Merge branch 'sh/driver-core' into sh/clkfwk

author: Paul Mundt <lethal@linux-sh.org> 2010-03-10 02:41:57 -0500
committer: Paul Mundt <lethal@linux-sh.org> 2010-03-10 02:41:57 -0500
commit: d28c145debb1bd53cde63ac8bccc192e3e00067e (patch)
tree: 87fb1d66cab7689aa662ebd0337b39ff1bf6f433 /drivers
parent: 2e733b3f84fa9c2ae60513c5f7b56d599ed2ae02 (diff)
parent: ec0ffe2ee0e0fb9da4409d86bfd72636450f32df (diff)
175 files changed, 2449 insertions, 804 deletions
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index a206a12da78a..743f2445e2a1 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -101,6 +101,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
        struct acpi_table_header *header = NULL;
        struct acpi_table_attr *attr = NULL;
+        sysfs_attr_init(&table_attr->attr.attr);
        if (table_header->signature[0] != '\0')
                memcpy(table_attr->name, table_header->signature,
                        ACPI_NAME_SIZE);
@@ -475,6 +476,7 @@ void acpi_irq_stats_init(void)
                        goto fail;
                strncpy(name, buffer, strlen(buffer) + 1);
+                sysfs_attr_init(&counter_attrs[i].attr);
                counter_attrs[i].attr.name = name;
                counter_attrs[i].attr.mode = 0644;
                counter_attrs[i].show = counter_show;
diff --git a/drivers/auxdisplay/cfag12864bfb.c b/drivers/auxdisplay/cfag12864bfb.c
index fe3a865be4e5..b0ca5a47f47d 100644
--- a/drivers/auxdisplay/cfag12864bfb.c
+++ b/drivers/auxdisplay/cfag12864bfb.c
@@ -81,7 +81,7 @@ static struct fb_ops cfag12864bfb_ops = {
        .fb_mmap = cfag12864bfb_mmap,
 };
-static int __init cfag12864bfb_probe(struct platform_device *device)
+static int __devinit cfag12864bfb_probe(struct platform_device *device)
 {
        int ret = -EINVAL;
        struct fb_info *info = framebuffer_alloc(0, &device->dev);
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index ee377270beb9..fd52c48ee762 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -3,35 +3,50 @@ menu "Generic Driver Options"
 config UEVENT_HELPER_PATH
        string "path to uevent helper"
        depends on HOTPLUG
-        default "/sbin/hotplug"
+        default ""
        help
          Path to uevent helper program forked by the kernel for
          every uevent.
+          Before the switch to the netlink-based uevent source, this was
+          used to hook hotplug scripts into kernel device events. It
+          usually pointed to a shell script at /sbin/hotplug.
+          This should not be used today, because usual systems create
+          many events at bootup or device discovery in a very short time
+          frame. One forked process per event can create so many processes
+          that it creates a high system load, or on smaller systems
+          it is known to create out-of-memory situations during bootup.
 config DEVTMPFS
-        bool "Create a kernel maintained /dev tmpfs (EXPERIMENTAL)"
+        bool "Maintain a devtmpfs filesystem to mount at /dev"
        depends on HOTPLUG && SHMEM && TMPFS
        help
-          This creates a tmpfs filesystem, and mounts it at bootup
+          This creates a tmpfs filesystem instance early at bootup.
-          and mounts it at /dev. The kernel driver core creates device
+          In this filesystem, the kernel driver core maintains device
-          nodes for all registered devices in that filesystem. All device
+          nodes with their default names and permissions for all
-          nodes are owned by root and have the default mode of 0600.
+          registered devices with an assigned major/minor number.
-          Userspace can add and delete the nodes as needed. This is
+          Userspace can modify the filesystem content as needed, add
-          intended to simplify bootup, and make it possible to delay
+          symlinks, and apply needed permissions.
-          the initial coldplug at bootup done by udev in userspace.
+          It provides a fully functional /dev directory, where usually
-          It should also provide a simpler way for rescue systems
+          udev runs on top, managing permissions and adding meaningful
-          to bring up a kernel with dynamic major/minor numbers.
+          symlinks.
-          Meaningful symlinks, permissions and device ownership must
+          In very limited environments, it may provide a sufficient
-          still be handled by userspace.
+          functional /dev without any further help. It also allows simple
-          If unsure, say N here.
+          rescue systems, and reliably handles dynamic major/minor numbers.
 config DEVTMPFS_MOUNT
-        bool "Automount devtmpfs at /dev"
+        bool "Automount devtmpfs at /dev, after the kernel mounted the rootfs"
        depends on DEVTMPFS
        help
-          This will mount devtmpfs at /dev if the kernel mounts the root
+          This will instruct the kernel to automatically mount the
-          filesystem. It will not affect initramfs based mounting.
+          devtmpfs filesystem at /dev, directly after the kernel has
-          If unsure, say N here.
+          mounted the root filesystem. The behavior can be overridden
+          with the commandline parameter: devtmpfs.mount=0|1.
+          This option does not affect initramfs based booting, here
+          the devtmpfs filesystem always needs to be mounted manually
+          after the roots is mounted.
+          With this option enabled, it allows to bring up a system in
+          rescue mode with init=/bin/sh, even when the /dev directory
+          on the rootfs is completely empty.
 config STANDALONE
        bool "Select only drivers that don't need compile-time external firmware" if EXPERIMENTAL
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index c0c5a43d9fb3..71f6af5c8b0b 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -70,7 +70,7 @@ static ssize_t drv_attr_store(struct kobject *kobj, struct attribute *attr,
        return ret;
 }
-static struct sysfs_ops driver_sysfs_ops = {
+static const struct sysfs_ops driver_sysfs_ops = {
        .show   = drv_attr_show,
        .store  = drv_attr_store,
 };
@@ -115,7 +115,7 @@ static ssize_t bus_attr_store(struct kobject *kobj, struct attribute *attr,
        return ret;
 }
-static struct sysfs_ops bus_sysfs_ops = {
+static const struct sysfs_ops bus_sysfs_ops = {
        .show   = bus_attr_show,
        .store  = bus_attr_store,
 };
@@ -154,7 +154,7 @@ static int bus_uevent_filter(struct kset *kset, struct kobject *kobj)
        return 0;
 }
-static struct kset_uevent_ops bus_uevent_ops = {
+static const struct kset_uevent_ops bus_uevent_ops = {
        .filter = bus_uevent_filter,
 };
@@ -173,10 +173,10 @@ static ssize_t driver_unbind(struct device_driver *drv,
        dev = bus_find_device_by_name(bus, NULL, buf);
        if (dev && dev->driver == drv) {
                if (dev->parent)        /* Needed for USB */
-                        down(&dev->parent->sem);
+                        device_lock(dev->parent);
                device_release_driver(dev);
                if (dev->parent)
-                        up(&dev->parent->sem);
+                        device_unlock(dev->parent);
                err = count;
        }
        put_device(dev);
@@ -200,12 +200,12 @@ static ssize_t driver_bind(struct device_driver *drv,
        dev = bus_find_device_by_name(bus, NULL, buf);
        if (dev && dev->driver == NULL && driver_match_device(drv, dev)) {
                if (dev->parent)        /* Needed for USB */
-                        down(&dev->parent->sem);
+                        device_lock(dev->parent);
-                down(&dev->sem);
+                device_lock(dev);
                err = driver_probe_device(drv, dev);
-                up(&dev->sem);
+                device_unlock(dev);
                if (dev->parent)
-                        up(&dev->parent->sem);
+                        device_unlock(dev->parent);
                if (err > 0) {
                        /* success */
@@ -744,10 +744,10 @@ static int __must_check bus_rescan_devices_helper(struct device *dev,
        if (!dev->driver) {
                if (dev->parent)        /* Needed for USB */
-                        down(&dev->parent->sem);
+                        device_lock(dev->parent);
                ret = device_attach(dev);
                if (dev->parent)
-                        up(&dev->parent->sem);
+                        device_unlock(dev->parent);
        }
        return ret < 0 ? ret : 0;
 }
@@ -779,10 +779,10 @@ int device_reprobe(struct device *dev)
 {
        if (dev->driver) {
                if (dev->parent)        /* Needed for USB */
-                        down(&dev->parent->sem);
+                        device_lock(dev->parent);
                device_release_driver(dev);
                if (dev->parent)
-                        up(&dev->parent->sem);
+                        device_unlock(dev->parent);
        }
        return bus_rescan_devices_helper(dev, NULL);
 }
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 6e2c3b064f53..0147f476b8a9 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -31,7 +31,7 @@ static ssize_t class_attr_show(struct kobject *kobj, struct attribute *attr,
        ssize_t ret = -EIO;
        if (class_attr->show)
-                ret = class_attr->show(cp->class, buf);
+                ret = class_attr->show(cp->class, class_attr, buf);
        return ret;
 }
@@ -43,7 +43,7 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr,
        ssize_t ret = -EIO;
        if (class_attr->store)
-                ret = class_attr->store(cp->class, buf, count);
+                ret = class_attr->store(cp->class, class_attr, buf, count);
        return ret;
 }
@@ -63,7 +63,7 @@ static void class_release(struct kobject *kobj)
        kfree(cp);
 }
-static struct sysfs_ops class_sysfs_ops = {
+static const struct sysfs_ops class_sysfs_ops = {
        .show   = class_attr_show,
        .store  = class_attr_store,
 };
@@ -490,6 +490,16 @@ void class_interface_unregister(struct class_interface *class_intf)
        class_put(parent);
 }
+ssize_t show_class_attr_string(struct class *class, struct class_attribute *attr,
+                                char *buf)
+{
+        struct class_attribute_string *cs;
+        cs = container_of(attr, struct class_attribute_string, attr);
+        return snprintf(buf, PAGE_SIZE, "%s\n", cs->str);
+}
+EXPORT_SYMBOL_GPL(show_class_attr_string);
 struct class_compat {
        struct kobject *kobj;
 };
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 282025770429..ef55df34ddd0 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -100,7 +100,7 @@ static ssize_t dev_attr_store(struct kobject *kobj, struct attribute *attr,
        return ret;
 }
-static struct sysfs_ops dev_sysfs_ops = {
+static const struct sysfs_ops dev_sysfs_ops = {
        .show   = dev_attr_show,
        .store  = dev_attr_store,
 };
@@ -252,7 +252,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
        return retval;
 }
-static struct kset_uevent_ops device_uevent_ops = {
+static const struct kset_uevent_ops device_uevent_ops = {
        .filter =       dev_uevent_filter,
        .name =         dev_uevent_name,
        .uevent =       dev_uevent,
@@ -306,15 +306,10 @@ static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
 {
        enum kobject_action action;
-        if (kobject_action_type(buf, count, &action) == 0) {
+        if (kobject_action_type(buf, count, &action) == 0)
                kobject_uevent(&dev->kobj, action);
-                goto out;
+        else
-        }
+                dev_err(dev, "uevent: unknown action-string\n");
-        dev_err(dev, "uevent: unsupported action-string; this will "
-                     "be ignored in a future kernel version\n");
-        kobject_uevent(&dev->kobj, KOBJ_ADD);
-out:
        return count;
 }
@@ -607,6 +602,7 @@ static struct kobject *get_device_parent(struct device *dev,
        int retval;
        if (dev->class) {
+                static DEFINE_MUTEX(gdp_mutex);
                struct kobject *kobj = NULL;
                struct kobject *parent_kobj;
                struct kobject *k;
@@ -623,6 +619,8 @@ static struct kobject *get_device_parent(struct device *dev,
                else
                        parent_kobj = &parent->kobj;
+                mutex_lock(&gdp_mutex);
                /* find our class-directory at the parent and reference it */
                spin_lock(&dev->class->p->class_dirs.list_lock);
                list_for_each_entry(k, &dev->class->p->class_dirs.list, entry)
@@ -631,20 +629,26 @@ static struct kobject *get_device_parent(struct device *dev,
                                break;
                        }
                spin_unlock(&dev->class->p->class_dirs.list_lock);
-                if (kobj)
+                if (kobj) {
+                        mutex_unlock(&gdp_mutex);
                        return kobj;
+                }
                /* or create a new class-directory at the parent device */
                k = kobject_create();
-                if (!k)
+                if (!k) {
+                        mutex_unlock(&gdp_mutex);
                        return NULL;
+                }
                k->kset = &dev->class->p->class_dirs;
                retval = kobject_add(k, parent_kobj, "%s", dev->class->name);
                if (retval < 0) {
+                        mutex_unlock(&gdp_mutex);
                        kobject_put(k);
                        return NULL;
                }
                /* do not emit an uevent for this simple "glue" directory */
+                mutex_unlock(&gdp_mutex);
                return k;
        }
@@ -1574,22 +1578,16 @@ int device_rename(struct device *dev, char *new_name)
        if (old_class_name) {
                new_class_name = make_class_name(dev->class->name, &dev->kobj);
                if (new_class_name) {
-                        error = sysfs_create_link_nowarn(&dev->parent->kobj,
+                        error = sysfs_rename_link(&dev->parent->kobj,
-                                                         &dev->kobj,
+                                                  &dev->kobj,
-                                                         new_class_name);
+                                                  old_class_name,
-                        if (error)
+                                                  new_class_name);
-                                goto out;
-                        sysfs_remove_link(&dev->parent->kobj, old_class_name);
                }
        }
 #else
        if (dev->class) {
-                error = sysfs_create_link_nowarn(&dev->class->p->class_subsys.kobj,
+                error = sysfs_rename_link(&dev->class->p->class_subsys.kobj,
-                                                 &dev->kobj, dev_name(dev));
+                                          &dev->kobj, old_device_name, new_name);
-                if (error)
-                        goto out;
-                sysfs_remove_link(&dev->class->p->class_subsys.kobj,
-                                  old_device_name);
        }
 #endif
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 958bd1540c30..7036e8e96ab8 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -13,8 +13,11 @@
 #include "base.h"
+static struct sysdev_class_attribute *cpu_sysdev_class_attrs[];
 struct sysdev_class cpu_sysdev_class = {
        .name = "cpu",
+        .attrs = cpu_sysdev_class_attrs,
 };
 EXPORT_SYMBOL(cpu_sysdev_class);
@@ -76,34 +79,24 @@ void unregister_cpu(struct cpu *cpu)
 }
 #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
-static ssize_t cpu_probe_store(struct class *class, const char *buf,
+static ssize_t cpu_probe_store(struct sys_device *dev,
+                                struct sysdev_attribute *attr,
+                                const char *buf,
                               size_t count)
 {
        return arch_cpu_probe(buf, count);
 }
-static ssize_t cpu_release_store(struct class *class, const char *buf,
+static ssize_t cpu_release_store(struct sys_device *dev,
+                                struct sysdev_attribute *attr,
+                                const char *buf,
                                 size_t count)
 {
        return arch_cpu_release(buf, count);
 }
-static CLASS_ATTR(probe, S_IWUSR, NULL, cpu_probe_store);
+static SYSDEV_ATTR(probe, S_IWUSR, NULL, cpu_probe_store);
-static CLASS_ATTR(release, S_IWUSR, NULL, cpu_release_store);
+static SYSDEV_ATTR(release, S_IWUSR, NULL, cpu_release_store);
-int __init cpu_probe_release_init(void)
-{
-        int rc;
-        rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
-                               &class_attr_probe.attr);
-        if (!rc)
-                rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
-                                       &class_attr_release.attr);
-        return rc;
-}
-device_initcall(cpu_probe_release_init);
 #endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */
 #else /* ... !CONFIG_HOTPLUG_CPU */
@@ -141,31 +134,39 @@ static SYSDEV_ATTR(crash_notes, 0400, show_crash_notes, NULL);
 /*
 * Print cpu online, possible, present, and system maps
 */
-static ssize_t print_cpus_map(char *buf, const struct cpumask *map)
+struct cpu_attr {
+        struct sysdev_class_attribute attr;
+        const struct cpumask *const * const map;
+};
+static ssize_t show_cpus_attr(struct sysdev_class *class,
+                              struct sysdev_class_attribute *attr,
+                              char *buf)
 {
-        int n = cpulist_scnprintf(buf, PAGE_SIZE-2, map);
+        struct cpu_attr *ca = container_of(attr, struct cpu_attr, attr);
+        int n = cpulist_scnprintf(buf, PAGE_SIZE-2, *(ca->map));
        buf[n++] = '\n';
        buf[n] = '\0';
        return n;
 }
-#define print_cpus_func(type) \
+#define _CPU_ATTR(name, map)                                            \
-static ssize_t print_cpus_##type(struct sysdev_class *class, char *buf) \
+        { _SYSDEV_CLASS_ATTR(name, 0444, show_cpus_attr, NULL), map }
-{                                                                       \
-        return print_cpus_map(buf, cpu_##type##_mask);                  \
-}                                                                       \
-static struct sysdev_class_attribute attr_##type##_map =                \
-        _SYSDEV_CLASS_ATTR(type, 0444, print_cpus_##type, NULL)
-print_cpus_func(online);
+/* Keep in sync with cpu_sysdev_class_attrs */
-print_cpus_func(possible);
+static struct cpu_attr cpu_attrs[] = {
-print_cpus_func(present);
+        _CPU_ATTR(online, &cpu_online_mask),
+        _CPU_ATTR(possible, &cpu_possible_mask),
+        _CPU_ATTR(present, &cpu_present_mask),
+};
 /*
 * Print values for NR_CPUS and offlined cpus
 */
-static ssize_t print_cpus_kernel_max(struct sysdev_class *class, char *buf)
+static ssize_t print_cpus_kernel_max(struct sysdev_class *class,
+                                     struct sysdev_class_attribute *attr, char *buf)
 {
        int n = snprintf(buf, PAGE_SIZE-2, "%d\n", NR_CPUS - 1);
        return n;
@@ -175,7 +176,8 @@ static SYSDEV_CLASS_ATTR(kernel_max, 0444, print_cpus_kernel_max, NULL);
 /* arch-optional setting to enable display of offline cpus >= nr_cpu_ids */
 unsigned int total_cpus;
-static ssize_t print_cpus_offline(struct sysdev_class *class, char *buf)
+static ssize_t print_cpus_offline(struct sysdev_class *class,
+                                  struct sysdev_class_attribute *attr, char *buf)
 {
        int n = 0, len = PAGE_SIZE-2;
        cpumask_var_t offline;
@@ -204,29 +206,6 @@ static ssize_t print_cpus_offline(struct sysdev_class *class, char *buf)
 }
 static SYSDEV_CLASS_ATTR(offline, 0444, print_cpus_offline, NULL);
-static struct sysdev_class_attribute *cpu_state_attr[] = {
-        &attr_online_map,
-        &attr_possible_map,
-        &attr_present_map,
-        &attr_kernel_max,
-        &attr_offline,
-};
-static int cpu_states_init(void)
-{
-        int i;
-        int err = 0;
-        for (i = 0;  i < ARRAY_SIZE(cpu_state_attr); i++) {
-                int ret;
-                ret = sysdev_class_create_file(&cpu_sysdev_class,
-                                                cpu_state_attr[i]);
-                if (!err)
-                        err = ret;
-        }
-        return err;
-}
 /*
 * register_cpu - Setup a sysfs device for a CPU.
 * @cpu - cpu->hotpluggable field set to 1 will generate a control file in
@@ -272,9 +251,6 @@ int __init cpu_dev_init(void)
        int err;
        err = sysdev_class_register(&cpu_sysdev_class);
-        if (!err)
-                err = cpu_states_init();
 #if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT)
        if (!err)
                err = sched_create_sysfs_power_savings_entries(&cpu_sysdev_class);
@@ -282,3 +258,16 @@ int __init cpu_dev_init(void)
        return err;
 }
+static struct sysdev_class_attribute *cpu_sysdev_class_attrs[] = {
+#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
+        &attr_probe,
+        &attr_release,
+#endif
+        &cpu_attrs[0].attr,
+        &cpu_attrs[1].attr,
+        &cpu_attrs[2].attr,
+        &attr_kernel_max,
+        &attr_offline,
+        NULL
+};
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index ee95c76bfd3d..c89291f8a16b 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -85,7 +85,7 @@ static void driver_sysfs_remove(struct device *dev)
 * for before calling this. (It is ok to call with no other effort
 * from a driver's probe() method.)
 *
- * This function must be called with @dev->sem held.
+ * This function must be called with the device lock held.
 */
 int device_bind_driver(struct device *dev)
 {
@@ -190,8 +190,8 @@ EXPORT_SYMBOL_GPL(wait_for_device_probe);
 * This function returns -ENODEV if the device is not registered,
 * 1 if the device is bound successfully and 0 otherwise.
 *
- * This function must be called with @dev->sem held.  When called for a
+ * This function must be called with @dev lock held.  When called for a
- * USB interface, @dev->parent->sem must be held as well.
+ * USB interface, @dev->parent lock must be held as well.
 */
 int driver_probe_device(struct device_driver *drv, struct device *dev)
 {
@@ -233,13 +233,13 @@ static int __device_attach(struct device_driver *drv, void *data)
 * 0 if no matching driver was found;
 * -ENODEV if the device is not registered.
 *
- * When called for a USB interface, @dev->parent->sem must be held.
+ * When called for a USB interface, @dev->parent lock must be held.
 */
 int device_attach(struct device *dev)
 {
        int ret = 0;
-        down(&dev->sem);
+        device_lock(dev);
        if (dev->driver) {
                ret = device_bind_driver(dev);
                if (ret == 0)
@@ -253,7 +253,7 @@ int device_attach(struct device *dev)
                ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach);
                pm_runtime_put_sync(dev);
        }
-        up(&dev->sem);
+        device_unlock(dev);
        return ret;
 }
 EXPORT_SYMBOL_GPL(device_attach);
@@ -276,13 +276,13 @@ static int __driver_attach(struct device *dev, void *data)
                return 0;
        if (dev->parent)        /* Needed for USB */
-                down(&dev->parent->sem);
+                device_lock(dev->parent);
-        down(&dev->sem);
+        device_lock(dev);
        if (!dev->driver)
                driver_probe_device(drv, dev);
-        up(&dev->sem);
+        device_unlock(dev);
        if (dev->parent)
-                up(&dev->parent->sem);
+                device_unlock(dev->parent);
        return 0;
 }
@@ -303,8 +303,8 @@ int driver_attach(struct device_driver *drv)
 EXPORT_SYMBOL_GPL(driver_attach);
 /*
- * __device_release_driver() must be called with @dev->sem held.
+ * __device_release_driver() must be called with @dev lock held.
- * When called for a USB interface, @dev->parent->sem must be held as well.
+ * When called for a USB interface, @dev->parent lock must be held as well.
 */
 static void __device_release_driver(struct device *dev)
 {
@@ -343,7 +343,7 @@ static void __device_release_driver(struct device *dev)
 * @dev: device.
 *
 * Manually detach device from driver.
- * When called for a USB interface, @dev->parent->sem must be held.
+ * When called for a USB interface, @dev->parent lock must be held.
 */
 void device_release_driver(struct device *dev)
 {
@@ -352,9 +352,9 @@ void device_release_driver(struct device *dev)
         * within their ->remove callback for the same device, they
         * will deadlock right here.
         */
-        down(&dev->sem);
+        device_lock(dev);
        __device_release_driver(dev);
-        up(&dev->sem);
+        device_unlock(dev);
 }
 EXPORT_SYMBOL_GPL(device_release_driver);
@@ -381,13 +381,13 @@ void driver_detach(struct device_driver *drv)
                spin_unlock(&drv->p->klist_devices.k_lock);
                if (dev->parent)        /* Needed for USB */
-                        down(&dev->parent->sem);
+                        device_lock(dev->parent);
-                down(&dev->sem);
+                device_lock(dev);
                if (dev->driver == drv)
                        __device_release_driver(dev);
-                up(&dev->sem);
+                device_unlock(dev);
                if (dev->parent)
-                        up(&dev->parent->sem);
+                        device_unlock(dev->parent);
                put_device(dev);
        }
 }
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 42ae452b36b0..dac478c6e460 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -301,6 +301,19 @@ int devtmpfs_delete_node(struct device *dev)
                if (dentry->d_inode) {
                        err = vfs_getattr(nd.path.mnt, dentry, &stat);
                        if (!err && dev_mynode(dev, dentry->d_inode, &stat)) {
+                                struct iattr newattrs;
+                                /*
+                                 * before unlinking this node, reset permissions
+                                 * of possible references like hardlinks
+                                 */
+                                newattrs.ia_uid = 0;
+                                newattrs.ia_gid = 0;
+                                newattrs.ia_mode = stat.mode & ~0777;
+                                newattrs.ia_valid =
+                                        ATTR_UID|ATTR_GID|ATTR_MODE;
+                                mutex_lock(&dentry->d_inode->i_mutex);
+                                notify_change(dentry, &newattrs);
+                                mutex_unlock(&dentry->d_inode->i_mutex);
                                err = vfs_unlink(nd.path.dentry->d_inode,
                                                 dentry);
                                if (!err || err == -ENOENT)
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index a95024166b66..d0dc26ad5387 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -19,7 +19,6 @@
 #include <linux/kthread.h>
 #include <linux/highmem.h>
 #include <linux/firmware.h>
-#include "base.h"
 #define to_dev(obj) container_of(obj, struct device, kobj)
@@ -69,7 +68,9 @@ fw_load_abort(struct firmware_priv *fw_priv)
 }
 static ssize_t
-firmware_timeout_show(struct class *class, char *buf)
+firmware_timeout_show(struct class *class,
+                      struct class_attribute *attr,
+                      char *buf)
 {
        return sprintf(buf, "%d\n", loading_timeout);
 }
@@ -87,7 +88,9 @@ firmware_timeout_show(struct class *class, char *buf)
 *      Note: zero means 'wait forever'.
 **/
 static ssize_t
-firmware_timeout_store(struct class *class, const char *buf, size_t count)
+firmware_timeout_store(struct class *class,
+                        struct class_attribute *attr,
+                        const char *buf, size_t count)
 {
        loading_timeout = simple_strtol(buf, NULL, 10);
        if (loading_timeout < 0)
@@ -610,7 +613,7 @@ request_firmware_work_func(void *arg)
 }
 /**
- * request_firmware_nowait: asynchronous version of request_firmware
+ * request_firmware_nowait - asynchronous version of request_firmware
 * @module: module requesting the firmware
 * @uevent: sends uevent to copy the firmware image if this flag
 *      is non-zero else the firmware copy must be done manually.
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index bd025059711f..2f8691511190 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -44,7 +44,7 @@ static int memory_uevent(struct kset *kset, struct kobject *obj, struct kobj_uev
        return retval;
 }
-static struct kset_uevent_ops memory_uevent_ops = {
+static const struct kset_uevent_ops memory_uevent_ops = {
        .name           = memory_uevent_name,
        .uevent         = memory_uevent,
 };
@@ -309,17 +309,18 @@ static SYSDEV_ATTR(removable, 0444, show_mem_removable, NULL);
 * Block size attribute stuff
 */
 static ssize_t
-print_block_size(struct class *class, char *buf)
+print_block_size(struct sysdev_class *class, struct sysdev_class_attribute *attr,
+                 char *buf)
 {
        return sprintf(buf, "%#lx\n", (unsigned long)PAGES_PER_SECTION * PAGE_SIZE);
 }
-static CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL);
+static SYSDEV_CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL);
 static int block_size_init(void)
 {
        return sysfs_create_file(&memory_sysdev_class.kset.kobj,
-                                &class_attr_block_size_bytes.attr);
+                                &attr_block_size_bytes.attr);
 }
 /*
@@ -330,7 +331,8 @@ static int block_size_init(void)
 */
 #ifdef CONFIG_ARCH_MEMORY_PROBE
 static ssize_t
-memory_probe_store(struct class *class, const char *buf, size_t count)
+memory_probe_store(struct class *class, struct class_attribute *attr,
+                   const char *buf, size_t count)
 {
        u64 phys_addr;
        int nid;
@@ -367,7 +369,9 @@ static inline int memory_probe_init(void)
 /* Soft offline a page */
 static ssize_t
-store_soft_offline_page(struct class *class, const char *buf, size_t count)
+store_soft_offline_page(struct class *class,
+                        struct class_attribute *attr,
+                        const char *buf, size_t count)
 {
        int ret;
        u64 pfn;
@@ -384,7 +388,9 @@ store_soft_offline_page(struct class *class, const char *buf, size_t count)
 /* Forcibly offline a page, including killing processes. */
 static ssize_t
-store_hard_offline_page(struct class *class, const char *buf, size_t count)
+store_hard_offline_page(struct class *class,
+                        struct class_attribute *attr,
+                        const char *buf, size_t count)
 {
        int ret;
        u64 pfn;
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 70122791683d..ad43185ec15a 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -16,8 +16,11 @@
 #include <linux/device.h>
 #include <linux/swap.h>
+static struct sysdev_class_attribute *node_state_attrs[];
 static struct sysdev_class node_class = {
        .name = "node",
+        .attrs = node_state_attrs,
 };
@@ -544,76 +547,52 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
        return n;
 }
-static ssize_t print_nodes_possible(struct sysdev_class *class, char *buf)
+struct node_attr {
-{
+        struct sysdev_class_attribute attr;
-        return print_nodes_state(N_POSSIBLE, buf);
+        enum node_states state;
-}
+};
-static ssize_t print_nodes_online(struct sysdev_class *class, char *buf)
-{
-        return print_nodes_state(N_ONLINE, buf);
-}
-static ssize_t print_nodes_has_normal_memory(struct sysdev_class *class,
-                                                char *buf)
-{
-        return print_nodes_state(N_NORMAL_MEMORY, buf);
-}
-static ssize_t print_nodes_has_cpu(struct sysdev_class *class, char *buf)
+static ssize_t show_node_state(struct sysdev_class *class,
+                               struct sysdev_class_attribute *attr, char *buf)
 {
-        return print_nodes_state(N_CPU, buf);
+        struct node_attr *na = container_of(attr, struct node_attr, attr);
+        return print_nodes_state(na->state, buf);
 }
-static SYSDEV_CLASS_ATTR(possible, 0444, print_nodes_possible, NULL);
+#define _NODE_ATTR(name, state) \
-static SYSDEV_CLASS_ATTR(online, 0444, print_nodes_online, NULL);
+        { _SYSDEV_CLASS_ATTR(name, 0444, show_node_state, NULL), state }
-static SYSDEV_CLASS_ATTR(has_normal_memory, 0444, print_nodes_has_normal_memory,
-                                                                        NULL);
-static SYSDEV_CLASS_ATTR(has_cpu, 0444, print_nodes_has_cpu, NULL);
+static struct node_attr node_state_attr[] = {
+        _NODE_ATTR(possible, N_POSSIBLE),
+        _NODE_ATTR(online, N_ONLINE),
+        _NODE_ATTR(has_normal_memory, N_NORMAL_MEMORY),
+        _NODE_ATTR(has_cpu, N_CPU),
 #ifdef CONFIG_HIGHMEM
-static ssize_t print_nodes_has_high_memory(struct sysdev_class *class,
+        _NODE_ATTR(has_high_memory, N_HIGH_MEMORY),
-                                                 char *buf)
-{
-        return print_nodes_state(N_HIGH_MEMORY, buf);
-}
-static SYSDEV_CLASS_ATTR(has_high_memory, 0444, print_nodes_has_high_memory,
-                                                                         NULL);
 #endif
+};
-struct sysdev_class_attribute *node_state_attr[] = {
+static struct sysdev_class_attribute *node_state_attrs[] = {
-        &attr_possible,
+        &node_state_attr[0].attr,
-        &attr_online,
+        &node_state_attr[1].attr,
-        &attr_has_normal_memory,
+        &node_state_attr[2].attr,
+        &node_state_attr[3].attr,
 #ifdef CONFIG_HIGHMEM
-        &attr_has_high_memory,
+        &node_state_attr[4].attr,
 #endif
-        &attr_has_cpu,
+        NULL
 };
-static int node_states_init(void)
-{
-        int i;
-        int err = 0;
-        for (i = 0;  i < NR_NODE_STATES; i++) {
-                int ret;
-                ret = sysdev_class_create_file(&node_class, node_state_attr[i]);
-                if (!err)
-                        err = ret;
-        }
-        return err;
-}
 #define NODE_CALLBACK_PRI       2       /* lower than SLAB */
 static int __init register_node_type(void)
 {
        int ret;
+        BUILD_BUG_ON(ARRAY_SIZE(node_state_attr) != NR_NODE_STATES);
+        BUILD_BUG_ON(ARRAY_SIZE(node_state_attrs)-1 != NR_NODE_STATES);
        ret = sysdev_class_register(&node_class);
        if (!ret) {
-                ret = node_states_init();
                hotplug_memory_notifier(node_memory_callback,
                                        NODE_CALLBACK_PRI);
        }
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 58efaf2f1259..d2d4926c5c4c 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -128,7 +128,7 @@ struct platform_object {
 };
 /**
- * platform_device_put
+ * platform_device_put - destroy a platform device
 * @pdev: platform device to free
 *
 * Free all memory associated with a platform device.  This function must
@@ -152,7 +152,7 @@ static void platform_device_release(struct device *dev)
 }
 /**
- * platform_device_alloc
+ * platform_device_alloc - create a platform device
 * @name: base name of the device we're adding
 * @id: instance id
 *
@@ -177,7 +177,7 @@ struct platform_device *platform_device_alloc(const char *name, int id)
 EXPORT_SYMBOL_GPL(platform_device_alloc);
 /**
- * platform_device_add_resources
+ * platform_device_add_resources - add resources to a platform device
 * @pdev: platform device allocated by platform_device_alloc to add resources to
 * @res: set of resources that needs to be allocated for the device
 * @num: number of resources
@@ -202,7 +202,7 @@ int platform_device_add_resources(struct platform_device *pdev,
 EXPORT_SYMBOL_GPL(platform_device_add_resources);
 /**
- * platform_device_add_data
+ * platform_device_add_data - add platform-specific data to a platform device
 * @pdev: platform device allocated by platform_device_alloc to add resources to
 * @data: platform specific data for this platform device
 * @size: size of platform specific data
@@ -344,7 +344,7 @@ void platform_device_unregister(struct platform_device *pdev)
 EXPORT_SYMBOL_GPL(platform_device_unregister);
 /**
- * platform_device_register_simple
+ * platform_device_register_simple - add a platform-level device and its resources
 * @name: base name of the device we're adding
 * @id: instance id
 * @res: set of resources that needs to be allocated for the device
@@ -396,7 +396,7 @@ error:
 EXPORT_SYMBOL_GPL(platform_device_register_simple);
 /**
- * platform_device_register_data
+ * platform_device_register_data - add a platform-level device with platform-specific data
 * @parent: parent device for the device we're adding
 * @name: base name of the device we're adding
 * @id: instance id
@@ -473,7 +473,7 @@ static void platform_drv_shutdown(struct device *_dev)
 }
 /**
- * platform_driver_register
+ * platform_driver_register - register a driver for platform-level devices
 * @drv: platform driver structure
 */
 int platform_driver_register(struct platform_driver *drv)
@@ -491,7 +491,7 @@ int platform_driver_register(struct platform_driver *drv)
 EXPORT_SYMBOL_GPL(platform_driver_register);
 /**
- * platform_driver_unregister
+ * platform_driver_unregister - unregister a driver for platform-level devices
 * @drv: platform driver structure
 */
 void platform_driver_unregister(struct platform_driver *drv)
@@ -548,6 +548,64 @@ int __init_or_module platform_driver_probe(struct platform_driver *drv,
 }
 EXPORT_SYMBOL_GPL(platform_driver_probe);
+/**
+ * platform_create_bundle - register driver and create corresponding device
+ * @driver: platform driver structure
+ * @probe: the driver probe routine, probably from an __init section
+ * @res: set of resources that needs to be allocated for the device
+ * @n_res: number of resources
+ * @data: platform specific data for this platform device
+ * @size: size of platform specific data
+ *
+ * Use this in legacy-style modules that probe hardware directly and
+ * register a single platform device and corresponding platform driver.
+ */
+struct platform_device * __init_or_module platform_create_bundle(
+                        struct platform_driver *driver,
+                        int (*probe)(struct platform_device *),
+                        struct resource *res, unsigned int n_res,
+                        const void *data, size_t size)
+{
+        struct platform_device *pdev;
+        int error;
+        pdev = platform_device_alloc(driver->driver.name, -1);
+        if (!pdev) {
+                error = -ENOMEM;
+                goto err_out;
+        }
+        if (res) {
+                error = platform_device_add_resources(pdev, res, n_res);
+                if (error)
+                        goto err_pdev_put;
+        }
+        if (data) {
+                error = platform_device_add_data(pdev, data, size);
+                if (error)
+                        goto err_pdev_put;
+        }
+        error = platform_device_add(pdev);
+        if (error)
+                goto err_pdev_put;
+        error = platform_driver_probe(driver, probe);
+        if (error)
+                goto err_pdev_del;
+        return pdev;
+err_pdev_del:
+        platform_device_del(pdev);
+err_pdev_put:
+        platform_device_put(pdev);
+err_out:
+        return ERR_PTR(error);
+}
+EXPORT_SYMBOL_GPL(platform_create_bundle);
 /* modalias support enables more hands-off userspace setup:
 * (a) environment variable lets new-style hotplug events work once system is
 *     fully running:  "modprobe $MODALIAS"
@@ -578,7 +636,7 @@ static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
 }
 static const struct platform_device_id *platform_match_id(
-                        struct platform_device_id *id,
+                        const struct platform_device_id *id,
                        struct platform_device *pdev)
 {
        while (id->name[0]) {
@@ -1181,6 +1239,25 @@ static int __init early_platform_driver_probe_id(char *class_str,
                }
                if (match) {
+                        /*
+                         * Set up a sensible init_name to enable
+                         * dev_name() and others to be used before the
+                         * rest of the driver core is initialized.
+                         */
+                        if (!match->dev.init_name) {
+                                char buf[32];
+                                if (match->id != -1)
+                                        snprintf(buf, sizeof(buf), "%s.%d",
+                                                 match->name, match->id);
+                                else
+                                        snprintf(buf, sizeof(buf), "%s",
+                                                 match->name);
+                                match->dev.init_name = kstrdup(buf, GFP_KERNEL);
+                                if (!match->dev.init_name)
+                                        return -ENOMEM;
+                        }
                        if (epdrv->pdrv->probe(match))
                                pr_warning("%s: unable to probe %s early.\n",
                                           class_str, match->name);
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 0e26a6f6fd48..d477f4dc5e51 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -35,8 +35,8 @@
 * because children are guaranteed to be discovered after parents, and
 * are inserted at the back of the list on discovery.
 *
- * Since device_pm_add() may be called with a device semaphore held,
+ * Since device_pm_add() may be called with a device lock held,
- * we must never try to acquire a device semaphore while holding
+ * we must never try to acquire a device lock while holding
 * dpm_list_mutex.
 */
@@ -508,7 +508,7 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
        TRACE_RESUME(0);
        dpm_wait(dev->parent, async);
-        down(&dev->sem);
+        device_lock(dev);
        dev->power.status = DPM_RESUMING;
@@ -543,7 +543,7 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
                }
        }
 End:
-        up(&dev->sem);
+        device_unlock(dev);
        complete_all(&dev->power.completion);
        TRACE_RESUME(error);
@@ -629,7 +629,7 @@ static void dpm_resume(pm_message_t state)
 */
 static void device_complete(struct device *dev, pm_message_t state)
 {
-        down(&dev->sem);
+        device_lock(dev);
        if (dev->class && dev->class->pm && dev->class->pm->complete) {
                pm_dev_dbg(dev, state, "completing class ");
@@ -646,7 +646,7 @@ static void device_complete(struct device *dev, pm_message_t state)
                dev->bus->pm->complete(dev);
        }
-        up(&dev->sem);
+        device_unlock(dev);
 }
 /**
@@ -809,7 +809,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
        int error = 0;
        dpm_wait_for_children(dev, async);
-        down(&dev->sem);
+        device_lock(dev);
        if (async_error)
                goto End;
@@ -849,7 +849,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
                dev->power.status = DPM_OFF;
 End:
-        up(&dev->sem);
+        device_unlock(dev);
        complete_all(&dev->power.completion);
        return error;
@@ -938,7 +938,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
 {
        int error = 0;
-        down(&dev->sem);
+        device_lock(dev);
        if (dev->bus && dev->bus->pm && dev->bus->pm->prepare) {
                pm_dev_dbg(dev, state, "preparing ");
@@ -962,7 +962,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
                suspend_report_result(dev->class->pm->prepare, error);
        }
 End:
-        up(&dev->sem);
+        device_unlock(dev);
        return error;
 }
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 0d903909af7e..8980feec5d14 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -54,7 +54,7 @@ sysdev_store(struct kobject *kobj, struct attribute *attr,
        return -EIO;
 }
-static struct sysfs_ops sysfs_ops = {
+static const struct sysfs_ops sysfs_ops = {
        .show   = sysdev_show,
        .store  = sysdev_store,
 };
@@ -89,7 +89,7 @@ static ssize_t sysdev_class_show(struct kobject *kobj, struct attribute *attr,
        struct sysdev_class_attribute *class_attr = to_sysdev_class_attr(attr);
        if (class_attr->show)
-                return class_attr->show(class, buffer);
+                return class_attr->show(class, class_attr, buffer);
        return -EIO;
 }
@@ -100,11 +100,11 @@ static ssize_t sysdev_class_store(struct kobject *kobj, struct attribute *attr,
        struct sysdev_class_attribute *class_attr = to_sysdev_class_attr(attr);
        if (class_attr->store)
-                return class_attr->store(class, buffer, count);
+                return class_attr->store(class, class_attr, buffer, count);
        return -EIO;
 }
-static struct sysfs_ops sysfs_class_ops = {
+static const struct sysfs_ops sysfs_class_ops = {
        .show   = sysdev_class_show,
        .store  = sysdev_class_store,
 };
@@ -145,13 +145,20 @@ int sysdev_class_register(struct sysdev_class *cls)
        if (retval)
                return retval;
-        return kset_register(&cls->kset);
+        retval = kset_register(&cls->kset);
+        if (!retval && cls->attrs)
+                retval = sysfs_create_files(&cls->kset.kobj,
+                                            (const struct attribute **)cls->attrs);
+        return retval;
 }
 void sysdev_class_unregister(struct sysdev_class *cls)
 {
        pr_debug("Unregistering sysdev class '%s'\n",
                 kobject_name(&cls->kset.kobj));
+        if (cls->attrs)
+                sysfs_remove_files(&cls->kset.kobj,
+                                   (const struct attribute **)cls->attrs);
        kset_unregister(&cls->kset);
 }
diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c
index a808b1530b3b..eb2091aa1c19 100644
--- a/drivers/block/osdblk.c
+++ b/drivers/block/osdblk.c
@@ -476,7 +476,9 @@ static void class_osdblk_release(struct class *cls)
        kfree(cls);
 }
-static ssize_t class_osdblk_list(struct class *c, char *data)
+static ssize_t class_osdblk_list(struct class *c,
+                                struct class_attribute *attr,
+                                char *data)
 {
        int n = 0;
        struct list_head *tmp;
@@ -500,7 +502,9 @@ static ssize_t class_osdblk_list(struct class *c, char *data)
        return n;
 }
-static ssize_t class_osdblk_add(struct class *c, const char *buf, size_t count)
+static ssize_t class_osdblk_add(struct class *c,
+                                struct class_attribute *attr,
+                                const char *buf, size_t count)
 {
        struct osdblk_device *osdev;
        ssize_t rc;
@@ -592,7 +596,9 @@ err_out_mod:
        return rc;
 }
-static ssize_t class_osdblk_remove(struct class *c, const char *buf,
+static ssize_t class_osdblk_remove(struct class *c,
+                                        struct class_attribute *attr,
+                                        const char *buf,
                                        size_t count)
 {
        struct osdblk_device *osdev = NULL;
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index b72935b8f203..39c8514442eb 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -284,7 +284,7 @@ static ssize_t kobj_pkt_store(struct kobject *kobj,
        return len;
 }
-static struct sysfs_ops kobj_pkt_ops = {
+static const struct sysfs_ops kobj_pkt_ops = {
        .show = kobj_pkt_show,
        .store = kobj_pkt_store
 };
@@ -337,7 +337,9 @@ static void class_pktcdvd_release(struct class *cls)
 {
        kfree(cls);
 }
-static ssize_t class_pktcdvd_show_map(struct class *c, char *data)
+static ssize_t class_pktcdvd_show_map(struct class *c,
+                                        struct class_attribute *attr,
+                                        char *data)
 {
        int n = 0;
        int idx;
@@ -356,7 +358,9 @@ static ssize_t class_pktcdvd_show_map(struct class *c, char *data)
        return n;
 }
-static ssize_t class_pktcdvd_store_add(struct class *c, const char *buf,
+static ssize_t class_pktcdvd_store_add(struct class *c,
+                                        struct class_attribute *attr,
+                                        const char *buf,
                                        size_t count)
 {
        unsigned int major, minor;
@@ -376,7 +380,9 @@ static ssize_t class_pktcdvd_store_add(struct class *c, const char *buf,
        return -EINVAL;
 }
-static ssize_t class_pktcdvd_store_remove(struct class *c, const char *buf,
+static ssize_t class_pktcdvd_store_remove(struct class *c,
+                                          struct class_attribute *attr,
+                                          const char *buf,
                                        size_t count)
 {
        unsigned int major, minor;
diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c
index 21681a81cc35..37b0542a4eeb 100644
--- a/drivers/char/hvc_iucv.c
+++ b/drivers/char/hvc_iucv.c
@@ -139,6 +139,8 @@ struct hvc_iucv_private *hvc_iucv_get_private(uint32_t num)
 *
 * This function allocates a new struct iucv_tty_buffer element and, optionally,
 * allocates an internal data buffer with the specified size @size.
+ * The internal data buffer is always allocated with GFP_DMA which is
+ * required for receiving and sending data with IUCV.
 * Note: The total message size arises from the internal buffer size and the
 *       members of the iucv_tty_msg structure.
 * The function returns NULL if memory allocation has failed.
@@ -154,7 +156,7 @@ static struct iucv_tty_buffer *alloc_tty_buffer(size_t size, gfp_t flags)
        if (size > 0) {
                bufp->msg.length = MSG_SIZE(size);
-                bufp->mbuf = kmalloc(bufp->msg.length, flags);
+                bufp->mbuf = kmalloc(bufp->msg.length, flags | GFP_DMA);
                if (!bufp->mbuf) {
                        mempool_free(bufp, hvc_iucv_mempool);
                        return NULL;
@@ -237,7 +239,7 @@ static int hvc_iucv_write(struct hvc_iucv_private *priv,
        if (!rb->mbuf) { /* message not yet received ... */
                /* allocate mem to store msg data; if no memory is available
                 * then leave the buffer on the list and re-try later */
-                rb->mbuf = kmalloc(rb->msg.length, GFP_ATOMIC);
+                rb->mbuf = kmalloc(rb->msg.length, GFP_ATOMIC | GFP_DMA);
                if (!rb->mbuf)
                        return -ENOMEM;
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 578595c4425d..a1d381171388 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -149,13 +149,12 @@ static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start)
 static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate)
 {
-        struct sh_timer_config *cfg = p->pdev->dev.platform_data;
        int ret;
        /* enable clock */
        ret = clk_enable(p->clk);
        if (ret) {
-                pr_err("sh_cmt: cannot enable clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot enable clock\n");
                return ret;
        }
@@ -278,7 +277,7 @@ static void sh_cmt_clock_event_program_verify(struct sh_cmt_priv *p,
                        delay = 1;
                if (!delay)
-                        pr_warning("sh_cmt: too long delay\n");
+                        dev_warn(&p->pdev->dev, "too long delay\n");
        } while (delay);
 }
@@ -288,7 +287,7 @@ static void sh_cmt_set_next(struct sh_cmt_priv *p, unsigned long delta)
        unsigned long flags;
        if (delta > p->max_match_value)
-                pr_warning("sh_cmt: delta out of range\n");
+                dev_warn(&p->pdev->dev, "delta out of range\n");
        spin_lock_irqsave(&p->lock, flags);
        p->next_match_value = delta;
@@ -450,7 +449,7 @@ static int sh_cmt_register_clocksource(struct sh_cmt_priv *p,
        cs->resume = sh_cmt_clocksource_resume;
        cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8);
        cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
-        pr_info("sh_cmt: %s used as clock source\n", cs->name);
+        dev_info(&p->pdev->dev, "used as clock source\n");
        clocksource_register(cs);
        return 0;
 }
@@ -496,13 +495,11 @@ static void sh_cmt_clock_event_mode(enum clock_event_mode mode,
        switch (mode) {
        case CLOCK_EVT_MODE_PERIODIC:
-                pr_info("sh_cmt: %s used for periodic clock events\n",
+                dev_info(&p->pdev->dev, "used for periodic clock events\n");
-                        ced->name);
                sh_cmt_clock_event_start(p, 1);
                break;
        case CLOCK_EVT_MODE_ONESHOT:
-                pr_info("sh_cmt: %s used for oneshot clock events\n",
+                dev_info(&p->pdev->dev, "used for oneshot clock events\n");
-                        ced->name);
                sh_cmt_clock_event_start(p, 0);
                break;
        case CLOCK_EVT_MODE_SHUTDOWN:
@@ -543,7 +540,7 @@ static void sh_cmt_register_clockevent(struct sh_cmt_priv *p,
        ced->set_next_event = sh_cmt_clock_event_next;
        ced->set_mode = sh_cmt_clock_event_mode;
-        pr_info("sh_cmt: %s used for clock events\n", ced->name);
+        dev_info(&p->pdev->dev, "used for clock events\n");
        clockevents_register_device(ced);
 }
@@ -600,12 +597,12 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
        /* map memory, let mapbase point to our channel */
        p->mapbase = ioremap_nocache(res->start, resource_size(res));
        if (p->mapbase == NULL) {
-                pr_err("sh_cmt: failed to remap I/O memory\n");
+                dev_err(&p->pdev->dev, "failed to remap I/O memory\n");
                goto err0;
        }
        /* request irq using setup_irq() (too early for request_irq()) */
-        p->irqaction.name = cfg->name;
+        p->irqaction.name = dev_name(&p->pdev->dev);
        p->irqaction.handler = sh_cmt_interrupt;
        p->irqaction.dev_id = p;
        p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
@@ -613,7 +610,7 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
        /* get hold of clock */
        p->clk = clk_get(&p->pdev->dev, cfg->clk);
        if (IS_ERR(p->clk)) {
-                pr_err("sh_cmt: cannot get clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot get clock\n");
                ret = PTR_ERR(p->clk);
                goto err1;
        }
@@ -628,17 +625,17 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
                p->clear_bits = ~0xc000;
        }
-        ret = sh_cmt_register(p, cfg->name,
+        ret = sh_cmt_register(p, (char *)dev_name(&p->pdev->dev),
                              cfg->clockevent_rating,
                              cfg->clocksource_rating);
        if (ret) {
-                pr_err("sh_cmt: registration failed\n");
+                dev_err(&p->pdev->dev, "registration failed\n");
                goto err1;
        }
        ret = setup_irq(irq, &p->irqaction);
        if (ret) {
-                pr_err("sh_cmt: failed to request irq %d\n", irq);
+                dev_err(&p->pdev->dev, "failed to request irq %d\n", irq);
                goto err1;
        }
@@ -653,11 +650,10 @@ err0:
 static int __devinit sh_cmt_probe(struct platform_device *pdev)
 {
        struct sh_cmt_priv *p = platform_get_drvdata(pdev);
-        struct sh_timer_config *cfg = pdev->dev.platform_data;
        int ret;
        if (p) {
-                pr_info("sh_cmt: %s kept as earlytimer\n", cfg->name);
+                dev_info(&pdev->dev, "kept as earlytimer\n");
                return 0;
        }
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index 4c8a759e60cd..8ce355572d16 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -118,13 +118,12 @@ static void sh_mtu2_start_stop_ch(struct sh_mtu2_priv *p, int start)
 static int sh_mtu2_enable(struct sh_mtu2_priv *p)
 {
-        struct sh_timer_config *cfg = p->pdev->dev.platform_data;
        int ret;
        /* enable clock */
        ret = clk_enable(p->clk);
        if (ret) {
-                pr_err("sh_mtu2: cannot enable clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot enable clock\n");
                return ret;
        }
@@ -193,8 +192,7 @@ static void sh_mtu2_clock_event_mode(enum clock_event_mode mode,
        switch (mode) {
        case CLOCK_EVT_MODE_PERIODIC:
-                pr_info("sh_mtu2: %s used for periodic clock events\n",
+                dev_info(&p->pdev->dev, "used for periodic clock events\n");
-                        ced->name);
                sh_mtu2_enable(p);
                break;
        case CLOCK_EVT_MODE_UNUSED:
@@ -221,13 +219,13 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p,
        ced->cpumask = cpumask_of(0);
        ced->set_mode = sh_mtu2_clock_event_mode;
-        pr_info("sh_mtu2: %s used for clock events\n", ced->name);
+        dev_info(&p->pdev->dev, "used for clock events\n");
        clockevents_register_device(ced);
        ret = setup_irq(p->irqaction.irq, &p->irqaction);
        if (ret) {
-                pr_err("sh_mtu2: failed to request irq %d\n",
+                dev_err(&p->pdev->dev, "failed to request irq %d\n",
-                       p->irqaction.irq);
+                        p->irqaction.irq);
                return;
        }
 }
@@ -273,12 +271,12 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
        /* map memory, let mapbase point to our channel */
        p->mapbase = ioremap_nocache(res->start, resource_size(res));
        if (p->mapbase == NULL) {
-                pr_err("sh_mtu2: failed to remap I/O memory\n");
+                dev_err(&p->pdev->dev, "failed to remap I/O memory\n");
                goto err0;
        }
        /* setup data for setup_irq() (too early for request_irq()) */
-        p->irqaction.name = cfg->name;
+        p->irqaction.name = dev_name(&p->pdev->dev);
        p->irqaction.handler = sh_mtu2_interrupt;
        p->irqaction.dev_id = p;
        p->irqaction.irq = irq;
@@ -287,12 +285,13 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
        /* get hold of clock */
        p->clk = clk_get(&p->pdev->dev, cfg->clk);
        if (IS_ERR(p->clk)) {
-                pr_err("sh_mtu2: cannot get clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot get clock\n");
                ret = PTR_ERR(p->clk);
                goto err1;
        }
-        return sh_mtu2_register(p, cfg->name, cfg->clockevent_rating);
+        return sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
+                                cfg->clockevent_rating);
 err1:
        iounmap(p->mapbase);
 err0:
@@ -302,11 +301,10 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
 static int __devinit sh_mtu2_probe(struct platform_device *pdev)
 {
        struct sh_mtu2_priv *p = platform_get_drvdata(pdev);
-        struct sh_timer_config *cfg = pdev->dev.platform_data;
        int ret;
        if (p) {
-                pr_info("sh_mtu2: %s kept as earlytimer\n", cfg->name);
+                dev_info(&pdev->dev, "kept as earlytimer\n");
                return 0;
        }
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 961f5b5ef6a3..34239453ebaf 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -106,13 +106,12 @@ static void sh_tmu_start_stop_ch(struct sh_tmu_priv *p, int start)
 static int sh_tmu_enable(struct sh_tmu_priv *p)
 {
-        struct sh_timer_config *cfg = p->pdev->dev.platform_data;
        int ret;
        /* enable clock */
        ret = clk_enable(p->clk);
        if (ret) {
-                pr_err("sh_tmu: cannot enable clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot enable clock\n");
                return ret;
        }
@@ -228,7 +227,7 @@ static int sh_tmu_register_clocksource(struct sh_tmu_priv *p,
        cs->disable = sh_tmu_clocksource_disable;
        cs->mask = CLOCKSOURCE_MASK(32);
        cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
-        pr_info("sh_tmu: %s used as clock source\n", cs->name);
+        dev_info(&p->pdev->dev, "used as clock source\n");
        clocksource_register(cs);
        return 0;
 }
@@ -276,13 +275,11 @@ static void sh_tmu_clock_event_mode(enum clock_event_mode mode,
        switch (mode) {
        case CLOCK_EVT_MODE_PERIODIC:
-                pr_info("sh_tmu: %s used for periodic clock events\n",
+                dev_info(&p->pdev->dev, "used for periodic clock events\n");
-                        ced->name);
                sh_tmu_clock_event_start(p, 1);
                break;
        case CLOCK_EVT_MODE_ONESHOT:
-                pr_info("sh_tmu: %s used for oneshot clock events\n",
+                dev_info(&p->pdev->dev, "used for oneshot clock events\n");
-                        ced->name);
                sh_tmu_clock_event_start(p, 0);
                break;
        case CLOCK_EVT_MODE_UNUSED:
@@ -323,13 +320,13 @@ static void sh_tmu_register_clockevent(struct sh_tmu_priv *p,
        ced->set_next_event = sh_tmu_clock_event_next;
        ced->set_mode = sh_tmu_clock_event_mode;
-        pr_info("sh_tmu: %s used for clock events\n", ced->name);
+        dev_info(&p->pdev->dev, "used for clock events\n");
        clockevents_register_device(ced);
        ret = setup_irq(p->irqaction.irq, &p->irqaction);
        if (ret) {
-                pr_err("sh_tmu: failed to request irq %d\n",
+                dev_err(&p->pdev->dev, "failed to request irq %d\n",
-                       p->irqaction.irq);
+                        p->irqaction.irq);
                return;
        }
 }
@@ -378,12 +375,12 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
        /* map memory, let mapbase point to our channel */
        p->mapbase = ioremap_nocache(res->start, resource_size(res));
        if (p->mapbase == NULL) {
-                pr_err("sh_tmu: failed to remap I/O memory\n");
+                dev_err(&p->pdev->dev, "failed to remap I/O memory\n");
                goto err0;
        }
        /* setup data for setup_irq() (too early for request_irq()) */
-        p->irqaction.name = cfg->name;
+        p->irqaction.name = dev_name(&p->pdev->dev);
        p->irqaction.handler = sh_tmu_interrupt;
        p->irqaction.dev_id = p;
        p->irqaction.irq = irq;
@@ -392,12 +389,12 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
        /* get hold of clock */
        p->clk = clk_get(&p->pdev->dev, cfg->clk);
        if (IS_ERR(p->clk)) {
-                pr_err("sh_tmu: cannot get clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot get clock\n");
                ret = PTR_ERR(p->clk);
                goto err1;
        }
-        return sh_tmu_register(p, cfg->name,
+        return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
                               cfg->clockevent_rating,
                               cfg->clocksource_rating);
 err1:
@@ -409,11 +406,10 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
 static int __devinit sh_tmu_probe(struct platform_device *pdev)
 {
        struct sh_tmu_priv *p = platform_get_drvdata(pdev);
-        struct sh_timer_config *cfg = pdev->dev.platform_data;
        int ret;
        if (p) {
-                pr_info("sh_tmu: %s kept as earlytimer\n", cfg->name);
+                dev_info(&pdev->dev, "kept as earlytimer\n");
                return 0;
        }
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 67bc2ece7b4b..2d5d575e889d 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -766,7 +766,7 @@ static void cpufreq_sysfs_release(struct kobject *kobj)
        complete(&policy->kobj_unregister);
 }
-static struct sysfs_ops sysfs_ops = {
+static const struct sysfs_ops sysfs_ops = {
        .show   = show,
        .store  = store,
 };
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 97b003839fb6..8719b36e1a4d 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -22,6 +22,7 @@ static int __init cpuidle_sysfs_setup(char *unused)
 __setup("cpuidle_sysfs_switch", cpuidle_sysfs_setup);
 static ssize_t show_available_governors(struct sysdev_class *class,
+                                        struct sysdev_class_attribute *attr,
                                        char *buf)
 {
        ssize_t i = 0;
@@ -41,6 +42,7 @@ out:
 }
 static ssize_t show_current_driver(struct sysdev_class *class,
+                                   struct sysdev_class_attribute *attr,
                                   char *buf)
 {
        ssize_t ret;
@@ -56,6 +58,7 @@ static ssize_t show_current_driver(struct sysdev_class *class,
 }
 static ssize_t show_current_governor(struct sysdev_class *class,
+                                     struct sysdev_class_attribute *attr,
                                     char *buf)
 {
        ssize_t ret;
@@ -71,6 +74,7 @@ static ssize_t show_current_governor(struct sysdev_class *class,
 }
 static ssize_t store_current_governor(struct sysdev_class *class,
+                                      struct sysdev_class_attribute *attr,
                                      const char *buf, size_t count)
 {
        char gov_name[CPUIDLE_NAME_LEN];
@@ -191,7 +195,7 @@ static ssize_t cpuidle_store(struct kobject * kobj, struct attribute * attr,
        return ret;
 }
-static struct sysfs_ops cpuidle_sysfs_ops = {
+static const struct sysfs_ops cpuidle_sysfs_ops = {
        .show = cpuidle_show,
        .store = cpuidle_store,
 };
@@ -277,7 +281,7 @@ static ssize_t cpuidle_state_show(struct kobject * kobj,
        return ret;
 }
-static struct sysfs_ops cpuidle_state_sysfs_ops = {
+static const struct sysfs_ops cpuidle_state_sysfs_ops = {
        .show = cpuidle_state_show,
 };
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index af14c9a5b8d4..0099340b9616 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -1138,7 +1138,7 @@ ioat_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
        return entry->show(&chan->common, page);
 }
-struct sysfs_ops ioat_sysfs_ops = {
+const struct sysfs_ops ioat_sysfs_ops = {
        .show   = ioat_attr_show,
 };
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index 4f747a254074..86b97ac8774e 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -346,7 +346,7 @@ bool ioat_cleanup_preamble(struct ioat_chan_common *chan,
                           unsigned long *phys_complete);
 void ioat_kobject_add(struct ioatdma_device *device, struct kobj_type *type);
 void ioat_kobject_del(struct ioatdma_device *device);
-extern struct sysfs_ops ioat_sysfs_ops;
+extern const struct sysfs_ops ioat_sysfs_ops;
 extern struct ioat_sysfs_entry ioat_version_attr;
 extern struct ioat_sysfs_entry ioat_cap_attr;
 #endif /* IOATDMA_H */
diff --git a/drivers/edac/edac_device_sysfs.c b/drivers/edac/edac_device_sysfs.c
index 53764577035f..5fdedbc0f545 100644
--- a/drivers/edac/edac_device_sysfs.c
+++ b/drivers/edac/edac_device_sysfs.c
@@ -137,7 +137,7 @@ static ssize_t edac_dev_ctl_info_store(struct kobject *kobj,
 }
 /* edac_dev file operations for an 'ctl_info' */
-static struct sysfs_ops device_ctl_info_ops = {
+static const struct sysfs_ops device_ctl_info_ops = {
        .show = edac_dev_ctl_info_show,
        .store = edac_dev_ctl_info_store
 };
@@ -373,7 +373,7 @@ static ssize_t edac_dev_instance_store(struct kobject *kobj,
 }
 /* edac_dev file operations for an 'instance' */
-static struct sysfs_ops device_instance_ops = {
+static const struct sysfs_ops device_instance_ops = {
        .show = edac_dev_instance_show,
        .store = edac_dev_instance_store
 };
@@ -476,7 +476,7 @@ static ssize_t edac_dev_block_store(struct kobject *kobj,
 }
 /* edac_dev file operations for a 'block' */
-static struct sysfs_ops device_block_ops = {
+static const struct sysfs_ops device_block_ops = {
        .show = edac_dev_block_show,
        .store = edac_dev_block_store
 };
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index e1d4ce083481..88840e9fa3e0 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -245,7 +245,7 @@ static ssize_t csrowdev_store(struct kobject *kobj, struct attribute *attr,
        return -EIO;
 }
-static struct sysfs_ops csrowfs_ops = {
+static const struct sysfs_ops csrowfs_ops = {
        .show = csrowdev_show,
        .store = csrowdev_store
 };
@@ -575,7 +575,7 @@ static ssize_t mcidev_store(struct kobject *kobj, struct attribute *attr,
 }
 /* Intermediate show/store table */
-static struct sysfs_ops mci_ops = {
+static const struct sysfs_ops mci_ops = {
        .show = mcidev_show,
        .store = mcidev_store
 };
diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
index fb60a877d768..bef94e3d9944 100644
--- a/drivers/edac/edac_pci_sysfs.c
+++ b/drivers/edac/edac_pci_sysfs.c
@@ -121,7 +121,7 @@ static ssize_t edac_pci_instance_store(struct kobject *kobj,
 }
 /* fs_ops table */
-static struct sysfs_ops pci_instance_ops = {
+static const struct sysfs_ops pci_instance_ops = {
        .show = edac_pci_instance_show,
        .store = edac_pci_instance_store
 };
@@ -261,7 +261,7 @@ static ssize_t edac_pci_dev_store(struct kobject *kobj,
        return -EIO;
 }
-static struct sysfs_ops edac_pci_sysfs_ops = {
+static const struct sysfs_ops edac_pci_sysfs_ops = {
        .show = edac_pci_dev_show,
        .store = edac_pci_dev_store
 };
diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
index 014cabd3afda..5db0518c66da 100644
--- a/drivers/firewire/core-device.c
+++ b/drivers/firewire/core-device.c
@@ -33,7 +33,6 @@
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/rwsem.h>
-#include <linux/semaphore.h>
 #include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/workqueue.h>
@@ -828,9 +827,9 @@ static int update_unit(struct device *dev, void *data)
        struct fw_driver *driver = (struct fw_driver *)dev->driver;
        if (is_fw_unit(dev) && driver != NULL && driver->update != NULL) {
-                down(&dev->sem);
+                device_lock(dev);
                driver->update(unit);
-                up(&dev->sem);
+                device_unlock(dev);
        }
        return 0;
diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index 9e4f59dc7f1e..110e24e50883 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c
@@ -122,7 +122,7 @@ edd_attr_show(struct kobject * kobj, struct attribute *attr, char *buf)
        return ret;
 }
-static struct sysfs_ops edd_attr_ops = {
+static const struct sysfs_ops edd_attr_ops = {
        .show = edd_attr_show,
 };
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index f4f709d1370b..082f06ecd327 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -362,7 +362,7 @@ static ssize_t efivar_attr_store(struct kobject *kobj, struct attribute *attr,
        return ret;
 }
-static struct sysfs_ops efivar_attr_ops = {
+static const struct sysfs_ops efivar_attr_ops = {
        .show = efivar_attr_show,
        .store = efivar_attr_store,
 };
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index a3600e3ed0fa..ed2801c378de 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -519,7 +519,7 @@ static ssize_t ibft_show_attribute(struct kobject *kobj,
        return ret;
 }
-static struct sysfs_ops ibft_attr_ops = {
+static const struct sysfs_ops ibft_attr_ops = {
        .show = ibft_show_attribute,
 };
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 20f645743ead..d59f7cad2269 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -74,7 +74,7 @@ static struct attribute *def_attrs[] = {
        NULL
 };
-static struct sysfs_ops memmap_attr_ops = {
+static const struct sysfs_ops memmap_attr_ops = {
        .show = memmap_attr_show,
 };
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 9006fdb26fea..6d1b86661e63 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -623,7 +623,9 @@ static const struct attribute_group gpiochip_attr_group = {
 * /sys/class/gpio/unexport ... write-only
 *      integer N ... number of GPIO to unexport
 */
-static ssize_t export_store(struct class *class, const char *buf, size_t len)
+static ssize_t export_store(struct class *class,
+                                struct class_attribute *attr,
+                                const char *buf, size_t len)
 {
        long    gpio;
        int     status;
@@ -653,7 +655,9 @@ done:
        return status ? : len;
 }
-static ssize_t unexport_store(struct class *class, const char *buf, size_t len)
+static ssize_t unexport_store(struct class *class,
+                                struct class_attribute *attr,
+                                const char *buf, size_t len)
 {
        long    gpio;
        int     status;
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 7e42b7e9d43a..014ce24761b9 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -70,19 +70,17 @@ static int drm_class_resume(struct device *dev)
        return 0;
 }
-/* Display the version of drm_core. This doesn't work right in current design */
-static ssize_t version_show(struct class *dev, char *buf)
-{
-        return sprintf(buf, "%s %d.%d.%d %s\n", CORE_NAME, CORE_MAJOR,
-                       CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
-}
 static char *drm_devnode(struct device *dev, mode_t *mode)
 {
        return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
 }
-static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
+static CLASS_ATTR_STRING(version, S_IRUGO,
+                CORE_NAME " "
+                __stringify(CORE_MAJOR) "."
+                __stringify(CORE_MINOR) "."
+                __stringify(CORE_PATCHLEVEL) " "
+                CORE_DATE);
 /**
 * drm_sysfs_create - create a struct drm_sysfs_class structure
@@ -109,7 +107,7 @@ struct class *drm_sysfs_create(struct module *owner, char *name)
        class->suspend = drm_class_suspend;
        class->resume = drm_class_resume;
-        err = class_create_file(class, &class_attr_version);
+        err = class_create_file(class, &class_attr_version.attr);
        if (err)
                goto err_out_class;
@@ -132,7 +130,7 @@ void drm_sysfs_destroy(void)
 {
        if ((drm_class == NULL) || (IS_ERR(drm_class)))
                return;
-        class_remove_file(drm_class, &class_attr_version);
+        class_remove_file(drm_class, &class_attr_version.attr);
        class_destroy(drm_class);
 }
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index c7320ce4567d..89c38c49066f 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -128,7 +128,7 @@ static struct attribute *ttm_bo_global_attrs[] = {
        NULL
 };
-static struct sysfs_ops ttm_bo_global_ops = {
+static const struct sysfs_ops ttm_bo_global_ops = {
        .show = &ttm_bo_global_show
 };
diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index f5245c02b8fd..eb143e04d402 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -152,7 +152,7 @@ static struct attribute *ttm_mem_zone_attrs[] = {
        NULL
 };
-static struct sysfs_ops ttm_mem_zone_ops = {
+static const struct sysfs_ops ttm_mem_zone_ops = {
        .show = &ttm_mem_zone_show,
        .store = &ttm_mem_zone_store
 };
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 913abd7c172f..c7c237537f81 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -850,7 +850,7 @@ static const struct i2c_algorithm omap_i2c_algo = {
        .functionality  = omap_i2c_func,
 };
-static int __init
+static int __devinit
 omap_i2c_probe(struct platform_device *pdev)
 {
        struct omap_i2c_dev     *dev;
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 5122b5a8aa2d..18350213479e 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -19,7 +19,6 @@
 #include <linux/moduleparam.h>
 #include <linux/mutex.h>
 #include <linux/freezer.h>
-#include <linux/semaphore.h>
 #include <asm/atomic.h>
 #include "csr.h"
@@ -1397,9 +1396,9 @@ static int update_pdrv(struct device *dev, void *data)
                        pdrv = container_of(drv, struct hpsb_protocol_driver,
                                            driver);
                        if (pdrv->update) {
-                                down(&ud->device.sem);
+                                device_lock(&ud->device);
                                error = pdrv->update(ud);
-                                up(&ud->device.sem);
+                                device_unlock(&ud->device);
                        }
                        if (error)
                                device_release_driver(&ud->device);
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 5130fc55b8e2..764787ebe8d8 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -3597,7 +3597,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
                       atomic_long_read(&group->counter[cm_attr->index]));
 }
-static struct sysfs_ops cm_counter_ops = {
+static const struct sysfs_ops cm_counter_ops = {
        .show = cm_show_counter
 };
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 158a214da2f7..1558bb7fc74d 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -79,7 +79,7 @@ static ssize_t port_attr_show(struct kobject *kobj,
        return port_attr->show(p, port_attr, buf);
 }
-static struct sysfs_ops port_sysfs_ops = {
+static const struct sysfs_ops port_sysfs_ops = {
        .show = port_attr_show
 };
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index 1b09b735c5a8..017d6e24448f 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -1336,11 +1336,8 @@ static void ib_ucm_remove_one(struct ib_device *device)
        device_unregister(&ucm_dev->dev);
 }
-static ssize_t show_abi_version(struct class *class, char *buf)
+static CLASS_ATTR_STRING(abi_version, S_IRUGO,
-{
+                         __stringify(IB_USER_CM_ABI_VERSION));
-        return sprintf(buf, "%d\n", IB_USER_CM_ABI_VERSION);
-}
-static CLASS_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
 static int __init ib_ucm_init(void)
 {
@@ -1353,7 +1350,7 @@ static int __init ib_ucm_init(void)
                goto error1;
        }
-        ret = class_create_file(&cm_class, &class_attr_abi_version);
+        ret = class_create_file(&cm_class, &class_attr_abi_version.attr);
        if (ret) {
                printk(KERN_ERR "ucm: couldn't create abi_version attribute\n");
                goto error2;
@@ -1367,7 +1364,7 @@ static int __init ib_ucm_init(void)
        return 0;
 error3:
-        class_remove_file(&cm_class, &class_attr_abi_version);
+        class_remove_file(&cm_class, &class_attr_abi_version.attr);
 error2:
        unregister_chrdev_region(IB_UCM_BASE_DEV, IB_UCM_MAX_DEVICES);
 error1:
@@ -1377,7 +1374,7 @@ error1:
 static void __exit ib_ucm_cleanup(void)
 {
        ib_unregister_client(&ucm_client);
-        class_remove_file(&cm_class, &class_attr_abi_version);
+        class_remove_file(&cm_class, &class_attr_abi_version.attr);
        unregister_chrdev_region(IB_UCM_BASE_DEV, IB_UCM_MAX_DEVICES);
        if (overflow_maj)
                unregister_chrdev_region(overflow_maj, IB_UCM_MAX_DEVICES);
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 02d360cfc2f7..04b585e86cb2 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -965,11 +965,8 @@ static ssize_t show_port(struct device *dev, struct device_attribute *attr,
 }
 static DEVICE_ATTR(port, S_IRUGO, show_port, NULL);
-static ssize_t show_abi_version(struct class *class, char *buf)
+static CLASS_ATTR_STRING(abi_version, S_IRUGO,
-{
+                         __stringify(IB_USER_MAD_ABI_VERSION));
-        return sprintf(buf, "%d\n", IB_USER_MAD_ABI_VERSION);
-}
-static CLASS_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
 static dev_t overflow_maj;
 static DECLARE_BITMAP(overflow_map, IB_UMAD_MAX_PORTS);
@@ -1194,7 +1191,7 @@ static int __init ib_umad_init(void)
                goto out_chrdev;
        }
-        ret = class_create_file(umad_class, &class_attr_abi_version);
+        ret = class_create_file(umad_class, &class_attr_abi_version.attr);
        if (ret) {
                printk(KERN_ERR "user_mad: couldn't create abi_version attribute\n");
                goto out_class;
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 4fa2e6516441..d805cf365c8d 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -691,11 +691,8 @@ static ssize_t show_dev_abi_version(struct device *device,
 }
 static DEVICE_ATTR(abi_version, S_IRUGO, show_dev_abi_version, NULL);
-static ssize_t show_abi_version(struct class *class, char *buf)
+static CLASS_ATTR_STRING(abi_version, S_IRUGO,
-{
+                         __stringify(IB_USER_VERBS_ABI_VERSION));
-        return sprintf(buf, "%d\n", IB_USER_VERBS_ABI_VERSION);
-}
-static CLASS_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
 static dev_t overflow_maj;
 static DECLARE_BITMAP(overflow_map, IB_UVERBS_MAX_DEVICES);
@@ -841,7 +838,7 @@ static int __init ib_uverbs_init(void)
                goto out_chrdev;
        }
-        ret = class_create_file(uverbs_class, &class_attr_abi_version);
+        ret = class_create_file(uverbs_class, &class_attr_abi_version.attr);
        if (ret) {
                printk(KERN_ERR "user_verbs: couldn't create abi_version attribute\n");
                goto out_class;
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index 437f55c5d18d..419795f4a2aa 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -321,6 +321,7 @@ int wf_register_sensor(struct wf_sensor *new_sr)
        kref_init(&new_sr->ref);
        list_add(&new_sr->link, &wf_sensors);
+        sysfs_attr_init(&new_sr->attr.attr);
        new_sr->attr.attr.name = new_sr->name;
        new_sr->attr.attr.mode = 0444;
        new_sr->attr.show = wf_show_sensor;
diff --git a/drivers/macintosh/windfarm_smu_controls.c b/drivers/macintosh/windfarm_smu_controls.c
index 6c68b9e5f5c4..43137b421f92 100644
--- a/drivers/macintosh/windfarm_smu_controls.c
+++ b/drivers/macintosh/windfarm_smu_controls.c
@@ -173,6 +173,7 @@ static struct smu_fan_control *smu_fan_create(struct device_node *node,
        fct->fan_type = pwm_fan;
        fct->ctrl.type = pwm_fan ? WF_CONTROL_PWM_FAN : WF_CONTROL_RPM_FAN;
+        sysfs_attr_init(&fct->ctrl.attr.attr);
        /* We use the name & location here the same way we do for SMU sensors,
         * see the comment in windfarm_smu_sensors.c. The locations are a bit
diff --git a/drivers/md/dm-sysfs.c b/drivers/md/dm-sysfs.c
index f91b40942e07..84d2b91e4efb 100644
--- a/drivers/md/dm-sysfs.c
+++ b/drivers/md/dm-sysfs.c
@@ -75,7 +75,7 @@ static struct attribute *dm_attrs[] = {
        NULL,
 };
-static struct sysfs_ops dm_sysfs_ops = {
+static const struct sysfs_ops dm_sysfs_ops = {
        .show   = dm_attr_show,
 };
diff --git a/drivers/md/md.c b/drivers/md/md.c
index a20a71e5efd3..fdc1890b6ac5 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2642,7 +2642,7 @@ static void rdev_free(struct kobject *ko)
        mdk_rdev_t *rdev = container_of(ko, mdk_rdev_t, kobj);
        kfree(rdev);
 }
-static struct sysfs_ops rdev_sysfs_ops = {
+static const struct sysfs_ops rdev_sysfs_ops = {
        .show           = rdev_attr_show,
        .store          = rdev_attr_store,
 };
@@ -4059,7 +4059,7 @@ static void md_free(struct kobject *ko)
        kfree(mddev);
 }
-static struct sysfs_ops md_sysfs_ops = {
+static const struct sysfs_ops md_sysfs_ops = {
        .show   = md_attr_show,
        .store  = md_attr_store,
 };
diff --git a/drivers/media/video/omap24xxcam.c b/drivers/media/video/omap24xxcam.c
index 7400eacb4d64..142c327afb32 100644
--- a/drivers/media/video/omap24xxcam.c
+++ b/drivers/media/video/omap24xxcam.c
@@ -1735,7 +1735,7 @@ static struct v4l2_int_device omap24xxcam = {
 *
 */
-static int __init omap24xxcam_probe(struct platform_device *pdev)
+static int __devinit omap24xxcam_probe(struct platform_device *pdev)
 {
        struct omap24xxcam_device *cam;
        struct resource *mem;
diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c
index 04c27266f567..779aa8ebe4cf 100644
--- a/drivers/misc/phantom.c
+++ b/drivers/misc/phantom.c
@@ -497,12 +497,7 @@ static struct pci_driver phantom_pci_driver = {
        .resume = phantom_resume
 };
-static ssize_t phantom_show_version(struct class *cls, char *buf)
+static CLASS_ATTR_STRING(version, 0444, PHANTOM_VERSION);
-{
-        return sprintf(buf, PHANTOM_VERSION "\n");
-}
-static CLASS_ATTR(version, 0444, phantom_show_version, NULL);
 static int __init phantom_init(void)
 {
@@ -515,7 +510,7 @@ static int __init phantom_init(void)
                printk(KERN_ERR "phantom: can't register phantom class\n");
                goto err;
        }
-        retval = class_create_file(phantom_class, &class_attr_version);
+        retval = class_create_file(phantom_class, &class_attr_version.attr);
        if (retval) {
                printk(KERN_ERR "phantom: can't create sysfs version file\n");
                goto err_class;
@@ -541,7 +536,7 @@ static int __init phantom_init(void)
 err_unchr:
        unregister_chrdev_region(dev, PHANTOM_MAX_MINORS);
 err_attr:
-        class_remove_file(phantom_class, &class_attr_version);
+        class_remove_file(phantom_class, &class_attr_version.attr);
 err_class:
        class_destroy(phantom_class);
 err:
@@ -554,7 +549,7 @@ static void __exit phantom_exit(void)
        unregister_chrdev_region(MKDEV(phantom_major, 0), PHANTOM_MAX_MINORS);
-        class_remove_file(phantom_class, &class_attr_version);
+        class_remove_file(phantom_class, &class_attr_version.attr);
        class_destroy(phantom_class);
        pr_debug("phantom: module successfully removed\n");
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index bc45ef9af17d..fad40aa6f099 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -89,7 +89,8 @@ DEFINE_MUTEX(ubi_devices_mutex);
 static DEFINE_SPINLOCK(ubi_devices_lock);
 /* "Show" method for files in '/<sysfs>/class/ubi/' */
-static ssize_t ubi_version_show(struct class *class, char *buf)
+static ssize_t ubi_version_show(struct class *class, struct class_attribute *attr,
+                                char *buf)
 {
        return sprintf(buf, "%d\n", UBI_VERSION);
 }
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 5acd557cea9b..b8bec086daa1 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -51,7 +51,9 @@
 * "show" function for the bond_masters attribute.
 * The class parameter is ignored.
 */
-static ssize_t bonding_show_bonds(struct class *cls, char *buf)
+static ssize_t bonding_show_bonds(struct class *cls,
+                                  struct class_attribute *attr,
+                                  char *buf)
 {
        struct net *net = current->nsproxy->net_ns;
        struct bond_net *bn = net_generic(net, bond_net_id);
@@ -98,6 +100,7 @@ static struct net_device *bond_get_by_name(struct net *net, const char *ifname)
 */
 static ssize_t bonding_store_bonds(struct class *cls,
+                                   struct class_attribute *attr,
                                   const char *buffer, size_t count)
 {
        struct net *net = current->nsproxy->net_ns;
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index f2b937966950..0bc777bac9b4 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -1577,7 +1577,7 @@ static struct attribute * veth_pool_attrs[] = {
        NULL,
 };
-static struct sysfs_ops veth_pool_ops = {
+static const struct sysfs_ops veth_pool_ops = {
        .show   = veth_pool_show,
        .store  = veth_pool_store,
 };
diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c
index 966de5d69521..e6e972d9b7ca 100644
--- a/drivers/net/iseries_veth.c
+++ b/drivers/net/iseries_veth.c
@@ -384,7 +384,7 @@ static struct attribute *veth_cnx_default_attrs[] = {
        NULL
 };
-static struct sysfs_ops veth_cnx_sysfs_ops = {
+static const struct sysfs_ops veth_cnx_sysfs_ops = {
                .show = veth_cnx_attribute_show
 };
@@ -441,7 +441,7 @@ static struct attribute *veth_port_default_attrs[] = {
        NULL
 };
-static struct sysfs_ops veth_port_sysfs_ops = {
+static const struct sysfs_ops veth_port_sysfs_ops = {
        .show = veth_port_attribute_show
 };
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 0bc5d474b168..1062b8ffe244 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -481,7 +481,7 @@ pdcspath_attr_store(struct kobject *kobj, struct attribute *attr,
        return ret;
 }
-static struct sysfs_ops pdcspath_attr_ops = {
+static const struct sysfs_ops pdcspath_attr_ops = {
        .show = pdcspath_attr_show,
        .store = pdcspath_attr_store,
 };
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 712250f5874a..26301cb25e7f 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -288,9 +288,9 @@ void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *),
                        next = dev->bus_list.next;
                /* Run device routines with the device locked */
-                down(&dev->dev.sem);
+                device_lock(&dev->dev);
                retval = cb(dev, userdata);
-                up(&dev->dev.sem);
+                device_unlock(&dev->dev);
                if (retval)
                        break;
        }
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
index 6151389fd903..0a894efd4b9b 100644
--- a/drivers/pci/hotplug/fakephp.c
+++ b/drivers/pci/hotplug/fakephp.c
@@ -73,7 +73,7 @@ static void legacy_release(struct kobject *kobj)
 }
 static struct kobj_type legacy_ktype = {
-        .sysfs_ops = &(struct sysfs_ops){
+        .sysfs_ops = &(const struct sysfs_ops){
                .store = legacy_store, .show = legacy_show
        },
        .release = &legacy_release,
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 807224ec8351..de296452c957 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -642,6 +642,7 @@ void pci_create_legacy_files(struct pci_bus *b)
        if (!b->legacy_io)
                goto kzalloc_err;
+        sysfs_bin_attr_init(b->legacy_io);
        b->legacy_io->attr.name = "legacy_io";
        b->legacy_io->size = 0xffff;
        b->legacy_io->attr.mode = S_IRUSR | S_IWUSR;
@@ -654,6 +655,7 @@ void pci_create_legacy_files(struct pci_bus *b)
                goto legacy_io_err;
        /* Allocated above after the legacy_io struct */
+        sysfs_bin_attr_init(b->legacy_mem);
        b->legacy_mem = b->legacy_io + 1;
        b->legacy_mem->attr.name = "legacy_mem";
        b->legacy_mem->size = 1024*1024;
@@ -800,6 +802,7 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine)
        if (res_attr) {
                char *res_attr_name = (char *)(res_attr + 1);
+                sysfs_bin_attr_init(res_attr);
                if (write_combine) {
                        pdev->res_attr_wc[num] = res_attr;
                        sprintf(res_attr_name, "resource%d_wc", num);
@@ -972,6 +975,7 @@ static int pci_create_capabilities_sysfs(struct pci_dev *dev)
                if (!attr)
                        return -ENOMEM;
+                sysfs_bin_attr_init(attr);
                attr->size = dev->vpd->len;
                attr->attr.name = "vpd";
                attr->attr.mode = S_IRUSR | S_IWUSR;
@@ -1038,6 +1042,7 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
                        retval = -ENOMEM;
                        goto err_resource_files;
                }
+                sysfs_bin_attr_init(attr);
                attr->size = rom_size;
                attr->attr.name = "rom";
                attr->attr.mode = S_IRUSR;
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 77b493b3d97b..897fa5ccdb78 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2486,7 +2486,7 @@ static int pci_dev_reset(struct pci_dev *dev, int probe)
        if (!probe) {
                pci_block_user_cfg_access(dev);
                /* block PM suspend, driver probe, etc. */
-                down(&dev->dev.sem);
+                device_lock(&dev->dev);
        }
        rc = pci_dev_specific_reset(dev, probe);
@@ -2508,7 +2508,7 @@ static int pci_dev_reset(struct pci_dev *dev, int probe)
        rc = pci_parent_bus_reset(dev, probe);
 done:
        if (!probe) {
-                up(&dev->dev.sem);
+                device_unlock(&dev->dev);
                pci_unblock_user_cfg_access(dev);
        }
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index 49c9e6c9779a..f75a44d37fbe 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -29,7 +29,7 @@ static ssize_t pci_slot_attr_store(struct kobject *kobj,
        return attribute->store ? attribute->store(slot, buf, len) : -EIO;
 }
-static struct sysfs_ops pci_slot_sysfs_ops = {
+static const struct sysfs_ops pci_slot_sysfs_ops = {
        .show = pci_slot_attr_show,
        .store = pci_slot_attr_store,
 };
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 0f98be4450b7..ad93ebd7b2a2 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -971,9 +971,9 @@ static int runtime_suspend(struct device *dev)
 {
        int rc;
-        down(&dev->sem);
+        device_lock(dev);
        rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND);
-        up(&dev->sem);
+        device_unlock(dev);
        return rc;
 }
@@ -981,9 +981,9 @@ static int runtime_resume(struct device *dev)
 {
        int rc;
-        down(&dev->sem);
+        device_lock(dev);
        rc = pcmcia_dev_resume(dev);
-        up(&dev->sem);
+        device_unlock(dev);
        return rc;
 }
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index cd2ee6fce1b4..e631dbeafd79 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -150,6 +150,7 @@ config MSI_LAPTOP
        tristate "MSI Laptop Extras"
        depends on ACPI
        depends on BACKLIGHT_CLASS_DEVICE
+        depends on RFKILL
        ---help---
          This is a driver for laptops built by MSI (MICRO-STAR
          INTERNATIONAL):
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 3aa57da8b43b..7ccf33c08967 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -57,7 +57,7 @@ enum hp_wmi_radio {
        HPWMI_WWAN = 2,
 };
-static int __init hp_wmi_bios_setup(struct platform_device *device);
+static int __devinit hp_wmi_bios_setup(struct platform_device *device);
 static int __exit hp_wmi_bios_remove(struct platform_device *device);
 static int hp_wmi_resume_handler(struct device *device);
@@ -447,7 +447,7 @@ static void cleanup_sysfs(struct platform_device *device)
        device_remove_file(&device->dev, &dev_attr_tablet);
 }
-static int __init hp_wmi_bios_setup(struct platform_device *device)
+static int __devinit hp_wmi_bios_setup(struct platform_device *device)
 {
        int err;
        int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 759763d18e4c..c2b05da4289a 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -58,6 +58,7 @@
 #include <linux/dmi.h>
 #include <linux/backlight.h>
 #include <linux/platform_device.h>
+#include <linux/rfkill.h>
 #define MSI_DRIVER_VERSION "0.5"
@@ -66,6 +67,20 @@
 #define MSI_EC_COMMAND_WIRELESS 0x10
 #define MSI_EC_COMMAND_LCD_LEVEL 0x11
+#define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e
+#define MSI_STANDARD_EC_BLUETOOTH_MASK  (1 << 0)
+#define MSI_STANDARD_EC_WEBCAM_MASK     (1 << 1)
+#define MSI_STANDARD_EC_WLAN_MASK       (1 << 3)
+#define MSI_STANDARD_EC_3G_MASK         (1 << 4)
+/* For set SCM load flag to disable BIOS fn key */
+#define MSI_STANDARD_EC_SCM_LOAD_ADDRESS        0x2d
+#define MSI_STANDARD_EC_SCM_LOAD_MASK           (1 << 0)
+static int msi_laptop_resume(struct platform_device *device);
+#define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS  0x2f
 static int force;
 module_param(force, bool, 0);
 MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
@@ -74,6 +89,23 @@ static int auto_brightness;
 module_param(auto_brightness, int, 0);
 MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
+static bool old_ec_model;
+static int wlan_s, bluetooth_s, threeg_s;
+static int threeg_exists;
+/* Some MSI 3G netbook only have one fn key to control Wlan/Bluetooth/3G,
+ * those netbook will load the SCM (windows app) to disable the original
+ * Wlan/Bluetooth control by BIOS when user press fn key, then control
+ * Wlan/Bluetooth/3G by SCM (software control by OS). Without SCM, user
+ * cann't on/off 3G module on those 3G netbook.
+ * On Linux, msi-laptop driver will do the same thing to disable the
+ * original BIOS control, then might need use HAL or other userland
+ * application to do the software control that simulate with SCM.
+ * e.g. MSI N034 netbook
+ */
+static bool load_scm_model;
+static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
 /* Hardware access */
 static int set_lcd_level(int level)
@@ -130,6 +162,35 @@ static int set_auto_brightness(int enable)
        return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2, NULL, 0, 1);
 }
+static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
+{
+        int status;
+        u8 wdata = 0, rdata;
+        int result;
+        if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
+                return -EINVAL;
+        /* read current device state */
+        result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
+        if (result < 0)
+                return -EINVAL;
+        if (!!(rdata & mask) != status) {
+                /* reverse device bit */
+                if (rdata & mask)
+                        wdata = rdata & ~mask;
+                else
+                        wdata = rdata | mask;
+                result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
+                if (result < 0)
+                        return -EINVAL;
+        }
+        return count;
+}
 static int get_wireless_state(int *wlan, int *bluetooth)
 {
        u8 wdata = 0, rdata;
@@ -148,6 +209,38 @@ static int get_wireless_state(int *wlan, int *bluetooth)
        return 0;
 }
+static int get_wireless_state_ec_standard(void)
+{
+        u8 rdata;
+        int result;
+        result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
+        if (result < 0)
+                return -1;
+        wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
+        bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
+        threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
+        return 0;
+}
+static int get_threeg_exists(void)
+{
+        u8 rdata;
+        int result;
+        result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
+        if (result < 0)
+                return -1;
+        threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
+        return 0;
+}
 /* Backlight device stuff */
 static int bl_get_brightness(struct backlight_device *b)
@@ -176,26 +269,71 @@ static ssize_t show_wlan(struct device *dev,
        int ret, enabled;
-        ret = get_wireless_state(&enabled, NULL);
+        if (old_ec_model) {
+                ret = get_wireless_state(&enabled, NULL);
+        } else {
+                ret = get_wireless_state_ec_standard();
+                enabled = wlan_s;
+        }
        if (ret < 0)
                return ret;
        return sprintf(buf, "%i\n", enabled);
 }
+static ssize_t store_wlan(struct device *dev,
+        struct device_attribute *attr, const char *buf, size_t count)
+{
+        return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
+}
 static ssize_t show_bluetooth(struct device *dev,
        struct device_attribute *attr, char *buf)
 {
        int ret, enabled;
-        ret = get_wireless_state(NULL, &enabled);
+        if (old_ec_model) {
+                ret = get_wireless_state(NULL, &enabled);
+        } else {
+                ret = get_wireless_state_ec_standard();
+                enabled = bluetooth_s;
+        }
        if (ret < 0)
                return ret;
        return sprintf(buf, "%i\n", enabled);
 }
+static ssize_t store_bluetooth(struct device *dev,
+        struct device_attribute *attr, const char *buf, size_t count)
+{
+        return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
+}
+static ssize_t show_threeg(struct device *dev,
+        struct device_attribute *attr, char *buf)
+{
+        int ret;
+        /* old msi ec not support 3G */
+        if (old_ec_model)
+                return -1;
+        ret = get_wireless_state_ec_standard();
+        if (ret < 0)
+                return ret;
+        return sprintf(buf, "%i\n", threeg_s);
+}
+static ssize_t store_threeg(struct device *dev,
+        struct device_attribute *attr, const char *buf, size_t count)
+{
+        return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
+}
 static ssize_t show_lcd_level(struct device *dev,
        struct device_attribute *attr, char *buf)
 {
@@ -258,6 +396,7 @@ static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness, store_auto_brightness);
 static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
 static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
+static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
 static struct attribute *msipf_attributes[] = {
        &dev_attr_lcd_level.attr,
@@ -275,7 +414,8 @@ static struct platform_driver msipf_driver = {
        .driver = {
                .name = "msi-laptop-pf",
                .owner = THIS_MODULE,
-        }
+        },
+        .resume = msi_laptop_resume,
 };
 static struct platform_device *msipf_device;
@@ -332,6 +472,192 @@ static struct dmi_system_id __initdata msi_dmi_table[] = {
        { }
 };
+static struct dmi_system_id __initdata msi_load_scm_models_dmi_table[] = {
+        {
+                .ident = "MSI N034",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR,
+                                "MICRO-STAR INTERNATIONAL CO., LTD"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
+                        DMI_MATCH(DMI_CHASSIS_VENDOR,
+                        "MICRO-STAR INTERNATIONAL CO., LTD")
+                },
+                .callback = dmi_check_cb
+        },
+        { }
+};
+static int rfkill_bluetooth_set(void *data, bool blocked)
+{
+        /* Do something with blocked...*/
+        /*
+         * blocked == false is on
+         * blocked == true is off
+         */
+        if (blocked)
+                set_device_state("0", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
+        else
+                set_device_state("1", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
+        return 0;
+}
+static int rfkill_wlan_set(void *data, bool blocked)
+{
+        if (blocked)
+                set_device_state("0", 0, MSI_STANDARD_EC_WLAN_MASK);
+        else
+                set_device_state("1", 0, MSI_STANDARD_EC_WLAN_MASK);
+        return 0;
+}
+static int rfkill_threeg_set(void *data, bool blocked)
+{
+        if (blocked)
+                set_device_state("0", 0, MSI_STANDARD_EC_3G_MASK);
+        else
+                set_device_state("1", 0, MSI_STANDARD_EC_3G_MASK);
+        return 0;
+}
+static struct rfkill_ops rfkill_bluetooth_ops = {
+        .set_block = rfkill_bluetooth_set
+};
+static struct rfkill_ops rfkill_wlan_ops = {
+        .set_block = rfkill_wlan_set
+};
+static struct rfkill_ops rfkill_threeg_ops = {
+        .set_block = rfkill_threeg_set
+};
+static void rfkill_cleanup(void)
+{
+        if (rfk_bluetooth) {
+                rfkill_unregister(rfk_bluetooth);
+                rfkill_destroy(rfk_bluetooth);
+        }
+        if (rfk_threeg) {
+                rfkill_unregister(rfk_threeg);
+                rfkill_destroy(rfk_threeg);
+        }
+        if (rfk_wlan) {
+                rfkill_unregister(rfk_wlan);
+                rfkill_destroy(rfk_wlan);
+        }
+}
+static int rfkill_init(struct platform_device *sdev)
+{
+        /* add rfkill */
+        int retval;
+        rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
+                                RFKILL_TYPE_BLUETOOTH,
+                                &rfkill_bluetooth_ops, NULL);
+        if (!rfk_bluetooth) {
+                retval = -ENOMEM;
+                goto err_bluetooth;
+        }
+        retval = rfkill_register(rfk_bluetooth);
+        if (retval)
+                goto err_bluetooth;
+        rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
+                                &rfkill_wlan_ops, NULL);
+        if (!rfk_wlan) {
+                retval = -ENOMEM;
+                goto err_wlan;
+        }
+        retval = rfkill_register(rfk_wlan);
+        if (retval)
+                goto err_wlan;
+        if (threeg_exists) {
+                rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
+                                RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
+                if (!rfk_threeg) {
+                        retval = -ENOMEM;
+                        goto err_threeg;
+                }
+                retval = rfkill_register(rfk_threeg);
+                if (retval)
+                        goto err_threeg;
+        }
+        return 0;
+err_threeg:
+        rfkill_destroy(rfk_threeg);
+        if (rfk_wlan)
+                rfkill_unregister(rfk_wlan);
+err_wlan:
+        rfkill_destroy(rfk_wlan);
+        if (rfk_bluetooth)
+                rfkill_unregister(rfk_bluetooth);
+err_bluetooth:
+        rfkill_destroy(rfk_bluetooth);
+        return retval;
+}
+static int msi_laptop_resume(struct platform_device *device)
+{
+        u8 data;
+        int result;
+        if (!load_scm_model)
+                return 0;
+        /* set load SCM to disable hardware control by fn key */
+        result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
+        if (result < 0)
+                return result;
+        result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
+                data | MSI_STANDARD_EC_SCM_LOAD_MASK);
+        if (result < 0)
+                return result;
+        return 0;
+}
+static int load_scm_model_init(struct platform_device *sdev)
+{
+        u8 data;
+        int result;
+        /* allow userland write sysfs file  */
+        dev_attr_bluetooth.store = store_bluetooth;
+        dev_attr_wlan.store = store_wlan;
+        dev_attr_threeg.store = store_threeg;
+        dev_attr_bluetooth.attr.mode |= S_IWUSR;
+        dev_attr_wlan.attr.mode |= S_IWUSR;
+        dev_attr_threeg.attr.mode |= S_IWUSR;
+        /* disable hardware control by fn key */
+        result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
+        if (result < 0)
+                return result;
+        result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
+                data | MSI_STANDARD_EC_SCM_LOAD_MASK);
+        if (result < 0)
+                return result;
+        /* initial rfkill */
+        result = rfkill_init(sdev);
+        if (result < 0)
+                return result;
+        return 0;
+}
 static int __init msi_init(void)
 {
        int ret;
@@ -339,8 +665,14 @@ static int __init msi_init(void)
        if (acpi_disabled)
                return -ENODEV;
-        if (!force && !dmi_check_system(msi_dmi_table))
+        if (force || dmi_check_system(msi_dmi_table))
-                return -ENODEV;
+                old_ec_model = 1;
+        if (!old_ec_model)
+                get_threeg_exists();
+        if (!old_ec_model && dmi_check_system(msi_load_scm_models_dmi_table))
+                load_scm_model = 1;
        if (auto_brightness < 0 || auto_brightness > 2)
                return -EINVAL;
@@ -374,10 +706,23 @@ static int __init msi_init(void)
        if (ret)
                goto fail_platform_device1;
+        if (load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
+                ret = -EINVAL;
+                goto fail_platform_device1;
+        }
        ret = sysfs_create_group(&msipf_device->dev.kobj, &msipf_attribute_group);
        if (ret)
                goto fail_platform_device2;
+        if (!old_ec_model) {
+                if (threeg_exists)
+                        ret = device_create_file(&msipf_device->dev,
+                                                &dev_attr_threeg);
+                if (ret)
+                        goto fail_platform_device2;
+        }
        /* Disable automatic brightness control by default because
         * this module was probably loaded to do brightness control in
         * software. */
@@ -412,10 +757,14 @@ static void __exit msi_cleanup(void)
 {
        sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
+        if (!old_ec_model && threeg_exists)
+                device_remove_file(&msipf_device->dev, &dev_attr_threeg);
        platform_device_unregister(msipf_device);
        platform_driver_unregister(&msipf_driver);
        backlight_device_unregister(msibl_device);
+        rfkill_cleanup();
        /* Enable automatic brightness control again */
        if (auto_brightness != 2)
                set_auto_brightness(1);
@@ -435,3 +784,4 @@ MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARIN
 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
 MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
+MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 4951aa82e9f5..bbea90baf98f 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -26,6 +26,7 @@
 #include <asm/ebcdic.h>
 #include <asm/idals.h>
 #include <asm/itcw.h>
+#include <asm/diag.h>
 /* This is ugly... */
 #define PRINTK_HEADER "dasd:"
@@ -2212,6 +2213,13 @@ static int dasd_open(struct block_device *bdev, fmode_t mode)
                goto out;
        }
+        if ((mode & FMODE_WRITE) &&
+            (test_bit(DASD_FLAG_DEVICE_RO, &base->flags) ||
+             (base->features & DASD_FEATURE_READONLY))) {
+                rc = -EROFS;
+                goto out;
+        }
        return 0;
 out:
@@ -2289,6 +2297,34 @@ dasd_exit(void)
 * SECTION: common functions for ccw_driver use
 */
+/*
+ * Is the device read-only?
+ * Note that this function does not report the setting of the
+ * readonly device attribute, but how it is configured in z/VM.
+ */
+int dasd_device_is_ro(struct dasd_device *device)
+{
+        struct ccw_dev_id dev_id;
+        struct diag210 diag_data;
+        int rc;
+        if (!MACHINE_IS_VM)
+                return 0;
+        ccw_device_get_id(device->cdev, &dev_id);
+        memset(&diag_data, 0, sizeof(diag_data));
+        diag_data.vrdcdvno = dev_id.devno;
+        diag_data.vrdclen = sizeof(diag_data);
+        rc = diag210(&diag_data);
+        if (rc == 0 || rc == 2) {
+                return diag_data.vrdcvfla & 0x80;
+        } else {
+                DBF_EVENT(DBF_WARNING, "diag210 failed for dev=%04x with rc=%d",
+                          dev_id.devno, rc);
+                return 0;
+        }
+}
+EXPORT_SYMBOL_GPL(dasd_device_is_ro);
 static void dasd_generic_auto_online(void *data, async_cookie_t cookie)
 {
        struct ccw_device *cdev = data;
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index 44796ba4eb9b..51224f76b980 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -1045,6 +1045,10 @@ dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense)
                erp->retries = 5;
+        } else if (sense[1] & SNS1_WRITE_INHIBITED) {
+                dev_err(&device->cdev->dev, "An I/O request was rejected"
+                        " because writing is inhibited\n");
+                erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
        } else {
                /* fatal error -  set status to FAILED
                   internal error 09 - Command Reject */
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index d49766f3b940..8e23919c8704 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -742,6 +742,7 @@ dasd_ro_store(struct device *dev, struct device_attribute *attr,
              const char *buf, size_t count)
 {
        struct dasd_devmap *devmap;
+        struct dasd_device *device;
        int val;
        char *endp;
@@ -758,12 +759,14 @@ dasd_ro_store(struct device *dev, struct device_attribute *attr,
                devmap->features |= DASD_FEATURE_READONLY;
        else
                devmap->features &= ~DASD_FEATURE_READONLY;
-        if (devmap->device)
+        device = devmap->device;
-                devmap->device->features = devmap->features;
+        if (device) {
-        if (devmap->device && devmap->device->block
+                device->features = devmap->features;
-            && devmap->device->block->gdp)
+                val = val || test_bit(DASD_FLAG_DEVICE_RO, &device->flags);
-                set_disk_ro(devmap->device->block->gdp, val);
+        }
        spin_unlock(&dasd_devmap_lock);
+        if (device && device->block && device->block->gdp)
+                set_disk_ro(device->block->gdp, val);
        return count;
 }
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 6e14863f5c70..687f323cdc38 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -145,12 +145,10 @@ dasd_diag_erp(struct dasd_device *device)
        mdsk_term_io(device);
        rc = mdsk_init_io(device, device->block->bp_block, 0, NULL);
        if (rc == 4) {
-                if (!(device->features & DASD_FEATURE_READONLY)) {
+                if (!(test_and_set_bit(DASD_FLAG_DEVICE_RO, &device->flags)))
                        pr_warning("%s: The access mode of a DIAG device "
                                   "changed to read-only\n",
                                   dev_name(&device->cdev->dev));
-                        device->features |= DASD_FEATURE_READONLY;
-                }
                rc = 0;
        }
        if (rc)
@@ -449,7 +447,7 @@ dasd_diag_check_device(struct dasd_device *device)
                rc = -EIO;
        } else {
                if (rc == 4)
-                        device->features |= DASD_FEATURE_READONLY;
+                        set_bit(DASD_FLAG_DEVICE_RO, &device->flags);
                pr_info("%s: New DASD with %ld byte/block, total size %ld "
                        "KB%s\n", dev_name(&device->cdev->dev),
                        (unsigned long) block->bp_block,
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 1cca21aafaba..01f4e7a34aa8 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -1089,6 +1089,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
        struct dasd_eckd_private *private;
        struct dasd_block *block;
        int is_known, rc;
+        int readonly;
        if (!ccw_device_is_pathgroup(device->cdev)) {
                dev_warn(&device->cdev->dev,
@@ -1182,15 +1183,20 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
        else
                private->real_cyl = private->rdc_data.no_cyl;
+        readonly = dasd_device_is_ro(device);
+        if (readonly)
+                set_bit(DASD_FLAG_DEVICE_RO, &device->flags);
        dev_info(&device->cdev->dev, "New DASD %04X/%02X (CU %04X/%02X) "
-                 "with %d cylinders, %d heads, %d sectors\n",
+                 "with %d cylinders, %d heads, %d sectors%s\n",
                 private->rdc_data.dev_type,
                 private->rdc_data.dev_model,
                 private->rdc_data.cu_type,
                 private->rdc_data.cu_model.model,
                 private->real_cyl,
                 private->rdc_data.trk_per_cyl,
-                 private->rdc_data.sec_per_trk);
+                 private->rdc_data.sec_per_trk,
+                 readonly ? ", read-only device" : "");
        return 0;
 out_err3:
@@ -2839,8 +2845,13 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
        char *psf_data, *rssd_result;
        struct dasd_ccw_req *cqr;
        struct ccw1 *ccw;
+        char psf0, psf1;
        int rc;
+        if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
+                return -EACCES;
+        psf0 = psf1 = 0;
        /* Copy parms from caller */
        rc = -EFAULT;
        if (copy_from_user(&usrparm, argp, sizeof(usrparm)))
@@ -2869,12 +2880,8 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
                           (void __user *)(unsigned long) usrparm.psf_data,
                           usrparm.psf_data_len))
                goto out_free;
+        psf0 = psf_data[0];
-        /* sanity check on syscall header */
+        psf1 = psf_data[1];
-        if (psf_data[0] != 0x17 && psf_data[1] != 0xce) {
-                rc = -EINVAL;
-                goto out_free;
-        }
        /* setup CCWs for PSF + RSSD */
        cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 2 , 0, device);
@@ -2925,7 +2932,9 @@ out_free:
        kfree(rssd_result);
        kfree(psf_data);
 out:
-        DBF_DEV_EVENT(DBF_WARNING, device, "Symmetrix ioctl: rc=%d", rc);
+        DBF_DEV_EVENT(DBF_WARNING, device,
+                      "Symmetrix ioctl (0x%02x 0x%02x): rc=%d",
+                      (int) psf0, (int) psf1, rc);
        return rc;
 }
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 0f152444ac77..37282b90eecc 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -124,6 +124,7 @@ dasd_fba_check_characteristics(struct dasd_device *device)
        struct dasd_fba_private *private;
        struct ccw_device *cdev = device->cdev;
        int rc;
+        int readonly;
        private = (struct dasd_fba_private *) device->private;
        if (!private) {
@@ -162,16 +163,21 @@ dasd_fba_check_characteristics(struct dasd_device *device)
                return rc;
        }
+        readonly = dasd_device_is_ro(device);
+        if (readonly)
+                set_bit(DASD_FLAG_DEVICE_RO, &device->flags);
        dev_info(&device->cdev->dev,
                 "New FBA DASD %04X/%02X (CU %04X/%02X) with %d MB "
-                 "and %d B/blk\n",
+                 "and %d B/blk%s\n",
                 cdev->id.dev_type,
                 cdev->id.dev_model,
                 cdev->id.cu_type,
                 cdev->id.cu_model,
                 ((private->rdc_data.blk_bdsa *
                   (private->rdc_data.blk_size >> 9)) >> 11),
-                 private->rdc_data.blk_size);
+                 private->rdc_data.blk_size,
+                 readonly ? ", read-only device" : "");
        return 0;
 }
diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index 94f92a1247f2..30a1ca3d08b7 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -70,7 +70,8 @@ int dasd_gendisk_alloc(struct dasd_block *block)
        }
        len += sprintf(gdp->disk_name + len, "%c", 'a'+(base->devindex%26));
-        if (block->base->features & DASD_FEATURE_READONLY)
+        if (base->features & DASD_FEATURE_READONLY ||
+            test_bit(DASD_FLAG_DEVICE_RO, &base->flags))
                set_disk_ro(gdp, 1);
        gdp->private_data = block;
        gdp->queue = block->request_queue;
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index ed73ce550822..a91d4a97d4f2 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -436,6 +436,10 @@ struct dasd_block {
 #define DASD_FLAG_OFFLINE       3       /* device is in offline processing */
 #define DASD_FLAG_EER_SNSS      4       /* A SNSS is required */
 #define DASD_FLAG_EER_IN_USE    5       /* A SNSS request is running */
+#define DASD_FLAG_DEVICE_RO     6       /* The device itself is read-only. Don't
+                                         * confuse this with the user specified
+                                         * read-only feature.
+                                         */
 void dasd_put_device_wake(struct dasd_device *);
@@ -609,6 +613,9 @@ char *dasd_get_sense(struct irb *);
 void dasd_device_set_stop_bits(struct dasd_device *, int);
 void dasd_device_remove_stop_bits(struct dasd_device *, int);
+int dasd_device_is_ro(struct dasd_device *);
 /* externals in dasd_devmap.c */
 extern int dasd_max_devindex;
 extern int dasd_probeonly;
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 7039d9cf0fb4..3479f8158a1b 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -199,7 +199,8 @@ dasd_ioctl_format(struct block_device *bdev, void __user *argp)
        if (!argp)
                return -EINVAL;
-        if (block->base->features & DASD_FEATURE_READONLY)
+        if (block->base->features & DASD_FEATURE_READONLY ||
+            test_bit(DASD_FLAG_DEVICE_RO, &block->base->flags))
                return -EROFS;
        if (copy_from_user(&fdata, argp, sizeof(struct format_data_t)))
                return -EFAULT;
@@ -349,7 +350,8 @@ dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp)
                return -EINVAL;
        if (get_user(intval, (int __user *)argp))
                return -EFAULT;
+        if (!intval && test_bit(DASD_FLAG_DEVICE_RO, &block->base->flags))
+                return -EROFS;
        set_disk_ro(bdev->bd_disk, intval);
        return dasd_set_feature(block->base->cdev, DASD_FEATURE_READONLY, intval);
 }
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index c6abb75c4615..6d229f3523a0 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -764,7 +764,7 @@ static void sch_create_and_recog_new_device(struct subchannel *sch)
 static void io_subchannel_register(struct ccw_device *cdev)
 {
        struct subchannel *sch;
-        int ret;
+        int ret, adjust_init_count = 1;
        unsigned long flags;
        sch = to_subchannel(cdev->dev.parent);
@@ -793,6 +793,7 @@ static void io_subchannel_register(struct ccw_device *cdev)
                                              cdev->private->dev_id.ssid,
                                              cdev->private->dev_id.devno);
                }
+                adjust_init_count = 0;
                goto out;
        }
        /*
@@ -818,7 +819,7 @@ out:
        cdev->private->flags.recog_done = 1;
        wake_up(&cdev->private->wait_q);
 out_err:
-        if (atomic_dec_and_test(&ccw_device_init_count))
+        if (adjust_init_count && atomic_dec_and_test(&ccw_device_init_count))
                wake_up(&ccw_device_init_wq);
 }
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index c94eb2a0fa2e..6ce83f56d537 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -33,7 +33,6 @@ void qdio_allocate_dbf(struct qdio_initialize *init_data,
        DBF_HEX(&init_data->input_handler, sizeof(void *));
        DBF_HEX(&init_data->output_handler, sizeof(void *));
        DBF_HEX(&init_data->int_parm, sizeof(long));
-        DBF_HEX(&init_data->flags, sizeof(long));
        DBF_HEX(&init_data->input_sbal_addr_array, sizeof(void *));
        DBF_HEX(&init_data->output_sbal_addr_array, sizeof(void *));
        DBF_EVENT("irq:%8lx", (unsigned long)irq_ptr);
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 232ef047ba34..4f8f74311778 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -588,10 +588,11 @@ static void qdio_kick_handler(struct qdio_q *q)
        if (q->is_input_q) {
                qperf_inc(q, inbound_handler);
                DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%02x c:%02x", start, count);
-        } else
+        } else {
                qperf_inc(q, outbound_handler);
                DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: s:%02x c:%02x",
                              start, count);
+        }
        q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count,
                   q->irq_ptr->int_parm);
diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig
index cb909a5b5047..977bb4d4ed15 100644
--- a/drivers/s390/net/Kconfig
+++ b/drivers/s390/net/Kconfig
@@ -43,6 +43,16 @@ config SMSGIUCV
          Select this option if you want to be able to receive SMSG messages
          from other VM guest systems.
+config SMSGIUCV_EVENT
+        tristate "Deliver IUCV special messages as uevents (VM only)"
+        depends on SMSGIUCV
+        help
+          Select this option to deliver CP special messages (SMSGs) as
+          uevents.  The driver handles only those special messages that
+          start with "APP".
+          To compile as a module, choose M. The module name is "smsgiucv_app".
 config CLAW
        tristate "CLAW device support"
        depends on CCW && NETDEVICES
diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile
index 6cab5a62f99e..4dfe8c1092da 100644
--- a/drivers/s390/net/Makefile
+++ b/drivers/s390/net/Makefile
@@ -6,6 +6,7 @@ ctcm-y += ctcm_main.o ctcm_fsms.o ctcm_mpc.o ctcm_sysfs.o ctcm_dbug.o
 obj-$(CONFIG_CTCM) += ctcm.o fsm.o
 obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o
 obj-$(CONFIG_SMSGIUCV) += smsgiucv.o
+obj-$(CONFIG_SMSGIUCV_EVENT) += smsgiucv_app.o
 obj-$(CONFIG_LCS) += lcs.o
 obj-$(CONFIG_CLAW) += claw.o
 qeth-y += qeth_core_sys.o qeth_core_main.o qeth_core_mpc.o
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index fa8a519218ac..7d25bdd443cd 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -3805,9 +3805,6 @@ static int qeth_qdio_establish(struct qeth_card *card)
        init_data.input_handler          = card->discipline.input_handler;
        init_data.output_handler         = card->discipline.output_handler;
        init_data.int_parm               = (unsigned long) card;
-        init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
-                                           QDIO_OUTBOUND_0COPY_SBALS |
-                                           QDIO_USE_OUTBOUND_PCIS;
        init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
        init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c
index 67f2485d2372..ecef1edee701 100644
--- a/drivers/s390/net/smsgiucv.c
+++ b/drivers/s390/net/smsgiucv.c
@@ -31,9 +31,9 @@
 struct smsg_callback {
        struct list_head list;
-        char *prefix;
+        const char *prefix;
        int len;
-        void (*callback)(char *from, char *str);
+        void (*callback)(const char *from, char *str);
 };
 MODULE_AUTHOR
@@ -100,8 +100,8 @@ static void smsg_message_pending(struct iucv_path *path,
        kfree(buffer);
 }
-int smsg_register_callback(char *prefix,
+int smsg_register_callback(const char *prefix,
-                           void (*callback)(char *from, char *str))
+                           void (*callback)(const char *from, char *str))
 {
        struct smsg_callback *cb;
@@ -117,8 +117,9 @@ int smsg_register_callback(char *prefix,
        return 0;
 }
-void smsg_unregister_callback(char *prefix,
+void smsg_unregister_callback(const char *prefix,
-                              void (*callback)(char *from, char *str))
+                              void (*callback)(const char *from,
+                                               char *str))
 {
        struct smsg_callback *cb, *tmp;
@@ -176,7 +177,7 @@ static const struct dev_pm_ops smsg_pm_ops = {
 static struct device_driver smsg_driver = {
        .owner = THIS_MODULE,
-        .name = "SMSGIUCV",
+        .name = SMSGIUCV_DRV_NAME,
        .bus  = &iucv_bus,
        .pm = &smsg_pm_ops,
 };
diff --git a/drivers/s390/net/smsgiucv.h b/drivers/s390/net/smsgiucv.h
index 67f5d4f8378d..149a1151608d 100644
--- a/drivers/s390/net/smsgiucv.h
+++ b/drivers/s390/net/smsgiucv.h
@@ -5,6 +5,10 @@
 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
 */
-int  smsg_register_callback(char *, void (*)(char *, char *));
+#define SMSGIUCV_DRV_NAME     "SMSGIUCV"
-void smsg_unregister_callback(char *, void (*)(char *, char *));
+int  smsg_register_callback(const char *,
+                            void (*)(const char *, char *));
+void smsg_unregister_callback(const char *,
+                              void (*)(const char *, char *));
diff --git a/drivers/s390/net/smsgiucv_app.c b/drivers/s390/net/smsgiucv_app.c
new file mode 100644
index 000000000000..91579dc6a2b0
--- /dev/null
+++ b/drivers/s390/net/smsgiucv_app.c
@@ -0,0 +1,211 @@
+/*
+ * Deliver z/VM CP special messages (SMSG) as uevents.
+ *
+ * The driver registers for z/VM CP special messages with the
+ * "APP" prefix. Incoming messages are delivered to user space
+ * as uevents.
+ *
+ * Copyright IBM Corp. 2010
+ * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ *
+ */
+#define KMSG_COMPONENT          "smsgiucv_app"
+#define pr_fmt(fmt)             KMSG_COMPONENT ": " fmt
+#include <linux/ctype.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/kobject.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <net/iucv/iucv.h>
+#include "smsgiucv.h"
+/* prefix used for SMSG registration */
+#define SMSG_PREFIX             "APP"
+/* SMSG related uevent environment variables */
+#define ENV_SENDER_STR          "SMSG_SENDER="
+#define ENV_SENDER_LEN          (strlen(ENV_SENDER_STR) + 8 + 1)
+#define ENV_PREFIX_STR          "SMSG_ID="
+#define ENV_PREFIX_LEN          (strlen(ENV_PREFIX_STR) + \
+                                 strlen(SMSG_PREFIX) + 1)
+#define ENV_TEXT_STR            "SMSG_TEXT="
+#define ENV_TEXT_LEN(msg)       (strlen(ENV_TEXT_STR) + strlen((msg)) + 1)
+/* z/VM user ID which is permitted to send SMSGs
+ * If the value is undefined or empty (""), special messages are
+ * accepted from any z/VM user ID. */
+static char *sender;
+module_param(sender, charp, 0400);
+MODULE_PARM_DESC(sender, "z/VM user ID from which CP SMSGs are accepted");
+/* SMSG device representation */
+static struct device *smsg_app_dev;
+/* list element for queuing received messages for delivery */
+struct smsg_app_event {
+        struct list_head list;
+        char *buf;
+        char *envp[4];
+};
+/* queue for outgoing uevents */
+static LIST_HEAD(smsg_event_queue);
+static DEFINE_SPINLOCK(smsg_event_queue_lock);
+static void smsg_app_event_free(struct smsg_app_event *ev)
+{
+        kfree(ev->buf);
+        kfree(ev);
+}
+static struct smsg_app_event *smsg_app_event_alloc(const char *from,
+                                                   const char *msg)
+{
+        struct smsg_app_event *ev;
+        ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
+        if (!ev)
+                return NULL;
+        ev->buf = kzalloc(ENV_SENDER_LEN + ENV_PREFIX_LEN +
+                          ENV_TEXT_LEN(msg), GFP_ATOMIC);
+        if (!ev->buf) {
+                kfree(ev);
+                return NULL;
+        }
+        /* setting up environment pointers into buf */
+        ev->envp[0] = ev->buf;
+        ev->envp[1] = ev->envp[0] + ENV_SENDER_LEN;
+        ev->envp[2] = ev->envp[1] + ENV_PREFIX_LEN;
+        ev->envp[3] = NULL;
+        /* setting up environment: sender, prefix name, and message text */
+        snprintf(ev->envp[0], ENV_SENDER_LEN, ENV_SENDER_STR "%s", from);
+        snprintf(ev->envp[1], ENV_PREFIX_LEN, ENV_PREFIX_STR "%s", SMSG_PREFIX);
+        snprintf(ev->envp[2], ENV_TEXT_LEN(msg), ENV_TEXT_STR "%s", msg);
+        return ev;
+}
+static void smsg_event_work_fn(struct work_struct *work)
+{
+        LIST_HEAD(event_queue);
+        struct smsg_app_event *p, *n;
+        struct device *dev;
+        dev = get_device(smsg_app_dev);
+        if (!dev)
+                return;
+        spin_lock_bh(&smsg_event_queue_lock);
+        list_splice_init(&smsg_event_queue, &event_queue);
+        spin_unlock_bh(&smsg_event_queue_lock);
+        list_for_each_entry_safe(p, n, &event_queue, list) {
+                list_del(&p->list);
+                kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, p->envp);
+                smsg_app_event_free(p);
+        }
+        put_device(dev);
+}
+static DECLARE_WORK(smsg_event_work, smsg_event_work_fn);
+static void smsg_app_callback(const char *from, char *msg)
+{
+        struct smsg_app_event *se;
+        /* check if the originating z/VM user ID matches
+         * the configured sender. */
+        if (sender && strlen(sender) > 0 && strcmp(from, sender) != 0)
+                return;
+        /* get start of message text (skip prefix and leading blanks) */
+        msg += strlen(SMSG_PREFIX);
+        while (*msg && isspace(*msg))
+                msg++;
+        if (*msg == '\0')
+                return;
+        /* allocate event list element and its environment */
+        se = smsg_app_event_alloc(from, msg);
+        if (!se)
+                return;
+        /* queue event and schedule work function */
+        spin_lock(&smsg_event_queue_lock);
+        list_add_tail(&se->list, &smsg_event_queue);
+        spin_unlock(&smsg_event_queue_lock);
+        schedule_work(&smsg_event_work);
+        return;
+}
+static int __init smsgiucv_app_init(void)
+{
+        struct device_driver *smsgiucv_drv;
+        int rc;
+        if (!MACHINE_IS_VM)
+                return -ENODEV;
+        smsg_app_dev = kzalloc(sizeof(*smsg_app_dev), GFP_KERNEL);
+        if (!smsg_app_dev)
+                return -ENOMEM;
+        smsgiucv_drv = driver_find(SMSGIUCV_DRV_NAME, &iucv_bus);
+        if (!smsgiucv_drv) {
+                kfree(smsg_app_dev);
+                return -ENODEV;
+        }
+        rc = dev_set_name(smsg_app_dev, KMSG_COMPONENT);
+        if (rc) {
+                kfree(smsg_app_dev);
+                goto fail_put_driver;
+        }
+        smsg_app_dev->bus = &iucv_bus;
+        smsg_app_dev->parent = iucv_root;
+        smsg_app_dev->release = (void (*)(struct device *)) kfree;
+        smsg_app_dev->driver = smsgiucv_drv;
+        rc = device_register(smsg_app_dev);
+        if (rc) {
+                put_device(smsg_app_dev);
+                goto fail_put_driver;
+        }
+        /* register with the smsgiucv device driver */
+        rc = smsg_register_callback(SMSG_PREFIX, smsg_app_callback);
+        if (rc) {
+                device_unregister(smsg_app_dev);
+                goto fail_put_driver;
+        }
+        rc = 0;
+fail_put_driver:
+        put_driver(smsgiucv_drv);
+        return rc;
+}
+module_init(smsgiucv_app_init);
+static void __exit smsgiucv_app_exit(void)
+{
+        /* unregister callback */
+        smsg_unregister_callback(SMSG_PREFIX, smsg_app_callback);
+        /* cancel pending work and flush any queued event work */
+        cancel_work_sync(&smsg_event_work);
+        smsg_event_work_fn(&smsg_event_work);
+        device_unregister(smsg_app_dev);
+}
+module_exit(smsgiucv_app_exit);
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Deliver z/VM CP SMSG as uevents");
+MODULE_AUTHOR("Hendrik Brueckner <brueckner@linux.vnet.ibm.com>");
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 71b97ff77cf0..6479273a3094 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -319,8 +319,6 @@ static void zfcp_qdio_setup_init_data(struct qdio_initialize *id,
        id->input_handler = zfcp_qdio_int_resp;
        id->output_handler = zfcp_qdio_int_req;
        id->int_parm = (unsigned long) qdio;
-        id->flags = QDIO_INBOUND_0COPY_SBALS |
-                    QDIO_OUTBOUND_0COPY_SBALS | QDIO_USE_OUTBOUND_PCIS;
        id->input_sbal_addr_array = (void **) (qdio->resp_q.sbal);
        id->output_sbal_addr_array = (void **) (qdio->req_q.sbal);
diff --git a/drivers/scsi/sgiwd93.c b/drivers/scsi/sgiwd93.c
index 0807b260268b..fef0e3c75b16 100644
--- a/drivers/scsi/sgiwd93.c
+++ b/drivers/scsi/sgiwd93.c
@@ -226,7 +226,7 @@ static struct scsi_host_template sgiwd93_template = {
        .use_clustering         = DISABLE_CLUSTERING,
 };
-static int __init sgiwd93_probe(struct platform_device *pdev)
+static int __devinit sgiwd93_probe(struct platform_device *pdev)
 {
        struct sgiwd93_platform_data *pd = pdev->dev.platform_data;
        unsigned char *wdregs = pd->wdregs;
diff --git a/drivers/scsi/sni_53c710.c b/drivers/scsi/sni_53c710.c
index 37b3359e863e..56cf0bb4ed1f 100644
--- a/drivers/scsi/sni_53c710.c
+++ b/drivers/scsi/sni_53c710.c
@@ -64,7 +64,7 @@ static struct scsi_host_template snirm710_template = {
        .module         = THIS_MODULE,
 };
-static int __init snirm710_probe(struct platform_device *dev)
+static int __devinit snirm710_probe(struct platform_device *dev)
 {
        unsigned long base;
        struct NCR_700_Host_Parameters *hostdata;
diff --git a/drivers/staging/asus_oled/asus_oled.c b/drivers/staging/asus_oled/asus_oled.c
index cadb6f7321ad..7ebecc92c61b 100644
--- a/drivers/staging/asus_oled/asus_oled.c
+++ b/drivers/staging/asus_oled/asus_oled.c
@@ -770,13 +770,8 @@ static struct usb_driver oled_driver = {
        .id_table =     id_table,
 };
-static ssize_t version_show(struct class *dev, char *buf)
+static CLASS_ATTR_STRING(version, S_IRUGO,
-{
+                        ASUS_OLED_UNDERSCORE_NAME " " ASUS_OLED_VERSION);
-        return sprintf(buf, ASUS_OLED_UNDERSCORE_NAME " %s\n",
-                       ASUS_OLED_VERSION);
-}
-static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
 static int __init asus_oled_init(void)
 {
@@ -788,7 +783,7 @@ static int __init asus_oled_init(void)
                return PTR_ERR(oled_class);
        }
-        retval = class_create_file(oled_class, &class_attr_version);
+        retval = class_create_file(oled_class, &class_attr_version.attr);
        if (retval) {
                err("Error creating class version file");
                goto error;
@@ -810,7 +805,7 @@ error:
 static void __exit asus_oled_exit(void)
 {
-        class_remove_file(oled_class, &class_attr_version);
+        class_remove_file(oled_class, &class_attr_version.attr);
        class_destroy(oled_class);
        usb_deregister(&oled_driver);
diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig
index 8aa1955f35ed..1da73ecd9799 100644
--- a/drivers/uio/Kconfig
+++ b/drivers/uio/Kconfig
@@ -44,17 +44,6 @@ config UIO_PDRV_GENIRQ
          If you don't know what to do here, say N.
-config UIO_SMX
-        tristate "SMX cryptengine UIO interface"
-        help
-          Userspace IO interface to the Cryptography engine found on the
-          Nias Digital SMX boards.  These will be available from Q4 2008
-          from http://www.niasdigital.com.  The userspace part of this
-          driver will be released under the GPL at the same time as the
-          hardware and will be able to be downloaded from the same site.
-          If you compile this as a module, it will be called uio_smx.
 config UIO_AEC
        tristate "AEC video timestamp device"
        depends on PCI
@@ -74,6 +63,7 @@ config UIO_AEC
 config UIO_SERCOS3
        tristate "Automata Sercos III PCI card driver"
+        depends on PCI
        help
          Userspace I/O interface for the Sercos III PCI card from
          Automata GmbH. The userspace part of this driver will be
@@ -87,11 +77,21 @@ config UIO_SERCOS3
 config UIO_PCI_GENERIC
        tristate "Generic driver for PCI 2.3 and PCI Express cards"
        depends on PCI
-        default n
        help
          Generic driver that you can bind, dynamically, to any
          PCI 2.3 compliant and PCI Express card. It is useful,
          primarily, for virtualization scenarios.
          If you compile this as a module, it will be called uio_pci_generic.
+config UIO_NETX
+        tristate "Hilscher NetX Card driver"
+        depends on PCI
+        help
+          Driver for Hilscher NetX based fieldbus cards (cifX, comX).
+          This driver requires a userspace component that comes with the card
+          or is available from Hilscher (http://www.hilscher.com).
+          To compile this driver as a module, choose M here; the module
+          will be called uio_netx.
 endif
diff --git a/drivers/uio/Makefile b/drivers/uio/Makefile
index 73b2e7516729..18fd818c5b97 100644
--- a/drivers/uio/Makefile
+++ b/drivers/uio/Makefile
@@ -2,7 +2,7 @@ obj-$(CONFIG_UIO)	+= uio.o
 obj-$(CONFIG_UIO_CIF)   += uio_cif.o
 obj-$(CONFIG_UIO_PDRV)  += uio_pdrv.o
 obj-$(CONFIG_UIO_PDRV_GENIRQ)   += uio_pdrv_genirq.o
-obj-$(CONFIG_UIO_SMX)   += uio_smx.o
 obj-$(CONFIG_UIO_AEC)   += uio_aec.o
 obj-$(CONFIG_UIO_SERCOS3)       += uio_sercos3.o
 obj-$(CONFIG_UIO_PCI_GENERIC)   += uio_pci_generic.o
+obj-$(CONFIG_UIO_NETX)  += uio_netx.o
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index e941367dd28f..4de382acd8f2 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -129,7 +129,7 @@ static ssize_t map_type_show(struct kobject *kobj, struct attribute *attr,
        return entry->show(mem, buf);
 }
-static struct sysfs_ops map_sysfs_ops = {
+static const struct sysfs_ops map_sysfs_ops = {
        .show = map_type_show,
 };
@@ -217,7 +217,7 @@ static ssize_t portio_type_show(struct kobject *kobj, struct attribute *attr,
        return entry->show(port, buf);
 }
-static struct sysfs_ops portio_sysfs_ops = {
+static const struct sysfs_ops portio_sysfs_ops = {
        .show = portio_type_show,
 };
diff --git a/drivers/uio/uio_netx.c b/drivers/uio/uio_netx.c
new file mode 100644
index 000000000000..afbf0bd55cc9
--- /dev/null
+++ b/drivers/uio/uio_netx.c
@@ -0,0 +1,172 @@
+/*
+ * UIO driver for Hilscher NetX based fieldbus cards (cifX, comX).
+ * See http://www.hilscher.com for details.
+ *
+ * (C) 2007 Hans J. Koch <hjk@linutronix.de>
+ * (C) 2008 Manuel Traut <manut@linutronix.de>
+ *
+ * Licensed under GPL version 2 only.
+ *
+ */
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/uio_driver.h>
+#define PCI_VENDOR_ID_HILSCHER          0x15CF
+#define PCI_DEVICE_ID_HILSCHER_NETX     0x0000
+#define PCI_SUBDEVICE_ID_NXSB_PCA       0x3235
+#define PCI_SUBDEVICE_ID_NXPCA          0x3335
+#define DPM_HOST_INT_EN0        0xfff0
+#define DPM_HOST_INT_STAT0      0xffe0
+#define DPM_HOST_INT_MASK       0xe600ffff
+#define DPM_HOST_INT_GLOBAL_EN  0x80000000
+static irqreturn_t netx_handler(int irq, struct uio_info *dev_info)
+{
+        void __iomem *int_enable_reg = dev_info->mem[0].internal_addr
+                                        + DPM_HOST_INT_EN0;
+        void __iomem *int_status_reg = dev_info->mem[0].internal_addr
+                                        + DPM_HOST_INT_STAT0;
+        /* Is one of our interrupts enabled and active ? */
+        if (!(ioread32(int_enable_reg) & ioread32(int_status_reg)
+                & DPM_HOST_INT_MASK))
+                return IRQ_NONE;
+        /* Disable interrupt */
+        iowrite32(ioread32(int_enable_reg) & ~DPM_HOST_INT_GLOBAL_EN,
+                int_enable_reg);
+        return IRQ_HANDLED;
+}
+static int __devinit netx_pci_probe(struct pci_dev *dev,
+                                        const struct pci_device_id *id)
+{
+        struct uio_info *info;
+        int bar;
+        info = kzalloc(sizeof(struct uio_info), GFP_KERNEL);
+        if (!info)
+                return -ENOMEM;
+        if (pci_enable_device(dev))
+                goto out_free;
+        if (pci_request_regions(dev, "netx"))
+                goto out_disable;
+        switch (id->device) {
+        case PCI_DEVICE_ID_HILSCHER_NETX:
+                bar = 0;
+                info->name = "netx";
+                break;
+        default:
+                bar = 2;
+                info->name = "netx_plx";
+        }
+        /* BAR0 or 2 points to the card's dual port memory */
+        info->mem[0].addr = pci_resource_start(dev, bar);
+        if (!info->mem[0].addr)
+                goto out_release;
+        info->mem[0].internal_addr = ioremap(pci_resource_start(dev, bar),
+                                                pci_resource_len(dev, bar));
+        if (!info->mem[0].internal_addr)
+                        goto out_release;
+        info->mem[0].size = pci_resource_len(dev, bar);
+        info->mem[0].memtype = UIO_MEM_PHYS;
+        info->irq = dev->irq;
+        info->irq_flags = IRQF_SHARED;
+        info->handler = netx_handler;
+        info->version = "0.0.1";
+        /* Make sure all interrupts are disabled */
+        iowrite32(0, info->mem[0].internal_addr + DPM_HOST_INT_EN0);
+        if (uio_register_device(&dev->dev, info))
+                goto out_unmap;
+        pci_set_drvdata(dev, info);
+        dev_info(&dev->dev, "Found %s card, registered UIO device.\n",
+                                info->name);
+        return 0;
+out_unmap:
+        iounmap(info->mem[0].internal_addr);
+out_release:
+        pci_release_regions(dev);
+out_disable:
+        pci_disable_device(dev);
+out_free:
+        kfree(info);
+        return -ENODEV;
+}
+static void netx_pci_remove(struct pci_dev *dev)
+{
+        struct uio_info *info = pci_get_drvdata(dev);
+        /* Disable all interrupts */
+        iowrite32(0, info->mem[0].internal_addr + DPM_HOST_INT_EN0);
+        uio_unregister_device(info);
+        pci_release_regions(dev);
+        pci_disable_device(dev);
+        pci_set_drvdata(dev, NULL);
+        iounmap(info->mem[0].internal_addr);
+        kfree(info);
+}
+static struct pci_device_id netx_pci_ids[] = {
+        {
+                .vendor =       PCI_VENDOR_ID_HILSCHER,
+                .device =       PCI_DEVICE_ID_HILSCHER_NETX,
+                .subvendor =    0,
+                .subdevice =    0,
+        },
+        {
+                .vendor =       PCI_VENDOR_ID_PLX,
+                .device =       PCI_DEVICE_ID_PLX_9030,
+                .subvendor =    PCI_VENDOR_ID_PLX,
+                .subdevice =    PCI_SUBDEVICE_ID_NXSB_PCA,
+        },
+        {
+                .vendor =       PCI_VENDOR_ID_PLX,
+                .device =       PCI_DEVICE_ID_PLX_9030,
+                .subvendor =    PCI_VENDOR_ID_PLX,
+                .subdevice =    PCI_SUBDEVICE_ID_NXPCA,
+        },
+        { 0, }
+};
+static struct pci_driver netx_pci_driver = {
+        .name = "netx",
+        .id_table = netx_pci_ids,
+        .probe = netx_pci_probe,
+        .remove = netx_pci_remove,
+};
+static int __init netx_init_module(void)
+{
+        return pci_register_driver(&netx_pci_driver);
+}
+static void __exit netx_exit_module(void)
+{
+        pci_unregister_driver(&netx_pci_driver);
+}
+module_init(netx_init_module);
+module_exit(netx_exit_module);
+MODULE_DEVICE_TABLE(pci, netx_pci_ids);
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Hans J. Koch, Manuel Traut");
diff --git a/drivers/uio/uio_smx.c b/drivers/uio/uio_smx.c
deleted file mode 100644
index 44054a650a8a..000000000000
--- a/drivers/uio/uio_smx.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * UIO SMX Cryptengine driver.
- *
- * (C) 2008 Nias Digital P/L <bn@niasdigital.com>
- *
- * 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/device.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/uio_driver.h>
-#include <linux/io.h>
-#define DRV_NAME "smx-ce"
-#define DRV_VERSION "0.03"
-#define SMX_CSR  0x00000000
-#define SMX_EnD  0x00000001
-#define SMX_RUN  0x00000002
-#define SMX_DRDY 0x00000004
-#define SMX_ERR  0x00000008
-static irqreturn_t smx_handler(int irq, struct uio_info *dev_info)
-{
-        void __iomem *csr = dev_info->mem[0].internal_addr + SMX_CSR;
-        u32 status = ioread32(csr);
-        if (!(status & SMX_DRDY))
-                return IRQ_NONE;
-        /* Disable interrupt */
-        iowrite32(status & ~SMX_DRDY, csr);
-        return IRQ_HANDLED;
-}
-static int __devinit smx_ce_probe(struct platform_device *dev)
-{
-        int ret = -ENODEV;
-        struct uio_info *info;
-        struct resource *regs;
-        info = kzalloc(sizeof(struct uio_info), GFP_KERNEL);
-        if (!info)
-                return -ENOMEM;
-        regs = platform_get_resource(dev, IORESOURCE_MEM, 0);
-        if (!regs) {
-                dev_err(&dev->dev, "No memory resource specified\n");
-                goto out_free;
-        }
-        info->mem[0].addr = regs->start;
-        if (!info->mem[0].addr) {
-                dev_err(&dev->dev, "Invalid memory resource\n");
-                goto out_free;
-        }
-        info->mem[0].size = regs->end - regs->start + 1;
-        info->mem[0].internal_addr = ioremap(regs->start, info->mem[0].size);
-        if (!info->mem[0].internal_addr) {
-                dev_err(&dev->dev, "Can't remap memory address range\n");
-                goto out_free;
-        }
-        info->mem[0].memtype = UIO_MEM_PHYS;
-        info->name = "smx-ce";
-        info->version = "0.03";
-        info->irq = platform_get_irq(dev, 0);
-        if (info->irq < 0) {
-                ret = info->irq;
-                dev_err(&dev->dev, "No (or invalid) IRQ resource specified\n");
-                goto out_unmap;
-        }
-        info->irq_flags = IRQF_SHARED;
-        info->handler = smx_handler;
-        platform_set_drvdata(dev, info);
-        ret = uio_register_device(&dev->dev, info);
-        if (ret)
-                goto out_unmap;
-        return 0;
-out_unmap:
-        iounmap(info->mem[0].internal_addr);
-out_free:
-        kfree(info);
-        return ret;
-}
-static int __devexit smx_ce_remove(struct platform_device *dev)
-{
-        struct uio_info *info = platform_get_drvdata(dev);
-        uio_unregister_device(info);
-        platform_set_drvdata(dev, NULL);
-        iounmap(info->mem[0].internal_addr);
-        kfree(info);
-        return 0;
-}
-static struct platform_driver smx_ce_driver = {
-        .probe          = smx_ce_probe,
-        .remove         = __devexit_p(smx_ce_remove),
-        .driver         = {
-                .name   = DRV_NAME,
-                .owner  = THIS_MODULE,
-        },
-};
-static int __init smx_ce_init_module(void)
-{
-        return platform_driver_register(&smx_ce_driver);
-}
-module_init(smx_ce_init_module);
-static void __exit smx_ce_exit_module(void)
-{
-        platform_driver_unregister(&smx_ce_driver);
-}
-module_exit(smx_ce_exit_module);
-MODULE_LICENSE("GPL v2");
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR("Ben Nizette <bn@niasdigital.com>");
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index a7037bf81688..f3c233806fa3 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -489,10 +489,10 @@ void usb_driver_release_interface(struct usb_driver *driver,
        if (device_is_registered(dev)) {
                device_release_driver(dev);
        } else {
-                down(&dev->sem);
+                device_lock(dev);
                usb_unbind_interface(dev);
                dev->driver = NULL;
-                up(&dev->sem);
+                device_unlock(dev);
        }
 }
 EXPORT_SYMBOL_GPL(usb_driver_release_interface);
diff --git a/drivers/uwb/driver.c b/drivers/uwb/driver.c
index da77e41de990..08bd6dbfd4a6 100644
--- a/drivers/uwb/driver.c
+++ b/drivers/uwb/driver.c
@@ -74,13 +74,16 @@
 unsigned long beacon_timeout_ms = 500;
 static
-ssize_t beacon_timeout_ms_show(struct class *class, char *buf)
+ssize_t beacon_timeout_ms_show(struct class *class,
+                                struct class_attribute *attr,
+                                char *buf)
 {
        return scnprintf(buf, PAGE_SIZE, "%lu\n", beacon_timeout_ms);
 }
 static
 ssize_t beacon_timeout_ms_store(struct class *class,
+                                struct class_attribute *attr,
                                const char *buf, size_t size)
 {
        unsigned long bt;
diff --git a/drivers/uwb/umc-bus.c b/drivers/uwb/umc-bus.c
index cdd6c8efc9f8..5fad4e791b3e 100644
--- a/drivers/uwb/umc-bus.c
+++ b/drivers/uwb/umc-bus.c
@@ -62,12 +62,12 @@ int umc_controller_reset(struct umc_dev *umc)
        struct device *parent = umc->dev.parent;
        int ret = 0;
-        if(down_trylock(&parent->sem))
+        if (device_trylock(parent))
                return -EAGAIN;
        ret = device_for_each_child(parent, parent, umc_bus_pre_reset_helper);
        if (ret >= 0)
                ret = device_for_each_child(parent, parent, umc_bus_post_reset_helper);
-        up(&parent->sem);
+        device_unlock(parent);
        return ret;
 }
diff --git a/drivers/uwb/uwb-internal.h b/drivers/uwb/uwb-internal.h
index d5bcfc1c227a..157485c862c0 100644
--- a/drivers/uwb/uwb-internal.h
+++ b/drivers/uwb/uwb-internal.h
@@ -366,12 +366,12 @@ struct dentry *uwb_dbg_create_pal_dir(struct uwb_pal *pal);
 static inline void uwb_dev_lock(struct uwb_dev *uwb_dev)
 {
-        down(&uwb_dev->dev.sem);
+        device_lock(&uwb_dev->dev);
 }
 static inline void uwb_dev_unlock(struct uwb_dev *uwb_dev)
 {
-        up(&uwb_dev->dev.sem);
+        device_unlock(&uwb_dev->dev);
 }
 #endif /* #ifndef __UWB_INTERNAL_H__ */
diff --git a/drivers/uwb/wlp/sysfs.c b/drivers/uwb/wlp/sysfs.c
index 0370399ff4bb..6627c94cc854 100644
--- a/drivers/uwb/wlp/sysfs.c
+++ b/drivers/uwb/wlp/sysfs.c
@@ -615,8 +615,7 @@ ssize_t wlp_wss_attr_store(struct kobject *kobj, struct attribute *attr,
        return ret;
 }
-static
+static const struct sysfs_ops wss_sysfs_ops = {
-struct sysfs_ops wss_sysfs_ops = {
        .show   = wlp_wss_attr_show,
        .store  = wlp_wss_attr_store,
 };
diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c
index 0bcc59eb37fa..43d7d5067361 100644
--- a/drivers/video/acornfb.c
+++ b/drivers/video/acornfb.c
@@ -1221,7 +1221,7 @@ free_unused_pages(unsigned int virtual_start, unsigned int virtual_end)
        printk("acornfb: freed %dK memory\n", mb_freed);
 }
-static int __init acornfb_probe(struct platform_device *dev)
+static int __devinit acornfb_probe(struct platform_device *dev)
 {
        unsigned long size;
        u_int h_sync, v_sync;
diff --git a/drivers/video/arcfb.c b/drivers/video/arcfb.c
index c3431691c9f2..01554d696528 100644
--- a/drivers/video/arcfb.c
+++ b/drivers/video/arcfb.c
@@ -504,7 +504,7 @@ static struct fb_ops arcfb_ops = {
        .fb_ioctl       = arcfb_ioctl,
 };
-static int __init arcfb_probe(struct platform_device *dev)
+static int __devinit arcfb_probe(struct platform_device *dev)
 {
        struct fb_info *info;
        int retval = -ENOMEM;
diff --git a/drivers/video/cobalt_lcdfb.c b/drivers/video/cobalt_lcdfb.c
index 108b89e09a80..5eb61b5adfe8 100644
--- a/drivers/video/cobalt_lcdfb.c
+++ b/drivers/video/cobalt_lcdfb.c
@@ -287,7 +287,7 @@ static struct fb_ops cobalt_lcd_fbops = {
        .fb_cursor      = cobalt_lcdfb_cursor,
 };
-static int __init cobalt_lcdfb_probe(struct platform_device *dev)
+static int __devinit cobalt_lcdfb_probe(struct platform_device *dev)
 {
        struct fb_info *info;
        struct resource *res;
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index d25df51bb0d2..581d2dbf675a 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -210,7 +210,7 @@ static int __init efifb_setup(char *options)
        return 0;
 }
-static int __init efifb_probe(struct platform_device *dev)
+static int __devinit efifb_probe(struct platform_device *dev)
 {
        struct fb_info *info;
        int err;
diff --git a/drivers/video/epson1355fb.c b/drivers/video/epson1355fb.c
index 2735b79e52a1..6d755bb3a2bc 100644
--- a/drivers/video/epson1355fb.c
+++ b/drivers/video/epson1355fb.c
@@ -602,7 +602,7 @@ static int epson1355fb_remove(struct platform_device *dev)
        return 0;
 }
-int __init epson1355fb_probe(struct platform_device *dev)
+int __devinit epson1355fb_probe(struct platform_device *dev)
 {
        struct epson1355_par *default_par;
        struct fb_info *info;
diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c
index 695fa013fe7e..5643a35c1746 100644
--- a/drivers/video/gbefb.c
+++ b/drivers/video/gbefb.c
@@ -1128,7 +1128,7 @@ static int __init gbefb_setup(char *options)
        return 0;
 }
-static int __init gbefb_probe(struct platform_device *p_dev)
+static int __devinit gbefb_probe(struct platform_device *p_dev)
 {
        int i, ret = 0;
        struct fb_info *info;
diff --git a/drivers/video/hgafb.c b/drivers/video/hgafb.c
index 0129c044f6d6..db9b785b56eb 100644
--- a/drivers/video/hgafb.c
+++ b/drivers/video/hgafb.c
@@ -551,7 +551,7 @@ static struct fb_ops hgafb_ops = {
         *  Initialization
         */
-static int __init hgafb_probe(struct platform_device *pdev)
+static int __devinit hgafb_probe(struct platform_device *pdev)
 {
        struct fb_info *info;
diff --git a/drivers/video/hitfb.c b/drivers/video/hitfb.c
index 73c83a8de2d3..bf78779199c6 100644
--- a/drivers/video/hitfb.c
+++ b/drivers/video/hitfb.c
@@ -325,7 +325,7 @@ static struct fb_ops hitfb_ops = {
        .fb_imageblit   = cfb_imageblit,
 };
-static int __init hitfb_probe(struct platform_device *dev)
+static int __devinit hitfb_probe(struct platform_device *dev)
 {
        unsigned short lcdclor, ldr3, ldvndr;
        struct fb_info *info;
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 913142d4cab1..9acef00c47ea 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -341,7 +341,7 @@ static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
        return manager_attr->store(manager, buf, size);
 }
-static struct sysfs_ops manager_sysfs_ops = {
+static const struct sysfs_ops manager_sysfs_ops = {
        .show = manager_attr_show,
        .store = manager_attr_store,
 };
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 0c5bea263ac6..aed3f3194347 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -320,7 +320,7 @@ static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr,
        return overlay_attr->store(overlay, buf, size);
 }
-static struct sysfs_ops overlay_sysfs_ops = {
+static const struct sysfs_ops overlay_sysfs_ops = {
        .show = overlay_attr_show,
        .store = overlay_attr_store,
 };
diff --git a/drivers/video/q40fb.c b/drivers/video/q40fb.c
index 4beac1df617b..de40a626dc76 100644
--- a/drivers/video/q40fb.c
+++ b/drivers/video/q40fb.c
@@ -85,7 +85,7 @@ static struct fb_ops q40fb_ops = {
        .fb_imageblit   = cfb_imageblit,
 };
-static int __init q40fb_probe(struct platform_device *dev)
+static int __devinit q40fb_probe(struct platform_device *dev)
 {
        struct fb_info *info;
diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index aac661225c78..2b094dec4a56 100644
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -1004,12 +1004,12 @@ dealloc_fb:
        return ret;
 }
-static int __init s3c2410fb_probe(struct platform_device *pdev)
+static int __devinit s3c2410fb_probe(struct platform_device *pdev)
 {
        return s3c24xxfb_probe(pdev, DRV_S3C2410);
 }
-static int __init s3c2412fb_probe(struct platform_device *pdev)
+static int __devinit s3c2412fb_probe(struct platform_device *pdev)
 {
        return s3c24xxfb_probe(pdev, DRV_S3C2412);
 }
diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c
index cdaa873a6054..e8b76d65a070 100644
--- a/drivers/video/sa1100fb.c
+++ b/drivers/video/sa1100fb.c
@@ -1435,7 +1435,7 @@ static struct sa1100fb_info * __init sa1100fb_init_fbinfo(struct device *dev)
        return fbi;
 }
-static int __init sa1100fb_probe(struct platform_device *pdev)
+static int __devinit sa1100fb_probe(struct platform_device *pdev)
 {
        struct sa1100fb_info *fbi;
        int ret, irq;
diff --git a/drivers/video/sgivwfb.c b/drivers/video/sgivwfb.c
index f86012239bff..7a3a5e28eca1 100644
--- a/drivers/video/sgivwfb.c
+++ b/drivers/video/sgivwfb.c
@@ -745,7 +745,7 @@ int __init sgivwfb_setup(char *options)
 /*
 *  Initialisation
 */
-static int __init sgivwfb_probe(struct platform_device *dev)
+static int __devinit sgivwfb_probe(struct platform_device *dev)
 {
        struct sgivw_par *par;
        struct fb_info *info;
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 8d7653e56df5..bbd1dbf4026a 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -943,7 +943,7 @@ static const struct dev_pm_ops sh_mobile_lcdc_dev_pm_ops = {
 static int sh_mobile_lcdc_remove(struct platform_device *pdev);
-static int __init sh_mobile_lcdc_probe(struct platform_device *pdev)
+static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
 {
        struct fb_info *info;
        struct sh_mobile_lcdc_priv *priv;
diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
index bd37ee1f6a25..ef4128c8e57a 100644
--- a/drivers/video/vesafb.c
+++ b/drivers/video/vesafb.c
@@ -226,7 +226,7 @@ static int __init vesafb_setup(char *options)
        return 0;
 }
-static int __init vesafb_probe(struct platform_device *dev)
+static int __devinit vesafb_probe(struct platform_device *dev)
 {
        struct fb_info *info;
        int i, err;
diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index 050d432c7d95..b8ab995fbda7 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -479,7 +479,7 @@ static int __init vfb_setup(char *options)
     *  Initialisation
     */
-static int __init vfb_probe(struct platform_device *dev)
+static int __devinit vfb_probe(struct platform_device *dev)
 {
        struct fb_info *info;
        int retval = -ENOMEM;
diff --git a/drivers/video/vga16fb.c b/drivers/video/vga16fb.c
index 5b2938903ac2..76d8dae5b1bb 100644
--- a/drivers/video/vga16fb.c
+++ b/drivers/video/vga16fb.c
@@ -1293,7 +1293,7 @@ static int vga16fb_setup(char *options)
 }
 #endif
-static int __init vga16fb_probe(struct platform_device *dev)
+static int __devinit vga16fb_probe(struct platform_device *dev)
 {
        struct fb_info *info;
        struct vga16fb_par *par;
diff --git a/drivers/video/w100fb.c b/drivers/video/w100fb.c
index 2376f688ec8b..5d223959778a 100644
--- a/drivers/video/w100fb.c
+++ b/drivers/video/w100fb.c
@@ -628,7 +628,7 @@ static int w100fb_resume(struct platform_device *dev)
 #endif
-int __init w100fb_probe(struct platform_device *pdev)
+int __devinit w100fb_probe(struct platform_device *pdev)
 {
        int err = -EIO;
        struct w100fb_mach_info *inf;
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 0d92969404c3..22977d30f89e 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -72,7 +72,7 @@ struct hdq_data {
        int                     init_trans;
 };
-static int __init omap_hdq_probe(struct platform_device *pdev);
+static int __devinit omap_hdq_probe(struct platform_device *pdev);
 static int omap_hdq_remove(struct platform_device *pdev);
 static struct platform_driver omap_hdq_driver = {
@@ -558,7 +558,7 @@ static void omap_w1_write_byte(void *_hdq, u8 byte)
        return;
 }
-static int __init omap_hdq_probe(struct platform_device *pdev)
+static int __devinit omap_hdq_probe(struct platform_device *pdev)
 {
        struct hdq_data *hdq_data;
        struct resource *res;
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 3da3f48720a7..bdcdbd53da89 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -55,6 +55,11 @@ config SOFT_WATCHDOG
          To compile this driver as a module, choose M here: the
          module will be called softdog.
+config MAX63XX_WATCHDOG
+       tristate "Max63xx watchdog"
+       help
+         Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
 config WM831X_WATCHDOG
        tristate "WM831x watchdog"
        depends on MFD_WM831X
@@ -289,6 +294,17 @@ config ADX_WATCHDOG
          Say Y here if you want support for the watchdog timer on Avionic
          Design Xanthos boards.
+config TS72XX_WATCHDOG
+        tristate "TS-72XX SBC Watchdog"
+        depends on MACH_TS72XX
+        help
+          Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
+          watchdog timer implemented in a external CPLD chip. Say Y here
+          if you want to support for the watchdog timer on TS-72XX boards.
+          To compile this driver as a module, choose M here: the
+          module will be called ts72xx_wdt.
 # AVR32 Architecture
 config AT32AP700X_WDT
@@ -845,10 +861,10 @@ config TXX9_WDT
 # POWERPC Architecture
 config GEF_WDT
-        tristate "GE Fanuc Watchdog Timer"
+        tristate "GE Watchdog Timer"
        depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
        ---help---
-          Watchdog timer found in a number of GE Fanuc single board computers.
+          Watchdog timer found in a number of GE single board computers.
 config MPC5200_WDT
        bool "MPC52xx Watchdog Timer"
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 475c61100069..5e3cb95bb0e9 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_COH901327_WATCHDOG) += coh901327_wdt.o
 obj-$(CONFIG_STMP3XXX_WATCHDOG) += stmp3xxx_wdt.o
 obj-$(CONFIG_NUC900_WATCHDOG) += nuc900_wdt.o
 obj-$(CONFIG_ADX_WATCHDOG) += adx_wdt.o
+obj-$(CONFIG_TS72XX_WATCHDOG) += ts72xx_wdt.o
 # AVR32 Architecture
 obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o
@@ -142,4 +143,5 @@ obj-$(CONFIG_WATCHDOG_CP1XXX)		+= cpwd.o
 # Architecture Independant
 obj-$(CONFIG_WM831X_WATCHDOG) += wm831x_wdt.o
 obj-$(CONFIG_WM8350_WATCHDOG) += wm8350_wdt.o
+obj-$(CONFIG_MAX63XX_WATCHDOG) += max63xx_wdt.o
 obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c
index 4d18c874d963..2ffce4d75443 100644
--- a/drivers/watchdog/acquirewdt.c
+++ b/drivers/watchdog/acquirewdt.c
@@ -150,7 +150,7 @@ static long acq_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        int options, retval = -EINVAL;
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
                .firmware_version = 1,
                .identity = WATCHDOG_NAME,
diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c
index 824d076a5cd6..4d40965d2c9f 100644
--- a/drivers/watchdog/advantechwdt.c
+++ b/drivers/watchdog/advantechwdt.c
@@ -137,7 +137,7 @@ static long advwdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        int new_timeout;
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_KEEPALIVEPING |
                           WDIOF_SETTIMEOUT |
                           WDIOF_MAGICCLOSE,
diff --git a/drivers/watchdog/adx_wdt.c b/drivers/watchdog/adx_wdt.c
index 9d7d155364f8..a5ca7a6ee133 100644
--- a/drivers/watchdog/adx_wdt.c
+++ b/drivers/watchdog/adx_wdt.c
@@ -37,7 +37,7 @@ struct adx_wdt {
        spinlock_t lock;
 };
-static struct watchdog_info adx_wdt_info = {
+static const struct watchdog_info adx_wdt_info = {
        .identity = "Avionic Design Xanthos Watchdog",
        .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
 };
diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c
index 937a80fb61e1..1e9caea8ff8a 100644
--- a/drivers/watchdog/alim1535_wdt.c
+++ b/drivers/watchdog/alim1535_wdt.c
@@ -180,7 +180,7 @@ static long ali_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options =              WDIOF_KEEPALIVEPING |
                                        WDIOF_SETTIMEOUT |
                                        WDIOF_MAGICCLOSE,
diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
index f90afdb1b255..d8d4da9a483d 100644
--- a/drivers/watchdog/alim7101_wdt.c
+++ b/drivers/watchdog/alim7101_wdt.c
@@ -238,7 +238,7 @@ static long fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
                                                        | WDIOF_MAGICCLOSE,
                .firmware_version = 1,
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index 2bb95cd308c1..c764c52412e4 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -219,7 +219,7 @@ static ssize_t ar7_wdt_write(struct file *file, const char *data,
 static long ar7_wdt_ioctl(struct file *file,
                                        unsigned int cmd, unsigned long arg)
 {
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .identity = LONGNAME,
                .firmware_version = 1,
                .options = (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c
index 037847923dcb..6873376f986c 100644
--- a/drivers/watchdog/at32ap700x_wdt.c
+++ b/drivers/watchdog/at32ap700x_wdt.c
@@ -202,7 +202,7 @@ static int at32_wdt_get_status(void)
        return status;
 }
-static struct watchdog_info at32_wdt_info = {
+static const struct watchdog_info at32_wdt_info = {
        .identity       = "at32ap700x watchdog",
        .options        = WDIOF_SETTIMEOUT |
                          WDIOF_KEEPALIVEPING |
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index b185dafe1494..b3046dc4b56c 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -121,7 +121,7 @@ static int at91_wdt_settimeout(int new_time)
        return 0;
 }
-static struct watchdog_info at91_wdt_info = {
+static const struct watchdog_info at91_wdt_info = {
        .identity       = "at91 watchdog",
        .options        = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
 };
diff --git a/drivers/watchdog/bcm47xx_wdt.c b/drivers/watchdog/bcm47xx_wdt.c
index 751c003864ad..5f245522397b 100644
--- a/drivers/watchdog/bcm47xx_wdt.c
+++ b/drivers/watchdog/bcm47xx_wdt.c
@@ -149,7 +149,7 @@ static ssize_t bcm47xx_wdt_write(struct file *file, const char __user *data,
        return len;
 }
-static struct watchdog_info bcm47xx_wdt_info = {
+static const struct watchdog_info bcm47xx_wdt_info = {
        .identity       = DRV_NAME,
        .options        = WDIOF_SETTIMEOUT |
                                WDIOF_KEEPALIVEPING |
diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c
index 2159e668751c..9c7ccd1e9088 100644
--- a/drivers/watchdog/bfin_wdt.c
+++ b/drivers/watchdog/bfin_wdt.c
@@ -19,8 +19,6 @@
 #include <linux/miscdevice.h>
 #include <linux/watchdog.h>
 #include <linux/fs.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/uaccess.h>
@@ -74,7 +72,7 @@
 static unsigned int timeout = WATCHDOG_TIMEOUT;
 static int nowayout = WATCHDOG_NOWAYOUT;
-static struct watchdog_info bfin_wdt_info;
+static const struct watchdog_info bfin_wdt_info;
 static unsigned long open_check;
 static char expect_close;
 static DEFINE_SPINLOCK(bfin_wdt_spinlock);
@@ -309,26 +307,6 @@ static long bfin_wdt_ioctl(struct file *file,
        }
 }
-/**
- *      bfin_wdt_notify_sys - Notifier Handler
- *      @this: notifier block
- *      @code: notifier event
- *      @unused: unused
- *
- *      Handles specific events, such as turning off the watchdog during a
- *      shutdown event.
- */
-static int bfin_wdt_notify_sys(struct notifier_block *this,
-                                        unsigned long code, void *unused)
-{
-        stampit();
-        if (code == SYS_DOWN || code == SYS_HALT)
-                bfin_wdt_stop();
-        return NOTIFY_DONE;
-}
 #ifdef CONFIG_PM
 static int state_before_suspend;
@@ -388,40 +366,28 @@ static struct miscdevice bfin_wdt_miscdev = {
        .fops     = &bfin_wdt_fops,
 };
-static struct watchdog_info bfin_wdt_info = {
+static const struct watchdog_info bfin_wdt_info = {
        .identity = "Blackfin Watchdog",
        .options  = WDIOF_SETTIMEOUT |
                    WDIOF_KEEPALIVEPING |
                    WDIOF_MAGICCLOSE,
 };
-static struct notifier_block bfin_wdt_notifier = {
-        .notifier_call = bfin_wdt_notify_sys,
-};
 /**
 *      bfin_wdt_probe - Initialize module
 *
- *      Registers the misc device and notifier handler.  Actual device
+ *      Registers the misc device.  Actual device
 *      initialization is handled by bfin_wdt_open().
 */
 static int __devinit bfin_wdt_probe(struct platform_device *pdev)
 {
        int ret;
-        ret = register_reboot_notifier(&bfin_wdt_notifier);
-        if (ret) {
-                pr_devinit(KERN_ERR PFX
-                        "cannot register reboot notifier (err=%d)\n", ret);
-                return ret;
-        }
        ret = misc_register(&bfin_wdt_miscdev);
        if (ret) {
                pr_devinit(KERN_ERR PFX
                        "cannot register miscdev on minor=%d (err=%d)\n",
                                WATCHDOG_MINOR, ret);
-                unregister_reboot_notifier(&bfin_wdt_notifier);
                return ret;
        }
@@ -434,21 +400,33 @@ static int __devinit bfin_wdt_probe(struct platform_device *pdev)
 /**
 *      bfin_wdt_remove - Initialize module
 *
- *      Unregisters the misc device and notifier handler.  Actual device
+ *      Unregisters the misc device.  Actual device
 *      deinitialization is handled by bfin_wdt_close().
 */
 static int __devexit bfin_wdt_remove(struct platform_device *pdev)
 {
        misc_deregister(&bfin_wdt_miscdev);
-        unregister_reboot_notifier(&bfin_wdt_notifier);
        return 0;
 }
+/**
+ *      bfin_wdt_shutdown - Soft Shutdown Handler
+ *
+ *      Handles the soft shutdown event.
+ */
+static void bfin_wdt_shutdown(struct platform_device *pdev)
+{
+        stampit();
+        bfin_wdt_stop();
+}
 static struct platform_device *bfin_wdt_device;
 static struct platform_driver bfin_wdt_driver = {
        .probe     = bfin_wdt_probe,
        .remove    = __devexit_p(bfin_wdt_remove),
+        .shutdown  = bfin_wdt_shutdown,
        .suspend   = bfin_wdt_suspend,
        .resume    = bfin_wdt_resume,
        .driver    = {
diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index e8380ef65c1c..8b724aad6825 100644
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -121,7 +121,7 @@ static ssize_t booke_wdt_write(struct file *file, const char __user *buf,
        return count;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
        .identity = "PowerPC Book-E Watchdog",
 };
diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c
index 923cc68dba26..9291506b8b23 100644
--- a/drivers/watchdog/coh901327_wdt.c
+++ b/drivers/watchdog/coh901327_wdt.c
@@ -257,7 +257,7 @@ static long coh901327_ioctl(struct file *file, unsigned int cmd,
                struct watchdog_info __user *ident;
                int __user *i;
        } uarg;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options                = WDIOF_CARDRESET |
                                          WDIOF_SETTIMEOUT |
                                          WDIOF_KEEPALIVEPING,
diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c
index 71f6d7eec9a8..edd3475f41db 100644
--- a/drivers/watchdog/cpu5wdt.c
+++ b/drivers/watchdog/cpu5wdt.c
@@ -154,7 +154,7 @@ static long cpu5wdt_ioctl(struct file *file, unsigned int cmd,
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
        unsigned int value;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_CARDRESET,
                .identity = "CPU5 WDT",
        };
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 081f2955419e..37ea052d4dee 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -403,7 +403,7 @@ static int cpwd_release(struct inode *inode, struct file *file)
 static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-        static struct watchdog_info info = {
+        static const struct watchdog_info info = {
                .options                = WDIOF_SETTIMEOUT,
                .firmware_version       = 1,
                .identity               = DRIVER_NAME,
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 887136de1857..56162c87f5d8 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -142,7 +142,7 @@ davinci_wdt_write(struct file *file, const char *data, size_t len,
        return len;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options = WDIOF_KEEPALIVEPING,
        .identity = "DaVinci Watchdog",
 };
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index cdd55e0d09f8..88ed54e50f74 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -131,7 +131,7 @@ ep93xx_wdt_write(struct file *file, const char __user *data, size_t len,
        return len;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE,
        .identity = "EP93xx Watchdog",
 };
diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c
index 9add3541fb42..d1c4e55b1db0 100644
--- a/drivers/watchdog/eurotechwdt.c
+++ b/drivers/watchdog/eurotechwdt.c
@@ -238,7 +238,7 @@ static long eurwdt_ioctl(struct file *file,
 {
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options          = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
                                                        | WDIOF_MAGICCLOSE,
                .firmware_version = 1,
diff --git a/drivers/watchdog/gef_wdt.c b/drivers/watchdog/gef_wdt.c
index 734d9806a872..abdbad034a6c 100644
--- a/drivers/watchdog/gef_wdt.c
+++ b/drivers/watchdog/gef_wdt.c
@@ -1,9 +1,9 @@
 /*
- * GE Fanuc watchdog userspace interface
+ * GE watchdog userspace interface
 *
- * Author:  Martyn Welch <martyn.welch@gefanuc.com>
+ * Author:  Martyn Welch <martyn.welch@ge.com>
 *
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, 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
@@ -161,11 +161,11 @@ static long gef_wdt_ioctl(struct file *file, unsigned int cmd,
        int timeout;
        int options;
        void __user *argp = (void __user *)arg;
-        static struct watchdog_info info = {
+        static const struct watchdog_info info = {
                .options =      WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE |
                                WDIOF_KEEPALIVEPING,
                .firmware_version = 0,
-                .identity = "GE Fanuc watchdog",
+                .identity = "GE watchdog",
        };
        switch (cmd) {
@@ -311,7 +311,7 @@ static struct of_platform_driver gef_wdt_driver = {
 static int __init gef_wdt_init(void)
 {
-        printk(KERN_INFO "GE Fanuc watchdog driver\n");
+        printk(KERN_INFO "GE watchdog driver\n");
        return of_register_platform_driver(&gef_wdt_driver);
 }
@@ -323,8 +323,8 @@ static void __exit gef_wdt_exit(void)
 module_init(gef_wdt_init);
 module_exit(gef_wdt_exit);
-MODULE_AUTHOR("Martyn Welch <martyn.welch@gefanuc.com>");
+MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com>");
-MODULE_DESCRIPTION("GE Fanuc watchdog driver");
+MODULE_DESCRIPTION("GE watchdog driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform: gef_wdt");
diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
index 38252ff828ca..9b49b125ad5a 100644
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -142,7 +142,7 @@ static long geodewdt_ioctl(struct file *file, unsigned int cmd,
        int __user *p = argp;
        int interval;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING
                | WDIOF_MAGICCLOSE,
                .firmware_version =     1,
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index a6c5674c78e6..70c2c24660d0 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -554,7 +554,7 @@ static ssize_t hpwdt_write(struct file *file, const char __user *data,
        return len;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options = WDIOF_SETTIMEOUT |
                   WDIOF_KEEPALIVEPING |
                   WDIOF_MAGICCLOSE,
diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c
index 7ba0b11ec525..bb9750a03942 100644
--- a/drivers/watchdog/i6300esb.c
+++ b/drivers/watchdog/i6300esb.c
@@ -34,7 +34,6 @@
 #include <linux/mm.h>
 #include <linux/miscdevice.h>
 #include <linux/watchdog.h>
-#include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/ioport.h>
@@ -42,7 +41,7 @@
 #include <linux/io.h>
 /* Module and version information */
-#define ESB_VERSION "0.04"
+#define ESB_VERSION "0.05"
 #define ESB_MODULE_NAME "i6300ESB timer"
 #define ESB_DRIVER_NAME ESB_MODULE_NAME ", v" ESB_VERSION
 #define PFX ESB_MODULE_NAME ": "
@@ -65,7 +64,7 @@
 /* Config register bits */
 #define ESB_WDT_REBOOT  (0x01 << 5)   /* Enable reboot on timeout          */
 #define ESB_WDT_FREQ    (0x01 << 2)   /* Decrement frequency               */
-#define ESB_WDT_INTTYPE (0x11 << 0)   /* Interrupt type on timer1 timeout  */
+#define ESB_WDT_INTTYPE (0x03 << 0)   /* Interrupt type on timer1 timeout  */
 /* Reload register bits */
 #define ESB_WDT_TIMEOUT (0x01 << 9)    /* Watchdog timed out                */
@@ -82,7 +81,9 @@ static unsigned long timer_alive;
 static struct pci_dev *esb_pci;
 static unsigned short triggered; /* The status of the watchdog upon boot */
 static char esb_expect_close;
-static struct platform_device *esb_platform_device;
+/* We can only use 1 card due to the /dev/watchdog restriction */
+static int cards_found;
 /* module parameters */
 /* 30 sec default heartbeat (1 < heartbeat < 2*1023) */
@@ -111,8 +112,8 @@ MODULE_PARM_DESC(nowayout,
 */
 static inline void esb_unlock_registers(void)
 {
-        writeb(ESB_UNLOCK1, ESB_RELOAD_REG);
+        writew(ESB_UNLOCK1, ESB_RELOAD_REG);
-        writeb(ESB_UNLOCK2, ESB_RELOAD_REG);
+        writew(ESB_UNLOCK2, ESB_RELOAD_REG);
 }
 static int esb_timer_start(void)
@@ -256,7 +257,7 @@ static long esb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        int new_heartbeat;
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options =              WDIOF_SETTIMEOUT |
                                        WDIOF_KEEPALIVEPING |
                                        WDIOF_MAGICCLOSE,
@@ -332,11 +333,6 @@ static struct miscdevice esb_miscdev = {
 /*
 * Data for PCI driver interface
- *
- * This data only exists for exporting the supported
- * PCI ids via MODULE_DEVICE_TABLE.  We do not actually
- * register a pci_driver, because someone else might one day
- * want to register another driver on the same PCI id.
 */
 static struct pci_device_id esb_pci_tbl[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_9), },
@@ -348,29 +344,19 @@ MODULE_DEVICE_TABLE(pci, esb_pci_tbl);
 *      Init & exit routines
 */
-static unsigned char __devinit esb_getdevice(void)
+static unsigned char __devinit esb_getdevice(struct pci_dev *pdev)
 {
-        /*
+        if (pci_enable_device(pdev)) {
-         *      Find the PCI device
-         */
-        esb_pci = pci_get_device(PCI_VENDOR_ID_INTEL,
-                                        PCI_DEVICE_ID_INTEL_ESB_9, NULL);
-        if (!esb_pci)
-                return 0;
-        if (pci_enable_device(esb_pci)) {
                printk(KERN_ERR PFX "failed to enable device\n");
                goto err_devput;
        }
-        if (pci_request_region(esb_pci, 0, ESB_MODULE_NAME)) {
+        if (pci_request_region(pdev, 0, ESB_MODULE_NAME)) {
                printk(KERN_ERR PFX "failed to request region\n");
                goto err_disable;
        }
-        BASEADDR = pci_ioremap_bar(esb_pci, 0);
+        BASEADDR = pci_ioremap_bar(pdev, 0);
        if (BASEADDR == NULL) {
                /* Something's wrong here, BASEADDR has to be set */
                printk(KERN_ERR PFX "failed to get BASEADDR\n");
@@ -378,14 +364,14 @@ static unsigned char __devinit esb_getdevice(void)
        }
        /* Done */
+        esb_pci = pdev;
        return 1;
 err_release:
-        pci_release_region(esb_pci, 0);
+        pci_release_region(pdev, 0);
 err_disable:
-        pci_disable_device(esb_pci);
+        pci_disable_device(pdev);
 err_devput:
-        pci_dev_put(esb_pci);
        return 0;
 }
@@ -430,12 +416,23 @@ static void __devinit esb_initdevice(void)
        esb_timer_set_heartbeat(heartbeat);
 }
-static int __devinit esb_probe(struct platform_device *dev)
+static int __devinit esb_probe(struct pci_dev *pdev,
+                const struct pci_device_id *ent)
 {
        int ret;
+        cards_found++;
+        if (cards_found == 1)
+                printk(KERN_INFO PFX "Intel 6300ESB WatchDog Timer Driver v%s\n",
+                        ESB_VERSION);
+        if (cards_found > 1) {
+                printk(KERN_ERR PFX "This driver only supports 1 device\n");
+                return -ENODEV;
+        }
        /* Check whether or not the hardware watchdog is there */
-        if (!esb_getdevice() || esb_pci == NULL)
+        if (!esb_getdevice(pdev) || esb_pci == NULL)
                return -ENODEV;
        /* Check that the heartbeat value is within it's range;
@@ -467,11 +464,11 @@ err_unmap:
        iounmap(BASEADDR);
        pci_release_region(esb_pci, 0);
        pci_disable_device(esb_pci);
-        pci_dev_put(esb_pci);
+        esb_pci = NULL;
        return ret;
 }
-static int __devexit esb_remove(struct platform_device *dev)
+static void __devexit esb_remove(struct pci_dev *pdev)
 {
        /* Stop the timer before we leave */
        if (!nowayout)
@@ -482,54 +479,30 @@ static int __devexit esb_remove(struct platform_device *dev)
        iounmap(BASEADDR);
        pci_release_region(esb_pci, 0);
        pci_disable_device(esb_pci);
-        pci_dev_put(esb_pci);
+        esb_pci = NULL;
-        return 0;
 }
-static void esb_shutdown(struct platform_device *dev)
+static void esb_shutdown(struct pci_dev *pdev)
 {
        esb_timer_stop();
 }
-static struct platform_driver esb_platform_driver = {
+static struct pci_driver esb_driver = {
+        .name           = ESB_MODULE_NAME,
+        .id_table       = esb_pci_tbl,
        .probe          = esb_probe,
        .remove         = __devexit_p(esb_remove),
        .shutdown       = esb_shutdown,
-        .driver         = {
-                .owner  = THIS_MODULE,
-                .name   = ESB_MODULE_NAME,
-        },
 };
 static int __init watchdog_init(void)
 {
-        int err;
+        return pci_register_driver(&esb_driver);
-        printk(KERN_INFO PFX "Intel 6300ESB WatchDog Timer Driver v%s\n",
-                ESB_VERSION);
-        err = platform_driver_register(&esb_platform_driver);
-        if (err)
-                return err;
-        esb_platform_device = platform_device_register_simple(ESB_MODULE_NAME,
-                                                                -1, NULL, 0);
-        if (IS_ERR(esb_platform_device)) {
-                err = PTR_ERR(esb_platform_device);
-                goto unreg_platform_driver;
-        }
-        return 0;
-unreg_platform_driver:
-        platform_driver_unregister(&esb_platform_driver);
-        return err;
 }
 static void __exit watchdog_cleanup(void)
 {
-        platform_device_unregister(esb_platform_device);
+        pci_unregister_driver(&esb_driver);
-        platform_driver_unregister(&esb_platform_driver);
        printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
 }
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index 4bdb7f1a9077..44bc6aa46edf 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -584,7 +584,7 @@ static long iTCO_wdt_ioctl(struct file *file, unsigned int cmd,
        int new_heartbeat;
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options =              WDIOF_SETTIMEOUT |
                                        WDIOF_KEEPALIVEPING |
                                        WDIOF_MAGICCLOSE,
@@ -698,7 +698,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
        if (iTCO_wdt_private.iTCO_version == 2) {
                pci_read_config_dword(pdev, 0xf0, &base_address);
                if ((base_address & 1) == 0) {
-                        printk(KERN_ERR PFX "RCBA is disabled by harddware\n");
+                        printk(KERN_ERR PFX "RCBA is disabled by hardware\n");
                        ret = -ENODEV;
                        goto out;
                }
@@ -708,8 +708,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
        /* Check chipset's NO_REBOOT bit */
        if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) {
-                printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, "
+                printk(KERN_INFO PFX "unable to reset NO_REBOOT flag, "
-                                        "reboot disabled by hardware\n");
+                                        "platform may have disabled it\n");
                ret = -ENODEV;  /* Cannot reset NO_REBOOT bit */
                goto out_unmap;
        }
@@ -805,6 +805,7 @@ static void __devexit iTCO_wdt_cleanup(void)
 static int __devinit iTCO_wdt_probe(struct platform_device *dev)
 {
+        int ret = -ENODEV;
        int found = 0;
        struct pci_dev *pdev = NULL;
        const struct pci_device_id *ent;
@@ -814,19 +815,17 @@ static int __devinit iTCO_wdt_probe(struct platform_device *dev)
        for_each_pci_dev(pdev) {
                ent = pci_match_id(iTCO_wdt_pci_tbl, pdev);
                if (ent) {
-                        if (!(iTCO_wdt_init(pdev, ent, dev))) {
+                        found++;
-                                found++;
+                        ret = iTCO_wdt_init(pdev, ent, dev);
+                        if (!ret)
                                break;
-                        }
                }
        }
-        if (!found) {
+        if (!found)
                printk(KERN_INFO PFX "No card detected\n");
-                return -ENODEV;
-        }
-        return 0;
+        return ret;
 }
 static int __devexit iTCO_wdt_remove(struct platform_device *dev)
diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c
index 4bef3ddff4a5..0149d8dfc81d 100644
--- a/drivers/watchdog/ib700wdt.c
+++ b/drivers/watchdog/ib700wdt.c
@@ -174,7 +174,7 @@ static long ibwdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
                                                        | WDIOF_MAGICCLOSE,
                .firmware_version = 1,
diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c
index bea8a124a559..1cc5609666d1 100644
--- a/drivers/watchdog/indydog.c
+++ b/drivers/watchdog/indydog.c
@@ -111,7 +111,7 @@ static long indydog_ioctl(struct file *file, unsigned int cmd,
                                                        unsigned long arg)
 {
        int options, retval = -EINVAL;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options                = WDIOF_KEEPALIVEPING,
                .firmware_version       = 0,
                .identity               = "Hardware Watchdog for SGI IP22",
diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c
index daed48ded7fe..f52c162b1bea 100644
--- a/drivers/watchdog/it8712f_wdt.c
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -236,7 +236,7 @@ static long it8712f_wdt_ioctl(struct file *file, unsigned int cmd,
 {
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .identity = "IT8712F Watchdog",
                .firmware_version = 1,
                .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c
index cc133c531d08..b709b3b2d1ef 100644
--- a/drivers/watchdog/it87_wdt.c
+++ b/drivers/watchdog/it87_wdt.c
@@ -421,7 +421,7 @@ static ssize_t wdt_write(struct file *file, const char __user *buf,
        return count;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
        .firmware_version =     1,
        .identity = WATCHDOG_NAME,
diff --git a/drivers/watchdog/ixp2000_wdt.c b/drivers/watchdog/ixp2000_wdt.c
index 3c79dc587958..e86952a7168c 100644
--- a/drivers/watchdog/ixp2000_wdt.c
+++ b/drivers/watchdog/ixp2000_wdt.c
@@ -100,7 +100,7 @@ static ssize_t ixp2000_wdt_write(struct file *file, const char *data,
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options        = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
                                WDIOF_KEEPALIVEPING,
        .identity       = "IXP2000 Watchdog",
diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
index 147b4d5c63b3..e02c0ecda26b 100644
--- a/drivers/watchdog/ixp4xx_wdt.c
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -89,7 +89,7 @@ ixp4xx_wdt_write(struct file *file, const char *data, size_t len, loff_t *ppos)
        return len;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options        = WDIOF_CARDRESET | WDIOF_MAGICCLOSE |
                          WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
        .identity       = "IXP4xx Watchdog",
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index e1c82769b08e..2852bb2e3fd9 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -145,7 +145,7 @@ static int ks8695_wdt_close(struct inode *inode, struct file *file)
        return 0;
 }
-static struct watchdog_info ks8695_wdt_info = {
+static const struct watchdog_info ks8695_wdt_info = {
        .identity       = "ks8695 watchdog",
        .options        = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
 };
diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
index 47d719717a3b..2d118cf022fc 100644
--- a/drivers/watchdog/machzwd.c
+++ b/drivers/watchdog/machzwd.c
@@ -101,7 +101,7 @@ MODULE_PARM_DESC(nowayout,
 #define PFX "machzwd"
-static struct watchdog_info zf_info = {
+static const struct watchdog_info zf_info = {
        .options                = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
        .firmware_version       = 1,
        .identity               = "ZF-Logic watchdog",
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
new file mode 100644
index 000000000000..6eb91d757604
--- /dev/null
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -0,0 +1,397 @@
+/*
+ * drivers/char/watchdog/max63xx_wdt.c
+ *
+ * Driver for max63{69,70,71,72,73,74} watchdog timers
+ *
+ * Copyright (C) 2009 Marc Zyngier <maz@misterjones.org>
+ *
+ * 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.
+ *
+ * This driver assumes the watchdog pins are memory mapped (as it is
+ * the case for the Arcom Zeus). Should it be connected over GPIOs or
+ * another interface, some abstraction will have to be introduced.
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <linux/device.h>
+#define DEFAULT_HEARTBEAT 60
+#define MAX_HEARTBEAT     60
+static int heartbeat = DEFAULT_HEARTBEAT;
+static int nowayout  = WATCHDOG_NOWAYOUT;
+/*
+ * Memory mapping: a single byte, 3 first lower bits to select bit 3
+ * to ping the watchdog.
+ */
+#define MAX6369_WDSET   (7 << 0)
+#define MAX6369_WDI     (1 << 3)
+static DEFINE_SPINLOCK(io_lock);
+static unsigned long wdt_status;
+#define WDT_IN_USE      0
+#define WDT_RUNNING     1
+#define WDT_OK_TO_CLOSE 2
+static int nodelay;
+static struct resource  *wdt_mem;
+static void __iomem     *wdt_base;
+static struct platform_device *max63xx_pdev;
+/*
+ * The timeout values used are actually the absolute minimum the chip
+ * offers. Typical values on my board are slightly over twice as long
+ * (10s setting ends up with a 25s timeout), and can be up to 3 times
+ * the nominal setting (according to the datasheet). So please take
+ * these values with a grain of salt. Same goes for the initial delay
+ * "feature". Only max6373/74 have a few settings without this initial
+ * delay (selected with the "nodelay" parameter).
+ *
+ * I also decided to remove from the tables any timeout smaller than a
+ * second, as it looked completly overkill...
+ */
+/* Timeouts in second */
+struct max63xx_timeout {
+        u8 wdset;
+        u8 tdelay;
+        u8 twd;
+};
+static struct max63xx_timeout max6369_table[] = {
+        { 5,  1,  1 },
+        { 6, 10, 10 },
+        { 7, 60, 60 },
+        { },
+};
+static struct max63xx_timeout max6371_table[] = {
+        { 6, 60,  3 },
+        { 7, 60, 60 },
+        { },
+};
+static struct max63xx_timeout max6373_table[] = {
+        { 2, 60,  1 },
+        { 5,  0,  1 },
+        { 1,  3,  3 },
+        { 7, 60, 10 },
+        { 6,  0, 10 },
+        { },
+};
+static struct max63xx_timeout *current_timeout;
+static struct max63xx_timeout *
+max63xx_select_timeout(struct max63xx_timeout *table, int value)
+{
+        while (table->twd) {
+                if (value <= table->twd) {
+                        if (nodelay && table->tdelay == 0)
+                                return table;
+                        if (!nodelay)
+                                return table;
+                }
+                table++;
+        }
+        return NULL;
+}
+static void max63xx_wdt_ping(void)
+{
+        u8 val;
+        spin_lock(&io_lock);
+        val = __raw_readb(wdt_base);
+        __raw_writeb(val | MAX6369_WDI, wdt_base);
+        __raw_writeb(val & ~MAX6369_WDI, wdt_base);
+        spin_unlock(&io_lock);
+}
+static void max63xx_wdt_enable(struct max63xx_timeout *entry)
+{
+        u8 val;
+        if (test_and_set_bit(WDT_RUNNING, &wdt_status))
+                return;
+        spin_lock(&io_lock);
+        val = __raw_readb(wdt_base);
+        val &= ~MAX6369_WDSET;
+        val |= entry->wdset;
+        __raw_writeb(val, wdt_base);
+        spin_unlock(&io_lock);
+        /* check for a edge triggered startup */
+        if (entry->tdelay == 0)
+                max63xx_wdt_ping();
+}
+static void max63xx_wdt_disable(void)
+{
+        spin_lock(&io_lock);
+        __raw_writeb(3, wdt_base);
+        spin_unlock(&io_lock);
+        clear_bit(WDT_RUNNING, &wdt_status);
+}
+static int max63xx_wdt_open(struct inode *inode, struct file *file)
+{
+        if (test_and_set_bit(WDT_IN_USE, &wdt_status))
+                return -EBUSY;
+        max63xx_wdt_enable(current_timeout);
+        clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+        return nonseekable_open(inode, file);
+}
+static ssize_t max63xx_wdt_write(struct file *file, const char *data,
+                                 size_t len, loff_t *ppos)
+{
+        if (len) {
+                if (!nowayout) {
+                        size_t i;
+                        clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+                        for (i = 0; i != len; i++) {
+                                char c;
+                                if (get_user(c, data + i))
+                                        return -EFAULT;
+                                if (c == 'V')
+                                        set_bit(WDT_OK_TO_CLOSE, &wdt_status);
+                        }
+                }
+                max63xx_wdt_ping();
+        }
+        return len;
+}
+static const struct watchdog_info ident = {
+        .options = WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
+        .identity = "max63xx Watchdog",
+};
+static long max63xx_wdt_ioctl(struct file *file, unsigned int cmd,
+                              unsigned long arg)
+{
+        int ret = -ENOTTY;
+        switch (cmd) {
+        case WDIOC_GETSUPPORT:
+                ret = copy_to_user((struct watchdog_info *)arg, &ident,
+                                   sizeof(ident)) ? -EFAULT : 0;
+                break;
+        case WDIOC_GETSTATUS:
+        case WDIOC_GETBOOTSTATUS:
+                ret = put_user(0, (int *)arg);
+                break;
+        case WDIOC_KEEPALIVE:
+                max63xx_wdt_ping();
+                ret = 0;
+                break;
+        case WDIOC_GETTIMEOUT:
+                ret = put_user(heartbeat, (int *)arg);
+                break;
+        }
+        return ret;
+}
+static int max63xx_wdt_release(struct inode *inode, struct file *file)
+{
+        if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
+                max63xx_wdt_disable();
+        else
+                dev_crit(&max63xx_pdev->dev,
+                         "device closed unexpectedly - timer will not stop\n");
+        clear_bit(WDT_IN_USE, &wdt_status);
+        clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
+        return 0;
+}
+static const struct file_operations max63xx_wdt_fops = {
+        .owner          = THIS_MODULE,
+        .llseek         = no_llseek,
+        .write          = max63xx_wdt_write,
+        .unlocked_ioctl = max63xx_wdt_ioctl,
+        .open           = max63xx_wdt_open,
+        .release        = max63xx_wdt_release,
+};
+static struct miscdevice max63xx_wdt_miscdev = {
+        .minor  = WATCHDOG_MINOR,
+        .name   = "watchdog",
+        .fops   = &max63xx_wdt_fops,
+};
+static int __devinit max63xx_wdt_probe(struct platform_device *pdev)
+{
+        int ret = 0;
+        int size;
+        struct resource *res;
+        struct device *dev = &pdev->dev;
+        struct max63xx_timeout *table;
+        table = (struct max63xx_timeout *)pdev->id_entry->driver_data;
+        if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
+                heartbeat = DEFAULT_HEARTBEAT;
+        dev_info(dev, "requesting %ds heartbeat\n", heartbeat);
+        current_timeout = max63xx_select_timeout(table, heartbeat);
+        if (!current_timeout) {
+                dev_err(dev, "unable to satisfy heartbeat request\n");
+                return -EINVAL;
+        }
+        dev_info(dev, "using %ds heartbeat with %ds initial delay\n",
+                 current_timeout->twd, current_timeout->tdelay);
+        heartbeat = current_timeout->twd;
+        max63xx_pdev = pdev;
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (res == NULL) {
+                dev_err(dev, "failed to get memory region resource\n");
+                return -ENOENT;
+        }
+        size = resource_size(res);
+        wdt_mem = request_mem_region(res->start, size, pdev->name);
+        if (wdt_mem == NULL) {
+                dev_err(dev, "failed to get memory region\n");
+                return -ENOENT;
+        }
+        wdt_base = ioremap(res->start, size);
+        if (!wdt_base) {
+                dev_err(dev, "failed to map memory region\n");
+                ret = -ENOMEM;
+                goto out_request;
+        }
+        ret = misc_register(&max63xx_wdt_miscdev);
+        if (ret < 0) {
+                dev_err(dev, "cannot register misc device\n");
+                goto out_unmap;
+        }
+        return 0;
+out_unmap:
+        iounmap(wdt_base);
+out_request:
+        release_resource(wdt_mem);
+        kfree(wdt_mem);
+        return ret;
+}
+static int __devexit max63xx_wdt_remove(struct platform_device *pdev)
+{
+        misc_deregister(&max63xx_wdt_miscdev);
+        if (wdt_mem) {
+                release_resource(wdt_mem);
+                kfree(wdt_mem);
+                wdt_mem = NULL;
+        }
+        if (wdt_base)
+                iounmap(wdt_base);
+        return 0;
+}
+static struct platform_device_id max63xx_id_table[] = {
+        { "max6369_wdt", (kernel_ulong_t)max6369_table, },
+        { "max6370_wdt", (kernel_ulong_t)max6369_table, },
+        { "max6371_wdt", (kernel_ulong_t)max6371_table, },
+        { "max6372_wdt", (kernel_ulong_t)max6371_table, },
+        { "max6373_wdt", (kernel_ulong_t)max6373_table, },
+        { "max6374_wdt", (kernel_ulong_t)max6373_table, },
+        { },
+};
+MODULE_DEVICE_TABLE(platform, max63xx_id_table);
+static struct platform_driver max63xx_wdt_driver = {
+        .probe          = max63xx_wdt_probe,
+        .remove         = __devexit_p(max63xx_wdt_remove),
+        .id_table       = max63xx_id_table,
+        .driver         = {
+                .name   = "max63xx_wdt",
+                .owner  = THIS_MODULE,
+        },
+};
+static int __init max63xx_wdt_init(void)
+{
+        return platform_driver_register(&max63xx_wdt_driver);
+}
+static void __exit max63xx_wdt_exit(void)
+{
+        platform_driver_unregister(&max63xx_wdt_driver);
+}
+module_init(max63xx_wdt_init);
+module_exit(max63xx_wdt_exit);
+MODULE_AUTHOR("Marc Zyngier <maz@misterjones.org>");
+MODULE_DESCRIPTION("max63xx Watchdog Driver");
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat,
+                 "Watchdog heartbeat period in seconds from 1 to "
+                 __MODULE_STRING(MAX_HEARTBEAT) ", default "
+                 __MODULE_STRING(DEFAULT_HEARTBEAT));
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+                 __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+module_param(nodelay, int, 0);
+MODULE_PARM_DESC(nodelay,
+                 "Force selection of a timeout setting without initial delay "
+                 "(max6373/74 only, default=0)");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/mixcomwd.c b/drivers/watchdog/mixcomwd.c
index 407b025cb104..bc820d16699a 100644
--- a/drivers/watchdog/mixcomwd.c
+++ b/drivers/watchdog/mixcomwd.c
@@ -201,7 +201,7 @@ static long mixcomwd_ioctl(struct file *file,
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
        int status;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
                .firmware_version = 1,
                .identity = "MixCOM watchdog",
diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c
index 38c588ee694f..4e3941c5e293 100644
--- a/drivers/watchdog/mpc8xxx_wdt.c
+++ b/drivers/watchdog/mpc8xxx_wdt.c
@@ -148,7 +148,7 @@ static long mpc8xxx_wdt_ioctl(struct file *file, unsigned int cmd,
 {
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_KEEPALIVEPING,
                .firmware_version = 1,
                .identity = "MPC8xxx",
diff --git a/drivers/watchdog/mpcore_wdt.c b/drivers/watchdog/mpcore_wdt.c
index a2dc07c2ed49..b0646dac924e 100644
--- a/drivers/watchdog/mpcore_wdt.c
+++ b/drivers/watchdog/mpcore_wdt.c
@@ -213,7 +213,7 @@ static ssize_t mpcore_wdt_write(struct file *file, const char *data,
        return len;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options                = WDIOF_SETTIMEOUT |
                                  WDIOF_KEEPALIVEPING |
                                  WDIOF_MAGICCLOSE,
diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c
index a51dbe4c43da..97f8a48d8b78 100644
--- a/drivers/watchdog/mv64x60_wdt.c
+++ b/drivers/watchdog/mv64x60_wdt.c
@@ -179,7 +179,7 @@ static long mv64x60_wdt_ioctl(struct file *file,
        int timeout;
        int options;
        void __user *argp = (void __user *)arg;
-        static struct watchdog_info info = {
+        static const struct watchdog_info info = {
                .options =      WDIOF_SETTIMEOUT        |
                                WDIOF_MAGICCLOSE        |
                                WDIOF_KEEPALIVEPING,
diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c
index 1a2b916e3f8d..d3aa2f1fe61d 100644
--- a/drivers/watchdog/pc87413_wdt.c
+++ b/drivers/watchdog/pc87413_wdt.c
@@ -407,7 +407,7 @@ static long pc87413_ioctl(struct file *file, unsigned int cmd,
                int __user *i;
        } uarg;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options          = WDIOF_KEEPALIVEPING |
                                    WDIOF_SETTIMEOUT |
                                    WDIOF_MAGICCLOSE,
diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c
index aa9512321f3a..06f7922606c0 100644
--- a/drivers/watchdog/pcwd.c
+++ b/drivers/watchdog/pcwd.c
@@ -606,7 +606,7 @@ static long pcwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        int temperature;
        int new_heartbeat;
        int __user *argp = (int __user *)arg;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options =              WDIOF_OVERHEAT |
                                        WDIOF_CARDRESET |
                                        WDIOF_KEEPALIVEPING |
diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c
index 698f51bff1bc..64374d636f09 100644
--- a/drivers/watchdog/pcwd_pci.c
+++ b/drivers/watchdog/pcwd_pci.c
@@ -481,7 +481,7 @@ static long pcipcwd_ioctl(struct file *file, unsigned int cmd,
 {
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options =              WDIOF_OVERHEAT |
                                        WDIOF_CARDRESET |
                                        WDIOF_KEEPALIVEPING |
diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index 052fe451851f..8e4eacc5bb52 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -404,7 +404,7 @@ static long usb_pcwd_ioctl(struct file *file, unsigned int cmd,
 {
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options =              WDIOF_KEEPALIVEPING |
                                        WDIOF_SETTIMEOUT |
                                        WDIOF_MAGICCLOSE,
diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c
index 2d22e996e996..435ec2aed4fe 100644
--- a/drivers/watchdog/pika_wdt.c
+++ b/drivers/watchdog/pika_wdt.c
@@ -52,7 +52,7 @@ static struct {
        struct timer_list timer;        /* The timer that pings the watchdog */
 } pikawdt_private;
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .identity       = DRV_NAME,
        .options        = WDIOF_CARDRESET |
                          WDIOF_SETTIMEOUT |
diff --git a/drivers/watchdog/pnx833x_wdt.c b/drivers/watchdog/pnx833x_wdt.c
index 538ec2c05197..09102f09e681 100644
--- a/drivers/watchdog/pnx833x_wdt.c
+++ b/drivers/watchdog/pnx833x_wdt.c
@@ -141,7 +141,7 @@ static long pnx833x_wdt_ioctl(struct file *file, unsigned int cmd,
        int options, new_timeout = 0;
        uint32_t timeout, timeout_left = 0;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT,
                .firmware_version = 0,
                .identity = "Hardware Watchdog for PNX833x",
diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
index bf12d06b5877..d4c29b5311a4 100644
--- a/drivers/watchdog/rc32434_wdt.c
+++ b/drivers/watchdog/rc32434_wdt.c
@@ -198,7 +198,7 @@ static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
        void __user *argp = (void __user *)arg;
        int new_timeout;
        unsigned int value;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options =              WDIOF_SETTIMEOUT |
                                        WDIOF_KEEPALIVEPING |
                                        WDIOF_MAGICCLOSE,
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index 4976bfd1fce6..69c6adbd8205 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -149,7 +149,7 @@ static long rdc321x_wdt_ioctl(struct file *file, unsigned int cmd,
 {
        void __user *argp = (void __user *)arg;
        unsigned int value;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_CARDRESET,
                .identity = "RDC321x WDT",
        };
diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
index c14ae8676903..ae57bf9e1b03 100644
--- a/drivers/watchdog/riowd.c
+++ b/drivers/watchdog/riowd.c
@@ -85,7 +85,7 @@ static int riowd_release(struct inode *inode, struct file *filp)
 static long riowd_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
-        static struct watchdog_info info = {
+        static const struct watchdog_info info = {
                .options                = WDIOF_SETTIMEOUT,
                .firmware_version       = 1,
                .identity               = DRIVER_NAME,
diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c
index e6763d2a567b..8d44c9b6fb5b 100644
--- a/drivers/watchdog/sbc_fitpc2_wdt.c
+++ b/drivers/watchdog/sbc_fitpc2_wdt.c
@@ -111,7 +111,7 @@ out:
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options        = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
                                WDIOF_KEEPALIVEPING,
        .identity       = WATCHDOG_NAME,
diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c
index 569eb295a7a8..9c40f48804f5 100644
--- a/drivers/watchdog/sch311x_wdt.c
+++ b/drivers/watchdog/sch311x_wdt.c
@@ -250,7 +250,7 @@ static long sch311x_wdt_ioctl(struct file *file, unsigned int cmd,
        int new_timeout;
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options                = WDIOF_KEEPALIVEPING |
                                          WDIOF_SETTIMEOUT |
                                          WDIOF_MAGICCLOSE,
diff --git a/drivers/watchdog/stmp3xxx_wdt.c b/drivers/watchdog/stmp3xxx_wdt.c
index 5dd952681f32..b3421fd2cda8 100644
--- a/drivers/watchdog/stmp3xxx_wdt.c
+++ b/drivers/watchdog/stmp3xxx_wdt.c
@@ -94,7 +94,7 @@ static ssize_t stmp3xxx_wdt_write(struct file *file, const char __user *data,
        return len;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options        = WDIOF_CARDRESET |
                          WDIOF_MAGICCLOSE |
                          WDIOF_SETTIMEOUT |
diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
new file mode 100644
index 000000000000..565a2c3321e5
--- /dev/null
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -0,0 +1,520 @@
+/*
+ * Watchdog driver for Technologic Systems TS-72xx based SBCs
+ * (TS-7200, TS-7250 and TS-7260). These boards have external
+ * glue logic CPLD chip, which includes programmable watchdog
+ * timer.
+ *
+ * Copyright (c) 2009 Mika Westerberg <mika.westerberg@iki.fi>
+ *
+ * This driver is based on ep93xx_wdt and wm831x_wdt drivers.
+ *
+ * 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/fs.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/miscdevice.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/watchdog.h>
+#include <linux/uaccess.h>
+#define TS72XX_WDT_FEED_VAL             0x05
+#define TS72XX_WDT_DEFAULT_TIMEOUT      8
+static int timeout = TS72XX_WDT_DEFAULT_TIMEOUT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. "
+                          "(1 <= timeout <= 8, default="
+                          __MODULE_STRING(TS72XX_WDT_DEFAULT_TIMEOUT)
+                          ")");
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
+/**
+ * struct ts72xx_wdt - watchdog control structure
+ * @lock: lock that protects this structure
+ * @regval: watchdog timeout value suitable for control register
+ * @flags: flags controlling watchdog device state
+ * @control_reg: watchdog control register
+ * @feed_reg: watchdog feed register
+ * @pdev: back pointer to platform dev
+ */
+struct ts72xx_wdt {
+        struct mutex    lock;
+        int             regval;
+#define TS72XX_WDT_BUSY_FLAG            1
+#define TS72XX_WDT_EXPECT_CLOSE_FLAG    2
+        int             flags;
+        void __iomem    *control_reg;
+        void __iomem    *feed_reg;
+        struct platform_device *pdev;
+};
+struct platform_device *ts72xx_wdt_pdev;
+/*
+ * TS-72xx Watchdog supports following timeouts (value written
+ * to control register):
+ *      value   description
+ *      -------------------------
+ *      0x00    watchdog disabled
+ *      0x01    250ms
+ *      0x02    500ms
+ *      0x03    1s
+ *      0x04    reserved
+ *      0x05    2s
+ *      0x06    4s
+ *      0x07    8s
+ *
+ * Timeouts below 1s are not very usable so we don't
+ * allow them at all.
+ *
+ * We provide two functions that convert between these:
+ * timeout_to_regval() and regval_to_timeout().
+ */
+static const struct {
+        int     timeout;
+        int     regval;
+} ts72xx_wdt_map[] = {
+        { 1, 3 },
+        { 2, 5 },
+        { 4, 6 },
+        { 8, 7 },
+};
+/**
+ * timeout_to_regval() - converts given timeout to control register value
+ * @new_timeout: timeout in seconds to be converted
+ *
+ * Function converts given @new_timeout into valid value that can
+ * be programmed into watchdog control register. When conversion is
+ * not possible, function returns %-EINVAL.
+ */
+static int timeout_to_regval(int new_timeout)
+{
+        int i;
+        /* first limit it to 1 - 8 seconds */
+        new_timeout = clamp_val(new_timeout, 1, 8);
+        for (i = 0; i < ARRAY_SIZE(ts72xx_wdt_map); i++) {
+                if (ts72xx_wdt_map[i].timeout >= new_timeout)
+                        return ts72xx_wdt_map[i].regval;
+        }
+        return -EINVAL;
+}
+/**
+ * regval_to_timeout() - converts control register value to timeout
+ * @regval: control register value to be converted
+ *
+ * Function converts given @regval to timeout in seconds (1, 2, 4 or 8).
+ * If @regval cannot be converted, function returns %-EINVAL.
+ */
+static int regval_to_timeout(int regval)
+{
+        int i;
+        for (i = 0; i < ARRAY_SIZE(ts72xx_wdt_map); i++) {
+                if (ts72xx_wdt_map[i].regval == regval)
+                        return ts72xx_wdt_map[i].timeout;
+        }
+        return -EINVAL;
+}
+/**
+ * ts72xx_wdt_kick() - kick the watchdog
+ * @wdt: watchdog to be kicked
+ *
+ * Called with @wdt->lock held.
+ */
+static inline void ts72xx_wdt_kick(struct ts72xx_wdt *wdt)
+{
+        __raw_writeb(TS72XX_WDT_FEED_VAL, wdt->feed_reg);
+}
+/**
+ * ts72xx_wdt_start() - starts the watchdog timer
+ * @wdt: watchdog to be started
+ *
+ * This function programs timeout to watchdog timer
+ * and starts it.
+ *
+ * Called with @wdt->lock held.
+ */
+static void ts72xx_wdt_start(struct ts72xx_wdt *wdt)
+{
+        /*
+         * To program the wdt, it first must be "fed" and
+         * only after that (within 30 usecs) the configuration
+         * can be changed.
+         */
+        ts72xx_wdt_kick(wdt);
+        __raw_writeb((u8)wdt->regval, wdt->control_reg);
+}
+/**
+ * ts72xx_wdt_stop() - stops the watchdog timer
+ * @wdt: watchdog to be stopped
+ *
+ * Called with @wdt->lock held.
+ */
+static void ts72xx_wdt_stop(struct ts72xx_wdt *wdt)
+{
+        ts72xx_wdt_kick(wdt);
+        __raw_writeb(0, wdt->control_reg);
+}
+static int ts72xx_wdt_open(struct inode *inode, struct file *file)
+{
+        struct ts72xx_wdt *wdt = platform_get_drvdata(ts72xx_wdt_pdev);
+        int regval;
+        /*
+         * Try to convert default timeout to valid register
+         * value first.
+         */
+        regval = timeout_to_regval(timeout);
+        if (regval < 0) {
+                dev_err(&wdt->pdev->dev,
+                        "failed to convert timeout (%d) to register value\n",
+                        timeout);
+                return -EINVAL;
+        }
+        if (mutex_lock_interruptible(&wdt->lock))
+                return -ERESTARTSYS;
+        if ((wdt->flags & TS72XX_WDT_BUSY_FLAG) != 0) {
+                mutex_unlock(&wdt->lock);
+                return -EBUSY;
+        }
+        wdt->flags = TS72XX_WDT_BUSY_FLAG;
+        wdt->regval = regval;
+        file->private_data = wdt;
+        ts72xx_wdt_start(wdt);
+        mutex_unlock(&wdt->lock);
+        return nonseekable_open(inode, file);
+}
+static int ts72xx_wdt_release(struct inode *inode, struct file *file)
+{
+        struct ts72xx_wdt *wdt = file->private_data;
+        if (mutex_lock_interruptible(&wdt->lock))
+                return -ERESTARTSYS;
+        if ((wdt->flags & TS72XX_WDT_EXPECT_CLOSE_FLAG) != 0) {
+                ts72xx_wdt_stop(wdt);
+        } else {
+                dev_warn(&wdt->pdev->dev,
+                         "TS-72XX WDT device closed unexpectly. "
+                         "Watchdog timer will not stop!\n");
+                /*
+                 * Kick it one more time, to give userland some time
+                 * to recover (for example, respawning the kicker
+                 * daemon).
+                 */
+                ts72xx_wdt_kick(wdt);
+        }
+        wdt->flags = 0;
+        mutex_unlock(&wdt->lock);
+        return 0;
+}
+static ssize_t ts72xx_wdt_write(struct file *file,
+                                const char __user *data,
+                                size_t len,
+                                loff_t *ppos)
+{
+        struct ts72xx_wdt *wdt = file->private_data;
+        if (!len)
+                return 0;
+        if (mutex_lock_interruptible(&wdt->lock))
+                return -ERESTARTSYS;
+        ts72xx_wdt_kick(wdt);
+        /*
+         * Support for magic character closing. User process
+         * writes 'V' into the device, just before it is closed.
+         * This means that we know that the wdt timer can be
+         * stopped after user closes the device.
+         */
+        if (!nowayout) {
+                int i;
+                for (i = 0; i < len; i++) {
+                        char c;
+                        /* In case it was set long ago */
+                        wdt->flags &= ~TS72XX_WDT_EXPECT_CLOSE_FLAG;
+                        if (get_user(c, data + i)) {
+                                mutex_unlock(&wdt->lock);
+                                return -EFAULT;
+                        }
+                        if (c == 'V') {
+                                wdt->flags |= TS72XX_WDT_EXPECT_CLOSE_FLAG;
+                                break;
+                        }
+                }
+        }
+        mutex_unlock(&wdt->lock);
+        return len;
+}
+static const struct watchdog_info winfo = {
+        .options                = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
+                                  WDIOF_MAGICCLOSE,
+        .firmware_version       = 1,
+        .identity               = "TS-72XX WDT",
+};
+static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd,
+                             unsigned long arg)
+{
+        struct ts72xx_wdt *wdt = file->private_data;
+        void __user *argp = (void __user *)arg;
+        int __user *p = (int __user *)argp;
+        int error = 0;
+        if (mutex_lock_interruptible(&wdt->lock))
+                return -ERESTARTSYS;
+        switch (cmd) {
+        case WDIOC_GETSUPPORT:
+                error = copy_to_user(argp, &winfo, sizeof(winfo));
+                break;
+        case WDIOC_GETSTATUS:
+        case WDIOC_GETBOOTSTATUS:
+                return put_user(0, p);
+        case WDIOC_KEEPALIVE:
+                ts72xx_wdt_kick(wdt);
+                break;
+        case WDIOC_SETOPTIONS: {
+                int options;
+                if (get_user(options, p)) {
+                        error = -EFAULT;
+                        break;
+                }
+                error = -EINVAL;
+                if ((options & WDIOS_DISABLECARD) != 0) {
+                        ts72xx_wdt_stop(wdt);
+                        error = 0;
+                }
+                if ((options & WDIOS_ENABLECARD) != 0) {
+                        ts72xx_wdt_start(wdt);
+                        error = 0;
+                }
+                break;
+        }
+        case WDIOC_SETTIMEOUT: {
+                int new_timeout;
+                if (get_user(new_timeout, p)) {
+                        error = -EFAULT;
+                } else {
+                        int regval;
+                        regval = timeout_to_regval(new_timeout);
+                        if (regval < 0) {
+                                error = -EINVAL;
+                        } else {
+                                ts72xx_wdt_stop(wdt);
+                                wdt->regval = regval;
+                                ts72xx_wdt_start(wdt);
+                        }
+                }
+                if (error)
+                        break;
+                /*FALLTHROUGH*/
+        }
+        case WDIOC_GETTIMEOUT:
+                if (put_user(regval_to_timeout(wdt->regval), p))
+                        error = -EFAULT;
+                break;
+        default:
+                error = -ENOTTY;
+                break;
+        }
+        mutex_unlock(&wdt->lock);
+        return error;
+}
+static const struct file_operations ts72xx_wdt_fops = {
+        .owner          = THIS_MODULE,
+        .llseek         = no_llseek,
+        .open           = ts72xx_wdt_open,
+        .release        = ts72xx_wdt_release,
+        .write          = ts72xx_wdt_write,
+        .unlocked_ioctl = ts72xx_wdt_ioctl,
+};
+static struct miscdevice ts72xx_wdt_miscdev = {
+        .minor          = WATCHDOG_MINOR,
+        .name           = "watchdog",
+        .fops           = &ts72xx_wdt_fops,
+};
+static __devinit int ts72xx_wdt_probe(struct platform_device *pdev)
+{
+        struct ts72xx_wdt *wdt;
+        struct resource *r1, *r2;
+        int error = 0;
+        wdt = kzalloc(sizeof(struct ts72xx_wdt), GFP_KERNEL);
+        if (!wdt) {
+                dev_err(&pdev->dev, "failed to allocate memory\n");
+                return -ENOMEM;
+        }
+        r1 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!r1) {
+                dev_err(&pdev->dev, "failed to get memory resource\n");
+                error = -ENODEV;
+                goto fail;
+        }
+        r1 = request_mem_region(r1->start, resource_size(r1), pdev->name);
+        if (!r1) {
+                dev_err(&pdev->dev, "cannot request memory region\n");
+                error = -EBUSY;
+                goto fail;
+        }
+        wdt->control_reg = ioremap(r1->start, resource_size(r1));
+        if (!wdt->control_reg) {
+                dev_err(&pdev->dev, "failed to map memory\n");
+                error = -ENODEV;
+                goto fail_free_control;
+        }
+        r2 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+        if (!r2) {
+                dev_err(&pdev->dev, "failed to get memory resource\n");
+                error = -ENODEV;
+                goto fail_unmap_control;
+        }
+        r2 = request_mem_region(r2->start, resource_size(r2), pdev->name);
+        if (!r2) {
+                dev_err(&pdev->dev, "cannot request memory region\n");
+                error = -EBUSY;
+                goto fail_unmap_control;
+        }
+        wdt->feed_reg = ioremap(r2->start, resource_size(r2));
+        if (!wdt->feed_reg) {
+                dev_err(&pdev->dev, "failed to map memory\n");
+                error = -ENODEV;
+                goto fail_free_feed;
+        }
+        platform_set_drvdata(pdev, wdt);
+        ts72xx_wdt_pdev = pdev;
+        wdt->pdev = pdev;
+        mutex_init(&wdt->lock);
+        error = misc_register(&ts72xx_wdt_miscdev);
+        if (error) {
+                dev_err(&pdev->dev, "failed to register miscdev\n");
+                goto fail_unmap_feed;
+        }
+        dev_info(&pdev->dev, "TS-72xx Watchdog driver\n");
+        return 0;
+fail_unmap_feed:
+        platform_set_drvdata(pdev, NULL);
+        iounmap(wdt->feed_reg);
+fail_free_feed:
+        release_mem_region(r2->start, resource_size(r2));
+fail_unmap_control:
+        iounmap(wdt->control_reg);
+fail_free_control:
+        release_mem_region(r1->start, resource_size(r1));
+fail:
+        kfree(wdt);
+        return error;
+}
+static __devexit int ts72xx_wdt_remove(struct platform_device *pdev)
+{
+        struct ts72xx_wdt *wdt = platform_get_drvdata(pdev);
+        struct resource *res;
+        int error;
+        error = misc_deregister(&ts72xx_wdt_miscdev);
+        platform_set_drvdata(pdev, NULL);
+        iounmap(wdt->feed_reg);
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+        release_mem_region(res->start, resource_size(res));
+        iounmap(wdt->control_reg);
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        release_mem_region(res->start, resource_size(res));
+        kfree(wdt);
+        return error;
+}
+static struct platform_driver ts72xx_wdt_driver = {
+        .probe          = ts72xx_wdt_probe,
+        .remove         = __devexit_p(ts72xx_wdt_remove),
+        .driver         = {
+                .name   = "ts72xx-wdt",
+                .owner  = THIS_MODULE,
+        },
+};
+static __init int ts72xx_wdt_init(void)
+{
+        return platform_driver_register(&ts72xx_wdt_driver);
+}
+module_init(ts72xx_wdt_init);
+static __exit void ts72xx_wdt_exit(void)
+{
+        platform_driver_unregister(&ts72xx_wdt_driver);
+}
+module_exit(ts72xx_wdt_exit);
+MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
+MODULE_DESCRIPTION("TS-72xx SBC Watchdog");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ts72xx-wdt");
diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c
index d635566e9307..9e9ed7bfabcb 100644
--- a/drivers/watchdog/txx9wdt.c
+++ b/drivers/watchdog/txx9wdt.c
@@ -13,7 +13,6 @@
 #include <linux/miscdevice.h>
 #include <linux/watchdog.h>
 #include <linux/fs.h>
-#include <linux/reboot.h>
 #include <linux/init.h>
 #include <linux/uaccess.h>
 #include <linux/platform_device.h>
@@ -166,14 +165,6 @@ static long txx9wdt_ioctl(struct file *file, unsigned int cmd,
        }
 }
-static int txx9wdt_notify_sys(struct notifier_block *this, unsigned long code,
-        void *unused)
-{
-        if (code == SYS_DOWN || code == SYS_HALT)
-                txx9wdt_stop();
-        return NOTIFY_DONE;
-}
 static const struct file_operations txx9wdt_fops = {
        .owner          =       THIS_MODULE,
        .llseek         =       no_llseek,
@@ -189,10 +180,6 @@ static struct miscdevice txx9wdt_miscdev = {
        .fops   =       &txx9wdt_fops,
 };
-static struct notifier_block txx9wdt_notifier = {
-        .notifier_call = txx9wdt_notify_sys,
-};
 static int __init txx9wdt_probe(struct platform_device *dev)
 {
        struct resource *res;
@@ -221,13 +208,8 @@ static int __init txx9wdt_probe(struct platform_device *dev)
        if (!txx9wdt_reg)
                goto exit_busy;
-        ret = register_reboot_notifier(&txx9wdt_notifier);
-        if (ret)
-                goto exit;
        ret = misc_register(&txx9wdt_miscdev);
        if (ret) {
-                unregister_reboot_notifier(&txx9wdt_notifier);
                goto exit;
        }
@@ -249,14 +231,19 @@ exit:
 static int __exit txx9wdt_remove(struct platform_device *dev)
 {
        misc_deregister(&txx9wdt_miscdev);
-        unregister_reboot_notifier(&txx9wdt_notifier);
        clk_disable(txx9_imclk);
        clk_put(txx9_imclk);
        return 0;
 }
+static void txx9wdt_shutdown(struct platform_device *dev)
+{
+        txx9wdt_stop();
+}
 static struct platform_driver txx9wdt_driver = {
        .remove = __exit_p(txx9wdt_remove),
+        .shutdown = txx9wdt_shutdown,
        .driver = {
                .name = "txx9wdt",
                .owner = THIS_MODULE,
diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index f201accc4e3d..0f5288df0091 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -201,7 +201,7 @@ static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        void __user *argp = (void __user *)arg;
        int __user *p = argp;
        int new_timeout;
-        static struct watchdog_info ident = {
+        static const struct watchdog_info ident = {
                .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
                                                        WDIOF_MAGICCLOSE,
                .firmware_version = 1,
diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c
index 0560182a1d09..6e6743d1066f 100644
--- a/drivers/watchdog/w83977f_wdt.c
+++ b/drivers/watchdog/w83977f_wdt.c
@@ -371,7 +371,7 @@ static ssize_t wdt_write(struct file *file, const char __user *buf,
 *      according to their available features.
 */
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
        .firmware_version =     1,
        .identity = WATCHDOG_NAME,
diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c
index 5bfb1f2c5319..94ec22b9e66b 100644
--- a/drivers/watchdog/wdrtas.c
+++ b/drivers/watchdog/wdrtas.c
@@ -312,7 +312,7 @@ static long wdrtas_ioctl(struct file *file, unsigned int cmd,
 {
        int __user *argp = (void __user *)arg;
        int i;
-        static struct watchdog_info wdinfo = {
+        static const struct watchdog_info wdinfo = {
                .options = WDRTAS_SUPPORTED_MASK,
                .firmware_version = 0,
                .identity = "wdrtas",
diff --git a/drivers/watchdog/wdt.c b/drivers/watchdog/wdt.c
index 3bbefe9a2634..bfda2e99dd89 100644
--- a/drivers/watchdog/wdt.c
+++ b/drivers/watchdog/wdt.c
@@ -358,7 +358,7 @@ static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        int new_heartbeat;
        int status;
-        static struct watchdog_info ident = {
+        struct watchdog_info ident = {
                .options =              WDIOF_SETTIMEOUT|
                                        WDIOF_MAGICCLOSE|
                                        WDIOF_KEEPALIVEPING,
diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c
index f368dd87083a..7b22e3cdbc81 100644
--- a/drivers/watchdog/wdt_pci.c
+++ b/drivers/watchdog/wdt_pci.c
@@ -412,7 +412,7 @@ static long wdtpci_ioctl(struct file *file, unsigned int cmd,
        int new_heartbeat;
        int status;
-        static struct watchdog_info ident = {
+        struct watchdog_info ident = {
                .options =              WDIOF_SETTIMEOUT|
                                        WDIOF_MAGICCLOSE|
                                        WDIOF_KEEPALIVEPING,
diff --git a/drivers/watchdog/wm831x_wdt.c b/drivers/watchdog/wm831x_wdt.c
index 775bcd807f31..8c4b2d5bb7da 100644
--- a/drivers/watchdog/wm831x_wdt.c
+++ b/drivers/watchdog/wm831x_wdt.c
@@ -213,7 +213,7 @@ static ssize_t wm831x_wdt_write(struct file *file,
        return count;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
        .identity = "WM831x Watchdog",
 };
diff --git a/drivers/watchdog/wm8350_wdt.c b/drivers/watchdog/wm8350_wdt.c
index a2d2e8eb2282..89dd7b035295 100644
--- a/drivers/watchdog/wm8350_wdt.c
+++ b/drivers/watchdog/wm8350_wdt.c
@@ -177,7 +177,7 @@ static ssize_t wm8350_wdt_write(struct file *file,
        return count;
 }
-static struct watchdog_info ident = {
+static const struct watchdog_info ident = {
        .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
        .identity = "WM8350 Watchdog",
 };
diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c
index ae5cb05a1a1c..bb71ab2336c8 100644
--- a/drivers/xen/sys-hypervisor.c
+++ b/drivers/xen/sys-hypervisor.c
@@ -426,7 +426,7 @@ static ssize_t hyp_sysfs_store(struct kobject *kobj,
        return 0;
 }
-static struct sysfs_ops hyp_sysfs_ops = {
+static const struct sysfs_ops hyp_sysfs_ops = {
        .show = hyp_sysfs_show,
        .store = hyp_sysfs_store,
 };
author	Paul Mundt <lethal@linux-sh.org>	2010-03-10 02:41:57 -0500
committer	Paul Mundt <lethal@linux-sh.org>	2010-03-10 02:41:57 -0500
commit	d28c145debb1bd53cde63ac8bccc192e3e00067e (patch)
tree	87fb1d66cab7689aa662ebd0337b39ff1bf6f433 /drivers
parent	2e733b3f84fa9c2ae60513c5f7b56d599ed2ae02 (diff)
parent	ec0ffe2ee0e0fb9da4409d86bfd72636450f32df (diff)