Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits)
  arm: fix up some samsung merge sysdev conversion problems
  firmware: Fix an oops on reading fw_priv->fw in sysfs loading file
  Drivers:hv: Fix a bug in vmbus_driver_unregister()
  driver core: remove __must_check from device_create_file
  debugfs: add missing #ifdef HAS_IOMEM
  arm: time.h: remove device.h #include
  driver-core: remove sysdev.h usage.
  clockevents: remove sysdev.h
  arm: convert sysdev_class to a regular subsystem
  arm: leds: convert sysdev_class to a regular subsystem
  kobject: remove kset_find_obj_hinted()
  m86k: gpio - convert sysdev_class to a regular subsystem
  mips: txx9_sram - convert sysdev_class to a regular subsystem
  mips: 7segled - convert sysdev_class to a regular subsystem
  sh: dma - convert sysdev_class to a regular subsystem
  sh: intc - convert sysdev_class to a regular subsystem
  power: suspend - convert sysdev_class to a regular subsystem
  power: qe_ic - convert sysdev_class to a regular subsystem
  power: cmm - convert sysdev_class to a regular subsystem
  s390: time - convert sysdev_class to a regular subsystem
  ...

Fix up conflicts with 'struct sysdev' removal from various platform
drivers that got changed:
 - arch/arm/mach-exynos/cpu.c
 - arch/arm/mach-exynos/irq-eint.c
 - arch/arm/mach-s3c64xx/common.c
 - arch/arm/mach-s3c64xx/cpu.c
 - arch/arm/mach-s5p64x0/cpu.c
 - arch/arm/mach-s5pv210/common.c
 - arch/arm/plat-samsung/include/plat/cpu.h
 - arch/powerpc/kernel/sysfs.c
and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h

4 files changed, 86 insertions, 87 deletions

diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c
index 3cafc306b971..c638535753df 100644
--- a/arch/powerpc/platforms/pseries/cmm.c
+++ b/arch/powerpc/platforms/pseries/cmm.c
@@ -33,7 +33,7 @@
 #include <linux/sched.h>
 #include <linux/stringify.h>
 #include <linux/swap.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <asm/firmware.h>
 #include <asm/hvcall.h>
 #include <asm/mmu.h>
@@ -65,7 +65,7 @@ static unsigned int oom_kb = CMM_OOM_KB;
 static unsigned int cmm_debug = CMM_DEBUG;
 static unsigned int cmm_disabled = CMM_DISABLE;
 static unsigned long min_mem_mb = CMM_MIN_MEM_MB;
-static struct sys_device cmm_sysdev;
+static struct device cmm_dev;
 
 MODULE_AUTHOR("Brian King <brking@linux.vnet.ibm.com>");
 MODULE_DESCRIPTION("IBM System p Collaborative Memory Manager");
@@ -347,25 +347,25 @@ static int cmm_thread(void *dummy)
 }
 
 #define CMM_SHOW(name, format, args...)                 \
-        static ssize_t show_##name(struct sys_device *dev,      \
-                                   struct sysdev_attribute *attr,       \
+        static ssize_t show_##name(struct device *dev,  \
+                                   struct device_attribute *attr,       \
                                    char *buf)                   \
         {                                                       \
                 return sprintf(buf, format, ##args);            \
         }                                                       \
-        static SYSDEV_ATTR(name, S_IRUGO, show_##name, NULL)
+        static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
 
 CMM_SHOW(loaned_kb, "%lu\n", PAGES2KB(loaned_pages));
 CMM_SHOW(loaned_target_kb, "%lu\n", PAGES2KB(loaned_pages_target));
 
-static ssize_t show_oom_pages(struct sys_device *dev,
-                              struct sysdev_attribute *attr, char *buf)
+static ssize_t show_oom_pages(struct device *dev,
+                              struct device_attribute *attr, char *buf)
 {
         return sprintf(buf, "%lu\n", PAGES2KB(oom_freed_pages));
 }
 
-static ssize_t store_oom_pages(struct sys_device *dev,
-                               struct sysdev_attribute *attr,
+static ssize_t store_oom_pages(struct device *dev,
+                               struct device_attribute *attr,
                                const char *buf, size_t count)
 {
         unsigned long val = simple_strtoul (buf, NULL, 10);
@@ -379,17 +379,18 @@ static ssize_t store_oom_pages(struct sys_device *dev,
         return count;
 }
 
-static SYSDEV_ATTR(oom_freed_kb, S_IWUSR| S_IRUGO,
+static DEVICE_ATTR(oom_freed_kb, S_IWUSR | S_IRUGO,
                    show_oom_pages, store_oom_pages);
 
-static struct sysdev_attribute *cmm_attrs[] = {
-        &attr_loaned_kb,
-        &attr_loaned_target_kb,
-        &attr_oom_freed_kb,
+static struct device_attribute *cmm_attrs[] = {
+        &dev_attr_loaned_kb,
+        &dev_attr_loaned_target_kb,
+        &dev_attr_oom_freed_kb,
 };
 
-static struct sysdev_class cmm_sysdev_class = {
+static struct bus_type cmm_subsys = {
         .name = "cmm",
+        .dev_name = "cmm",
 };
 
 /**
@@ -398,21 +399,21 @@ static struct sysdev_class cmm_sysdev_class = {
  * Return value:
  *      0 on success / other on failure
  **/
-static int cmm_sysfs_register(struct sys_device *sysdev)
+static int cmm_sysfs_register(struct device *dev)
 {
         int i, rc;
 
-        if ((rc = sysdev_class_register(&cmm_sysdev_class)))
+        if ((rc = subsys_system_register(&cmm_subsys, NULL)))
                 return rc;
 
-        sysdev->id = 0;
-        sysdev->cls = &cmm_sysdev_class;
+        dev->id = 0;
+        dev->bus = &cmm_subsys;
 
-        if ((rc = sysdev_register(sysdev)))
-                goto class_unregister;
+        if ((rc = device_register(dev)))
+                goto subsys_unregister;
 
         for (i = 0; i < ARRAY_SIZE(cmm_attrs); i++) {
-                if ((rc = sysdev_create_file(sysdev, cmm_attrs[i])))
+                if ((rc = device_create_file(dev, cmm_attrs[i])))
                         goto fail;
         }
 
@@ -420,10 +421,10 @@ static int cmm_sysfs_register(struct sys_device *sysdev)
 
 fail:
         while (--i >= 0)
-                sysdev_remove_file(sysdev, cmm_attrs[i]);
-        sysdev_unregister(sysdev);
-class_unregister:
-        sysdev_class_unregister(&cmm_sysdev_class);
+                device_remove_file(dev, cmm_attrs[i]);
+        device_unregister(dev);
+subsys_unregister:
+        bus_unregister(&cmm_subsys);
         return rc;
 }
 
@@ -431,14 +432,14 @@ class_unregister:
  * cmm_unregister_sysfs - Unregister from sysfs
  *
  **/
-static void cmm_unregister_sysfs(struct sys_device *sysdev)
+static void cmm_unregister_sysfs(struct device *dev)
 {
         int i;
 
         for (i = 0; i < ARRAY_SIZE(cmm_attrs); i++)
-                sysdev_remove_file(sysdev, cmm_attrs[i]);
-        sysdev_unregister(sysdev);
-        sysdev_class_unregister(&cmm_sysdev_class);
+                device_remove_file(dev, cmm_attrs[i]);
+        device_unregister(dev);
+        bus_unregister(&cmm_subsys);
 }
 
 /**
@@ -657,7 +658,7 @@ static int cmm_init(void)
         if ((rc = register_reboot_notifier(&cmm_reboot_nb)))
                 goto out_oom_notifier;
 
-        if ((rc = cmm_sysfs_register(&cmm_sysdev)))
+        if ((rc = cmm_sysfs_register(&cmm_dev)))
                 goto out_reboot_notifier;
 
         if (register_memory_notifier(&cmm_mem_nb) ||
@@ -678,7 +679,7 @@ static int cmm_init(void)
 out_unregister_notifier:
         unregister_memory_notifier(&cmm_mem_nb);
         unregister_memory_isolate_notifier(&cmm_mem_isolate_nb);
-        cmm_unregister_sysfs(&cmm_sysdev);
+        cmm_unregister_sysfs(&cmm_dev);
 out_reboot_notifier:
         unregister_reboot_notifier(&cmm_reboot_nb);
 out_oom_notifier:
@@ -701,7 +702,7 @@ static void cmm_exit(void)
         unregister_memory_notifier(&cmm_mem_nb);
         unregister_memory_isolate_notifier(&cmm_mem_isolate_nb);
         cmm_free_pages(loaned_pages);
-        cmm_unregister_sysfs(&cmm_sysdev);
+        cmm_unregister_sysfs(&cmm_dev);
 }
 
 /**
diff --git a/arch/powerpc/platforms/pseries/pseries_energy.c b/arch/powerpc/platforms/pseries/pseries_energy.c
index c8b3c69fe891..af281dce510a 100644
--- a/arch/powerpc/platforms/pseries/pseries_energy.c
+++ b/arch/powerpc/platforms/pseries/pseries_energy.c
@@ -15,7 +15,7 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/seq_file.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/cpu.h>
 #include <linux/of.h>
 #include <asm/cputhreads.h>
@@ -184,7 +184,7 @@ static ssize_t get_best_energy_list(char *page, int activate)
         return s-page;
 }
 
-static ssize_t get_best_energy_data(struct sys_device *dev,
+static ssize_t get_best_energy_data(struct device *dev,
                                         char *page, int activate)
 {
         int rc;
@@ -207,26 +207,26 @@ static ssize_t get_best_energy_data(struct sys_device *dev,
 
 /* Wrapper functions */
 
-static ssize_t cpu_activate_hint_list_show(struct sysdev_class *class,
-                        struct sysdev_class_attribute *attr, char *page)
+static ssize_t cpu_activate_hint_list_show(struct device *dev,
+                        struct device_attribute *attr, char *page)
 {
         return get_best_energy_list(page, 1);
 }
 
-static ssize_t cpu_deactivate_hint_list_show(struct sysdev_class *class,
-                        struct sysdev_class_attribute *attr, char *page)
+static ssize_t cpu_deactivate_hint_list_show(struct device *dev,
+                        struct device_attribute *attr, char *page)
 {
         return get_best_energy_list(page, 0);
 }
 
-static ssize_t percpu_activate_hint_show(struct sys_device *dev,
-                        struct sysdev_attribute *attr, char *page)
+static ssize_t percpu_activate_hint_show(struct device *dev,
+                        struct device_attribute *attr, char *page)
 {
         return get_best_energy_data(dev, page, 1);
 }
 
-static ssize_t percpu_deactivate_hint_show(struct sys_device *dev,
-                        struct sysdev_attribute *attr, char *page)
+static ssize_t percpu_deactivate_hint_show(struct device *dev,
+                        struct device_attribute *attr, char *page)
 {
         return get_best_energy_data(dev, page, 0);
 }
@@ -241,48 +241,48 @@ static ssize_t percpu_deactivate_hint_show(struct sys_device *dev,
  *      Per-cpu value of the hint
  */
 
-struct sysdev_class_attribute attr_cpu_activate_hint_list =
-                _SYSDEV_CLASS_ATTR(pseries_activate_hint_list, 0444,
+struct device_attribute attr_cpu_activate_hint_list =
+                __ATTR(pseries_activate_hint_list, 0444,
                 cpu_activate_hint_list_show, NULL);
 
-struct sysdev_class_attribute attr_cpu_deactivate_hint_list =
-                _SYSDEV_CLASS_ATTR(pseries_deactivate_hint_list, 0444,
+struct device_attribute attr_cpu_deactivate_hint_list =
+                __ATTR(pseries_deactivate_hint_list, 0444,
                 cpu_deactivate_hint_list_show, NULL);
 
-struct sysdev_attribute attr_percpu_activate_hint =
-                _SYSDEV_ATTR(pseries_activate_hint, 0444,
+struct device_attribute attr_percpu_activate_hint =
+                __ATTR(pseries_activate_hint, 0444,
                 percpu_activate_hint_show, NULL);
 
-struct sysdev_attribute attr_percpu_deactivate_hint =
-                _SYSDEV_ATTR(pseries_deactivate_hint, 0444,
+struct device_attribute attr_percpu_deactivate_hint =
+                __ATTR(pseries_deactivate_hint, 0444,
                 percpu_deactivate_hint_show, NULL);
 
 static int __init pseries_energy_init(void)
 {
         int cpu, err;
-        struct sys_device *cpu_sys_dev;
+        struct device *cpu_dev;
 
         if (!check_for_h_best_energy()) {
                 printk(KERN_INFO "Hypercall H_BEST_ENERGY not supported\n");
                 return 0;
         }
         /* Create the sysfs files */
-        err = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
-                                &attr_cpu_activate_hint_list.attr);
+        err = device_create_file(cpu_subsys.dev_root,
+                                &attr_cpu_activate_hint_list);
         if (!err)
-                err = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
-                                &attr_cpu_deactivate_hint_list.attr);
+                err = device_create_file(cpu_subsys.dev_root,
+                                &attr_cpu_deactivate_hint_list);
 
         if (err)
                 return err;
         for_each_possible_cpu(cpu) {
-                cpu_sys_dev = get_cpu_sysdev(cpu);
-                err = sysfs_create_file(&cpu_sys_dev->kobj,
-                                &attr_percpu_activate_hint.attr);
+                cpu_dev = get_cpu_device(cpu);
+                err = device_create_file(cpu_dev,
+                                &attr_percpu_activate_hint);
                 if (err)
                         break;
-                err = sysfs_create_file(&cpu_sys_dev->kobj,
-                                &attr_percpu_deactivate_hint.attr);
+                err = device_create_file(cpu_dev,
+                                &attr_percpu_deactivate_hint);
                 if (err)
                         break;
         }
@@ -298,23 +298,20 @@ static int __init pseries_energy_init(void)
 static void __exit pseries_energy_cleanup(void)
 {
         int cpu;
-        struct sys_device *cpu_sys_dev;
+        struct device *cpu_dev;
 
         if (!sysfs_entries)
                 return;
 
         /* Remove the sysfs files */
-        sysfs_remove_file(&cpu_sysdev_class.kset.kobj,
-                                &attr_cpu_activate_hint_list.attr);
-
-        sysfs_remove_file(&cpu_sysdev_class.kset.kobj,
-                                &attr_cpu_deactivate_hint_list.attr);
+        device_remove_file(cpu_subsys.dev_root, &attr_cpu_activate_hint_list);
+        device_remove_file(cpu_subsys.dev_root, &attr_cpu_deactivate_hint_list);
 
         for_each_possible_cpu(cpu) {
-                cpu_sys_dev = get_cpu_sysdev(cpu);
-                sysfs_remove_file(&cpu_sys_dev->kobj,
+                cpu_dev = get_cpu_device(cpu);
+                sysfs_remove_file(&cpu_dev->kobj,
                                 &attr_percpu_activate_hint.attr);
-                sysfs_remove_file(&cpu_sys_dev->kobj,
+                sysfs_remove_file(&cpu_dev->kobj,
                                 &attr_percpu_deactivate_hint.attr);
         }
 }
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index bbc3c42f6730..eadba9521a35 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -22,7 +22,7 @@
 #include <linux/spinlock.h>
 #include <linux/cache.h>
 #include <linux/err.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/cpu.h>
 
 #include <asm/ptrace.h>
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index d3de0849f296..b84a8b2238dd 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -26,7 +26,7 @@
 #include <asm/rtas.h>
 
 static u64 stream_id;
-static struct sys_device suspend_sysdev;
+static struct device suspend_dev;
 static DECLARE_COMPLETION(suspend_work);
 static struct rtas_suspend_me_data suspend_data;
 static atomic_t suspending;
@@ -110,8 +110,8 @@ static int pseries_prepare_late(void)
 
 /**
  * store_hibernate - Initiate partition hibernation
- * @classdev:   sysdev class struct
- * @attr:               class device attribute struct
+ * @dev:                subsys root device
+ * @attr:               device attribute struct
  * @buf:                buffer
  * @count:              buffer size
  *
@@ -121,8 +121,8 @@ static int pseries_prepare_late(void)
  * Return value:
  *      number of bytes printed to buffer / other on failure
  **/
-static ssize_t store_hibernate(struct sysdev_class *classdev,
-                               struct sysdev_class_attribute *attr,
+static ssize_t store_hibernate(struct device *dev,
+                               struct device_attribute *attr,
                                const char *buf, size_t count)
 {
         int rc;
@@ -148,10 +148,11 @@ static ssize_t store_hibernate(struct sysdev_class *classdev,
         return rc;
 }
 
-static SYSDEV_CLASS_ATTR(hibernate, S_IWUSR, NULL, store_hibernate);
+static DEVICE_ATTR(hibernate, S_IWUSR, NULL, store_hibernate);
 
-static struct sysdev_class suspend_sysdev_class = {
+static struct bus_type suspend_subsys = {
         .name = "power",
+        .dev_name = "power",
 };
 
 static const struct platform_suspend_ops pseries_suspend_ops = {
@@ -167,23 +168,23 @@ static const struct platform_suspend_ops pseries_suspend_ops = {
  * Return value:
  *      0 on success / other on failure
  **/
-static int pseries_suspend_sysfs_register(struct sys_device *sysdev)
+static int pseries_suspend_sysfs_register(struct device *dev)
 {
         int rc;
 
-        if ((rc = sysdev_class_register(&suspend_sysdev_class)))
+        if ((rc = subsys_system_register(&suspend_subsys, NULL)))
                 return rc;
 
-        sysdev->id = 0;
-        sysdev->cls = &suspend_sysdev_class;
+        dev->id = 0;
+        dev->bus = &suspend_subsys;
 
-        if ((rc = sysdev_class_create_file(&suspend_sysdev_class, &attr_hibernate)))
-                goto class_unregister;
+        if ((rc = device_create_file(suspend_subsys.dev_root, &dev_attr_hibernate)))
+                goto subsys_unregister;
 
         return 0;
 
-class_unregister:
-        sysdev_class_unregister(&suspend_sysdev_class);
+subsys_unregister:
+        bus_unregister(&suspend_subsys);
         return rc;
 }
 
@@ -204,7 +205,7 @@ static int __init pseries_suspend_init(void)
         if (suspend_data.token == RTAS_UNKNOWN_SERVICE)
                 return 0;
 
-        if ((rc = pseries_suspend_sysfs_register(&suspend_sysdev)))
+        if ((rc = pseries_suspend_sysfs_register(&suspend_dev)))
                 return rc;
 
         ppc_md.suspend_disable_cpu = pseries_suspend_cpu;