERNEL);
+                data = kzalloc(sizeof(struct acpi_processor_performance),
+                               GFP_KERNEL);
                 if (!data) {
-                        for_each_possible_cpu(j) {
+                        for_each_cpu_mask(j, covered) {
                                 kfree(acpi_perf_data[j]);
                                 acpi_perf_data[j] = NULL;
                         }
-                        return (-ENOMEM);
+                        return -ENOMEM;
                 }
                 acpi_perf_data[i] = data;
+                cpu_set(i, covered);
         }
 
         /* Do initialization in ACPI core */
-        return acpi_processor_preregister_performance(acpi_perf_data);
+        acpi_processor_preregister_performance(acpi_perf_data);
+        return 0;
 }
 
+#ifdef CONFIG_SMP
 /*
  * Some BIOSes do SW_ANY coordination internally, either set it up in hw
  * or do it in BIOS firmware and won't inform about it to OS. If not
@@ -414,39 +581,42 @@ static struct dmi_system_id sw_any_bug_dmi_table[] = {
         },
         { }
 };
+#endif
 
-static int
-acpi_cpufreq_cpu_init (
-        struct cpufreq_policy   *policy)
+static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-        unsigned int            i;
-        unsigned int            cpu = policy->cpu;
-        struct cpufreq_acpi_io  *data;
-        unsigned int            result = 0;
+        unsigned int i;
+        unsigned int valid_states = 0;
+        unsigned int cpu = policy->cpu;
+        struct acpi_cpufreq_data *data;
+        unsigned int result = 0;
         struct cpuinfo_x86 *c = &cpu_data[policy->cpu];
-        struct acpi_processor_performance       *perf;
+        struct acpi_processor_performance *perf;
 
         dprintk("acpi_cpufreq_cpu_init\n");
 
         if (!acpi_perf_data[cpu])
-                return (-ENODEV);
+                return -ENODEV;
 
-        data = kzalloc(sizeof(struct cpufreq_acpi_io), GFP_KERNEL);
+        data = kzalloc(sizeof(struct acpi_cpufreq_data), GFP_KERNEL);
         if (!data)
-                return (-ENOMEM);
+                return -ENOMEM;
 
         data->acpi_data = acpi_perf_data[cpu];
-        acpi_io_data[cpu] = data;
+        drv_data[cpu] = data;
 
-        result = acpi_processor_register_performance(data->acpi_data, cpu);
+        if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
+                acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
 
+        result = acpi_processor_register_performance(data->acpi_data, cpu);
         if (result)
                 goto err_free;
 
         perf = data->acpi_data;
         policy->shared_type = perf->shared_type;
+
         /*
-         * Will let policy->cpus know about dependency only when software 
+         * Will let policy->cpus know about dependency only when software
          * coordination is required.
          */
         if (policy->shared_type == CPUFREQ_SHARED_TYPE_ALL ||
@@ -462,10 +632,6 @@ acpi_cpufreq_cpu_init (
         }
 #endif
 
-        if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
-                acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
-        }
-
         /* capability check */
         if (perf->state_count <= 1) {
                 dprintk("No P-States\n");
@@ -473,17 +639,33 @@ acpi_cpufreq_cpu_init (
                 goto err_unreg;
         }
 
-        if ((perf->control_register.space_id != ACPI_ADR_SPACE_SYSTEM_IO) ||
-            (perf->status_register.space_id != ACPI_ADR_SPACE_SYSTEM_IO)) {
-                dprintk("Unsupported address space [%d, %d]\n",
-                        (u32) (perf->control_register.space_id),
-                        (u32) (perf->status_register.space_id));
+        if (perf->control_register.space_id != perf->status_register.space_id) {
+                result = -ENODEV;
+                goto err_unreg;
+        }
+
+        switch (perf->control_register.space_id) {
+        case ACPI_ADR_SPACE_SYSTEM_IO:
+                dprintk("SYSTEM IO addr space\n");
+                data->cpu_feature = SYSTEM_IO_CAPABLE;
+                break;
+        case ACPI_ADR_SPACE_FIXED_HARDWARE:
+                dprintk("HARDWARE addr space\n");
+                if (!check_est_cpu(cpu)) {
+                        result = -ENODEV;
+                        goto err_unreg;
+                }
+                data->cpu_feature = SYSTEM_INTEL_MSR_CAPABLE;
+                break;
+        default:
+                dprintk("Unknown addr space %d\n",
+                        (u32) (perf->control_register.space_id));
                 result = -ENODEV;
                 goto err_unreg;
         }
 
-        /* alloc freq_table */
-        data->freq_table = kmalloc(sizeof(struct cpufreq_frequency_table) * (perf->state_count + 1), GFP_KERNEL);
+        data->freq_table = kmalloc(sizeof(struct cpufreq_frequency_table) *
+                    (perf->state_count+1), GFP_KERNEL);
         if (!data->freq_table) {
                 result = -ENOMEM;
                 goto err_unreg;
@@ -492,129 +674,140 @@ acpi_cpufreq_cpu_init (
         /* detect transition latency */
         policy->cpuinfo.transition_latency = 0;
         for (i=0; i<perf->state_count; i++) {
-                if ((perf->states[i].transition_latency * 1000) > policy->cpuinfo.transition_latency)
-                        policy->cpuinfo.transition_latency = perf->states[i].transition_latency * 1000;
+                if ((perf->states[i].transition_latency * 1000) >
+                    policy->cpuinfo.transition_latency)
+                        policy->cpuinfo.transition_latency =
+                            perf->states[i].transition_latency * 1000;
         }
         policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
 
-        /* The current speed is unknown and not detectable by ACPI...  */
-        policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
-
+        data->max_freq = perf->states[0].core_frequency * 1000;
         /* table init */
-        for (i=0; i<=perf->state_count; i++)
-        {
-                data->freq_table[i].index = i;
-                if (i<perf->state_count)
-                        data->freq_table[i].frequency = perf->states[i].core_frequency * 1000;
-                else
-                        data->freq_table[i].frequency = CPUFREQ_TABLE_END;
+        for (i=0; i<perf->state_count; i++) {
+                if (i>0 && perf->states[i].core_frequency ==
+                    perf->states[i-1].core_frequency)
+                        continue;
+
+                data->freq_table[valid_states].index = i;
+                data->freq_table[valid_states].frequency =
+                    perf->states[i].core_frequency * 1000;
+                valid_states++;
         }
+        data->freq_table[valid_states].frequency = CPUFREQ_TABLE_END;
 
         result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table);
-        if (result) {
+        if (result)
                 goto err_freqfree;
+
+        switch (data->cpu_feature) {
+        case ACPI_ADR_SPACE_SYSTEM_IO:
+                /* Current speed is unknown and not detectable by IO port */
+                policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
+                break;
+        case ACPI_ADR_SPACE_FIXED_HARDWARE:
+                acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
+                get_cur_freq_on_cpu(cpu);
+                break;
+        default:
+                break;
         }
 
         /* notify BIOS that we exist */
         acpi_processor_notify_smm(THIS_MODULE);
 
-        printk(KERN_INFO "acpi-cpufreq: CPU%u - ACPI performance management activated.\n",
-               cpu);
+        /* Check for APERF/MPERF support in hardware */
+        if (c->x86_vendor == X86_VENDOR_INTEL && c->cpuid_level >= 6) {
+                unsigned int ecx;
+                ecx = cpuid_ecx(6);
+                if (ecx & CPUID_6_ECX_APERFMPERF_CAPABILITY)
+                        acpi_cpufreq_driver.getavg = get_measured_perf;
+        }
+
+        dprintk("CPU%u - ACPI performance management activated.\n", cpu);
         for (i = 0; i < perf->state_count; i++)
                 dprintk("     %cP%d: %d MHz, %d mW, %d uS\n",
-                        (i == perf->state?'*':' '), i,
+                        (i == perf->state ? '*' : ' '), i,
                         (u32) perf->states[i].core_frequency,
                         (u32) perf->states[i].power,
                         (u32) perf->states[i].transition_latency);
 
         cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu);
-        
+
         /*
          * the first call to ->target() should result in us actually
          * writing something to the appropriate registers.
          */
         data->resume = 1;
-        
-        return (result);
 
- err_freqfree:
+        return result;
+
+err_freqfree:
         kfree(data->freq_table);
- err_unreg:
+err_unreg:
         acpi_processor_unregister_performance(perf, cpu);
- err_free:
+err_free:
         kfree(data);
-        acpi_io_data[cpu] = NULL;
+        drv_data[cpu] = NULL;
 
-        return (result);
+        return result;
 }
 
-
-static int
-acpi_cpufreq_cpu_exit (
-        struct cpufreq_policy   *policy)
+static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 {
-        struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
-
+        struct acpi_cpufreq_data *data = drv_data[policy->cpu];
 
         dprintk("acpi_cpufreq_cpu_exit\n");
 
         if (data) {
                 cpufreq_frequency_table_put_attr(policy->cpu);
-                acpi_io_data[policy->cpu] = NULL;
-                acpi_processor_unregister_performance(data->acpi_data, policy->cpu);
+                drv_data[policy->cpu] = NULL;
+                acpi_processor_unregister_performance(data->acpi_data,
+                                                      policy->cpu);
                 kfree(data);
         }
 
-        return (0);
+        return 0;
 }
 
-static int
-acpi_cpufreq_resume (
-        struct cpufreq_policy   *policy)
+static int acpi_cpufreq_resume(struct cpufreq_policy *policy)
 {
-        struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
-
+        struct acpi_cpufreq_data *data = drv_data[policy->cpu];
 
         dprintk("acpi_cpufreq_resume\n");
 
         data->resume = 1;
 
-        return (0);
+        return 0;
 }
 
-
-static struct freq_attr* acpi_cpufreq_attr[] = {
+static struct freq_attr *acpi_cpufreq_attr[] = {
         &cpufreq_freq_attr_scaling_available_freqs,
         NULL,
 };
 
 static struct cpufreq_driver acpi_cpufreq_driver = {
-        .verify = acpi_cpufreq_verify,
-        .target = acpi_cpufreq_target,
-        .init   = acpi_cpufreq_cpu_init,
-        .exit   = acpi_cpufreq_cpu_exit,
-        .resume = acpi_cpufreq_resume,
-        .name   = "acpi-cpufreq",
-        .owner  = THIS_MODULE,
-        .attr   = acpi_cpufreq_attr,
+        .verify = acpi_cpufreq_verify,
+        .target = acpi_cpufreq_target,
+        .init = acpi_cpufreq_cpu_init,
+        .exit = acpi_cpufreq_cpu_exit,
+        .resume = acpi_cpufreq_resume,
+        .name = "acpi-cpufreq",
+        .owner = THIS_MODULE,
+        .attr = acpi_cpufreq_attr,
 };
 
-
-static int __init
-acpi_cpufreq_init (void)
+static int __init acpi_cpufreq_init(void)
 {
         dprintk("acpi_cpufreq_init\n");
 
-        acpi_cpufreq_early_init_acpi();
+        acpi_cpufreq_early_init();
 
         return cpufreq_register_driver(&acpi_cpufreq_driver);
 }
 
-
-static void __exit
-acpi_cpufreq_exit (void)
+static void __exit acpi_cpufreq_exit(void)
 {
-        unsigned int    i;
+        unsigned int i;
         dprintk("acpi_cpufreq_exit\n");
 
         cpufreq_unregister_driver(&acpi_cpufreq_driver);
@@ -627,7 +820,9 @@ acpi_cpufreq_exit (void)
 }
 
 module_param(acpi_pstate_strict, uint, 0644);
-MODULE_PARM_DESC(acpi_pstate_strict, "value 0 or non-zero. non-zero -> strict ACPI checks are performed during frequency changes.");
+MODULE_PARM_DESC(acpi_pstate_strict,
+        "value 0 or non-zero. non-zero -> strict ACPI checks are "
+        "performed during frequency changes.");
 
 late_initcall(acpi_cpufreq_init);
 module_exit(acpi_cpufreq_exit);
diff --git a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
index 92afa3bc84f1..6667e9cceb9f 100644
--- a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
@@ -447,7 +447,6 @@ static int __init cpufreq_gx_init(void)
         int ret;
         struct gxfreq_params *params;
         struct pci_dev *gx_pci;
-        u32 class_rev;
 
         /* Test if we have the right hardware */
         if ((gx_pci = gx_detect_chipset()) == NULL)
@@ -472,8 +471,7 @@ static int __init cpufreq_gx_init(void)
         pci_read_config_byte(params->cs55x0, PCI_PMER2, &(params->pci_pmer2));
         pci_read_config_byte(params->cs55x0, PCI_MODON, &(params->on_duration));
         pci_read_config_byte(params->cs55x0, PCI_MODOFF, &(params->off_duration));
-        pci_read_config_dword(params->cs55x0, PCI_CLASS_REVISION, &class_rev);
-        params->pci_rev = class_rev && 0xff;
+        pci_read_config_byte(params->cs55x0, PCI_REVISION_ID, &params->pci_rev);
 
         if ((ret = cpufreq_register_driver(&gx_suspmod_driver))) {
                 kfree(params);
diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c
index 7233abe5d695..c548daad3476 100644
--- a/arch/i386/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c
@@ -410,7 +410,7 @@ static int __init longhaul_get_ranges(void)
                         maxmult=longhaul_get_cpu_mult();
 
                         /* Starting with the 1.2GHz parts, theres a 200MHz bus. */
-                        if ((cpu_khz/1000) > 1200)
+                        if ((cpu_khz/maxmult) > 13400)
                                 fsb = 200;
                         else
                                 fsb = eblcr_fsb_table_v2[longhaul.bits.MaxMHzFSB];
@@ -583,6 +583,10 @@ static int enable_arbiter_disable(void)
         if (dev == NULL) {
                 reg = 0x76;
                 dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_862X_0, NULL);
+                /* Find CN400 V-Link host bridge */
+                if (dev == NULL)
+                        dev = pci_find_device(PCI_VENDOR_ID_VIA, 0x7259, NULL);
+
         }
         if (dev != NULL) {
                 /* Enable access to port 0x22 */
@@ -734,7 +738,7 @@ print_support_type:
         return 0;
 
 err_acpi:
-        printk(KERN_ERR PFX "No ACPI support. No VT8601 or VT8623 northbridge. Aborting.\n");
+        printk(KERN_ERR PFX "No ACPI support. Unsupported northbridge. Aborting.\n");
         return -ENODEV;
 }
 
diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
index 304d2eaa4a1b..bec50170b75a 100644
--- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
@@ -163,29 +163,27 @@ static int cpufreq_p4_verify(struct cpufreq_policy *policy)
 
 static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
 {
-        if ((c->x86 == 0x06) && (c->x86_model == 0x09)) {
-                /* Pentium M (Banias) */
-                printk(KERN_WARNING PFX "Warning: Pentium M detected. "
-                       "The speedstep_centrino module offers voltage scaling"
-                       " in addition of frequency scaling. You should use "
-                       "that instead of p4-clockmod, if possible.\n");
-                return speedstep_get_processor_frequency(SPEEDSTEP_PROCESSOR_PM);
-        }
-
-        if ((c->x86 == 0x06) && (c->x86_model == 0x0D)) {
-                /* Pentium M (Dothan) */
-                printk(KERN_WARNING PFX "Warning: Pentium M detected. "
-                       "The speedstep_centrino module offers voltage scaling"
-                       " in addition of frequency scaling. You should use "
-                       "that instead of p4-clockmod, if possible.\n");
-                /* on P-4s, the TSC runs with constant frequency independent whether
-                 * throttling is active or not. */
-                p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
-                return speedstep_get_processor_frequency(SPEEDSTEP_PROCESSOR_PM);
+        if (c->x86 == 0x06) {
+                if (cpu_has(c, X86_FEATURE_EST))
+                        printk(KERN_WARNING PFX "Warning: EST-capable CPU detected. "
+                               "The acpi-cpufreq module offers voltage scaling"
+                               " in addition of frequency scaling. You should use "
+                               "that instead of p4-clockmod, if possible.\n");
+                switch (c->x86_model) {
+                case 0x0E: /* Core */
+                case 0x0F: /* Core Duo */
+                        p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+                        return speedstep_get_processor_frequency(SPEEDSTEP_PROCESSOR_PCORE);
+                case 0x0D: /* Pentium M (Dothan) */
+                        p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
+                        /* fall through */
+                case 0x09: /* Pentium M (Banias) */
+                        return speedstep_get_processor_frequency(SPEEDSTEP_PROCESSOR_PM);
+                }
         }
 
         if (c->x86 != 0xF) {
-                printk(KERN_WARNING PFX "Unknown p4-clockmod-capable CPU. Please send an e-mail to <linux@brodo.de>\n");
+                printk(KERN_WARNING PFX "Unknown p4-clockmod-capable CPU. Please send an e-mail to <cpufreq@lists.linux.org.uk>\n");
                 return 0;
         }
 
diff --git a/arch/i386/kernel/cpu/cpufreq/sc520_freq.c b/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
index ef457d50f4ac..b8fb4b521c62 100644
--- a/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
+++ b/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
@@ -153,6 +153,7 @@ static struct cpufreq_driver sc520_freq_driver = {
 static int __init sc520_freq_init(void)
 {
         struct cpuinfo_x86 *c = cpu_data;
+        int err;
 
         /* Test if we have the right hardware */
         if(c->x86_vendor != X86_VENDOR_AMD ||
@@ -166,7 +167,11 @@ static int __init sc520_freq_init(void)
                 return -ENOMEM;
         }
 
-        return cpufreq_register_driver(&sc520_freq_driver);
+        err = cpufreq_register_driver(&sc520_freq_driver);
+        if (err)
+                iounmap(cpuctl);
+
+        return err;
 }
 
 
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index e8993baf3d14..5113e9231634 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -36,6 +36,7 @@
 
 #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "speedstep-centrino", msg)
 
+#define INTEL_MSR_RANGE (0xffff)
 
 struct cpu_id
 {
@@ -379,6 +380,7 @@ static int centrino_cpu_early_init_acpi(void)
 }
 
 
+#ifdef CONFIG_SMP
 /*
  * Some BIOSes do SW_ANY coordination internally, either set it up in hw
  * or do it in BIOS firmware and won't inform about it to OS. If not
@@ -392,7 +394,6 @@ static int sw_any_bug_found(struct dmi_system_id *d)
         return 0;
 }
 
-
 static struct dmi_system_id sw_any_bug_dmi_table[] = {
         {
                 .callback = sw_any_bug_found,
@@ -405,7 +406,7 @@ static struct dmi_system_id sw_any_bug_dmi_table[] = {
         },
         { }
 };
-
+#endif
 
 /*
  * centrino_cpu_init_acpi - register with ACPI P-States library
@@ -463,8 +464,9 @@ static int centrino_cpu_init_acpi(struct cpufreq_policy *policy)
         }
 
         for (i=0; i<p->state_count; i++) {
-                if (p->states[i].control != p->states[i].status) {
-                        dprintk("Different control (%llu) and status values (%llu)\n",
+                if ((p->states[i].control & INTEL_MSR_RANGE) !=
+                    (p->states[i].status & INTEL_MSR_RANGE)) {
+                        dprintk("Different MSR bits in control (%llu) and status (%llu)\n",
                                 p->states[i].control, p->states[i].status);
                         result = -EINVAL;
                         goto err_unreg;
@@ -500,7 +502,7 @@ static int centrino_cpu_init_acpi(struct cpufreq_policy *policy)
         }
 
         for (i=0; i<p->state_count; i++) {
-                centrino_model[cpu]->op_points[i].index = p->states[i].control;
+                centrino_model[cpu]->op_points[i].index = p->states[i].control & INTEL_MSR_RANGE;
                 centrino_model[cpu]->op_points[i].frequency = p->states[i].core_frequency * 1000;
                 dprintk("adding state %i with frequency %u and control value %04x\n", 
                         i, centrino_model[cpu]->op_points[i].frequency, centrino_model[cpu]->op_points[i].index);
@@ -531,6 +533,9 @@ static int centrino_cpu_init_acpi(struct cpufreq_policy *policy)
 
         /* notify BIOS that we exist */
         acpi_processor_notify_smm(THIS_MODULE);
+        printk("speedstep-centrino with X86_SPEEDSTEP_CENTRINO_ACPI"
+                        "config is deprecated.\n "
+                        "Use X86_ACPI_CPUFREQ (acpi-cpufreq instead.\n" );
 
         return 0;
 
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
index 4f46cac155c4..d59277c00911 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
@@ -123,6 +123,36 @@ static unsigned int pentiumM_get_frequency(void)
         return (msr_tmp * 100 * 1000);
 }
 
+static unsigned int pentium_core_get_frequency(void)
+{
+        u32 fsb = 0;
+        u32 msr_lo, msr_tmp;
+
+        rdmsr(MSR_FSB_FREQ, msr_lo, msr_tmp);
+        /* see table B-2 of 25366920.pdf */
+        switch (msr_lo & 0x07) {
+        case 5:
+                fsb = 100000;
+                break;
+        case 1:
+                fsb = 133333;
+                break;
+        case 3:
+                fsb = 166667;
+                break;
+        default:
+                printk(KERN_ERR "PCORE - MSR_FSB_FREQ undefined value");
+        }
+
+        rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp);
+        dprintk("PCORE - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp);
+
+        msr_tmp = (msr_lo >> 22) & 0x1f;
+        dprintk("bits 22-26 are 0x%x, speed is %u\n", msr_tmp, (msr_tmp * fsb));
+
+        return (msr_tmp * fsb);
+}
+
 
 static unsigned int pentium4_get_frequency(void)
 {
@@ -174,6 +204,8 @@ static unsigned int pentium4_get_frequency(void)
 unsigned int speedstep_get_processor_frequency(unsigned int processor)
 {
         switch (processor) {
+        case SPEEDSTEP_PROCESSOR_PCORE:
+                return pentium_core_get_frequency();
         case SPEEDSTEP_PROCESSOR_PM:
                 return pentiumM_get_frequency();
         case SPEEDSTEP_PROCESSOR_P4D:
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h
index b735429c50b4..b11bcc608cac 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.h
@@ -22,6 +22,7 @@
  * the speedstep_get_processor_frequency() call. */
 #define SPEEDSTEP_PROCESSOR_PM                  0xFFFFFF03  /* Pentium M  */
 #define SPEEDSTEP_PROCESSOR_P4D                 0xFFFFFF04  /* desktop P4  */
+#define SPEEDSTEP_PROCESSOR_PCORE               0xFFFFFF05  /* Core */
 
 /* speedstep states -- only two of them */
 
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
index c28333d53646..ff0d89806114 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
@@ -360,9 +360,6 @@ static int __init speedstep_init(void)
         case SPEEDSTEP_PROCESSOR_PIII_C:
         case SPEEDSTEP_PROCESSOR_PIII_C_EARLY:
                 break;
-        case SPEEDSTEP_PROCESSOR_P4M:
-                printk(KERN_INFO "speedstep-smi: you're trying to use this cpufreq driver on a Pentium 4-based CPU. Most likely it will not work.\n");
-                break;
         default:
                 speedstep_processor = 0;
         }
diff --git a/arch/powerpc/platforms/4xx/Kconfig b/arch/powerpc/platforms/4xx/Kconfig
index ed39d6a3d22a..2f2a13ed7667 100644
--- a/arch/powerpc/platforms/4xx/Kconfig
+++ b/arch/powerpc/platforms/4xx/Kconfig
@@ -179,7 +179,7 @@ config BIOS_FIXUP
 # OAK doesn't exist but wanted to keep this around for any future 403GCX boards
 config 403GCX
         bool
-        depends OAK
+        depends on OAK
         default y
 
 config 405EP
diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig
index ddbe398fbd48..b3c2ce4cb7a8 100644
--- a/arch/powerpc/platforms/embedded6xx/Kconfig
+++ b/arch/powerpc/platforms/embedded6xx/Kconfig
@@ -35,7 +35,7 @@ config HDPU
           Select HDPU if configuring a Sky Computers Compute Blade.
 
 config HDPU_FEATURES
-        depends HDPU
+        depends on HDPU
         tristate "HDPU-Features"
         help
           Select to enable HDPU enhanced features.
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 692b5ba53209..8eb82efe05a1 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -624,7 +624,7 @@ config HDPU
           Select HDPU if configuring a Sky Computers Compute Blade.
 
 config HDPU_FEATURES
-        depends HDPU
+        depends on HDPU
         tristate "HDPU-Features"
         help
           Select to enable HDPU enhanced features.
@@ -735,7 +735,7 @@ config LITE5200
 
 config LITE5200B
         bool "Freescale LITE5200B"
-        depends LITE5200
+        depends on LITE5200
         help
           Support for the LITE5200B dev board for the MPC5200 from Freescale.
           This is the new board with 2 PCI slots.
diff --git a/arch/ppc/platforms/4xx/Kconfig b/arch/ppc/platforms/4xx/Kconfig
index 293bd489e7d9..6980de420e92 100644
--- a/arch/ppc/platforms/4xx/Kconfig
+++ b/arch/ppc/platforms/4xx/Kconfig
@@ -189,7 +189,7 @@ config BIOS_FIXUP
 # OAK doesn't exist but wanted to keep this around for any future 403GCX boards
 config 403GCX
         bool
-        depends OAK
+        depends on OAK
         default y
 
 config 405EP
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 286bc0b3207f..b2e9762e13c5 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -334,13 +334,12 @@ static int eth_configure(int n, void *init, char *mac,
         size = transport->private_size + sizeof(struct uml_net_private) + 
                 sizeof(((struct uml_net_private *) 0)->user);
 
-        device = kmalloc(sizeof(*device), GFP_KERNEL);
+        device = kzalloc(sizeof(*device), GFP_KERNEL);
         if (device == NULL) {
                 printk(KERN_ERR "eth_configure failed to allocate uml_net\n");
                 return(1);
         }
 
-        memset(device, 0, sizeof(*device));
         INIT_LIST_HEAD(&device->list);
         device->index = n;
 
diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig
index bcf825875d17..f0d4d72e560f 100644
--- a/arch/v850/Kconfig
+++ b/arch/v850/Kconfig
@@ -105,17 +105,17 @@ menu "Processor type and features"
    # currently support
    config V850E_MA1
           bool
-          depends RTE_CB_MA1
+          depends on RTE_CB_MA1
           default y
    # Similarly for the RTE-V850E/NB85E-CB - V850E/TEG
    config V850E_TEG
           bool
-          depends RTE_CB_NB85E
+          depends on RTE_CB_NB85E
           default y
    # ... and the RTE-V850E/ME2-CB - V850E/ME2
    config V850E_ME2
           bool
-          depends RTE_CB_ME2
+          depends on RTE_CB_ME2
           default y
 
 
@@ -123,7 +123,7 @@ menu "Processor type and features"
 
    config V850E2_SIM85E2
           bool
-          depends V850E2_SIM85E2C || V850E2_SIM85E2S
+          depends on V850E2_SIM85E2C || V850E2_SIM85E2S
           default y
 
 
@@ -132,7 +132,7 @@ menu "Processor type and features"
    # V850E2 processors
    config V850E2
           bool
-          depends V850E2_SIM85E2 || V850E2_FPGA85E2C || V850E2_ANNA
+          depends on V850E2_SIM85E2 || V850E2_FPGA85E2C || V850E2_ANNA
           default y
 
 
@@ -141,7 +141,7 @@ menu "Processor type and features"
    # Boards in the RTE-x-CB series
    config RTE_CB
           bool
-          depends RTE_CB_MA1 || RTE_CB_NB85E || RTE_CB_ME2
+          depends on RTE_CB_MA1 || RTE_CB_NB85E || RTE_CB_ME2
           default y
 
    config RTE_CB_MULTI
@@ -149,28 +149,28 @@ menu "Processor type and features"
           # RTE_CB_NB85E can either have multi ROM support or not, but
           # other platforms (currently only RTE_CB_MA1) require it.
           prompt "Multi monitor ROM support" if RTE_CB_NB85E
-          depends RTE_CB_MA1 || RTE_CB_NB85E
+          depends on RTE_CB_MA1 || RTE_CB_NB85E
           default y
 
    config RTE_CB_MULTI_DBTRAP
           bool "Pass illegal insn trap / dbtrap to kernel"
-          depends RTE_CB_MULTI
+          depends on RTE_CB_MULTI
           default n
 
    config RTE_CB_MA1_KSRAM
           bool "Kernel in SRAM (limits size of kernel)"
-          depends RTE_CB_MA1 && RTE_CB_MULTI
+          depends on RTE_CB_MA1 && RTE_CB_MULTI
           default n
 
    config RTE_MB_A_PCI
           bool "Mother-A PCI support"
-          depends RTE_CB
+          depends on RTE_CB
           default y
 
    # The GBUS is used to talk to the RTE-MOTHER-A board
    config RTE_GBUS_INT
           bool
-          depends RTE_MB_A_PCI
+          depends on RTE_MB_A_PCI
           default y
 
    # The only PCI bus we support is on the RTE-MOTHER-A board
@@ -209,7 +209,7 @@ menu "Processor type and features"
 
    config ROM_KERNEL
           bool "Kernel in ROM"
-          depends V850E2_ANNA || V850E_AS85EP1 || RTE_CB_ME2
+          depends on V850E2_ANNA || V850E_AS85EP1 || RTE_CB_ME2
 
    # Some platforms pre-zero memory, in which case the kernel doesn't need to
    config ZERO_BSS
@@ -225,10 +225,10 @@ menu "Processor type and features"
 
    config V850E_HIGHRES_TIMER
           bool "High resolution timer support"
-          depends V850E_TIMER_D
+          depends on V850E_TIMER_D
    config TIME_BOOTUP
           bool "Time bootup"
-          depends V850E_HIGHRES_TIMER
+          depends on V850E_HIGHRES_TIMER
 
    config RESET_GUARD
           bool "Reset Guard"
diff --git a/arch/x86_64/kernel/cpufreq/Kconfig b/arch/x86_64/kernel/cpufreq/Kconfig
index 81f1562e5393..3abcfa3e1ed7 100644
--- a/arch/x86_64/kernel/cpufreq/Kconfig
+++ b/arch/x86_64/kernel/cpufreq/Kconfig
@@ -27,10 +27,13 @@ config X86_POWERNOW_K8_ACPI
         default y
 
 config X86_SPEEDSTEP_CENTRINO
-        tristate "Intel Enhanced SpeedStep"
+        tristate "Intel Enhanced SpeedStep (deprecated)"
         select CPU_FREQ_TABLE
         depends on ACPI_PROCESSOR
         help
+          This is deprecated and this functionality is now merged into
+          acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of
+          speedstep_centrino.
           This adds the CPUFreq driver for Enhanced SpeedStep enabled
           mobile CPUs.  This means Intel Pentium M (Centrino) CPUs
           or 64bit enabled Intel Xeons.
@@ -50,6 +53,7 @@ config X86_ACPI_CPUFREQ
         help
           This driver adds a CPUFreq driver which utilizes the ACPI
           Processor Performance States.
+          This driver also supports Intel Enhanced Speedstep.
 
           For details, take a look at <file:Documentation/cpu-freq/>.
 
diff --git a/arch/x86_64/kernel/cpufreq/Makefile b/arch/x86_64/kernel/cpufreq/Makefile
index d8b593879224..753ce1dd418e 100644
--- a/arch/x86_64/kernel/cpufreq/Makefile
+++ b/arch/x86_64/kernel/cpufreq/Makefile
@@ -5,8 +5,8 @@
 SRCDIR := ../../../i386/kernel/cpu/cpufreq
 
 obj-$(CONFIG_X86_POWERNOW_K8) += powernow-k8.o
-obj-$(CONFIG_X86_SPEEDSTEP_CENTRINO) += speedstep-centrino.o
 obj-$(CONFIG_X86_ACPI_CPUFREQ) += acpi-cpufreq.o
+obj-$(CONFIG_X86_SPEEDSTEP_CENTRINO) += speedstep-centrino.o
 obj-$(CONFIG_X86_P4_CLOCKMOD) += p4-clockmod.o
 obj-$(CONFIG_X86_SPEEDSTEP_LIB) += speedstep-lib.o
 
diff --git a/drivers/acorn/char/i2c.c b/drivers/acorn/char/i2c.c
index bdb9c8b78ed8..9e584a7af434 100644
--- a/drivers/acorn/char/i2c.c
+++ b/drivers/acorn/char/i2c.c
@@ -360,7 +360,7 @@ static int __init i2c_ioc_init(void)
         if (ret >= 0){
                 ret = misc_register(&rtc_dev);
                 if(ret < 0)
-                        i2c_bit_del_bus(&ioc_ops);
+                        i2c_del_adapter(&ioc_ops);
         }
 
         return ret;
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index b10f4d8fdc7f..0a3aee29e067 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -867,7 +867,7 @@ config SONYPI
 
 config TANBAC_TB0219
         tristate "TANBAC TB0219 base board support"
-        depends TANBAC_TB022X
+        depends on TANBAC_TB022X
         select GPIO_VR41XX
 
 source "drivers/char/agp/Kconfig"
diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index c603bf291580..a9f9c48c2424 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -86,7 +86,7 @@ config AGP_NVIDIA
 
 config AGP_SIS
         tristate "SiS chipset support"
-        depends on AGP
+        depends on AGP && X86
         help
           This option gives you AGP support for the GLX component of
           X on Silicon Integrated Systems [SiS] chipsets.
@@ -103,7 +103,7 @@ config AGP_SWORKS
 
 config AGP_VIA
         tristate "VIA chipset support"
-        depends on AGP
+        depends on AGP && X86
         help
           This option gives you AGP support for the GLX component of
           X on VIA MVP3/Apollo Pro chipsets.
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 5ff457b41efb..883a36a27833 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -419,6 +419,31 @@ static void agp_v2_parse_one(u32 *requested_mode, u32 *bridge_agpstat, u32 *vga_
                 *requested_mode &= ~AGP2_RESERVED_MASK;
         }
 
+        /*
+         * Some dumb bridges are programmed to disobey the AGP2 spec.
+         * This is likely a BIOS misprogramming rather than poweron default, or
+         * it would be a lot more common.
+         * https://bugs.freedesktop.org/show_bug.cgi?id=8816
+         * AGPv2 spec 6.1.9 states:
+         *   The RATE field indicates the data transfer rates supported by this
+         *   device. A.G.P. devices must report all that apply.
+         * Fix them up as best we can.
+         */
+        switch (*bridge_agpstat & 7) {
+        case 4:
+                *bridge_agpstat |= (AGPSTAT2_2X | AGPSTAT2_1X);
+                printk(KERN_INFO PFX "BIOS bug. AGP bridge claims to only support x4 rate"
+                        "Fixing up support for x2 & x1\n");
+                break;
+        case 2:
+                *bridge_agpstat |= AGPSTAT2_1X;
+                printk(KERN_INFO PFX "BIOS bug. AGP bridge claims to only support x2 rate"
+                        "Fixing up support for x1\n");
+                break;
+        default:
+                break;
+        }
+
         /* Check the speed bits make sense. Only one should be set. */
         tmp = *requested_mode & 7;
         switch (tmp) {
diff --git a/drivers/char/watchdog/at91rm9200_wdt.c b/drivers/char/watchdog/at91rm9200_wdt.c
index cb86967e2c5f..38bd37372599 100644
--- a/drivers/char/watchdog/at91rm9200_wdt.c
+++ b/drivers/char/watchdog/at91rm9200_wdt.c
@@ -203,9 +203,9 @@ static int __init at91wdt_probe(struct platform_device *pdev)
 {
         int res;
 
-        if (at91wdt_miscdev.dev)
+        if (at91wdt_miscdev.parent)
                 return -EBUSY;
-        at91wdt_miscdev.dev = &pdev->dev;
+        at91wdt_miscdev.parent = &pdev->dev;
 
         res = misc_register(&at91wdt_miscdev);
         if (res)
@@ -221,7 +221,7 @@ static int __exit at91wdt_remove(struct platform_device *pdev)
 
         res = misc_deregister(&at91wdt_miscdev);
         if (!res)
-                at91wdt_miscdev.dev = NULL;
+                at91wdt_miscdev.parent = NULL;
 
         return res;
 }
diff --git a/drivers/char/watchdog/mpcore_wdt.c b/drivers/char/watchdog/mpcore_wdt.c
index 3404a9c67f08..e88947f8fe53 100644
--- a/drivers/char/watchdog/mpcore_wdt.c
+++ b/drivers/char/watchdog/mpcore_wdt.c
@@ -347,7 +347,7 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev)
                 goto err_free;
         }
 
-        mpcore_wdt_miscdev.dev = &dev->dev;
+        mpcore_wdt_miscdev.parent = &dev->dev;
         ret = misc_register(&mpcore_wdt_miscdev);
         if (ret) {
                 dev_printk(KERN_ERR, _dev, "cannot register miscdev on minor=%d (err=%d)\n",
diff --git a/drivers/char/watchdog/omap_wdt.c b/drivers/char/watchdog/omap_wdt.c
index 5dbd7dc2936f..6c6f97332dbb 100644
--- a/drivers/char/watchdog/omap_wdt.c
+++ b/drivers/char/watchdog/omap_wdt.c
@@ -290,7 +290,7 @@ static int __init omap_wdt_probe(struct platform_device *pdev)
         omap_wdt_disable();
         omap_wdt_adjust_timeout(timer_margin);
 
-        omap_wdt_miscdev.dev = &pdev->dev;
+        omap_wdt_miscdev.parent = &pdev->dev;
         ret = misc_register(&omap_wdt_miscdev);
         if (ret)
                 goto fail;
diff --git a/drivers/char/watchdog/pcwd_usb.c b/drivers/char/watchdog/pcwd_usb.c
index 61138726b501..2da5ac99687c 100644
--- a/drivers/char/watchdog/pcwd_usb.c
+++ b/drivers/char/watchdog/pcwd_usb.c
@@ -42,6 +42,7 @@
 #include <asm/uaccess.h>
 #include <linux/usb.h>
 #include <linux/mutex.h>
+#include <linux/hid.h>          /* For HID_REQ_SET_REPORT & HID_DT_REPORT */
 
 
 #ifdef CONFIG_USB_DEBUG
@@ -109,10 +110,6 @@ MODULE_DEVICE_TABLE (usb, usb_pcwd_table);
 #define CMD_ENABLE_WATCHDOG             0x30    /* Enable / Disable Watchdog */
 #define CMD_DISABLE_WATCHDOG            CMD_ENABLE_WATCHDOG
 
-/* Some defines that I like to be somewhere else like include/linux/usb_hid.h */
-#define HID_REQ_SET_REPORT              0x09
-#define HID_DT_REPORT                   (USB_TYPE_CLASS | 0x02)
-
 /* We can only use 1 card due to the /dev/watchdog restriction */
 static int cards_found;
 
diff --git a/drivers/char/watchdog/rm9k_wdt.c b/drivers/char/watchdog/rm9k_wdt.c
index ec3909371c21..7576a13e86bc 100644
--- a/drivers/char/watchdog/rm9k_wdt.c
+++ b/drivers/char/watchdog/rm9k_wdt.c
@@ -47,7 +47,7 @@
 
 
 /* Function prototypes */
-static irqreturn_t wdt_gpi_irqhdl(int, void *, struct pt_regs *);
+static irqreturn_t wdt_gpi_irqhdl(int, void *);
 static void wdt_gpi_start(void);
 static void wdt_gpi_stop(void);
 static void wdt_gpi_set_timeout(unsigned int);
@@ -94,8 +94,28 @@ module_param(nowayout, bool, 0444);
 MODULE_PARM_DESC(nowayout, "Watchdog cannot be disabled once started");
 
 
+/* Kernel interfaces */
+static struct file_operations fops = {
+        .owner          = THIS_MODULE,
+        .open           = wdt_gpi_open,
+        .release        = wdt_gpi_release,
+        .write          = wdt_gpi_write,
+        .unlocked_ioctl = wdt_gpi_ioctl,
+};
+
+static struct miscdevice miscdev = {
+        .minor          = WATCHDOG_MINOR,
+        .name           = wdt_gpi_name,
+        .fops           = &fops,
+};
+
+static struct notifier_block wdt_gpi_shutdown = {
+        .notifier_call  = wdt_gpi_notify,
+};
+
+
 /* Interrupt handler */
-static irqreturn_t wdt_gpi_irqhdl(int irq, void *ctxt, struct pt_regs *regs)
+static irqreturn_t wdt_gpi_irqhdl(int irq, void *ctxt)
 {
         if (!unlikely(__raw_readl(wd_regs + 0x0008) & 0x1))
                 return IRQ_NONE;
@@ -312,26 +332,6 @@ wdt_gpi_notify(struct notifier_block *this, unsigned long code, void *unused)
 }
 
 
-/* Kernel interfaces */
-static struct file_operations fops = {
-        .owner          = THIS_MODULE,
-        .open           = wdt_gpi_open,
-        .release        = wdt_gpi_release,
-        .write          = wdt_gpi_write,
-        .unlocked_ioctl = wdt_gpi_ioctl,
-};
-
-static struct miscdevice miscdev = {
-        .minor          = WATCHDOG_MINOR,
-        .name           = wdt_gpi_name,
-        .fops           = &fops,
-};
-
-static struct notifier_block wdt_gpi_shutdown = {
-        .notifier_call  = wdt_gpi_notify,
-};
-
-
 /* Init & exit procedures */
 static const struct resource *
 wdt_gpi_get_resource(struct platform_device *pdv, const char *name,
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 47ab42db122a..9fb2edf36611 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -29,7 +29,8 @@
 #include <linux/completion.h>
 #include <linux/mutex.h>
 
-#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, "cpufreq-core", msg)
+#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, \
+                                                "cpufreq-core", msg)
 
 /**
  * The "cpufreq driver" - the arch- or hardware-dependent low
@@ -151,7 +152,8 @@ static void cpufreq_debug_disable_ratelimit(void)
         spin_unlock_irqrestore(&disable_ratelimit_lock, flags);
 }
 
-void cpufreq_debug_printk(unsigned int type, const char *prefix, const char *fmt, ...)
+void cpufreq_debug_printk(unsigned int type, const char *prefix,
+                                                        const char *fmt, ...)
 {
         char s[256];
         va_list args;
@@ -161,7 +163,8 @@ void cpufreq_debug_printk(unsigned int type, const char *prefix, const char *fmt
         WARN_ON(!prefix);
         if (type & debug) {
                 spin_lock_irqsave(&disable_ratelimit_lock, flags);
-                if (!disable_ratelimit && debug_ratelimit && !printk_ratelimit()) {
+                if (!disable_ratelimit && debug_ratelimit
+                                        && !printk_ratelimit()) {
                         spin_unlock_irqrestore(&disable_ratelimit_lock, flags);
                         return;
                 }
@@ -182,10 +185,12 @@ EXPORT_SYMBOL(cpufreq_debug_printk);
 
 
 module_param(debug, uint, 0644);
-MODULE_PARM_DESC(debug, "CPUfreq debugging: add 1 to debug core, 2 to debug drivers, and 4 to debug governors.");
+MODULE_PARM_DESC(debug, "CPUfreq debugging: add 1 to debug core,"
+                        " 2 to debug drivers, and 4 to debug governors.");
 
 module_param(debug_ratelimit, uint, 0644);
-MODULE_PARM_DESC(debug_ratelimit, "CPUfreq debugging: set to 0 to disable ratelimiting.");
+MODULE_PARM_DESC(debug_ratelimit, "CPUfreq debugging:"
+                                        " set to 0 to disable ratelimiting.");
 
 #else /* !CONFIG_CPU_FREQ_DEBUG */
 
@@ -219,17 +224,23 @@ static void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
         if (!l_p_j_ref_freq) {
                 l_p_j_ref = loops_per_jiffy;
                 l_p_j_ref_freq = ci->old;
-                dprintk("saving %lu as reference value for loops_per_jiffy; freq is %u kHz\n", l_p_j_ref, l_p_j_ref_freq);
+                dprintk("saving %lu as reference value for loops_per_jiffy;"
+                        "freq is %u kHz\n", l_p_j_ref, l_p_j_ref_freq);
         }
         if ((val == CPUFREQ_PRECHANGE  && ci->old < ci->new) ||
             (val == CPUFREQ_POSTCHANGE && ci->old > ci->new) ||
             (val == CPUFREQ_RESUMECHANGE || val == CPUFREQ_SUSPENDCHANGE)) {
-                loops_per_jiffy = cpufreq_scale(l_p_j_ref, l_p_j_ref_freq, ci->new);
-                dprintk("scaling loops_per_jiffy to %lu for frequency %u kHz\n", loops_per_jiffy, ci->new);
+                loops_per_jiffy = cpufreq_scale(l_p_j_ref, l_p_j_ref_freq,
+                                                                ci->new);
+                dprintk("scaling loops_per_jiffy to %lu"
+                        "for frequency %u kHz\n", loops_per_jiffy, ci->new);
         }
 }
 #else
-static inline void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci) { return; }
+static inline void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
+{
+        return;
+}
 #endif
 
 
@@ -316,7 +327,8 @@ static int cpufreq_parse_governor (char *str_governor, unsigned int *policy,
                 if (!strnicmp(str_governor, "performance", CPUFREQ_NAME_LEN)) {
                         *policy = CPUFREQ_POLICY_PERFORMANCE;
                         err = 0;
-                } else if (!strnicmp(str_governor, "powersave", CPUFREQ_NAME_LEN)) {
+                } else if (!strnicmp(str_governor, "powersave",
+                                                CPUFREQ_NAME_LEN)) {
                         *policy = CPUFREQ_POLICY_POWERSAVE;
                         err = 0;
                 }
@@ -328,7 +340,8 @@ static int cpufreq_parse_governor (char *str_governor, unsigned int *policy,
                 t = __find_governor(str_governor);
 
                 if (t == NULL) {
-                        char *name = kasprintf(GFP_KERNEL, "cpufreq_%s", str_governor);
+                        char *name = kasprintf(GFP_KERNEL, "cpufreq_%s",
+                                                                str_governor);
 
                         if (name) {
                                 int ret;
@@ -361,7 +374,8 @@ extern struct sysdev_class cpu_sysdev_class;
 
 
 /**
- * cpufreq_per_cpu_attr_read() / show_##file_name() - print out cpufreq information
+ * cpufreq_per_cpu_attr_read() / show_##file_name() -
+ * print out cpufreq information
  *
  * Write out information from cpufreq_driver->policy[cpu]; object must be
  * "unsigned int".
@@ -380,7 +394,8 @@ show_one(scaling_min_freq, min);
 show_one(scaling_max_freq, max);
 show_one(scaling_cur_freq, cur);
 
-static int __cpufreq_set_policy(struct cpufreq_policy *data, struct cpufreq_policy *policy);
+static int __cpufreq_set_policy(struct cpufreq_policy *data,
+                                struct cpufreq_policy *policy);
 
 /**
  * cpufreq_per_cpu_attr_write() / store_##file_name() - sysfs write access
@@ -416,7 +431,8 @@ store_one(scaling_max_freq,max);
 /**
  * show_cpuinfo_cur_freq - current CPU frequency as detected by hardware
  */
-static ssize_t show_cpuinfo_cur_freq (struct cpufreq_policy * policy, char *buf)
+static ssize_t show_cpuinfo_cur_freq (struct cpufreq_policy * policy,
+                                                        char *buf)
 {
         unsigned int cur_freq = cpufreq_get(policy->cpu);
         if (!cur_freq)
@@ -428,7 +444,8 @@ static ssize_t show_cpuinfo_cur_freq (struct cpufreq_policy * policy, char *buf)
 /**
  * show_scaling_governor - show the current policy for the specified CPU
  */
-static ssize_t show_scaling_governor (struct cpufreq_policy * policy, char *buf)
+static ssize_t show_scaling_governor (struct cpufreq_policy * policy,
+                                                        char *buf)
 {
         if(policy->policy == CPUFREQ_POLICY_POWERSAVE)
                 return sprintf(buf, "powersave\n");
@@ -458,7 +475,8 @@ static ssize_t store_scaling_governor (struct cpufreq_policy * policy,
         if (ret != 1)
                 return -EINVAL;
 
-        if (cpufreq_parse_governor(str_governor, &new_policy.policy, &new_policy.governor))
+        if (cpufreq_parse_governor(str_governor, &new_policy.policy,
+                                                &new_policy.governor))
                 return -EINVAL;
 
         lock_cpu_hotplug();
@@ -474,7 +492,10 @@ static ssize_t store_scaling_governor (struct cpufreq_policy * policy,
 
         unlock_cpu_hotplug();
 
-        return ret ? ret : count;
+        if (ret)
+                return ret;
+        else
+                return count;
 }
 
 /**
@@ -488,7 +509,7 @@ static ssize_t show_scaling_driver (struct cpufreq_policy * policy, char *buf)
 /**
  * show_scaling_available_governors - show the available CPUfreq governors
  */
-static ssize_t show_scaling_available_governors (struct cpufreq_policy * policy,
+static ssize_t show_scaling_available_governors (struct cpufreq_policy *policy,
                                 char *buf)
 {
         ssize_t i = 0;
@@ -574,7 +595,11 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr ,char * buf)
         policy = cpufreq_cpu_get(policy->cpu);
         if (!policy)
                 return -EINVAL;
-        ret = fattr->show ? fattr->show(policy,buf) : -EIO;
+        if (fattr->show)
+                ret = fattr->show(policy, buf);
+        else
+                ret = -EIO;
+
         cpufreq_cpu_put(policy);
         return ret;
 }
@@ -588,7 +613,11 @@ static ssize_t store(struct kobject * kobj, struct attribute * attr,
         policy = cpufreq_cpu_get(policy->cpu);
         if (!policy)
                 return -EINVAL;
-        ret = fattr->store ? fattr->store(policy,buf,count) : -EIO;
+        if (fattr->store)
+                ret = fattr->store(policy, buf, count);
+        else
+                ret = -EIO;
+
         cpufreq_cpu_put(policy);
         return ret;
 }
@@ -913,7 +942,8 @@ static void handle_update(struct work_struct *work)
  *      We adjust to current frequency first, and need to clean up later. So either call
  *      to cpufreq_update_policy() or schedule handle_update()).
  */
-static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq, unsigned int new_freq)
+static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq,
+                                unsigned int new_freq)
 {
         struct cpufreq_freqs freqs;
 
@@ -938,16 +968,16 @@ static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq, unsigne
 unsigned int cpufreq_quick_get(unsigned int cpu)
 {
         struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
-        unsigned int ret = 0;
+        unsigned int ret_freq = 0;
 
         if (policy) {
                 mutex_lock(&policy->lock);
-                ret = policy->cur;
+                ret_freq = policy->cur;
                 mutex_unlock(&policy->lock);
                 cpufreq_cpu_put(policy);
         }
 
-        return (ret);
+        return (ret_freq);
 }
 EXPORT_SYMBOL(cpufreq_quick_get);
 
@@ -961,7 +991,7 @@ EXPORT_SYMBOL(cpufreq_quick_get);
 unsigned int cpufreq_get(unsigned int cpu)
 {
         struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
-        unsigned int ret = 0;
+        unsigned int ret_freq = 0;
 
         if (!policy)
                 return 0;
@@ -971,12 +1001,14 @@ unsigned int cpufreq_get(unsigned int cpu)
 
         mutex_lock(&policy->lock);
 
-        ret = cpufreq_driver->get(cpu);
+        ret_freq = cpufreq_driver->get(cpu);
 
-        if (ret && policy->cur && !(cpufreq_driver->flags & CPUFREQ_CONST_LOOPS)) {
-                /* verify no discrepancy between actual and saved value exists */
-                if (unlikely(ret != policy->cur)) {
-                        cpufreq_out_of_sync(cpu, policy->cur, ret);
+        if (ret_freq && policy->cur &&
+                !(cpufreq_driver->flags & CPUFREQ_CONST_LOOPS)) {
+                /* verify no discrepancy between actual and
+                                        saved value exists */
+                if (unlikely(ret_freq != policy->cur)) {
+                        cpufreq_out_of_sync(cpu, policy->cur, ret_freq);
                         schedule_work(&policy->update);
                 }
         }
@@ -986,7 +1018,7 @@ unsigned int cpufreq_get(unsigned int cpu)
 out:
         cpufreq_cpu_put(policy);
 
-        return (ret);
+        return (ret_freq);
 }
 EXPORT_SYMBOL(cpufreq_get);
 
@@ -998,7 +1030,7 @@ EXPORT_SYMBOL(cpufreq_get);
 static int cpufreq_suspend(struct sys_device * sysdev, pm_message_t pmsg)
 {
         int cpu = sysdev->id;
-        unsigned int ret = 0;
+        int ret = 0;
         unsigned int cur_freq = 0;
         struct cpufreq_policy *cpu_policy;
 
@@ -1080,7 +1112,7 @@ out:
 static int cpufreq_resume(struct sys_device * sysdev)
 {
         int cpu = sysdev->id;
-        unsigned int ret = 0;
+        int ret = 0;
         struct cpufreq_policy *cpu_policy;
 
         dprintk("resuming cpu %u\n", cpu);
@@ -1276,22 +1308,45 @@ int cpufreq_driver_target(struct cpufreq_policy *policy,
 }
 EXPORT_SYMBOL_GPL(cpufreq_driver_target);
 
+int cpufreq_driver_getavg(struct cpufreq_policy *policy)
+{
+        int ret = 0;
+
+        policy = cpufreq_cpu_get(policy->cpu);
+        if (!policy)
+                return -EINVAL;
+
+        mutex_lock(&policy->lock);
+
+        if (cpu_online(policy->cpu) && cpufreq_driver->getavg)
+                ret = cpufreq_driver->getavg(policy->cpu);
+
+        mutex_unlock(&policy->lock);
+
+        cpufreq_cpu_put(policy);
+        return ret;
+}
+EXPORT_SYMBOL_GPL(cpufreq_driver_getavg);
+
 /*
  * Locking: Must be called with the lock_cpu_hotplug() lock held
  * when "event" is CPUFREQ_GOV_LIMITS
  */
 
-static int __cpufreq_governor(struct cpufreq_policy *policy, unsigned int event)
+static int __cpufreq_governor(struct cpufreq_policy *policy,
+                                        unsigned int event)
 {
         int ret;
 
         if (!try_module_get(policy->governor->owner))
                 return -EINVAL;
 
-        dprintk("__cpufreq_governor for CPU %u, event %u\n", policy->cpu, event);
+        dprintk("__cpufreq_governor for CPU %u, event %u\n",
+                                                policy->cpu, event);
         ret = policy->governor->governor(policy, event);
 
-        /* we keep one module reference alive for each CPU governed by this CPU */
+        /* we keep one module reference alive for
+                        each CPU governed by this CPU */
         if ((event != CPUFREQ_GOV_START) || ret)
                 module_put(policy->governor->owner);
         if ((event == CPUFREQ_GOV_STOP) && !ret)
@@ -1367,9 +1422,12 @@ EXPORT_SYMBOL(cpufreq_get_policy);
 
 
 /*
+ * data   : current policy.
+ * policy : policy to be set.
  * Locking: Must be called with the lock_cpu_hotplug() lock held
  */
-static int __cpufreq_set_policy(struct cpufreq_policy *data, struct cpufreq_policy *policy)
+static int __cpufreq_set_policy(struct cpufreq_policy *data,
+                                struct cpufreq_policy *policy)
 {
         int ret = 0;
 
@@ -1377,7 +1435,8 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, struct cpufreq_poli
         dprintk("setting new policy for CPU %u: %u - %u kHz\n", policy->cpu,
                 policy->min, policy->max);
 
-        memcpy(&policy->cpuinfo, &data->cpuinfo, sizeof(struct cpufreq_cpuinfo));
+        memcpy(&policy->cpuinfo, &data->cpuinfo,
+                                sizeof(struct cpufreq_cpuinfo));
 
         if (policy->min > data->min && policy->min > policy->max) {
                 ret = -EINVAL;
@@ -1410,7 +1469,8 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, struct cpufreq_poli
         data->min = policy->min;
         data->max = policy->max;
 
-        dprintk("new min and max freqs are %u - %u kHz\n", data->min, data->max);
+        dprintk("new min and max freqs are %u - %u kHz\n",
+                                        data->min, data->max);
 
         if (cpufreq_driver->setpolicy) {
                 data->policy = policy->policy;
@@ -1431,10 +1491,12 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, struct cpufreq_poli
                         data->governor = policy->governor;
                         if (__cpufreq_governor(data, CPUFREQ_GOV_START)) {
                                 /* new governor failed, so re-start old one */
-                                dprintk("starting governor %s failed\n", data->governor->name);
+                                dprintk("starting governor %s failed\n",
+                                                        data->governor->name);
                                 if (old_gov) {
                                         data->governor = old_gov;
-                                        __cpufreq_governor(data, CPUFREQ_GOV_START);
+                                        __cpufreq_governor(data,
+                                                           CPUFREQ_GOV_START);
                                 }
                                 ret = -EINVAL;
                                 goto error_out;
@@ -1524,7 +1586,8 @@ int cpufreq_update_policy(unsigned int cpu)
                         data->cur = policy.cur;
                 } else {
                         if (data->cur != policy.cur)
-                                cpufreq_out_of_sync(cpu, data->cur, policy.cur);
+                                cpufreq_out_of_sync(cpu, data->cur,
+                                                                policy.cur);
                 }
         }
 
@@ -1626,8 +1689,10 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
 
                 /* if all ->init() calls failed, unregister */
                 if (ret) {
-                        dprintk("no CPU initialized for driver %s\n", driver_data->name);
-                        sysdev_driver_unregister(&cpu_sysdev_class, &cpufreq_sysdev_driver);
+                        dprintk("no CPU initialized for driver %s\n",
+                                                        driver_data->name);
+                        sysdev_driver_unregister(&cpu_sysdev_class,
+                                                &cpufreq_sysdev_driver);
 
                         spin_lock_irqsave(&cpufreq_driver_lock, flags);
                         cpufreq_driver = NULL;
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 5ef5ede5b884..eef0270c6f3d 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -44,15 +44,17 @@
  * latency of the processor. The governor will work on any processor with 
  * transition latency <= 10mS, using appropriate sampling 
  * rate.
- * For CPUs with transition latency > 10mS (mostly drivers with CPUFREQ_ETERNAL)
- * this governor will not work.
+ * For CPUs with transition latency > 10mS (mostly drivers
+ * with CPUFREQ_ETERNAL), this governor will not work.
  * All times here are in uS.
  */
 static unsigned int                             def_sampling_rate;
 #define MIN_SAMPLING_RATE_RATIO                 (2)
 /* for correct statistics, we need at least 10 ticks between each measure */
-#define MIN_STAT_SAMPLING_RATE                  (MIN_SAMPLING_RATE_RATIO * jiffies_to_usecs(10))
-#define MIN_SAMPLING_RATE                       (def_sampling_rate / MIN_SAMPLING_RATE_RATIO)
+#define MIN_STAT_SAMPLING_RATE                  \
+                        (MIN_SAMPLING_RATE_RATIO * jiffies_to_usecs(10))
+#define MIN_SAMPLING_RATE                       \
+                        (def_sampling_rate / MIN_SAMPLING_RATE_RATIO)
 #define MAX_SAMPLING_RATE                       (500 * def_sampling_rate)
 #define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER    (1000)
 #define DEF_SAMPLING_DOWN_FACTOR                (1)
@@ -103,11 +105,16 @@ static struct dbs_tuners dbs_tuners_ins = {
 
 static inline unsigned int get_cpu_idle_time(unsigned int cpu)
 {
-        return  kstat_cpu(cpu).cpustat.idle +
+        unsigned int add_nice = 0, ret;
+
+        if (dbs_tuners_ins.ignore_nice)
+                add_nice = kstat_cpu(cpu).cpustat.nice;
+
+        ret =   kstat_cpu(cpu).cpustat.idle +
                 kstat_cpu(cpu).cpustat.iowait +
-                ( dbs_tuners_ins.ignore_nice ?
-                  kstat_cpu(cpu).cpustat.nice :
-                  0);
+                add_nice;
+
+        return ret;
 }
 
 /************************** sysfs interface ************************/
@@ -452,6 +459,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
         unsigned int cpu = policy->cpu;
         struct cpu_dbs_info_s *this_dbs_info;
         unsigned int j;
+        int rc;
 
         this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
 
@@ -468,6 +476,13 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                         break;
                  
                 mutex_lock(&dbs_mutex);
+
+                rc = sysfs_create_group(&policy->kobj, &dbs_attr_group);
+                if (rc) {
+                        mutex_unlock(&dbs_mutex);
+                        return rc;
+                }
+
                 for_each_cpu_mask(j, policy->cpus) {
                         struct cpu_dbs_info_s *j_dbs_info;
                         j_dbs_info = &per_cpu(cpu_dbs_info, j);
@@ -480,7 +495,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 this_dbs_info->enable = 1;
                 this_dbs_info->down_skip = 0;
                 this_dbs_info->requested_freq = policy->cur;
-                sysfs_create_group(&policy->kobj, &dbs_attr_group);
+
                 dbs_enable++;
                 /*
                  * Start the timerschedule work, when this governor
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index e1cc5113c2ae..f697449327c6 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -41,8 +41,10 @@
 static unsigned int def_sampling_rate;
 #define MIN_SAMPLING_RATE_RATIO                 (2)
 /* for correct statistics, we need at least 10 ticks between each measure */
-#define MIN_STAT_SAMPLING_RATE                  (MIN_SAMPLING_RATE_RATIO * jiffies_to_usecs(10))
-#define MIN_SAMPLING_RATE                       (def_sampling_rate / MIN_SAMPLING_RATE_RATIO)
+#define MIN_STAT_SAMPLING_RATE                  \
+                        (MIN_SAMPLING_RATE_RATIO * jiffies_to_usecs(10))
+#define MIN_SAMPLING_RATE                       \
+                        (def_sampling_rate / MIN_SAMPLING_RATE_RATIO)
 #define MAX_SAMPLING_RATE                       (500 * def_sampling_rate)
 #define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER    (1000)
 #define TRANSITION_LATENCY_LIMIT                (10 * 1000)
@@ -206,7 +208,8 @@ static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
         ret = sscanf(buf, "%u", &input);
 
         mutex_lock(&dbs_mutex);
-        if (ret != 1 || input > MAX_SAMPLING_RATE || input < MIN_SAMPLING_RATE) {
+        if (ret != 1 || input > MAX_SAMPLING_RATE
+                     || input < MIN_SAMPLING_RATE) {
                 mutex_unlock(&dbs_mutex);
                 return -EINVAL;
         }
@@ -397,8 +400,15 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
          * policy. To be safe, we focus 10 points under the threshold.
          */
         if (load < (dbs_tuners_ins.up_threshold - 10)) {
-                unsigned int freq_next = (policy->cur * load) /
+                unsigned int freq_next, freq_cur;
+
+                freq_cur = cpufreq_driver_getavg(policy);
+                if (!freq_cur)
+                        freq_cur = policy->cur;
+
+                freq_next = (freq_cur * load) /
                         (dbs_tuners_ins.up_threshold - 10);
+
                 if (!dbs_tuners_ins.powersave_bias) {
                         __cpufreq_driver_target(policy, freq_next,
                                         CPUFREQ_RELATION_L);
@@ -472,6 +482,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
         unsigned int cpu = policy->cpu;
         struct cpu_dbs_info_s *this_dbs_info;
         unsigned int j;
+        int rc;
 
         this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
 
@@ -494,12 +505,23 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 if (dbs_enable == 1) {
                         kondemand_wq = create_workqueue("kondemand");
                         if (!kondemand_wq) {
-                                printk(KERN_ERR "Creation of kondemand failed\n");
+                                printk(KERN_ERR
+                                         "Creation of kondemand failed\n");
                                 dbs_enable--;
                                 mutex_unlock(&dbs_mutex);
                                 return -ENOSPC;
                         }
                 }
+
+                rc = sysfs_create_group(&policy->kobj, &dbs_attr_group);
+                if (rc) {
+                        if (dbs_enable == 1)
+                                destroy_workqueue(kondemand_wq);
+                        dbs_enable--;
+                        mutex_unlock(&dbs_mutex);
+                        return rc;
+                }
+
                 for_each_cpu_mask(j, policy->cpus) {
                         struct cpu_dbs_info_s *j_dbs_info;
                         j_dbs_info = &per_cpu(cpu_dbs_info, j);
@@ -509,7 +531,6 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                         j_dbs_info->prev_cpu_wall = get_jiffies_64();
                 }
                 this_dbs_info->enable = 1;
-                sysfs_create_group(&policy->kobj, &dbs_attr_group);
                 /*
                  * Start the timerschedule work, when this governor
                  * is used for first time
diff --git a/drivers/cpufreq/cpufreq_performance.c b/drivers/cpufreq/cpufreq_performance.c
index de91e3371ef8..e8e1451ef1c1 100644
--- a/drivers/cpufreq/cpufreq_performance.c
+++ b/drivers/cpufreq/cpufreq_performance.c
@@ -15,7 +15,8 @@
 #include <linux/cpufreq.h>
 #include <linux/init.h>
 
-#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "performance", msg)
+#define dprintk(msg...) \
+        cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "performance", msg)
 
 
 static int cpufreq_governor_performance(struct cpufreq_policy *policy,
@@ -24,8 +25,10 @@ static int cpufreq_governor_performance(struct cpufreq_policy *policy,
         switch (event) {
         case CPUFREQ_GOV_START:
         case CPUFREQ_GOV_LIMITS:
-                dprintk("setting to %u kHz because of event %u\n", policy->max, event);
-                __cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H);
+                dprintk("setting to %u kHz because of event %u\n",
+                                                policy->max, event);
+                __cpufreq_driver_target(policy, policy->max,
+                                                CPUFREQ_RELATION_H);
                 break;
         default:
                 break;
diff --git a/drivers/cpufreq/cpufreq_powersave.c b/drivers/cpufreq/cpufreq_powersave.c
index 0a2596044e65..13fe06b94b0a 100644
--- a/drivers/cpufreq/cpufreq_powersave.c
+++ b/drivers/cpufreq/cpufreq_powersave.c
@@ -15,7 +15,8 @@
 #include <linux/cpufreq.h>
 #include <linux/init.h>
 
-#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "powersave", msg)
+#define dprintk(msg...) \
+        cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "powersave", msg)
 
 static int cpufreq_governor_powersave(struct cpufreq_policy *policy,
                                         unsigned int event)
@@ -23,8 +24,10 @@ static int cpufreq_governor_powersave(struct cpufreq_policy *policy,
         switch (event) {
         case CPUFREQ_GOV_START:
         case CPUFREQ_GOV_LIMITS:
-                dprintk("setting to %u kHz because of event %u\n", policy->min, event);
-                __cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L);
+                dprintk("setting to %u kHz because of event %u\n",
+                                                        policy->min, event);
+                __cpufreq_driver_target(policy, policy->min,
+                                                CPUFREQ_RELATION_L);
                 break;
         default:
                 break;
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index c2ecc599dc5f..6742b1adf2c8 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -351,8 +351,8 @@ __init cpufreq_stats_init(void)
 
         register_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
         for_each_online_cpu(cpu) {
-                cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier, CPU_ONLINE,
-                        (void *)(long)cpu);
+                cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier,
+                                CPU_ONLINE, (void *)(long)cpu);
         }
         return 0;
 }
@@ -368,14 +368,15 @@ __exit cpufreq_stats_exit(void)
         unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
         lock_cpu_hotplug();
         for_each_online_cpu(cpu) {
-                cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier, CPU_DEAD,
-                        (void *)(long)cpu);
+                cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier,
+                                                CPU_DEAD, (void *)(long)cpu);
         }
         unlock_cpu_hotplug();
 }
 
 MODULE_AUTHOR ("Zou Nan hai <nanhai.zou@intel.com>");
-MODULE_DESCRIPTION ("'cpufreq_stats' - A driver to export cpufreq stats through sysfs filesystem");
+MODULE_DESCRIPTION ("'cpufreq_stats' - A driver to export cpufreq stats"
+                                "through sysfs filesystem");
 MODULE_LICENSE ("GPL");
 
 module_init(cpufreq_stats_init);
diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c
index a06c204589cd..2a4eb0bfaf30 100644
--- a/drivers/cpufreq/cpufreq_userspace.c
+++ b/drivers/cpufreq/cpufreq_userspace.c
@@ -131,19 +131,26 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
                                    unsigned int event)
 {
         unsigned int cpu = policy->cpu;
+        int rc = 0;
+
         switch (event) {
         case CPUFREQ_GOV_START:
                 if (!cpu_online(cpu))
                         return -EINVAL;
                 BUG_ON(!policy->cur);
                 mutex_lock(&userspace_mutex);
+                rc = sysfs_create_file (&policy->kobj,
+                                        &freq_attr_scaling_setspeed.attr);
+                if (rc)
+                        goto start_out;
+
                 cpu_is_managed[cpu] = 1;
                 cpu_min_freq[cpu] = policy->min;
                 cpu_max_freq[cpu] = policy->max;
                 cpu_cur_freq[cpu] = policy->cur;
                 cpu_set_freq[cpu] = policy->cur;
-                sysfs_create_file (&policy->kobj, &freq_attr_scaling_setspeed.attr);
                 dprintk("managing cpu %u started (%u - %u kHz, currently %u kHz)\n", cpu, cpu_min_freq[cpu], cpu_max_freq[cpu], cpu_cur_freq[cpu]);
+start_out:
                 mutex_unlock(&userspace_mutex);
                 break;
         case CPUFREQ_GOV_STOP:
@@ -180,7 +187,7 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
                 mutex_unlock(&userspace_mutex);
                 break;
         }
-        return 0;
+        return rc;
 }
 
 
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index 551f4ccf87fd..e7490925fdcf 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -9,7 +9,8 @@
 #include <linux/init.h>
 #include <linux/cpufreq.h>
 
-#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, "freq-table", msg)
+#define dprintk(msg...) \
+        cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, "freq-table", msg)
 
 /*********************************************************************
  *                     FREQUENCY TABLE HELPERS                       *
@@ -29,7 +30,8 @@ int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
 
                         continue;
                 }
-                dprintk("table entry %u: %u kHz, %u index\n", i, freq, table[i].index);
+                dprintk("table entry %u: %u kHz, %u index\n",
+                                        i, freq, table[i].index);
                 if (freq < min_freq)
                         min_freq = freq;
                 if (freq > max_freq)
@@ -54,13 +56,14 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
         unsigned int i;
         unsigned int count = 0;
 
-        dprintk("request for verification of policy (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu);
+        dprintk("request for verification of policy (%u - %u kHz) for cpu %u\n",
+                                        policy->min, policy->max, policy->cpu);
 
         if (!cpu_online(policy->cpu))
                 return -EINVAL;
 
-        cpufreq_verify_within_limits(policy,
-                                     policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
+        cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
+                                     policy->cpuinfo.max_freq);
 
         for (i=0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
                 unsigned int freq = table[i].frequency;
@@ -75,10 +78,11 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
         if (!count)
                 policy->max = next_larger;
 
-        cpufreq_verify_within_limits(policy,
-                                     policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
+        cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
+                                     policy->cpuinfo.max_freq);
 
-        dprintk("verification lead to (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu);
+        dprintk("verification lead to (%u - %u kHz) for cpu %u\n",
+                                policy->min, policy->max, policy->cpu);
 
         return 0;
 }
@@ -101,7 +105,8 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
         };
         unsigned int i;
 
-        dprintk("request for target %u kHz (relation: %u) for cpu %u\n", target_freq, relation, policy->cpu);
+        dprintk("request for target %u kHz (relation: %u) for cpu %u\n",
+                                        target_freq, relation, policy->cpu);
 
         switch (relation) {
         case CPUFREQ_RELATION_H:
@@ -192,7 +197,10 @@ static ssize_t show_available_freqs (struct cpufreq_policy *policy, char *buf)
 }
 
 struct freq_attr cpufreq_freq_attr_scaling_available_freqs = {
-        .attr = { .name = "scaling_available_frequencies", .mode = 0444, .owner=THIS_MODULE },
+        .attr = { .name = "scaling_available_frequencies",
+                  .mode = 0444,
+                  .owner=THIS_MODULE
+                },
         .show = show_available_freqs,
 };
 EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs);
diff --git a/drivers/i2c/algos/Kconfig b/drivers/i2c/algos/Kconfig
index c034820615bb..af0203409dd1 100644
--- a/drivers/i2c/algos/Kconfig
+++ b/drivers/i2c/algos/Kconfig
@@ -38,17 +38,6 @@ config I2C_ALGOPCA
           This support is also available as a module.  If so, the module 
           will be called i2c-algo-pca.
 
-config I2C_ALGOITE
-        tristate "ITE I2C Algorithm"
-        depends on MIPS_ITE8172 && I2C
-        help
-          This supports the use of the ITE8172 I2C interface found on some MIPS
-          systems. Say Y if you have one of these. You should also say Y for
-          the ITE I2C peripheral driver support below.
-
-          This support is also available as a module.  If so, the module 
-          will be called i2c-algo-ite.
-
 config I2C_ALGO8XX
         tristate "MPC8xx CPM I2C interface"
         depends on 8xx && I2C
diff --git a/drivers/i2c/algos/Makefile b/drivers/i2c/algos/Makefile
index 208be04a3dbd..cac1051bd4f1 100644
--- a/drivers/i2c/algos/Makefile
+++ b/drivers/i2c/algos/Makefile
@@ -5,7 +5,6 @@
 obj-$(CONFIG_I2C_ALGOBIT)       += i2c-algo-bit.o
 obj-$(CONFIG_I2C_ALGOPCF)       += i2c-algo-pcf.o
 obj-$(CONFIG_I2C_ALGOPCA)       += i2c-algo-pca.o
-obj-$(CONFIG_I2C_ALGOITE)       += i2c-algo-ite.o
 obj-$(CONFIG_I2C_ALGO_SGI)      += i2c-algo-sgi.o
 
 ifeq ($(CONFIG_I2C_DEBUG_ALGO),y)
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 21c36bfb5e6b..95aa5395a5be 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -540,15 +540,7 @@ int i2c_bit_add_bus(struct i2c_adapter *adap)
 
         return i2c_add_adapter(adap);
 }
-
-
-int i2c_bit_del_bus(struct i2c_adapter *adap)
-{
-        return i2c_del_adapter(adap);
-}
-
 EXPORT_SYMBOL(i2c_bit_add_bus);
-EXPORT_SYMBOL(i2c_bit_del_bus);
 
 MODULE_AUTHOR("Simon G. Vogl <simon@tk.uni-linz.ac.at>");
 MODULE_DESCRIPTION("I2C-Bus bit-banging algorithm");
diff --git a/drivers/i2c/algos/i2c-algo-ite.c b/drivers/i2c/algos/i2c-algo-ite.c
deleted file mode 100644
index 70d8eefb5efc..000000000000
--- a/drivers/i2c/algos/i2c-algo-ite.c
+++ /dev/null
@@ -1,806 +0,0 @@
-/*
-   -------------------------------------------------------------------------
-   i2c-algo-ite.c i2c driver algorithms for ITE adapters            
-   
-   Hai-Pao Fan, MontaVista Software, Inc.
-   hpfan@mvista.com or source@mvista.com
-
-   Copyright 2000 MontaVista Software Inc.
-
-   ---------------------------------------------------------------------------
-   This file was highly leveraged from i2c-algo-pcf.c, which was created
-   by Simon G. Vogl and Hans Berglund:
-
-
-     Copyright (C) 1995-1997 Simon G. Vogl
-                   1998-2000 Hans Berglund
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                */
-/* ------------------------------------------------------------------------- */
-
-/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and 
-   Frodo Looijaard <frodol@dds.nl> ,and also from Martin Bailey
-   <mbailey@littlefeet-inc.com> */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <asm/uaccess.h>
-#include <linux/ioport.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-
-#include <linux/i2c.h>
-#include <linux/i2c-algo-ite.h>
-#include "i2c-algo-ite.h"
-
-#define PM_DSR          IT8172_PCI_IO_BASE + IT_PM_DSR
-#define PM_IBSR         IT8172_PCI_IO_BASE + IT_PM_DSR + 0x04 
-#define GPIO_CCR        IT8172_PCI_IO_BASE + IT_GPCCR
-
-#define DEB2(x) if (i2c_debug>=2) x
-#define DEB3(x) if (i2c_debug>=3) x /* print several statistical values*/
-#define DEF_TIMEOUT 16
-
-
-/* module parameters:
- */
-static int i2c_debug;
-static int iic_test;    /* see if the line-setting functions work       */
-
-/* --- setting states on the bus with the right timing: --------------- */
-
-#define get_clock(adap) adap->getclock(adap->data)
-#define iic_outw(adap, reg, val) adap->setiic(adap->data, reg, val)
-#define iic_inw(adap, reg) adap->getiic(adap->data, reg)
-
-
-/* --- other auxiliary functions -------------------------------------- */
-
-static void iic_start(struct i2c_algo_iic_data *adap)
-{
-        iic_outw(adap,ITE_I2CHCR,ITE_CMD);
-}
-
-static void iic_stop(struct i2c_algo_iic_data *adap)
-{
-        iic_outw(adap,ITE_I2CHCR,0);
-        iic_outw(adap,ITE_I2CHSR,ITE_I2CHSR_TDI);
-}
-
-static void iic_reset(struct i2c_algo_iic_data *adap)
-{
-        iic_outw(adap, PM_IBSR, iic_inw(adap, PM_IBSR) | 0x80);
-}
-
-
-static int wait_for_bb(struct i2c_algo_iic_data *adap)
-{
-        int timeout = DEF_TIMEOUT;
-        short status;
-
-        status = iic_inw(adap, ITE_I2CHSR);
-#ifndef STUB_I2C
-        while (timeout-- && (status & ITE_I2CHSR_HB)) {
-                udelay(1000); /* How much is this? */
-                status = iic_inw(adap, ITE_I2CHSR);
-        }
-#endif
-        if (timeout<=0) {
-                printk(KERN_ERR "Timeout, host is busy\n");
-                iic_reset(adap);
-        }
-        return(timeout<=0);
-}
-
-/* After we issue a transaction on the IIC bus, this function
- * is called.  It puts this process to sleep until we get an interrupt from
- * from the controller telling us that the transaction we requested in complete.
- */
-static int wait_for_pin(struct i2c_algo_iic_data *adap, short *status) {
-
-        int timeout = DEF_TIMEOUT;
-        
-        timeout = wait_for_bb(adap);
-        if (timeout) {
-                DEB2(printk("Timeout waiting for host not busy\n");)
-                return -EIO;
-        }                           
-        timeout = DEF_TIMEOUT;
-
-        *status = iic_inw(adap, ITE_I2CHSR);
-#ifndef STUB_I2C
-        while (timeout-- && !(*status & ITE_I2CHSR_TDI)) {
-           adap->waitforpin();
-           *status = iic_inw(adap, ITE_I2CHSR);
-        }
-#endif
-        if (timeout <= 0)
-                return(-1);
-        else
-                return(0);
-}
-
-static int wait_for_fe(struct i2c_algo_iic_data *adap, short *status)
-{
-        int timeout = DEF_TIMEOUT;
-
-        *status = iic_inw(adap, ITE_I2CFSR);
-#ifndef STUB_I2C 
-        while (timeout-- && (*status & ITE_I2CFSR_FE)) {
-                udelay(1000);
-                iic_inw(adap, ITE_I2CFSR);
-        }
-#endif
-        if (timeout <= 0) 
-                return(-1);
-        else
-                return(0);
-}
-
-static int iic_init (struct i2c_algo_iic_data *adap)
-{
-        short i;
-
-        /* Clear bit 7 to set I2C to normal operation mode */
-        i=iic_inw(adap, PM_DSR)& 0xff7f;
-        iic_outw(adap, PM_DSR, i);
-
-        /* set IT_GPCCR port C bit 2&3 as function 2 */
-        i = iic_inw(adap, GPIO_CCR) & 0xfc0f;
-        iic_outw(adap,GPIO_CCR,i);
-
-        /* Clear slave address/sub-address */
-        iic_outw(adap,ITE_I2CSAR, 0);
-        iic_outw(adap,ITE_I2CSSAR, 0);
-
-        /* Set clock counter register */
-        iic_outw(adap,ITE_I2CCKCNT, get_clock(adap));
-
-        /* Set START/reSTART/STOP time registers */
-        iic_outw(adap,ITE_I2CSHDR, 0x0a);
-        iic_outw(adap,ITE_I2CRSUR, 0x0a);
-        iic_outw(adap,ITE_I2CPSUR, 0x0a);
-
-        /* Enable interrupts on completing the current transaction */
-        iic_outw(adap,ITE_I2CHCR, ITE_I2CHCR_IE | ITE_I2CHCR_HCE);
-
-        /* Clear transfer count */
-        iic_outw(adap,ITE_I2CFBCR, 0x0);
-
-        DEB2(printk("iic_init: Initialized IIC on ITE 0x%x\n",
-                iic_inw(adap, ITE_I2CHSR)));
-        return 0;
-}
-
-
-/*
- * Sanity check for the adapter hardware - check the reaction of
- * the bus lines only if it seems to be idle.
- */
-static int test_bus(struct i2c_algo_iic_data *adap, char *name) {
-#if 0
-        int scl,sda;
-        sda=getsda(adap);
-        if (adap->getscl==NULL) {
-                printk("test_bus: Warning: Adapter can't read from clock line - skipping test.\n");
-                return 0;               
-        }
-        scl=getscl(adap);
-        printk("test_bus: Adapter: %s scl: %d  sda: %d -- testing...\n",
-        name,getscl(adap),getsda(adap));
-        if (!scl || !sda ) {
-                printk("test_bus: %s seems to be busy.\n",adap->name);
-                goto bailout;
-        }
-        sdalo(adap);
-        printk("test_bus:1 scl: %d  sda: %d\n", getscl(adap),
-               getsda(adap));
-        if ( 0 != getsda(adap) ) {
-                printk("test_bus: %s SDA stuck high!\n",name);
-                sdahi(adap);
-                goto bailout;
-        }
-        if ( 0 == getscl(adap) ) {
-                printk("test_bus: %s SCL unexpected low while pulling SDA low!\n",
-                        name);
-                goto bailout;
-        }               
-        sdahi(adap);
-        printk("test_bus:2 scl: %d  sda: %d\n", getscl(adap),
-               getsda(adap));
-        if ( 0 == getsda(adap) ) {
-                printk("test_bus: %s SDA stuck low!\n",name);
-                sdahi(adap);
-                goto bailout;
-        }
-        if ( 0 == getscl(adap) ) {
-                printk("test_bus: %s SCL unexpected low while SDA high!\n",
-                       adap->name);
-        goto bailout;
-        }
-        scllo(adap);
-        printk("test_bus:3 scl: %d  sda: %d\n", getscl(adap),
-               getsda(adap));
-        if ( 0 != getscl(adap) ) {
-
-                sclhi(adap);
-                goto bailout;
-        }
-        if ( 0 == getsda(adap) ) {
-                printk("test_bus: %s SDA unexpected low while pulling SCL low!\n",
-                        name);
-                goto bailout;
-        }
-        sclhi(adap);
-        printk("test_bus:4 scl: %d  sda: %d\n", getscl(adap),
-               getsda(adap));
-        if ( 0 == getscl(adap) ) {
-                printk("test_bus: %s SCL stuck low!\n",name);
-                sclhi(adap);
-                goto bailout;
-        }
-        if ( 0 == getsda(adap) ) {
-                printk("test_bus: %s SDA unexpected low while SCL high!\n",
-                        name);
-                goto bailout;
-        }
-        printk("test_bus: %s passed test.\n",name);
-        return 0;
-bailout:
-        sdahi(adap);
-        sclhi(adap);
-        return -ENODEV;
-#endif
-        return (0);
-}
-
-/* ----- Utility functions
- */
-
-
-/* Verify the device we want to talk to on the IIC bus really exists. */
-static inline int try_address(struct i2c_algo_iic_data *adap,
-                       unsigned int addr, int retries)
-{
-        int i, ret = -1;
-        short status;
-
-        for (i=0;i<retries;i++) {
-                iic_outw(adap, ITE_I2CSAR, addr);
-                iic_start(adap);
-                if (wait_for_pin(adap, &status) == 0) {
-                        if ((status & ITE_I2CHSR_DNE) == 0) { 
-                                iic_stop(adap);
-                                iic_outw(adap, ITE_I2CFCR, ITE_I2CFCR_FLUSH);
-                                ret=1;
-                                break;  /* success! */
-                        }
-                }
-                iic_stop(adap);
-                udelay(adap->udelay);
-        }
-        DEB2(if (i) printk("try_address: needed %d retries for 0x%x\n",i,
-                           addr));
-        return ret;
-}
-
-
-static int iic_sendbytes(struct i2c_adapter *i2c_adap,const char *buf,
-                         int count)
-{
-        struct i2c_algo_iic_data *adap = i2c_adap->algo_data;
-        int wrcount=0, timeout;
-        short status;
-        int loops, remainder, i, j;
-        union {
-                char byte[2];
-                unsigned short word;
-        } tmp;
-   
-        iic_outw(adap, ITE_I2CSSAR, (unsigned short)buf[wrcount++]);
-        count--;
-        if (count == 0)
-                return -EIO;
-
-        loops =  count / 32;            /* 32-byte FIFO */
-        remainder = count % 32;
-
-        if(loops) {
-                for(i=0; i<loops; i++) {
-
-                        iic_outw(adap, ITE_I2CFBCR, 32);
-                        for(j=0; j<32/2; j++) {
-                                tmp.byte[1] = buf[wrcount++];
-                                tmp.byte[0] = buf[wrcount++];
-                                iic_outw(adap, ITE_I2CFDR, tmp.word); 
-                        }
-
-                        /* status FIFO overrun */
-                        iic_inw(adap, ITE_I2CFSR);
-                        iic_inw(adap, ITE_I2CFBCR);
-
-                        iic_outw(adap, ITE_I2CHCR, ITE_WRITE);  /* Issue WRITE command */
-
-                        /* Wait for transmission to complete */
-                        timeout = wait_for_pin(adap, &status);
-                        if(timeout) {
-                                iic_stop(adap);
-                                printk("iic_sendbytes: %s write timeout.\n", i2c_adap->name);
-                                return -EREMOTEIO; /* got a better one ?? */
-        }
-                        if (status & ITE_I2CHSR_DB) {
-                                iic_stop(adap);
-                                printk("iic_sendbytes: %s write error - no ack.\n", i2c_adap->name);
-                                return -EREMOTEIO; /* got a better one ?? */
-                        }
-                }
-        }
-        if(remainder) {
-                iic_outw(adap, ITE_I2CFBCR, remainder);
-                for(i=0; i<remainder/2; i++) {
-                        tmp.byte[1] = buf[wrcount++];
-                        tmp.byte[0] = buf[wrcount++];
-                        iic_outw(adap, ITE_I2CFDR, tmp.word);
-                }
-
-                /* status FIFO overrun */
-                iic_inw(adap, ITE_I2CFSR);
-                iic_inw(adap, ITE_I2CFBCR);
-
-                iic_outw(adap, ITE_I2CHCR, ITE_WRITE);  /* Issue WRITE command */
-
-                timeout = wait_for_pin(adap, &status);
-                if(timeout) {
-                        iic_stop(adap);
-                        printk("iic_sendbytes: %s write timeout.\n", i2c_adap->name);
-                        return -EREMOTEIO; /* got a better one ?? */
-                }
-#ifndef STUB_I2C
-                if (status & ITE_I2CHSR_DB) { 
-                        iic_stop(adap);
-                        printk("iic_sendbytes: %s write error - no ack.\n", i2c_adap->name);
-                        return -EREMOTEIO; /* got a better one ?? */
-                }
-#endif
-        }
-        iic_stop(adap);
-        return wrcount;
-}
-
-
-static int iic_readbytes(struct i2c_adapter *i2c_adap, char *buf, int count,
-        int sread)
-{
-        int rdcount=0, i, timeout;
-        short status;
-        struct i2c_algo_iic_data *adap = i2c_adap->algo_data;
-        int loops, remainder, j;
-        union {
-                char byte[2];
-                unsigned short word;
-        } tmp;
-                
-        loops = count / 32;                             /* 32-byte FIFO */
-        remainder = count % 32;
-
-        if(loops) {
-                for(i=0; i<loops; i++) {
-                        iic_outw(adap, ITE_I2CFBCR, 32);
-                        if (sread)
-                                iic_outw(adap, ITE_I2CHCR, ITE_SREAD);
-                        else
-                                iic_outw(adap, ITE_I2CHCR, ITE_READ);           /* Issue READ command */
-
-                        timeout = wait_for_pin(adap, &status);
-                        if(timeout) {
-                                iic_stop(adap);
-                                printk("iic_readbytes:  %s read timeout.\n", i2c_adap->name);
-                                return (-1);
-                        }
-#ifndef STUB_I2C
-                        if (status & ITE_I2CHSR_DB) {
-                                iic_stop(adap);
-                                printk("iic_readbytes: %s read error - no ack.\n", i2c_adap->name);
-                                return (-1);
-                        }
-#endif
-
-                        timeout = wait_for_fe(adap, &status);
-                        if(timeout) {
-                                iic_stop(adap);
-                                printk("iic_readbytes:  %s FIFO is empty\n", i2c_adap->name);
-                                return (-1); 
-                        }
-
-                        for(j=0; j<32/2; j++) {
-                                tmp.word = iic_inw(adap, ITE_I2CFDR);
-                                buf[rdcount++] = tmp.byte[1];
-                                buf[rdcount++] = tmp.byte[0];
-                        }
-
-                        /* status FIFO underrun */
-                        iic_inw(adap, ITE_I2CFSR);
-
-                }
-        }
-
-
-        if(remainder) {
-                remainder=(remainder+1)/2 * 2;
-                iic_outw(adap, ITE_I2CFBCR, remainder);
-                if (sread)
-                        iic_outw(adap, ITE_I2CHCR, ITE_SREAD);
-                else
-                iic_outw(adap, ITE_I2CHCR, ITE_READ);           /* Issue READ command */
-
-                timeout = wait_for_pin(adap, &status);
-                if(timeout) {
-                        iic_stop(adap);
-                        printk("iic_readbytes:  %s read timeout.\n", i2c_adap->name);
-                        return (-1);
-                }
-#ifndef STUB_I2C
-                if (status & ITE_I2CHSR_DB) {
-                        iic_stop(adap);
-                        printk("iic_readbytes: %s read error - no ack.\n", i2c_adap->name);
-                        return (-1);
-                }
-#endif
-                timeout = wait_for_fe(adap, &status);
-                if(timeout) {
-                        iic_stop(adap);
-                        printk("iic_readbytes:  %s FIFO is empty\n", i2c_adap->name);
-                        return (-1);
-                }         
-
-                for(i=0; i<(remainder+1)/2; i++) {
-                        tmp.word = iic_inw(adap, ITE_I2CFDR);
-                        buf[rdcount++] = tmp.byte[1];
-                        buf[rdcount++] = tmp.byte[0];
-                }
-
-                /* status FIFO underrun */
-                iic_inw(adap, ITE_I2CFSR);
-
-        }
-
-        iic_stop(adap);
-        return rdcount;
-}
-
-
-/* This function implements combined transactions.  Combined
- * transactions consist of combinations of reading and writing blocks of data.
- * Each transfer (i.e. a read or a write) is separated by a repeated start
- * condition.
- */
-#if 0
-static int iic_combined_transaction(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num) 
-{
-   int i;
-   struct i2c_msg *pmsg;
-   int ret;
-
-   DEB2(printk("Beginning combined transaction\n"));
-
-   for(i=0; i<(num-1); i++) {
-      pmsg = &msgs[i];
-      if(pmsg->flags & I2C_M_RD) {
-         DEB2(printk("  This one is a read\n"));
-         ret = iic_readbytes(i2c_adap, pmsg->buf, pmsg->len, IIC_COMBINED_XFER);
-      }
-      else if(!(pmsg->flags & I2C_M_RD)) {
-         DEB2(printk("This one is a write\n"));
-         ret = iic_sendbytes(i2c_adap, pmsg->buf, pmsg->len, IIC_COMBINED_XFER);
-      }
-   }
-   /* Last read or write segment needs to be terminated with a stop */
-   pmsg = &msgs[i];
-
-   if(pmsg->flags & I2C_M_RD) {
-      DEB2(printk("Doing the last read\n"));
-      ret = iic_readbytes(i2c_adap, pmsg->buf, pmsg->len, IIC_SINGLE_XFER);
-   }
-   else if(!(pmsg->flags & I2C_M_RD)) {
-      DEB2(printk("Doing the last write\n"));
-      ret = iic_sendbytes(i2c_adap, pmsg->buf, pmsg->len, IIC_SINGLE_XFER);
-   }
-
-   return ret;
-}
-#endif
-
-
-/* Whenever we initiate a transaction, the first byte clocked
- * onto the bus after the start condition is the address (7 bit) of the
- * device we want to talk to.  This function manipulates the address specified
- * so that it makes sense to the hardware when written to the IIC peripheral.
- *
- * Note: 10 bit addresses are not supported in this driver, although they are
- * supported by the hardware.  This functionality needs to be implemented.
- */
-static inline int iic_doAddress(struct i2c_algo_iic_data *adap,
-                                struct i2c_msg *msg, int retries) 
-{
-        unsigned short flags = msg->flags;
-        unsigned int addr;
-        int ret;
-
-/* Ten bit addresses not supported right now */
-        if ( (flags & I2C_M_TEN)  ) { 
-#if 0
-                addr = 0xf0 | (( msg->addr >> 7) & 0x03);
-                DEB2(printk("addr0: %d\n",addr));
-                ret = try_address(adap, addr, retries);
-                if (ret!=1) {
-                        printk("iic_doAddress: died at extended address code.\n");
-                        return -EREMOTEIO;
-                }
-                iic_outw(adap,msg->addr & 0x7f);
-                if (ret != 1) {
-                        printk("iic_doAddress: died at 2nd address code.\n");
-                        return -EREMOTEIO;
-                }
-                if ( flags & I2C_M_RD ) {
-                        i2c_repstart(adap);
-                        addr |= 0x01;
-                        ret = try_address(adap, addr, retries);
-                        if (ret!=1) {
-                                printk("iic_doAddress: died at extended address code.\n");
-                                return -EREMOTEIO;
-                        }
-                }
-#endif
-        } else {
-
-                addr = ( msg->addr << 1 );
-
-#if 0
-                if (flags & I2C_M_RD )
-                        addr |= 1;
-                if (flags & I2C_M_REV_DIR_ADDR )
-                        addr ^= 1;
-#endif
-
-                if (iic_inw(adap, ITE_I2CSAR) != addr) {
-                        iic_outw(adap, ITE_I2CSAR, addr);
-                        ret = try_address(adap, addr, retries);
-                        if (ret!=1) {
-                                printk("iic_doAddress: died at address code.\n");
-                                return -EREMOTEIO;
-                        }
-                }
-
-  }
-
-        return 0;
-}
-
-
-/* Description: Prepares the controller for a transaction (clearing status
- * registers, data buffers, etc), and then calls either iic_readbytes or
- * iic_sendbytes to do the actual transaction.
- *
- * still to be done: Before we issue a transaction, we should
- * verify that the bus is not busy or in some unknown state.
- */
-static int iic_xfer(struct i2c_adapter *i2c_adap,
-                    struct i2c_msg *msgs, 
-                    int num)
-{
-        struct i2c_algo_iic_data *adap = i2c_adap->algo_data;
-        struct i2c_msg *pmsg;
-        int i = 0;
-        int ret, timeout;
-    
-        pmsg = &msgs[i];
-
-        if(!pmsg->len) {
-                DEB2(printk("iic_xfer: read/write length is 0\n");)
-                return -EIO;
-        }
-        if(!(pmsg->flags & I2C_M_RD) && (!(pmsg->len)%2) ) {
-                DEB2(printk("iic_xfer: write buffer length is not odd\n");)
-                return -EIO; 
-        }
-
-        /* Wait for any pending transfers to complete */
-        timeout = wait_for_bb(adap);
-        if (timeout) {
-                DEB2(printk("iic_xfer: Timeout waiting for host not busy\n");)
-                return -EIO;
-        }
-
-        /* Flush FIFO */
-        iic_outw(adap, ITE_I2CFCR, ITE_I2CFCR_FLUSH);
-
-        /* Load address */
-        ret = iic_doAddress(adap, pmsg, i2c_adap->retries);
-        if (ret)
-                return -EIO;
-
-#if 0
-        /* Combined transaction (read and write) */
-        if(num > 1) {
-           DEB2(printk("iic_xfer: Call combined transaction\n"));
-           ret = iic_combined_transaction(i2c_adap, msgs, num);
-  }
-#endif
-
-        DEB3(printk("iic_xfer: Msg %d, addr=0x%x, flags=0x%x, len=%d\n",
-                i, msgs[i].addr, msgs[i].flags, msgs[i].len);)
-
-        if(pmsg->flags & I2C_M_RD)              /* Read */
-                ret = iic_readbytes(i2c_adap, pmsg->buf, pmsg->len, 0);
-        else {                                                                                                  /* Write */ 
-                udelay(1000);
-                ret = iic_sendbytes(i2c_adap, pmsg->buf, pmsg->len);
-        }
-
-        if (ret != pmsg->len)
-                DEB3(printk("iic_xfer: error or fail on read/write %d bytes.\n",ret)); 
-        else
-                DEB3(printk("iic_xfer: read/write %d bytes.\n",ret));
-
-        return ret;
-}
-
-
-/* Implements device specific ioctls.  Higher level ioctls can
- * be found in i2c-core.c and are typical of any i2c controller (specifying
- * slave address, timeouts, etc).  These ioctls take advantage of any hardware
- * features built into the controller for which this algorithm-adapter set
- * was written.  These ioctls allow you to take control of the data and clock
- * lines and set the either high or low,
- * similar to a GPIO pin.
- */
-static int algo_control(struct i2c_adapter *adapter, 
-        unsigned int cmd, unsigned long arg)
-{
-
-  struct i2c_algo_iic_data *adap = adapter->algo_data;
-  struct i2c_iic_msg s_msg;
-  char *buf;
-        int ret;
-
-  if (cmd == I2C_SREAD) {
-                if(copy_from_user(&s_msg, (struct i2c_iic_msg *)arg, 
-                                sizeof(struct i2c_iic_msg))) 
-                        return -EFAULT;
-                buf = kmalloc(s_msg.len, GFP_KERNEL);
-                if (buf== NULL)
-                        return -ENOMEM;
-
-                /* Flush FIFO */
-                iic_outw(adap, ITE_I2CFCR, ITE_I2CFCR_FLUSH);
-
-                /* Load address */
-                iic_outw(adap, ITE_I2CSAR,s_msg.addr<<1);
-                iic_outw(adap, ITE_I2CSSAR,s_msg.waddr & 0xff);
-
-                ret = iic_readbytes(adapter, buf, s_msg.len, 1);
-                if (ret>=0) {
-                        if(copy_to_user( s_msg.buf, buf, s_msg.len) ) 
-                                ret = -EFAULT;
-                }
-                kfree(buf);
-        }
-        return 0;
-}
-
-
-static u32 iic_func(struct i2c_adapter *adap)
-{
-        return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR | 
-               I2C_FUNC_PROTOCOL_MANGLING; 
-}
-
-/* -----exported algorithm data: -------------------------------------  */
-
-static struct i2c_algorithm iic_algo = {
-        .master_xfer    = iic_xfer,
-        .algo_control   = algo_control, /* ioctl */
-        .functionality  = iic_func,
-};
-
-
-/* 
- * registering functions to load algorithms at runtime 
- */
-int i2c_iic_add_bus(struct i2c_adapter *adap)
-{
-        struct i2c_algo_iic_data *iic_adap = adap->algo_data;
-
-        if (iic_test) {
-                int ret = test_bus(iic_adap, adap->name);
-                if (ret<0)
-                        return -ENODEV;
-        }
-
-        DEB2(printk("i2c-algo-ite: hw routines for %s registered.\n",
-                    adap->name));
-
-        /* register new adapter to i2c module... */
-        adap->algo = &iic_algo;
-
-        adap->timeout = 100;    /* default values, should       */
-        adap->retries = 3;              /* be replaced by defines       */
-        adap->flags = 0;
-
-        iic_init(iic_adap);
-        return i2c_add_adapter(adap);
-}
-
-
-int i2c_iic_del_bus(struct i2c_adapter *adap)
-{
-        int res;
-        if ((res = i2c_del_adapter(adap)) < 0)
-                return res;
-        DEB2(printk("i2c-algo-ite: adapter unregistered: %s\n",adap->name));
-
-        return 0;
-}
-
-
-int __init i2c_algo_iic_init (void)
-{
-        printk(KERN_INFO "ITE iic (i2c) algorithm module\n");
-        return 0;
-}
-
-
-void i2c_algo_iic_exit(void)
-{
-        return;
-}
-
-
-EXPORT_SYMBOL(i2c_iic_add_bus);
-EXPORT_SYMBOL(i2c_iic_del_bus);
-
-/* The MODULE_* macros resolve to nothing if MODULES is not defined
- * when this file is compiled.
- */
-MODULE_AUTHOR("MontaVista Software <www.mvista.com>");
-MODULE_DESCRIPTION("ITE iic algorithm");
-MODULE_LICENSE("GPL");
-
-module_param(iic_test, bool, 0);
-module_param(i2c_debug, int, S_IRUGO | S_IWUSR);
-
-MODULE_PARM_DESC(iic_test, "Test if the I2C bus is available");
-MODULE_PARM_DESC(i2c_debug,
-        "debug level - 0 off; 1 normal; 2,3 more verbose; 9 iic-protocol");
-
-
-/* This function resolves to init_module (the function invoked when a module
- * is loaded via insmod) when this file is compiled with MODULES defined.
- * Otherwise (i.e. if you want this driver statically linked to the kernel),
- * a pointer to this function is stored in a table and called
- * during the initialization of the kernel (in do_basic_setup in /init/main.c) 
- *
- * All this functionality is complements of the macros defined in linux/init.h
- */
-module_init(i2c_algo_iic_init);
-
-
-/* If MODULES is defined when this file is compiled, then this function will
- * resolved to cleanup_module.
- */
-module_exit(i2c_algo_iic_exit);
diff --git a/drivers/i2c/algos/i2c-algo-ite.h b/drivers/i2c/algos/i2c-algo-ite.h
deleted file mode 100644
index a8ca3c9b546a..000000000000
--- a/drivers/i2c/algos/i2c-algo-ite.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
-   --------------------------------------------------------------------
-   i2c-ite.h: Global defines for the I2C controller on board the    
-                 ITE MIPS processor.                                
-   --------------------------------------------------------------------
-   Hai-Pao Fan, MontaVista Software, Inc.
-   hpfan@mvista.com or source@mvista.com
-
-   Copyright 2001 MontaVista Software Inc.
-
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, 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 DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
-
- */
-
-#ifndef I2C_ITE_H
-#define I2C_ITE_H 1
-
-#include <asm/it8172/it8172.h>
-
-/* I2C Registers */
-#define ITE_I2CHCR      IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x30
-#define ITE_I2CHSR      IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x34
-#define ITE_I2CSAR      IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x38
-#define ITE_I2CSSAR     IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x3c
-#define ITE_I2CCKCNT    IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x48
-#define ITE_I2CSHDR     IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x4c
-#define ITE_I2CRSUR     IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x50
-#define ITE_I2CPSUR     IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x54
-
-#define ITE_I2CFDR      IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x70
-#define ITE_I2CFBCR     IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x74
-#define ITE_I2CFCR      IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x78
-#define ITE_I2CFSR      IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x7c
-
-
-/* Host Control Register ITE_I2CHCR */
-#define ITE_I2CHCR_HCE  0x01    /* Enable I2C Host Controller */
-#define ITE_I2CHCR_IE   0x02    /* Enable the interrupt after completing
-                                   the current transaction */
-#define ITE_I2CHCR_CP_W 0x00    /* bit2-4 000 - Write */
-#define ITE_I2CHCR_CP_R 0x08    /*        010 - Current address read */
-#define ITE_I2CHCR_CP_S 0x10    /*        100 - Sequential read */
-#define ITE_I2CHCR_ST   0x20    /* Initiates the I2C host controller to execute
-                                   the command and send the data programmed in
-                                   all required registers to I2C bus */
-#define ITE_CMD         ITE_I2CHCR_HCE | ITE_I2CHCR_IE | ITE_I2CHCR_ST
-#define ITE_WRITE       ITE_CMD | ITE_I2CHCR_CP_W
-#define ITE_READ        ITE_CMD | ITE_I2CHCR_CP_R
-#define ITE_SREAD       ITE_CMD | ITE_I2CHCR_CP_S
-
-/* Host Status Register ITE_I2CHSR */
-#define ITE_I2CHSR_DB   0x01    /* Device is busy, receives NACK response except
-                                   in the first and last bytes */
-#define ITE_I2CHSR_DNE  0x02    /* Target address on I2C bus does not exist */
-#define ITE_I2CHSR_TDI  0x04    /* R/W Transaction on I2C bus was completed */
-#define ITE_I2CHSR_HB   0x08    /* Host controller is processing transactions */
-#define ITE_I2CHSR_FER  0x10    /* Error occurs in the FIFO */
-
-/* Slave Address Register ITE_I2CSAR */
-#define ITE_I2CSAR_SA_MASK      0xfe    /* Target I2C device address */
-#define ITE_I2CSAR_ASO          0x0100  /* Output 1/0 to I2CAS port when the
-                                           next slave address is addressed */
-
-/* Slave Sub-address Register ITE_I2CSSAR */
-#define ITE_I2CSSAR_SUBA_MASK   0xff    /* Target I2C device sub-address */
-
-/* Clock Counter Register ITE_I2CCKCNT */
-#define ITE_I2CCKCNT_STOP       0x00    /* stop I2C clock */
-#define ITE_I2CCKCNT_HPCC_MASK  0x7f    /* SCL high period counter */
-#define ITE_I2CCKCNT_LPCC_MASK  0x7f00  /* SCL low period counter */
-
-/* START Hold Time Register ITE_I2CSHDR */
-/* value is counted based on 16 MHz internal clock */
-#define ITE_I2CSHDR_FM  0x0a    /* START condition at fast mode */
-#define ITE_I2CSHDR_SM  0x47    /* START contition at standard mode */
-
-/* (Repeated) START Setup Time Register ITE_I2CRSUR */
-/* value is counted based on 16 MHz internal clock */
-#define ITE_I2CRSUR_FM  0x0a    /* repeated START condition at fast mode */
-#define ITE_I2CRSUR_SM  0x50    /* repeated START condition at standard mode */
-
-/* STOP setup Time Register ITE_I2CPSUR */
-
-/* FIFO Data Register ITE_I2CFDR */
-#define ITE_I2CFDR_MASK         0xff
-
-/* FIFO Byte Count Register ITE_I2CFBCR */
-#define ITE_I2CFBCR_MASK        0x3f
-
-/* FIFO Control Register ITE_I2CFCR */
-#define ITE_I2CFCR_FLUSH        0x01    /* Flush FIFO and reset the FIFO point
-                                           and I2CFSR */
-/* FIFO Status Register ITE_I2CFSR */
-#define ITE_I2CFSR_FO   0x01    /* FIFO is overrun when write */
-#define ITE_I2CFSR_FU   0x02    /* FIFO is underrun when read */
-#define ITE_I2CFSR_FF   0x04    /* FIFO is full when write */
-#define ITE_I2CFSR_FE   0x08    /* FIFO is empty when read */
-
-#endif  /* I2C_ITE_H */
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index 9081c9fbcd29..36fdf971f080 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -381,14 +381,7 @@ int i2c_pca_add_bus(struct i2c_adapter *adap)
 
         return rval;
 }
-
-int i2c_pca_del_bus(struct i2c_adapter *adap)
-{
-        return i2c_del_adapter(adap);
-}
-
 EXPORT_SYMBOL(i2c_pca_add_bus);
-EXPORT_SYMBOL(i2c_pca_del_bus);
 
 MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>");
 MODULE_DESCRIPTION("I2C-Bus PCA9564 algorithm");
diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c
index 3b2003398966..ecb2c2d7d540 100644
--- a/drivers/i2c/algos/i2c-algo-pcf.c
+++ b/drivers/i2c/algos/i2c-algo-pcf.c
@@ -486,15 +486,7 @@ int i2c_pcf_add_bus(struct i2c_adapter *adap)
 
         return rval;
 }
-
-
-int i2c_pcf_del_bus(struct i2c_adapter *adap)
-{
-        return i2c_del_adapter(adap);
-}
-
 EXPORT_SYMBOL(i2c_pcf_add_bus);
-EXPORT_SYMBOL(i2c_pcf_del_bus);
 
 MODULE_AUTHOR("Hans Berglund <hb@spacetec.no>");
 MODULE_DESCRIPTION("I2C-Bus PCF8584 algorithm");
diff --git a/drivers/i2c/algos/i2c-algo-sgi.c b/drivers/i2c/algos/i2c-algo-sgi.c
index 490d99997fd0..ac2d5053078a 100644
--- a/drivers/i2c/algos/i2c-algo-sgi.c
+++ b/drivers/i2c/algos/i2c-algo-sgi.c
@@ -171,15 +171,7 @@ int i2c_sgi_add_bus(struct i2c_adapter *adap)
 
         return i2c_add_adapter(adap);
 }
-
-
-int i2c_sgi_del_bus(struct i2c_adapter *adap)
-{
-        return i2c_del_adapter(adap);
-}
-
 EXPORT_SYMBOL(i2c_sgi_add_bus);
-EXPORT_SYMBOL(i2c_sgi_del_bus);
 
 MODULE_AUTHOR("Ladislav Michl <ladis@linux-mips.org>");
 MODULE_DESCRIPTION("I2C-Bus SGI algorithm");
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 90f91d039ee2..e1989f3a2684 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -74,6 +74,13 @@ config I2C_AMD8111
           This driver can also be built as a module.  If so, the module
           will be called i2c-amd8111.
 
+config I2C_AT91
+        tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
+        depends on I2C && ARCH_AT91 && EXPERIMENTAL
+        help
+          This supports the use of the I2C interface on Atmel AT91
+          processors.
+
 config I2C_AU1550
         tristate "Au1550/Au1200 SMBus interface"
         depends on I2C && (SOC_AU1550 || SOC_AU1200)
@@ -209,18 +216,6 @@ config I2C_ISA
         tristate
         depends on I2C
 
-config I2C_ITE
-        tristate "ITE I2C Adapter"
-        depends on I2C && MIPS_ITE8172
-        select I2C_ALGOITE
-        help
-          This supports the ITE8172 I2C peripheral found on some MIPS
-          systems. Say Y if you have one of these. You should also say Y for
-          the ITE I2C driver algorithm support above.
-
-          This support is also available as a module.  If so, the module 
-          will be called i2c-ite.
-
 config I2C_IXP4XX
         tristate "IXP4xx GPIO-Based I2C Interface"
         depends on I2C && ARCH_IXP4XX
@@ -481,6 +476,17 @@ config I2C_STUB
 
           If you don't know what to do here, definitely say N.
 
+config I2C_VERSATILE
+        tristate "ARM Versatile/Realview I2C bus support"
+        depends on I2C && (ARCH_VERSATILE || ARCH_REALVIEW)
+        select I2C_ALGOBIT
+        help
+          Say yes if you want to support the I2C serial bus on ARMs Versatile
+          range of platforms.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-versatile.
+
 config I2C_VIA
         tristate "VIA 82C586B"
         depends on I2C && PCI && EXPERIMENTAL
@@ -548,4 +554,23 @@ config I2C_MV64XXX
           This driver can also be built as a module.  If so, the module
           will be called i2c-mv64xxx.
 
+config I2C_PNX
+        tristate "I2C bus support for Philips PNX targets"
+        depends on ARCH_PNX4008 && I2C
+        help
+          This driver supports the Philips IP3204 I2C IP block master and/or
+          slave controller
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-pnx.
+
+config I2C_PNX_EARLY
+        bool "Early initialization for I2C on PNXxxxx"
+        depends on I2C_PNX=y
+        help
+          Under certain circumstances one may need to make sure I2C on PNXxxxx
+          is initialized earlier than some other driver that depends on it
+          (for instance, that might be USB in case of PNX4008). With this
+          option turned on you can guarantee that.
+
 endmenu
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 493c87289b62..37196c1d0794 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_I2C_ALI15X3)	+= i2c-ali15x3.o
 obj-$(CONFIG_I2C_AMD756)        += i2c-amd756.o
 obj-$(CONFIG_I2C_AMD756_S4882)  += i2c-amd756-s4882.o
 obj-$(CONFIG_I2C_AMD8111)       += i2c-amd8111.o
+obj-$(CONFIG_I2C_AT91)          += i2c-at91.o
 obj-$(CONFIG_I2C_AU1550)        += i2c-au1550.o
 obj-$(CONFIG_I2C_ELEKTOR)       += i2c-elektor.o
 obj-$(CONFIG_I2C_HYDRA)         += i2c-hydra.o
@@ -16,7 +17,6 @@ obj-$(CONFIG_I2C_I810)		+= i2c-i810.o
 obj-$(CONFIG_I2C_IBM_IIC)       += i2c-ibm_iic.o
 obj-$(CONFIG_I2C_IOP3XX)        += i2c-iop3xx.o
 obj-$(CONFIG_I2C_ISA)           += i2c-isa.o
-obj-$(CONFIG_I2C_ITE)           += i2c-ite.o
 obj-$(CONFIG_I2C_IXP2000)       += i2c-ixp2000.o
 obj-$(CONFIG_I2C_IXP4XX)        += i2c-ixp4xx.o
 obj-$(CONFIG_I2C_POWERMAC)      += i2c-powermac.o
@@ -29,6 +29,7 @@ obj-$(CONFIG_I2C_PARPORT)	+= i2c-parport.o
 obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o
 obj-$(CONFIG_I2C_PCA_ISA)       += i2c-pca-isa.o
 obj-$(CONFIG_I2C_PIIX4)         += i2c-piix4.o
+obj-$(CONFIG_I2C_PNX)           += i2c-pnx.o
 obj-$(CONFIG_I2C_PROSAVAGE)     += i2c-prosavage.o
 obj-$(CONFIG_I2C_PXA)           += i2c-pxa.o
 obj-$(CONFIG_I2C_RPXLITE)       += i2c-rpx.o
@@ -39,6 +40,7 @@ obj-$(CONFIG_I2C_SIS5595)	+= i2c-sis5595.o
 obj-$(CONFIG_I2C_SIS630)        += i2c-sis630.o
 obj-$(CONFIG_I2C_SIS96X)        += i2c-sis96x.o
 obj-$(CONFIG_I2C_STUB)          += i2c-stub.o
+obj-$(CONFIG_I2C_VERSATILE)     += i2c-versatile.o
 obj-$(CONFIG_I2C_VIA)           += i2c-via.o
 obj-$(CONFIG_I2C_VIAPRO)        += i2c-viapro.o
 obj-$(CONFIG_I2C_VOODOO3)       += i2c-voodoo3.o
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
new file mode 100644
index 000000000000..67f91bdda089
--- /dev/null
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -0,0 +1,325 @@
+/*
+    i2c Support for Atmel's AT91 Two-Wire Interface (TWI)
+
+    Copyright (C) 2004 Rick Bronson
+    Converted to 2.6 by Andrew Victor <andrew@sanpeople.com>
+
+    Borrowed heavily from original work by:
+    Copyright (C) 2000 Philip Edelbrock <phil@stimpy.netroedge.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+*/
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/at91_twi.h>
+#include <asm/arch/board.h>
+#include <asm/arch/cpu.h>
+
+#define TWI_CLOCK               100000          /* Hz. max 400 Kbits/sec */
+
+
+static struct clk *twi_clk;
+static void __iomem *twi_base;
+
+#define at91_twi_read(reg)              __raw_readl(twi_base + (reg))
+#define at91_twi_write(reg, val)        __raw_writel((val), twi_base + (reg))
+
+
+/*
+ * Initialize the TWI hardware registers.
+ */
+static void __devinit at91_twi_hwinit(void)
+{
+        unsigned long cdiv, ckdiv;
+
+        at91_twi_write(AT91_TWI_IDR, 0xffffffff);       /* Disable all interrupts */
+        at91_twi_write(AT91_TWI_CR, AT91_TWI_SWRST);    /* Reset peripheral */
+        at91_twi_write(AT91_TWI_CR, AT91_TWI_MSEN);     /* Set Master mode */
+
+        /* Calcuate clock dividers */
+        cdiv = (clk_get_rate(twi_clk) / (2 * TWI_CLOCK)) - 3;
+        cdiv = cdiv + 1;        /* round up */
+        ckdiv = 0;
+        while (cdiv > 255) {
+                ckdiv++;
+                cdiv = cdiv >> 1;
+        }
+
+        if (cpu_is_at91rm9200()) {                      /* AT91RM9200 Errata #22 */
+                if (ckdiv > 5) {
+                        printk(KERN_ERR "AT91 I2C: Invalid TWI_CLOCK value!\n");
+                        ckdiv = 5;
+                }
+        }
+
+        at91_twi_write(AT91_TWI_CWGR, (ckdiv << 16) | (cdiv << 8) | cdiv);
+}
+
+/*
+ * Poll the i2c status register until the specified bit is set.
+ * Returns 0 if timed out (100 msec).
+ */
+static short at91_poll_status(unsigned long bit)
+{
+        int loop_cntr = 10000;
+
+        do {
+                udelay(10);
+        } while (!(at91_twi_read(AT91_TWI_SR) & bit) && (--loop_cntr > 0));
+
+        return (loop_cntr > 0);
+}
+
+static int xfer_read(struct i2c_adapter *adap, unsigned char *buf, int length)
+{
+        /* Send Start */
+        at91_twi_write(AT91_TWI_CR, AT91_TWI_START);
+
+        /* Read data */
+        while (length--) {
+                if (!length)    /* need to send Stop before reading last byte */
+                        at91_twi_write(AT91_TWI_CR, AT91_TWI_STOP);
+                if (!at91_poll_status(AT91_TWI_RXRDY)) {
+                        dev_dbg(&adap->dev, "RXRDY timeout\n");
+                        return -ETIMEDOUT;
+                }
+                *buf++ = (at91_twi_read(AT91_TWI_RHR) & 0xff);
+        }
+
+        return 0;
+}
+
+static int xfer_write(struct i2c_adapter *adap, unsigned char *buf, int length)
+{
+        /* Load first byte into transmitter */
+        at91_twi_write(AT91_TWI_THR, *buf++);
+
+        /* Send Start */
+        at91_twi_write(AT91_TWI_CR, AT91_TWI_START);
+
+        do {
+                if (!at91_poll_status(AT91_TWI_TXRDY)) {
+                        dev_dbg(&adap->dev, "TXRDY timeout\n");
+                        return -ETIMEDOUT;
+                }
+
+                length--;       /* byte was transmitted */
+
+                if (length > 0)         /* more data to send? */
+                        at91_twi_write(AT91_TWI_THR, *buf++);
+        } while (length);
+
+        /* Send Stop */
+        at91_twi_write(AT91_TWI_CR, AT91_TWI_STOP);
+
+        return 0;
+}
+
+/*
+ * Generic i2c master transfer entrypoint.
+ *
+ * Note: We do not use Atmel's feature of storing the "internal device address".
+ * Instead the "internal device address" has to be written using a seperate
+ * i2c message.
+ * http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2004-September/024411.html
+ */
+static int at91_xfer(struct i2c_adapter *adap, struct i2c_msg *pmsg, int num)
+{
+        int i, ret;
+
+        dev_dbg(&adap->dev, "at91_xfer: processing %d messages:\n", num);
+
+        for (i = 0; i < num; i++) {
+                dev_dbg(&adap->dev, " #%d: %sing %d byte%s %s 0x%02x\n", i,
+                        pmsg->flags & I2C_M_RD ? "read" : "writ",
+                        pmsg->len, pmsg->len > 1 ? "s" : "",
+                        pmsg->flags & I2C_M_RD ? "from" : "to", pmsg->addr);
+
+                at91_twi_write(AT91_TWI_MMR, (pmsg->addr << 16)
+                        | ((pmsg->flags & I2C_M_RD) ? AT91_TWI_MREAD : 0));
+
+                if (pmsg->len && pmsg->buf) {   /* sanity check */
+                        if (pmsg->flags & I2C_M_RD)
+                                ret = xfer_read(adap, pmsg->buf, pmsg->len);
+                        else
+                                ret = xfer_write(adap, pmsg->buf, pmsg->len);
+
+                        if (ret)
+                                return ret;
+
+                        /* Wait until transfer is finished */
+                        if (!at91_poll_status(AT91_TWI_TXCOMP)) {
+                                dev_dbg(&adap->dev, "TXCOMP timeout\n");
+                                return -ETIMEDOUT;
+                        }
+                }
+                dev_dbg(&adap->dev, "transfer complete\n");
+                pmsg++;         /* next message */
+        }
+        return i;
+}
+
+/*
+ * Return list of supported functionality.
+ */
+static u32 at91_func(struct i2c_adapter *adapter)
+{
+        return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static struct i2c_algorithm at91_algorithm = {
+        .master_xfer    = at91_xfer,
+        .functionality  = at91_func,
+};
+
+/*
+ * Main initialization routine.
+ */
+static int __devinit at91_i2c_probe(struct platform_device *pdev)
+{
+        struct i2c_adapter *adapter;
+        struct resource *res;
+        int rc;
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!res)
+                return -ENXIO;
+
+        if (!request_mem_region(res->start, res->end - res->start + 1, "at91_i2c"))
+                return -EBUSY;
+
+        twi_base = ioremap(res->start, res->end - res->start + 1);
+        if (!twi_base) {
+                rc = -ENOMEM;
+                goto fail0;
+        }
+
+        twi_clk = clk_get(NULL, "twi_clk");
+        if (IS_ERR(twi_clk)) {
+                dev_err(&pdev->dev, "no clock defined\n");
+                rc = -ENODEV;
+                goto fail1;
+        }
+
+        adapter = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
+        if (adapter == NULL) {
+                dev_err(&pdev->dev, "can't allocate inteface!\n");
+                rc = -ENOMEM;
+                goto fail2;
+        }
+        sprintf(adapter->name, "AT91");
+        adapter->algo = &at91_algorithm;
+        adapter->class = I2C_CLASS_HWMON;
+        adapter->dev.parent = &pdev->dev;
+
+        platform_set_drvdata(pdev, adapter);
+
+        clk_enable(twi_clk);            /* enable peripheral clock */
+        at91_twi_hwinit();              /* initialize TWI controller */
+
+        rc = i2c_add_adapter(adapter);
+        if (rc) {
+                dev_err(&pdev->dev, "Adapter %s registration failed\n",
+                                adapter->name);
+                goto fail3;
+        }
+
+        dev_info(&pdev->dev, "AT91 i2c bus driver.\n");
+        return 0;
+
+fail3:
+        platform_set_drvdata(pdev, NULL);
+        kfree(adapter);
+        clk_disable(twi_clk);
+fail2:
+        clk_put(twi_clk);
+fail1:
+        iounmap(twi_base);
+fail0:
+        release_mem_region(res->start, res->end - res->start + 1);
+
+        return rc;
+}
+
+static int __devexit at91_i2c_remove(struct platform_device *pdev)
+{
+        struct i2c_adapter *adapter = platform_get_drvdata(pdev);
+        struct resource *res;
+        int rc;
+
+        rc = i2c_del_adapter(adapter);
+        platform_set_drvdata(pdev, NULL);
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        iounmap(twi_base);
+        release_mem_region(res->start, res->end - res->start + 1);
+
+        clk_disable(twi_clk);           /* disable peripheral clock */
+        clk_put(twi_clk);
+
+        return rc;
+}
+
+#ifdef CONFIG_PM
+
+/* NOTE: could save a few mA by keeping clock off outside of at91_xfer... */
+
+static int at91_i2c_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+        clk_disable(twi_clk);
+        return 0;
+}
+
+static int at91_i2c_resume(struct platform_device *pdev)
+{
+        return clk_enable(twi_clk);
+}
+
+#else
+#define at91_i2c_suspend        NULL
+#define at91_i2c_resume         NULL
+#endif
+
+static struct platform_driver at91_i2c_driver = {
+        .probe          = at91_i2c_probe,
+        .remove         = __devexit_p(at91_i2c_remove),
+        .suspend        = at91_i2c_suspend,
+        .resume         = at91_i2c_resume,
+        .driver         = {
+                .name   = "at91_i2c",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init at91_i2c_init(void)
+{
+        return platform_driver_register(&at91_i2c_driver);
+}
+
+static void __exit at91_i2c_exit(void)
+{
+        platform_driver_unregister(&at91_i2c_driver);
+}
+
+module_init(at91_i2c_init);
+module_exit(at91_i2c_exit);
+
+MODULE_AUTHOR("Rick Bronson");
+MODULE_DESCRIPTION("I2C (TWI) driver for Atmel AT91");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c
index a591fe685f06..834967464814 100644
--- a/drivers/i2c/busses/i2c-elektor.c
+++ b/drivers/i2c/busses/i2c-elektor.c
@@ -293,7 +293,7 @@ static int __init i2c_pcfisa_init(void)
 
 static void i2c_pcfisa_exit(void)
 {
-        i2c_pcf_del_bus(&pcf_isa_ops);
+        i2c_del_adapter(&pcf_isa_ops);
 
         if (irq > 0) {
                 disable_irq(irq);
diff --git a/drivers/i2c/busses/i2c-hydra.c b/drivers/i2c/busses/i2c-hydra.c
index 457d48a0ab9d..9832f773651d 100644
--- a/drivers/i2c/busses/i2c-hydra.c
+++ b/drivers/i2c/busses/i2c-hydra.c
@@ -146,7 +146,7 @@ static int __devinit hydra_probe(struct pci_dev *dev,
 static void __devexit hydra_remove(struct pci_dev *dev)
 {
         pdregw(hydra_bit_data.data, 0);         /* clear SCLK_OE and SDAT_OE */
-        i2c_bit_del_bus(&hydra_adap);
+        i2c_del_adapter(&hydra_adap);
         iounmap(hydra_bit_data.data);
         release_mem_region(pci_resource_start(dev, 0)+
                            offsetof(struct Hydra, CachePD), 4);
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index c7be2fdbd86b..ae625b854470 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -470,12 +470,20 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id
         int err;
 
         I801_dev = dev;
-        if ((dev->device == PCI_DEVICE_ID_INTEL_82801DB_3) ||
-            (dev->device == PCI_DEVICE_ID_INTEL_82801EB_3) ||
-            (dev->device == PCI_DEVICE_ID_INTEL_ESB_4))
+        switch (dev->device) {
+        case PCI_DEVICE_ID_INTEL_82801DB_3:
+        case PCI_DEVICE_ID_INTEL_82801EB_3:
+        case PCI_DEVICE_ID_INTEL_ESB_4:
+        case PCI_DEVICE_ID_INTEL_ICH6_16:
+        case PCI_DEVICE_ID_INTEL_ICH7_17:
+        case PCI_DEVICE_ID_INTEL_ESB2_17:
+        case PCI_DEVICE_ID_INTEL_ICH8_5:
+        case PCI_DEVICE_ID_INTEL_ICH9_6:
                 isich4 = 1;
-        else
+                break;
+        default:
                 isich4 = 0;
+        }
 
         err = pci_enable_device(dev);
         if (err) {
diff --git a/drivers/i2c/busses/i2c-i810.c b/drivers/i2c/busses/i2c-i810.c
index b66fb6bb1870..10c98bc88aa6 100644
--- a/drivers/i2c/busses/i2c-i810.c
+++ b/drivers/i2c/busses/i2c-i810.c
@@ -219,14 +219,14 @@ static int __devinit i810_probe(struct pci_dev *dev, const struct pci_device_id
                 return retval;
         retval = i2c_bit_add_bus(&i810_ddc_adapter);
         if (retval)
-                i2c_bit_del_bus(&i810_i2c_adapter);
+                i2c_del_adapter(&i810_i2c_adapter);
         return retval;
 }
 
 static void __devexit i810_remove(struct pci_dev *dev)
 {
-        i2c_bit_del_bus(&i810_ddc_adapter);
-        i2c_bit_del_bus(&i810_i2c_adapter);
+        i2c_del_adapter(&i810_ddc_adapter);
+        i2c_del_adapter(&i810_i2c_adapter);
         iounmap(ioaddr);
 }
 
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 781a99c1647a..1898e9987021 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -680,6 +680,12 @@ static int __devinit iic_probe(struct ocp_device *ocp){
         dev->idx = ocp->def->index;
         ocp_set_drvdata(ocp, dev);
         
+        if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs),
+                                "ibm_iic")) {
+                ret = -EBUSY;
+                goto fail1;
+        }
+
         if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){
                 printk(KERN_CRIT "ibm-iic%d: failed to ioremap device registers\n",
                         dev->idx);
@@ -750,6 +756,8 @@ fail:
 
         iounmap(dev->vaddr);
 fail2:  
+        release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
+fail1:
         ocp_set_drvdata(ocp, NULL);
         kfree(dev);     
         return ret;
@@ -777,6 +785,7 @@ static void __devexit iic_remove(struct ocp_device *ocp)
                     free_irq(dev->irq, dev);
                 }
                 iounmap(dev->vaddr);
+                release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
                 kfree(dev);
         }
 }
diff --git a/drivers/i2c/busses/i2c-ite.c b/drivers/i2c/busses/i2c-ite.c
deleted file mode 100644
index f7d71869b3b9..000000000000
--- a/drivers/i2c/busses/i2c-ite.c
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
-   -------------------------------------------------------------------------
-   i2c-adap-ite.c i2c-hw access for the IIC peripheral on the ITE MIPS system
-   -------------------------------------------------------------------------
-   Hai-Pao Fan, MontaVista Software, Inc.
-   hpfan@mvista.com or source@mvista.com
-
-   Copyright 2001 MontaVista Software Inc.
-
-   ----------------------------------------------------------------------------
-   This file was highly leveraged from i2c-elektor.c, which was created
-   by Simon G. Vogl and Hans Berglund:
-
- 
-     Copyright (C) 1995-97 Simon G. Vogl
-                   1998-99 Hans Berglund
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                */
-/* ------------------------------------------------------------------------- */
-
-/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
-   Frodo Looijaard <frodol@dds.nl> */
-
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/wait.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-
-#include <linux/i2c.h>
-#include <linux/i2c-algo-ite.h>
-#include <linux/i2c-adap-ite.h>
-#include "../i2c-ite.h"
-
-#define DEFAULT_BASE  0x14014030
-#define ITE_IIC_IO_SIZE 0x40
-#define DEFAULT_IRQ   0
-#define DEFAULT_CLOCK 0x1b0e    /* default 16MHz/(27+14) = 400KHz */
-#define DEFAULT_OWN   0x55
-
-static int base;
-static int irq;
-static int clock;
-static int own;
-
-static struct iic_ite gpi;
-static wait_queue_head_t iic_wait;
-static int iic_pending;
-static spinlock_t lock;
-
-/* ----- local functions ---------------------------------------------- */
-
-static void iic_ite_setiic(void *data, int ctl, short val)
-{
-        unsigned long j = jiffies + 10;
-
-        pr_debug(" Write 0x%02x to 0x%x\n",(unsigned short)val, ctl&0xff);
-#ifdef DEBUG
-        while (time_before(jiffies, j))
-                schedule();
-#endif
-        outw(val,ctl);
-}
-
-static short iic_ite_getiic(void *data, int ctl)
-{
-        short val;
-
-        val = inw(ctl);
-        pr_debug("Read 0x%02x from 0x%x\n",(unsigned short)val, ctl&0xff);
-        return (val);
-}
-
-/* Return our slave address.  This is the address
- * put on the I2C bus when another master on the bus wants to address us
- * as a slave
- */
-static int iic_ite_getown(void *data)
-{
-        return (gpi.iic_own);
-}
-
-
-static int iic_ite_getclock(void *data)
-{
-        return (gpi.iic_clock);
-}
-
-
-/* Put this process to sleep.  We will wake up when the
- * IIC controller interrupts.
- */
-static void iic_ite_waitforpin(void) {
-   DEFINE_WAIT(wait);
-   int timeout = 2;
-   unsigned long flags;
-
-   /* If interrupts are enabled (which they are), then put the process to
-    * sleep.  This process will be awakened by two events -- either the
-    * the IIC peripheral interrupts or the timeout expires. 
-    * If interrupts are not enabled then delay for a reasonable amount 
-    * of time and return.
-    */
-   if (gpi.iic_irq > 0) {
-        spin_lock_irqsave(&lock, flags);
-        if (iic_pending == 0) {
-                spin_unlock_irqrestore(&lock, flags);
-                prepare_to_wait(&iic_wait, &wait, TASK_INTERRUPTIBLE);
-                if (schedule_timeout(timeout*HZ)) {
-                        spin_lock_irqsave(&lock, flags);
-                        if (iic_pending == 1) {
-                                iic_pending = 0;
-                        }
-                        spin_unlock_irqrestore(&lock, flags);
-                }
-                finish_wait(&iic_wait, &wait);
-        } else {
-                iic_pending = 0;
-                spin_unlock_irqrestore(&lock, flags);
-        }
-   } else {
-      udelay(100);
-   }
-}
-
-
-static irqreturn_t iic_ite_handler(int this_irq, void *dev_id)
-{
-        spin_lock(&lock);
-        iic_pending = 1;
-        spin_unlock(&lock);
-
-        wake_up_interruptible(&iic_wait);
-
-        return IRQ_HANDLED;
-}
-
-
-/* Lock the region of memory where I/O registers exist.  Request our
- * interrupt line and register its associated handler.
- */
-static int iic_hw_resrc_init(void)
-{
-        if (!request_region(gpi.iic_base, ITE_IIC_IO_SIZE, "i2c"))
-                return -ENODEV;
-  
-        if (gpi.iic_irq <= 0)
-                return 0;
-
-        if (request_irq(gpi.iic_irq, iic_ite_handler, 0, "ITE IIC", 0) < 0)
-                gpi.iic_irq = 0;
-        else
-                enable_irq(gpi.iic_irq);
-
-        return 0;
-}
-
-
-static void iic_ite_release(void)
-{
-        if (gpi.iic_irq > 0) {
-                disable_irq(gpi.iic_irq);
-                free_irq(gpi.iic_irq, 0);
-        }
-        release_region(gpi.iic_base , 2);
-}
-
-/* ------------------------------------------------------------------------
- * Encapsulate the above functions in the correct operations structure.
- * This is only done when more than one hardware adapter is supported.
- */
-static struct i2c_algo_iic_data iic_ite_data = {
-        NULL,
-        iic_ite_setiic,
-        iic_ite_getiic,
-        iic_ite_getown,
-        iic_ite_getclock,
-        iic_ite_waitforpin,
-        80, 80, 100,            /*      waits, timeout */
-};
-
-static struct i2c_adapter iic_ite_ops = {
-        .owner          = THIS_MODULE,
-        .id             = I2C_HW_I_IIC,
-        .algo_data      = &iic_ite_data,
-        .name           = "ITE IIC adapter",
-};
-
-/* Called when the module is loaded.  This function starts the
- * cascade of calls up through the hierarchy of i2c modules (i.e. up to the
- *  algorithm layer and into to the core layer)
- */
-static int __init iic_ite_init(void) 
-{
-
-        struct iic_ite *piic = &gpi;
-
-        printk(KERN_INFO "Initialize ITE IIC adapter module\n");
-        if (base == 0)
-                piic->iic_base = DEFAULT_BASE;
-        else
-                piic->iic_base = base;
-
-        if (irq == 0)
-                piic->iic_irq = DEFAULT_IRQ;
-        else
-                piic->iic_irq = irq;
-
-        if (clock == 0)
-                piic->iic_clock = DEFAULT_CLOCK;
-        else
-                piic->iic_clock = clock;
-
-        if (own == 0)
-                piic->iic_own = DEFAULT_OWN;
-        else
-                piic->iic_own = own;
-
-        iic_ite_data.data = (void *)piic;
-        init_waitqueue_head(&iic_wait);
-        spin_lock_init(&lock);
-        if (iic_hw_resrc_init() == 0) {
-                if (i2c_iic_add_bus(&iic_ite_ops) < 0)
-                        return -ENODEV;
-        } else {
-                return -ENODEV;
-        }
-        printk(KERN_INFO " found device at %#x irq %d.\n", 
-                piic->iic_base, piic->iic_irq);
-        return 0;
-}
-
-
-static void iic_ite_exit(void)
-{
-        i2c_iic_del_bus(&iic_ite_ops);
-        iic_ite_release();
-}
-
-/* If modules is NOT defined when this file is compiled, then the MODULE_*
- * macros will resolve to nothing
- */
-MODULE_AUTHOR("MontaVista Software <www.mvista.com>");
-MODULE_DESCRIPTION("I2C-Bus adapter routines for ITE IIC bus adapter");
-MODULE_LICENSE("GPL");
-
-module_param(base, int, 0);
-module_param(irq, int, 0);
-module_param(clock, int, 0);
-module_param(own, int, 0);
-
-
-/* Called when module is loaded or when kernel is initialized.
- * If MODULES is defined when this file is compiled, then this function will
- * resolve to init_module (the function called when insmod is invoked for a
- * module).  Otherwise, this function is called early in the boot, when the
- * kernel is intialized.  Check out /include/init.h to see how this works.
- */
-module_init(iic_ite_init);
-
-/* Resolves to module_cleanup when MODULES is defined. */
-module_exit(iic_ite_exit); 
diff --git a/drivers/i2c/busses/i2c-ixp2000.c b/drivers/i2c/busses/i2c-ixp2000.c
index dd3f4cd3aa68..efa3ecc5522a 100644
--- a/drivers/i2c/busses/i2c-ixp2000.c
+++ b/drivers/i2c/busses/i2c-ixp2000.c
@@ -90,7 +90,7 @@ static int ixp2000_i2c_remove(struct platform_device *plat_dev)
 
         platform_set_drvdata(plat_dev, NULL);
 
-        i2c_bit_del_bus(&drv_data->adapter);
+        i2c_del_adapter(&drv_data->adapter);
 
         kfree(drv_data);
 
diff --git a/drivers/i2c/busses/i2c-ixp4xx.c b/drivers/i2c/busses/i2c-ixp4xx.c
index 68fe863f9d54..08e89b83984a 100644
--- a/drivers/i2c/busses/i2c-ixp4xx.c
+++ b/drivers/i2c/busses/i2c-ixp4xx.c
@@ -91,7 +91,7 @@ static int ixp4xx_i2c_remove(struct platform_device *plat_dev)
 
         platform_set_drvdata(plat_dev, NULL);
 
-        i2c_bit_del_bus(&drv_data->adapter);
+        i2c_del_adapter(&drv_data->adapter);
 
         kfree(drv_data);
 
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index e0292e414ab2..ad37c10e7fec 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -35,7 +35,7 @@
     nForce4 MCP55               0368
 
     This driver supports the 2 SMBuses that are included in the MCP of the
-    nForce2/3/4 chipsets.
+    nForce2/3/4/5xx chipsets.
 */
 
 /* Note: we assume there can only be one nForce2, with two SMBus interfaces */
@@ -52,8 +52,8 @@
 #include <asm/io.h>
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR ("Hans-Frieder Vogt <hfvogt@arcor.de>");
-MODULE_DESCRIPTION("nForce2 SMBus driver");
+MODULE_AUTHOR ("Hans-Frieder Vogt <hfvogt@gmx.net>");
+MODULE_DESCRIPTION("nForce2/3/4/5xx SMBus driver");
 
 
 struct nforce2_smbus {
@@ -80,9 +80,6 @@ struct nforce2_smbus {
 #define NVIDIA_SMB_ADDR         (smbus->base + 0x02)    /* address */
 #define NVIDIA_SMB_CMD          (smbus->base + 0x03)    /* command */
 #define NVIDIA_SMB_DATA         (smbus->base + 0x04)    /* 32 data registers */
-#define NVIDIA_SMB_BCNT         (smbus->base + 0x24)    /* number of data bytes */
-#define NVIDIA_SMB_ALRM_A       (smbus->base + 0x25)    /* alarm address */
-#define NVIDIA_SMB_ALRM_D       (smbus->base + 0x26)    /* 2 bytes alarm data */
 
 #define NVIDIA_SMB_STS_DONE     0x80
 #define NVIDIA_SMB_STS_ALRM     0x40
@@ -95,40 +92,17 @@ struct nforce2_smbus {
 #define NVIDIA_SMB_PRTCL_BYTE                   0x04
 #define NVIDIA_SMB_PRTCL_BYTE_DATA              0x06
 #define NVIDIA_SMB_PRTCL_WORD_DATA              0x08
-#define NVIDIA_SMB_PRTCL_BLOCK_DATA             0x0a
-#define NVIDIA_SMB_PRTCL_PROC_CALL              0x0c
-#define NVIDIA_SMB_PRTCL_BLOCK_PROC_CALL        0x0d
-#define NVIDIA_SMB_PRTCL_I2C_BLOCK_DATA         0x4a
 #define NVIDIA_SMB_PRTCL_PEC                    0x80
 
 static struct pci_driver nforce2_driver;
 
-static s32 nforce2_access(struct i2c_adapter *adap, u16 addr,
-                       unsigned short flags, char read_write,
-                       u8 command, int size, union i2c_smbus_data *data);
-static u32 nforce2_func(struct i2c_adapter *adapter);
-
-
-static const struct i2c_algorithm smbus_algorithm = {
-        .smbus_xfer = nforce2_access,
-        .functionality = nforce2_func,
-};
-
-static struct i2c_adapter nforce2_adapter = {
-        .owner          = THIS_MODULE,
-        .class          = I2C_CLASS_HWMON,
-        .algo           = &smbus_algorithm,
-};
-
-/* Return -1 on error. See smbus.h for more information */
+/* Return -1 on error */
 static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
                 unsigned short flags, char read_write,
                 u8 command, int size, union i2c_smbus_data * data)
 {
         struct nforce2_smbus *smbus = adap->algo_data;
         unsigned char protocol, pec, temp;
-        unsigned char len = 0; /* to keep the compiler quiet */
-        int i;
 
         protocol = (read_write == I2C_SMBUS_READ) ? NVIDIA_SMB_PRTCL_READ :
                 NVIDIA_SMB_PRTCL_WRITE;
@@ -163,35 +137,6 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
                         protocol |= NVIDIA_SMB_PRTCL_WORD_DATA | pec;
                         break;
 
-                case I2C_SMBUS_BLOCK_DATA:
-                        outb_p(command, NVIDIA_SMB_CMD);
-                        if (read_write == I2C_SMBUS_WRITE) {
-                                len = min_t(u8, data->block[0], 32);
-                                outb_p(len, NVIDIA_SMB_BCNT);
-                                for (i = 0; i < len; i++)
-                                        outb_p(data->block[i + 1], NVIDIA_SMB_DATA+i);
-                        }
-                        protocol |= NVIDIA_SMB_PRTCL_BLOCK_DATA | pec;
-                        break;
-
-                case I2C_SMBUS_I2C_BLOCK_DATA:
-                        len = min_t(u8, data->block[0], 32);
-                        outb_p(command, NVIDIA_SMB_CMD);
-                        outb_p(len, NVIDIA_SMB_BCNT);
-                        if (read_write == I2C_SMBUS_WRITE)
-                                for (i = 0; i < len; i++)
-                                        outb_p(data->block[i + 1], NVIDIA_SMB_DATA+i);
-                        protocol |= NVIDIA_SMB_PRTCL_I2C_BLOCK_DATA;
-                        break;
-
-                case I2C_SMBUS_PROC_CALL:
-                        dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-                        return -1;
-
-                case I2C_SMBUS_BLOCK_PROC_CALL:
-                        dev_err(&adap->dev, "I2C_SMBUS_BLOCK_PROC_CALL not supported!\n");
-                        return -1;
-
                 default:
                         dev_err(&adap->dev, "Unsupported transaction %d\n", size);
                         return -1;
@@ -227,19 +172,8 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
                         break;
 
                 case I2C_SMBUS_WORD_DATA:
-                /* case I2C_SMBUS_PROC_CALL: not supported */
                         data->word = inb_p(NVIDIA_SMB_DATA) | (inb_p(NVIDIA_SMB_DATA+1) << 8);
                         break;
-
-                case I2C_SMBUS_BLOCK_DATA:
-                /* case I2C_SMBUS_BLOCK_PROC_CALL: not supported */
-                        len = inb_p(NVIDIA_SMB_BCNT);
-                        len = min_t(u8, len, 32);
-                case I2C_SMBUS_I2C_BLOCK_DATA:
-                        for (i = 0; i < len; i++)
-                                data->block[i+1] = inb_p(NVIDIA_SMB_DATA + i);
-                        data->block[0] = len;
-                        break;
         }
 
         return 0;
@@ -250,10 +184,14 @@ static u32 nforce2_func(struct i2c_adapter *adapter)
 {
         /* other functionality might be possible, but is not tested */
         return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
-            I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA /* |
-            I2C_FUNC_SMBUS_BLOCK_DATA */;
+            I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA;
 }
 
+static struct i2c_algorithm smbus_algorithm = {
+        .smbus_xfer     = nforce2_access,
+        .functionality  = nforce2_func,
+};
+
 
 static struct pci_device_id nforce2_ids[] = {
         { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS) },
@@ -267,7 +205,6 @@ static struct pci_device_id nforce2_ids[] = {
         { 0 }
 };
 
-
 MODULE_DEVICE_TABLE (pci, nforce2_ids);
 
 
@@ -291,7 +228,7 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
                 }
 
                 smbus->base = iobase & PCI_BASE_ADDRESS_IO_MASK;
-                smbus->size = 8;
+                smbus->size = 64;
         }
         smbus->dev = dev;
 
@@ -300,7 +237,9 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
                         smbus->base, smbus->base+smbus->size-1, name);
                 return -1;
         }
-        smbus->adapter = nforce2_adapter;
+        smbus->adapter.owner = THIS_MODULE;
+        smbus->adapter.class = I2C_CLASS_HWMON;
+        smbus->adapter.algo = &smbus_algorithm;
         smbus->adapter.algo_data = smbus;
         smbus->adapter.dev.parent = &dev->dev;
         snprintf(smbus->adapter.name, I2C_NAME_SIZE,
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index dec04da0455c..bcd8367cede1 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -231,8 +231,8 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
                  * 13           2               1
                  * 19.2         2               1
                  */
-                if (fclk_rate > 16000000)
-                        psc = (fclk_rate + 8000000) / 12000000;
+                if (fclk_rate > 12000000)
+                        psc = fclk_rate / 12000000;
         }
 
         /* Setup clock prescaler to obtain approx 12MHz I2C module clock: */
diff --git a/drivers/i2c/busses/i2c-parport-light.c b/drivers/i2c/busses/i2c-parport-light.c
index 5eb2bd294fd9..4bc42810b9aa 100644
--- a/drivers/i2c/busses/i2c-parport-light.c
+++ b/drivers/i2c/busses/i2c-parport-light.c
@@ -163,7 +163,7 @@ static void __exit i2c_parport_exit(void)
         if (adapter_parm[type].init.val)
                 line_set(0, &adapter_parm[type].init);
 
-        i2c_bit_del_bus(&parport_adapter);
+        i2c_del_adapter(&parport_adapter);
         release_region(base, 3);
 }
 
diff --git a/drivers/i2c/busses/i2c-parport.c b/drivers/i2c/busses/i2c-parport.c
index 48a829431c7b..66696a40c7b5 100644
--- a/drivers/i2c/busses/i2c-parport.c
+++ b/drivers/i2c/busses/i2c-parport.c
@@ -218,7 +218,7 @@ static void i2c_parport_detach (struct parport *port)
                         if (adapter_parm[type].init.val)
                                 line_set(port, 0, &adapter_parm[type].init);
                                 
-                        i2c_bit_del_bus(&adapter->adapter);
+                        i2c_del_adapter(&adapter->adapter);
                         parport_unregister_device(adapter->pdev);
                         if (prev)
                                 prev->next = adapter->next;
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index 407840b6a260..cc6536a19eca 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -156,7 +156,7 @@ static int __init pca_isa_init(void)
 
 static void pca_isa_exit(void)
 {
-        i2c_pca_del_bus(&pca_isa_ops);
+        i2c_del_adapter(&pca_isa_ops);
 
         if (irq > 0) {
                 disable_irq(irq);
diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
new file mode 100644
index 000000000000..de0bca77e926
--- /dev/null
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -0,0 +1,708 @@
+/*
+ * Provides I2C support for Philips PNX010x/PNX4008 boards.
+ *
+ * Authors: Dennis Kovalev <dkovalev@ru.mvista.com>
+ *          Vitaly Wool <vwool@ru.mvista.com>
+ *
+ * 2004-2006 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/timer.h>
+#include <linux/completion.h>
+#include <linux/platform_device.h>
+#include <linux/i2c-pnx.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#define I2C_PNX_TIMEOUT         10 /* msec */
+#define I2C_PNX_SPEED_KHZ       100
+#define I2C_PNX_REGION_SIZE     0x100
+#define PNX_DEFAULT_FREQ        13 /* MHz */
+
+static inline int wait_timeout(long timeout, struct i2c_pnx_algo_data *data)
+{
+        while (timeout > 0 &&
+                        (ioread32(I2C_REG_STS(data)) & mstatus_active)) {
+                mdelay(1);
+                timeout--;
+        }
+        return (timeout <= 0);
+}
+
+static inline int wait_reset(long timeout, struct i2c_pnx_algo_data *data)
+{
+        while (timeout > 0 &&
+                        (ioread32(I2C_REG_CTL(data)) & mcntrl_reset)) {
+                mdelay(1);
+                timeout--;
+        }
+        return (timeout <= 0);
+}
+
+static inline void i2c_pnx_arm_timer(struct i2c_adapter *adap)
+{
+        struct i2c_pnx_algo_data *data = adap->algo_data;
+        struct timer_list *timer = &data->mif.timer;
+        int expires = I2C_PNX_TIMEOUT / (1000 / HZ);
+
+        del_timer_sync(timer);
+
+        dev_dbg(&adap->dev, "Timer armed at %lu plus %u jiffies.\n",
+                jiffies, expires);
+
+        timer->expires = jiffies + expires;
+        timer->data = (unsigned long)adap;
+
+        add_timer(timer);
+}
+
+/**
+ * i2c_pnx_start - start a device
+ * @slave_addr:         slave address
+ * @adap:               pointer to adapter structure
+ *
+ * Generate a START signal in the desired mode.
+ */
+static int i2c_pnx_start(unsigned char slave_addr, struct i2c_adapter *adap)
+{
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+
+        dev_dbg(&adap->dev, "%s(): addr 0x%x mode %d\n", __FUNCTION__,
+                slave_addr, alg_data->mif.mode);
+
+        /* Check for 7 bit slave addresses only */
+        if (slave_addr & ~0x7f) {
+                dev_err(&adap->dev, "%s: Invalid slave address %x. "
+                       "Only 7-bit addresses are supported\n",
+                       adap->name, slave_addr);
+                return -EINVAL;
+        }
+
+        /* First, make sure bus is idle */
+        if (wait_timeout(I2C_PNX_TIMEOUT, alg_data)) {
+                /* Somebody else is monopolizing the bus */
+                dev_err(&adap->dev, "%s: Bus busy. Slave addr = %02x, "
+                       "cntrl = %x, stat = %x\n",
+                       adap->name, slave_addr,
+                       ioread32(I2C_REG_CTL(alg_data)),
+                       ioread32(I2C_REG_STS(alg_data)));
+                return -EBUSY;
+        } else if (ioread32(I2C_REG_STS(alg_data)) & mstatus_afi) {
+                /* Sorry, we lost the bus */
+                dev_err(&adap->dev, "%s: Arbitration failure. "
+                       "Slave addr = %02x\n", adap->name, slave_addr);
+                return -EIO;
+        }
+
+        /*
+         * OK, I2C is enabled and we have the bus.
+         * Clear the current TDI and AFI status flags.
+         */
+        iowrite32(ioread32(I2C_REG_STS(alg_data)) | mstatus_tdi | mstatus_afi,
+                  I2C_REG_STS(alg_data));
+
+        dev_dbg(&adap->dev, "%s(): sending %#x\n", __FUNCTION__,
+                (slave_addr << 1) | start_bit | alg_data->mif.mode);
+
+        /* Write the slave address, START bit and R/W bit */
+        iowrite32((slave_addr << 1) | start_bit | alg_data->mif.mode,
+                  I2C_REG_TX(alg_data));
+
+        dev_dbg(&adap->dev, "%s(): exit\n", __FUNCTION__);
+
+        return 0;
+}
+
+/**
+ * i2c_pnx_stop - stop a device
+ * @adap:               pointer to I2C adapter structure
+ *
+ * Generate a STOP signal to terminate the master transaction.
+ */
+static void i2c_pnx_stop(struct i2c_adapter *adap)
+{
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+        /* Only 1 msec max timeout due to interrupt context */
+        long timeout = 1000;
+
+        dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
+                __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+
+        /* Write a STOP bit to TX FIFO */
+        iowrite32(0xff | stop_bit, I2C_REG_TX(alg_data));
+
+        /* Wait until the STOP is seen. */
+        while (timeout > 0 &&
+               (ioread32(I2C_REG_STS(alg_data)) & mstatus_active)) {
+                /* may be called from interrupt context */
+                udelay(1);
+                timeout--;
+        }
+
+        dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
+                __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+}
+
+/**
+ * i2c_pnx_master_xmit - transmit data to slave
+ * @adap:               pointer to I2C adapter structure
+ *
+ * Sends one byte of data to the slave
+ */
+static int i2c_pnx_master_xmit(struct i2c_adapter *adap)
+{
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+        u32 val;
+
+        dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
+                __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+
+        if (alg_data->mif.len > 0) {
+                /* We still have something to talk about... */
+                val = *alg_data->mif.buf++;
+
+                if (alg_data->mif.len == 1) {
+                        val |= stop_bit;
+                        if (!alg_data->last)
+                                val |= start_bit;
+                }
+
+                alg_data->mif.len--;
+                iowrite32(val, I2C_REG_TX(alg_data));
+
+                dev_dbg(&adap->dev, "%s(): xmit %#x [%d]\n", __FUNCTION__,
+                        val, alg_data->mif.len + 1);
+
+                if (alg_data->mif.len == 0) {
+                        if (alg_data->last) {
+                                /* Wait until the STOP is seen. */
+                                if (wait_timeout(I2C_PNX_TIMEOUT, alg_data))
+                                        dev_err(&adap->dev, "The bus is still "
+                                                "active after timeout\n");
+                        }
+                        /* Disable master interrupts */
+                        iowrite32(ioread32(I2C_REG_CTL(alg_data)) &
+                                ~(mcntrl_afie | mcntrl_naie | mcntrl_drmie),
+                                  I2C_REG_CTL(alg_data));
+
+                        del_timer_sync(&alg_data->mif.timer);
+
+                        dev_dbg(&adap->dev, "%s(): Waking up xfer routine.\n",
+                                __FUNCTION__);
+
+                        complete(&alg_data->mif.complete);
+                }
+        } else if (alg_data->mif.len == 0) {
+                /* zero-sized transfer */
+                i2c_pnx_stop(adap);
+
+                /* Disable master interrupts. */
+                iowrite32(ioread32(I2C_REG_CTL(alg_data)) &
+                        ~(mcntrl_afie | mcntrl_naie | mcntrl_drmie),
+                          I2C_REG_CTL(alg_data));
+
+                /* Stop timer. */
+                del_timer_sync(&alg_data->mif.timer);
+                dev_dbg(&adap->dev, "%s(): Waking up xfer routine after "
+                        "zero-xfer.\n", __FUNCTION__);
+
+                complete(&alg_data->mif.complete);
+        }
+
+        dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
+                __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+
+        return 0;
+}
+
+/**
+ * i2c_pnx_master_rcv - receive data from slave
+ * @adap:               pointer to I2C adapter structure
+ *
+ * Reads one byte data from the slave
+ */
+static int i2c_pnx_master_rcv(struct i2c_adapter *adap)
+{
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+        unsigned int val = 0;
+        u32 ctl = 0;
+
+        dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
+                __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+
+        /* Check, whether there is already data,
+         * or we didn't 'ask' for it yet.
+         */
+        if (ioread32(I2C_REG_STS(alg_data)) & mstatus_rfe) {
+                dev_dbg(&adap->dev, "%s(): Write dummy data to fill "
+                        "Rx-fifo...\n", __FUNCTION__);
+
+                if (alg_data->mif.len == 1) {
+                        /* Last byte, do not acknowledge next rcv. */
+                        val |= stop_bit;
+                        if (!alg_data->last)
+                                val |= start_bit;
+
+                        /*
+                         * Enable interrupt RFDAIE (data in Rx fifo),
+                         * and disable DRMIE (need data for Tx)
+                         */
+                        ctl = ioread32(I2C_REG_CTL(alg_data));
+                        ctl |= mcntrl_rffie | mcntrl_daie;
+                        ctl &= ~mcntrl_drmie;
+                        iowrite32(ctl, I2C_REG_CTL(alg_data));
+                }
+
+                /*
+                 * Now we'll 'ask' for data:
+                 * For each byte we want to receive, we must
+                 * write a (dummy) byte to the Tx-FIFO.
+                 */
+                iowrite32(val, I2C_REG_TX(alg_data));
+
+                return 0;
+        }
+
+        /* Handle data. */
+        if (alg_data->mif.len > 0) {
+                val = ioread32(I2C_REG_RX(alg_data));
+                *alg_data->mif.buf++ = (u8) (val & 0xff);
+                dev_dbg(&adap->dev, "%s(): rcv 0x%x [%d]\n", __FUNCTION__, val,
+                        alg_data->mif.len);
+
+                alg_data->mif.len--;
+                if (alg_data->mif.len == 0) {
+                        if (alg_data->last)
+                                /* Wait until the STOP is seen. */
+                                if (wait_timeout(I2C_PNX_TIMEOUT, alg_data))
+                                        dev_err(&adap->dev, "The bus is still "
+                                                "active after timeout\n");
+
+                        /* Disable master interrupts */
+                        ctl = ioread32(I2C_REG_CTL(alg_data));
+                        ctl &= ~(mcntrl_afie | mcntrl_naie | mcntrl_rffie |
+                                 mcntrl_drmie | mcntrl_daie);
+                        iowrite32(ctl, I2C_REG_CTL(alg_data));
+
+                        /* Kill timer. */
+                        del_timer_sync(&alg_data->mif.timer);
+                        complete(&alg_data->mif.complete);
+                }
+        }
+
+        dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
+                __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+
+        return 0;
+}
+
+static irqreturn_t
+i2c_pnx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+        u32 stat, ctl;
+        struct i2c_adapter *adap = dev_id;
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+
+        dev_dbg(&adap->dev, "%s(): mstat = %x mctrl = %x, mode = %d\n",
+                __FUNCTION__,
+                ioread32(I2C_REG_STS(alg_data)),
+                ioread32(I2C_REG_CTL(alg_data)),
+                alg_data->mif.mode);
+        stat = ioread32(I2C_REG_STS(alg_data));
+
+        /* let's see what kind of event this is */
+        if (stat & mstatus_afi) {
+                /* We lost arbitration in the midst of a transfer */
+                alg_data->mif.ret = -EIO;
+
+                /* Disable master interrupts. */
+                ctl = ioread32(I2C_REG_CTL(alg_data));
+                ctl &= ~(mcntrl_afie | mcntrl_naie | mcntrl_rffie |
+                         mcntrl_drmie);
+                iowrite32(ctl, I2C_REG_CTL(alg_data));
+
+                /* Stop timer, to prevent timeout. */
+                del_timer_sync(&alg_data->mif.timer);
+                complete(&alg_data->mif.complete);
+        } else if (stat & mstatus_nai) {
+                /* Slave did not acknowledge, generate a STOP */
+                dev_dbg(&adap->dev, "%s(): "
+                        "Slave did not acknowledge, generating a STOP.\n",
+                        __FUNCTION__);
+                i2c_pnx_stop(adap);
+
+                /* Disable master interrupts. */
+                ctl = ioread32(I2C_REG_CTL(alg_data));
+                ctl &= ~(mcntrl_afie | mcntrl_naie | mcntrl_rffie |
+                         mcntrl_drmie);
+                iowrite32(ctl, I2C_REG_CTL(alg_data));
+
+                /* Our return value. */
+                alg_data->mif.ret = -EIO;
+
+                /* Stop timer, to prevent timeout. */
+                del_timer_sync(&alg_data->mif.timer);
+                complete(&alg_data->mif.complete);
+        } else {
+                /*
+                 * Two options:
+                 * - Master Tx needs data.
+                 * - There is data in the Rx-fifo
+                 * The latter is only the case if we have requested for data,
+                 * via a dummy write. (See 'i2c_pnx_master_rcv'.)
+                 * We therefore check, as a sanity check, whether that interrupt
+                 * has been enabled.
+                 */
+                if ((stat & mstatus_drmi) || !(stat & mstatus_rfe)) {
+                        if (alg_data->mif.mode == I2C_SMBUS_WRITE) {
+                                i2c_pnx_master_xmit(adap);
+                        } else if (alg_data->mif.mode == I2C_SMBUS_READ) {
+                                i2c_pnx_master_rcv(adap);
+                        }
+                }
+        }
+
+        /* Clear TDI and AFI bits */
+        stat = ioread32(I2C_REG_STS(alg_data));
+        iowrite32(stat | mstatus_tdi | mstatus_afi, I2C_REG_STS(alg_data));
+
+        dev_dbg(&adap->dev, "%s(): exiting, stat = %x ctrl = %x.\n",
+                 __FUNCTION__, ioread32(I2C_REG_STS(alg_data)),
+                 ioread32(I2C_REG_CTL(alg_data)));
+
+        return IRQ_HANDLED;
+}
+
+static void i2c_pnx_timeout(unsigned long data)
+{
+        struct i2c_adapter *adap = (struct i2c_adapter *)data;
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+        u32 ctl;
+
+        dev_err(&adap->dev, "Master timed out. stat = %04x, cntrl = %04x. "
+               "Resetting master...\n",
+               ioread32(I2C_REG_STS(alg_data)),
+               ioread32(I2C_REG_CTL(alg_data)));
+
+        /* Reset master and disable interrupts */
+        ctl = ioread32(I2C_REG_CTL(alg_data));
+        ctl &= ~(mcntrl_afie | mcntrl_naie | mcntrl_rffie | mcntrl_drmie);
+        iowrite32(ctl, I2C_REG_CTL(alg_data));
+
+        ctl |= mcntrl_reset;
+        iowrite32(ctl, I2C_REG_CTL(alg_data));
+        wait_reset(I2C_PNX_TIMEOUT, alg_data);
+        alg_data->mif.ret = -EIO;
+        complete(&alg_data->mif.complete);
+}
+
+static inline void bus_reset_if_active(struct i2c_adapter *adap)
+{
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+        u32 stat;
+
+        if ((stat = ioread32(I2C_REG_STS(alg_data))) & mstatus_active) {
+                dev_err(&adap->dev,
+                        "%s: Bus is still active after xfer. Reset it...\n",
+                       adap->name);
+                iowrite32(ioread32(I2C_REG_CTL(alg_data)) | mcntrl_reset,
+                          I2C_REG_CTL(alg_data));
+                wait_reset(I2C_PNX_TIMEOUT, alg_data);
+        } else if (!(stat & mstatus_rfe) || !(stat & mstatus_tfe)) {
+                /* If there is data in the fifo's after transfer,
+                 * flush fifo's by reset.
+                 */
+                iowrite32(ioread32(I2C_REG_CTL(alg_data)) | mcntrl_reset,
+                          I2C_REG_CTL(alg_data));
+                wait_reset(I2C_PNX_TIMEOUT, alg_data);
+        } else if (stat & mstatus_nai) {
+                iowrite32(ioread32(I2C_REG_CTL(alg_data)) | mcntrl_reset,
+                          I2C_REG_CTL(alg_data));
+                wait_reset(I2C_PNX_TIMEOUT, alg_data);
+        }
+}
+
+/**
+ * i2c_pnx_xfer - generic transfer entry point
+ * @adap:               pointer to I2C adapter structure
+ * @msgs:               array of messages
+ * @num:                number of messages
+ *
+ * Initiates the transfer
+ */
+static int
+i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
+{
+        struct i2c_msg *pmsg;
+        int rc = 0, completed = 0, i;
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+        u32 stat = ioread32(I2C_REG_STS(alg_data));
+
+        dev_dbg(&adap->dev, "%s(): entering: %d messages, stat = %04x.\n",
+                __FUNCTION__, num, ioread32(I2C_REG_STS(alg_data)));
+
+        bus_reset_if_active(adap);
+
+        /* Process transactions in a loop. */
+        for (i = 0; rc >= 0 && i < num; i++) {
+                u8 addr;
+
+                pmsg = &msgs[i];
+                addr = pmsg->addr;
+
+                if (pmsg->flags & I2C_M_TEN) {
+                        dev_err(&adap->dev,
+                                "%s: 10 bits addr not supported!\n",
+                                adap->name);
+                        rc = -EINVAL;
+                        break;
+                }
+
+                alg_data->mif.buf = pmsg->buf;
+                alg_data->mif.len = pmsg->len;
+                alg_data->mif.mode = (pmsg->flags & I2C_M_RD) ?
+                        I2C_SMBUS_READ : I2C_SMBUS_WRITE;
+                alg_data->mif.ret = 0;
+                alg_data->last = (i == num - 1);
+
+                dev_dbg(&adap->dev, "%s(): mode %d, %d bytes\n", __FUNCTION__,
+                        alg_data->mif.mode,
+                        alg_data->mif.len);
+
+                i2c_pnx_arm_timer(adap);
+
+                /* initialize the completion var */
+                init_completion(&alg_data->mif.complete);
+
+                /* Enable master interrupt */
+                iowrite32(ioread32(I2C_REG_CTL(alg_data)) | mcntrl_afie |
+                                mcntrl_naie | mcntrl_drmie,
+                          I2C_REG_CTL(alg_data));
+
+                /* Put start-code and slave-address on the bus. */
+                rc = i2c_pnx_start(addr, adap);
+                if (rc < 0)
+                        break;
+
+                /* Wait for completion */
+                wait_for_completion(&alg_data->mif.complete);
+
+                if (!(rc = alg_data->mif.ret))
+                        completed++;
+                dev_dbg(&adap->dev, "%s(): Complete, return code = %d.\n",
+                        __FUNCTION__, rc);
+
+                /* Clear TDI and AFI bits in case they are set. */
+                if ((stat = ioread32(I2C_REG_STS(alg_data))) & mstatus_tdi) {
+                        dev_dbg(&adap->dev,
+                                "%s: TDI still set... clearing now.\n",
+                               adap->name);
+                        iowrite32(stat, I2C_REG_STS(alg_data));
+                }
+                if ((stat = ioread32(I2C_REG_STS(alg_data))) & mstatus_afi) {
+                        dev_dbg(&adap->dev,
+                                "%s: AFI still set... clearing now.\n",
+                               adap->name);
+                        iowrite32(stat, I2C_REG_STS(alg_data));
+                }
+        }
+
+        bus_reset_if_active(adap);
+
+        /* Cleanup to be sure... */
+        alg_data->mif.buf = NULL;
+        alg_data->mif.len = 0;
+
+        dev_dbg(&adap->dev, "%s(): exiting, stat = %x\n",
+                __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+
+        if (completed != num)
+                return ((rc < 0) ? rc : -EREMOTEIO);
+
+        return num;
+}
+
+static u32 i2c_pnx_func(struct i2c_adapter *adapter)
+{
+        return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static struct i2c_algorithm pnx_algorithm = {
+        .master_xfer = i2c_pnx_xfer,
+        .functionality = i2c_pnx_func,
+};
+
+static int i2c_pnx_controller_suspend(struct platform_device *pdev,
+                                      pm_message_t state)
+{
+        struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
+        return i2c_pnx->suspend(pdev, state);
+}
+
+static int i2c_pnx_controller_resume(struct platform_device *pdev)
+{
+        struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
+        return i2c_pnx->resume(pdev);
+}
+
+static int __devinit i2c_pnx_probe(struct platform_device *pdev)
+{
+        unsigned long tmp;
+        int ret = 0;
+        struct i2c_pnx_algo_data *alg_data;
+        int freq_mhz;
+        struct i2c_pnx_data *i2c_pnx = pdev->dev.platform_data;
+
+        if (!i2c_pnx || !i2c_pnx->adapter) {
+                dev_err(&pdev->dev, "%s: no platform data supplied\n",
+                       __FUNCTION__);
+                ret = -EINVAL;
+                goto out;
+        }
+
+        platform_set_drvdata(pdev, i2c_pnx);
+
+        if (i2c_pnx->calculate_input_freq)
+                freq_mhz = i2c_pnx->calculate_input_freq(pdev);
+        else {
+                freq_mhz = PNX_DEFAULT_FREQ;
+                dev_info(&pdev->dev, "Setting bus frequency to default value: "
+                       "%d MHz", freq_mhz);
+        }
+
+        i2c_pnx->adapter->algo = &pnx_algorithm;
+
+        alg_data = i2c_pnx->adapter->algo_data;
+        init_timer(&alg_data->mif.timer);
+        alg_data->mif.timer.function = i2c_pnx_timeout;
+        alg_data->mif.timer.data = (unsigned long)i2c_pnx->adapter;
+
+        /* Register I/O resource */
+        if (!request_region(alg_data->base, I2C_PNX_REGION_SIZE, pdev->name)) {
+                dev_err(&pdev->dev,
+                       "I/O region 0x%08x for I2C already in use.\n",
+                       alg_data->base);
+                ret = -ENODEV;
+                goto out_drvdata;
+        }
+
+        if (!(alg_data->ioaddr =
+                        (u32)ioremap(alg_data->base, I2C_PNX_REGION_SIZE))) {
+                dev_err(&pdev->dev, "Couldn't ioremap I2C I/O region\n");
+                ret = -ENOMEM;
+                goto out_release;
+        }
+
+        i2c_pnx->set_clock_run(pdev);
+
+        /*
+         * Clock Divisor High This value is the number of system clocks
+         * the serial clock (SCL) will be high.
+         * For example, if the system clock period is 50 ns and the maximum
+         * desired serial period is 10000 ns (100 kHz), then CLKHI would be
+         * set to 0.5*(f_sys/f_i2c)-2=0.5*(20e6/100e3)-2=98. The actual value
+         * programmed into CLKHI will vary from this slightly due to
+         * variations in the output pad's rise and fall times as well as
+         * the deglitching filter length.
+         */
+
+        tmp = ((freq_mhz * 1000) / I2C_PNX_SPEED_KHZ) / 2 - 2;
+        iowrite32(tmp, I2C_REG_CKH(alg_data));
+        iowrite32(tmp, I2C_REG_CKL(alg_data));
+
+        iowrite32(mcntrl_reset, I2C_REG_CTL(alg_data));
+        if (wait_reset(I2C_PNX_TIMEOUT, alg_data)) {
+                ret = -ENODEV;
+                goto out_unmap;
+        }
+        init_completion(&alg_data->mif.complete);
+
+        ret = request_irq(alg_data->irq, i2c_pnx_interrupt,
+                        0, pdev->name, i2c_pnx->adapter);
+        if (ret)
+                goto out_clock;
+
+        /* Register this adapter with the I2C subsystem */
+        i2c_pnx->adapter->dev.parent = &pdev->dev;
+        ret = i2c_add_adapter(i2c_pnx->adapter);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "I2C: Failed to add bus\n");
+                goto out_irq;
+        }
+
+        dev_dbg(&pdev->dev, "%s: Master at %#8x, irq %d.\n",
+               i2c_pnx->adapter->name, alg_data->base, alg_data->irq);
+
+        return 0;
+
+out_irq:
+        free_irq(alg_data->irq, alg_data);
+out_clock:
+        i2c_pnx->set_clock_stop(pdev);
+out_unmap:
+        iounmap((void *)alg_data->ioaddr);
+out_release:
+        release_region(alg_data->base, I2C_PNX_REGION_SIZE);
+out_drvdata:
+        platform_set_drvdata(pdev, NULL);
+out:
+        return ret;
+}
+
+static int __devexit i2c_pnx_remove(struct platform_device *pdev)
+{
+        struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
+        struct i2c_adapter *adap = i2c_pnx->adapter;
+        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+
+        free_irq(alg_data->irq, alg_data);
+        i2c_del_adapter(adap);
+        i2c_pnx->set_clock_stop(pdev);
+        iounmap((void *)alg_data->ioaddr);
+        release_region(alg_data->base, I2C_PNX_REGION_SIZE);
+        platform_set_drvdata(pdev, NULL);
+
+        return 0;
+}
+
+static struct platform_driver i2c_pnx_driver = {
+        .driver = {
+                .name = "pnx-i2c",
+                .owner = THIS_MODULE,
+        },
+        .probe = i2c_pnx_probe,
+        .remove = __devexit_p(i2c_pnx_remove),
+        .suspend = i2c_pnx_controller_suspend,
+        .resume = i2c_pnx_controller_resume,
+};
+
+static int __init i2c_adap_pnx_init(void)
+{
+        return platform_driver_register(&i2c_pnx_driver);
+}
+
+static void __exit i2c_adap_pnx_exit(void)
+{
+        platform_driver_unregister(&i2c_pnx_driver);
+}
+
+MODULE_AUTHOR("Vitaly Wool, Dennis Kovalev <source@mvista.com>");
+MODULE_DESCRIPTION("I2C driver for Philips IP3204-based I2C busses");
+MODULE_LICENSE("GPL");
+
+#ifdef CONFIG_I2C_PNX_EARLY
+/* We need to make sure I2C is initialized before USB */
+subsys_initcall(i2c_adap_pnx_init);
+#else
+mudule_init(i2c_adap_pnx_init);
+#endif
+module_exit(i2c_adap_pnx_exit);
diff --git a/drivers/i2c/busses/i2c-prosavage.c b/drivers/i2c/busses/i2c-prosavage.c
index 7745e21874a8..07c1f1e27df1 100644
--- a/drivers/i2c/busses/i2c-prosavage.c
+++ b/drivers/i2c/busses/i2c-prosavage.c
@@ -212,7 +212,7 @@ static void prosavage_remove(struct pci_dev *dev)
                 if (chip->i2c_bus[i].adap_ok == 0)
                         continue;
 
-                ret = i2c_bit_del_bus(&chip->i2c_bus[i].adap);
+                ret = i2c_del_adapter(&chip->i2c_bus[i].adap);
                 if (ret) {
                         dev_err(&dev->dev, "%s not removed\n",
                                 chip->i2c_bus[i].adap.name);
diff --git a/drivers/i2c/busses/i2c-savage4.c b/drivers/i2c/busses/i2c-savage4.c
index 209f47ea1750..844b4ff90893 100644
--- a/drivers/i2c/busses/i2c-savage4.c
+++ b/drivers/i2c/busses/i2c-savage4.c
@@ -173,7 +173,7 @@ static int __devinit savage4_probe(struct pci_dev *dev, const struct pci_device_
 
 static void __devexit savage4_remove(struct pci_dev *dev)
 {
-        i2c_bit_del_bus(&savage4_i2c_adapter);
+        i2c_del_adapter(&savage4_i2c_adapter);
         iounmap(ioaddr);
 }
 
diff --git a/drivers/i2c/busses/i2c-versatile.c b/drivers/i2c/busses/i2c-versatile.c
new file mode 100644
index 000000000000..081d9578ce10
--- /dev/null
+++ b/drivers/i2c/busses/i2c-versatile.c
@@ -0,0 +1,153 @@
+/*
+ *  i2c-versatile.c
+ *
+ *  Copyright (C) 2006 ARM Ltd.
+ *  written by Russell King, Deep Blue Solutions Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#define I2C_CONTROL     0x00
+#define I2C_CONTROLS    0x00
+#define I2C_CONTROLC    0x04
+#define SCL             (1 << 0)
+#define SDA             (1 << 1)
+
+struct i2c_versatile {
+        struct i2c_adapter       adap;
+        struct i2c_algo_bit_data algo;
+        void __iomem             *base;
+};
+
+static void i2c_versatile_setsda(void *data, int state)
+{
+        struct i2c_versatile *i2c = data;
+
+        writel(SDA, i2c->base + (state ? I2C_CONTROLS : I2C_CONTROLC));
+}
+
+static void i2c_versatile_setscl(void *data, int state)
+{
+        struct i2c_versatile *i2c = data;
+
+        writel(SCL, i2c->base + (state ? I2C_CONTROLS : I2C_CONTROLC));
+}
+
+static int i2c_versatile_getsda(void *data)
+{
+        struct i2c_versatile *i2c = data;
+        return !!(readl(i2c->base + I2C_CONTROL) & SDA);
+}
+
+static int i2c_versatile_getscl(void *data)
+{
+        struct i2c_versatile *i2c = data;
+        return !!(readl(i2c->base + I2C_CONTROL) & SCL);
+}
+
+static struct i2c_algo_bit_data i2c_versatile_algo = {
+        .setsda = i2c_versatile_setsda,
+        .setscl = i2c_versatile_setscl,
+        .getsda = i2c_versatile_getsda,
+        .getscl = i2c_versatile_getscl,
+        .udelay = 30,
+        .timeout = HZ,
+};
+
+static int i2c_versatile_probe(struct platform_device *dev)
+{
+        struct i2c_versatile *i2c;
+        struct resource *r;
+        int ret;
+
+        r = platform_get_resource(dev, IORESOURCE_MEM, 0);
+        if (!r) {
+                ret = -EINVAL;
+                goto err_out;
+        }
+
+        if (!request_mem_region(r->start, r->end - r->start + 1, "versatile-i2c")) {
+                ret = -EBUSY;
+                goto err_out;
+        }
+
+        i2c = kzalloc(sizeof(struct i2c_versatile), GFP_KERNEL);
+        if (!i2c) {
+                ret = -ENOMEM;
+                goto err_release;
+        }
+
+        i2c->base = ioremap(r->start, r->end - r->start + 1);
+        if (!i2c->base) {
+                ret = -ENOMEM;
+                goto err_free;
+        }
+
+        writel(SCL | SDA, i2c->base + I2C_CONTROLS);
+
+        i2c->adap.owner = THIS_MODULE;
+        strlcpy(i2c->adap.name, "Versatile I2C adapter", sizeof(i2c->adap.name));
+        i2c->adap.algo_data = &i2c->algo;
+        i2c->adap.dev.parent = &dev->dev;
+        i2c->algo = i2c_versatile_algo;
+        i2c->algo.data = i2c;
+
+        ret = i2c_bit_add_bus(&i2c->adap);
+        if (ret >= 0) {
+                platform_set_drvdata(dev, i2c);
+                return 0;
+        }
+
+        iounmap(i2c->base);
+ err_free:
+        kfree(i2c);
+ err_release:
+        release_mem_region(r->start, r->end - r->start + 1);
+ err_out:
+        return ret;
+}
+
+static int i2c_versatile_remove(struct platform_device *dev)
+{
+        struct i2c_versatile *i2c = platform_get_drvdata(dev);
+
+        platform_set_drvdata(dev, NULL);
+
+        i2c_del_adapter(&i2c->adap);
+        return 0;
+}
+
+static struct platform_driver i2c_versatile_driver = {
+        .probe          = i2c_versatile_probe,
+        .remove         = i2c_versatile_remove,
+        .driver         = {
+                .name   = "versatile-i2c",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init i2c_versatile_init(void)
+{
+        return platform_driver_register(&i2c_versatile_driver);
+}
+
+static void __exit i2c_versatile_exit(void)
+{
+        platform_driver_unregister(&i2c_versatile_driver);
+}
+
+module_init(i2c_versatile_init);
+module_exit(i2c_versatile_exit);
+
+MODULE_DESCRIPTION("ARM Versatile I2C bus driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-via.c b/drivers/i2c/busses/i2c-via.c
index 910e200ad500..15d7e00e47e6 100644
--- a/drivers/i2c/busses/i2c-via.c
+++ b/drivers/i2c/busses/i2c-via.c
@@ -151,7 +151,7 @@ static int __devinit vt586b_probe(struct pci_dev *dev, const struct pci_device_i
 
 static void __devexit vt586b_remove(struct pci_dev *dev)
 {
-        i2c_bit_del_bus(&vt586b_adapter);
+        i2c_del_adapter(&vt586b_adapter);
         release_region(I2C_DIR, IOSPACE);
         pm_io_base = 0;
 }
diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c
index 6c8d25183382..b0377b81744b 100644
--- a/drivers/i2c/busses/i2c-voodoo3.c
+++ b/drivers/i2c/busses/i2c-voodoo3.c
@@ -211,14 +211,14 @@ static int __devinit voodoo3_probe(struct pci_dev *dev, const struct pci_device_
                 return retval;
         retval = i2c_bit_add_bus(&voodoo3_ddc_adapter);
         if (retval)
-                i2c_bit_del_bus(&voodoo3_i2c_adapter);
+                i2c_del_adapter(&voodoo3_i2c_adapter);
         return retval;
 }
 
 static void __devexit voodoo3_remove(struct pci_dev *dev)
 {
-        i2c_bit_del_bus(&voodoo3_i2c_adapter);
-        i2c_bit_del_bus(&voodoo3_ddc_adapter);
+        i2c_del_adapter(&voodoo3_i2c_adapter);
+        i2c_del_adapter(&voodoo3_ddc_adapter);
         iounmap(ioaddr);
 }
 
diff --git a/drivers/i2c/busses/scx200_i2c.c b/drivers/i2c/busses/scx200_i2c.c
index 8ddbae4fafe6..6cd96e43aa72 100644
--- a/drivers/i2c/busses/scx200_i2c.c
+++ b/drivers/i2c/busses/scx200_i2c.c
@@ -116,7 +116,7 @@ static int scx200_i2c_init(void)
 
 static void scx200_i2c_cleanup(void)
 {
-        i2c_bit_del_bus(&scx200_i2c_ops);
+        i2c_del_adapter(&scx200_i2c_ops);
 }
 
 module_init(scx200_i2c_init);
diff --git a/drivers/i2c/chips/ds1337.c b/drivers/i2c/chips/ds1337.c
index 93d483b8b770..ec17d6b684a2 100644
--- a/drivers/i2c/chips/ds1337.c
+++ b/drivers/i2c/chips/ds1337.c
@@ -347,13 +347,19 @@ static void ds1337_init_client(struct i2c_client *client)
 
         if ((status & 0x80) || (control & 0x80)) {
                 /* RTC not running */
-                u8 buf[16];
+                u8 buf[1+16];   /* First byte is interpreted as address */
                 struct i2c_msg msg[1];
 
                 dev_dbg(&client->dev, "%s: RTC not running!\n", __FUNCTION__);
 
                 /* Initialize all, including STATUS and CONTROL to zero */
                 memset(buf, 0, sizeof(buf));
+
+                /* Write valid values in the date/time registers */
+                buf[1+DS1337_REG_DAY] = 1;
+                buf[1+DS1337_REG_DATE] = 1;
+                buf[1+DS1337_REG_MONTH] = 1;
+
                 msg[0].addr = client->addr;
                 msg[0].flags = 0;
                 msg[0].len = sizeof(buf);
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 7ca81f42d14b..3e31f1d265c9 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -127,20 +127,17 @@ static ssize_t show_client_name(struct device *dev, struct device_attribute *att
         return sprintf(buf, "%s\n", client->name);
 }
 
-/* 
- * We can't use the DEVICE_ATTR() macro here as we want the same filename for a
- * different type of a device.  So beware if the DEVICE_ATTR() macro ever
- * changes, this definition will also have to change.
+/*
+ * We can't use the DEVICE_ATTR() macro here, as we used the same name for
+ * an i2c adapter attribute (above).
  */
-static struct device_attribute dev_attr_client_name = {
-        .attr   = {.name = "name", .mode = S_IRUGO, .owner = THIS_MODULE },
-        .show   = &show_client_name,
-};
+static struct device_attribute dev_attr_client_name =
+        __ATTR(name, S_IRUGO, &show_client_name, NULL);
 
 
 /* ---------------------------------------------------
- * registering functions 
- * --------------------------------------------------- 
+ * registering functions
+ * ---------------------------------------------------
  */
 
 /* -----
@@ -314,7 +311,7 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
         res = driver_register(&driver->driver);
         if (res)
                 return res;
-        
+
         mutex_lock(&core_lists);
 
         list_add_tail(&driver->list,&drivers);
@@ -338,13 +335,13 @@ int i2c_del_driver(struct i2c_driver *driver)
         struct list_head   *item1, *item2, *_n;
         struct i2c_client  *client;
         struct i2c_adapter *adap;
-        
+
         int res = 0;
 
         mutex_lock(&core_lists);
 
         /* Have a look at each adapter, if clients of this driver are still
-         * attached. If so, detach them to be able to kill the driver 
+         * attached. If so, detach them to be able to kill the driver
          * afterwards.
          */
         list_for_each(item1,&adapters) {
@@ -419,14 +416,14 @@ int i2c_attach_client(struct i2c_client *client)
                 goto out_unlock;
         }
         list_add_tail(&client->list,&adapter->clients);
-        
+
         client->usage_count = 0;
 
         client->dev.parent = &client->adapter->dev;
         client->dev.driver = &client->driver->driver;
         client->dev.bus = &i2c_bus_type;
         client->dev.release = &i2c_client_release;
-        
+
         snprintf(&client->dev.bus_id[0], sizeof(client->dev.bus_id),
                 "%d-%04x", i2c_adapter_id(adapter), client->addr);
         dev_dbg(&adapter->dev, "client [%s] registered with bus id %s\n",
@@ -467,7 +464,7 @@ int i2c_detach_client(struct i2c_client *client)
 {
         struct i2c_adapter *adapter = client->adapter;
         int res = 0;
-        
+
         if (client->usage_count > 0) {
                 dev_warn(&client->dev, "Client [%s] still busy, "
                          "can't detach\n", client->name);
@@ -535,10 +532,10 @@ int i2c_release_client(struct i2c_client *client)
                          __FUNCTION__);
                 return -EPERM;
         }
-        
+
         client->usage_count--;
         i2c_dec_use_client(client);
-        
+
         return 0;
 }
 
@@ -603,7 +600,7 @@ int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num)
                 }
 #endif
 
-                mutex_lock(&adap->bus_lock);
+                mutex_lock_nested(&adap->bus_lock, adap->level);
                 ret = adap->algo->master_xfer(adap,msgs,num);
                 mutex_unlock(&adap->bus_lock);
 
@@ -624,7 +621,7 @@ int i2c_master_send(struct i2c_client *client,const char *buf ,int count)
         msg.flags = client->flags & I2C_M_TEN;
         msg.len = count;
         msg.buf = (char *)buf;
-        
+
         ret = i2c_transfer(adap, &msg, 1);
 
         /* If everything went ok (i.e. 1 msg transmitted), return #bytes
@@ -757,7 +754,7 @@ int i2c_probe(struct i2c_adapter *adapter,
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) {
                 if (address_data->probe[0] == I2C_CLIENT_END
                  && address_data->normal_i2c[0] == I2C_CLIENT_END)
-                        return 0;
+                        return 0;
 
                 dev_warn(&adapter->dev, "SMBus Quick command not supported, "
                          "can't probe for chips\n");
@@ -817,7 +814,7 @@ int i2c_probe(struct i2c_adapter *adapter,
 struct i2c_adapter* i2c_get_adapter(int id)
 {
         struct i2c_adapter *adapter;
-        
+
         mutex_lock(&core_lists);
         adapter = (struct i2c_adapter *)idr_find(&i2c_adapter_idr, id);
         if (adapter && !try_module_get(adapter->owner))
@@ -834,14 +831,14 @@ void i2c_put_adapter(struct i2c_adapter *adap)
 
 /* The SMBus parts */
 
-#define POLY    (0x1070U << 3) 
+#define POLY    (0x1070U << 3)
 static u8
 crc8(u16 data)
 {
         int i;
-  
+
         for(i = 0; i < 8; i++) {
-                if (data & 0x8000) 
+                if (data & 0x8000)
                         data = data ^ POLY;
                 data = data << 1;
         }
@@ -891,13 +888,13 @@ static int i2c_smbus_check_pec(u8 cpec, struct i2c_msg *msg)
                         rpec, cpec);
                 return -1;
         }
-        return 0;       
+        return 0;
 }
 
 s32 i2c_smbus_write_quick(struct i2c_client *client, u8 value)
 {
         return i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-                              value,0,I2C_SMBUS_QUICK,NULL);
+                              value,0,I2C_SMBUS_QUICK,NULL);
 }
 
 s32 i2c_smbus_read_byte(struct i2c_client *client)
@@ -996,11 +993,11 @@ s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client, u8 command,
                               I2C_SMBUS_I2C_BLOCK_DATA, &data);
 }
 
-/* Simulate a SMBus command using the i2c protocol 
+/* Simulate a SMBus command using the i2c protocol
    No checking of parameters is done!  */
-static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr, 
+static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
                                    unsigned short flags,
-                                   char read_write, u8 command, int size, 
+                                   char read_write, u8 command, int size,
                                    union i2c_smbus_data * data)
 {
         /* So we need to generate a series of msgs. In the case of writing, we
@@ -1010,7 +1007,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
         unsigned char msgbuf0[I2C_SMBUS_BLOCK_MAX+3];
         unsigned char msgbuf1[I2C_SMBUS_BLOCK_MAX+2];
         int num = read_write == I2C_SMBUS_READ?2:1;
-        struct i2c_msg msg[2] = { { addr, flags, 1, msgbuf0 }, 
+        struct i2c_msg msg[2] = { { addr, flags, 1, msgbuf0 },
                                   { addr, flags | I2C_M_RD, 0, msgbuf1 }
                                 };
         int i;
@@ -1103,14 +1100,14 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
         if (i) {
                 /* Compute PEC if first message is a write */
                 if (!(msg[0].flags & I2C_M_RD)) {
-                        if (num == 1) /* Write only */
+                        if (num == 1) /* Write only */
                                 i2c_smbus_add_pec(&msg[0]);
                         else /* Write followed by read */
                                 partial_pec = i2c_smbus_msg_pec(0, &msg[0]);
                 }
                 /* Ask for PEC if last message is a read */
                 if (msg[num-1].flags & I2C_M_RD)
-                        msg[num-1].len++;
+                        msg[num-1].len++;
         }
 
         if (i2c_transfer(adapter, msg, num) < 0)
@@ -1130,7 +1127,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
                         case I2C_SMBUS_BYTE_DATA:
                                 data->byte = msgbuf1[0];
                                 break;
-                        case I2C_SMBUS_WORD_DATA: 
+                        case I2C_SMBUS_WORD_DATA:
                         case I2C_SMBUS_PROC_CALL:
                                 data->word = msgbuf1[0] | (msgbuf1[1] << 8);
                                 break;
@@ -1146,7 +1143,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
 
 
 s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags,
-                   char read_write, u8 command, int size, 
+                   char read_write, u8 command, int size,
                    union i2c_smbus_data * data)
 {
         s32 res;
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 2e22a2ffa606..ac5bd2a7ca99 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -1,5 +1,5 @@
 /*
-    i2c-dev.c - i2c-bus driver, char device interface  
+    i2c-dev.c - i2c-bus driver, char device interface
 
     Copyright (C) 1995-97 Simon G. Vogl
     Copyright (C) 1998-99 Frodo Looijaard <frodol@dds.nl>
@@ -90,6 +90,7 @@ static void return_i2c_dev(struct i2c_dev *i2c_dev)
         spin_lock(&i2c_dev_list_lock);
         list_del(&i2c_dev->list);
         spin_unlock(&i2c_dev_list_lock);
+        kfree(i2c_dev);
 }
 
 static ssize_t show_adapter_name(struct device *dev,
@@ -172,7 +173,7 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
         switch ( cmd ) {
         case I2C_SLAVE:
         case I2C_SLAVE_FORCE:
-                if ((arg > 0x3ff) || 
+                if ((arg > 0x3ff) ||
                     (((client->flags & I2C_M_TEN) == 0) && arg > 0x7f))
                         return -EINVAL;
                 if ((cmd == I2C_SLAVE) && i2c_check_addr(client->adapter,arg))
@@ -193,12 +194,11 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
                 return 0;
         case I2C_FUNCS:
                 funcs = i2c_get_functionality(client->adapter);
-                return (copy_to_user((unsigned long __user *)arg, &funcs,
-                                     sizeof(unsigned long)))?-EFAULT:0;
+                return put_user(funcs, (unsigned long __user *)arg);
 
         case I2C_RDWR:
-                if (copy_from_user(&rdwr_arg, 
-                                   (struct i2c_rdwr_ioctl_data __user *)arg, 
+                if (copy_from_user(&rdwr_arg,
+                                   (struct i2c_rdwr_ioctl_data __user *)arg,
                                    sizeof(rdwr_arg)))
                         return -EFAULT;
 
@@ -206,9 +206,9 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
                  * be sent at once */
                 if (rdwr_arg.nmsgs > I2C_RDRW_IOCTL_MAX_MSGS)
                         return -EINVAL;
-                
+
                 rdwr_pa = (struct i2c_msg *)
-                        kmalloc(rdwr_arg.nmsgs * sizeof(struct i2c_msg), 
+                        kmalloc(rdwr_arg.nmsgs * sizeof(struct i2c_msg),
                         GFP_KERNEL);
 
                 if (rdwr_pa == NULL) return -ENOMEM;
@@ -278,9 +278,9 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
                                    (struct i2c_smbus_ioctl_data __user *) arg,
                                    sizeof(struct i2c_smbus_ioctl_data)))
                         return -EFAULT;
-                if ((data_arg.size != I2C_SMBUS_BYTE) && 
+                if ((data_arg.size != I2C_SMBUS_BYTE) &&
                     (data_arg.size != I2C_SMBUS_QUICK) &&
-                    (data_arg.size != I2C_SMBUS_BYTE_DATA) && 
+                    (data_arg.size != I2C_SMBUS_BYTE_DATA) &&
                     (data_arg.size != I2C_SMBUS_WORD_DATA) &&
                     (data_arg.size != I2C_SMBUS_PROC_CALL) &&
                     (data_arg.size != I2C_SMBUS_BLOCK_DATA) &&
@@ -291,11 +291,11 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
                                 data_arg.size);
                         return -EINVAL;
                 }
-                /* Note that I2C_SMBUS_READ and I2C_SMBUS_WRITE are 0 and 1, 
+                /* Note that I2C_SMBUS_READ and I2C_SMBUS_WRITE are 0 and 1,
                    so the check is valid if size==I2C_SMBUS_QUICK too. */
-                if ((data_arg.read_write != I2C_SMBUS_READ) && 
+                if ((data_arg.read_write != I2C_SMBUS_READ) &&
                     (data_arg.read_write != I2C_SMBUS_WRITE)) {
-                        dev_dbg(&client->adapter->dev, 
+                        dev_dbg(&client->adapter->dev,
                                 "read_write out of range (%x) in ioctl I2C_SMBUS.\n",
                                 data_arg.read_write);
                         return -EINVAL;
@@ -304,7 +304,7 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
                 /* Note that command values are always valid! */
 
                 if ((data_arg.size == I2C_SMBUS_QUICK) ||
-                    ((data_arg.size == I2C_SMBUS_BYTE) && 
+                    ((data_arg.size == I2C_SMBUS_BYTE) &&
                     (data_arg.read_write == I2C_SMBUS_WRITE)))
                         /* These are special: we do not use data */
                         return i2c_smbus_xfer(client->adapter, client->addr,
@@ -322,14 +322,14 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
                 if ((data_arg.size == I2C_SMBUS_BYTE_DATA) ||
                     (data_arg.size == I2C_SMBUS_BYTE))
                         datasize = sizeof(data_arg.data->byte);
-                else if ((data_arg.size == I2C_SMBUS_WORD_DATA) || 
+                else if ((data_arg.size == I2C_SMBUS_WORD_DATA) ||
                          (data_arg.size == I2C_SMBUS_PROC_CALL))
                         datasize = sizeof(data_arg.data->word);
                 else /* size == smbus block, i2c block, or block proc. call */
                         datasize = sizeof(data_arg.data->block);
 
-                if ((data_arg.size == I2C_SMBUS_PROC_CALL) || 
-                    (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) || 
+                if ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
+                    (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
                     (data_arg.read_write == I2C_SMBUS_WRITE)) {
                         if (copy_from_user(&temp, data_arg.data, datasize))
                                 return -EFAULT;
@@ -337,8 +337,8 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
                 res = i2c_smbus_xfer(client->adapter,client->addr,client->flags,
                       data_arg.read_write,
                       data_arg.command,data_arg.size,&temp);
-                if (! res && ((data_arg.size == I2C_SMBUS_PROC_CALL) || 
-                              (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) || 
+                if (! res && ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
+                              (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
                               (data_arg.read_write == I2C_SMBUS_READ))) {
                         if (copy_to_user(data_arg.data, &temp, datasize))
                                 return -EFAULT;
@@ -417,8 +417,8 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
         i2c_dev->dev = device_create(i2c_dev_class, &adap->dev,
                                      MKDEV(I2C_MAJOR, adap->nr),
                                      "i2c-%d", adap->nr);
-        if (!i2c_dev->dev) {
-                res = -ENODEV;
+        if (IS_ERR(i2c_dev->dev)) {
+                res = PTR_ERR(i2c_dev->dev);
                 goto error;
         }
         res = device_create_file(i2c_dev->dev, &dev_attr_name);
@@ -432,7 +432,6 @@ error_destroy:
         device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
 error:
         return_i2c_dev(i2c_dev);
-        kfree(i2c_dev);
         return res;
 }
 
@@ -447,7 +446,6 @@ static int i2cdev_detach_adapter(struct i2c_adapter *adap)
         device_remove_file(i2c_dev->dev, &dev_attr_name);
         return_i2c_dev(i2c_dev);
         device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
-        kfree(i2c_dev);
 
         pr_debug("i2c-dev: adapter [%s] unregistered\n", adap->name);
         return 0;
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index e23bc0d62159..3f828052f8d2 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -796,7 +796,7 @@ endchoice
 config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ
        int "Maximum transfer size (KB) per request (up to 128)"
        default "128"
-       depends BLK_DEV_IDE_AU1XXX
+       depends on BLK_DEV_IDE_AU1XXX
 
 config IDE_ARM
         def_bool ARM && (ARCH_A5K || ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK)
diff --git a/drivers/ieee1394/pcilynx.c b/drivers/ieee1394/pcilynx.c
index 13a617917bf2..fbb7f14ec509 100644
--- a/drivers/ieee1394/pcilynx.c
+++ b/drivers/ieee1394/pcilynx.c
@@ -1485,7 +1485,7 @@ static int __devinit add_card(struct pci_dev *dev,
 
                         }
 
-                        i2c_bit_del_bus(i2c_ad);
+                        i2c_del_adapter(i2c_ad);
                         kfree(i2c_ad);
                 }
         }
diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile
index 163d991eb8c9..50fb1cd447b7 100644
--- a/drivers/infiniband/core/Makefile
+++ b/drivers/infiniband/core/Makefile
@@ -1,9 +1,11 @@
 infiniband-$(CONFIG_INFINIBAND_ADDR_TRANS)      := ib_addr.o rdma_cm.o
+user_access-$(CONFIG_INFINIBAND_ADDR_TRANS)     := rdma_ucm.o
 
 obj-$(CONFIG_INFINIBAND) +=             ib_core.o ib_mad.o ib_sa.o \
                                         ib_cm.o iw_cm.o $(infiniband-y)
 obj-$(CONFIG_INFINIBAND_USER_MAD) +=    ib_umad.o
-obj-$(CONFIG_INFINIBAND_USER_ACCESS) += ib_uverbs.o ib_ucm.o
+obj-$(CONFIG_INFINIBAND_USER_ACCESS) += ib_uverbs.o ib_ucm.o \
+                                        $(user_access-y)
 
 ib_core-y :=                    packer.o ud_header.o verbs.o sysfs.o \
                                 device.o fmr_pool.o cache.o
@@ -18,6 +20,8 @@ iw_cm-y :=			iwcm.o
 
 rdma_cm-y :=                    cma.o
 
+rdma_ucm-y :=                   ucma.o
+
 ib_addr-y :=                    addr.o
 
 ib_umad-y :=                    user_mad.o
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 79c937bf6962..d446998b12a4 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -3289,6 +3289,10 @@ static int cm_init_qp_rts_attr(struct cm_id_private *cm_id_priv,
 
         spin_lock_irqsave(&cm_id_priv->lock, flags);
         switch (cm_id_priv->id.state) {
+        /* Allow transition to RTS before sending REP */
+        case IB_CM_REQ_RCVD:
+        case IB_CM_MRA_REQ_SENT:
+
         case IB_CM_REP_RCVD:
         case IB_CM_MRA_REP_SENT:
         case IB_CM_REP_SENT:
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 985a6b564d8f..533193d4e5df 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -70,6 +70,7 @@ static DEFINE_MUTEX(lock);
 static struct workqueue_struct *cma_wq;
 static DEFINE_IDR(sdp_ps);
 static DEFINE_IDR(tcp_ps);
+static DEFINE_IDR(udp_ps);
 
 struct cma_device {
         struct list_head        list;
@@ -133,7 +134,6 @@ struct rdma_id_private {
 
         u32                     seq_num;
         u32                     qp_num;
-        enum ib_qp_type         qp_type;
         u8                      srq;
 };
 
@@ -392,7 +392,6 @@ int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd,
 
         id->qp = qp;
         id_priv->qp_num = qp->qp_num;
-        id_priv->qp_type = qp->qp_type;
         id_priv->srq = (qp->srq != NULL);
         return 0;
 err:
@@ -510,9 +509,17 @@ static inline int cma_any_addr(struct sockaddr *addr)
         return cma_zero_addr(addr) || cma_loopback_addr(addr);
 }
 
+static inline __be16 cma_port(struct sockaddr *addr)
+{
+        if (addr->sa_family == AF_INET)
+                return ((struct sockaddr_in *) addr)->sin_port;
+        else
+                return ((struct sockaddr_in6 *) addr)->sin6_port;
+}
+
 static inline int cma_any_port(struct sockaddr *addr)
 {
-        return !((struct sockaddr_in *) addr)->sin_port;
+        return !cma_port(addr);
 }
 
 static int cma_get_net_info(void *hdr, enum rdma_port_space ps,
@@ -594,20 +601,6 @@ static inline int cma_user_data_offset(enum rdma_port_space ps)
         }
 }
 
-static int cma_notify_user(struct rdma_id_private *id_priv,
-                           enum rdma_cm_event_type type, int status,
-                           void *data, u8 data_len)
-{
-        struct rdma_cm_event event;
-
-        event.event = type;
-        event.status = status;
-        event.private_data = data;
-        event.private_data_len = data_len;
-
-        return id_priv->id.event_handler(&id_priv->id, &event);
-}
-
 static void cma_cancel_route(struct rdma_id_private *id_priv)
 {
         switch (rdma_node_get_transport(id_priv->id.device->node_type)) {
@@ -776,63 +769,61 @@ static int cma_verify_rep(struct rdma_id_private *id_priv, void *data)
         return 0;
 }
 
-static int cma_rtu_recv(struct rdma_id_private *id_priv)
+static void cma_set_rep_event_data(struct rdma_cm_event *event,
+                                   struct ib_cm_rep_event_param *rep_data,
+                                   void *private_data)
 {
-        int ret;
-
-        ret = cma_modify_qp_rts(&id_priv->id);
-        if (ret)
-                goto reject;
-
-        return 0;
-reject:
-        cma_modify_qp_err(&id_priv->id);
-        ib_send_cm_rej(id_priv->cm_id.ib, IB_CM_REJ_CONSUMER_DEFINED,
-                       NULL, 0, NULL, 0);
-        return ret;
+        event->param.conn.private_data = private_data;
+        event->param.conn.private_data_len = IB_CM_REP_PRIVATE_DATA_SIZE;
+        event->param.conn.responder_resources = rep_data->responder_resources;
+        event->param.conn.initiator_depth = rep_data->initiator_depth;
+        event->param.conn.flow_control = rep_data->flow_control;
+        event->param.conn.rnr_retry_count = rep_data->rnr_retry_count;
+        event->param.conn.srq = rep_data->srq;
+        event->param.conn.qp_num = rep_data->remote_qpn;
 }
 
 static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 {
         struct rdma_id_private *id_priv = cm_id->context;
-        enum rdma_cm_event_type event;
-        u8 private_data_len = 0;
-        int ret = 0, status = 0;
+        struct rdma_cm_event event;
+        int ret = 0;
 
         atomic_inc(&id_priv->dev_remove);
         if (!cma_comp(id_priv, CMA_CONNECT))
                 goto out;
 
+        memset(&event, 0, sizeof event);
         switch (ib_event->event) {
         case IB_CM_REQ_ERROR:
         case IB_CM_REP_ERROR:
-                event = RDMA_CM_EVENT_UNREACHABLE;
-                status = -ETIMEDOUT;
+                event.event = RDMA_CM_EVENT_UNREACHABLE;
+                event.status = -ETIMEDOUT;
                 break;
         case IB_CM_REP_RECEIVED:
-                status = cma_verify_rep(id_priv, ib_event->private_data);
-                if (status)
-                        event = RDMA_CM_EVENT_CONNECT_ERROR;
+                event.status = cma_verify_rep(id_priv, ib_event->private_data);
+                if (event.status)
+                        event.event = RDMA_CM_EVENT_CONNECT_ERROR;
                 else if (id_priv->id.qp && id_priv->id.ps != RDMA_PS_SDP) {
-                        status = cma_rep_recv(id_priv);
-                        event = status ? RDMA_CM_EVENT_CONNECT_ERROR :
-                                         RDMA_CM_EVENT_ESTABLISHED;
+                        event.status = cma_rep_recv(id_priv);
+                        event.event = event.status ? RDMA_CM_EVENT_CONNECT_ERROR :
+                                                     RDMA_CM_EVENT_ESTABLISHED;
                 } else
-                        event = RDMA_CM_EVENT_CONNECT_RESPONSE;
-                private_data_len = IB_CM_REP_PRIVATE_DATA_SIZE;
+                        event.event = RDMA_CM_EVENT_CONNECT_RESPONSE;
+                cma_set_rep_event_data(&event, &ib_event->param.rep_rcvd,
+                                       ib_event->private_data);
                 break;
         case IB_CM_RTU_RECEIVED:
-                status = cma_rtu_recv(id_priv);
-                event = status ? RDMA_CM_EVENT_CONNECT_ERROR :
-                                 RDMA_CM_EVENT_ESTABLISHED;
+        case IB_CM_USER_ESTABLISHED:
+                event.event = RDMA_CM_EVENT_ESTABLISHED;
                 break;
         case IB_CM_DREQ_ERROR:
-                status = -ETIMEDOUT; /* fall through */
+                event.status = -ETIMEDOUT; /* fall through */
         case IB_CM_DREQ_RECEIVED:
         case IB_CM_DREP_RECEIVED:
                 if (!cma_comp_exch(id_priv, CMA_CONNECT, CMA_DISCONNECT))
                         goto out;
-                event = RDMA_CM_EVENT_DISCONNECTED;
+                event.event = RDMA_CM_EVENT_DISCONNECTED;
                 break;
         case IB_CM_TIMEWAIT_EXIT:
         case IB_CM_MRA_RECEIVED:
@@ -840,9 +831,10 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
                 goto out;
         case IB_CM_REJ_RECEIVED:
                 cma_modify_qp_err(&id_priv->id);
-                status = ib_event->param.rej_rcvd.reason;
-                event = RDMA_CM_EVENT_REJECTED;
-                private_data_len = IB_CM_REJ_PRIVATE_DATA_SIZE;
+                event.status = ib_event->param.rej_rcvd.reason;
+                event.event = RDMA_CM_EVENT_REJECTED;
+                event.param.conn.private_data = ib_event->private_data;
+                event.param.conn.private_data_len = IB_CM_REJ_PRIVATE_DATA_SIZE;
                 break;
         default:
                 printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d",
@@ -850,8 +842,7 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
                 goto out;
         }
 
-        ret = cma_notify_user(id_priv, event, status, ib_event->private_data,
-                              private_data_len);
+        ret = id_priv->id.event_handler(&id_priv->id, &event);
         if (ret) {
                 /* Destroy the CM ID by returning a non-zero value. */
                 id_priv->cm_id.ib = NULL;
@@ -865,8 +856,8 @@ out:
         return ret;
 }
 
-static struct rdma_id_private *cma_new_id(struct rdma_cm_id *listen_id,
-                                          struct ib_cm_event *ib_event)
+static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
+                                               struct ib_cm_event *ib_event)
 {
         struct rdma_id_private *id_priv;
         struct rdma_cm_id *id;
@@ -913,9 +904,61 @@ err:
         return NULL;
 }
 
+static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
+                                              struct ib_cm_event *ib_event)
+{
+        struct rdma_id_private *id_priv;
+        struct rdma_cm_id *id;
+        union cma_ip_addr *src, *dst;
+        __u16 port;
+        u8 ip_ver;
+        int ret;
+
+        id = rdma_create_id(listen_id->event_handler, listen_id->context,
+                            listen_id->ps);
+        if (IS_ERR(id))
+                return NULL;
+
+
+        if (cma_get_net_info(ib_event->private_data, listen_id->ps,
+                             &ip_ver, &port, &src, &dst))
+                goto err;
+
+        cma_save_net_info(&id->route.addr, &listen_id->route.addr,
+                          ip_ver, port, src, dst);
+
+        ret = rdma_translate_ip(&id->route.addr.src_addr,
+                                &id->route.addr.dev_addr);
+        if (ret)
+                goto err;
+
+        id_priv = container_of(id, struct rdma_id_private, id);
+        id_priv->state = CMA_CONNECT;
+        return id_priv;
+err:
+        rdma_destroy_id(id);
+        return NULL;
+}
+
+static void cma_set_req_event_data(struct rdma_cm_event *event,
+                                   struct ib_cm_req_event_param *req_data,
+                                   void *private_data, int offset)
+{
+        event->param.conn.private_data = private_data + offset;
+        event->param.conn.private_data_len = IB_CM_REQ_PRIVATE_DATA_SIZE - offset;
+        event->param.conn.responder_resources = req_data->responder_resources;
+        event->param.conn.initiator_depth = req_data->initiator_depth;
+        event->param.conn.flow_control = req_data->flow_control;
+        event->param.conn.retry_count = req_data->retry_count;
+        event->param.conn.rnr_retry_count = req_data->rnr_retry_count;
+        event->param.conn.srq = req_data->srq;
+        event->param.conn.qp_num = req_data->remote_qpn;
+}
+
 static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 {
         struct rdma_id_private *listen_id, *conn_id;
+        struct rdma_cm_event event;
         int offset, ret;
 
         listen_id = cm_id->context;
@@ -925,7 +968,19 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
                 goto out;
         }
 
-        conn_id = cma_new_id(&listen_id->id, ib_event);
+        memset(&event, 0, sizeof event);
+        offset = cma_user_data_offset(listen_id->id.ps);
+        event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
+        if (listen_id->id.ps == RDMA_PS_UDP) {
+                conn_id = cma_new_udp_id(&listen_id->id, ib_event);
+                event.param.ud.private_data = ib_event->private_data + offset;
+                event.param.ud.private_data_len =
+                                IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE - offset;
+        } else {
+                conn_id = cma_new_conn_id(&listen_id->id, ib_event);
+                cma_set_req_event_data(&event, &ib_event->param.req_rcvd,
+                                       ib_event->private_data, offset);
+        }
         if (!conn_id) {
                 ret = -ENOMEM;
                 goto out;
@@ -942,10 +997,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
         cm_id->context = conn_id;
         cm_id->cm_handler = cma_ib_handler;
 
-        offset = cma_user_data_offset(listen_id->id.ps);
-        ret = cma_notify_user(conn_id, RDMA_CM_EVENT_CONNECT_REQUEST, 0,
-                              ib_event->private_data + offset,
-                              IB_CM_REQ_PRIVATE_DATA_SIZE - offset);
+        ret = conn_id->id.event_handler(&conn_id->id, &event);
         if (!ret)
                 goto out;
 
@@ -964,8 +1016,7 @@ out:
 
 static __be64 cma_get_service_id(enum rdma_port_space ps, struct sockaddr *addr)
 {
-        return cpu_to_be64(((u64)ps << 16) +
-               be16_to_cpu(((struct sockaddr_in *) addr)->sin_port));
+        return cpu_to_be64(((u64)ps << 16) + be16_to_cpu(cma_port(addr)));
 }
 
 static void cma_set_compare_data(enum rdma_port_space ps, struct sockaddr *addr,
@@ -1021,15 +1072,16 @@ static void cma_set_compare_data(enum rdma_port_space ps, struct sockaddr *addr,
 static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
 {
         struct rdma_id_private *id_priv = iw_id->context;
-        enum rdma_cm_event_type event = 0;
+        struct rdma_cm_event event;
         struct sockaddr_in *sin;
         int ret = 0;
 
+        memset(&event, 0, sizeof event);
         atomic_inc(&id_priv->dev_remove);
 
         switch (iw_event->event) {
         case IW_CM_EVENT_CLOSE:
-                event = RDMA_CM_EVENT_DISCONNECTED;
+                event.event = RDMA_CM_EVENT_DISCONNECTED;
                 break;
         case IW_CM_EVENT_CONNECT_REPLY:
                 sin = (struct sockaddr_in *) &id_priv->id.route.addr.src_addr;
@@ -1037,20 +1089,21 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
                 sin = (struct sockaddr_in *) &id_priv->id.route.addr.dst_addr;
                 *sin = iw_event->remote_addr;
                 if (iw_event->status)
-                        event = RDMA_CM_EVENT_REJECTED;
+                        event.event = RDMA_CM_EVENT_REJECTED;
                 else
-                        event = RDMA_CM_EVENT_ESTABLISHED;
+                        event.event = RDMA_CM_EVENT_ESTABLISHED;
                 break;
         case IW_CM_EVENT_ESTABLISHED:
-                event = RDMA_CM_EVENT_ESTABLISHED;
+                event.event = RDMA_CM_EVENT_ESTABLISHED;
                 break;
         default:
                 BUG_ON(1);
         }
 
-        ret = cma_notify_user(id_priv, event, iw_event->status,
-                              iw_event->private_data,
-                              iw_event->private_data_len);
+        event.status = iw_event->status;
+        event.param.conn.private_data = iw_event->private_data;
+        event.param.conn.private_data_len = iw_event->private_data_len;
+        ret = id_priv->id.event_handler(&id_priv->id, &event);
         if (ret) {
                 /* Destroy the CM ID by returning a non-zero value. */
                 id_priv->cm_id.iw = NULL;
@@ -1071,6 +1124,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
         struct rdma_id_private *listen_id, *conn_id;
         struct sockaddr_in *sin;
         struct net_device *dev = NULL;
+        struct rdma_cm_event event;
         int ret;
 
         listen_id = cm_id->context;
@@ -1124,9 +1178,11 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
         sin = (struct sockaddr_in *) &new_cm_id->route.addr.dst_addr;
         *sin = iw_event->remote_addr;
 
-        ret = cma_notify_user(conn_id, RDMA_CM_EVENT_CONNECT_REQUEST, 0,
-                              iw_event->private_data,
-                              iw_event->private_data_len);
+        memset(&event, 0, sizeof event);
+        event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
+        event.param.conn.private_data = iw_event->private_data;
+        event.param.conn.private_data_len = iw_event->private_data_len;
+        ret = conn_id->id.event_handler(&conn_id->id, &event);
         if (ret) {
                 /* User wants to destroy the CM ID */
                 conn_id->cm_id.iw = NULL;
@@ -1515,8 +1571,9 @@ static void addr_handler(int status, struct sockaddr *src_addr,
                          struct rdma_dev_addr *dev_addr, void *context)
 {
         struct rdma_id_private *id_priv = context;
-        enum rdma_cm_event_type event;
+        struct rdma_cm_event event;
 
+        memset(&event, 0, sizeof event);
         atomic_inc(&id_priv->dev_remove);
 
         /*
@@ -1536,14 +1593,15 @@ static void addr_handler(int status, struct sockaddr *src_addr,
         if (status) {
                 if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ADDR_BOUND))
                         goto out;
-                event = RDMA_CM_EVENT_ADDR_ERROR;
+                event.event = RDMA_CM_EVENT_ADDR_ERROR;
+                event.status = status;
         } else {
                 memcpy(&id_priv->id.route.addr.src_addr, src_addr,
                        ip_addr_size(src_addr));
-                event = RDMA_CM_EVENT_ADDR_RESOLVED;
+                event.event = RDMA_CM_EVENT_ADDR_RESOLVED;
         }
 
-        if (cma_notify_user(id_priv, event, status, NULL, 0)) {
+        if (id_priv->id.event_handler(&id_priv->id, &event)) {
                 cma_exch(id_priv, CMA_DESTROYING);
                 cma_release_remove(id_priv);
                 cma_deref_id(id_priv);
@@ -1733,6 +1791,9 @@ static int cma_get_port(struct rdma_id_private *id_priv)
         case RDMA_PS_TCP:
                 ps = &tcp_ps;
                 break;
+        case RDMA_PS_UDP:
+                ps = &udp_ps;
+                break;
         default:
                 return -EPROTONOSUPPORT;
         }
@@ -1821,6 +1882,110 @@ static int cma_format_hdr(void *hdr, enum rdma_port_space ps,
         return 0;
 }
 
+static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
+                                struct ib_cm_event *ib_event)
+{
+        struct rdma_id_private *id_priv = cm_id->context;
+        struct rdma_cm_event event;
+        struct ib_cm_sidr_rep_event_param *rep = &ib_event->param.sidr_rep_rcvd;
+        int ret = 0;
+
+        memset(&event, 0, sizeof event);
+        atomic_inc(&id_priv->dev_remove);
+        if (!cma_comp(id_priv, CMA_CONNECT))
+                goto out;
+
+        switch (ib_event->event) {
+        case IB_CM_SIDR_REQ_ERROR:
+                event.event = RDMA_CM_EVENT_UNREACHABLE;
+                event.status = -ETIMEDOUT;
+                break;
+        case IB_CM_SIDR_REP_RECEIVED:
+                event.param.ud.private_data = ib_event->private_data;
+                event.param.ud.private_data_len = IB_CM_SIDR_REP_PRIVATE_DATA_SIZE;
+                if (rep->status != IB_SIDR_SUCCESS) {
+                        event.event = RDMA_CM_EVENT_UNREACHABLE;
+                        event.status = ib_event->param.sidr_rep_rcvd.status;
+                        break;
+                }
+                if (rep->qkey != RDMA_UD_QKEY) {
+                        event.event = RDMA_CM_EVENT_UNREACHABLE;
+                        event.status = -EINVAL;
+                        break;
+                }
+                ib_init_ah_from_path(id_priv->id.device, id_priv->id.port_num,
+                                     id_priv->id.route.path_rec,
+                                     &event.param.ud.ah_attr);
+                event.param.ud.qp_num = rep->qpn;
+                event.param.ud.qkey = rep->qkey;
+                event.event = RDMA_CM_EVENT_ESTABLISHED;
+                event.status = 0;
+                break;
+        default:
+                printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d",
+                       ib_event->event);
+                goto out;
+        }
+
+        ret = id_priv->id.event_handler(&id_priv->id, &event);
+        if (ret) {
+                /* Destroy the CM ID by returning a non-zero value. */
+                id_priv->cm_id.ib = NULL;
+                cma_exch(id_priv, CMA_DESTROYING);
+                cma_release_remove(id_priv);
+                rdma_destroy_id(&id_priv->id);
+                return ret;
+        }
+out:
+        cma_release_remove(id_priv);
+        return ret;
+}
+
+static int cma_resolve_ib_udp(struct rdma_id_private *id_priv,
+                              struct rdma_conn_param *conn_param)
+{
+        struct ib_cm_sidr_req_param req;
+        struct rdma_route *route;
+        int ret;
+
+        req.private_data_len = sizeof(struct cma_hdr) +
+                               conn_param->private_data_len;
+        req.private_data = kzalloc(req.private_data_len, GFP_ATOMIC);
+        if (!req.private_data)
+                return -ENOMEM;
+
+        if (conn_param->private_data && conn_param->private_data_len)
+                memcpy((void *) req.private_data + sizeof(struct cma_hdr),
+                       conn_param->private_data, conn_param->private_data_len);
+
+        route = &id_priv->id.route;
+        ret = cma_format_hdr((void *) req.private_data, id_priv->id.ps, route);
+        if (ret)
+                goto out;
+
+        id_priv->cm_id.ib = ib_create_cm_id(id_priv->id.device,
+                                            cma_sidr_rep_handler, id_priv);
+        if (IS_ERR(id_priv->cm_id.ib)) {
+                ret = PTR_ERR(id_priv->cm_id.ib);
+                goto out;
+        }
+
+        req.path = route->path_rec;
+        req.service_id = cma_get_service_id(id_priv->id.ps,
+                                            &route->addr.dst_addr);
+        req.timeout_ms = 1 << (CMA_CM_RESPONSE_TIMEOUT - 8);
+        req.max_cm_retries = CMA_MAX_CM_RETRIES;
+
+        ret = ib_send_cm_sidr_req(id_priv->cm_id.ib, &req);
+        if (ret) {
+                ib_destroy_cm_id(id_priv->cm_id.ib);
+                id_priv->cm_id.ib = NULL;
+        }
+out:
+        kfree(req.private_data);
+        return ret;
+}
+
 static int cma_connect_ib(struct rdma_id_private *id_priv,
                           struct rdma_conn_param *conn_param)
 {
@@ -1860,7 +2025,7 @@ static int cma_connect_ib(struct rdma_id_private *id_priv,
         req.service_id = cma_get_service_id(id_priv->id.ps,
                                             &route->addr.dst_addr);
         req.qp_num = id_priv->qp_num;
-        req.qp_type = id_priv->qp_type;
+        req.qp_type = IB_QPT_RC;
         req.starting_psn = id_priv->seq_num;
         req.responder_resources = conn_param->responder_resources;
         req.initiator_depth = conn_param->initiator_depth;
@@ -1937,13 +2102,15 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 
         if (!id->qp) {
                 id_priv->qp_num = conn_param->qp_num;
-                id_priv->qp_type = conn_param->qp_type;
                 id_priv->srq = conn_param->srq;
         }
 
         switch (rdma_node_get_transport(id->device->node_type)) {
         case RDMA_TRANSPORT_IB:
-                ret = cma_connect_ib(id_priv, conn_param);
+                if (id->ps == RDMA_PS_UDP)
+                        ret = cma_resolve_ib_udp(id_priv, conn_param);
+                else
+                        ret = cma_connect_ib(id_priv, conn_param);
                 break;
         case RDMA_TRANSPORT_IWARP:
                 ret = cma_connect_iw(id_priv, conn_param);
@@ -1966,11 +2133,25 @@ static int cma_accept_ib(struct rdma_id_private *id_priv,
                          struct rdma_conn_param *conn_param)
 {
         struct ib_cm_rep_param rep;
-        int ret;
+        struct ib_qp_attr qp_attr;
+        int qp_attr_mask, ret;
 
-        ret = cma_modify_qp_rtr(&id_priv->id);
-        if (ret)
-                return ret;
+        if (id_priv->id.qp) {
+                ret = cma_modify_qp_rtr(&id_priv->id);
+                if (ret)
+                        goto out;
+
+                qp_attr.qp_state = IB_QPS_RTS;
+                ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, &qp_attr,
+                                         &qp_attr_mask);
+                if (ret)
+                        goto out;
+
+                qp_attr.max_rd_atomic = conn_param->initiator_depth;
+                ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);
+                if (ret)
+                        goto out;
+        }
 
         memset(&rep, 0, sizeof rep);
         rep.qp_num = id_priv->qp_num;
@@ -1985,7 +2166,9 @@ static int cma_accept_ib(struct rdma_id_private *id_priv,
         rep.rnr_retry_count = conn_param->rnr_retry_count;
         rep.srq = id_priv->srq ? 1 : 0;
 
-        return ib_send_cm_rep(id_priv->cm_id.ib, &rep);
+        ret = ib_send_cm_rep(id_priv->cm_id.ib, &rep);
+out:
+        return ret;
 }
 
 static int cma_accept_iw(struct rdma_id_private *id_priv,
@@ -2010,6 +2193,24 @@ static int cma_accept_iw(struct rdma_id_private *id_priv,
         return iw_cm_accept(id_priv->cm_id.iw, &iw_param);
 }
 
+static int cma_send_sidr_rep(struct rdma_id_private *id_priv,
+                             enum ib_cm_sidr_status status,
+                             const void *private_data, int private_data_len)
+{
+        struct ib_cm_sidr_rep_param rep;
+
+        memset(&rep, 0, sizeof rep);
+        rep.status = status;
+        if (status == IB_SIDR_SUCCESS) {
+                rep.qp_num = id_priv->qp_num;
+                rep.qkey = RDMA_UD_QKEY;
+        }
+        rep.private_data = private_data;
+        rep.private_data_len = private_data_len;
+
+        return ib_send_cm_sidr_rep(id_priv->cm_id.ib, &rep);
+}
+
 int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 {
         struct rdma_id_private *id_priv;
@@ -2021,13 +2222,16 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 
         if (!id->qp && conn_param) {
                 id_priv->qp_num = conn_param->qp_num;
-                id_priv->qp_type = conn_param->qp_type;
                 id_priv->srq = conn_param->srq;
         }
 
         switch (rdma_node_get_transport(id->device->node_type)) {
         case RDMA_TRANSPORT_IB:
-                if (conn_param)
+                if (id->ps == RDMA_PS_UDP)
+                        ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
+                                                conn_param->private_data,
+                                                conn_param->private_data_len);
+                else if (conn_param)
                         ret = cma_accept_ib(id_priv, conn_param);
                 else
                         ret = cma_rep_recv(id_priv);
@@ -2051,6 +2255,27 @@ reject:
 }
 EXPORT_SYMBOL(rdma_accept);
 
+int rdma_notify(struct rdma_cm_id *id, enum ib_event_type event)
+{
+        struct rdma_id_private *id_priv;
+        int ret;
+
+        id_priv = container_of(id, struct rdma_id_private, id);
+        if (!cma_comp(id_priv, CMA_CONNECT))
+                return -EINVAL;
+
+        switch (id->device->node_type) {
+        case RDMA_NODE_IB_CA:
+                ret = ib_cm_notify(id_priv->cm_id.ib, event);
+                break;
+        default:
+                ret = 0;
+                break;
+        }
+        return ret;
+}
+EXPORT_SYMBOL(rdma_notify);
+
 int rdma_reject(struct rdma_cm_id *id, const void *private_data,
                 u8 private_data_len)
 {
@@ -2063,9 +2288,13 @@ int rdma_reject(struct rdma_cm_id *id, const void *private_data,
 
         switch (rdma_node_get_transport(id->device->node_type)) {
         case RDMA_TRANSPORT_IB:
-                ret = ib_send_cm_rej(id_priv->cm_id.ib,
-                                     IB_CM_REJ_CONSUMER_DEFINED, NULL, 0,
-                                     private_data, private_data_len);
+                if (id->ps == RDMA_PS_UDP)
+                        ret = cma_send_sidr_rep(id_priv, IB_SIDR_REJECT,
+                                                private_data, private_data_len);
+                else
+                        ret = ib_send_cm_rej(id_priv->cm_id.ib,
+                                             IB_CM_REJ_CONSUMER_DEFINED, NULL,
+                                             0, private_data, private_data_len);
                 break;
         case RDMA_TRANSPORT_IWARP:
                 ret = iw_cm_reject(id_priv->cm_id.iw,
@@ -2136,6 +2365,7 @@ static void cma_add_one(struct ib_device *device)
 
 static int cma_remove_id_dev(struct rdma_id_private *id_priv)
 {
+        struct rdma_cm_event event;
         enum cma_state state;
 
         /* Record that we want to remove the device */
@@ -2150,8 +2380,9 @@ static int cma_remove_id_dev(struct rdma_id_private *id_priv)
         if (!cma_comp(id_priv, CMA_DEVICE_REMOVAL))
                 return 0;
 
-        return cma_notify_user(id_priv, RDMA_CM_EVENT_DEVICE_REMOVAL,
-                               0, NULL, 0);
+        memset(&event, 0, sizeof event);
+        event.event = RDMA_CM_EVENT_DEVICE_REMOVAL;
+        return id_priv->id.event_handler(&id_priv->id, &event);
 }
 
 static void cma_process_remove(struct cma_device *cma_dev)
@@ -2233,6 +2464,7 @@ static void cma_cleanup(void)
         destroy_workqueue(cma_wq);
         idr_destroy(&sdp_ps);
         idr_destroy(&tcp_ps);
+        idr_destroy(&udp_ps);
 }
 
 module_init(cma_init);
diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
index 86a3b2d401db..8926a2bd4a87 100644
--- a/drivers/infiniband/core/fmr_pool.c
+++ b/drivers/infiniband/core/fmr_pool.c
@@ -394,20 +394,12 @@ EXPORT_SYMBOL(ib_destroy_fmr_pool);
  */
 int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
 {
-        int serial;
-
-        atomic_inc(&pool->req_ser);
-        /*
-         * It's OK if someone else bumps req_ser again here -- we'll
-         * just wait a little longer.
-         */
-        serial = atomic_read(&pool->req_ser);
+        int serial = atomic_inc_return(&pool->req_ser);
 
         wake_up_process(pool->thread);
 
         if (wait_event_interruptible(pool->force_wait,
-                                     atomic_read(&pool->flush_ser) -
-                                     atomic_read(&pool->req_ser) >= 0))
+                                     atomic_read(&pool->flush_ser) - serial >= 0))
                 return -EINTR;
 
         return 0;
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 15f38d94b3a8..5ed141ebd1c8 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -998,17 +998,17 @@ int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr)
 
         mad_agent = mad_send_wr->send_buf.mad_agent;
         sge = mad_send_wr->sg_list;
-        sge[0].addr = dma_map_single(mad_agent->device->dma_device,
-                                     mad_send_wr->send_buf.mad,
-                                     sge[0].length,
-                                     DMA_TO_DEVICE);
-        pci_unmap_addr_set(mad_send_wr, header_mapping, sge[0].addr);
-
-        sge[1].addr = dma_map_single(mad_agent->device->dma_device,
-                                     ib_get_payload(mad_send_wr),
-                                     sge[1].length,
-                                     DMA_TO_DEVICE);
-        pci_unmap_addr_set(mad_send_wr, payload_mapping, sge[1].addr);
+        sge[0].addr = ib_dma_map_single(mad_agent->device,
+                                        mad_send_wr->send_buf.mad,
+                                        sge[0].length,
+                                        DMA_TO_DEVICE);
+        mad_send_wr->header_mapping = sge[0].addr;
+
+        sge[1].addr = ib_dma_map_single(mad_agent->device,
+                                        ib_get_payload(mad_send_wr),
+                                        sge[1].length,
+                                        DMA_TO_DEVICE);
+        mad_send_wr->payload_mapping = sge[1].addr;
 
         spin_lock_irqsave(&qp_info->send_queue.lock, flags);
         if (qp_info->send_queue.count < qp_info->send_queue.max_active) {
@@ -1026,12 +1026,12 @@ int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr)
         }
         spin_unlock_irqrestore(&qp_info->send_queue.lock, flags);
         if (ret) {
-                dma_unmap_single(mad_agent->device->dma_device,
-                                 pci_unmap_addr(mad_send_wr, header_mapping),
-                                 sge[0].length, DMA_TO_DEVICE);
-                dma_unmap_single(mad_agent->device->dma_device,
-                                 pci_unmap_addr(mad_send_wr, payload_mapping),
-                                 sge[1].length, DMA_TO_DEVICE);
+                ib_dma_unmap_single(mad_agent->device,
+                                    mad_send_wr->header_mapping,
+                                    sge[0].length, DMA_TO_DEVICE);
+                ib_dma_unmap_single(mad_agent->device,
+                                    mad_send_wr->payload_mapping,
+                                    sge[1].length, DMA_TO_DEVICE);
         }
         return ret;
 }
@@ -1850,11 +1850,11 @@ static void ib_mad_recv_done_handler(struct ib_mad_port_private *port_priv,
         mad_priv_hdr = container_of(mad_list, struct ib_mad_private_header,
                                     mad_list);
         recv = container_of(mad_priv_hdr, struct ib_mad_private, header);
-        dma_unmap_single(port_priv->device->dma_device,
-                         pci_unmap_addr(&recv->header, mapping),
-                         sizeof(struct ib_mad_private) -
-                         sizeof(struct ib_mad_private_header),
-                         DMA_FROM_DEVICE);
+        ib_dma_unmap_single(port_priv->device,
+                            recv->header.mapping,
+                            sizeof(struct ib_mad_private) -
+                              sizeof(struct ib_mad_private_header),
+                            DMA_FROM_DEVICE);
 
         /* Setup MAD receive work completion from "normal" work completion */
         recv->header.wc = *wc;
@@ -2080,12 +2080,12 @@ static void ib_mad_send_done_handler(struct ib_mad_port_private *port_priv,
         qp_info = send_queue->qp_info;
 
 retry:
-        dma_unmap_single(mad_send_wr->send_buf.mad_agent->device->dma_device,
-                         pci_unmap_addr(mad_send_wr, header_mapping),
-                         mad_send_wr->sg_list[0].length, DMA_TO_DEVICE);
-        dma_unmap_single(mad_send_wr->send_buf.mad_agent->device->dma_device,
-                         pci_unmap_addr(mad_send_wr, payload_mapping),
-                         mad_send_wr->sg_list[1].length, DMA_TO_DEVICE);
+        ib_dma_unmap_single(mad_send_wr->send_buf.mad_agent->device,
+                            mad_send_wr->header_mapping,
+                            mad_send_wr->sg_list[0].length, DMA_TO_DEVICE);
+        ib_dma_unmap_single(mad_send_wr->send_buf.mad_agent->device,
+                            mad_send_wr->payload_mapping,
+                            mad_send_wr->sg_list[1].length, DMA_TO_DEVICE);
         queued_send_wr = NULL;
         spin_lock_irqsave(&send_queue->lock, flags);
         list_del(&mad_list->list);
@@ -2528,13 +2528,12 @@ static int ib_mad_post_receive_mads(struct ib_mad_qp_info *qp_info,
                                 break;
                         }
                 }
-                sg_list.addr = dma_map_single(qp_info->port_priv->
-                                                device->dma_device,
-                                              &mad_priv->grh,
-                                              sizeof *mad_priv -
-                                                sizeof mad_priv->header,
-                                              DMA_FROM_DEVICE);
-                pci_unmap_addr_set(&mad_priv->header, mapping, sg_list.addr);
+                sg_list.addr = ib_dma_map_single(qp_info->port_priv->device,
+                                                 &mad_priv->grh,
+                                                 sizeof *mad_priv -
+                                                   sizeof mad_priv->header,
+                                                 DMA_FROM_DEVICE);
+                mad_priv->header.mapping = sg_list.addr;
                 recv_wr.wr_id = (unsigned long)&mad_priv->header.mad_list;
                 mad_priv->header.mad_list.mad_queue = recv_queue;
 
@@ -2549,12 +2548,11 @@ static int ib_mad_post_receive_mads(struct ib_mad_qp_info *qp_info,
                         list_del(&mad_priv->header.mad_list.list);
                         recv_queue->count--;
                         spin_unlock_irqrestore(&recv_queue->lock, flags);
-                        dma_unmap_single(qp_info->port_priv->device->dma_device,
-                                         pci_unmap_addr(&mad_priv->header,
-                                                        mapping),
-                                         sizeof *mad_priv -
-                                           sizeof mad_priv->header,
-                                         DMA_FROM_DEVICE);
+                        ib_dma_unmap_single(qp_info->port_priv->device,
+                                            mad_priv->header.mapping,
+                                            sizeof *mad_priv -
+                                              sizeof mad_priv->header,
+                                            DMA_FROM_DEVICE);
                         kmem_cache_free(ib_mad_cache, mad_priv);
                         printk(KERN_ERR PFX "ib_post_recv failed: %d\n", ret);
                         break;
@@ -2586,11 +2584,11 @@ static void cleanup_recv_queue(struct ib_mad_qp_info *qp_info)
                 /* Remove from posted receive MAD list */
                 list_del(&mad_list->list);
 
-                dma_unmap_single(qp_info->port_priv->device->dma_device,
-                                 pci_unmap_addr(&recv->header, mapping),
-                                 sizeof(struct ib_mad_private) -
-                                 sizeof(struct ib_mad_private_header),
-                                 DMA_FROM_DEVICE);
+                ib_dma_unmap_single(qp_info->port_priv->device,
+                                    recv->header.mapping,
+                                    sizeof(struct ib_mad_private) -
+                                      sizeof(struct ib_mad_private_header),
+                                    DMA_FROM_DEVICE);
                 kmem_cache_free(ib_mad_cache, recv);
         }
 
diff --git a/drivers/infiniband/core/mad_priv.h b/drivers/infiniband/core/mad_priv.h
index d5548e73e068..de89717f49fe 100644
--- a/drivers/infiniband/core/mad_priv.h
+++ b/drivers/infiniband/core/mad_priv.h
@@ -73,7 +73,7 @@ struct ib_mad_private_header {
         struct ib_mad_list_head mad_list;
         struct ib_mad_recv_wc recv_wc;
         struct ib_wc wc;
-        DECLARE_PCI_UNMAP_ADDR(mapping)
+        u64 mapping;
 } __attribute__ ((packed));
 
 struct ib_mad_private {
@@ -126,8 +126,8 @@ struct ib_mad_send_wr_private {
         struct list_head agent_list;
         struct ib_mad_agent_private *mad_agent_priv;
         struct ib_mad_send_buf send_buf;
-        DECLARE_PCI_UNMAP_ADDR(header_mapping)
-        DECLARE_PCI_UNMAP_ADDR(payload_mapping)
+        u64 header_mapping;
+        u64 payload_mapping;
         struct ib_send_wr send_wr;
         struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];
         __be64 tid;
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
new file mode 100644
index 000000000000..81a5cdc5733a
--- /dev/null
+++ b/drivers/infiniband/core/ucma.c
@@ -0,0 +1,874 @@
+/*
+ * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/completion.h>
+#include <linux/mutex.h>
+#include <linux/poll.h>
+#include <linux/idr.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/miscdevice.h>
+
+#include <rdma/rdma_user_cm.h>
+#include <rdma/ib_marshall.h>
+#include <rdma/rdma_cm.h>
+
+MODULE_AUTHOR("Sean Hefty");
+MODULE_DESCRIPTION("RDMA Userspace Connection Manager Access");
+MODULE_LICENSE("Dual BSD/GPL");
+
+enum {
+        UCMA_MAX_BACKLOG        = 128
+};
+
+struct ucma_file {
+        struct mutex            mut;
+        struct file             *filp;
+        struct list_head        ctx_list;
+        struct list_head        event_list;
+        wait_queue_head_t       poll_wait;
+};
+
+struct ucma_context {
+        int                     id;
+        struct completion       comp;
+        atomic_t                ref;
+        int                     events_reported;
+        int                     backlog;
+
+        struct ucma_file        *file;
+        struct rdma_cm_id       *cm_id;
+        u64                     uid;
+
+        struct list_head        list;
+};
+
+struct ucma_event {
+        struct ucma_context     *ctx;
+        struct list_head        list;
+        struct rdma_cm_id       *cm_id;
+        struct rdma_ucm_event_resp resp;
+};
+
+static DEFINE_MUTEX(mut);
+static DEFINE_IDR(ctx_idr);
+
+static inline struct ucma_context *_ucma_find_context(int id,
+                                                      struct ucma_file *file)
+{
+        struct ucma_context *ctx;
+
+        ctx = idr_find(&ctx_idr, id);
+        if (!ctx)
+                ctx = ERR_PTR(-ENOENT);
+        else if (ctx->file != file)
+                ctx = ERR_PTR(-EINVAL);
+        return ctx;
+}
+
+static struct ucma_context *ucma_get_ctx(struct ucma_file *file, int id)
+{
+        struct ucma_context *ctx;
+
+        mutex_lock(&mut);
+        ctx = _ucma_find_context(id, file);
+        if (!IS_ERR(ctx))
+                atomic_inc(&ctx->ref);
+        mutex_unlock(&mut);
+        return ctx;
+}
+
+static void ucma_put_ctx(struct ucma_context *ctx)
+{
+        if (atomic_dec_and_test(&ctx->ref))
+                complete(&ctx->comp);
+}
+
+static struct ucma_context *ucma_alloc_ctx(struct ucma_file *file)
+{
+        struct ucma_context *ctx;
+        int ret;
+
+        ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+        if (!ctx)
+                return NULL;
+
+        atomic_set(&ctx->ref, 1);
+        init_completion(&ctx->comp);
+        ctx->file = file;
+
+        do {
+                ret = idr_pre_get(&ctx_idr, GFP_KERNEL);
+                if (!ret)
+                        goto error;
+
+                mutex_lock(&mut);
+                ret = idr_get_new(&ctx_idr, ctx, &ctx->id);
+                mutex_unlock(&mut);
+        } while (ret == -EAGAIN);
+
+        if (ret)
+                goto error;
+
+        list_add_tail(&ctx->list, &file->ctx_list);
+        return ctx;
+
+error:
+        kfree(ctx);
+        return NULL;
+}
+
+static void ucma_copy_conn_event(struct rdma_ucm_conn_param *dst,
+                                 struct rdma_conn_param *src)
+{
+        if (src->private_data_len)
+                memcpy(dst->private_data, src->private_data,
+                       src->private_data_len);
+        dst->private_data_len = src->private_data_len;
+        dst->responder_resources =src->responder_resources;
+        dst->initiator_depth = src->initiator_depth;
+        dst->flow_control = src->flow_control;
+        dst->retry_count = src->retry_count;
+        dst->rnr_retry_count = src->rnr_retry_count;
+        dst->srq = src->srq;
+        dst->qp_num = src->qp_num;
+}
+
+static void ucma_copy_ud_event(struct rdma_ucm_ud_param *dst,
+                               struct rdma_ud_param *src)
+{
+        if (src->private_data_len)
+                memcpy(dst->private_data, src->private_data,
+                       src->private_data_len);
+        dst->private_data_len = src->private_data_len;
+        ib_copy_ah_attr_to_user(&dst->ah_attr, &src->ah_attr);
+        dst->qp_num = src->qp_num;
+        dst->qkey = src->qkey;
+}
+
+static void ucma_set_event_context(struct ucma_context *ctx,
+                                   struct rdma_cm_event *event,
+                                   struct ucma_event *uevent)
+{
+        uevent->ctx = ctx;
+        uevent->resp.uid = ctx->uid;
+        uevent->resp.id = ctx->id;
+}
+
+static int ucma_event_handler(struct rdma_cm_id *cm_id,
+                              struct rdma_cm_event *event)
+{
+        struct ucma_event *uevent;
+        struct ucma_context *ctx = cm_id->context;
+        int ret = 0;
+
+        uevent = kzalloc(sizeof(*uevent), GFP_KERNEL);
+        if (!uevent)
+                return event->event == RDMA_CM_EVENT_CONNECT_REQUEST;
+
+        uevent->cm_id = cm_id;
+        ucma_set_event_context(ctx, event, uevent);
+        uevent->resp.event = event->event;
+        uevent->resp.status = event->status;
+        if (cm_id->ps == RDMA_PS_UDP)
+                ucma_copy_ud_event(&uevent->resp.param.ud, &event->param.ud);
+        else
+                ucma_copy_conn_event(&uevent->resp.param.conn,
+                                     &event->param.conn);
+
+        mutex_lock(&ctx->file->mut);
+        if (event->event == RDMA_CM_EVENT_CONNECT_REQUEST) {
+                if (!ctx->backlog) {
+                        ret = -EDQUOT;
+                        goto out;
+                }
+                ctx->backlog--;
+        }
+        list_add_tail(&uevent->list, &ctx->file->event_list);
+        wake_up_interruptible(&ctx->file->poll_wait);
+out:
+        mutex_unlock(&ctx->file->mut);
+        return ret;
+}
+
+static ssize_t ucma_get_event(struct ucma_file *file, const char __user *inbuf,
+                              int in_len, int out_len)
+{
+        struct ucma_context *ctx;
+        struct rdma_ucm_get_event cmd;
+        struct ucma_event *uevent;
+        int ret = 0;
+        DEFINE_WAIT(wait);
+
+        if (out_len < sizeof uevent->resp)
+                return -ENOSPC;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        mutex_lock(&file->mut);
+        while (list_empty(&file->event_list)) {
+                if (file->filp->f_flags & O_NONBLOCK) {
+                        ret = -EAGAIN;
+                        break;
+                }
+
+                if (signal_pending(current)) {
+                        ret = -ERESTARTSYS;
+                        break;
+                }
+
+                prepare_to_wait(&file->poll_wait, &wait, TASK_INTERRUPTIBLE);
+                mutex_unlock(&file->mut);
+                schedule();
+                mutex_lock(&file->mut);
+                finish_wait(&file->poll_wait, &wait);
+        }
+
+        if (ret)
+                goto done;
+
+        uevent = list_entry(file->event_list.next, struct ucma_event, list);
+
+        if (uevent->resp.event == RDMA_CM_EVENT_CONNECT_REQUEST) {
+                ctx = ucma_alloc_ctx(file);
+                if (!ctx) {
+                        ret = -ENOMEM;
+                        goto done;
+                }
+                uevent->ctx->backlog++;
+                ctx->cm_id = uevent->cm_id;
+                ctx->cm_id->context = ctx;
+                uevent->resp.id = ctx->id;
+        }
+
+        if (copy_to_user((void __user *)(unsigned long)cmd.response,
+                         &uevent->resp, sizeof uevent->resp)) {
+                ret = -EFAULT;
+                goto done;
+        }
+
+        list_del(&uevent->list);
+        uevent->ctx->events_reported++;
+        kfree(uevent);
+done:
+        mutex_unlock(&file->mut);
+        return ret;
+}
+
+static ssize_t ucma_create_id(struct ucma_file *file,
+                                const char __user *inbuf,
+                                int in_len, int out_len)
+{
+        struct rdma_ucm_create_id cmd;
+        struct rdma_ucm_create_id_resp resp;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (out_len < sizeof(resp))
+                return -ENOSPC;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        mutex_lock(&file->mut);
+        ctx = ucma_alloc_ctx(file);
+        mutex_unlock(&file->mut);
+        if (!ctx)
+                return -ENOMEM;
+
+        ctx->uid = cmd.uid;
+        ctx->cm_id = rdma_create_id(ucma_event_handler, ctx, cmd.ps);
+        if (IS_ERR(ctx->cm_id)) {
+                ret = PTR_ERR(ctx->cm_id);
+                goto err1;
+        }
+
+        resp.id = ctx->id;
+        if (copy_to_user((void __user *)(unsigned long)cmd.response,
+                         &resp, sizeof(resp))) {
+                ret = -EFAULT;
+                goto err2;
+        }
+        return 0;
+
+err2:
+        rdma_destroy_id(ctx->cm_id);
+err1:
+        mutex_lock(&mut);
+        idr_remove(&ctx_idr, ctx->id);
+        mutex_unlock(&mut);
+        kfree(ctx);
+        return ret;
+}
+
+static void ucma_cleanup_events(struct ucma_context *ctx)
+{
+        struct ucma_event *uevent, *tmp;
+
+        list_for_each_entry_safe(uevent, tmp, &ctx->file->event_list, list) {
+                if (uevent->ctx != ctx)
+                        continue;
+
+                list_del(&uevent->list);
+
+                /* clear incoming connections. */
+                if (uevent->resp.event == RDMA_CM_EVENT_CONNECT_REQUEST)
+                        rdma_destroy_id(uevent->cm_id);
+
+                kfree(uevent);
+        }
+}
+
+static int ucma_free_ctx(struct ucma_context *ctx)
+{
+        int events_reported;
+
+        /* No new events will be generated after destroying the id. */
+        rdma_destroy_id(ctx->cm_id);
+
+        /* Cleanup events not yet reported to the user. */
+        mutex_lock(&ctx->file->mut);
+        ucma_cleanup_events(ctx);
+        list_del(&ctx->list);
+        mutex_unlock(&ctx->file->mut);
+
+        events_reported = ctx->events_reported;
+        kfree(ctx);
+        return events_reported;
+}
+
+static ssize_t ucma_destroy_id(struct ucma_file *file, const char __user *inbuf,
+                               int in_len, int out_len)
+{
+        struct rdma_ucm_destroy_id cmd;
+        struct rdma_ucm_destroy_id_resp resp;
+        struct ucma_context *ctx;
+        int ret = 0;
+
+        if (out_len < sizeof(resp))
+                return -ENOSPC;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        mutex_lock(&mut);
+        ctx = _ucma_find_context(cmd.id, file);
+        if (!IS_ERR(ctx))
+                idr_remove(&ctx_idr, ctx->id);
+        mutex_unlock(&mut);
+
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ucma_put_ctx(ctx);
+        wait_for_completion(&ctx->comp);
+        resp.events_reported = ucma_free_ctx(ctx);
+
+        if (copy_to_user((void __user *)(unsigned long)cmd.response,
+                         &resp, sizeof(resp)))
+                ret = -EFAULT;
+
+        return ret;
+}
+
+static ssize_t ucma_bind_addr(struct ucma_file *file, const char __user *inbuf,
+                              int in_len, int out_len)
+{
+        struct rdma_ucm_bind_addr cmd;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ret = rdma_bind_addr(ctx->cm_id, (struct sockaddr *) &cmd.addr);
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t ucma_resolve_addr(struct ucma_file *file,
+                                 const char __user *inbuf,
+                                 int in_len, int out_len)
+{
+        struct rdma_ucm_resolve_addr cmd;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr,
+                                (struct sockaddr *) &cmd.dst_addr,
+                                cmd.timeout_ms);
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t ucma_resolve_route(struct ucma_file *file,
+                                  const char __user *inbuf,
+                                  int in_len, int out_len)
+{
+        struct rdma_ucm_resolve_route cmd;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ret = rdma_resolve_route(ctx->cm_id, cmd.timeout_ms);
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static void ucma_copy_ib_route(struct rdma_ucm_query_route_resp *resp,
+                               struct rdma_route *route)
+{
+        struct rdma_dev_addr *dev_addr;
+
+        resp->num_paths = route->num_paths;
+        switch (route->num_paths) {
+        case 0:
+                dev_addr = &route->addr.dev_addr;
+                ib_addr_get_dgid(dev_addr,
+                                 (union ib_gid *) &resp->ib_route[0].dgid);
+                ib_addr_get_sgid(dev_addr,
+                                 (union ib_gid *) &resp->ib_route[0].sgid);
+                resp->ib_route[0].pkey = cpu_to_be16(ib_addr_get_pkey(dev_addr));
+                break;
+        case 2:
+                ib_copy_path_rec_to_user(&resp->ib_route[1],
+                                         &route->path_rec[1]);
+                /* fall through */
+        case 1:
+                ib_copy_path_rec_to_user(&resp->ib_route[0],
+                                         &route->path_rec[0]);
+                break;
+        default:
+                break;
+        }
+}
+
+static ssize_t ucma_query_route(struct ucma_file *file,
+                                const char __user *inbuf,
+                                int in_len, int out_len)
+{
+        struct rdma_ucm_query_route cmd;
+        struct rdma_ucm_query_route_resp resp;
+        struct ucma_context *ctx;
+        struct sockaddr *addr;
+        int ret = 0;
+
+        if (out_len < sizeof(resp))
+                return -ENOSPC;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        memset(&resp, 0, sizeof resp);
+        addr = &ctx->cm_id->route.addr.src_addr;
+        memcpy(&resp.src_addr, addr, addr->sa_family == AF_INET ?
+                                     sizeof(struct sockaddr_in) :
+                                     sizeof(struct sockaddr_in6));
+        addr = &ctx->cm_id->route.addr.dst_addr;
+        memcpy(&resp.dst_addr, addr, addr->sa_family == AF_INET ?
+                                     sizeof(struct sockaddr_in) :
+                                     sizeof(struct sockaddr_in6));
+        if (!ctx->cm_id->device)
+                goto out;
+
+        resp.node_guid = ctx->cm_id->device->node_guid;
+        resp.port_num = ctx->cm_id->port_num;
+        switch (rdma_node_get_transport(ctx->cm_id->device->node_type)) {
+        case RDMA_TRANSPORT_IB:
+                ucma_copy_ib_route(&resp, &ctx->cm_id->route);
+                break;
+        default:
+                break;
+        }
+
+out:
+        if (copy_to_user((void __user *)(unsigned long)cmd.response,
+                         &resp, sizeof(resp)))
+                ret = -EFAULT;
+
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static void ucma_copy_conn_param(struct rdma_conn_param *dst,
+                                 struct rdma_ucm_conn_param *src)
+{
+        dst->private_data = src->private_data;
+        dst->private_data_len = src->private_data_len;
+        dst->responder_resources =src->responder_resources;
+        dst->initiator_depth = src->initiator_depth;
+        dst->flow_control = src->flow_control;
+        dst->retry_count = src->retry_count;
+        dst->rnr_retry_count = src->rnr_retry_count;
+        dst->srq = src->srq;
+        dst->qp_num = src->qp_num;
+}
+
+static ssize_t ucma_connect(struct ucma_file *file, const char __user *inbuf,
+                            int in_len, int out_len)
+{
+        struct rdma_ucm_connect cmd;
+        struct rdma_conn_param conn_param;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        if (!cmd.conn_param.valid)
+                return -EINVAL;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ucma_copy_conn_param(&conn_param, &cmd.conn_param);
+        ret = rdma_connect(ctx->cm_id, &conn_param);
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t ucma_listen(struct ucma_file *file, const char __user *inbuf,
+                           int in_len, int out_len)
+{
+        struct rdma_ucm_listen cmd;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ctx->backlog = cmd.backlog > 0 && cmd.backlog < UCMA_MAX_BACKLOG ?
+                       cmd.backlog : UCMA_MAX_BACKLOG;
+        ret = rdma_listen(ctx->cm_id, ctx->backlog);
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t ucma_accept(struct ucma_file *file, const char __user *inbuf,
+                           int in_len, int out_len)
+{
+        struct rdma_ucm_accept cmd;
+        struct rdma_conn_param conn_param;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        if (cmd.conn_param.valid) {
+                ctx->uid = cmd.uid;
+                ucma_copy_conn_param(&conn_param, &cmd.conn_param);
+                ret = rdma_accept(ctx->cm_id, &conn_param);
+        } else
+                ret = rdma_accept(ctx->cm_id, NULL);
+
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t ucma_reject(struct ucma_file *file, const char __user *inbuf,
+                           int in_len, int out_len)
+{
+        struct rdma_ucm_reject cmd;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ret = rdma_reject(ctx->cm_id, cmd.private_data, cmd.private_data_len);
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t ucma_disconnect(struct ucma_file *file, const char __user *inbuf,
+                               int in_len, int out_len)
+{
+        struct rdma_ucm_disconnect cmd;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ret = rdma_disconnect(ctx->cm_id);
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t ucma_init_qp_attr(struct ucma_file *file,
+                                 const char __user *inbuf,
+                                 int in_len, int out_len)
+{
+        struct rdma_ucm_init_qp_attr cmd;
+        struct ib_uverbs_qp_attr resp;
+        struct ucma_context *ctx;
+        struct ib_qp_attr qp_attr;
+        int ret;
+
+        if (out_len < sizeof(resp))
+                return -ENOSPC;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        resp.qp_attr_mask = 0;
+        memset(&qp_attr, 0, sizeof qp_attr);
+        qp_attr.qp_state = cmd.qp_state;
+        ret = rdma_init_qp_attr(ctx->cm_id, &qp_attr, &resp.qp_attr_mask);
+        if (ret)
+                goto out;
+
+        ib_copy_qp_attr_to_user(&resp, &qp_attr);
+        if (copy_to_user((void __user *)(unsigned long)cmd.response,
+                         &resp, sizeof(resp)))
+                ret = -EFAULT;
+
+out:
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t ucma_notify(struct ucma_file *file, const char __user *inbuf,
+                           int in_len, int out_len)
+{
+        struct rdma_ucm_notify cmd;
+        struct ucma_context *ctx;
+        int ret;
+
+        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+                return -EFAULT;
+
+        ctx = ucma_get_ctx(file, cmd.id);
+        if (IS_ERR(ctx))
+                return PTR_ERR(ctx);
+
+        ret = rdma_notify(ctx->cm_id, (enum ib_event_type) cmd.event);
+        ucma_put_ctx(ctx);
+        return ret;
+}
+
+static ssize_t (*ucma_cmd_table[])(struct ucma_file *file,
+                                   const char __user *inbuf,
+                                   int in_len, int out_len) = {
+        [RDMA_USER_CM_CMD_CREATE_ID]    = ucma_create_id,
+        [RDMA_USER_CM_CMD_DESTROY_ID]   = ucma_destroy_id,
+        [RDMA_USER_CM_CMD_BIND_ADDR]    = ucma_bind_addr,
+        [RDMA_USER_CM_CMD_RESOLVE_ADDR] = ucma_resolve_addr,
+        [RDMA_USER_CM_CMD_RESOLVE_ROUTE]= ucma_resolve_route,
+        [RDMA_USER_CM_CMD_QUERY_ROUTE]  = ucma_query_route,
+        [RDMA_USER_CM_CMD_CONNECT]      = ucma_connect,
+        [RDMA_USER_CM_CMD_LISTEN]       = ucma_listen,
+        [RDMA_USER_CM_CMD_ACCEPT]       = ucma_accept,
+        [RDMA_USER_CM_CMD_REJECT]       = ucma_reject,
+        [RDMA_USER_CM_CMD_DISCONNECT]   = ucma_disconnect,
+        [RDMA_USER_CM_CMD_INIT_QP_ATTR] = ucma_init_qp_attr,
+        [RDMA_USER_CM_CMD_GET_EVENT]    = ucma_get_event,
+        [RDMA_USER_CM_CMD_GET_OPTION]   = NULL,
+        [RDMA_USER_CM_CMD_SET_OPTION]   = NULL,
+        [RDMA_USER_CM_CMD_NOTIFY]       = ucma_notify,
+};
+
+static ssize_t ucma_write(struct file *filp, const char __user *buf,
+                          size_t len, loff_t *pos)
+{
+        struct ucma_file *file = filp->private_data;
+        struct rdma_ucm_cmd_hdr hdr;
+        ssize_t ret;
+
+        if (len < sizeof(hdr))
+                return -EINVAL;
+
+        if (copy_from_user(&hdr, buf, sizeof(hdr)))
+                return -EFAULT;
+
+        if (hdr.cmd < 0 || hdr.cmd >= ARRAY_SIZE(ucma_cmd_table))
+                return -EINVAL;
+
+        if (hdr.in + sizeof(hdr) > len)
+                return -EINVAL;
+
+        if (!ucma_cmd_table[hdr.cmd])
+                return -ENOSYS;
+
+        ret = ucma_cmd_table[hdr.cmd](file, buf + sizeof(hdr), hdr.in, hdr.out);
+        if (!ret)
+                ret = len;
+
+        return ret;
+}
+
+static unsigned int ucma_poll(struct file *filp, struct poll_table_struct *wait)
+{
+        struct ucma_file *file = filp->private_data;
+        unsigned int mask = 0;
+
+        poll_wait(filp, &file->poll_wait, wait);
+
+        if (!list_empty(&file->event_list))
+                mask = POLLIN | POLLRDNORM;
+
+        return mask;
+}
+
+static int ucma_open(struct inode *inode, struct file *filp)
+{
+        struct ucma_file *file;
+
+        file = kmalloc(sizeof *file, GFP_KERNEL);
+        if (!file)
+                return -ENOMEM;
+
+        INIT_LIST_HEAD(&file->event_list);
+        INIT_LIST_HEAD(&file->ctx_list);
+        init_waitqueue_head(&file->poll_wait);
+        mutex_init(&file->mut);
+
+        filp->private_data = file;
+        file->filp = filp;
+        return 0;
+}
+
+static int ucma_close(struct inode *inode, struct file *filp)
+{
+        struct ucma_file *file = filp->private_data;
+        struct ucma_context *ctx, *tmp;
+
+        mutex_lock(&file->mut);
+        list_for_each_entry_safe(ctx, tmp, &file->ctx_list, list) {
+                mutex_unlock(&file->mut);
+
+                mutex_lock(&mut);
+                idr_remove(&ctx_idr, ctx->id);
+                mutex_unlock(&mut);
+
+                ucma_free_ctx(ctx);
+                mutex_lock(&file->mut);
+        }
+        mutex_unlock(&file->mut);
+        kfree(file);
+        return 0;
+}
+
+static struct file_operations ucma_fops = {
+        .owner   = THIS_MODULE,
+        .open    = ucma_open,
+        .release = ucma_close,
+        .write   = ucma_write,
+        .poll    = ucma_poll,
+};
+
+static struct miscdevice ucma_misc = {
+        .minor  = MISC_DYNAMIC_MINOR,
+        .name   = "rdma_cm",
+        .fops   = &ucma_fops,
+};
+
+static ssize_t show_abi_version(struct device *dev,
+                                struct device_attribute *attr,
+                                char *buf)
+{
+        return sprintf(buf, "%d\n", RDMA_USER_CM_ABI_VERSION);
+}
+static DEVICE_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
+
+static int __init ucma_init(void)
+{
+        int ret;
+
+        ret = misc_register(&ucma_misc);
+        if (ret)
+                return ret;
+
+        ret = device_create_file(ucma_misc.this_device, &dev_attr_abi_version);
+        if (ret) {
+                printk(KERN_ERR "rdma_ucm: couldn't create abi_version attr\n");
+                goto err;
+        }
+        return 0;
+err:
+        misc_deregister(&ucma_misc);
+        return ret;
+}
+
+static void __exit ucma_cleanup(void)
+{
+        device_remove_file(ucma_misc.this_device, &dev_attr_abi_version);
+        misc_deregister(&ucma_misc);
+        idr_destroy(&ctx_idr);
+}
+
+module_init(ucma_init);
+module_exit(ucma_cleanup);
diff --git a/drivers/infiniband/core/uverbs_marshall.c b/drivers/infiniband/core/uverbs_marshall.c
index ce46b13ae02b..5440da0e59b4 100644
--- a/drivers/infiniband/core/uverbs_marshall.c
+++ b/drivers/infiniband/core/uverbs_marshall.c
@@ -32,8 +32,8 @@
 
 #include <rdma/ib_marshall.h>
 
-static void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
-                                    struct ib_ah_attr *src)
+void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
+                             struct ib_ah_attr *src)
 {
         memcpy(dst->grh.dgid, src->grh.dgid.raw, sizeof src->grh.dgid);
         dst->grh.flow_label        = src->grh.flow_label;
@@ -47,6 +47,7 @@ static void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
         dst->is_global             = src->ah_flags & IB_AH_GRH ? 1 : 0;
         dst->port_num              = src->port_num;
 }
+EXPORT_SYMBOL(ib_copy_ah_attr_to_user);
 
 void ib_copy_qp_attr_to_user(struct ib_uverbs_qp_attr *dst,
                              struct ib_qp_attr *src)
diff --git a/drivers/infiniband/core/uverbs_mem.c b/drivers/infiniband/core/uverbs_mem.c
index db12cc0841df..c95fe952abd5 100644
--- a/drivers/infiniband/core/uverbs_mem.c
+++ b/drivers/infiniband/core/uverbs_mem.c
@@ -52,8 +52,8 @@ static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int d
         int i;
 
         list_for_each_entry_safe(chunk, tmp, &umem->chunk_list, list) {
-                dma_unmap_sg(dev->dma_device, chunk->page_list,
-                             chunk->nents, DMA_BIDIRECTIONAL);
+                ib_dma_unmap_sg(dev, chunk->page_list,
+                                chunk->nents, DMA_BIDIRECTIONAL);
                 for (i = 0; i < chunk->nents; ++i) {
                         if (umem->writable && dirty)
                                 set_page_dirty_lock(chunk->page_list[i].page);
@@ -136,10 +136,10 @@ int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
                                 chunk->page_list[i].length = PAGE_SIZE;
                         }
 
-                        chunk->nmap = dma_map_sg(dev->dma_device,
-                                                 &chunk->page_list[0],
-                                                 chunk->nents,
-                                                 DMA_BIDIRECTIONAL);
+                        chunk->nmap = ib_dma_map_sg(dev,
+                                                    &chunk->page_list[0],
+                                                    chunk->nents,
+                                                    DMA_BIDIRECTIONAL);
                         if (chunk->nmap <= 0) {
                                 for (i = 0; i < chunk->nents; ++i)
                                         put_page(chunk->page_list[i].page);
diff --git a/drivers/infiniband/hw/amso1100/c2_qp.c b/drivers/infiniband/hw/amso1100/c2_qp.c
index 179d005ed4a5..420c1380f5c3 100644
--- a/drivers/infiniband/hw/amso1100/c2_qp.c
+++ b/drivers/infiniband/hw/amso1100/c2_qp.c
@@ -161,8 +161,10 @@ int c2_qp_modify(struct c2_dev *c2dev, struct c2_qp *qp,
 
         if (attr_mask & IB_QP_STATE) {
                 /* Ensure the state is valid */
-                if (attr->qp_state < 0 || attr->qp_state > IB_QPS_ERR)
-                        return -EINVAL;
+                if (attr->qp_state < 0 || attr->qp_state > IB_QPS_ERR) {
+                        err = -EINVAL;
+                        goto bail0;
+                }
 
                 wr.next_qp_state = cpu_to_be32(to_c2_state(attr->qp_state));
 
@@ -184,9 +186,10 @@ int c2_qp_modify(struct c2_dev *c2dev, struct c2_qp *qp,
                 if (attr->cur_qp_state != IB_QPS_RTR &&
                     attr->cur_qp_state != IB_QPS_RTS &&
                     attr->cur_qp_state != IB_QPS_SQD &&
-                    attr->cur_qp_state != IB_QPS_SQE)
-                        return -EINVAL;
-                else
+                    attr->cur_qp_state != IB_QPS_SQE) {
+                        err = -EINVAL;
+                        goto bail0;
+                } else
                         wr.next_qp_state =
                             cpu_to_be32(to_c2_state(attr->cur_qp_state));
 
diff --git a/drivers/infiniband/hw/ipath/Makefile b/drivers/infiniband/hw/ipath/Makefile
index 7dc10551cf18..ec2e603ea241 100644
--- a/drivers/infiniband/hw/ipath/Makefile
+++ b/drivers/infiniband/hw/ipath/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_INFINIBAND_IPATH) += ib_ipath.o
 ib_ipath-y := \
         ipath_cq.o \
         ipath_diag.o \
+        ipath_dma.o \
         ipath_driver.o \
         ipath_eeprom.o \
         ipath_file_ops.o \
diff --git a/drivers/infiniband/hw/ipath/ipath_dma.c b/drivers/infiniband/hw/ipath/ipath_dma.c
new file mode 100644
index 000000000000..6e0f2b8918ce
--- /dev/null
+++ b/drivers/infiniband/hw/ipath/ipath_dma.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright (c) 2006 QLogic, Corporation. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <rdma/ib_verbs.h>
+
+#include "ipath_verbs.h"
+
+#define BAD_DMA_ADDRESS ((u64) 0)
+
+/*
+ * The following functions implement driver specific replacements
+ * for the ib_dma_*() functions.
+ *
+ * These functions return kernel virtual addresses instead of
+ * device bus addresses since the driver uses the CPU to copy
+ * data instead of using hardware DMA.
+ */
+
+static int ipath_mapping_error(struct ib_device *dev, u64 dma_addr)
+{
+        return dma_addr == BAD_DMA_ADDRESS;
+}
+
+static u64 ipath_dma_map_single(struct ib_device *dev,
+                                void *cpu_addr, size_t size,
+                                enum dma_data_direction direction)
+{
+        BUG_ON(!valid_dma_direction(direction));
+        return (u64) cpu_addr;
+}
+
+static void ipath_dma_unmap_single(struct ib_device *dev,
+                                   u64 addr, size_t size,
+                                   enum dma_data_direction direction)
+{
+        BUG_ON(!valid_dma_direction(direction));
+}
+
+static u64 ipath_dma_map_page(struct ib_device *dev,
+                              struct page *page,
+                              unsigned long offset,
+                              size_t size,
+                              enum dma_data_direction direction)
+{
+        u64 addr;
+
+        BUG_ON(!valid_dma_direction(direction));
+
+        if (offset + size > PAGE_SIZE) {
+                addr = BAD_DMA_ADDRESS;
+                goto done;
+        }
+
+        addr = (u64) page_address(page);
+        if (addr)
+                addr += offset;
+        /* TODO: handle highmem pages */
+
+done:
+        return addr;
+}
+
+static void ipath_dma_unmap_page(struct ib_device *dev,
+                                 u64 addr, size_t size,
+                                 enum dma_data_direction direction)
+{
+        BUG_ON(!valid_dma_direction(direction));
+}
+
+int ipath_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents,
+                 enum dma_data_direction direction)
+{
+        u64 addr;
+        int i;
+        int ret = nents;
+
+        BUG_ON(!valid_dma_direction(direction));
+
+        for (i = 0; i < nents; i++) {
+                addr = (u64) page_address(sg[i].page);
+                /* TODO: handle highmem pages */
+                if (!addr) {
+                        ret = 0;
+                        break;
+                }
+        }
+        return ret;
+}
+
+static void ipath_unmap_sg(struct ib_device *dev,
+                           struct scatterlist *sg, int nents,
+                           enum dma_data_direction direction)
+{
+        BUG_ON(!valid_dma_direction(direction));
+}
+
+static u64 ipath_sg_dma_address(struct ib_device *dev, struct scatterlist *sg)
+{
+        u64 addr = (u64) page_address(sg->page);
+
+        if (addr)
+                addr += sg->offset;
+        return addr;
+}
+
+static unsigned int ipath_sg_dma_len(struct ib_device *dev,
+                                     struct scatterlist *sg)
+{
+        return sg->length;
+}
+
+static void ipath_sync_single_for_cpu(struct ib_device *dev,
+                                      u64 addr,
+                                      size_t size,
+                                      enum dma_data_direction dir)
+{
+}
+
+static void ipath_sync_single_for_device(struct ib_device *dev,
+                                         u64 addr,
+                                         size_t size,
+                                         enum dma_data_direction dir)
+{
+}
+
+static void *ipath_dma_alloc_coherent(struct ib_device *dev, size_t size,
+                                      u64 *dma_handle, gfp_t flag)
+{
+        struct page *p;
+        void *addr = NULL;
+
+        p = alloc_pages(flag, get_order(size));
+        if (p)
+                addr = page_address(p);
+        if (dma_handle)
+                *dma_handle = (u64) addr;
+        return addr;
+}
+
+static void ipath_dma_free_coherent(struct ib_device *dev, size_t size,
+                                    void *cpu_addr, dma_addr_t dma_handle)
+{
+        free_pages((unsigned long) cpu_addr, get_order(size));
+}
+
+struct ib_dma_mapping_ops ipath_dma_mapping_ops = {
+        ipath_mapping_error,
+        ipath_dma_map_single,
+        ipath_dma_unmap_single,
+        ipath_dma_map_page,
+        ipath_dma_unmap_page,
+        ipath_map_sg,
+        ipath_unmap_sg,
+        ipath_sg_dma_address,
+        ipath_sg_dma_len,
+        ipath_sync_single_for_cpu,
+        ipath_sync_single_for_device,
+        ipath_dma_alloc_coherent,
+        ipath_dma_free_coherent
+};
diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 1aeddb48e355..ae7f21a0cdc0 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -1825,8 +1825,6 @@ void ipath_write_kreg_port(const struct ipath_devdata *dd, ipath_kreg regno,
  */
 void ipath_shutdown_device(struct ipath_devdata *dd)
 {
-        u64 val;
-
         ipath_dbg("Shutting down the device\n");
 
         dd->ipath_flags |= IPATH_LINKUNK;
@@ -1849,7 +1847,7 @@ void ipath_shutdown_device(struct ipath_devdata *dd)
          */
         ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, 0ULL);
         /* flush it */
-        val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
+        ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
         /*
          * enough for anything that's going to trickle out to have actually
          * done so.
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 340f27e3ebff..b932bcb67a5e 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -699,7 +699,6 @@ static int ipath_manage_rcvq(struct ipath_portdata *pd, unsigned subport,
                              int start_stop)
 {
         struct ipath_devdata *dd = pd->port_dd;
-        u64 tval;
 
         ipath_cdbg(PROC, "%sabling rcv for unit %u port %u:%u\n",
                    start_stop ? "en" : "dis", dd->ipath_unit,
@@ -729,7 +728,7 @@ static int ipath_manage_rcvq(struct ipath_portdata *pd, unsigned subport,
         ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl,
                          dd->ipath_rcvctrl);
         /* now be sure chip saw it before we return */
-        tval = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
+        ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
         if (start_stop) {
                 /*
                  * And try to be sure that tail reg update has happened too.
@@ -738,7 +737,7 @@ static int ipath_manage_rcvq(struct ipath_portdata *pd, unsigned subport,
                  * in memory copy, since we could overwrite an update by the
                  * chip if we did.
                  */
-                tval = ipath_read_ureg32(dd, ur_rcvhdrtail, pd->port_port);
+                ipath_read_ureg32(dd, ur_rcvhdrtail, pd->port_port);
         }
         /* always; new head should be equal to new tail; see above */
 bail:
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index e57c7a351cb5..7468477ba837 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -1447,7 +1447,7 @@ static void ipath_ht_tidtemplate(struct ipath_devdata *dd)
 static int ipath_ht_early_init(struct ipath_devdata *dd)
 {
         u32 __iomem *piobuf;
-        u32 pioincr, val32, egrsize;
+        u32 pioincr, val32;
         int i;
 
         /*
@@ -1467,7 +1467,6 @@ static int ipath_ht_early_init(struct ipath_devdata *dd)
          * errors interrupts if we ever see one).
          */
         dd->ipath_rcvegrbufsize = dd->ipath_piosize2k;
-        egrsize = dd->ipath_rcvegrbufsize;
 
         /*
          * the min() check here is currently a nop, but it may not
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index 6af89683f710..ae8bf9950c6d 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -602,7 +602,7 @@ static void ipath_pe_init_hwerrors(struct ipath_devdata *dd)
  */
 static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
 {
-        u64 val, tmp, config1, prev_val;
+        u64 val, config1, prev_val;
         int ret = 0;
 
         ipath_dbg("Trying to bringup serdes\n");
@@ -633,7 +633,7 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
                 | INFINIPATH_SERDC0_L1PWR_DN;
         ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val);
         /* be sure chip saw it */
-        tmp = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
+        ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
         udelay(5);              /* need pll reset set at least for a bit */
         /*
          * after PLL is reset, set the per-lane Resets and TxIdle and
@@ -647,7 +647,7 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
                    "and txidle (%llx)\n", (unsigned long long) val);
         ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val);
         /* be sure chip saw it */
-        tmp = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
+        ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
         /* need PLL reset clear for at least 11 usec before lane
          * resets cleared; give it a few more to be sure */
         udelay(15);
@@ -851,12 +851,12 @@ static int ipath_setup_pe_config(struct ipath_devdata *dd,
         int pos, ret;
 
         dd->ipath_msi_lo = 0;   /* used as a flag during reset processing */
-        dd->ipath_irq = pdev->irq;
         ret = pci_enable_msi(dd->pcidev);
         if (ret)
                 ipath_dev_err(dd, "pci_enable_msi failed: %d, "
                               "interrupts may not work\n", ret);
         /* continue even if it fails, we may still be OK... */
+        dd->ipath_irq = pdev->irq;
 
         if ((pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI))) {
                 u16 control;
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c
index d819cca524cd..d4f6b5239ef8 100644
--- a/drivers/infiniband/hw/ipath/ipath_init_chip.c
+++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c
@@ -347,10 +347,9 @@ done:
 static int init_chip_reset(struct ipath_devdata *dd,
                            struct ipath_portdata **pdp)
 {
-        struct ipath_portdata *pd;
         u32 rtmp;
 
-        *pdp = pd = dd->ipath_pd[0];
+        *pdp = dd->ipath_pd[0];
         /* ensure chip does no sends or receives while we re-initialize */
         dd->ipath_control = dd->ipath_sendctrl = dd->ipath_rcvctrl = 0U;
         ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, 0);
diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c
index 5652a550d442..72b9e279d19d 100644
--- a/drivers/infiniband/hw/ipath/ipath_intr.c
+++ b/drivers/infiniband/hw/ipath/ipath_intr.c
@@ -598,10 +598,9 @@ static int handle_errors(struct ipath_devdata *dd, ipath_err_t errs)
          * on close
          */
         if (errs & INFINIPATH_E_RRCVHDRFULL) {
-                int any;
                 u32 hd, tl;
                 ipath_stats.sps_hdrqfull++;
-                for (any = i = 0; i < dd->ipath_cfgports; i++) {
+                for (i = 0; i < dd->ipath_cfgports; i++) {
                         struct ipath_portdata *pd = dd->ipath_pd[i];
                         if (i == 0) {
                                 hd = dd->ipath_port0head;
diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c
index 9a6cbd05adcd..851763d7d2db 100644
--- a/drivers/infiniband/hw/ipath/ipath_keys.c
+++ b/drivers/infiniband/hw/ipath/ipath_keys.c
@@ -134,7 +134,7 @@ int ipath_lkey_ok(struct ipath_qp *qp, struct ipath_sge *isge,
          */
         if (sge->lkey == 0) {
                 isge->mr = NULL;
-                isge->vaddr = bus_to_virt(sge->addr);
+                isge->vaddr = (void *) sge->addr;
                 isge->length = sge->length;
                 isge->sge_length = sge->length;
                 ret = 1;
@@ -202,12 +202,12 @@ int ipath_rkey_ok(struct ipath_qp *qp, struct ipath_sge_state *ss,
         int ret;
 
         /*
-         * We use RKEY == zero for physical addresses
-         * (see ipath_get_dma_mr).
+         * We use RKEY == zero for kernel virtual addresses
+         * (see ipath_get_dma_mr and ipath_dma.c).
          */
         if (rkey == 0) {
                 sge->mr = NULL;
-                sge->vaddr = phys_to_virt(vaddr);
+                sge->vaddr = (void *) vaddr;
                 sge->length = len;
                 sge->sge_length = len;
                 ss->sg_list = NULL;
diff --git a/drivers/infiniband/hw/ipath/ipath_mr.c b/drivers/infiniband/hw/ipath/ipath_mr.c
index a0673c1eef71..8cc8598d6c69 100644
--- a/drivers/infiniband/hw/ipath/ipath_mr.c
+++ b/drivers/infiniband/hw/ipath/ipath_mr.c
@@ -54,6 +54,8 @@ static inline struct ipath_fmr *to_ifmr(struct ib_fmr *ibfmr)
  * @acc: access flags
  *
  * Returns the memory region on success, otherwise returns an errno.
+ * Note that all DMA addresses should be created via the
+ * struct ib_dma_mapping_ops functions (see ipath_dma.c).
  */
 struct ib_mr *ipath_get_dma_mr(struct ib_pd *pd, int acc)
 {
@@ -149,8 +151,7 @@ struct ib_mr *ipath_reg_phys_mr(struct ib_pd *pd,
         m = 0;
         n = 0;
         for (i = 0; i < num_phys_buf; i++) {
-                mr->mr.map[m]->segs[n].vaddr =
-                        phys_to_virt(buffer_list[i].addr);
+                mr->mr.map[m]->segs[n].vaddr = (void *) buffer_list[i].addr;
                 mr->mr.map[m]->segs[n].length = buffer_list[i].size;
                 mr->mr.length += buffer_list[i].size;
                 n++;
@@ -347,7 +348,7 @@ int ipath_map_phys_fmr(struct ib_fmr *ibfmr, u64 * page_list,
         n = 0;
         ps = 1 << fmr->page_shift;
         for (i = 0; i < list_len; i++) {
-                fmr->mr.map[m]->segs[n].vaddr = phys_to_virt(page_list[i]);
+                fmr->mr.map[m]->segs[n].vaddr = (void *) page_list[i];
                 fmr->mr.map[m]->segs[n].length = ps;
                 if (++n == IPATH_SEGSZ) {
                         m++;
diff --git a/drivers/infiniband/hw/ipath/ipath_sysfs.c b/drivers/infiniband/hw/ipath/ipath_sysfs.c
index 182de34f9f47..ffa6318ad0cc 100644
--- a/drivers/infiniband/hw/ipath/ipath_sysfs.c
+++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c
@@ -215,7 +215,6 @@ static ssize_t store_mlid(struct device *dev,
                           size_t count)
 {
         struct ipath_devdata *dd = dev_get_drvdata(dev);
-        int unit;
         u16 mlid;
         int ret;
 
@@ -223,8 +222,6 @@ static ssize_t store_mlid(struct device *dev,
         if (ret < 0 || mlid < IPATH_MULTICAST_LID_BASE)
                 goto invalid;
 
-        unit = dd->ipath_unit;
-
         dd->ipath_mlid = mlid;
 
         goto bail;
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index acdee33ee1f8..2aaacdb7e52a 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -1599,6 +1599,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd)
         dev->detach_mcast = ipath_multicast_detach;
         dev->process_mad = ipath_process_mad;
         dev->mmap = ipath_mmap;
+        dev->dma_ops = &ipath_dma_mapping_ops;
 
         snprintf(dev->node_desc, sizeof(dev->node_desc),
                  IPATH_IDSTR " %s", init_utsname()->nodename);
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h
index 8039f6e5f0c8..c0c8d5b24a7d 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.h
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.h
@@ -812,4 +812,6 @@ extern unsigned int ib_ipath_max_srq_wrs;
 
 extern const u32 ib_ipath_rnr_table[];
 
+extern struct ib_dma_mapping_ops ipath_dma_mapping_ops;
+
 #endif                          /* IPATH_VERBS_H */
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 99547996aba2..07deee8f81ce 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -105,12 +105,12 @@ struct ipoib_mcast;
 
 struct ipoib_rx_buf {
         struct sk_buff *skb;
-        dma_addr_t      mapping;
+        u64             mapping;
 };
 
 struct ipoib_tx_buf {
         struct sk_buff *skb;
-        DECLARE_PCI_UNMAP_ADDR(mapping)
+        u64             mapping;
 };
 
 /*
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index f10fba5d3265..59d9594ed6d9 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -109,9 +109,8 @@ static int ipoib_ib_post_receive(struct net_device *dev, int id)
         ret = ib_post_recv(priv->qp, &param, &bad_wr);
         if (unlikely(ret)) {
                 ipoib_warn(priv, "receive failed for buf %d (%d)\n", id, ret);
-                dma_unmap_single(priv->ca->dma_device,
-                                 priv->rx_ring[id].mapping,
-                                 IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
+                ib_dma_unmap_single(priv->ca, priv->rx_ring[id].mapping,
+                                    IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
                 dev_kfree_skb_any(priv->rx_ring[id].skb);
                 priv->rx_ring[id].skb = NULL;
         }
@@ -123,7 +122,7 @@ static int ipoib_alloc_rx_skb(struct net_device *dev, int id)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         struct sk_buff *skb;
-        dma_addr_t addr;
+        u64 addr;
 
         skb = dev_alloc_skb(IPOIB_BUF_SIZE + 4);
         if (!skb)
@@ -136,10 +135,9 @@ static int ipoib_alloc_rx_skb(struct net_device *dev, int id)
          */
         skb_reserve(skb, 4);
 
-        addr = dma_map_single(priv->ca->dma_device,
-                              skb->data, IPOIB_BUF_SIZE,
-                              DMA_FROM_DEVICE);
-        if (unlikely(dma_mapping_error(addr))) {
+        addr = ib_dma_map_single(priv->ca, skb->data, IPOIB_BUF_SIZE,
+                                 DMA_FROM_DEVICE);
+        if (unlikely(ib_dma_mapping_error(priv->ca, addr))) {
                 dev_kfree_skb_any(skb);
                 return -EIO;
         }
@@ -174,7 +172,7 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         unsigned int wr_id = wc->wr_id & ~IPOIB_OP_RECV;
         struct sk_buff *skb;
-        dma_addr_t addr;
+        u64 addr;
 
         ipoib_dbg_data(priv, "recv completion: id %d, op %d, status: %d\n",
                        wr_id, wc->opcode, wc->status);
@@ -193,8 +191,8 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
                         ipoib_warn(priv, "failed recv event "
                                    "(status=%d, wrid=%d vend_err %x)\n",
                                    wc->status, wr_id, wc->vendor_err);
-                dma_unmap_single(priv->ca->dma_device, addr,
-                                 IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
+                ib_dma_unmap_single(priv->ca, addr,
+                                    IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
                 dev_kfree_skb_any(skb);
                 priv->rx_ring[wr_id].skb = NULL;
                 return;
@@ -212,8 +210,7 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
         ipoib_dbg_data(priv, "received %d bytes, SLID 0x%04x\n",
                        wc->byte_len, wc->slid);
 
-        dma_unmap_single(priv->ca->dma_device, addr,
-                         IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
+        ib_dma_unmap_single(priv->ca, addr, IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
 
         skb_put(skb, wc->byte_len);
         skb_pull(skb, IB_GRH_BYTES);
@@ -261,10 +258,8 @@ static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
 
         tx_req = &priv->tx_ring[wr_id];
 
-        dma_unmap_single(priv->ca->dma_device,
-                         pci_unmap_addr(tx_req, mapping),
-                         tx_req->skb->len,
-                         DMA_TO_DEVICE);
+        ib_dma_unmap_single(priv->ca, tx_req->mapping,
+                            tx_req->skb->len, DMA_TO_DEVICE);
 
         ++priv->stats.tx_packets;
         priv->stats.tx_bytes += tx_req->skb->len;
@@ -311,7 +306,7 @@ void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr)
 static inline int post_send(struct ipoib_dev_priv *priv,
                             unsigned int wr_id,
                             struct ib_ah *address, u32 qpn,
-                            dma_addr_t addr, int len)
+                            u64 addr, int len)
 {
         struct ib_send_wr *bad_wr;
 
@@ -330,7 +325,7 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         struct ipoib_tx_buf *tx_req;
-        dma_addr_t addr;
+        u64 addr;
 
         if (unlikely(skb->len > dev->mtu + INFINIBAND_ALEN)) {
                 ipoib_warn(priv, "packet len %d (> %d) too long to send, dropping\n",
@@ -353,21 +348,20 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
          */
         tx_req = &priv->tx_ring[priv->tx_head & (ipoib_sendq_size - 1)];
         tx_req->skb = skb;
-        addr = dma_map_single(priv->ca->dma_device, skb->data, skb->len,
-                              DMA_TO_DEVICE);
-        if (unlikely(dma_mapping_error(addr))) {
+        addr = ib_dma_map_single(priv->ca, skb->data, skb->len,
+                                 DMA_TO_DEVICE);
+        if (unlikely(ib_dma_mapping_error(priv->ca, addr))) {
                 ++priv->stats.tx_errors;
                 dev_kfree_skb_any(skb);
                 return;
         }
-        pci_unmap_addr_set(tx_req, mapping, addr);
+        tx_req->mapping = addr;
 
         if (unlikely(post_send(priv, priv->tx_head & (ipoib_sendq_size - 1),
                                address->ah, qpn, addr, skb->len))) {
                 ipoib_warn(priv, "post_send failed\n");
                 ++priv->stats.tx_errors;
-                dma_unmap_single(priv->ca->dma_device, addr, skb->len,
-                                 DMA_TO_DEVICE);
+                ib_dma_unmap_single(priv->ca, addr, skb->len, DMA_TO_DEVICE);
                 dev_kfree_skb_any(skb);
         } else {
                 dev->trans_start = jiffies;
@@ -538,24 +532,27 @@ int ipoib_ib_dev_stop(struct net_device *dev)
                         while ((int) priv->tx_tail - (int) priv->tx_head < 0) {
                                 tx_req = &priv->tx_ring[priv->tx_tail &
                                                         (ipoib_sendq_size - 1)];
-                                dma_unmap_single(priv->ca->dma_device,
-                                                 pci_unmap_addr(tx_req, mapping),
-                                                 tx_req->skb->len,
-                                                 DMA_TO_DEVICE);
+                                ib_dma_unmap_single(priv->ca,
+                                                    tx_req->mapping,
+                                                    tx_req->skb->len,
+                                                    DMA_TO_DEVICE);
                                 dev_kfree_skb_any(tx_req->skb);
                                 ++priv->tx_tail;
                         }
 
-                        for (i = 0; i < ipoib_recvq_size; ++i)
-                                if (priv->rx_ring[i].skb) {
-                                        dma_unmap_single(priv->ca->dma_device,
-                                                         pci_unmap_addr(&priv->rx_ring[i],
-                                                                        mapping),
-                                                         IPOIB_BUF_SIZE,
-                                                         DMA_FROM_DEVICE);
-                                        dev_kfree_skb_any(priv->rx_ring[i].skb);
-                                        priv->rx_ring[i].skb = NULL;
-                                }
+                        for (i = 0; i < ipoib_recvq_size; ++i) {
+                                struct ipoib_rx_buf *rx_req;
+
+                                rx_req = &priv->rx_ring[i];
+                                if (!rx_req->skb)
+                                        continue;
+                                ib_dma_unmap_single(priv->ca,
+                                                    rx_req->mapping,
+                                                    IPOIB_BUF_SIZE,
+                                                    DMA_FROM_DEVICE);
+                                dev_kfree_skb_any(rx_req->skb);
+                                rx_req->skb = NULL;
+                        }
 
                         goto timeout;
                 }
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index c09280243726..705eb1d0e554 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -497,8 +497,6 @@ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev)
                 return;
         }
 
-        skb_queue_head_init(&neigh->queue);
-
         /*
          * We can only be called from ipoib_start_xmit, so we're
          * inside tx_lock -- no need to save/restore flags.
@@ -806,6 +804,7 @@ struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neighbour)
 
         neigh->neighbour = neighbour;
         *to_ipoib_neigh(neighbour) = neigh;
+        skb_queue_head_init(&neigh->queue);
 
         return neigh;
 }
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h
index 234e5b061a75..cae8c96a55f8 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -182,7 +182,7 @@ struct iser_regd_buf {
         struct iser_mem_reg     reg;        /* memory registration info        */
         void                    *virt_addr;
         struct iser_device      *device;    /* device->device for dma_unmap    */
-        dma_addr_t              dma_addr;   /* if non zero, addr for dma_unmap */
+        u64                     dma_addr;   /* if non zero, addr for dma_unmap */
         enum dma_data_direction direction;  /* direction for dma_unmap         */
         unsigned int            data_size;
         atomic_t                ref_count;  /* refcount, freed when dec to 0   */
diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c b/drivers/infiniband/ulp/iser/iser_initiator.c
index 9b3d79c796c8..e73c87b9be43 100644
--- a/drivers/infiniband/ulp/iser/iser_initiator.c
+++ b/drivers/infiniband/ulp/iser/iser_initiator.c
@@ -487,10 +487,8 @@ int iser_send_control(struct iscsi_conn *conn,
         struct iscsi_iser_conn *iser_conn = conn->dd_data;
         struct iser_desc *mdesc = mtask->dd_data;
         struct iser_dto *send_dto = NULL;
-        unsigned int itt;
         unsigned long data_seg_len;
         int err = 0;
-        unsigned char opcode;
         struct iser_regd_buf *regd_buf;
         struct iser_device *device;
 
@@ -512,8 +510,6 @@ int iser_send_control(struct iscsi_conn *conn,
 
         iser_reg_single(device, send_dto->regd[0], DMA_TO_DEVICE);
 
-        itt = ntohl(mtask->hdr->itt);
-        opcode = mtask->hdr->opcode & ISCSI_OPCODE_MASK;
         data_seg_len = ntoh24(mtask->hdr->dlength);
 
         if (data_seg_len > 0) {
diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c
index 3aedd59b8a84..fc9f1fd0ae54 100644
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -52,7 +52,7 @@
  */
 int iser_regd_buff_release(struct iser_regd_buf *regd_buf)
 {
-        struct device *dma_device;
+        struct ib_device *dev;
 
         if ((atomic_read(&regd_buf->ref_count) == 0) ||
             atomic_dec_and_test(&regd_buf->ref_count)) {
@@ -61,8 +61,8 @@ int iser_regd_buff_release(struct iser_regd_buf *regd_buf)
                         iser_unreg_mem(&regd_buf->reg);
 
                 if (regd_buf->dma_addr) {
-                        dma_device = regd_buf->device->ib_device->dma_device;
-                        dma_unmap_single(dma_device,
+                        dev = regd_buf->device->ib_device;
+                        ib_dma_unmap_single(dev,
                                          regd_buf->dma_addr,
                                          regd_buf->data_size,
                                          regd_buf->direction);
@@ -84,12 +84,12 @@ void iser_reg_single(struct iser_device *device,
                      struct iser_regd_buf *regd_buf,
                      enum dma_data_direction direction)
 {
-        dma_addr_t dma_addr;
+        u64 dma_addr;
 
-        dma_addr  = dma_map_single(device->ib_device->dma_device,
-                                   regd_buf->virt_addr,
-                                   regd_buf->data_size, direction);
-        BUG_ON(dma_mapping_error(dma_addr));
+        dma_addr = ib_dma_map_single(device->ib_device,
+                                     regd_buf->virt_addr,
+                                     regd_buf->data_size, direction);
+        BUG_ON(ib_dma_mapping_error(device->ib_device, dma_addr));
 
         regd_buf->reg.lkey = device->mr->lkey;
         regd_buf->reg.len  = regd_buf->data_size;
@@ -107,7 +107,7 @@ int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task  *iser_ctask,
                                  enum iser_data_dir cmd_dir)
 {
         int dma_nents;
-        struct device *dma_device;
+        struct ib_device *dev;
         char *mem = NULL;
         struct iser_data_buf *data = &iser_ctask->data[cmd_dir];
         unsigned long  cmd_data_len = data->data_len;
@@ -147,17 +147,12 @@ int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task  *iser_ctask,
 
         iser_ctask->data_copy[cmd_dir].copy_buf  = mem;
 
-        dma_device = iser_ctask->iser_conn->ib_conn->device->ib_device->dma_device;
-
-        if (cmd_dir == ISER_DIR_OUT)
-                dma_nents = dma_map_sg(dma_device,
-                                       &iser_ctask->data_copy[cmd_dir].sg_single,
-                                       1, DMA_TO_DEVICE);
-        else
-                dma_nents = dma_map_sg(dma_device,
-                                       &iser_ctask->data_copy[cmd_dir].sg_single,
-                                       1, DMA_FROM_DEVICE);
-
+        dev = iser_ctask->iser_conn->ib_conn->device->ib_device;
+        dma_nents = ib_dma_map_sg(dev,
+                                  &iser_ctask->data_copy[cmd_dir].sg_single,
+                                  1,
+                                  (cmd_dir == ISER_DIR_OUT) ?
+                                  DMA_TO_DEVICE : DMA_FROM_DEVICE);
         BUG_ON(dma_nents == 0);
 
         iser_ctask->data_copy[cmd_dir].dma_nents = dma_nents;
@@ -170,19 +165,16 @@ int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task  *iser_ctask,
 void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
                                      enum iser_data_dir         cmd_dir)
 {
-        struct device *dma_device;
+        struct ib_device *dev;
         struct iser_data_buf *mem_copy;
         unsigned long  cmd_data_len;
 
-        dma_device = iser_ctask->iser_conn->ib_conn->device->ib_device->dma_device;
-        mem_copy   = &iser_ctask->data_copy[cmd_dir];
+        dev = iser_ctask->iser_conn->ib_conn->device->ib_device;
+        mem_copy = &iser_ctask->data_copy[cmd_dir];
 
-        if (cmd_dir == ISER_DIR_OUT)
-                dma_unmap_sg(dma_device, &mem_copy->sg_single, 1,
-                             DMA_TO_DEVICE);
-        else
-                dma_unmap_sg(dma_device, &mem_copy->sg_single, 1,
-                             DMA_FROM_DEVICE);
+        ib_dma_unmap_sg(dev, &mem_copy->sg_single, 1,
+                        (cmd_dir == ISER_DIR_OUT) ?
+                        DMA_TO_DEVICE : DMA_FROM_DEVICE);
 
         if (cmd_dir == ISER_DIR_IN) {
                 char *mem;
@@ -231,11 +223,12 @@ void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
  * consecutive elements. Also, it handles one entry SG.
  */
 static int iser_sg_to_page_vec(struct iser_data_buf *data,
-                               struct iser_page_vec *page_vec)
+                               struct iser_page_vec *page_vec,
+                               struct ib_device *ibdev)
 {
         struct scatterlist *sg = (struct scatterlist *)data->buf;
-        dma_addr_t first_addr, last_addr, page;
-        int start_aligned, end_aligned;
+        u64 first_addr, last_addr, page;
+        int end_aligned;
         unsigned int cur_page = 0;
         unsigned long total_sz = 0;
         int i;
@@ -244,19 +237,21 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data,
         page_vec->offset = (u64) sg[0].offset & ~MASK_4K;
 
         for (i = 0; i < data->dma_nents; i++) {
-                total_sz += sg_dma_len(&sg[i]);
+                unsigned int dma_len = ib_sg_dma_len(ibdev, &sg[i]);
+
+                total_sz += dma_len;
 
-                first_addr = sg_dma_address(&sg[i]);
-                last_addr  = first_addr + sg_dma_len(&sg[i]);
+                first_addr = ib_sg_dma_address(ibdev, &sg[i]);
+                last_addr  = first_addr + dma_len;
 
-                start_aligned = !(first_addr & ~MASK_4K);
                 end_aligned   = !(last_addr  & ~MASK_4K);
 
                 /* continue to collect page fragments till aligned or SG ends */
                 while (!end_aligned && (i + 1 < data->dma_nents)) {
                         i++;
-                        total_sz += sg_dma_len(&sg[i]);
-                        last_addr = sg_dma_address(&sg[i]) + sg_dma_len(&sg[i]);
+                        dma_len = ib_sg_dma_len(ibdev, &sg[i]);
+                        total_sz += dma_len;
+                        last_addr = ib_sg_dma_address(ibdev, &sg[i]) + dma_len;
                         end_aligned = !(last_addr  & ~MASK_4K);
                 }
 
@@ -288,10 +283,11 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data,
  * the number of entries which are aligned correctly. Supports the case where
  * consecutive SG elements are actually fragments of the same physcial page.
  */
-static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data)
+static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data,
+                                              struct ib_device *ibdev)
 {
         struct scatterlist *sg;
-        dma_addr_t end_addr, next_addr;
+        u64 end_addr, next_addr;
         int i, cnt;
         unsigned int ret_len = 0;
 
@@ -303,12 +299,12 @@ static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data)
                    (unsigned long)page_to_phys(sg[i].page),
                    (unsigned long)sg[i].offset,
                    (unsigned long)sg[i].length); */
-                end_addr = sg_dma_address(&sg[i]) +
-                           sg_dma_len(&sg[i]);
+                end_addr = ib_sg_dma_address(ibdev, &sg[i]) +
+                           ib_sg_dma_len(ibdev, &sg[i]);
                 /* iser_dbg("Checking sg iobuf end address "
                        "0x%08lX\n", end_addr); */
                 if (i + 1 < data->dma_nents) {
-                        next_addr = sg_dma_address(&sg[i+1]);
+                        next_addr = ib_sg_dma_address(ibdev, &sg[i+1]);
                         /* are i, i+1 fragments of the same page? */
                         if (end_addr == next_addr)
                                 continue;
@@ -325,7 +321,8 @@ static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data)
         return ret_len;
 }
 
-static void iser_data_buf_dump(struct iser_data_buf *data)
+static void iser_data_buf_dump(struct iser_data_buf *data,
+                               struct ib_device *ibdev)
 {
         struct scatterlist *sg = (struct scatterlist *)data->buf;
         int i;
@@ -333,9 +330,9 @@ static void iser_data_buf_dump(struct iser_data_buf *data)
         for (i = 0; i < data->dma_nents; i++)
                 iser_err("sg[%d] dma_addr:0x%lX page:0x%p "
                          "off:0x%x sz:0x%x dma_len:0x%x\n",
-                         i, (unsigned long)sg_dma_address(&sg[i]),
+                         i, (unsigned long)ib_sg_dma_address(ibdev, &sg[i]),
                          sg[i].page, sg[i].offset,
-                         sg[i].length,sg_dma_len(&sg[i]));
+                         sg[i].length, ib_sg_dma_len(ibdev, &sg[i]));
 }
 
 static void iser_dump_page_vec(struct iser_page_vec *page_vec)
@@ -349,7 +346,8 @@ static void iser_dump_page_vec(struct iser_page_vec *page_vec)
 }
 
 static void iser_page_vec_build(struct iser_data_buf *data,
-                                struct iser_page_vec *page_vec)
+                                struct iser_page_vec *page_vec,
+                                struct ib_device *ibdev)
 {
         int page_vec_len = 0;
 
@@ -357,14 +355,14 @@ static void iser_page_vec_build(struct iser_data_buf *data,
         page_vec->offset = 0;
 
         iser_dbg("Translating sg sz: %d\n", data->dma_nents);
-        page_vec_len = iser_sg_to_page_vec(data,page_vec);
+        page_vec_len = iser_sg_to_page_vec(data, page_vec, ibdev);
         iser_dbg("sg len %d page_vec_len %d\n", data->dma_nents,page_vec_len);
 
         page_vec->length = page_vec_len;
 
         if (page_vec_len * SIZE_4K < page_vec->data_size) {
                 iser_err("page_vec too short to hold this SG\n");
-                iser_data_buf_dump(data);
+                iser_data_buf_dump(data, ibdev);
                 iser_dump_page_vec(page_vec);
                 BUG();
         }
@@ -375,13 +373,12 @@ int iser_dma_map_task_data(struct iscsi_iser_cmd_task *iser_ctask,
                             enum   iser_data_dir       iser_dir,
                             enum   dma_data_direction  dma_dir)
 {
-        struct device *dma_device;
+        struct ib_device *dev;
 
         iser_ctask->dir[iser_dir] = 1;
-        dma_device =
-                iser_ctask->iser_conn->ib_conn->device->ib_device->dma_device;
+        dev = iser_ctask->iser_conn->ib_conn->device->ib_device;
 
-        data->dma_nents = dma_map_sg(dma_device, data->buf, data->size, dma_dir);
+        data->dma_nents = ib_dma_map_sg(dev, data->buf, data->size, dma_dir);
         if (data->dma_nents == 0) {
                 iser_err("dma_map_sg failed!!!\n");
                 return -EINVAL;
@@ -391,20 +388,19 @@ int iser_dma_map_task_data(struct iscsi_iser_cmd_task *iser_ctask,
 
 void iser_dma_unmap_task_data(struct iscsi_iser_cmd_task *iser_ctask)
 {
-        struct device  *dma_device;
+        struct ib_device *dev;
         struct iser_data_buf *data;
 
-        dma_device =
-                iser_ctask->iser_conn->ib_conn->device->ib_device->dma_device;
+        dev = iser_ctask->iser_conn->ib_conn->device->ib_device;
 
         if (iser_ctask->dir[ISER_DIR_IN]) {
                 data = &iser_ctask->data[ISER_DIR_IN];
-                dma_unmap_sg(dma_device, data->buf, data->size, DMA_FROM_DEVICE);
+                ib_dma_unmap_sg(dev, data->buf, data->size, DMA_FROM_DEVICE);
         }
 
         if (iser_ctask->dir[ISER_DIR_OUT]) {
                 data = &iser_ctask->data[ISER_DIR_OUT];
-                dma_unmap_sg(dma_device, data->buf, data->size, DMA_TO_DEVICE);
+                ib_dma_unmap_sg(dev, data->buf, data->size, DMA_TO_DEVICE);
         }
 }
 
@@ -419,6 +415,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
 {
         struct iser_conn     *ib_conn = iser_ctask->iser_conn->ib_conn;
         struct iser_device   *device = ib_conn->device;
+        struct ib_device     *ibdev = device->ib_device;
         struct iser_data_buf *mem = &iser_ctask->data[cmd_dir];
         struct iser_regd_buf *regd_buf;
         int aligned_len;
@@ -428,11 +425,11 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
 
         regd_buf = &iser_ctask->rdma_regd[cmd_dir];
 
-        aligned_len = iser_data_buf_aligned_len(mem);
+        aligned_len = iser_data_buf_aligned_len(mem, ibdev);
         if (aligned_len != mem->dma_nents) {
                 iser_err("rdma alignment violation %d/%d aligned\n",
                          aligned_len, mem->size);
-                iser_data_buf_dump(mem);
+                iser_data_buf_dump(mem, ibdev);
 
                 /* unmap the command data before accessing it */
                 iser_dma_unmap_task_data(iser_ctask);
@@ -450,8 +447,8 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
 
                 regd_buf->reg.lkey = device->mr->lkey;
                 regd_buf->reg.rkey = device->mr->rkey;
-                regd_buf->reg.len  = sg_dma_len(&sg[0]);
-                regd_buf->reg.va   = sg_dma_address(&sg[0]);
+                regd_buf->reg.len  = ib_sg_dma_len(ibdev, &sg[0]);
+                regd_buf->reg.va   = ib_sg_dma_address(ibdev, &sg[0]);
                 regd_buf->reg.is_fmr = 0;
 
                 iser_dbg("PHYSICAL Mem.register: lkey: 0x%08X rkey: 0x%08X  "
@@ -461,10 +458,10 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
                          (unsigned long)regd_buf->reg.va,
                          (unsigned long)regd_buf->reg.len);
         } else { /* use FMR for multiple dma entries */
-                iser_page_vec_build(mem, ib_conn->page_vec);
+                iser_page_vec_build(mem, ib_conn->page_vec, ibdev);
                 err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, &regd_buf->reg);
                 if (err) {
-                        iser_data_buf_dump(mem);
+                        iser_data_buf_dump(mem, ibdev);
                         iser_err("mem->dma_nents = %d (dlength = 0x%x)\n", mem->dma_nents,
                                  ntoh24(iser_ctask->desc.iscsi_header.dlength));
                         iser_err("page_vec: data_size = 0x%x, length = %d, offset = 0x%x\n",
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index a6289595557b..e9b6a6f07dd7 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -122,9 +122,8 @@ static struct srp_iu *srp_alloc_iu(struct srp_host *host, size_t size,
         if (!iu->buf)
                 goto out_free_iu;
 
-        iu->dma = dma_map_single(host->dev->dev->dma_device,
-                                 iu->buf, size, direction);
-        if (dma_mapping_error(iu->dma))
+        iu->dma = ib_dma_map_single(host->dev->dev, iu->buf, size, direction);
+        if (ib_dma_mapping_error(host->dev->dev, iu->dma))
                 goto out_free_buf;
 
         iu->size      = size;
@@ -145,8 +144,7 @@ static void srp_free_iu(struct srp_host *host, struct srp_iu *iu)
         if (!iu)
                 return;
 
-        dma_unmap_single(host->dev->dev->dma_device,
-                         iu->dma, iu->size, iu->direction);
+        ib_dma_unmap_single(host->dev->dev, iu->dma, iu->size, iu->direction);
         kfree(iu->buf);
         kfree(iu);
 }
@@ -482,8 +480,8 @@ static void srp_unmap_data(struct scsi_cmnd *scmnd,
                 scat  = &req->fake_sg;
         }
 
-        dma_unmap_sg(target->srp_host->dev->dev->dma_device, scat, nents,
-                     scmnd->sc_data_direction);
+        ib_dma_unmap_sg(target->srp_host->dev->dev, scat, nents,
+                        scmnd->sc_data_direction);
 }
 
 static void srp_remove_req(struct srp_target_port *target, struct srp_request *req)
@@ -595,23 +593,26 @@ static int srp_map_fmr(struct srp_target_port *target, struct scatterlist *scat,
         int i, j;
         int ret;
         struct srp_device *dev = target->srp_host->dev;
+        struct ib_device *ibdev = dev->dev;
 
         if (!dev->fmr_pool)
                 return -ENODEV;
 
-        if ((sg_dma_address(&scat[0]) & ~dev->fmr_page_mask) &&
+        if ((ib_sg_dma_address(ibdev, &scat[0]) & ~dev->fmr_page_mask) &&
             mellanox_workarounds && !memcmp(&target->ioc_guid, mellanox_oui, 3))
                 return -EINVAL;
 
         len = page_cnt = 0;
         for (i = 0; i < sg_cnt; ++i) {
-                if (sg_dma_address(&scat[i]) & ~dev->fmr_page_mask) {
+                unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
+
+                if (ib_sg_dma_address(ibdev, &scat[i]) & ~dev->fmr_page_mask) {
                         if (i > 0)
                                 return -EINVAL;
                         else
                                 ++page_cnt;
                 }
-                if ((sg_dma_address(&scat[i]) + sg_dma_len(&scat[i])) &
+                if ((ib_sg_dma_address(ibdev, &scat[i]) + dma_len) &
                     ~dev->fmr_page_mask) {
                         if (i < sg_cnt - 1)
                                 return -EINVAL;
@@ -619,7 +620,7 @@ static int srp_map_fmr(struct srp_target_port *target, struct scatterlist *scat,
                                 ++page_cnt;
                 }
 
-                len += sg_dma_len(&scat[i]);
+                len += dma_len;
         }
 
         page_cnt += len >> dev->fmr_page_shift;
@@ -631,10 +632,14 @@ static int srp_map_fmr(struct srp_target_port *target, struct scatterlist *scat,
                 return -ENOMEM;
 
         page_cnt = 0;
-        for (i = 0; i < sg_cnt; ++i)
-                for (j = 0; j < sg_dma_len(&scat[i]); j += dev->fmr_page_size)
+        for (i = 0; i < sg_cnt; ++i) {
+                unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
+
+                for (j = 0; j < dma_len; j += dev->fmr_page_size)
                         dma_pages[page_cnt++] =
-                                (sg_dma_address(&scat[i]) & dev->fmr_page_mask) + j;
+                                (ib_sg_dma_address(ibdev, &scat[i]) &
+                                 dev->fmr_page_mask) + j;
+        }
 
         req->fmr = ib_fmr_pool_map_phys(dev->fmr_pool,
                                         dma_pages, page_cnt, io_addr);
@@ -644,7 +649,8 @@ static int srp_map_fmr(struct srp_target_port *target, struct scatterlist *scat,
                 goto out;
         }
 
-        buf->va  = cpu_to_be64(sg_dma_address(&scat[0]) & ~dev->fmr_page_mask);
+        buf->va  = cpu_to_be64(ib_sg_dma_address(ibdev, &scat[0]) &
+                               ~dev->fmr_page_mask);
         buf->key = cpu_to_be32(req->fmr->fmr->rkey);
         buf->len = cpu_to_be32(len);
 
@@ -663,6 +669,8 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
         struct srp_cmd *cmd = req->cmd->buf;
         int len, nents, count;
         u8 fmt = SRP_DATA_DESC_DIRECT;
+        struct srp_device *dev;
+        struct ib_device *ibdev;
 
         if (!scmnd->request_buffer || scmnd->sc_data_direction == DMA_NONE)
                 return sizeof (struct srp_cmd);
@@ -687,8 +695,10 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
                 sg_init_one(scat, scmnd->request_buffer, scmnd->request_bufflen);
         }
 
-        count = dma_map_sg(target->srp_host->dev->dev->dma_device,
-                           scat, nents, scmnd->sc_data_direction);
+        dev = target->srp_host->dev;
+        ibdev = dev->dev;
+
+        count = ib_dma_map_sg(ibdev, scat, nents, scmnd->sc_data_direction);
 
         fmt = SRP_DATA_DESC_DIRECT;
         len = sizeof (struct srp_cmd) + sizeof (struct srp_direct_buf);
@@ -702,9 +712,9 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
                  */
                 struct srp_direct_buf *buf = (void *) cmd->add_data;
 
-                buf->va  = cpu_to_be64(sg_dma_address(scat));
-                buf->key = cpu_to_be32(target->srp_host->dev->mr->rkey);
-                buf->len = cpu_to_be32(sg_dma_len(scat));
+                buf->va  = cpu_to_be64(ib_sg_dma_address(ibdev, scat));
+                buf->key = cpu_to_be32(dev->mr->rkey);
+                buf->len = cpu_to_be32(ib_sg_dma_len(ibdev, scat));
         } else if (srp_map_fmr(target, scat, count, req,
                                (void *) cmd->add_data)) {
                 /*
@@ -722,13 +732,14 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
                         count * sizeof (struct srp_direct_buf);
 
                 for (i = 0; i < count; ++i) {
+                        unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
+
                         buf->desc_list[i].va  =
-                                cpu_to_be64(sg_dma_address(&scat[i]));
+                                cpu_to_be64(ib_sg_dma_address(ibdev, &scat[i]));
                         buf->desc_list[i].key =
-                                cpu_to_be32(target->srp_host->dev->mr->rkey);
-                        buf->desc_list[i].len =
-                                cpu_to_be32(sg_dma_len(&scat[i]));
-                        datalen += sg_dma_len(&scat[i]);
+                                cpu_to_be32(dev->mr->rkey);
+                        buf->desc_list[i].len = cpu_to_be32(dma_len);
+                        datalen += dma_len;
                 }
 
                 if (scmnd->sc_data_direction == DMA_TO_DEVICE)
@@ -808,13 +819,15 @@ static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp)
 
 static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
 {
+        struct ib_device *dev;
         struct srp_iu *iu;
         u8 opcode;
 
         iu = target->rx_ring[wc->wr_id & ~SRP_OP_RECV];
 
-        dma_sync_single_for_cpu(target->srp_host->dev->dev->dma_device, iu->dma,
-                                target->max_ti_iu_len, DMA_FROM_DEVICE);
+        dev = target->srp_host->dev->dev;
+        ib_dma_sync_single_for_cpu(dev, iu->dma, target->max_ti_iu_len,
+                                   DMA_FROM_DEVICE);
 
         opcode = *(u8 *) iu->buf;
 
@@ -850,8 +863,8 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
                 break;
         }
 
-        dma_sync_single_for_device(target->srp_host->dev->dev->dma_device, iu->dma,
-                                   target->max_ti_iu_len, DMA_FROM_DEVICE);
+        ib_dma_sync_single_for_device(dev, iu->dma, target->max_ti_iu_len,
+                                      DMA_FROM_DEVICE);
 }
 
 static void srp_completion(struct ib_cq *cq, void *target_ptr)
@@ -969,6 +982,7 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
         struct srp_request *req;
         struct srp_iu *iu;
         struct srp_cmd *cmd;
+        struct ib_device *dev;
         int len;
 
         if (target->state == SRP_TARGET_CONNECTING)
@@ -985,8 +999,9 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
         if (!iu)
                 goto err;
 
-        dma_sync_single_for_cpu(target->srp_host->dev->dev->dma_device, iu->dma,
-                                srp_max_iu_len, DMA_TO_DEVICE);
+        dev = target->srp_host->dev->dev;
+        ib_dma_sync_single_for_cpu(dev, iu->dma, srp_max_iu_len,
+                                   DMA_TO_DEVICE);
 
         req = list_entry(target->free_reqs.next, struct srp_request, list);
 
@@ -1018,8 +1033,8 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
                 goto err_unmap;
         }
 
-        dma_sync_single_for_device(target->srp_host->dev->dev->dma_device, iu->dma,
-                                   srp_max_iu_len, DMA_TO_DEVICE);
+        ib_dma_sync_single_for_device(dev, iu->dma, srp_max_iu_len,
+                                      DMA_TO_DEVICE);
 
         if (__srp_post_send(target, iu, len)) {
                 printk(KERN_ERR PFX "Send failed\n");
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index d4e35ef51374..868a540ef7cd 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -161,7 +161,7 @@ struct srp_target_port {
 };
 
 struct srp_iu {
-        dma_addr_t              dma;
+        u64                     dma;
         void                   *buf;
         size_t                  size;
         enum dma_data_direction direction;
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 3d5f19658032..6b46c9bf1d20 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -146,7 +146,7 @@ config TOUCHSCREEN_TOUCHWIN
 
 config TOUCHSCREEN_UCB1400
         tristate "Philips UCB1400 touchscreen"
-        depends on SND_AC97_BUS
+        select AC97_BUS
         help
           This enables support for the Philips UCB1400 touchscreen interface.
           The UCB1400 is an AC97 audio codec.  The touchscreen interface
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 176142c61492..7399ba791116 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -12,7 +12,7 @@ config NEW_LEDS
 
 config LEDS_CLASS
         tristate "LED Class Support"
-        depends NEW_LEDS
+        depends on NEW_LEDS
         help
           This option enables the led sysfs class in /sys/class/leds.  You'll
           need this to do anything useful with LEDs.  If unsure, say N.
@@ -21,28 +21,28 @@ comment "LED drivers"
 
 config LEDS_CORGI
         tristate "LED Support for the Sharp SL-C7x0 series"
-        depends LEDS_CLASS && PXA_SHARP_C7xx
+        depends on LEDS_CLASS && PXA_SHARP_C7xx
         help
           This option enables support for the LEDs on Sharp Zaurus
           SL-C7x0 series (C700, C750, C760, C860).
 
 config LEDS_LOCOMO
         tristate "LED Support for Locomo device"
-        depends LEDS_CLASS && SHARP_LOCOMO
+        depends on LEDS_CLASS && SHARP_LOCOMO
         help
           This option enables support for the LEDs on Sharp Locomo.
           Zaurus models SL-5500 and SL-5600.
 
 config LEDS_SPITZ
         tristate "LED Support for the Sharp SL-Cxx00 series"
-        depends LEDS_CLASS && PXA_SHARP_Cxx00
+        depends on LEDS_CLASS && PXA_SHARP_Cxx00
         help
           This option enables support for the LEDs on Sharp Zaurus
           SL-Cxx00 series (C1000, C3000, C3100).
 
 config LEDS_IXP4XX
         tristate "LED Support for GPIO connected LEDs on IXP4XX processors"
-        depends LEDS_CLASS && ARCH_IXP4XX
+        depends on LEDS_CLASS && ARCH_IXP4XX
         help
           This option enables support for the LEDs connected to GPIO
           outputs of the Intel IXP4XX processors.  To be useful the
@@ -51,7 +51,7 @@ config LEDS_IXP4XX
 
 config LEDS_TOSA
         tristate "LED Support for the Sharp SL-6000 series"
-        depends LEDS_CLASS && PXA_SHARPSL
+        depends on LEDS_CLASS && PXA_SHARPSL
         help
           This option enables support for the LEDs on Sharp Zaurus
           SL-6000 series.
@@ -65,7 +65,7 @@ config LEDS_S3C24XX
 
 config LEDS_AMS_DELTA
         tristate "LED Support for the Amstrad Delta (E3)"
-        depends LEDS_CLASS && MACH_AMS_DELTA
+        depends on LEDS_CLASS && MACH_AMS_DELTA
         help
           This option enables support for the LEDs on Amstrad Delta (E3).
 
@@ -86,7 +86,7 @@ comment "LED Triggers"
 
 config LEDS_TRIGGERS
         bool "LED Trigger support"
-        depends NEW_LEDS
+        depends on NEW_LEDS
         help
           This option enables trigger support for the leds class.
           These triggers allow kernel events to drive the LEDs and can
@@ -94,21 +94,21 @@ config LEDS_TRIGGERS
 
 config LEDS_TRIGGER_TIMER
         tristate "LED Timer Trigger"
-        depends LEDS_TRIGGERS
+        depends on LEDS_TRIGGERS
         help
           This allows LEDs to be controlled by a programmable timer
           via sysfs. If unsure, say Y.
 
 config LEDS_TRIGGER_IDE_DISK
         bool "LED IDE Disk Trigger"
-        depends LEDS_TRIGGERS && BLK_DEV_IDEDISK
+        depends on LEDS_TRIGGERS && BLK_DEV_IDEDISK
         help
           This allows LEDs to be controlled by IDE disk activity.
           If unsure, say Y.
 
 config LEDS_TRIGGER_HEARTBEAT
         tristate "LED Heartbeat Trigger"
-        depends LEDS_TRIGGERS
+        depends on LEDS_TRIGGERS
         help
           This allows LEDs to be controlled by a CPU load average.
           The flash frequency is a hyperbolic function of the 1-minute
diff --git a/drivers/media/dvb/pluto2/pluto2.c b/drivers/media/dvb/pluto2/pluto2.c
index 8e4ce101eb22..ffda71dfdd65 100644
--- a/drivers/media/dvb/pluto2/pluto2.c
+++ b/drivers/media/dvb/pluto2/pluto2.c
@@ -650,7 +650,7 @@ static int __devinit pluto2_probe(struct pci_dev *pdev,
         /* dvb */
         ret = dvb_register_adapter(&pluto->dvb_adapter, DRIVER_NAME, THIS_MODULE, &pdev->dev);
         if (ret < 0)
-                goto err_i2c_bit_del_bus;
+                goto err_i2c_del_adapter;
 
         dvb_adapter = &pluto->dvb_adapter;
 
@@ -712,8 +712,8 @@ err_dvb_dmx_release:
         dvb_dmx_release(dvbdemux);
 err_dvb_unregister_adapter:
         dvb_unregister_adapter(dvb_adapter);
-err_i2c_bit_del_bus:
-        i2c_bit_del_bus(&pluto->i2c_adap);
+err_i2c_del_adapter:
+        i2c_del_adapter(&pluto->i2c_adap);
 err_pluto_hw_exit:
         pluto_hw_exit(pluto);
 err_free_irq:
@@ -748,7 +748,7 @@ static void __devexit pluto2_remove(struct pci_dev *pdev)
         dvb_dmxdev_release(&pluto->dmxdev);
         dvb_dmx_release(dvbdemux);
         dvb_unregister_adapter(dvb_adapter);
-        i2c_bit_del_bus(&pluto->i2c_adap);
+        i2c_del_adapter(&pluto->i2c_adap);
         pluto_hw_exit(pluto);
         free_irq(pdev->irq, pluto);
         pci_iounmap(pdev, pluto->io_mem);
diff --git a/drivers/media/video/bt8xx/bttv-i2c.c b/drivers/media/video/bt8xx/bttv-i2c.c
index 70de6c96e201..62b873076e09 100644
--- a/drivers/media/video/bt8xx/bttv-i2c.c
+++ b/drivers/media/video/bt8xx/bttv-i2c.c
@@ -479,11 +479,7 @@ int __devexit fini_bttv_i2c(struct bttv *btv)
         if (0 != btv->i2c_rc)
                 return 0;
 
-        if (btv->use_i2c_hw) {
-                return i2c_del_adapter(&btv->c.i2c_adap);
-        } else {
-                return i2c_bit_del_bus(&btv->c.i2c_adap);
-        }
+        return i2c_del_adapter(&btv->c.i2c_adap);
 }
 
 /*
diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c
index 4b655f2ef278..453af5e943ff 100644
--- a/drivers/media/video/cx88/cx88-core.c
+++ b/drivers/media/video/cx88/cx88-core.c
@@ -1153,7 +1153,7 @@ void cx88_core_put(struct cx88_core *core, struct pci_dev *pci)
         mutex_lock(&devlist);
         cx88_ir_fini(core);
         if (0 == core->i2c_rc)
-                i2c_bit_del_bus(&core->i2c_adap);
+                i2c_del_adapter(&core->i2c_adap);
         list_del(&core->devlist);
         iounmap(core->lmmio);
         cx88_devcount--;
diff --git a/drivers/media/video/cx88/cx88-vp3054-i2c.c b/drivers/media/video/cx88/cx88-vp3054-i2c.c
index 2b4f1970c7df..6068c9bf82cd 100644
--- a/drivers/media/video/cx88/cx88-vp3054-i2c.c
+++ b/drivers/media/video/cx88/cx88-vp3054-i2c.c
@@ -168,7 +168,7 @@ void vp3054_i2c_remove(struct cx8802_dev *dev)
             dev->core->board != CX88_BOARD_DNTV_LIVE_DVB_T_PRO)
                 return;
 
-        i2c_bit_del_bus(&vp3054_i2c->adap);
+        i2c_del_adapter(&vp3054_i2c->adap);
         kfree(vp3054_i2c);
 }
 
diff --git a/drivers/media/video/ov7670.c b/drivers/media/video/ov7670.c
index 89dd18c3c5cc..5ed0adc4ca26 100644
--- a/drivers/media/video/ov7670.c
+++ b/drivers/media/video/ov7670.c
@@ -18,7 +18,7 @@
 #include <linux/i2c.h>
 
 
-MODULE_AUTHOR("Jonathan Corbet <corbet@lwn.net.");
+MODULE_AUTHOR("Jonathan Corbet <corbet@lwn.net>");
 MODULE_DESCRIPTION("A low-level driver for OmniVision ov7670 sensors");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/media/video/vino.c b/drivers/media/video/vino.c
index 6b6dff4d236a..a373c142e742 100644
--- a/drivers/media/video/vino.c
+++ b/drivers/media/video/vino.c
@@ -782,7 +782,7 @@ static int vino_i2c_add_bus(void)
 
 static int vino_i2c_del_bus(void)
 {
-        return i2c_sgi_del_bus(&vino_i2c_adapter);
+        return i2c_del_adapter(&vino_i2c_adapter);
 }
 
 static int i2c_camera_command(unsigned int cmd, void *arg)
diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c
index 653822ce391c..4d1eb2fba34a 100644
--- a/drivers/media/video/zoran_card.c
+++ b/drivers/media/video/zoran_card.c
@@ -849,7 +849,7 @@ zoran_register_i2c (struct zoran *zr)
 static void
 zoran_unregister_i2c (struct zoran *zr)
 {
-        i2c_bit_del_bus((&zr->i2c_adapter));
+        i2c_del_adapter(&zr->i2c_adapter);
 }
 
 /* Check a zoran_params struct for correctness, insert default params */
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 03bf164f9e8d..c2ae2a24629b 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1930,9 +1930,8 @@ static int e100_rx_alloc_list(struct nic *nic)
         nic->rx_to_use = nic->rx_to_clean = NULL;
         nic->ru_running = RU_UNINITIALIZED;
 
-        if(!(nic->rxs = kmalloc(sizeof(struct rx) * count, GFP_ATOMIC)))
+        if(!(nic->rxs = kcalloc(count, sizeof(struct rx), GFP_ATOMIC)))
                 return -ENOMEM;
-        memset(nic->rxs, 0, sizeof(struct rx) * count);
 
         for(rx = nic->rxs, i = 0; i < count; rx++, i++) {
                 rx->next = (i + 1 < count) ? rx + 1 : nic->rxs;
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 0b36dd5cdac2..2978c09860ee 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -663,7 +663,7 @@ config V850E_UART
 
 config V850E_UARTB
         bool
-        depends V850E_UART && V850E_ME2
+        depends on V850E_UART && V850E_ME2
         default y
 
 config V850E_UART_CONSOLE
@@ -909,7 +909,7 @@ config SERIAL_M32R_PLDSIO
 
 config SERIAL_TXX9
         bool "TMPTX39XX/49XX SIO support"
-        depends HAS_TXX9_SERIAL
+        depends on HAS_TXX9_SERIAL
         select SERIAL_CORE
         default y
 
diff --git a/drivers/serial/icom.c b/drivers/serial/icom.c
index 7d623003e65e..71e6a24d8c28 100644
--- a/drivers/serial/icom.c
+++ b/drivers/serial/icom.c
@@ -1510,7 +1510,7 @@ static int __devinit icom_probe(struct pci_dev *dev,
         }
 
         if ( (retval = pci_request_regions(dev, "icom"))) {
-                 dev_err(&dev->dev, "pci_request_region FAILED\n");
+                 dev_err(&dev->dev, "pci_request_regions FAILED\n");
                  pci_disable_device(dev);
                  return retval;
          }
diff --git a/drivers/video/aty/radeon_i2c.c b/drivers/video/aty/radeon_i2c.c
index 869725a13c21..e7c5b219ad1b 100644
--- a/drivers/video/aty/radeon_i2c.c
+++ b/drivers/video/aty/radeon_i2c.c
@@ -120,19 +120,19 @@ void radeon_create_i2c_busses(struct radeonfb_info *rinfo)
 void radeon_delete_i2c_busses(struct radeonfb_info *rinfo)
 {
         if (rinfo->i2c[0].rinfo)
-                i2c_bit_del_bus(&rinfo->i2c[0].adapter);
+                i2c_del_adapter(&rinfo->i2c[0].adapter);
         rinfo->i2c[0].rinfo = NULL;
 
         if (rinfo->i2c[1].rinfo)
-                i2c_bit_del_bus(&rinfo->i2c[1].adapter);
+                i2c_del_adapter(&rinfo->i2c[1].adapter);
         rinfo->i2c[1].rinfo = NULL;
 
         if (rinfo->i2c[2].rinfo)
-                i2c_bit_del_bus(&rinfo->i2c[2].adapter);
+                i2c_del_adapter(&rinfo->i2c[2].adapter);
         rinfo->i2c[2].rinfo = NULL;
 
         if (rinfo->i2c[3].rinfo)
-                i2c_bit_del_bus(&rinfo->i2c[3].adapter);
+                i2c_del_adapter(&rinfo->i2c[3].adapter);
         rinfo->i2c[3].rinfo = NULL;
 }
 
diff --git a/drivers/video/i810/i810-i2c.c b/drivers/video/i810/i810-i2c.c
index b952e4504abe..961f4d404467 100644
--- a/drivers/video/i810/i810-i2c.c
+++ b/drivers/video/i810/i810-i2c.c
@@ -137,15 +137,15 @@ void i810_create_i2c_busses(struct i810fb_par *par)
 void i810_delete_i2c_busses(struct i810fb_par *par)
 {
         if (par->chan[0].par)
-                i2c_bit_del_bus(&par->chan[0].adapter);
+                i2c_del_adapter(&par->chan[0].adapter);
         par->chan[0].par = NULL;
 
         if (par->chan[1].par)
-                i2c_bit_del_bus(&par->chan[1].adapter);
+                i2c_del_adapter(&par->chan[1].adapter);
         par->chan[1].par = NULL;
 
         if (par->chan[2].par)
-                i2c_bit_del_bus(&par->chan[2].adapter);
+                i2c_del_adapter(&par->chan[2].adapter);
         par->chan[2].par = NULL;
 }
 
diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index 5686e2164e39..33bc41f50540 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -188,11 +188,11 @@ void intelfb_delete_i2c_busses(struct intelfb_info *dinfo)
 
         for (i = 0; i < MAX_OUTPUTS; i++) {
                 if (dinfo->output[i].i2c_bus.dinfo) {
-                        i2c_bit_del_bus(&dinfo->output[i].i2c_bus.adapter);
+                        i2c_del_adapter(&dinfo->output[i].i2c_bus.adapter);
                         dinfo->output[i].i2c_bus.dinfo = NULL;
                 }
                 if (dinfo->output[i].ddc_bus.dinfo) {
-                        i2c_bit_del_bus(&dinfo->output[i].ddc_bus.adapter);
+                        i2c_del_adapter(&dinfo->output[i].ddc_bus.adapter);
                         dinfo->output[i].ddc_bus.dinfo = NULL;
                 }
         }
diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c
index 795c1a99a680..797b42305b0f 100644
--- a/drivers/video/matrox/i2c-matroxfb.c
+++ b/drivers/video/matrox/i2c-matroxfb.c
@@ -124,7 +124,7 @@ static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo,
 
 static void i2c_bit_bus_del(struct i2c_bit_adapter* b) {
         if (b->initialized) {
-                i2c_bit_del_bus(&b->adapter);
+                i2c_del_adapter(&b->adapter);
                 b->initialized = 0;
         }
 }
diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c
index 442e85328341..8454adf2d178 100644
--- a/drivers/video/nvidia/nv_i2c.c
+++ b/drivers/video/nvidia/nv_i2c.c
@@ -147,15 +147,15 @@ void nvidia_create_i2c_busses(struct nvidia_par *par)
 void nvidia_delete_i2c_busses(struct nvidia_par *par)
 {
         if (par->chan[0].par)
-                i2c_bit_del_bus(&par->chan[0].adapter);
+                i2c_del_adapter(&par->chan[0].adapter);
         par->chan[0].par = NULL;
 
         if (par->chan[1].par)
-                i2c_bit_del_bus(&par->chan[1].adapter);
+                i2c_del_adapter(&par->chan[1].adapter);
         par->chan[1].par = NULL;
 
         if (par->chan[2].par)
-                i2c_bit_del_bus(&par->chan[2].adapter);
+                i2c_del_adapter(&par->chan[2].adapter);
         par->chan[2].par = NULL;
 
 }
diff --git a/drivers/video/riva/rivafb-i2c.c b/drivers/video/riva/rivafb-i2c.c
index c15b259af644..01b85e3b0ae1 100644
--- a/drivers/video/riva/rivafb-i2c.c
+++ b/drivers/video/riva/rivafb-i2c.c
@@ -144,15 +144,15 @@ void riva_create_i2c_busses(struct riva_par *par)
 void riva_delete_i2c_busses(struct riva_par *par)
 {
         if (par->chan[0].par)
-                i2c_bit_del_bus(&par->chan[0].adapter);
+                i2c_del_adapter(&par->chan[0].adapter);
         par->chan[0].par = NULL;
 
         if (par->chan[1].par)
-                i2c_bit_del_bus(&par->chan[1].adapter);
+                i2c_del_adapter(&par->chan[1].adapter);
         par->chan[1].par = NULL;
 
         if (par->chan[2].par)
-                i2c_bit_del_bus(&par->chan[2].adapter);
+                i2c_del_adapter(&par->chan[2].adapter);
         par->chan[2].par = NULL;
 }
 
diff --git a/drivers/video/savage/savagefb-i2c.c b/drivers/video/savage/savagefb-i2c.c
index cef5bf591cdf..1411f3b6a009 100644
--- a/drivers/video/savage/savagefb-i2c.c
+++ b/drivers/video/savage/savagefb-i2c.c
@@ -208,7 +208,7 @@ void savagefb_delete_i2c_busses(struct fb_info *info)
         struct savagefb_par *par = info->par;
 
         if (par->chan.par)
-                i2c_bit_del_bus(&par->chan.adapter);
+                i2c_del_adapter(&par->chan.adapter);
 
         par->chan.par = NULL;
 }
diff --git a/fs/Kconfig b/fs/Kconfig
index b3b5aa0edff9..276ff3baaafe 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -12,9 +12,7 @@ config EXT2_FS
           Ext2 is a standard Linux file system for hard disks.
 
           To compile this file system support as a module, choose M here: the
-          module will be called ext2.  Be aware however that the file system
-          of your root partition (the one containing the directory /) cannot
-          be compiled as a module, and so this could be dangerous.
+          module will be called ext2.
 
           If unsure, say Y.
 
@@ -98,9 +96,7 @@ config EXT3_FS
           (available at <http://sourceforge.net/projects/e2fsprogs/>).
 
           To compile this file system support as a module, choose M here: the
-          module will be called ext3.  Be aware however that the file system
-          of your root partition (the one containing the directory /) cannot
-          be compiled as a module, and so this may be dangerous.
+          module will be called ext3.
 
 config EXT3_FS_XATTR
         bool "Ext3 extended attributes"
@@ -163,9 +159,7 @@ config EXT4DEV_FS
           features will be added to ext4dev gradually.
 
           To compile this file system support as a module, choose M here. The
-          module will be called ext4dev.  Be aware, however, that the filesystem
-          of your root partition (the one containing the directory /) cannot
-          be compiled as a module, and so this could be dangerous.
+          module will be called ext4dev.
 
           If unsure, say N.
 
@@ -1008,7 +1002,7 @@ config TMPFS_POSIX_ACL
 
 config HUGETLBFS
         bool "HugeTLB file system support"
-        depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || BROKEN
+        depends on X86 || IA64 || PPC64 || SPARC64 || SUPERH || BROKEN
         help
           hugetlbfs is a filesystem backing for HugeTLB pages, based on
           ramfs. For architectures that support it, say Y here and read
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 76f06f6bc2f6..6e6d4568d548 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -706,12 +706,11 @@ static int elf_fdpic_map_file(struct elf_fdpic_params *params,
                 return -ELIBBAD;
 
         size = sizeof(*loadmap) + nloads * sizeof(*seg);
-        loadmap = kmalloc(size, GFP_KERNEL);
+        loadmap = kzalloc(size, GFP_KERNEL);
         if (!loadmap)
                 return -ENOMEM;
 
         params->loadmap = loadmap;
-        memset(loadmap, 0, size);
 
         loadmap->version = ELF32_FDPIC_LOADMAP_VERSION;
         loadmap->nsegs = nloads;
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index d11753c50bc1..357f1d551771 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -35,7 +35,7 @@
 /* for now we operate under the assertion that there can be only one
  * cluster active at a time.  Changing this will require trickling
  * cluster references throughout where nodes are looked up */
-static struct o2nm_cluster *o2nm_single_cluster = NULL;
+struct o2nm_cluster *o2nm_single_cluster = NULL;
 
 #define OCFS2_MAX_HB_CTL_PATH 256
 static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl";
@@ -97,17 +97,6 @@ const char *o2nm_get_hb_ctl_path(void)
 }
 EXPORT_SYMBOL_GPL(o2nm_get_hb_ctl_path);
 
-struct o2nm_cluster {
-        struct config_group     cl_group;
-        unsigned                cl_has_local:1;
-        u8                      cl_local_node;
-        rwlock_t                cl_nodes_lock;
-        struct o2nm_node        *cl_nodes[O2NM_MAX_NODES];
-        struct rb_root          cl_node_ip_tree;
-        /* this bitmap is part of a hack for disk bitmap.. will go eventually. - zab */
-        unsigned long   cl_nodes_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
-};
-
 struct o2nm_node *o2nm_get_node_by_num(u8 node_num)
 {
         struct o2nm_node *node = NULL;
@@ -543,6 +532,179 @@ static struct o2nm_node_group *to_o2nm_node_group(struct config_group *group)
 }
 #endif
 
+struct o2nm_cluster_attribute {
+        struct configfs_attribute attr;
+        ssize_t (*show)(struct o2nm_cluster *, char *);
+        ssize_t (*store)(struct o2nm_cluster *, const char *, size_t);
+};
+
+static ssize_t o2nm_cluster_attr_write(const char *page, ssize_t count,
+                                       unsigned int *val)
+{
+        unsigned long tmp;
+        char *p = (char *)page;
+
+        tmp = simple_strtoul(p, &p, 0);
+        if (!p || (*p && (*p != '\n')))
+                return -EINVAL;
+
+        if (tmp == 0)
+                return -EINVAL;
+        if (tmp >= (u32)-1)
+                return -ERANGE;
+
+        *val = tmp;
+
+        return count;
+}
+
+static ssize_t o2nm_cluster_attr_idle_timeout_ms_read(
+        struct o2nm_cluster *cluster, char *page)
+{
+        return sprintf(page, "%u\n", cluster->cl_idle_timeout_ms);
+}
+
+static ssize_t o2nm_cluster_attr_idle_timeout_ms_write(
+        struct o2nm_cluster *cluster, const char *page, size_t count)
+{
+        ssize_t ret;
+        unsigned int val;
+
+        ret =  o2nm_cluster_attr_write(page, count, &val);
+
+        if (ret > 0) {
+                if (cluster->cl_idle_timeout_ms != val
+                        && o2net_num_connected_peers()) {
+                        mlog(ML_NOTICE,
+                             "o2net: cannot change idle timeout after "
+                             "the first peer has agreed to it."
+                             "  %d connected peers\n",
+                             o2net_num_connected_peers());
+                        ret = -EINVAL;
+                } else if (val <= cluster->cl_keepalive_delay_ms) {
+                        mlog(ML_NOTICE, "o2net: idle timeout must be larger "
+                             "than keepalive delay\n");
+                        ret = -EINVAL;
+                } else {
+                        cluster->cl_idle_timeout_ms = val;
+                }
+        }
+
+        return ret;
+}
+
+static ssize_t o2nm_cluster_attr_keepalive_delay_ms_read(
+        struct o2nm_cluster *cluster, char *page)
+{
+        return sprintf(page, "%u\n", cluster->cl_keepalive_delay_ms);
+}
+
+static ssize_t o2nm_cluster_attr_keepalive_delay_ms_write(
+        struct o2nm_cluster *cluster, const char *page, size_t count)
+{
+        ssize_t ret;
+        unsigned int val;
+
+        ret =  o2nm_cluster_attr_write(page, count, &val);
+
+        if (ret > 0) {
+                if (cluster->cl_keepalive_delay_ms != val
+                    && o2net_num_connected_peers()) {
+                        mlog(ML_NOTICE,
+                             "o2net: cannot change keepalive delay after"
+                             " the first peer has agreed to it."
+                             "  %d connected peers\n",
+                             o2net_num_connected_peers());
+                        ret = -EINVAL;
+                } else if (val >= cluster->cl_idle_timeout_ms) {
+                        mlog(ML_NOTICE, "o2net: keepalive delay must be "
+                             "smaller than idle timeout\n");
+                        ret = -EINVAL;
+                } else {
+                        cluster->cl_keepalive_delay_ms = val;
+                }
+        }
+
+        return ret;
+}
+
+static ssize_t o2nm_cluster_attr_reconnect_delay_ms_read(
+        struct o2nm_cluster *cluster, char *page)
+{
+        return sprintf(page, "%u\n", cluster->cl_reconnect_delay_ms);
+}
+
+static ssize_t o2nm_cluster_attr_reconnect_delay_ms_write(
+        struct o2nm_cluster *cluster, const char *page, size_t count)
+{
+        return o2nm_cluster_attr_write(page, count,
+                                       &cluster->cl_reconnect_delay_ms);
+}
+static struct o2nm_cluster_attribute o2nm_cluster_attr_idle_timeout_ms = {
+        .attr   = { .ca_owner = THIS_MODULE,
+                    .ca_name = "idle_timeout_ms",
+                    .ca_mode = S_IRUGO | S_IWUSR },
+        .show   = o2nm_cluster_attr_idle_timeout_ms_read,
+        .store  = o2nm_cluster_attr_idle_timeout_ms_write,
+};
+
+static struct o2nm_cluster_attribute o2nm_cluster_attr_keepalive_delay_ms = {
+        .attr   = { .ca_owner = THIS_MODULE,
+                    .ca_name = "keepalive_delay_ms",
+                    .ca_mode = S_IRUGO | S_IWUSR },
+        .show   = o2nm_cluster_attr_keepalive_delay_ms_read,
+        .store  = o2nm_cluster_attr_keepalive_delay_ms_write,
+};
+
+static struct o2nm_cluster_attribute o2nm_cluster_attr_reconnect_delay_ms = {
+        .attr   = { .ca_owner = THIS_MODULE,
+                    .ca_name = "reconnect_delay_ms",
+                    .ca_mode = S_IRUGO | S_IWUSR },
+        .show   = o2nm_cluster_attr_reconnect_delay_ms_read,
+        .store  = o2nm_cluster_attr_reconnect_delay_ms_write,
+};
+
+static struct configfs_attribute *o2nm_cluster_attrs[] = {
+        &o2nm_cluster_attr_idle_timeout_ms.attr,
+        &o2nm_cluster_attr_keepalive_delay_ms.attr,
+        &o2nm_cluster_attr_reconnect_delay_ms.attr,
+        NULL,
+};
+static ssize_t o2nm_cluster_show(struct config_item *item,
+                                 struct configfs_attribute *attr,
+                                 char *page)
+{
+        struct o2nm_cluster *cluster = to_o2nm_cluster(item);
+        struct o2nm_cluster_attribute *o2nm_cluster_attr =
+                container_of(attr, struct o2nm_cluster_attribute, attr);
+        ssize_t ret = 0;
+
+        if (o2nm_cluster_attr->show)
+                ret = o2nm_cluster_attr->show(cluster, page);
+        return ret;
+}
+
+static ssize_t o2nm_cluster_store(struct config_item *item,
+                                  struct configfs_attribute *attr,
+                                  const char *page, size_t count)
+{
+        struct o2nm_cluster *cluster = to_o2nm_cluster(item);
+        struct o2nm_cluster_attribute *o2nm_cluster_attr =
+                container_of(attr, struct o2nm_cluster_attribute, attr);
+        ssize_t ret;
+
+        if (o2nm_cluster_attr->store == NULL) {
+                ret = -EINVAL;
+                goto out;
+        }
+
+        ret = o2nm_cluster_attr->store(cluster, page, count);
+        if (ret < count)
+                goto out;
+out:
+        return ret;
+}
+
 static struct config_item *o2nm_node_group_make_item(struct config_group *group,
                                                      const char *name)
 {
@@ -624,10 +786,13 @@ static void o2nm_cluster_release(struct config_item *item)
 
 static struct configfs_item_operations o2nm_cluster_item_ops = {
         .release        = o2nm_cluster_release,
+        .show_attribute         = o2nm_cluster_show,
+        .store_attribute        = o2nm_cluster_store,
 };
 
 static struct config_item_type o2nm_cluster_type = {
         .ct_item_ops    = &o2nm_cluster_item_ops,
+        .ct_attrs       = o2nm_cluster_attrs,
         .ct_owner       = THIS_MODULE,
 };
 
@@ -678,6 +843,9 @@ static struct config_group *o2nm_cluster_group_make_group(struct config_group *g
         cluster->cl_group.default_groups[2] = NULL;
         rwlock_init(&cluster->cl_nodes_lock);
         cluster->cl_node_ip_tree = RB_ROOT;
+        cluster->cl_reconnect_delay_ms = O2NET_RECONNECT_DELAY_MS_DEFAULT;
+        cluster->cl_idle_timeout_ms    = O2NET_IDLE_TIMEOUT_MS_DEFAULT;
+        cluster->cl_keepalive_delay_ms = O2NET_KEEPALIVE_DELAY_MS_DEFAULT;
 
         ret = &cluster->cl_group;
         o2nm_single_cluster = cluster;
diff --git a/fs/ocfs2/cluster/nodemanager.h b/fs/ocfs2/cluster/nodemanager.h
index fce8033c310f..8fb23cacc2f5 100644
--- a/fs/ocfs2/cluster/nodemanager.h
+++ b/fs/ocfs2/cluster/nodemanager.h
@@ -53,6 +53,23 @@ struct o2nm_node {
         unsigned long           nd_set_attributes;
 };
 
+struct o2nm_cluster {
+        struct config_group     cl_group;
+        unsigned                cl_has_local:1;
+        u8                      cl_local_node;
+        rwlock_t                cl_nodes_lock;
+        struct o2nm_node        *cl_nodes[O2NM_MAX_NODES];
+        struct rb_root          cl_node_ip_tree;
+        unsigned int            cl_idle_timeout_ms;
+        unsigned int            cl_keepalive_delay_ms;
+        unsigned int            cl_reconnect_delay_ms;
+
+        /* this bitmap is part of a hack for disk bitmap.. will go eventually. - zab */
+        unsigned long   cl_nodes_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
+};
+
+extern struct o2nm_cluster *o2nm_single_cluster;
+
 u8 o2nm_this_node(void);
 
 int o2nm_configured_node_map(unsigned long *map, unsigned bytes);
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 9b3209dc0b16..457753df1ae7 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -147,6 +147,28 @@ static void o2net_listen_data_ready(struct sock *sk, int bytes);
 static void o2net_sc_send_keep_req(struct work_struct *work);
 static void o2net_idle_timer(unsigned long data);
 static void o2net_sc_postpone_idle(struct o2net_sock_container *sc);
+static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc);
+
+/*
+ * FIXME: These should use to_o2nm_cluster_from_node(), but we end up
+ * losing our parent link to the cluster during shutdown. This can be
+ * solved by adding a pre-removal callback to configfs, or passing
+ * around the cluster with the node. -jeffm
+ */
+static inline int o2net_reconnect_delay(struct o2nm_node *node)
+{
+        return o2nm_single_cluster->cl_reconnect_delay_ms;
+}
+
+static inline int o2net_keepalive_delay(struct o2nm_node *node)
+{
+        return o2nm_single_cluster->cl_keepalive_delay_ms;
+}
+
+static inline int o2net_idle_timeout(struct o2nm_node *node)
+{
+        return o2nm_single_cluster->cl_idle_timeout_ms;
+}
 
 static inline int o2net_sys_err_to_errno(enum o2net_system_error err)
 {
@@ -271,6 +293,8 @@ static void sc_kref_release(struct kref *kref)
 {
         struct o2net_sock_container *sc = container_of(kref,
                                         struct o2net_sock_container, sc_kref);
+        BUG_ON(timer_pending(&sc->sc_idle_timeout));
+
         sclog(sc, "releasing\n");
 
         if (sc->sc_sock) {
@@ -356,6 +380,13 @@ static void o2net_sc_cancel_delayed_work(struct o2net_sock_container *sc,
                 sc_put(sc);
 }
 
+static atomic_t o2net_connected_peers = ATOMIC_INIT(0);
+
+int o2net_num_connected_peers(void)
+{
+        return atomic_read(&o2net_connected_peers);
+}
+
 static void o2net_set_nn_state(struct o2net_node *nn,
                                struct o2net_sock_container *sc,
                                unsigned valid, int err)
@@ -366,6 +397,11 @@ static void o2net_set_nn_state(struct o2net_node *nn,
 
         assert_spin_locked(&nn->nn_lock);
 
+        if (old_sc && !sc)
+                atomic_dec(&o2net_connected_peers);
+        else if (!old_sc && sc)
+                atomic_inc(&o2net_connected_peers);
+
         /* the node num comparison and single connect/accept path should stop
          * an non-null sc from being overwritten with another */
         BUG_ON(sc && nn->nn_sc && nn->nn_sc != sc);
@@ -424,9 +460,9 @@ static void o2net_set_nn_state(struct o2net_node *nn,
                 /* delay if we're withing a RECONNECT_DELAY of the
                  * last attempt */
                 delay = (nn->nn_last_connect_attempt +
-                         msecs_to_jiffies(O2NET_RECONNECT_DELAY_MS))
+                         msecs_to_jiffies(o2net_reconnect_delay(sc->sc_node)))
                         - jiffies;
-                if (delay > msecs_to_jiffies(O2NET_RECONNECT_DELAY_MS))
+                if (delay > msecs_to_jiffies(o2net_reconnect_delay(sc->sc_node)))
                         delay = 0;
                 mlog(ML_CONN, "queueing conn attempt in %lu jiffies\n", delay);
                 queue_delayed_work(o2net_wq, &nn->nn_connect_work, delay);
@@ -1099,13 +1135,51 @@ static int o2net_check_handshake(struct o2net_sock_container *sc)
                 return -1;
         }
 
+        /*
+         * Ensure timeouts are consistent with other nodes, otherwise
+         * we can end up with one node thinking that the other must be down,
+         * but isn't. This can ultimately cause corruption.
+         */
+        if (be32_to_cpu(hand->o2net_idle_timeout_ms) !=
+                                o2net_idle_timeout(sc->sc_node)) {
+                mlog(ML_NOTICE, SC_NODEF_FMT " uses a network idle timeout of "
+                     "%u ms, but we use %u ms locally.  disconnecting\n",
+                     SC_NODEF_ARGS(sc),
+                     be32_to_cpu(hand->o2net_idle_timeout_ms),
+                     o2net_idle_timeout(sc->sc_node));
+                o2net_ensure_shutdown(nn, sc, -ENOTCONN);
+                return -1;
+        }
+
+        if (be32_to_cpu(hand->o2net_keepalive_delay_ms) !=
+                        o2net_keepalive_delay(sc->sc_node)) {
+                mlog(ML_NOTICE, SC_NODEF_FMT " uses a keepalive delay of "
+                     "%u ms, but we use %u ms locally.  disconnecting\n",
+                     SC_NODEF_ARGS(sc),
+                     be32_to_cpu(hand->o2net_keepalive_delay_ms),
+                     o2net_keepalive_delay(sc->sc_node));
+                o2net_ensure_shutdown(nn, sc, -ENOTCONN);
+                return -1;
+        }
+
+        if (be32_to_cpu(hand->o2hb_heartbeat_timeout_ms) !=
+                        O2HB_MAX_WRITE_TIMEOUT_MS) {
+                mlog(ML_NOTICE, SC_NODEF_FMT " uses a heartbeat timeout of "
+                     "%u ms, but we use %u ms locally.  disconnecting\n",
+                     SC_NODEF_ARGS(sc),
+                     be32_to_cpu(hand->o2hb_heartbeat_timeout_ms),
+                     O2HB_MAX_WRITE_TIMEOUT_MS);
+                o2net_ensure_shutdown(nn, sc, -ENOTCONN);
+                return -1;
+        }
+
         sc->sc_handshake_ok = 1;
 
         spin_lock(&nn->nn_lock);
         /* set valid and queue the idle timers only if it hasn't been
          * shut down already */
         if (nn->nn_sc == sc) {
-                o2net_sc_postpone_idle(sc);
+                o2net_sc_reset_idle_timer(sc);
                 o2net_set_nn_state(nn, sc, 1, 0);
         }
         spin_unlock(&nn->nn_lock);
@@ -1131,6 +1205,23 @@ static int o2net_advance_rx(struct o2net_sock_container *sc)
         sclog(sc, "receiving\n");
         do_gettimeofday(&sc->sc_tv_advance_start);
 
+        if (unlikely(sc->sc_handshake_ok == 0)) {
+                if(sc->sc_page_off < sizeof(struct o2net_handshake)) {
+                        data = page_address(sc->sc_page) + sc->sc_page_off;
+                        datalen = sizeof(struct o2net_handshake) - sc->sc_page_off;
+                        ret = o2net_recv_tcp_msg(sc->sc_sock, data, datalen);
+                        if (ret > 0)
+                                sc->sc_page_off += ret;
+                }
+
+                if (sc->sc_page_off == sizeof(struct o2net_handshake)) {
+                        o2net_check_handshake(sc);
+                        if (unlikely(sc->sc_handshake_ok == 0))
+                                ret = -EPROTO;
+                }
+                goto out;
+        }
+
         /* do we need more header? */
         if (sc->sc_page_off < sizeof(struct o2net_msg)) {
                 data = page_address(sc->sc_page) + sc->sc_page_off;
@@ -1138,15 +1229,6 @@ static int o2net_advance_rx(struct o2net_sock_container *sc)
                 ret = o2net_recv_tcp_msg(sc->sc_sock, data, datalen);
                 if (ret > 0) {
                         sc->sc_page_off += ret;
-
-                        /* this working relies on the handshake being
-                         * smaller than the normal message header */
-                        if (sc->sc_page_off >= sizeof(struct o2net_handshake)&&
-                            !sc->sc_handshake_ok && o2net_check_handshake(sc)) {
-                                ret = -EPROTO;
-                                goto out;
-                        }
-
                         /* only swab incoming here.. we can
                          * only get here once as we cross from
                          * being under to over */
@@ -1248,6 +1330,18 @@ static int o2net_set_nodelay(struct socket *sock)
         return ret;
 }
 
+static void o2net_initialize_handshake(void)
+{
+        o2net_hand->o2hb_heartbeat_timeout_ms = cpu_to_be32(
+                O2HB_MAX_WRITE_TIMEOUT_MS);
+        o2net_hand->o2net_idle_timeout_ms = cpu_to_be32(
+                o2net_idle_timeout(NULL));
+        o2net_hand->o2net_keepalive_delay_ms = cpu_to_be32(
+                o2net_keepalive_delay(NULL));
+        o2net_hand->o2net_reconnect_delay_ms = cpu_to_be32(
+                o2net_reconnect_delay(NULL));
+}
+
 /* ------------------------------------------------------------ */
 
 /* called when a connect completes and after a sock is accepted.  the
@@ -1262,6 +1356,7 @@ static void o2net_sc_connect_completed(struct work_struct *work)
               (unsigned long long)O2NET_PROTOCOL_VERSION,
               (unsigned long long)be64_to_cpu(o2net_hand->connector_id));
 
+        o2net_initialize_handshake();
         o2net_sendpage(sc, o2net_hand, sizeof(*o2net_hand));
         sc_put(sc);
 }
@@ -1287,8 +1382,10 @@ static void o2net_idle_timer(unsigned long data)
 
         do_gettimeofday(&now);
 
-        printk(KERN_INFO "o2net: connection to " SC_NODEF_FMT " has been idle for 10 "
-             "seconds, shutting it down.\n", SC_NODEF_ARGS(sc));
+        printk(KERN_INFO "o2net: connection to " SC_NODEF_FMT " has been idle for %u.%u "
+             "seconds, shutting it down.\n", SC_NODEF_ARGS(sc),
+                     o2net_idle_timeout(sc->sc_node) / 1000,
+                     o2net_idle_timeout(sc->sc_node) % 1000);
         mlog(ML_NOTICE, "here are some times that might help debug the "
              "situation: (tmr %ld.%ld now %ld.%ld dr %ld.%ld adv "
              "%ld.%ld:%ld.%ld func (%08x:%u) %ld.%ld:%ld.%ld)\n",
@@ -1306,14 +1403,21 @@ static void o2net_idle_timer(unsigned long data)
         o2net_sc_queue_work(sc, &sc->sc_shutdown_work);
 }
 
-static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
+static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc)
 {
         o2net_sc_cancel_delayed_work(sc, &sc->sc_keepalive_work);
         o2net_sc_queue_delayed_work(sc, &sc->sc_keepalive_work,
-                                    O2NET_KEEPALIVE_DELAY_SECS * HZ);
+                      msecs_to_jiffies(o2net_keepalive_delay(sc->sc_node)));
         do_gettimeofday(&sc->sc_tv_timer);
         mod_timer(&sc->sc_idle_timeout,
-                  jiffies + (O2NET_IDLE_TIMEOUT_SECS * HZ));
+               jiffies + msecs_to_jiffies(o2net_idle_timeout(sc->sc_node)));
+}
+
+static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
+{
+        /* Only push out an existing timer */
+        if (timer_pending(&sc->sc_idle_timeout))
+                o2net_sc_reset_idle_timer(sc);
 }
 
 /* this work func is kicked whenever a path sets the nn state which doesn't
@@ -1435,9 +1539,12 @@ static void o2net_connect_expired(struct work_struct *work)
 
         spin_lock(&nn->nn_lock);
         if (!nn->nn_sc_valid) {
+                struct o2nm_node *node = nn->nn_sc->sc_node;
                 mlog(ML_ERROR, "no connection established with node %u after "
-                     "%u seconds, giving up and returning errors.\n",
-                     o2net_num_from_nn(nn), O2NET_IDLE_TIMEOUT_SECS);
+                     "%u.%u seconds, giving up and returning errors.\n",
+                     o2net_num_from_nn(nn),
+                     o2net_idle_timeout(node) / 1000,
+                     o2net_idle_timeout(node) % 1000);
 
                 o2net_set_nn_state(nn, NULL, 0, -ENOTCONN);
         }
@@ -1478,6 +1585,8 @@ static void o2net_hb_node_down_cb(struct o2nm_node *node, int node_num,
 
         if (node_num != o2nm_this_node())
                 o2net_disconnect_node(node);
+
+        BUG_ON(atomic_read(&o2net_connected_peers) < 0);
 }
 
 static void o2net_hb_node_up_cb(struct o2nm_node *node, int node_num,
@@ -1489,14 +1598,14 @@ static void o2net_hb_node_up_cb(struct o2nm_node *node, int node_num,
 
         /* ensure an immediate connect attempt */
         nn->nn_last_connect_attempt = jiffies -
-                (msecs_to_jiffies(O2NET_RECONNECT_DELAY_MS) + 1);
+                (msecs_to_jiffies(o2net_reconnect_delay(node)) + 1);
 
         if (node_num != o2nm_this_node()) {
                 /* heartbeat doesn't work unless a local node number is
                  * configured and doing so brings up the o2net_wq, so we can
                  * use it.. */
                 queue_delayed_work(o2net_wq, &nn->nn_connect_expired,
-                                   O2NET_IDLE_TIMEOUT_SECS * HZ);
+                                   msecs_to_jiffies(o2net_idle_timeout(node)));
 
                 /* believe it or not, accept and node hearbeating testing
                  * can succeed for this node before we got here.. so
@@ -1641,6 +1750,7 @@ static int o2net_accept_one(struct socket *sock)
         o2net_register_callbacks(sc->sc_sock->sk, sc);
         o2net_sc_queue_work(sc, &sc->sc_rx_work);
 
+        o2net_initialize_handshake();
         o2net_sendpage(sc, o2net_hand, sizeof(*o2net_hand));
 
 out:
diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h
index 616ff2b8434a..21a4e43df836 100644
--- a/fs/ocfs2/cluster/tcp.h
+++ b/fs/ocfs2/cluster/tcp.h
@@ -54,6 +54,13 @@ typedef int (o2net_msg_handler_func)(struct o2net_msg *msg, u32 len, void *data)
 
 #define O2NET_MAX_PAYLOAD_BYTES  (4096 - sizeof(struct o2net_msg))
 
+/* same as hb delay, we're waiting for another node to recognize our hb */
+#define O2NET_RECONNECT_DELAY_MS_DEFAULT        2000
+
+#define O2NET_KEEPALIVE_DELAY_MS_DEFAULT        5000
+#define O2NET_IDLE_TIMEOUT_MS_DEFAULT           10000
+
+
 /* TODO: figure this out.... */
 static inline int o2net_link_down(int err, struct socket *sock)
 {
@@ -101,6 +108,7 @@ void o2net_unregister_hb_callbacks(void);
 int o2net_start_listening(struct o2nm_node *node);
 void o2net_stop_listening(struct o2nm_node *node);
 void o2net_disconnect_node(struct o2nm_node *node);
+int o2net_num_connected_peers(void);
 
 int o2net_init(void);
 void o2net_exit(void);
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h
index daebbd3a2c8c..b700dc9624d1 100644
--- a/fs/ocfs2/cluster/tcp_internal.h
+++ b/fs/ocfs2/cluster/tcp_internal.h
@@ -27,23 +27,20 @@
 #define O2NET_MSG_KEEP_REQ_MAGIC  ((u16)0xfa57)
 #define O2NET_MSG_KEEP_RESP_MAGIC ((u16)0xfa58)
 
-/* same as hb delay, we're waiting for another node to recognize our hb */
-#define O2NET_RECONNECT_DELAY_MS        O2HB_REGION_TIMEOUT_MS
-
 /* we're delaying our quorum decision so that heartbeat will have timed
  * out truly dead nodes by the time we come around to making decisions
  * on their number */
 #define O2NET_QUORUM_DELAY_MS   ((o2hb_dead_threshold + 2) * O2HB_REGION_TIMEOUT_MS)
 
-#define O2NET_KEEPALIVE_DELAY_SECS      5
-#define O2NET_IDLE_TIMEOUT_SECS         10
-
 /* 
  * This version number represents quite a lot, unfortunately.  It not
  * only represents the raw network message protocol on the wire but also
  * locking semantics of the file system using the protocol.  It should 
  * be somewhere else, I'm sure, but right now it isn't.
  *
+ * New in version 5:
+ *      - Network timeout checking protocol
+ *
  * New in version 4:
  *      - Remove i_generation from lock names for better stat performance.
  *
@@ -54,10 +51,14 @@
  *      - full 64 bit i_size in the metadata lock lvbs
  *      - introduction of "rw" lock and pushing meta/data locking down
  */
-#define O2NET_PROTOCOL_VERSION 4ULL
+#define O2NET_PROTOCOL_VERSION 5ULL
 struct o2net_handshake {
         __be64  protocol_version;
         __be64  connector_id;
+        __be32  o2hb_heartbeat_timeout_ms;
+        __be32  o2net_idle_timeout_ms;
+        __be32  o2net_keepalive_delay_ms;
+        __be32  o2net_reconnect_delay_ms;
 };
 
 struct o2net_node {
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 69fba16efbd1..e6220137bf69 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -770,7 +770,7 @@ static int ocfs2_lock_create(struct ocfs2_super *osb,
                              int dlm_flags)
 {
         int ret = 0;
-        enum dlm_status status;
+        enum dlm_status status = DLM_NORMAL;
         unsigned long flags;
 
         mlog_entry_void();
@@ -1138,6 +1138,7 @@ int ocfs2_rw_lock(struct inode *inode, int write)
 {
         int status, level;
         struct ocfs2_lock_res *lockres;
+        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
         BUG_ON(!inode);
 
@@ -1147,6 +1148,9 @@ int ocfs2_rw_lock(struct inode *inode, int write)
              (unsigned long long)OCFS2_I(inode)->ip_blkno,
              write ? "EXMODE" : "PRMODE");
 
+        if (ocfs2_mount_local(osb))
+                return 0;
+
         lockres = &OCFS2_I(inode)->ip_rw_lockres;
 
         level = write ? LKM_EXMODE : LKM_PRMODE;
@@ -1164,6 +1168,7 @@ void ocfs2_rw_unlock(struct inode *inode, int write)
 {
         int level = write ? LKM_EXMODE : LKM_PRMODE;
         struct ocfs2_lock_res *lockres = &OCFS2_I(inode)->ip_rw_lockres;
+        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
         mlog_entry_void();
 
@@ -1171,7 +1176,8 @@ void ocfs2_rw_unlock(struct inode *inode, int write)
              (unsigned long long)OCFS2_I(inode)->ip_blkno,
              write ? "EXMODE" : "PRMODE");
 
-        ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres, level);
+        if (!ocfs2_mount_local(osb))
+                ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres, level);
 
         mlog_exit_void();
 }
@@ -1182,6 +1188,7 @@ int ocfs2_data_lock_full(struct inode *inode,
 {
         int status = 0, level;
         struct ocfs2_lock_res *lockres;
+        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
         BUG_ON(!inode);
 
@@ -1201,6 +1208,9 @@ int ocfs2_data_lock_full(struct inode *inode,
                 goto out;
         }
 
+        if (ocfs2_mount_local(osb))
+                goto out;
+
         lockres = &OCFS2_I(inode)->ip_data_lockres;
 
         level = write ? LKM_EXMODE : LKM_PRMODE;
@@ -1269,6 +1279,7 @@ void ocfs2_data_unlock(struct inode *inode,
 {
         int level = write ? LKM_EXMODE : LKM_PRMODE;
         struct ocfs2_lock_res *lockres = &OCFS2_I(inode)->ip_data_lockres;
+        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
         mlog_entry_void();
 
@@ -1276,7 +1287,8 @@ void ocfs2_data_unlock(struct inode *inode,
              (unsigned long long)OCFS2_I(inode)->ip_blkno,
              write ? "EXMODE" : "PRMODE");
 
-        if (!ocfs2_is_hard_readonly(OCFS2_SB(inode->i_sb)))
+        if (!ocfs2_is_hard_readonly(OCFS2_SB(inode->i_sb)) &&
+            !ocfs2_mount_local(osb))
                 ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres, level);
 
         mlog_exit_void();
@@ -1467,8 +1479,9 @@ static int ocfs2_meta_lock_update(struct inode *inode,
 {
         int status = 0;
         struct ocfs2_inode_info *oi = OCFS2_I(inode);
-        struct ocfs2_lock_res *lockres;
+        struct ocfs2_lock_res *lockres = NULL;
         struct ocfs2_dinode *fe;
+        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
         mlog_entry_void();
 
@@ -1483,10 +1496,12 @@ static int ocfs2_meta_lock_update(struct inode *inode,
         }
         spin_unlock(&oi->ip_lock);
 
-        lockres = &oi->ip_meta_lockres;
+        if (!ocfs2_mount_local(osb)) {
+                lockres = &oi->ip_meta_lockres;
 
-        if (!ocfs2_should_refresh_lock_res(lockres))
-                goto bail;
+                if (!ocfs2_should_refresh_lock_res(lockres))
+                        goto bail;
+        }
 
         /* This will discard any caching information we might have had
          * for the inode metadata. */
@@ -1496,7 +1511,7 @@ static int ocfs2_meta_lock_update(struct inode *inode,
          * map (directories, bitmap files, etc) */
         ocfs2_extent_map_trunc(inode, 0);
 
-        if (ocfs2_meta_lvb_is_trustable(inode, lockres)) {
+        if (lockres && ocfs2_meta_lvb_is_trustable(inode, lockres)) {
                 mlog(0, "Trusting LVB on inode %llu\n",
                      (unsigned long long)oi->ip_blkno);
                 ocfs2_refresh_inode_from_lvb(inode);
@@ -1543,7 +1558,8 @@ static int ocfs2_meta_lock_update(struct inode *inode,
 
         status = 0;
 bail_refresh:
-        ocfs2_complete_lock_res_refresh(lockres, status);
+        if (lockres)
+                ocfs2_complete_lock_res_refresh(lockres, status);
 bail:
         mlog_exit(status);
         return status;
@@ -1585,7 +1601,7 @@ int ocfs2_meta_lock_full(struct inode *inode,
                          int arg_flags)
 {
         int status, level, dlm_flags, acquired;
-        struct ocfs2_lock_res *lockres;
+        struct ocfs2_lock_res *lockres = NULL;
         struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
         struct buffer_head *local_bh = NULL;
 
@@ -1607,6 +1623,9 @@ int ocfs2_meta_lock_full(struct inode *inode,
                 goto bail;
         }
 
+        if (ocfs2_mount_local(osb))
+                goto local;
+
         if (!(arg_flags & OCFS2_META_LOCK_RECOVERY))
                 wait_event(osb->recovery_event,
                            ocfs2_node_map_is_empty(osb, &osb->recovery_map));
@@ -1636,6 +1655,7 @@ int ocfs2_meta_lock_full(struct inode *inode,
                 wait_event(osb->recovery_event,
                            ocfs2_node_map_is_empty(osb, &osb->recovery_map));
 
+local:
         /*
          * We only see this flag if we're being called from
          * ocfs2_read_locked_inode(). It means we're locking an inode
@@ -1644,7 +1664,8 @@ int ocfs2_meta_lock_full(struct inode *inode,
          */
         if (inode->i_state & I_NEW) {
                 status = 0;
-                ocfs2_complete_lock_res_refresh(lockres, 0);
+                if (lockres)
+                        ocfs2_complete_lock_res_refresh(lockres, 0);
                 goto bail;
         }
 
@@ -1767,6 +1788,7 @@ void ocfs2_meta_unlock(struct inode *inode,
 {
         int level = ex ? LKM_EXMODE : LKM_PRMODE;
         struct ocfs2_lock_res *lockres = &OCFS2_I(inode)->ip_meta_lockres;
+        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
         mlog_entry_void();
 
@@ -1774,7 +1796,8 @@ void ocfs2_meta_unlock(struct inode *inode,
              (unsigned long long)OCFS2_I(inode)->ip_blkno,
              ex ? "EXMODE" : "PRMODE");
 
-        if (!ocfs2_is_hard_readonly(OCFS2_SB(inode->i_sb)))
+        if (!ocfs2_is_hard_readonly(OCFS2_SB(inode->i_sb)) &&
+            !ocfs2_mount_local(osb))
                 ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres, level);
 
         mlog_exit_void();
@@ -1783,7 +1806,7 @@ void ocfs2_meta_unlock(struct inode *inode,
 int ocfs2_super_lock(struct ocfs2_super *osb,
                      int ex)
 {
-        int status;
+        int status = 0;
         int level = ex ? LKM_EXMODE : LKM_PRMODE;
         struct ocfs2_lock_res *lockres = &osb->osb_super_lockres;
         struct buffer_head *bh;
@@ -1794,6 +1817,9 @@ int ocfs2_super_lock(struct ocfs2_super *osb,
         if (ocfs2_is_hard_readonly(osb))
                 return -EROFS;
 
+        if (ocfs2_mount_local(osb))
+                goto bail;
+
         status = ocfs2_cluster_lock(osb, lockres, level, 0, 0);
         if (status < 0) {
                 mlog_errno(status);
@@ -1832,7 +1858,8 @@ void ocfs2_super_unlock(struct ocfs2_super *osb,
         int level = ex ? LKM_EXMODE : LKM_PRMODE;
         struct ocfs2_lock_res *lockres = &osb->osb_super_lockres;
 
-        ocfs2_cluster_unlock(osb, lockres, level);
+        if (!ocfs2_mount_local(osb))
+                ocfs2_cluster_unlock(osb, lockres, level);
 }
 
 int ocfs2_rename_lock(struct ocfs2_super *osb)
@@ -1843,6 +1870,9 @@ int ocfs2_rename_lock(struct ocfs2_super *osb)
         if (ocfs2_is_hard_readonly(osb))
                 return -EROFS;
 
+        if (ocfs2_mount_local(osb))
+                return 0;
+
         status = ocfs2_cluster_lock(osb, lockres, LKM_EXMODE, 0, 0);
         if (status < 0)
                 mlog_errno(status);
@@ -1854,7 +1884,8 @@ void ocfs2_rename_unlock(struct ocfs2_super *osb)
 {
         struct ocfs2_lock_res *lockres = &osb->osb_rename_lockres;
 
-        ocfs2_cluster_unlock(osb, lockres, LKM_EXMODE);
+        if (!ocfs2_mount_local(osb))
+                ocfs2_cluster_unlock(osb, lockres, LKM_EXMODE);
 }
 
 int ocfs2_dentry_lock(struct dentry *dentry, int ex)
@@ -1869,6 +1900,9 @@ int ocfs2_dentry_lock(struct dentry *dentry, int ex)
         if (ocfs2_is_hard_readonly(osb))
                 return -EROFS;
 
+        if (ocfs2_mount_local(osb))
+                return 0;
+
         ret = ocfs2_cluster_lock(osb, &dl->dl_lockres, level, 0, 0);
         if (ret < 0)
                 mlog_errno(ret);
@@ -1882,7 +1916,8 @@ void ocfs2_dentry_unlock(struct dentry *dentry, int ex)
         struct ocfs2_dentry_lock *dl = dentry->d_fsdata;
         struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
 
-        ocfs2_cluster_unlock(osb, &dl->dl_lockres, level);
+        if (!ocfs2_mount_local(osb))
+                ocfs2_cluster_unlock(osb, &dl->dl_lockres, level);
 }
 
 /* Reference counting of the dlm debug structure. We want this because
@@ -2145,12 +2180,15 @@ static void ocfs2_dlm_shutdown_debug(struct ocfs2_super *osb)
 
 int ocfs2_dlm_init(struct ocfs2_super *osb)
 {
-        int status;
+        int status = 0;
         u32 dlm_key;
-        struct dlm_ctxt *dlm;
+        struct dlm_ctxt *dlm = NULL;
 
         mlog_entry_void();
 
+        if (ocfs2_mount_local(osb))
+                goto local;
+
         status = ocfs2_dlm_init_debug(osb);
         if (status < 0) {
                 mlog_errno(status);
@@ -2178,11 +2216,12 @@ int ocfs2_dlm_init(struct ocfs2_super *osb)
                 goto bail;
         }
 
+        dlm_register_eviction_cb(dlm, &osb->osb_eviction_cb);
+
+local:
         ocfs2_super_lock_res_init(&osb->osb_super_lockres, osb);
         ocfs2_rename_lock_res_init(&osb->osb_rename_lockres, osb);
 
-        dlm_register_eviction_cb(dlm, &osb->osb_eviction_cb);
-
         osb->dlm = dlm;
 
         status = 0;
diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c
index cbfd45a97a63..8fc52d6d0ce7 100644
--- a/fs/ocfs2/heartbeat.c
+++ b/fs/ocfs2/heartbeat.c
@@ -154,6 +154,9 @@ int ocfs2_register_hb_callbacks(struct ocfs2_super *osb)
 {
         int status;
 
+        if (ocfs2_mount_local(osb))
+                return 0;
+
         status = o2hb_register_callback(&osb->osb_hb_down);
         if (status < 0) {
                 mlog_errno(status);
@@ -172,6 +175,9 @@ void ocfs2_clear_hb_callbacks(struct ocfs2_super *osb)
 {
         int status;
 
+        if (ocfs2_mount_local(osb))
+                return;
+
         status = o2hb_unregister_callback(&osb->osb_hb_down);
         if (status < 0)
                 mlog_errno(status);
@@ -186,6 +192,9 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb)
         int ret;
         char *argv[5], *envp[3];
 
+        if (ocfs2_mount_local(osb))
+                return;
+
         if (!osb->uuid_str) {
                 /* This can happen if we don't get far enough in mount... */
                 mlog(0, "No UUID with which to stop heartbeat!\n\n");
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 42e361f3054f..e4d91493d7d7 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -423,7 +423,8 @@ static int ocfs2_read_locked_inode(struct inode *inode,
          * cluster lock before trusting anything anyway.
          */
         can_lock = !(args->fi_flags & OCFS2_FI_FLAG_SYSFILE)
-                && !(args->fi_flags & OCFS2_FI_FLAG_NOLOCK);
+                && !(args->fi_flags & OCFS2_FI_FLAG_NOLOCK)
+                && !ocfs2_mount_local(osb);
 
         /*
          * To maintain backwards compatibility with older versions of
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 1d7f4ab1e5ed..825cb0ae1b4c 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -144,8 +144,10 @@ handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs)
                         ocfs2_abort(osb->sb, "Detected aborted journal");
                         handle = ERR_PTR(-EROFS);
                 }
-        } else
-                atomic_inc(&(osb->journal->j_num_trans));
+        } else {
+                if (!ocfs2_mount_local(osb))
+                        atomic_inc(&(osb->journal->j_num_trans));
+        }
 
         return handle;
 }
@@ -507,9 +509,23 @@ void ocfs2_journal_shutdown(struct ocfs2_super *osb)
 
         BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0);
 
-        status = ocfs2_journal_toggle_dirty(osb, 0);
-        if (status < 0)
-                mlog_errno(status);
+        if (ocfs2_mount_local(osb)) {
+                journal_lock_updates(journal->j_journal);
+                status = journal_flush(journal->j_journal);
+                journal_unlock_updates(journal->j_journal);
+                if (status < 0)
+                        mlog_errno(status);
+        }
+
+        if (status == 0) {
+                /*
+                 * Do not toggle if flush was unsuccessful otherwise
+                 * will leave dirty metadata in a "clean" journal
+                 */
+                status = ocfs2_journal_toggle_dirty(osb, 0);
+                if (status < 0)
+                        mlog_errno(status);
+        }
 
         /* Shutdown the kernel journal system */
         journal_destroy(journal->j_journal);
@@ -549,7 +565,7 @@ static void ocfs2_clear_journal_error(struct super_block *sb,
         }
 }
 
-int ocfs2_journal_load(struct ocfs2_journal *journal)
+int ocfs2_journal_load(struct ocfs2_journal *journal, int local)
 {
         int status = 0;
         struct ocfs2_super *osb;
@@ -576,14 +592,18 @@ int ocfs2_journal_load(struct ocfs2_journal *journal)
         }
 
         /* Launch the commit thread */
-        osb->commit_task = kthread_run(ocfs2_commit_thread, osb, "ocfs2cmt");
-        if (IS_ERR(osb->commit_task)) {
-                status = PTR_ERR(osb->commit_task);
+        if (!local) {
+                osb->commit_task = kthread_run(ocfs2_commit_thread, osb,
+                                               "ocfs2cmt");
+                if (IS_ERR(osb->commit_task)) {
+                        status = PTR_ERR(osb->commit_task);
+                        osb->commit_task = NULL;
+                        mlog(ML_ERROR, "unable to launch ocfs2commit thread, "
+                             "error=%d", status);
+                        goto done;
+                }
+        } else
                 osb->commit_task = NULL;
-                mlog(ML_ERROR, "unable to launch ocfs2commit thread, error=%d",
-                     status);
-                goto done;
-        }
 
 done:
         mlog_exit(status);
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 899112ad8136..e1216364d191 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -157,7 +157,7 @@ int    ocfs2_journal_init(struct ocfs2_journal *journal,
 void   ocfs2_journal_shutdown(struct ocfs2_super *osb);
 int    ocfs2_journal_wipe(struct ocfs2_journal *journal,
                           int full);
-int    ocfs2_journal_load(struct ocfs2_journal *journal);
+int    ocfs2_journal_load(struct ocfs2_journal *journal, int local);
 int    ocfs2_check_journals_nolocks(struct ocfs2_super *osb);
 void   ocfs2_recovery_thread(struct ocfs2_super *osb,
                              int node_num);
@@ -174,6 +174,9 @@ static inline void ocfs2_checkpoint_inode(struct inode *inode)
 {
         struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
+        if (ocfs2_mount_local(osb))
+                return;
+
         if (!ocfs2_inode_fully_checkpointed(inode)) {
                 /* WARNING: This only kicks off a single
                  * checkpoint. If someone races you and adds more
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 69f85ae392dc..51b020447683 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -83,10 +83,12 @@ static struct vm_operations_struct ocfs2_file_vm_ops = {
 int ocfs2_mmap(struct file *file, struct vm_area_struct *vma)
 {
         int ret = 0, lock_level = 0;
+        struct ocfs2_super *osb = OCFS2_SB(file->f_dentry->d_inode->i_sb);
 
         /* We don't want to support shared writable mappings yet. */
-        if (((vma->vm_flags & VM_SHARED) || (vma->vm_flags & VM_MAYSHARE))
-            && ((vma->vm_flags & VM_WRITE) || (vma->vm_flags & VM_MAYWRITE))) {
+        if (!ocfs2_mount_local(osb) &&
+            ((vma->vm_flags & VM_SHARED) || (vma->vm_flags & VM_MAYSHARE)) &&
+            ((vma->vm_flags & VM_WRITE) || (vma->vm_flags & VM_MAYWRITE))) {
                 mlog(0, "disallow shared writable mmaps %lx\n", vma->vm_flags);
                 /* This is -EINVAL because generic_file_readonly_mmap
                  * returns it in a similar situation. */
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 21db45ddf144..9637039c2633 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -587,9 +587,11 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
         }
 
         ocfs2_inode_set_new(osb, inode);
-        status = ocfs2_create_new_inode_locks(inode);
-        if (status < 0)
-                mlog_errno(status);
+        if (!ocfs2_mount_local(osb)) {
+                status = ocfs2_create_new_inode_locks(inode);
+                if (status < 0)
+                        mlog_errno(status);
+        }
 
         status = 0; /* error in ocfs2_create_new_inode_locks is not
                      * critical */
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index b767fd7da6eb..db8e77cd35d3 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -349,6 +349,11 @@ static inline int ocfs2_is_soft_readonly(struct ocfs2_super *osb)
         return ret;
 }
 
+static inline int ocfs2_mount_local(struct ocfs2_super *osb)
+{
+        return (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT);
+}
+
 #define OCFS2_IS_VALID_DINODE(ptr)                                      \
         (!strcmp((ptr)->i_signature, OCFS2_INODE_SIGNATURE))
 
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 3330a5dc6be2..b5c68567077e 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -86,7 +86,7 @@
         OCFS2_SB(sb)->s_feature_incompat &= ~(mask)
 
 #define OCFS2_FEATURE_COMPAT_SUPP       0
-#define OCFS2_FEATURE_INCOMPAT_SUPP     0
+#define OCFS2_FEATURE_INCOMPAT_SUPP     OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT
 #define OCFS2_FEATURE_RO_COMPAT_SUPP    0
 
 /*
@@ -96,6 +96,18 @@
  */
 #define OCFS2_FEATURE_INCOMPAT_HEARTBEAT_DEV    0x0002
 
+/*
+ * tunefs sets this incompat flag before starting the resize and clears it
+ * at the end. This flag protects users from inadvertently mounting the fs
+ * after an aborted run without fsck-ing.
+ */
+#define OCFS2_FEATURE_INCOMPAT_RESIZE_INPROG    0x0004
+
+/* Used to denote a non-clustered volume */
+#define OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT      0x0008
+
+/* Support for sparse allocation in b-trees */
+#define OCFS2_FEATURE_INCOMPAT_SPARSE_ALLOC     0x0010
 
 /*
  * Flags on ocfs2_dinode.i_flags
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 4bf39540e652..a6d2f8cc165b 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -508,6 +508,27 @@ bail:
         return status;
 }
 
+static int ocfs2_verify_heartbeat(struct ocfs2_super *osb)
+{
+        if (ocfs2_mount_local(osb)) {
+                if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) {
+                        mlog(ML_ERROR, "Cannot heartbeat on a locally "
+                             "mounted device.\n");
+                        return -EINVAL;
+                }
+        }
+
+        if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) {
+                if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb)) {
+                        mlog(ML_ERROR, "Heartbeat has to be started to mount "
+                             "a read-write clustered device.\n");
+                        return -EINVAL;
+                }
+        }
+
+        return 0;
+}
+
 static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 {
         struct dentry *root;
@@ -516,16 +537,24 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
         struct inode *inode = NULL;
         struct ocfs2_super *osb = NULL;
         struct buffer_head *bh = NULL;
+        char nodestr[8];
 
         mlog_entry("%p, %p, %i", sb, data, silent);
 
-        /* for now we only have one cluster/node, make sure we see it
-         * in the heartbeat universe */
-        if (!o2hb_check_local_node_heartbeating()) {
+        if (!ocfs2_parse_options(sb, data, &parsed_opt, 0)) {
                 status = -EINVAL;
                 goto read_super_error;
         }
 
+        /* for now we only have one cluster/node, make sure we see it
+         * in the heartbeat universe */
+        if (parsed_opt & OCFS2_MOUNT_HB_LOCAL) {
+                if (!o2hb_check_local_node_heartbeating()) {
+                        status = -EINVAL;
+                        goto read_super_error;
+                }
+        }
+
         /* probe for superblock */
         status = ocfs2_sb_probe(sb, &bh, &sector_size);
         if (status < 0) {
@@ -541,11 +570,6 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
         }
         brelse(bh);
         bh = NULL;
-
-        if (!ocfs2_parse_options(sb, data, &parsed_opt, 0)) {
-                status = -EINVAL;
-                goto read_super_error;
-        }
         osb->s_mount_opt = parsed_opt;
 
         sb->s_magic = OCFS2_SUPER_MAGIC;
@@ -588,21 +612,16 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
         }
 
         if (!ocfs2_is_hard_readonly(osb)) {
-                /* If this isn't a hard readonly mount, then we need
-                 * to make sure that heartbeat is in a valid state,
-                 * and that we mark ourselves soft readonly is -oro
-                 * was specified. */
-                if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) {
-                        mlog(ML_ERROR, "No heartbeat for device (%s)\n",
-                             sb->s_id);
-                        status = -EINVAL;
-                        goto read_super_error;
-                }
-
                 if (sb->s_flags & MS_RDONLY)
                         ocfs2_set_ro_flag(osb, 0);
         }
 
+        status = ocfs2_verify_heartbeat(osb);
+        if (status < 0) {
+                mlog_errno(status);
+                goto read_super_error;
+        }
+
         osb->osb_debug_root = debugfs_create_dir(osb->uuid_str,
                                                  ocfs2_debugfs_root);
         if (!osb->osb_debug_root) {
@@ -635,9 +654,14 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 
         ocfs2_complete_mount_recovery(osb);
 
-        printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %d, slot %d) "
+        if (ocfs2_mount_local(osb))
+                snprintf(nodestr, sizeof(nodestr), "local");
+        else
+                snprintf(nodestr, sizeof(nodestr), "%d", osb->node_num);
+
+        printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) "
                "with %s data mode.\n",
-               osb->dev_str, osb->node_num, osb->slot_num,
+               osb->dev_str, nodestr, osb->slot_num,
                osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" :
                "ordered");
 
@@ -999,7 +1023,11 @@ static int ocfs2_fill_local_node_info(struct ocfs2_super *osb)
 
         /* XXX hold a ref on the node while mounte?  easy enough, if
          * desirable. */
-        osb->node_num = o2nm_this_node();
+        if (ocfs2_mount_local(osb))
+                osb->node_num = 0;
+        else
+                osb->node_num = o2nm_this_node();
+
         if (osb->node_num == O2NM_MAX_NODES) {
                 mlog(ML_ERROR, "could not find this host's node number\n");
                 status = -ENOENT;
@@ -1084,6 +1112,9 @@ static int ocfs2_mount_volume(struct super_block *sb)
                 goto leave;
         }
 
+        if (ocfs2_mount_local(osb))
+                goto leave;
+
         /* This should be sent *after* we recovered our journal as it
          * will cause other nodes to unmark us as needing
          * recovery. However, we need to send it *before* dropping the
@@ -1114,6 +1145,7 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
 {
         int tmp;
         struct ocfs2_super *osb = NULL;
+        char nodestr[8];
 
         mlog_entry("(0x%p)\n", sb);
 
@@ -1177,8 +1209,13 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
 
         atomic_set(&osb->vol_state, VOLUME_DISMOUNTED);
 
-        printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %d)\n",
-               osb->dev_str, osb->node_num);
+        if (ocfs2_mount_local(osb))
+                snprintf(nodestr, sizeof(nodestr), "local");
+        else
+                snprintf(nodestr, sizeof(nodestr), "%d", osb->node_num);
+
+        printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n",
+               osb->dev_str, nodestr);
 
         ocfs2_delete_osb(osb);
         kfree(osb);
@@ -1536,6 +1573,7 @@ static int ocfs2_check_volume(struct ocfs2_super *osb)
 {
         int status = 0;
         int dirty;
+        int local;
         struct ocfs2_dinode *local_alloc = NULL; /* only used if we
                                                   * recover
                                                   * ourselves. */
@@ -1563,8 +1601,10 @@ static int ocfs2_check_volume(struct ocfs2_super *osb)
                      "recovering volume.\n");
         }
 
+        local = ocfs2_mount_local(osb);
+
         /* will play back anything left in the journal. */
-        ocfs2_journal_load(osb->journal);
+        ocfs2_journal_load(osb->journal, local);
 
         if (dirty) {
                 /* recover my local alloc if we didn't unmount cleanly. */
diff --git a/fs/ocfs2/vote.c b/fs/ocfs2/vote.c
index 5b4dca79990b..0315a8b61ed6 100644
--- a/fs/ocfs2/vote.c
+++ b/fs/ocfs2/vote.c
@@ -1000,6 +1000,9 @@ int ocfs2_register_net_handlers(struct ocfs2_super *osb)
 {
         int status = 0;
 
+        if (ocfs2_mount_local(osb))
+                return 0;
+
         status = o2net_register_handler(OCFS2_MESSAGE_TYPE_RESPONSE,
                                         osb->net_key,
                                         sizeof(struct ocfs2_response_msg),
diff --git a/include/asm-arm/arch-pnx4008/i2c.h b/include/asm-arm/arch-pnx4008/i2c.h
new file mode 100644
index 000000000000..92e8d65006f7
--- /dev/null
+++ b/include/asm-arm/arch-pnx4008/i2c.h
@@ -0,0 +1,67 @@
+/*
+ * PNX4008-specific tweaks for I2C IP3204 block
+ *
+ * Author: Vitaly Wool <vwool@ru.mvista.com>
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#ifndef __ASM_ARCH_I2C_H__
+#define __ASM_ARCH_I2C_H__
+
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+
+enum {
+        mstatus_tdi = 0x00000001,
+        mstatus_afi = 0x00000002,
+        mstatus_nai = 0x00000004,
+        mstatus_drmi = 0x00000008,
+        mstatus_active = 0x00000020,
+        mstatus_scl = 0x00000040,
+        mstatus_sda = 0x00000080,
+        mstatus_rff = 0x00000100,
+        mstatus_rfe = 0x00000200,
+        mstatus_tff = 0x00000400,
+        mstatus_tfe = 0x00000800,
+};
+
+enum {
+        mcntrl_tdie = 0x00000001,
+        mcntrl_afie = 0x00000002,
+        mcntrl_naie = 0x00000004,
+        mcntrl_drmie = 0x00000008,
+        mcntrl_daie = 0x00000020,
+        mcntrl_rffie = 0x00000040,
+        mcntrl_tffie = 0x00000080,
+        mcntrl_reset = 0x00000100,
+        mcntrl_cdbmode = 0x00000400,
+};
+
+enum {
+        rw_bit = 1 << 0,
+        start_bit = 1 << 8,
+        stop_bit = 1 << 9,
+};
+
+#define I2C_REG_RX(a)   ((a)->ioaddr)           /* Rx FIFO reg (RO) */
+#define I2C_REG_TX(a)   ((a)->ioaddr)           /* Tx FIFO reg (WO) */
+#define I2C_REG_STS(a)  ((a)->ioaddr + 0x04)    /* Status reg (RO) */
+#define I2C_REG_CTL(a)  ((a)->ioaddr + 0x08)    /* Ctl reg */
+#define I2C_REG_CKL(a)  ((a)->ioaddr + 0x0c)    /* Clock divider low */
+#define I2C_REG_CKH(a)  ((a)->ioaddr + 0x10)    /* Clock divider high */
+#define I2C_REG_ADR(a)  ((a)->ioaddr + 0x14)    /* I2C address */
+#define I2C_REG_RFL(a)  ((a)->ioaddr + 0x18)    /* Rx FIFO level (RO) */
+#define I2C_REG_TFL(a)  ((a)->ioaddr + 0x1c)    /* Tx FIFO level (RO) */
+#define I2C_REG_RXB(a)  ((a)->ioaddr + 0x20)    /* Num of bytes Rx-ed (RO) */
+#define I2C_REG_TXB(a)  ((a)->ioaddr + 0x24)    /* Num of bytes Tx-ed (RO) */
+#define I2C_REG_TXS(a)  ((a)->ioaddr + 0x28)    /* Tx slave FIFO (RO) */
+#define I2C_REG_STFL(a) ((a)->ioaddr + 0x2c)    /* Tx slave FIFO level (RO) */
+
+#define HCLK_MHZ                13
+#define I2C_CHIP_NAME           "PNX4008-I2C"
+
+#endif                          /* __ASM_ARCH_I2C_H___ */
diff --git a/include/asm-i386/msr.h b/include/asm-i386/msr.h
index 5679d4993072..609a3899475c 100644
--- a/include/asm-i386/msr.h
+++ b/include/asm-i386/msr.h
@@ -100,6 +100,8 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val)
 
 #define MSR_P6_PERFCTR0         0xc1
 #define MSR_P6_PERFCTR1         0xc2
+#define MSR_FSB_FREQ            0xcd
+
 
 #define MSR_IA32_BBL_CR_CTL             0x119
 
@@ -130,6 +132,9 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val)
 #define MSR_IA32_PERF_STATUS            0x198
 #define MSR_IA32_PERF_CTL               0x199
 
+#define MSR_IA32_MPERF                  0xE7
+#define MSR_IA32_APERF                  0xE8
+
 #define MSR_IA32_THERM_CONTROL          0x19a
 #define MSR_IA32_THERM_INTERRUPT        0x19b
 #define MSR_IA32_THERM_STATUS           0x19c
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index 952783d35c7b..3227bc93d69b 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -189,6 +189,7 @@ static inline unsigned int cpuid_edx(unsigned int op)
 
 #define MSR_IA32_PERFCTR0      0xc1
 #define MSR_IA32_PERFCTR1      0xc2
+#define MSR_FSB_FREQ            0xcd
 
 #define MSR_MTRRcap             0x0fe
 #define MSR_IA32_BBL_CR_CTL        0x119
@@ -311,6 +312,9 @@ static inline unsigned int cpuid_edx(unsigned int op)
 #define MSR_IA32_PERF_STATUS            0x198
 #define MSR_IA32_PERF_CTL               0x199
 
+#define MSR_IA32_MPERF                  0xE7
+#define MSR_IA32_APERF                  0xE8
+
 #define MSR_IA32_THERM_CONTROL          0x19a
 #define MSR_IA32_THERM_INTERRUPT        0x19b
 #define MSR_IA32_THERM_STATUS           0x19c
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 538423d4a865..aca66984aafd 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -40,7 +40,7 @@ extern void __chk_io_ptr(void __iomem *);
 #error no compiler-gcc.h file for this gcc version
 #elif __GNUC__ == 4
 # include <linux/compiler-gcc4.h>
-#elif __GNUC__ == 3
+#elif __GNUC__ == 3 && __GNUC_MINOR__ >= 2
 # include <linux/compiler-gcc3.h>
 #else
 # error Sorry, your compiler is too old/not recognized.
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index a7f015027535..fef6f3d0a4a7 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -160,31 +160,6 @@ struct configfs_group_operations {
         void (*drop_item)(struct config_group *group, struct config_item *item);
 };
 
-
-
-/**
- * Use these macros to make defining attributes easier. See include/linux/device.h
- * for examples..
- */
-
-#if 0
-#define __ATTR(_name,_mode,_show,_store) { \
-        .attr = {.ca_name = __stringify(_name), .ca_mode = _mode, .ca_owner = THIS_MODULE },    \
-        .show   = _show,                                        \
-        .store  = _store,                                       \
-}
-
-#define __ATTR_RO(_name) { \
-        .attr   = { .ca_name = __stringify(_name), .ca_mode = 0444, .ca_owner = THIS_MODULE },  \
-        .show   = _name##_show, \
-}
-
-#define __ATTR_NULL { .attr = { .name = NULL } }
-
-#define attr_name(_attr) (_attr).attr.name
-#endif
-
-
 struct configfs_subsystem {
         struct config_group     su_group;
         struct semaphore        su_sem;
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 4ea39fee99c7..7f008f6bfdc3 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -172,6 +172,8 @@ extern int __cpufreq_driver_target(struct cpufreq_policy *policy,
                                    unsigned int relation);
 
 
+extern int cpufreq_driver_getavg(struct cpufreq_policy *policy);
+
 int cpufreq_register_governor(struct cpufreq_governor *governor);
 void cpufreq_unregister_governor(struct cpufreq_governor *governor);
 
@@ -204,6 +206,7 @@ struct cpufreq_driver {
         unsigned int    (*get)  (unsigned int cpu);
 
         /* optional */
+        unsigned int (*getavg)  (unsigned int cpu);
         int     (*exit)         (struct cpufreq_policy *policy);
         int     (*suspend)      (struct cpufreq_policy *policy, pm_message_t pmsg);
         int     (*resume)       (struct cpufreq_policy *policy);
diff --git a/include/linux/i2c-algo-bit.h b/include/linux/i2c-algo-bit.h
index c8f8df25c7e0..937da70cb4c4 100644
--- a/include/linux/i2c-algo-bit.h
+++ b/include/linux/i2c-algo-bit.h
@@ -26,9 +26,9 @@
 
 /* --- Defines for bit-adapters --------------------------------------- */
 /*
- * This struct contains the hw-dependent functions of bit-style adapters to 
+ * This struct contains the hw-dependent functions of bit-style adapters to
  * manipulate the line states, and to init any hw-specific features. This is
- * only used if you have more than one hw-type of adapter running. 
+ * only used if you have more than one hw-type of adapter running.
  */
 struct i2c_algo_bit_data {
         void *data;             /* private data for lowlevel routines */
@@ -44,6 +44,5 @@ struct i2c_algo_bit_data {
 };
 
 int i2c_bit_add_bus(struct i2c_adapter *);
-int i2c_bit_del_bus(struct i2c_adapter *);
 
 #endif /* _LINUX_I2C_ALGO_BIT_H */
diff --git a/include/linux/i2c-algo-ite.h b/include/linux/i2c-algo-ite.h
deleted file mode 100644
index 0073fe96c76e..000000000000
--- a/include/linux/i2c-algo-ite.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/* ------------------------------------------------------------------------- */
-/* i2c-algo-ite.h i2c driver algorithms for ITE IIC adapters                 */
-/* ------------------------------------------------------------------------- */
-/*   Copyright (C) 1995-97 Simon G. Vogl
-                   1998-99 Hans Berglund
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                */
-/* ------------------------------------------------------------------------- */
-
-/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
-   Frodo Looijaard <frodol@dds.nl> */
-
-/* Modifications by MontaVista Software, 2001
-   Changes made to support the ITE IIC peripheral */
-
-
-#ifndef I2C_ALGO_ITE_H
-#define I2C_ALGO_ITE_H 1
-
-#include <linux/types.h>
-
-/* Example of a sequential read request:
-        struct i2c_iic_msg s_msg; 
-
-        s_msg.addr=device_address;
-        s_msg.len=length;
-        s_msg.buf=buffer;
-        s_msg.waddr=word_address;
-        ioctl(file,I2C_SREAD, &s_msg);
- */
-#define I2C_SREAD       0x780   /* SREAD ioctl command */
-
-struct i2c_iic_msg {
-        __u16 addr;     /* device address */
-        __u16 waddr;    /* word address */
-        short len;      /* msg length */
-        char *buf;      /* pointer to msg data */
-};
-
-#ifdef __KERNEL__
-struct i2c_adapter;
-
-struct i2c_algo_iic_data {
-        void *data;             /* private data for lolevel routines    */
-        void (*setiic) (void *data, int ctl, int val);
-        int  (*getiic) (void *data, int ctl);
-        int  (*getown) (void *data);
-        int  (*getclock) (void *data);
-        void (*waitforpin) (void);     
-
-        /* local settings */
-        int udelay;
-        int mdelay;
-        int timeout;
-};
-
-int i2c_iic_add_bus(struct i2c_adapter *);
-int i2c_iic_del_bus(struct i2c_adapter *);
-#endif /* __KERNEL__ */
-#endif /* I2C_ALGO_ITE_H */
diff --git a/include/linux/i2c-algo-pca.h b/include/linux/i2c-algo-pca.h
index 226693e0d88b..fce47c051bb1 100644
--- a/include/linux/i2c-algo-pca.h
+++ b/include/linux/i2c-algo-pca.h
@@ -10,6 +10,5 @@ struct i2c_algo_pca_data {
 };
 
 int i2c_pca_add_bus(struct i2c_adapter *);
-int i2c_pca_del_bus(struct i2c_adapter *);
 
 #endif /* _LINUX_I2C_ALGO_PCA_H */
diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h
index 9908f3fc4839..994eb86f882c 100644
--- a/include/linux/i2c-algo-pcf.h
+++ b/include/linux/i2c-algo-pcf.h
@@ -31,7 +31,7 @@ struct i2c_algo_pcf_data {
         int  (*getpcf) (void *data, int ctl);
         int  (*getown) (void *data);
         int  (*getclock) (void *data);
-        void (*waitforpin) (void);     
+        void (*waitforpin) (void);
 
         /* local settings */
         int udelay;
@@ -39,6 +39,5 @@ struct i2c_algo_pcf_data {
 };
 
 int i2c_pcf_add_bus(struct i2c_adapter *);
-int i2c_pcf_del_bus(struct i2c_adapter *);
 
 #endif /* _LINUX_I2C_ALGO_PCF_H */
diff --git a/include/linux/i2c-algo-sgi.h b/include/linux/i2c-algo-sgi.h
index 4a0113d64064..3b7715024e69 100644
--- a/include/linux/i2c-algo-sgi.h
+++ b/include/linux/i2c-algo-sgi.h
@@ -22,6 +22,5 @@ struct i2c_algo_sgi_data {
 };
 
 int i2c_sgi_add_bus(struct i2c_adapter *);
-int i2c_sgi_del_bus(struct i2c_adapter *);
 
 #endif /* I2C_ALGO_SGI_H */
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 0f4cf34b6fa2..7ae3c3326643 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -1,7 +1,7 @@
 /* ------------------------------------------------------------------------- */
-/*                                                                           */
+/*                                                                           */
 /* i2c-id.h - identifier values for i2c drivers and adapters                 */
-/*                                                                           */
+/*                                                                           */
 /* ------------------------------------------------------------------------- */
 /*   Copyright (C) 1995-1999 Simon G. Vogl
 
@@ -40,10 +40,10 @@
 #define I2C_DRIVERID_SAA7120    11      /* video encoder                */
 #define I2C_DRIVERID_SAA7121    12      /* video encoder                */
 #define I2C_DRIVERID_SAA7185B   13      /* video encoder                */
-#define I2C_DRIVERID_CH7003     14      /* digital pc to tv encoder     */
+#define I2C_DRIVERID_CH7003     14      /* digital pc to tv encoder     */
 #define I2C_DRIVERID_PCF8574A   15      /* i2c expander - 8 bit in/out  */
 #define I2C_DRIVERID_PCF8582C   16      /* eeprom                       */
-#define I2C_DRIVERID_AT24Cxx    17      /* eeprom 1/2/4/8/16 K          */
+#define I2C_DRIVERID_AT24Cxx    17      /* eeprom 1/2/4/8/16 K          */
 #define I2C_DRIVERID_TEA6300    18      /* audio mixer                  */
 #define I2C_DRIVERID_BT829      19      /* pc to tv encoder             */
 #define I2C_DRIVERID_TDA9850    20      /* audio mixer                  */
@@ -82,9 +82,8 @@
 #define I2C_DRIVERID_STM41T00   52      /* real time clock              */
 #define I2C_DRIVERID_UDA1342    53      /* UDA1342 audio codec          */
 #define I2C_DRIVERID_ADV7170    54      /* video encoder                */
-#define I2C_DRIVERID_RADEON     55      /* I2C bus on Radeon boards     */
 #define I2C_DRIVERID_MAX1617    56      /* temp sensor                  */
-#define I2C_DRIVERID_SAA7191    57      /* video encoder                */
+#define I2C_DRIVERID_SAA7191    57      /* video decoder                */
 #define I2C_DRIVERID_INDYCAM    58      /* SGI IndyCam                  */
 #define I2C_DRIVERID_BT832      59      /* CMOS camera video processor  */
 #define I2C_DRIVERID_TDA9887    60      /* TDA988x IF-PLL demodulator   */
@@ -132,7 +131,6 @@
 #define I2C_DRIVERID_ADM1021 1008
 #define I2C_DRIVERID_ADM9240 1009
 #define I2C_DRIVERID_LTC1710 1010
-#define I2C_DRIVERID_ICSPLL 1012
 #define I2C_DRIVERID_BT869 1013
 #define I2C_DRIVERID_MAXILIFE 1014
 #define I2C_DRIVERID_MATORB 1015
@@ -165,7 +163,7 @@
  * ---- Adapter types ----------------------------------------------------
  */
 
-/* --- Bit algorithm adapters                                           */
+/* --- Bit algorithm adapters                                           */
 #define I2C_HW_B_LP             0x010000 /* Parallel port Philips style */
 #define I2C_HW_B_SER            0x010002 /* Serial line interface */
 #define I2C_HW_B_BT848          0x010005 /* BT848 video boards */
@@ -213,9 +211,6 @@
 /* --- MPC8xx PowerPC adapters                                          */
 #define I2C_HW_MPC8XX_EPON      0x110000 /* Eponymous MPC8xx I2C adapter */
 
-/* --- ITE based algorithms                                             */
-#define I2C_HW_I_IIC            0x080000 /* controller on the ITE */
-
 /* --- PowerPC on-chip adapters                                         */
 #define I2C_HW_OCP              0x120000 /* IBM on-chip I2C adapter */
 
diff --git a/include/linux/i2c-pnx.h b/include/linux/i2c-pnx.h
new file mode 100644
index 000000000000..e6e9c814da61
--- /dev/null
+++ b/include/linux/i2c-pnx.h
@@ -0,0 +1,43 @@
+/*
+ * Header file for I2C support on PNX010x/4008.
+ *
+ * Author: Dennis Kovalev <dkovalev@ru.mvista.com>
+ *
+ * 2004-2006 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#ifndef __I2C_PNX_H__
+#define __I2C_PNX_H__
+
+#include <asm/arch/i2c.h>
+
+struct i2c_pnx_mif {
+        int                     ret;            /* Return value */
+        int                     mode;           /* Interface mode */
+        struct completion       complete;       /* I/O completion */
+        struct timer_list       timer;          /* Timeout */
+        char *                  buf;            /* Data buffer */
+        int                     len;            /* Length of data buffer */
+};
+
+struct i2c_pnx_algo_data {
+        u32                     base;
+        u32                     ioaddr;
+        int                     irq;
+        struct i2c_pnx_mif      mif;
+        int                     last;
+};
+
+struct i2c_pnx_data {
+        int (*suspend) (struct platform_device *pdev, pm_message_t state);
+        int (*resume) (struct platform_device *pdev);
+        u32 (*calculate_input_freq) (struct platform_device *pdev);
+        int (*set_clock_run) (struct platform_device *pdev);
+        int (*set_clock_stop) (struct platform_device *pdev);
+        struct i2c_adapter *adapter;
+};
+
+#endif /* __I2C_PNX_H__ */
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 9b5d04768c2c..71e50d3e492f 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -1,7 +1,7 @@
 /* ------------------------------------------------------------------------- */
-/*                                                                           */
+/*                                                                           */
 /* i2c.h - definitions for the i2c-bus interface                             */
-/*                                                                           */
+/*                                                                           */
 /* ------------------------------------------------------------------------- */
 /*   Copyright (C) 1995-2000 Simon G. Vogl
 
@@ -27,7 +27,7 @@
 #define _LINUX_I2C_H
 
 #include <linux/types.h>
-#ifdef __KERNEL__ 
+#ifdef __KERNEL__
 #include <linux/module.h>
 #include <linux/i2c-id.h>
 #include <linux/mod_devicetable.h>
@@ -53,8 +53,8 @@ union i2c_smbus_data;
 
 /*
  * The master routines are the ones normally used to transmit data to devices
- * on a bus (or read from them). Apart from two basic transfer functions to 
- * transmit one message at a time, a more complex version can be used to 
+ * on a bus (or read from them). Apart from two basic transfer functions to
+ * transmit one message at a time, a more complex version can be used to
  * transmit an arbitrary number of messages without interruption.
  */
 extern int i2c_master_send(struct i2c_client *,const char* ,int);
@@ -67,10 +67,10 @@ extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 
 /* This is the very generalized SMBus access routine. You probably do not
    want to use this, though; one of the functions below may be much easier,
-   and probably just as fast. 
+   and probably just as fast.
    Note that we use i2c_adapter here, because you do not need a specific
    smbus adapter to call this function. */
-extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr, 
+extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr,
                            unsigned short flags,
                            char read_write, u8 command, int size,
                            union i2c_smbus_data * data);
@@ -112,14 +112,14 @@ struct i2c_driver {
 
         /* Notifies the driver that a new bus has appeared. This routine
          * can be used by the driver to test if the bus meets its conditions
-         * & seek for the presence of the chip(s) it supports. If found, it 
+         * & seek for the presence of the chip(s) it supports. If found, it
          * registers the client(s) that are on the bus to the i2c admin. via
          * i2c_attach_client.
          */
         int (*attach_adapter)(struct i2c_adapter *);
         int (*detach_adapter)(struct i2c_adapter *);
 
-        /* tells the driver that a client is about to be deleted & gives it 
+        /* tells the driver that a client is about to be deleted & gives it
          * the chance to remove its private data. Also, if the client struct
          * has been dynamically allocated by the driver in the function above,
          * it must be freed here.
@@ -139,13 +139,13 @@ struct i2c_driver {
 #define I2C_NAME_SIZE   50
 
 /*
- * i2c_client identifies a single device (i.e. chip) that is connected to an 
+ * i2c_client identifies a single device (i.e. chip) that is connected to an
  * i2c bus. The behaviour is defined by the routines of the driver. This
  * function is mainly used for lookup & other admin. functions.
  */
 struct i2c_client {
         unsigned int flags;             /* div., see below              */
-        unsigned short addr;            /* chip address - NOTE: 7bit    */
+        unsigned short addr;            /* chip address - NOTE: 7bit    */
                                         /* addresses are stored in the  */
                                         /* _LOWER_ 7 bits               */
         struct i2c_adapter *adapter;    /* the adapter we sit on        */
@@ -182,14 +182,14 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
  */
 struct i2c_algorithm {
         /* If an adapter algorithm can't do I2C-level access, set master_xfer
-           to NULL. If an adapter algorithm can do SMBus access, set 
+           to NULL. If an adapter algorithm can do SMBus access, set
            smbus_xfer. If set to NULL, the SMBus protocol is simulated
            using common I2C messages */
         /* master_xfer should return the number of messages successfully
            processed, or a negative value on error */
-        int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs, 
+        int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs,
                            int num);
-        int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, 
+        int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr,
                            unsigned short flags, char read_write,
                            u8 command, int size, union i2c_smbus_data * data);
 
@@ -216,6 +216,7 @@ struct i2c_adapter {
         int (*client_unregister)(struct i2c_client *);
 
         /* data fields that are valid for all devices   */
+        u8 level;                       /* nesting level for lockdep */
         struct mutex bus_lock;
         struct mutex clist_lock;
 
@@ -316,7 +317,7 @@ extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
  * It will only call found_proc if some client is connected at the
  * specific address (unless a 'force' matched);
  */
-extern int i2c_probe(struct i2c_adapter *adapter, 
+extern int i2c_probe(struct i2c_adapter *adapter,
                 struct i2c_client_address_data *address_data,
                 int (*found_proc) (struct i2c_adapter *, int, int));
 
@@ -352,15 +353,15 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap)
  */
 struct i2c_msg {
         __u16 addr;     /* slave address                        */
-        __u16 flags;            
+        __u16 flags;
 #define I2C_M_TEN       0x10    /* we have a ten bit chip address       */
 #define I2C_M_RD        0x01
 #define I2C_M_NOSTART   0x4000
 #define I2C_M_REV_DIR_ADDR      0x2000
 #define I2C_M_IGNORE_NAK        0x1000
 #define I2C_M_NO_RD_ACK         0x0800
-        __u16 len;              /* msg length                           */
-        __u8 *buf;              /* pointer to msg data                  */
+        __u16 len;              /* msg length                           */
+        __u8 *buf;              /* pointer to msg data                  */
 };
 
 /* To determine what functionality is present */
@@ -370,16 +371,16 @@ struct i2c_msg {
 #define I2C_FUNC_PROTOCOL_MANGLING      0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
 #define I2C_FUNC_SMBUS_HWPEC_CALC       0x00000008 /* SMBus 2.0 */
 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL  0x00008000 /* SMBus 2.0 */
-#define I2C_FUNC_SMBUS_QUICK            0x00010000 
-#define I2C_FUNC_SMBUS_READ_BYTE        0x00020000 
-#define I2C_FUNC_SMBUS_WRITE_BYTE       0x00040000 
-#define I2C_FUNC_SMBUS_READ_BYTE_DATA   0x00080000 
-#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA  0x00100000 
-#define I2C_FUNC_SMBUS_READ_WORD_DATA   0x00200000 
-#define I2C_FUNC_SMBUS_WRITE_WORD_DATA  0x00400000 
-#define I2C_FUNC_SMBUS_PROC_CALL        0x00800000 
-#define I2C_FUNC_SMBUS_READ_BLOCK_DATA  0x01000000 
-#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 
+#define I2C_FUNC_SMBUS_QUICK            0x00010000
+#define I2C_FUNC_SMBUS_READ_BYTE        0x00020000
+#define I2C_FUNC_SMBUS_WRITE_BYTE       0x00040000
+#define I2C_FUNC_SMBUS_READ_BYTE_DATA   0x00080000
+#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA  0x00100000
+#define I2C_FUNC_SMBUS_READ_WORD_DATA   0x00200000
+#define I2C_FUNC_SMBUS_WRITE_WORD_DATA  0x00400000
+#define I2C_FUNC_SMBUS_PROC_CALL        0x00800000
+#define I2C_FUNC_SMBUS_READ_BLOCK_DATA  0x01000000
+#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK   0x04000000 /* I2C-like block xfer  */
 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK  0x08000000 /* w/ 1-byte reg. addr. */
 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2  0x10000000 /* I2C-like block xfer  */
@@ -406,10 +407,10 @@ struct i2c_msg {
                              I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
                              I2C_FUNC_SMBUS_I2C_BLOCK)
 
-/* 
- * Data for SMBus Messages 
+/*
+ * Data for SMBus Messages
  */
-#define I2C_SMBUS_BLOCK_MAX     32      /* As specified in SMBus standard */    
+#define I2C_SMBUS_BLOCK_MAX     32      /* As specified in SMBus standard */
 union i2c_smbus_data {
         __u8 byte;
         __u16 word;
@@ -421,11 +422,11 @@ union i2c_smbus_data {
 #define I2C_SMBUS_READ  1
 #define I2C_SMBUS_WRITE 0
 
-/* SMBus transaction types (size parameter in the above functions) 
+/* SMBus transaction types (size parameter in the above functions)
    Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */
 #define I2C_SMBUS_QUICK             0
 #define I2C_SMBUS_BYTE              1
-#define I2C_SMBUS_BYTE_DATA         2 
+#define I2C_SMBUS_BYTE_DATA         2
 #define I2C_SMBUS_WORD_DATA         3
 #define I2C_SMBUS_PROC_CALL         4
 #define I2C_SMBUS_BLOCK_DATA        5
@@ -434,15 +435,15 @@ union i2c_smbus_data {
 
 
 /* ----- commands for the ioctl like i2c_command call:
- * note that additional calls are defined in the algorithm and hw 
- *      dependent layers - these can be listed here, or see the 
+ * note that additional calls are defined in the algorithm and hw
+ *      dependent layers - these can be listed here, or see the
  *      corresponding header files.
  */
                                 /* -> bit-adapter specific ioctls       */
 #define I2C_RETRIES     0x0701  /* number of times a device address      */
                                 /* should be polled when not            */
-                                /* acknowledging                        */
-#define I2C_TIMEOUT     0x0702  /* set timeout - call with int          */
+                                /* acknowledging                        */
+#define I2C_TIMEOUT     0x0702  /* set timeout - call with int          */
 
 
 /* this is for i2c-dev.c        */
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 6d8846e7be6d..81480e613467 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -11,7 +11,7 @@
  **  the sysctl() binary interface.  Do *NOT* change the
  **  numbering of any existing values here, and do not change
  **  any numbers within any one set of values.  If you have to
- **  have to redefine an existing interface, use a new number for it.
+ **  redefine an existing interface, use a new number for it.
  **  The kernel will then return -ENOTDIR to any application using
  **  the old binary interface.
  **
diff --git a/include/rdma/ib_marshall.h b/include/rdma/ib_marshall.h
index 66bf4d7d0dfb..db037205c9e8 100644
--- a/include/rdma/ib_marshall.h
+++ b/include/rdma/ib_marshall.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005 Intel Corporation.  All rights reserved.
+ * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -41,6 +41,9 @@
 void ib_copy_qp_attr_to_user(struct ib_uverbs_qp_attr *dst,
                              struct ib_qp_attr *src);
 
+void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
+                             struct ib_ah_attr *src);
+
 void ib_copy_path_rec_to_user(struct ib_user_path_rec *dst,
                               struct ib_sa_path_rec *src);
 
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 8eacc3510993..fd2353fa7e12 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -43,6 +43,8 @@
 
 #include <linux/types.h>
 #include <linux/device.h>
+#include <linux/mm.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/atomic.h>
 #include <asm/scatterlist.h>
@@ -848,6 +850,49 @@ struct ib_cache {
         u8                     *lmc_cache;
 };
 
+struct ib_dma_mapping_ops {
+        int             (*mapping_error)(struct ib_device *dev,
+                                         u64 dma_addr);
+        u64             (*map_single)(struct ib_device *dev,
+                                      void *ptr, size_t size,
+                                      enum dma_data_direction direction);
+        void            (*unmap_single)(struct ib_device *dev,
+                                        u64 addr, size_t size,
+                                        enum dma_data_direction direction);
+        u64             (*map_page)(struct ib_device *dev,
+                                    struct page *page, unsigned long offset,
+                                    size_t size,
+                                    enum dma_data_direction direction);
+        void            (*unmap_page)(struct ib_device *dev,
+                                      u64 addr, size_t size,
+                                      enum dma_data_direction direction);
+        int             (*map_sg)(struct ib_device *dev,
+                                  struct scatterlist *sg, int nents,
+                                  enum dma_data_direction direction);
+        void            (*unmap_sg)(struct ib_device *dev,
+                                    struct scatterlist *sg, int nents,
+                                    enum dma_data_direction direction);
+        u64             (*dma_address)(struct ib_device *dev,
+                                       struct scatterlist *sg);
+        unsigned int    (*dma_len)(struct ib_device *dev,
+                                   struct scatterlist *sg);
+        void            (*sync_single_for_cpu)(struct ib_device *dev,
+                                               u64 dma_handle,
+                                               size_t size,
+                                               enum dma_data_direction dir);
+        void            (*sync_single_for_device)(struct ib_device *dev,
+                                                  u64 dma_handle,
+                                                  size_t size,
+                                                  enum dma_data_direction dir);
+        void            *(*alloc_coherent)(struct ib_device *dev,
+                                           size_t size,
+                                           u64 *dma_handle,
+                                           gfp_t flag);
+        void            (*free_coherent)(struct ib_device *dev,
+                                         size_t size, void *cpu_addr,
+                                         u64 dma_handle);
+};
+
 struct iw_cm_verbs;
 
 struct ib_device {
@@ -992,6 +1037,8 @@ struct ib_device {
                                                   struct ib_mad *in_mad,
                                                   struct ib_mad *out_mad);
 
+        struct ib_dma_mapping_ops   *dma_ops;
+
         struct module               *owner;
         struct class_device          class_dev;
         struct kobject               ports_parent;
@@ -1395,10 +1442,216 @@ static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt)
  *   usable for DMA.
  * @pd: The protection domain associated with the memory region.
  * @mr_access_flags: Specifies the memory access rights.
+ *
+ * Note that the ib_dma_*() functions defined below must be used
+ * to create/destroy addresses used with the Lkey or Rkey returned
+ * by ib_get_dma_mr().
  */
 struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags);
 
 /**
+ * ib_dma_mapping_error - check a DMA addr for error
+ * @dev: The device for which the dma_addr was created
+ * @dma_addr: The DMA address to check
+ */
+static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
+{
+        return dev->dma_ops ?
+                dev->dma_ops->mapping_error(dev, dma_addr) :
+                dma_mapping_error(dma_addr);
+}
+
+/**
+ * ib_dma_map_single - Map a kernel virtual address to DMA address
+ * @dev: The device for which the dma_addr is to be created
+ * @cpu_addr: The kernel virtual address
+ * @size: The size of the region in bytes
+ * @direction: The direction of the DMA
+ */
+static inline u64 ib_dma_map_single(struct ib_device *dev,
+                                    void *cpu_addr, size_t size,
+                                    enum dma_data_direction direction)
+{
+        return dev->dma_ops ?
+                dev->dma_ops->map_single(dev, cpu_addr, size, direction) :
+                dma_map_single(dev->dma_device, cpu_addr, size, direction);
+}
+
+/**
+ * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single()
+ * @dev: The device for which the DMA address was created
+ * @addr: The DMA address
+ * @size: The size of the region in bytes
+ * @direction: The direction of the DMA
+ */
+static inline void ib_dma_unmap_single(struct ib_device *dev,
+                                       u64 addr, size_t size,
+                                       enum dma_data_direction direction)
+{
+        dev->dma_ops ?
+                dev->dma_ops->unmap_single(dev, addr, size, direction) :
+                dma_unmap_single(dev->dma_device, addr, size, direction);
+}
+
+/**
+ * ib_dma_map_page - Map a physical page to DMA address
+ * @dev: The device for which the dma_addr is to be created
+ * @page: The page to be mapped
+ * @offset: The offset within the page
+ * @size: The size of the region in bytes
+ * @direction: The direction of the DMA
+ */
+static inline u64 ib_dma_map_page(struct ib_device *dev,
+                                  struct page *page,
+                                  unsigned long offset,
+                                  size_t size,
+                                         enum dma_data_direction direction)
+{
+        return dev->dma_ops ?
+                dev->dma_ops->map_page(dev, page, offset, size, direction) :
+                dma_map_page(dev->dma_device, page, offset, size, direction);
+}
+
+/**
+ * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page()
+ * @dev: The device for which the DMA address was created
+ * @addr: The DMA address
+ * @size: The size of the region in bytes
+ * @direction: The direction of the DMA
+ */
+static inline void ib_dma_unmap_page(struct ib_device *dev,
+                                     u64 addr, size_t size,
+                                     enum dma_data_direction direction)
+{
+        dev->dma_ops ?
+                dev->dma_ops->unmap_page(dev, addr, size, direction) :
+                dma_unmap_page(dev->dma_device, addr, size, direction);
+}
+
+/**
+ * ib_dma_map_sg - Map a scatter/gather list to DMA addresses
+ * @dev: The device for which the DMA addresses are to be created
+ * @sg: The array of scatter/gather entries
+ * @nents: The number of scatter/gather entries
+ * @direction: The direction of the DMA
+ */
+static inline int ib_dma_map_sg(struct ib_device *dev,
+                                struct scatterlist *sg, int nents,
+                                enum dma_data_direction direction)
+{
+        return dev->dma_ops ?
+                dev->dma_ops->map_sg(dev, sg, nents, direction) :
+                dma_map_sg(dev->dma_device, sg, nents, direction);
+}
+
+/**
+ * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses
+ * @dev: The device for which the DMA addresses were created
+ * @sg: The array of scatter/gather entries
+ * @nents: The number of scatter/gather entries
+ * @direction: The direction of the DMA
+ */
+static inline void ib_dma_unmap_sg(struct ib_device *dev,
+                                   struct scatterlist *sg, int nents,
+                                   enum dma_data_direction direction)
+{
+        dev->dma_ops ?
+                dev->dma_ops->unmap_sg(dev, sg, nents, direction) :
+                dma_unmap_sg(dev->dma_device, sg, nents, direction);
+}
+
+/**
+ * ib_sg_dma_address - Return the DMA address from a scatter/gather entry
+ * @dev: The device for which the DMA addresses were created
+ * @sg: The scatter/gather entry
+ */
+static inline u64 ib_sg_dma_address(struct ib_device *dev,
+                                    struct scatterlist *sg)
+{
+        return dev->dma_ops ?
+                dev->dma_ops->dma_address(dev, sg) : sg_dma_address(sg);
+}
+
+/**
+ * ib_sg_dma_len - Return the DMA length from a scatter/gather entry
+ * @dev: The device for which the DMA addresses were created
+ * @sg: The scatter/gather entry
+ */
+static inline unsigned int ib_sg_dma_len(struct ib_device *dev,
+                                         struct scatterlist *sg)
+{
+        return dev->dma_ops ?
+                dev->dma_ops->dma_len(dev, sg) : sg_dma_len(sg);
+}
+
+/**
+ * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU
+ * @dev: The device for which the DMA address was created
+ * @addr: The DMA address
+ * @size: The size of the region in bytes
+ * @dir: The direction of the DMA
+ */
+static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev,
+                                              u64 addr,
+                                              size_t size,
+                                              enum dma_data_direction dir)
+{
+        dev->dma_ops ?
+                dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir) :
+                dma_sync_single_for_cpu(dev->dma_device, addr, size, dir);
+}
+
+/**
+ * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device
+ * @dev: The device for which the DMA address was created
+ * @addr: The DMA address
+ * @size: The size of the region in bytes
+ * @dir: The direction of the DMA
+ */
+static inline void ib_dma_sync_single_for_device(struct ib_device *dev,
+                                                 u64 addr,
+                                                 size_t size,
+                                                 enum dma_data_direction dir)
+{
+        dev->dma_ops ?
+                dev->dma_ops->sync_single_for_device(dev, addr, size, dir) :
+                dma_sync_single_for_device(dev->dma_device, addr, size, dir);
+}
+
+/**
+ * ib_dma_alloc_coherent - Allocate memory and map it for DMA
+ * @dev: The device for which the DMA address is requested
+ * @size: The size of the region to allocate in bytes
+ * @dma_handle: A pointer for returning the DMA address of the region
+ * @flag: memory allocator flags
+ */
+static inline void *ib_dma_alloc_coherent(struct ib_device *dev,
+                                           size_t size,
+                                           u64 *dma_handle,
+                                           gfp_t flag)
+{
+        return dev->dma_ops ?
+                dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag) :
+                dma_alloc_coherent(dev->dma_device, size, dma_handle, flag);
+}
+
+/**
+ * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent()
+ * @dev: The device for which the DMA addresses were allocated
+ * @size: The size of the region
+ * @cpu_addr: the address returned by ib_dma_alloc_coherent()
+ * @dma_handle: the DMA address returned by ib_dma_alloc_coherent()
+ */
+static inline void ib_dma_free_coherent(struct ib_device *dev,
+                                        size_t size, void *cpu_addr,
+                                        u64 dma_handle)
+{
+        dev->dma_ops ?
+                dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle) :
+                dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle);
+}
+
+/**
  * ib_reg_phys_mr - Prepares a virtually addressed memory region for use
  *   by an HCA.
  * @pd: The protection domain associated assigned to the registered region.
diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h
index deb5a0a4cee5..36cd8a8526a0 100644
--- a/include/rdma/rdma_cm.h
+++ b/include/rdma/rdma_cm.h
@@ -77,11 +77,34 @@ struct rdma_route {
         int num_paths;
 };
 
+struct rdma_conn_param {
+        const void *private_data;
+        u8 private_data_len;
+        u8 responder_resources;
+        u8 initiator_depth;
+        u8 flow_control;
+        u8 retry_count;         /* ignored when accepting */
+        u8 rnr_retry_count;
+        /* Fields below ignored if a QP is created on the rdma_cm_id. */
+        u8 srq;
+        u32 qp_num;
+};
+
+struct rdma_ud_param {
+        const void *private_data;
+        u8 private_data_len;
+        struct ib_ah_attr ah_attr;
+        u32 qp_num;
+        u32 qkey;
+};
+
 struct rdma_cm_event {
         enum rdma_cm_event_type  event;
         int                      status;
-        void                    *private_data;
-        u8                       private_data_len;
+        union {
+                struct rdma_conn_param  conn;
+                struct rdma_ud_param    ud;
+        } param;
 };
 
 struct rdma_cm_id;
@@ -204,25 +227,17 @@ void rdma_destroy_qp(struct rdma_cm_id *id);
 int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
                        int *qp_attr_mask);
 
-struct rdma_conn_param {
-        const void *private_data;
-        u8 private_data_len;
-        u8 responder_resources;
-        u8 initiator_depth;
-        u8 flow_control;
-        u8 retry_count;         /* ignored when accepting */
-        u8 rnr_retry_count;
-        /* Fields below ignored if a QP is created on the rdma_cm_id. */
-        u8 srq;
-        u32 qp_num;
-        enum ib_qp_type qp_type;
-};
-
 /**
  * rdma_connect - Initiate an active connection request.
+ * @id: Connection identifier to connect.
+ * @conn_param: Connection information used for connected QPs.
  *
  * Users must have resolved a route for the rdma_cm_id to connect with
  * by having called rdma_resolve_route before calling this routine.
+ *
+ * This call will either connect to a remote QP or obtain remote QP
+ * information for unconnected rdma_cm_id's.  The actual operation is
+ * based on the rdma_cm_id's port space.
  */
 int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param);
 
@@ -253,6 +268,21 @@ int rdma_listen(struct rdma_cm_id *id, int backlog);
 int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param);
 
 /**
+ * rdma_notify - Notifies the RDMA CM of an asynchronous event that has
+ * occurred on the connection.
+ * @id: Connection identifier to transition to established.
+ * @event: Asynchronous event.
+ *
+ * This routine should be invoked by users to notify the CM of relevant
+ * communication events.  Events that should be reported to the CM and
+ * when to report them are:
+ *
+ * IB_EVENT_COMM_EST - Used when a message is received on a connected
+ *    QP before an RTU has been received.
+ */
+int rdma_notify(struct rdma_cm_id *id, enum ib_event_type event);
+
+/**
  * rdma_reject - Called to reject a connection request or response.
  */
 int rdma_reject(struct rdma_cm_id *id, const void *private_data,
diff --git a/include/rdma/rdma_cm_ib.h b/include/rdma/rdma_cm_ib.h
index e8c3af1804d4..9b176df1d667 100644
--- a/include/rdma/rdma_cm_ib.h
+++ b/include/rdma/rdma_cm_ib.h
@@ -44,4 +44,7 @@
 int rdma_set_ib_paths(struct rdma_cm_id *id,
                       struct ib_sa_path_rec *path_rec, int num_paths);
 
+/* Global qkey for UD QPs and multicast groups. */
+#define RDMA_UD_QKEY 0x01234567
+
 #endif /* RDMA_CM_IB_H */
diff --git a/include/rdma/rdma_user_cm.h b/include/rdma/rdma_user_cm.h
new file mode 100644
index 000000000000..9572ab8eeac1
--- /dev/null
+++ b/include/rdma/rdma_user_cm.h
@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef RDMA_USER_CM_H
+#define RDMA_USER_CM_H
+
+#include <linux/types.h>
+#include <linux/in6.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_user_sa.h>
+
+#define RDMA_USER_CM_ABI_VERSION        3
+
+#define RDMA_MAX_PRIVATE_DATA           256
+
+enum {
+        RDMA_USER_CM_CMD_CREATE_ID,
+        RDMA_USER_CM_CMD_DESTROY_ID,
+        RDMA_USER_CM_CMD_BIND_ADDR,
+        RDMA_USER_CM_CMD_RESOLVE_ADDR,
+        RDMA_USER_CM_CMD_RESOLVE_ROUTE,
+        RDMA_USER_CM_CMD_QUERY_ROUTE,
+        RDMA_USER_CM_CMD_CONNECT,
+        RDMA_USER_CM_CMD_LISTEN,
+        RDMA_USER_CM_CMD_ACCEPT,
+        RDMA_USER_CM_CMD_REJECT,
+        RDMA_USER_CM_CMD_DISCONNECT,
+        RDMA_USER_CM_CMD_INIT_QP_ATTR,
+        RDMA_USER_CM_CMD_GET_EVENT,
+        RDMA_USER_CM_CMD_GET_OPTION,
+        RDMA_USER_CM_CMD_SET_OPTION,
+        RDMA_USER_CM_CMD_NOTIFY
+};
+
+/*
+ * command ABI structures.
+ */
+struct rdma_ucm_cmd_hdr {
+        __u32 cmd;
+        __u16 in;
+        __u16 out;
+};
+
+struct rdma_ucm_create_id {
+        __u64 uid;
+        __u64 response;
+        __u16 ps;
+        __u8  reserved[6];
+};
+
+struct rdma_ucm_create_id_resp {
+        __u32 id;
+};
+
+struct rdma_ucm_destroy_id {
+        __u64 response;
+        __u32 id;
+        __u32 reserved;
+};
+
+struct rdma_ucm_destroy_id_resp {
+        __u32 events_reported;
+};
+
+struct rdma_ucm_bind_addr {
+        __u64 response;
+        struct sockaddr_in6 addr;
+        __u32 id;
+};
+
+struct rdma_ucm_resolve_addr {
+        struct sockaddr_in6 src_addr;
+        struct sockaddr_in6 dst_addr;
+        __u32 id;
+        __u32 timeout_ms;
+};
+
+struct rdma_ucm_resolve_route {
+        __u32 id;
+        __u32 timeout_ms;
+};
+
+struct rdma_ucm_query_route {
+        __u64 response;
+        __u32 id;
+        __u32 reserved;
+};
+
+struct rdma_ucm_query_route_resp {
+        __u64 node_guid;
+        struct ib_user_path_rec ib_route[2];
+        struct sockaddr_in6 src_addr;
+        struct sockaddr_in6 dst_addr;
+        __u32 num_paths;
+        __u8 port_num;
+        __u8 reserved[3];
+};
+
+struct rdma_ucm_conn_param {
+        __u32 qp_num;
+        __u32 reserved;
+        __u8  private_data[RDMA_MAX_PRIVATE_DATA];
+        __u8  private_data_len;
+        __u8  srq;
+        __u8  responder_resources;
+        __u8  initiator_depth;
+        __u8  flow_control;
+        __u8  retry_count;
+        __u8  rnr_retry_count;
+        __u8  valid;
+};
+
+struct rdma_ucm_ud_param {
+        __u32 qp_num;
+        __u32 qkey;
+        struct ib_uverbs_ah_attr ah_attr;
+        __u8  private_data[RDMA_MAX_PRIVATE_DATA];
+        __u8  private_data_len;
+        __u8  reserved[7];
+};
+
+struct rdma_ucm_connect {
+        struct rdma_ucm_conn_param conn_param;
+        __u32 id;
+        __u32 reserved;
+};
+
+struct rdma_ucm_listen {
+        __u32 id;
+        __u32 backlog;
+};
+
+struct rdma_ucm_accept {
+        __u64 uid;
+        struct rdma_ucm_conn_param conn_param;
+        __u32 id;
+        __u32 reserved;
+};
+
+struct rdma_ucm_reject {
+        __u32 id;
+        __u8  private_data_len;
+        __u8  reserved[3];
+        __u8  private_data[RDMA_MAX_PRIVATE_DATA];
+};
+
+struct rdma_ucm_disconnect {
+        __u32 id;
+};
+
+struct rdma_ucm_init_qp_attr {
+        __u64 response;
+        __u32 id;
+        __u32 qp_state;
+};
+
+struct rdma_ucm_notify {
+        __u32 id;
+        __u32 event;
+};
+
+struct rdma_ucm_get_event {
+        __u64 response;
+};
+
+struct rdma_ucm_event_resp {
+        __u64 uid;
+        __u32 id;
+        __u32 event;
+        __u32 status;
+        union {
+                struct rdma_ucm_conn_param conn;
+                struct rdma_ucm_ud_param   ud;
+        } param;
+};
+
+#endif /* RDMA_USER_CM_H */
diff --git a/init/Kconfig b/init/Kconfig
index 9edf103b3ec3..f000edb3bb7a 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -348,7 +348,7 @@ config SYSCTL_SYSCALL
           If unsure say Y here.
 
 config KALLSYMS
-         bool "Load all symbols for debugging/kksymoops" if EMBEDDED
+         bool "Load all symbols for debugging/ksymoops" if EMBEDDED
          default y
          help
            Say Y here to let the kernel print out symbolic crash information and
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 0701ddda1df8..818e4589f718 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -437,7 +437,7 @@ config FAIL_PAGE_ALLOC
           Provide fault-injection capability for alloc_pages().
 
 config FAIL_MAKE_REQUEST
-        bool "Fault-injection capabilitiy for disk IO"
+        bool "Fault-injection capability for disk IO"
         depends on FAULT_INJECTION
         help
           Provide fault-injection capability for disk IO.
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 74046efdf875..8ce00d3703da 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -565,7 +565,7 @@ static void ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
                 } else {
                         struct sk_buff *free_it = next;
 
-                        /* Old fragmnet is completely overridden with
+                        /* Old fragment is completely overridden with
                          * new one drop it.
                          */
                         next = next->next;
diff --git a/sound/Kconfig b/sound/Kconfig
index 95949b6806ac..9d77300746c6 100644
--- a/sound/Kconfig
+++ b/sound/Kconfig
@@ -93,4 +93,12 @@ endmenu
 
 endif
 
+config AC97_BUS
+        tristate
+        help
+          This is used to avoid config and link hard dependencies between the
+          sound subsystem and other function drivers completely unrelated to
+          sound although they're sharing the AC97 bus. Concerned drivers
+          should "select" this.
+
 endmenu
diff --git a/sound/Makefile b/sound/Makefile
index 5f6bef57e825..9aee54c4882d 100644
--- a/sound/Makefile
+++ b/sound/Makefile
@@ -8,6 +8,9 @@ obj-$(CONFIG_DMASOUND) += oss/
 obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ synth/ usb/ sparc/ parisc/ pcmcia/ mips/
 obj-$(CONFIG_SND_AOA) += aoa/
 
+# This one must be compilable even if sound is configured out
+obj-$(CONFIG_AC97_BUS) += ac97_bus.o
+
 ifeq ($(CONFIG_SND),y)
   obj-y += last.o
 endif
diff --git a/sound/pci/ac97/ac97_bus.c b/sound/ac97_bus.c
index 66de2c2f1554..66de2c2f1554 100644
--- a/sound/pci/ac97/ac97_bus.c
+++ b/sound/ac97_bus.c
diff --git a/sound/aoa/fabrics/Kconfig b/sound/aoa/fabrics/Kconfig
index c3bc7705c86a..50d7021ff677 100644
--- a/sound/aoa/fabrics/Kconfig
+++ b/sound/aoa/fabrics/Kconfig
@@ -1,6 +1,6 @@
 config SND_AOA_FABRIC_LAYOUT
         tristate "layout-id fabric"
-        depends SND_AOA
+        depends on SND_AOA
         select SND_AOA_SOUNDBUS
         select SND_AOA_SOUNDBUS_I2S
         ---help---
diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig
index 7971285dfd5b..40ebd2f44056 100644
--- a/sound/drivers/Kconfig
+++ b/sound/drivers/Kconfig
@@ -26,11 +26,7 @@ config SND_VX_LIB
 config SND_AC97_CODEC
         tristate
         select SND_PCM
-        select SND_AC97_BUS
-
-config SND_AC97_BUS
-        tristate
-
+        select AC97_BUS
 
 config SND_DUMMY
         tristate "Dummy (/dev/null) soundcard"
diff --git a/sound/pci/ac97/Makefile b/sound/pci/ac97/Makefile
index 77b3482cb133..3c3222122d8b 100644
--- a/sound/pci/ac97/Makefile
+++ b/sound/pci/ac97/Makefile
@@ -10,11 +10,9 @@ snd-ac97-codec-objs += ac97_proc.o
 endif
 
 snd-ak4531-codec-objs := ak4531_codec.o
-snd-ac97-bus-objs := ac97_bus.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_AC97_CODEC) += snd-ac97-codec.o
 obj-$(CONFIG_SND_ENS1370) += snd-ak4531-codec.o
-obj-$(CONFIG_SND_AC97_BUS) += snd-ac97-bus.o
 
 obj-m := $(sort $(obj-m))