121 files changed, 875 insertions, 812 deletions

diff --git a/Documentation/DocBook/debugobjects.tmpl b/Documentation/DocBook/debugobjects.tmpl
index 7f5f218015f..08ff908aa7a 100644
--- a/Documentation/DocBook/debugobjects.tmpl
+++ b/Documentation/DocBook/debugobjects.tmpl
@@ -106,7 +106,7 @@
       number of errors are printk'ed including a full stack trace.
     </para>
     <para>
-      The statistics are available via debugfs/debug_objects/stats.
+      The statistics are available via /sys/kernel/debug/debug_objects/stats.
       They provide information about the number of warnings and the
       number of successful fixups along with information about the
       usage of the internal tracking objects and the state of the
diff --git a/Documentation/cdrom/packet-writing.txt b/Documentation/cdrom/packet-writing.txt
index cf1f8126991..1c407778c8b 100644
--- a/Documentation/cdrom/packet-writing.txt
+++ b/Documentation/cdrom/packet-writing.txt
@@ -117,7 +117,7 @@ Using the pktcdvd debugfs interface
 
 To read pktcdvd device infos in human readable form, do:
 
-        # cat /debug/pktcdvd/pktcdvd[0-7]/info
+        # cat /sys/kernel/debug/pktcdvd/pktcdvd[0-7]/info
 
 For a description of the debugfs interface look into the file:
 
diff --git a/Documentation/driver-model/device.txt b/Documentation/driver-model/device.txt
index a7cbfff40d0..a124f3126b0 100644
--- a/Documentation/driver-model/device.txt
+++ b/Documentation/driver-model/device.txt
@@ -162,3 +162,35 @@ device_remove_file(dev,&dev_attr_power);
 
 The file name will be 'power' with a mode of 0644 (-rw-r--r--).
 
+Word of warning:  While the kernel allows device_create_file() and
+device_remove_file() to be called on a device at any time, userspace has
+strict expectations on when attributes get created.  When a new device is
+registered in the kernel, a uevent is generated to notify userspace (like
+udev) that a new device is available.  If attributes are added after the
+device is registered, then userspace won't get notified and userspace will
+not know about the new attributes.
+
+This is important for device driver that need to publish additional
+attributes for a device at driver probe time.  If the device driver simply
+calls device_create_file() on the device structure passed to it, then
+userspace will never be notified of the new attributes.  Instead, it should
+probably use class_create() and class->dev_attrs to set up a list of
+desired attributes in the modules_init function, and then in the .probe()
+hook, and then use device_create() to create a new device as a child
+of the probed device.  The new device will generate a new uevent and
+properly advertise the new attributes to userspace.
+
+For example, if a driver wanted to add the following attributes:
+struct device_attribute mydriver_attribs[] = {
+        __ATTR(port_count, 0444, port_count_show),
+        __ATTR(serial_number, 0444, serial_number_show),
+        NULL
+};
+
+Then in the module init function is would do:
+        mydriver_class = class_create(THIS_MODULE, "my_attrs");
+        mydriver_class.dev_attr = mydriver_attribs;
+
+And assuming 'dev' is the struct device passed into the probe hook, the driver
+probe function would do something like:
+        create_device(&mydriver_class, dev, chrdev, &private_data, "my_name");
diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt
index 4bc374a1434..07930564079 100644
--- a/Documentation/fault-injection/fault-injection.txt
+++ b/Documentation/fault-injection/fault-injection.txt
@@ -29,16 +29,16 @@ o debugfs entries
 fault-inject-debugfs kernel module provides some debugfs entries for runtime
 configuration of fault-injection capabilities.
 
-- /debug/fail*/probability:
+- /sys/kernel/debug/fail*/probability:
 
         likelihood of failure injection, in percent.
         Format: <percent>
 
         Note that one-failure-per-hundred is a very high error rate
         for some testcases.  Consider setting probability=100 and configure
-        /debug/fail*/interval for such testcases.
+        /sys/kernel/debug/fail*/interval for such testcases.
 
-- /debug/fail*/interval:
+- /sys/kernel/debug/fail*/interval:
 
         specifies the interval between failures, for calls to
         should_fail() that pass all the other tests.
@@ -46,18 +46,18 @@ configuration of fault-injection capabilities.
         Note that if you enable this, by setting interval>1, you will
         probably want to set probability=100.
 
-- /debug/fail*/times:
+- /sys/kernel/debug/fail*/times:
 
         specifies how many times failures may happen at most.
         A value of -1 means "no limit".
 
-- /debug/fail*/space:
+- /sys/kernel/debug/fail*/space:
 
         specifies an initial resource "budget", decremented by "size"
         on each call to should_fail(,size).  Failure injection is
         suppressed until "space" reaches zero.
 
-- /debug/fail*/verbose
+- /sys/kernel/debug/fail*/verbose
 
         Format: { 0 | 1 | 2 }
         specifies the verbosity of the messages when failure is
@@ -65,17 +65,17 @@ configuration of fault-injection capabilities.
         log line per failure; '2' will print a call trace too -- useful
         to debug the problems revealed by fault injection.
 
-- /debug/fail*/task-filter:
+- /sys/kernel/debug/fail*/task-filter:
 
         Format: { 'Y' | 'N' }
         A value of 'N' disables filtering by process (default).
         Any positive value limits failures to only processes indicated by
         /proc/<pid>/make-it-fail==1.
 
-- /debug/fail*/require-start:
-- /debug/fail*/require-end:
-- /debug/fail*/reject-start:
-- /debug/fail*/reject-end:
+- /sys/kernel/debug/fail*/require-start:
+- /sys/kernel/debug/fail*/require-end:
+- /sys/kernel/debug/fail*/reject-start:
+- /sys/kernel/debug/fail*/reject-end:
 
         specifies the range of virtual addresses tested during
         stacktrace walking.  Failure is injected only if some caller
@@ -84,26 +84,26 @@ configuration of fault-injection capabilities.
         Default required range is [0,ULONG_MAX) (whole of virtual address space).
         Default rejected range is [0,0).
 
-- /debug/fail*/stacktrace-depth:
+- /sys/kernel/debug/fail*/stacktrace-depth:
 
         specifies the maximum stacktrace depth walked during search
         for a caller within [require-start,require-end) OR
         [reject-start,reject-end).
 
-- /debug/fail_page_alloc/ignore-gfp-highmem:
+- /sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem:
 
         Format: { 'Y' | 'N' }
         default is 'N', setting it to 'Y' won't inject failures into
         highmem/user allocations.
 
-- /debug/failslab/ignore-gfp-wait:
-- /debug/fail_page_alloc/ignore-gfp-wait:
+- /sys/kernel/debug/failslab/ignore-gfp-wait:
+- /sys/kernel/debug/fail_page_alloc/ignore-gfp-wait:
 
         Format: { 'Y' | 'N' }
         default is 'N', setting it to 'Y' will inject failures
         only into non-sleep allocations (GFP_ATOMIC allocations).
 
-- /debug/fail_page_alloc/min-order:
+- /sys/kernel/debug/fail_page_alloc/min-order:
 
         specifies the minimum page allocation order to be injected
         failures.
@@ -166,13 +166,13 @@ o Inject slab allocation failures into module init/exit code
 #!/bin/bash
 
 FAILTYPE=failslab
-echo Y > /debug/$FAILTYPE/task-filter
-echo 10 > /debug/$FAILTYPE/probability
-echo 100 > /debug/$FAILTYPE/interval
-echo -1 > /debug/$FAILTYPE/times
-echo 0 > /debug/$FAILTYPE/space
-echo 2 > /debug/$FAILTYPE/verbose
-echo 1 > /debug/$FAILTYPE/ignore-gfp-wait
+echo Y > /sys/kernel/debug/$FAILTYPE/task-filter
+echo 10 > /sys/kernel/debug/$FAILTYPE/probability
+echo 100 > /sys/kernel/debug/$FAILTYPE/interval
+echo -1 > /sys/kernel/debug/$FAILTYPE/times
+echo 0 > /sys/kernel/debug/$FAILTYPE/space
+echo 2 > /sys/kernel/debug/$FAILTYPE/verbose
+echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-wait
 
 faulty_system()
 {
@@ -217,20 +217,20 @@ then
         exit 1
 fi
 
-cat /sys/module/$module/sections/.text > /debug/$FAILTYPE/require-start
-cat /sys/module/$module/sections/.data > /debug/$FAILTYPE/require-end
+cat /sys/module/$module/sections/.text > /sys/kernel/debug/$FAILTYPE/require-start
+cat /sys/module/$module/sections/.data > /sys/kernel/debug/$FAILTYPE/require-end
 
-echo N > /debug/$FAILTYPE/task-filter
-echo 10 > /debug/$FAILTYPE/probability
-echo 100 > /debug/$FAILTYPE/interval
-echo -1 > /debug/$FAILTYPE/times
-echo 0 > /debug/$FAILTYPE/space
-echo 2 > /debug/$FAILTYPE/verbose
-echo 1 > /debug/$FAILTYPE/ignore-gfp-wait
-echo 1 > /debug/$FAILTYPE/ignore-gfp-highmem
-echo 10 > /debug/$FAILTYPE/stacktrace-depth
+echo N > /sys/kernel/debug/$FAILTYPE/task-filter
+echo 10 > /sys/kernel/debug/$FAILTYPE/probability
+echo 100 > /sys/kernel/debug/$FAILTYPE/interval
+echo -1 > /sys/kernel/debug/$FAILTYPE/times
+echo 0 > /sys/kernel/debug/$FAILTYPE/space
+echo 2 > /sys/kernel/debug/$FAILTYPE/verbose
+echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-wait
+echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-highmem
+echo 10 > /sys/kernel/debug/$FAILTYPE/stacktrace-depth
 
-trap "echo 0 > /debug/$FAILTYPE/probability" SIGINT SIGTERM EXIT
+trap "echo 0 > /sys/kernel/debug/$FAILTYPE/probability" SIGINT SIGTERM EXIT
 
 echo "Injecting errors into the module $module... (interrupt to stop)"
 sleep 1000000
diff --git a/Documentation/firmware_class/README b/Documentation/firmware_class/README
index c3480aa66ba..7eceaff63f5 100644
--- a/Documentation/firmware_class/README
+++ b/Documentation/firmware_class/README
@@ -77,7 +77,8 @@
    seconds for the whole load operation.
 
  - request_firmware_nowait() is also provided for convenience in
-   non-user contexts.
+   user contexts to request firmware asynchronously, but can't be called
+   in atomic contexts.
 
 
  about in-kernel persistence:
diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 1e7a769a10f..053037a1fe6 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -507,9 +507,9 @@ http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
 Appendix A: The kprobes debugfs interface
 
 With recent kernels (> 2.6.20) the list of registered kprobes is visible
-under the /debug/kprobes/ directory (assuming debugfs is mounted at /debug).
+under the /sys/kernel/debug/kprobes/ directory (assuming debugfs is mounted at //sys/kernel/debug).
 
-/debug/kprobes/list: Lists all registered probes on the system
+/sys/kernel/debug/kprobes/list: Lists all registered probes on the system
 
 c015d71a  k  vfs_read+0x0
 c011a316  j  do_fork+0x0
@@ -525,7 +525,7 @@ virtual addresses that correspond to modules that've been unloaded),
 such probes are marked with [GONE]. If the probe is temporarily disabled,
 such probes are marked with [DISABLED].
 
-/debug/kprobes/enabled: Turn kprobes ON/OFF forcibly.
+/sys/kernel/debug/kprobes/enabled: Turn kprobes ON/OFF forcibly.
 
 Provides a knob to globally and forcibly turn registered kprobes ON or OFF.
 By default, all kprobes are enabled. By echoing "0" to this file, all
diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index 7bd27f0e288..a39b3c749de 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -7,7 +7,6 @@ Copyright 2008 Red Hat Inc.
                (dual licensed under the GPL v2)
 Reviewers:   Elias Oltmanns, Randy Dunlap, Andrew Morton,
              John Kacur, and David Teigland.
-
 Written for: 2.6.28-rc2
 
 Introduction
@@ -33,13 +32,26 @@ The File System
 Ftrace uses the debugfs file system to hold the control files as
 well as the files to display output.
 
-To mount the debugfs system:
+When debugfs is configured into the kernel (which selecting any ftrace
+option will do) the directory /sys/kernel/debug will be created. To mount
+this directory, you can add to your /etc/fstab file:
+
+ debugfs       /sys/kernel/debug          debugfs defaults        0       0
+
+Or you can mount it at run time with:
+
+ mount -t debugfs nodev /sys/kernel/debug
 
-  # mkdir /debug
-  # mount -t debugfs nodev /debug
+For quicker access to that directory you may want to make a soft link to
+it:
 
-( Note: it is more common to mount at /sys/kernel/debug, but for
-  simplicity this document will use /debug)
+ ln -s /sys/kernel/debug /debug
+
+Any selected ftrace option will also create a directory called tracing
+within the debugfs. The rest of the document will assume that you are in
+the ftrace directory (cd /sys/kernel/debug/tracing) and will only concentrate
+on the files within that directory and not distract from the content with
+the extended "/sys/kernel/debug/tracing" path name.
 
 That's it! (assuming that you have ftrace configured into your kernel)
 
@@ -389,18 +401,18 @@ trace_options
 The trace_options file is used to control what gets printed in
 the trace output. To see what is available, simply cat the file:
 
-  cat /debug/tracing/trace_options
+  cat trace_options
   print-parent nosym-offset nosym-addr noverbose noraw nohex nobin \
   noblock nostacktrace nosched-tree nouserstacktrace nosym-userobj
 
 To disable one of the options, echo in the option prepended with
 "no".
 
-  echo noprint-parent > /debug/tracing/trace_options
+  echo noprint-parent > trace_options
 
 To enable an option, leave off the "no".
 
-  echo sym-offset > /debug/tracing/trace_options
+  echo sym-offset > trace_options
 
 Here are the available options:
 
@@ -476,11 +488,11 @@ sched_switch
 This tracer simply records schedule switches. Here is an example
 of how to use it.
 
- # echo sched_switch > /debug/tracing/current_tracer
- # echo 1 > /debug/tracing/tracing_enabled
+ # echo sched_switch > current_tracer
+ # echo 1 > tracing_enabled
  # sleep 1
- # echo 0 > /debug/tracing/tracing_enabled
- # cat /debug/tracing/trace
+ # echo 0 > tracing_enabled
+ # cat trace
 
 # tracer: sched_switch
 #
@@ -583,13 +595,13 @@ new trace is saved.
 To reset the maximum, echo 0 into tracing_max_latency. Here is
 an example:
 
- # echo irqsoff > /debug/tracing/current_tracer
- # echo 0 > /debug/tracing/tracing_max_latency
- # echo 1 > /debug/tracing/tracing_enabled
+ # echo irqsoff > current_tracer
+ # echo 0 > tracing_max_latency
+ # echo 1 > tracing_enabled
  # ls -ltr
  [...]
- # echo 0 > /debug/tracing/tracing_enabled
- # cat /debug/tracing/latency_trace
+ # echo 0 > tracing_enabled
+ # cat latency_trace
 # tracer: irqsoff
 #
 irqsoff latency trace v1.1.5 on 2.6.26
@@ -690,13 +702,13 @@ Like the irqsoff tracer, it records the maximum latency for
 which preemption was disabled. The control of preemptoff tracer
 is much like the irqsoff tracer.
 
- # echo preemptoff > /debug/tracing/current_tracer
- # echo 0 > /debug/tracing/tracing_max_latency
- # echo 1 > /debug/tracing/tracing_enabled
+ # echo preemptoff > current_tracer
+ # echo 0 > tracing_max_latency
+ # echo 1 > tracing_enabled
  # ls -ltr
  [...]
- # echo 0 > /debug/tracing/tracing_enabled
- # cat /debug/tracing/latency_trace
+ # echo 0 > tracing_enabled
+ # cat latency_trace
 # tracer: preemptoff
 #
 preemptoff latency trace v1.1.5 on 2.6.26-rc8
@@ -837,13 +849,13 @@ tracer.
 Again, using this trace is much like the irqsoff and preemptoff
 tracers.
 
- # echo preemptirqsoff > /debug/tracing/current_tracer
- # echo 0 > /debug/tracing/tracing_max_latency
- # echo 1 > /debug/tracing/tracing_enabled
+ # echo preemptirqsoff > current_tracer
+ # echo 0 > tracing_max_latency
+ # echo 1 > tracing_enabled
  # ls -ltr
  [...]
- # echo 0 > /debug/tracing/tracing_enabled
- # cat /debug/tracing/latency_trace
+ # echo 0 > tracing_enabled
+ # cat latency_trace
 # tracer: preemptirqsoff
 #
 preemptirqsoff latency trace v1.1.5 on 2.6.26-rc8
@@ -999,12 +1011,12 @@ slightly differently than we did with the previous tracers.
 Instead of performing an 'ls', we will run 'sleep 1' under
 'chrt' which changes the priority of the task.
 
- # echo wakeup > /debug/tracing/current_tracer
- # echo 0 > /debug/tracing/tracing_max_latency
- # echo 1 > /debug/tracing/tracing_enabled
+ # echo wakeup > current_tracer
+ # echo 0 > tracing_max_latency
+ # echo 1 > tracing_enabled
  # chrt -f 5 sleep 1
- # echo 0 > /debug/tracing/tracing_enabled
- # cat /debug/tracing/latency_trace
+ # echo 0 > tracing_enabled
+ # cat latency_trace
 # tracer: wakeup
 #
 wakeup latency trace v1.1.5 on 2.6.26-rc8
@@ -1114,11 +1126,11 @@ can be done from the debug file system. Make sure the
 ftrace_enabled is set; otherwise this tracer is a nop.
 
  # sysctl kernel.ftrace_enabled=1
- # echo function > /debug/tracing/current_tracer
- # echo 1 > /debug/tracing/tracing_enabled
+ # echo function > current_tracer
+ # echo 1 > tracing_enabled
  # usleep 1
- # echo 0 > /debug/tracing/tracing_enabled
- # cat /debug/tracing/trace
+ # echo 0 > tracing_enabled
+ # cat trace
 # tracer: function
 #
 #           TASK-PID   CPU#    TIMESTAMP  FUNCTION
@@ -1155,7 +1167,7 @@ int trace_fd;
 [...]
 int main(int argc, char *argv[]) {
         [...]
-        trace_fd = open("/debug/tracing/tracing_enabled", O_WRONLY);
+        trace_fd = open(tracing_file("tracing_enabled"), O_WRONLY);
         [...]
         if (condition_hit()) {
                 write(trace_fd, "0", 1);
@@ -1163,26 +1175,20 @@ int main(int argc, char *argv[]) {
         [...]
 }
 
-Note: Here we hard coded the path name. The debugfs mount is not
-guaranteed to be at /debug (and is more commonly at
-/sys/kernel/debug). For simple one time traces, the above is
-sufficent. For anything else, a search through /proc/mounts may
-be needed to find where the debugfs file-system is mounted.
-
 
 Single thread tracing
 ---------------------
 
-By writing into /debug/tracing/set_ftrace_pid you can trace a
+By writing into set_ftrace_pid you can trace a
 single thread. For example:
 
-# cat /debug/tracing/set_ftrace_pid
+# cat set_ftrace_pid
 no pid
-# echo 3111 > /debug/tracing/set_ftrace_pid
-# cat /debug/tracing/set_ftrace_pid
+# echo 3111 > set_ftrace_pid
+# cat set_ftrace_pid
 3111
-# echo function > /debug/tracing/current_tracer
-# cat /debug/tracing/trace | head
+# echo function > current_tracer
+# cat trace | head
  # tracer: function
  #
  #           TASK-PID    CPU#    TIMESTAMP  FUNCTION
@@ -1193,8 +1199,8 @@ no pid
      yum-updatesd-3111  [003]  1637.254683: lock_hrtimer_base <-hrtimer_try_to_cancel
      yum-updatesd-3111  [003]  1637.254685: fget_light <-do_sys_poll
      yum-updatesd-3111  [003]  1637.254686: pipe_poll <-do_sys_poll
-# echo -1 > /debug/tracing/set_ftrace_pid
-# cat /debug/tracing/trace |head
+# echo -1 > set_ftrace_pid
+# cat trace |head
  # tracer: function
  #
  #           TASK-PID    CPU#    TIMESTAMP  FUNCTION
@@ -1216,6 +1222,51 @@ something like this simple program:
 #include <fcntl.h>
 #include <unistd.h>
 
+#define _STR(x) #x
+#define STR(x) _STR(x)
+#define MAX_PATH 256
+
+const char *find_debugfs(void)
+{
+       static char debugfs[MAX_PATH+1];
+       static int debugfs_found;
+       char type[100];
+       FILE *fp;
+
+       if (debugfs_found)
+               return debugfs;
+
+       if ((fp = fopen("/proc/mounts","r")) == NULL) {
+               perror("/proc/mounts");
+               return NULL;
+       }
+
+       while (fscanf(fp, "%*s %"
+                     STR(MAX_PATH)
+                     "s %99s %*s %*d %*d\n",
+                     debugfs, type) == 2) {
+               if (strcmp(type, "debugfs") == 0)
+                       break;
+       }
+       fclose(fp);
+
+       if (strcmp(type, "debugfs") != 0) {
+               fprintf(stderr, "debugfs not mounted");
+               return NULL;
+       }
+
+       debugfs_found = 1;
+
+       return debugfs;
+}
+
+const char *tracing_file(const char *file_name)
+{
+       static char trace_file[MAX_PATH+1];
+       snprintf(trace_file, MAX_PATH, "%s/%s", find_debugfs(), file_name);
+       return trace_file;
+}
+
 int main (int argc, char **argv)
 {
         if (argc < 1)
@@ -1226,12 +1277,12 @@ int main (int argc, char **argv)
                 char line[64];
                 int s;
 
-                ffd = open("/debug/tracing/current_tracer", O_WRONLY);
+                ffd = open(tracing_file("current_tracer"), O_WRONLY);
                 if (ffd < 0)
                         exit(-1);
                 write(ffd, "nop", 3);
 
-                fd = open("/debug/tracing/set_ftrace_pid", O_WRONLY);
+                fd = open(tracing_file("set_ftrace_pid"), O_WRONLY);
                 s = sprintf(line, "%d\n", getpid());
                 write(fd, line, s);
 
@@ -1383,22 +1434,22 @@ want, depending on your needs.
   tracing_cpu_mask file) or you might sometimes see unordered
   function calls while cpu tracing switch.
 
-        hide: echo nofuncgraph-cpu > /debug/tracing/trace_options
-        show: echo funcgraph-cpu > /debug/tracing/trace_options
+        hide: echo nofuncgraph-cpu > trace_options
+        show: echo funcgraph-cpu > trace_options
 
 - The duration (function's time of execution) is displayed on
   the closing bracket line of a function or on the same line
   than the current function in case of a leaf one. It is default
   enabled.
 
-        hide: echo nofuncgraph-duration > /debug/tracing/trace_options
-        show: echo funcgraph-duration > /debug/tracing/trace_options
+        hide: echo nofuncgraph-duration > trace_options
+        show: echo funcgraph-duration > trace_options
 
 - The overhead field precedes the duration field in case of
   reached duration thresholds.
 
-        hide: echo nofuncgraph-overhead > /debug/tracing/trace_options
-        show: echo funcgraph-overhead > /debug/tracing/trace_options
+        hide: echo nofuncgraph-overhead > trace_options
+        show: echo funcgraph-overhead > trace_options
         depends on: funcgraph-duration
 
   ie:
@@ -1427,8 +1478,8 @@ want, depending on your needs.
 - The task/pid field displays the thread cmdline and pid which
   executed the function. It is default disabled.
 
-        hide: echo nofuncgraph-proc > /debug/tracing/trace_options
-        show: echo funcgraph-proc > /debug/tracing/trace_options
+        hide: echo nofuncgraph-proc > trace_options
+        show: echo funcgraph-proc > trace_options
 
   ie:
 
@@ -1451,8 +1502,8 @@ want, depending on your needs.
   system clock since it started. A snapshot of this time is
   given on each entry/exit of functions
 
-        hide: echo nofuncgraph-abstime > /debug/tracing/trace_options
-        show: echo funcgraph-abstime > /debug/tracing/trace_options
+        hide: echo nofuncgraph-abstime > trace_options
+        show: echo funcgraph-abstime > trace_options
 
   ie:
 
@@ -1549,7 +1600,7 @@ listed in:
 
    available_filter_functions
 
- # cat /debug/tracing/available_filter_functions
+ # cat available_filter_functions
 put_prev_task_idle
 kmem_cache_create
 pick_next_task_rt
@@ -1561,12 +1612,12 @@ mutex_lock
 If I am only interested in sys_nanosleep and hrtimer_interrupt:
 
  # echo sys_nanosleep hrtimer_interrupt \
-                > /debug/tracing/set_ftrace_filter
- # echo ftrace > /debug/tracing/current_tracer
- # echo 1 > /debug/tracing/tracing_enabled
+                > set_ftrace_filter
+ # echo ftrace > current_tracer
+ # echo 1 > tracing_enabled
  # usleep 1
- # echo 0 > /debug/tracing/tracing_enabled
- # cat /debug/tracing/trace
+ # echo 0 > tracing_enabled
+ # cat trace
 # tracer: ftrace
 #
 #           TASK-PID   CPU#    TIMESTAMP  FUNCTION
@@ -1577,7 +1628,7 @@ If I am only interested in sys_nanosleep and hrtimer_interrupt:
 
 To see which functions are being traced, you can cat the file:
 
- # cat /debug/tracing/set_ftrace_filter
+ # cat set_ftrace_filter
 hrtimer_interrupt
 sys_nanosleep
 
@@ -1597,7 +1648,7 @@ Note: It is better to use quotes to enclose the wild cards,
       otherwise the shell may expand the parameters into names
       of files in the local directory.
 
- # echo 'hrtimer_*' > /debug/tracing/set_ftrace_filter
+ # echo 'hrtimer_*' > set_ftrace_filter
 
 Produces:
 
@@ -1618,7 +1669,7 @@ Produces:
 
 Notice that we lost the sys_nanosleep.
 
- # cat /debug/tracing/set_ftrace_filter
+ # cat set_ftrace_filter
 hrtimer_run_queues
 hrtimer_run_pending
 hrtimer_init
@@ -1644,17 +1695,17 @@ To append to the filters, use '>>'
 To clear out a filter so that all functions will be recorded
 again:
 
- # echo > /debug/tracing/set_ftrace_filter
- # cat /debug/tracing/set_ftrace_filter
+ # echo > set_ftrace_filter
+ # cat set_ftrace_filter
  #
 
 Again, now we want to append.
 
- # echo sys_nanosleep > /debug/tracing/set_ftrace_filter
- # cat /debug/tracing/set_ftrace_filter
+ # echo sys_nanosleep > set_ftrace_filter
+ # cat set_ftrace_filter
 sys_nanosleep
- # echo 'hrtimer_*' >> /debug/tracing/set_ftrace_filter
- # cat /debug/tracing/set_ftrace_filter
+ # echo 'hrtimer_*' >> set_ftrace_filter
+ # cat set_ftrace_filter
 hrtimer_run_queues
 hrtimer_run_pending
 hrtimer_init
@@ -1677,7 +1728,7 @@ hrtimer_init_sleeper
 The set_ftrace_notrace prevents those functions from being
 traced.
 
- # echo '*preempt*' '*lock*' > /debug/tracing/set_ftrace_notrace
+ # echo '*preempt*' '*lock*' > set_ftrace_notrace
 
 Produces:
 
@@ -1767,13 +1818,13 @@ the effect on the tracing is different. Every read from
 trace_pipe is consumed. This means that subsequent reads will be
 different. The trace is live.
 
- # echo function > /debug/tracing/current_tracer
- # cat /debug/tracing/trace_pipe > /tmp/trace.out &
+ # echo function > current_tracer
+ # cat trace_pipe > /tmp/trace.out &
 [1] 4153
- # echo 1 > /debug/tracing/tracing_enabled
+ # echo 1 > tracing_enabled
  # usleep 1
- # echo 0 > /debug/tracing/tracing_enabled
- # cat /debug/tracing/trace
+ # echo 0 > tracing_enabled
+ # cat trace
 # tracer: function
 #
 #           TASK-PID   CPU#    TIMESTAMP  FUNCTION
@@ -1809,7 +1860,7 @@ number listed is the number of entries that can be recorded per
 CPU. To know the full size, multiply the number of possible CPUS
 with the number of entries.
 
- # cat /debug/tracing/buffer_size_kb
+ # cat buffer_size_kb
 1408 (units kilobytes)
 
 Note, to modify this, you must have tracing completely disabled.
@@ -1817,18 +1868,18 @@ To do that, echo "nop" into the current_tracer. If the
 current_tracer is not set to "nop", an EINVAL error will be
 returned.
 
- # echo nop > /debug/tracing/current_tracer
- # echo 10000 > /debug/tracing/buffer_size_kb
- # cat /debug/tracing/buffer_size_kb
+ # echo nop > current_tracer
+ # echo 10000 > buffer_size_kb
+ # cat buffer_size_kb
 10000 (units kilobytes)
 
 The number of pages which will be allocated is limited to a
 percentage of available memory. Allocating too much will produce
 an error.
 
- # echo 1000000000000 > /debug/tracing/buffer_size_kb
+ # echo 1000000000000 > buffer_size_kb
 -bash: echo: write error: Cannot allocate memory
- # cat /debug/tracing/buffer_size_kb
+ # cat buffer_size_kb
 85
 
 -----------
diff --git a/Documentation/trace/mmiotrace.txt b/Documentation/trace/mmiotrace.txt
index 5731c67abc5..162effbfbde 100644
--- a/Documentation/trace/mmiotrace.txt
+++ b/Documentation/trace/mmiotrace.txt
@@ -32,41 +32,41 @@ is no way to automatically detect if you are losing events due to CPUs racing.
 Usage Quick Reference
 ---------------------
 
-$ mount -t debugfs debugfs /debug
-$ echo mmiotrace > /debug/tracing/current_tracer
-$ cat /debug/tracing/trace_pipe > mydump.txt &
+$ mount -t debugfs debugfs /sys/kernel/debug
+$ echo mmiotrace > /sys/kernel/debug/tracing/current_tracer
+$ cat /sys/kernel/debug/tracing/trace_pipe > mydump.txt &
 Start X or whatever.
-$ echo "X is up" > /debug/tracing/trace_marker
-$ echo nop > /debug/tracing/current_tracer
+$ echo "X is up" > /sys/kernel/debug/tracing/trace_marker
+$ echo nop > /sys/kernel/debug/tracing/current_tracer
 Check for lost events.
 
 
 Usage
 -----
 
-Make sure debugfs is mounted to /debug. If not, (requires root privileges)
-$ mount -t debugfs debugfs /debug
+Make sure debugfs is mounted to /sys/kernel/debug. If not, (requires root privileges)
+$ mount -t debugfs debugfs /sys/kernel/debug
 
 Check that the driver you are about to trace is not loaded.
 
 Activate mmiotrace (requires root privileges):
-$ echo mmiotrace > /debug/tracing/current_tracer
+$ echo mmiotrace > /sys/kernel/debug/tracing/current_tracer
 
 Start storing the trace:
-$ cat /debug/tracing/trace_pipe > mydump.txt &
+$ cat /sys/kernel/debug/tracing/trace_pipe > mydump.txt &
 The 'cat' process should stay running (sleeping) in the background.
 
 Load the driver you want to trace and use it. Mmiotrace will only catch MMIO
 accesses to areas that are ioremapped while mmiotrace is active.
 
 During tracing you can place comments (markers) into the trace by
-$ echo "X is up" > /debug/tracing/trace_marker
+$ echo "X is up" > /sys/kernel/debug/tracing/trace_marker
 This makes it easier to see which part of the (huge) trace corresponds to
 which action. It is recommended to place descriptive markers about what you
 do.
 
 Shut down mmiotrace (requires root privileges):
-$ echo nop > /debug/tracing/current_tracer
+$ echo nop > /sys/kernel/debug/tracing/current_tracer
 The 'cat' process exits. If it does not, kill it by issuing 'fg' command and
 pressing ctrl+c.
 
@@ -78,10 +78,10 @@ to view your kernel log and look for "mmiotrace has lost events" warning. If
 events were lost, the trace is incomplete. You should enlarge the buffers and
 try again. Buffers are enlarged by first seeing how large the current buffers
 are:
-$ cat /debug/tracing/buffer_size_kb
+$ cat /sys/kernel/debug/tracing/buffer_size_kb
 gives you a number. Approximately double this number and write it back, for
 instance:
-$ echo 128000 > /debug/tracing/buffer_size_kb
+$ echo 128000 > /sys/kernel/debug/tracing/buffer_size_kb
 Then start again from the top.
 
 If you are doing a trace for a driver project, e.g. Nouveau, you should also
diff --git a/arch/mips/sni/eisa.c b/arch/mips/sni/eisa.c
index 7396cd71990..6827feb4de9 100644
--- a/arch/mips/sni/eisa.c
+++ b/arch/mips/sni/eisa.c
@@ -38,7 +38,7 @@ int __init sni_eisa_root_init(void)
         if (!r)
                 return r;
 
-        eisa_root_dev.dev.driver_data = &eisa_bus_root;
+        dev_set_drvdata(&eisa_root_dev.dev, &eisa_bus_root);
 
         if (eisa_root_register(&eisa_bus_root)) {
                 /* A real bridge may have been registered before
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 434ba121e3c..3b44b47c7e1 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -360,7 +360,7 @@ static struct platform_driver uml_net_driver = {
 
 static void net_device_release(struct device *dev)
 {
-        struct uml_net *device = dev->driver_data;
+        struct uml_net *device = dev_get_drvdata(dev);
         struct net_device *netdev = device->dev;
         struct uml_net_private *lp = netdev_priv(netdev);
 
@@ -440,7 +440,7 @@ static void eth_configure(int n, void *init, char *mac,
         device->pdev.id = n;
         device->pdev.name = DRIVER_NAME;
         device->pdev.dev.release = net_device_release;
-        device->pdev.dev.driver_data = device;
+        dev_set_drvdata(&device->pdev.dev, device);
         if (platform_device_register(&device->pdev))
                 goto out_free_netdev;
         SET_NETDEV_DEV(dev,&device->pdev.dev);
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index aa9e926e13d..8f05d4d9da1 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -778,7 +778,7 @@ static int ubd_open_dev(struct ubd *ubd_dev)
 
 static void ubd_device_release(struct device *dev)
 {
-        struct ubd *ubd_dev = dev->driver_data;
+        struct ubd *ubd_dev = dev_get_drvdata(dev);
 
         blk_cleanup_queue(ubd_dev->queue);
         *ubd_dev = ((struct ubd) DEFAULT_UBD);
@@ -807,7 +807,7 @@ static int ubd_disk_register(int major, u64 size, int unit,
                 ubd_devs[unit].pdev.id   = unit;
                 ubd_devs[unit].pdev.name = DRIVER_NAME;
                 ubd_devs[unit].pdev.dev.release = ubd_device_release;
-                ubd_devs[unit].pdev.dev.driver_data = &ubd_devs[unit];
+                dev_set_drvdata(&ubd_devs[unit].pdev.dev, &ubd_devs[unit]);
                 platform_device_register(&ubd_devs[unit].pdev);
                 disk->driverfs_dev = &ubd_devs[unit].pdev.dev;
         }
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 2ac1f0c2beb..b07af886124 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -182,6 +182,11 @@ static struct notifier_block __refdata cpuid_class_cpu_notifier =
         .notifier_call = cpuid_class_cpu_callback,
 };
 
+static char *cpuid_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "cpu/%u/cpuid", MINOR(dev->devt));
+}
+
 static int __init cpuid_init(void)
 {
         int i, err = 0;
@@ -198,6 +203,7 @@ static int __init cpuid_init(void)
                 err = PTR_ERR(cpuid_class);
                 goto out_chrdev;
         }
+        cpuid_class->nodename = cpuid_nodename;
         for_each_online_cpu(i) {
                 err = cpuid_device_create(i);
                 if (err != 0)
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 9c4461501fc..9371448290a 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -236,6 +236,7 @@ static const struct file_operations microcode_fops = {
 static struct miscdevice microcode_dev = {
         .minor                  = MICROCODE_MINOR,
         .name                   = "microcode",
+        .devnode                = "cpu/microcode",
         .fops                   = &microcode_fops,
 };
 
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 3cf3413ec62..98fd6cd4e3a 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -196,6 +196,11 @@ static struct notifier_block __refdata msr_class_cpu_notifier = {
         .notifier_call = msr_class_cpu_callback,
 };
 
+static char *msr_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "cpu/%u/msr", MINOR(dev->devt));
+}
+
 static int __init msr_init(void)
 {
         int i, err = 0;
@@ -212,6 +217,7 @@ static int __init msr_init(void)
                 err = PTR_ERR(msr_class);
                 goto out_chrdev;
         }
+        msr_class->nodename = msr_nodename;
         for_each_online_cpu(i) {
                 err = msr_device_create(i);
                 if (err != 0)
diff --git a/block/bsg.c b/block/bsg.c
index 5358f9ae13c..54106f052f7 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -1065,6 +1065,11 @@ EXPORT_SYMBOL_GPL(bsg_register_queue);
 
 static struct cdev bsg_cdev;
 
+static char *bsg_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "bsg/%s", dev_name(dev));
+}
+
 static int __init bsg_init(void)
 {
         int ret, i;
@@ -1085,6 +1090,7 @@ static int __init bsg_init(void)
                 ret = PTR_ERR(bsg_class);
                 goto destroy_kmemcache;
         }
+        bsg_class->nodename = bsg_nodename;
 
         ret = alloc_chrdev_region(&devid, 0, BSG_MAX_DEVS, "bsg");
         if (ret)
diff --git a/block/genhd.c b/block/genhd.c
index fe7ccc0a618..f4c64c2b303 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -996,10 +996,20 @@ struct class block_class = {
         .name           = "block",
 };
 
+static char *block_nodename(struct device *dev)
+{
+        struct gendisk *disk = dev_to_disk(dev);
+
+        if (disk->nodename)
+                return disk->nodename(disk);
+        return NULL;
+}
+
 static struct device_type disk_type = {
         .name           = "disk",
         .groups         = disk_attr_groups,
         .release        = disk_release,
+        .nodename       = block_nodename,
 };
 
 #ifdef CONFIG_PROC_FS
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 1977d4beb89..7ecb1938e59 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -22,6 +22,7 @@
 #include <linux/kallsyms.h>
 #include <linux/semaphore.h>
 #include <linux/mutex.h>
+#include <linux/async.h>
 
 #include "base.h"
 #include "power/power.h"
@@ -161,10 +162,18 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
         struct device *dev = to_dev(kobj);
         int retval = 0;
 
-        /* add the major/minor if present */
+        /* add device node properties if present */
         if (MAJOR(dev->devt)) {
+                const char *tmp;
+                const char *name;
+
                 add_uevent_var(env, "MAJOR=%u", MAJOR(dev->devt));
                 add_uevent_var(env, "MINOR=%u", MINOR(dev->devt));
+                name = device_get_nodename(dev, &tmp);
+                if (name) {
+                        add_uevent_var(env, "DEVNAME=%s", name);
+                        kfree(tmp);
+                }
         }
 
         if (dev->type && dev->type->name)
@@ -874,7 +883,7 @@ int device_add(struct device *dev)
          * the name, and force the use of dev_name()
          */
         if (dev->init_name) {
-                dev_set_name(dev, dev->init_name);
+                dev_set_name(dev, "%s", dev->init_name);
                 dev->init_name = NULL;
         }
 
@@ -1128,6 +1137,47 @@ static struct device *next_device(struct klist_iter *i)
 }
 
 /**
+ * device_get_nodename - path of device node file
+ * @dev: device
+ * @tmp: possibly allocated string
+ *
+ * Return the relative path of a possible device node.
+ * Non-default names may need to allocate a memory to compose
+ * a name. This memory is returned in tmp and needs to be
+ * freed by the caller.
+ */
+const char *device_get_nodename(struct device *dev, const char **tmp)
+{
+        char *s;
+
+        *tmp = NULL;
+
+        /* the device type may provide a specific name */
+        if (dev->type && dev->type->nodename)
+                *tmp = dev->type->nodename(dev);
+        if (*tmp)
+                return *tmp;
+
+        /* the class may provide a specific name */
+        if (dev->class && dev->class->nodename)
+                *tmp = dev->class->nodename(dev);
+        if (*tmp)
+                return *tmp;
+
+        /* return name without allocation, tmp == NULL */
+        if (strchr(dev_name(dev), '!') == NULL)
+                return dev_name(dev);
+
+        /* replace '!' in the name with '/' */
+        *tmp = kstrdup(dev_name(dev), GFP_KERNEL);
+        if (!*tmp)
+                return NULL;
+        while ((s = strchr(*tmp, '!')))
+                s[0] = '/';
+        return *tmp;
+}
+
+/**
  * device_for_each_child - device child iterator.
  * @parent: parent struct device.
  * @data: data for the callback.
@@ -1271,7 +1321,7 @@ struct device *__root_device_register(const char *name, struct module *owner)
         if (!root)
                 return ERR_PTR(err);
 
-        err = dev_set_name(&root->dev, name);
+        err = dev_set_name(&root->dev, "%s", name);
         if (err) {
                 kfree(root);
                 return ERR_PTR(err);
@@ -1665,4 +1715,5 @@ void device_shutdown(void)
         kobject_put(sysfs_dev_char_kobj);
         kobject_put(sysfs_dev_block_kobj);
         kobject_put(dev_kobj);
+        async_synchronize_full();
 }
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 742cbe6b042..f0106875f01 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -226,7 +226,7 @@ static int __device_attach(struct device_driver *drv, void *data)
  * pair is found, break out and return.
  *
  * Returns 1 if the device was bound to a driver;
- * 0 if no matching device was found;
+ * 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.
@@ -320,6 +320,10 @@ static void __device_release_driver(struct device *dev)
                 devres_release_all(dev);
                 dev->driver = NULL;
                 klist_remove(&dev->p->knode_driver);
+                if (dev->bus)
+                        blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
+                                                     BUS_NOTIFY_UNBOUND_DRIVER,
+                                                     dev);
         }
 }
 
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 8a267c42762..ddeb819c8f8 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -40,7 +40,7 @@ static int loading_timeout = 60;	/* In seconds */
 static DEFINE_MUTEX(fw_lock);
 
 struct firmware_priv {
-        char fw_id[FIRMWARE_NAME_MAX];
+        char *fw_id;
         struct completion completion;
         struct bin_attribute attr_data;
         struct firmware *fw;
@@ -355,8 +355,9 @@ static void fw_dev_release(struct device *dev)
         for (i = 0; i < fw_priv->nr_pages; i++)
                 __free_page(fw_priv->pages[i]);
         kfree(fw_priv->pages);
+        kfree(fw_priv->fw_id);
         kfree(fw_priv);
-        kfree(dev);
+        put_device(dev);
 
         module_put(THIS_MODULE);
 }
@@ -386,13 +387,19 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
 
         init_completion(&fw_priv->completion);
         fw_priv->attr_data = firmware_attr_data_tmpl;
-        strlcpy(fw_priv->fw_id, fw_name, FIRMWARE_NAME_MAX);
+        fw_priv->fw_id = kstrdup(fw_name, GFP_KERNEL);
+        if (!fw_priv->fw_id) {
+                dev_err(device, "%s: Firmware name allocation failed\n",
+                        __func__);
+                retval = -ENOMEM;
+                goto error_kfree;
+        }
 
         fw_priv->timeout.function = firmware_class_timeout;
         fw_priv->timeout.data = (u_long) fw_priv;
         init_timer(&fw_priv->timeout);
 
-        dev_set_name(f_dev, dev_name(device));
+        dev_set_name(f_dev, "%s", dev_name(device));
         f_dev->parent = device;
         f_dev->class = &firmware_class;
         dev_set_drvdata(f_dev, fw_priv);
@@ -400,14 +407,17 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
         retval = device_register(f_dev);
         if (retval) {
                 dev_err(device, "%s: device_register failed\n", __func__);
-                goto error_kfree;
+                put_device(f_dev);
+                goto error_kfree_fw_id;
         }
         *dev_p = f_dev;
         return 0;
 
+error_kfree_fw_id:
+        kfree(fw_priv->fw_id);
 error_kfree:
-        kfree(fw_priv);
         kfree(f_dev);
+        kfree(fw_priv);
         return retval;
 }
 
@@ -615,8 +625,9 @@ request_firmware_work_func(void *arg)
  * @cont: function will be called asynchronously when the firmware
  *      request is over.
  *
- *      Asynchronous variant of request_firmware() for contexts where
- *      it is not possible to sleep.
+ *      Asynchronous variant of request_firmware() for user contexts where
+ *      it is not possible to sleep for long time. It can't be called
+ *      in atomic contexts.
  **/
 int
 request_firmware_nowait(
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index ead3f64c41d..81cb01bfc35 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -69,7 +69,8 @@ EXPORT_SYMBOL_GPL(platform_get_irq);
  * @name: resource name
  */
 struct resource *platform_get_resource_byname(struct platform_device *dev,
-                                              unsigned int type, char *name)
+                                              unsigned int type,
+                                              const char *name)
 {
         int i;
 
@@ -88,7 +89,7 @@ EXPORT_SYMBOL_GPL(platform_get_resource_byname);
  * @dev: platform device
  * @name: IRQ name
  */
-int platform_get_irq_byname(struct platform_device *dev, char *name)
+int platform_get_irq_byname(struct platform_device *dev, const char *name)
 {
         struct resource *r = platform_get_resource_byname(dev, IORESOURCE_IRQ,
                                                           name);
@@ -244,7 +245,7 @@ int platform_device_add(struct platform_device *pdev)
         if (pdev->id != -1)
                 dev_set_name(&pdev->dev, "%s.%d", pdev->name,  pdev->id);
         else
-                dev_set_name(&pdev->dev, pdev->name);
+                dev_set_name(&pdev->dev, "%s", pdev->name);
 
         for (i = 0; i < pdev->num_resources; i++) {
                 struct resource *p, *r = &pdev->resource[i];
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 9742a78c9fe..79a9ae5238a 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -131,6 +131,8 @@ static struct kset *system_kset;
 
 int sysdev_class_register(struct sysdev_class *cls)
 {
+        int retval;
+
         pr_debug("Registering sysdev class '%s'\n", cls->name);
 
         INIT_LIST_HEAD(&cls->drivers);
@@ -138,7 +140,11 @@ int sysdev_class_register(struct sysdev_class *cls)
         cls->kset.kobj.parent = &system_kset->kobj;
         cls->kset.kobj.ktype = &ktype_sysdev_class;
         cls->kset.kobj.kset = system_kset;
-        kobject_set_name(&cls->kset.kobj, cls->name);
+
+        retval = kobject_set_name(&cls->kset.kobj, "%s", cls->name);
+        if (retval)
+                return retval;
+
         return kset_register(&cls->kset);
 }
 
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index 200efc4d2c1..19888354188 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -266,6 +266,11 @@ static const struct file_operations aoe_fops = {
         .owner = THIS_MODULE,
 };
 
+static char *aoe_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "etherd/%s", dev_name(dev));
+}
+
 int __init
 aoechr_init(void)
 {
@@ -283,6 +288,8 @@ aoechr_init(void)
                 unregister_chrdev(AOE_MAJOR, "aoechr");
                 return PTR_ERR(aoe_class);
         }
+        aoe_class->nodename = aoe_nodename;
+
         for (i = 0; i < ARRAY_SIZE(chardevs); ++i)
                 device_create(aoe_class, NULL,
                               MKDEV(AOE_MAJOR, chardevs[i].minor), NULL,
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index d57f1175948..83650e00632 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -430,7 +430,7 @@ static void pkt_sysfs_cleanup(void)
 /********************************************************************
   entries in debugfs
 
-  /debugfs/pktcdvd[0-7]/
+  /sys/kernel/debug/pktcdvd[0-7]/
                         info
 
  *******************************************************************/
@@ -2855,6 +2855,11 @@ static struct block_device_operations pktcdvd_ops = {
         .media_changed =        pkt_media_changed,
 };
 
+static char *pktcdvd_nodename(struct gendisk *gd)
+{
+        return kasprintf(GFP_KERNEL, "pktcdvd/%s", gd->disk_name);
+}
+
 /*
  * Set up mapping from pktcdvd device to CD-ROM device.
  */
@@ -2907,6 +2912,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
         disk->fops = &pktcdvd_ops;
         disk->flags = GENHD_FL_REMOVABLE;
         strcpy(disk->disk_name, pd->name);
+        disk->nodename = pktcdvd_nodename;
         disk->private_data = pd;
         disk->queue = blk_alloc_queue(GFP_KERNEL);
         if (!disk->queue)
@@ -3062,6 +3068,7 @@ static const struct file_operations pkt_ctl_fops = {
 static struct miscdevice pkt_misc = {
         .minor          = MISC_DYNAMIC_MINOR,
         .name           = DRIVER_NAME,
+        .name           = "pktcdvd/control",
         .fops           = &pkt_ctl_fops
 };
 
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index c1996829d5e..e53284767f7 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -753,12 +753,12 @@ static int blkfront_probe(struct xenbus_device *dev,
 
         /* Front end dir is a number, which is used as the id. */
         info->handle = simple_strtoul(strrchr(dev->nodename, '/')+1, NULL, 0);
-        dev->dev.driver_data = info;
+        dev_set_drvdata(&dev->dev, info);
 
         err = talk_to_backend(dev, info);
         if (err) {
                 kfree(info);
-                dev->dev.driver_data = NULL;
+                dev_set_drvdata(&dev->dev, NULL);
                 return err;
         }
 
@@ -843,7 +843,7 @@ static int blkif_recover(struct blkfront_info *info)
  */
 static int blkfront_resume(struct xenbus_device *dev)
 {
-        struct blkfront_info *info = dev->dev.driver_data;
+        struct blkfront_info *info = dev_get_drvdata(&dev->dev);
         int err;
 
         dev_dbg(&dev->dev, "blkfront_resume: %s\n", dev->nodename);
@@ -922,7 +922,7 @@ static void blkfront_connect(struct blkfront_info *info)
  */
 static void blkfront_closing(struct xenbus_device *dev)
 {
-        struct blkfront_info *info = dev->dev.driver_data;
+        struct blkfront_info *info = dev_get_drvdata(&dev->dev);
         unsigned long flags;
 
         dev_dbg(&dev->dev, "blkfront_closing: %s removed\n", dev->nodename);
@@ -957,7 +957,7 @@ static void blkfront_closing(struct xenbus_device *dev)
 static void backend_changed(struct xenbus_device *dev,
                             enum xenbus_state backend_state)
 {
-        struct blkfront_info *info = dev->dev.driver_data;
+        struct blkfront_info *info = dev_get_drvdata(&dev->dev);
         struct block_device *bd;
 
         dev_dbg(&dev->dev, "blkfront:backend_changed.\n");
@@ -997,7 +997,7 @@ static void backend_changed(struct xenbus_device *dev,
 
 static int blkfront_remove(struct xenbus_device *dev)
 {
-        struct blkfront_info *info = dev->dev.driver_data;
+        struct blkfront_info *info = dev_get_drvdata(&dev->dev);
 
         dev_dbg(&dev->dev, "blkfront_remove: %s removed\n", dev->nodename);
 
@@ -1010,7 +1010,7 @@ static int blkfront_remove(struct xenbus_device *dev)
 
 static int blkfront_is_ready(struct xenbus_device *dev)
 {
-        struct blkfront_info *info = dev->dev.driver_data;
+        struct blkfront_info *info = dev_get_drvdata(&dev->dev);
 
         return info->is_ready;
 }
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index c76bccf5354..7d64e4230e6 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -347,7 +347,7 @@ static void __exit hvcs_module_exit(void);
 
 static inline struct hvcs_struct *from_vio_dev(struct vio_dev *viod)
 {
-        return viod->dev.driver_data;
+        return dev_get_drvdata(&viod->dev);
 }
 /* The sysfs interface for the driver and devices */
 
@@ -785,7 +785,7 @@ static int __devinit hvcs_probe(
         kref_init(&hvcsd->kref);
 
         hvcsd->vdev = dev;
-        dev->dev.driver_data = hvcsd;
+        dev_set_drvdata(&dev->dev, hvcsd);
 
         hvcsd->index = index;
 
@@ -831,7 +831,7 @@ static int __devinit hvcs_probe(
 
 static int __devexit hvcs_remove(struct vio_dev *dev)
 {
-        struct hvcs_struct *hvcsd = dev->dev.driver_data;
+        struct hvcs_struct *hvcsd = dev_get_drvdata(&dev->dev);
         unsigned long flags;
         struct tty_struct *tty;
 
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index e5d583c84e4..fc93e2fc7c7 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -153,6 +153,7 @@ static const struct file_operations rng_chrdev_ops = {
 static struct miscdevice rng_miscdev = {
         .minor          = RNG_MISCDEV_MINOR,
         .name           = RNG_MODULE_NAME,
+        .devnode        = "hwrng",
         .fops           = &rng_chrdev_ops,
 };
 
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 259644646b8..d2e698096ac 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -2375,14 +2375,14 @@ static int __devinit ipmi_of_probe(struct of_device *dev,
                 info->io.addr_data, info->io.regsize, info->io.regspacing,
                 info->irq);
 
-        dev->dev.driver_data = (void *) info;
+        dev_set_drvdata(&dev->dev, info);
 
         return try_smi_init(info);
 }
 
 static int __devexit ipmi_of_remove(struct of_device *dev)
 {
-        cleanup_one_si(dev->dev.driver_data);
+        cleanup_one_si(dev_get_drvdata(&dev->dev));
         return 0;
 }
 
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index a5e0db9d766..62c99fa59e2 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -168,7 +168,6 @@ static const struct file_operations misc_fops = {
         .open           = misc_open,
 };
 
-
 /**
  *      misc_register   -       register a miscellaneous device
  *      @misc: device structure
@@ -217,8 +216,8 @@ int misc_register(struct miscdevice * misc)
                 misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7);
         dev = MKDEV(MISC_MAJOR, misc->minor);
 
-        misc->this_device = device_create(misc_class, misc->parent, dev, NULL,
-                                          "%s", misc->name);
+        misc->this_device = device_create(misc_class, misc->parent, dev,
+                                          misc, "%s", misc->name);
         if (IS_ERR(misc->this_device)) {
                 err = PTR_ERR(misc->this_device);
                 goto out;
@@ -264,6 +263,15 @@ int misc_deregister(struct miscdevice *misc)
 EXPORT_SYMBOL(misc_register);
 EXPORT_SYMBOL(misc_deregister);
 
+static char *misc_nodename(struct device *dev)
+{
+        struct miscdevice *c = dev_get_drvdata(dev);
+
+        if (c->devnode)
+                return kstrdup(c->devnode, GFP_KERNEL);
+        return NULL;
+}
+
 static int __init misc_init(void)
 {
         int err;
@@ -279,6 +287,7 @@ static int __init misc_init(void)
         err = -EIO;
         if (register_chrdev(MISC_MAJOR,"misc",&misc_fops))
                 goto fail_printk;
+        misc_class->nodename = misc_nodename;
         return 0;
 
 fail_printk:
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index db32f0e4c7d..05f9d18b936 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -261,6 +261,11 @@ static const struct file_operations raw_ctl_fops = {
 
 static struct cdev raw_cdev;
 
+static char *raw_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "raw/%s", dev_name(dev));
+}
+
 static int __init raw_init(void)
 {
         dev_t dev = MKDEV(RAW_MAJOR, 0);
@@ -284,6 +289,7 @@ static int __init raw_init(void)
                 ret = PTR_ERR(raw_class);
                 goto error_region;
         }
+        raw_class->nodename = raw_nodename;
         device_create(raw_class, NULL, MKDEV(RAW_MAJOR, 0), NULL, "rawctl");
 
         return 0;
diff --git a/drivers/eisa/pci_eisa.c b/drivers/eisa/pci_eisa.c
index 74edb1d0110..0dd0f633b18 100644
--- a/drivers/eisa/pci_eisa.c
+++ b/drivers/eisa/pci_eisa.c
@@ -31,11 +31,11 @@ static int __init pci_eisa_init(struct pci_dev *pdev,
         }
 
         pci_eisa_root.dev              = &pdev->dev;
-        pci_eisa_root.dev->driver_data = &pci_eisa_root;
         pci_eisa_root.res              = pdev->bus->resource[0];
         pci_eisa_root.bus_base_addr    = pdev->bus->resource[0]->start;
         pci_eisa_root.slots            = EISA_MAX_SLOTS;
         pci_eisa_root.dma_mask         = pdev->dma_mask;
+        dev_set_drvdata(pci_eisa_root.dev, &pci_eisa_root);
 
         if (eisa_root_register (&pci_eisa_root)) {
                 printk (KERN_ERR "pci_eisa : Could not register EISA root\n");
diff --git a/drivers/eisa/virtual_root.c b/drivers/eisa/virtual_root.c
index 3074879f231..535e4f9c83f 100644
--- a/drivers/eisa/virtual_root.c
+++ b/drivers/eisa/virtual_root.c
@@ -57,7 +57,7 @@ static int __init virtual_eisa_root_init (void)
 
         eisa_bus_root.force_probe = force_probe;
         
-        eisa_root_dev.dev.driver_data = &eisa_bus_root;
+        dev_set_drvdata(&eisa_root_dev.dev, &eisa_bus_root);
 
         if (eisa_root_register (&eisa_bus_root)) {
                 /* A real bridge may have been registered before
diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c
index 2bcf51557c7..a70e66e78c7 100644
--- a/drivers/firewire/fw-sbp2.c
+++ b/drivers/firewire/fw-sbp2.c
@@ -1125,7 +1125,7 @@ static int sbp2_probe(struct device *dev)
                 return -ENOMEM;
 
         tgt = (struct sbp2_target *)shost->hostdata;
-        unit->device.driver_data = tgt;
+        dev_set_drvdata(&unit->device, tgt);
         tgt->unit = unit;
         kref_init(&tgt->kref);
         INIT_LIST_HEAD(&tgt->lu_list);
@@ -1180,7 +1180,7 @@ static int sbp2_probe(struct device *dev)
 static int sbp2_remove(struct device *dev)
 {
         struct fw_unit *unit = fw_unit(dev);
-        struct sbp2_target *tgt = unit->device.driver_data;
+        struct sbp2_target *tgt = dev_get_drvdata(&unit->device);
 
         sbp2_target_put(tgt);
         return 0;
@@ -1240,7 +1240,7 @@ static void sbp2_reconnect(struct work_struct *work)
 
 static void sbp2_update(struct fw_unit *unit)
 {
-        struct sbp2_target *tgt = unit->device.driver_data;
+        struct sbp2_target *tgt = dev_get_drvdata(&unit->device);
         struct sbp2_logical_unit *lu;
 
         fw_device_enable_phys_dma(fw_device(unit->device.parent));
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index c77c6c6d9d2..6ce0e2667a8 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -105,7 +105,7 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count,
                 ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
                                           root, tmp, &drm_debugfs_fops);
                 if (!ent) {
-                        DRM_ERROR("Cannot create /debugfs/dri/%s/%s\n",
+                        DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n",
                                   name, files[i].name);
                         drm_free(tmp, sizeof(struct drm_info_node),
                                  _DRM_DRIVER);
@@ -133,9 +133,9 @@ EXPORT_SYMBOL(drm_debugfs_create_files);
  * \param minor device minor number
  * \param root DRI debugfs dir entry.
  *
- * Create the DRI debugfs root entry "/debugfs/dri", the device debugfs root entry
- * "/debugfs/dri/%minor%/", and each entry in debugfs_list as
- * "/debugfs/dri/%minor%/%name%".
+ * Create the DRI debugfs root entry "/sys/kernel/debug/dri", the device debugfs root entry
+ * "/sys/kernel/debug/dri/%minor%/", and each entry in debugfs_list as
+ * "/sys/kernel/debug/dri/%minor%/%name%".
  */
 int drm_debugfs_init(struct drm_minor *minor, int minor_id,
                      struct dentry *root)
@@ -148,7 +148,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
         sprintf(name, "%d", minor_id);
         minor->debugfs_root = debugfs_create_dir(name, root);
         if (!minor->debugfs_root) {
-                DRM_ERROR("Cannot create /debugfs/dri/%s\n", name);
+                DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s\n", name);
                 return -1;
         }
 
@@ -165,7 +165,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
                 ret = dev->driver->debugfs_init(minor);
                 if (ret) {
                         DRM_ERROR("DRM: Driver failed to initialize "
-                                  "/debugfs/dri.\n");
+                                  "/sys/kernel/debug/dri.\n");
                         return ret;
                 }
         }
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 019b7c57823..1bf7efd8d33 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -339,7 +339,7 @@ static int __init drm_core_init(void)
 
         drm_debugfs_root = debugfs_create_dir("dri", NULL);
         if (!drm_debugfs_root) {
-                DRM_ERROR("Cannot create /debugfs/dri\n");
+                DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
                 ret = -1;
                 goto err_p3;
         }
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 89050684fe0..387a8de1bc7 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -343,7 +343,7 @@ static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int t
 #if defined(CONFIG_DEBUG_FS)
         ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
         if (ret) {
-                DRM_ERROR("DRM: Failed to initialize /debugfs/dri.\n");
+                DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
                 goto err_g2;
         }
 #endif
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 9987ab88083..85ec31b3ff0 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -70,6 +70,11 @@ static ssize_t version_show(struct class *dev, char *buf)
                        CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
 }
 
+static char *drm_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
+}
+
 static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
 
 /**
@@ -101,6 +106,8 @@ struct class *drm_sysfs_create(struct module *owner, char *name)
         if (err)
                 goto err_out_class;
 
+        class->nodename = drm_nodename;
+
         return class;
 
 err_out_class:
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index e9b436d2d94..9e9421525fb 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -850,8 +850,14 @@ static const struct file_operations hiddev_fops = {
 #endif
 };
 
+static char *hiddev_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
+}
+
 static struct usb_class_driver hiddev_class = {
         .name =         "hiddev%d",
+        .nodename =     hiddev_nodename,
         .fops =         &hiddev_fops,
         .minor_base =   HIDDEV_MINOR_BASE,
 };
@@ -955,7 +961,6 @@ static int hiddev_usbd_probe(struct usb_interface *intf,
         return -ENODEV;
 }
 
-
 static /* const */ struct usb_driver hiddev_driver = {
         .name =         "hiddev",
         .probe =        hiddev_usbd_probe,
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index ba1488bd843..c14ca144cff 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -3,7 +3,8 @@
 
 int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 {
-        ide_drive_t *drive = dev->driver_data, *pair = ide_get_pair_dev(drive);
+        ide_drive_t *drive = dev_get_drvdata(dev);
+        ide_drive_t *pair = ide_get_pair_dev(drive);
         ide_hwif_t *hwif = drive->hwif;
         struct request *rq;
         struct request_pm_state rqpm;
@@ -34,7 +35,8 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 
 int generic_ide_resume(struct device *dev)
 {
-        ide_drive_t *drive = dev->driver_data, *pair = ide_get_pair_dev(drive);
+        ide_drive_t *drive = dev_get_drvdata(dev);
+        ide_drive_t *pair = ide_get_pair_dev(drive);
         ide_hwif_t *hwif = drive->hwif;
         struct request *rq;
         struct request_pm_state rqpm;
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index f371b0de314..79e0af3fd15 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -535,7 +535,7 @@ static int ide_register_port(ide_hwif_t *hwif)
 
         /* register with global device tree */
         dev_set_name(&hwif->gendev, hwif->name);
-        hwif->gendev.driver_data = hwif;
+        dev_set_drvdata(&hwif->gendev, hwif);
         if (hwif->gendev.parent == NULL)
                 hwif->gendev.parent = hwif->dev;
         hwif->gendev.release = hwif_release_dev;
@@ -987,9 +987,9 @@ static void hwif_register_devices(ide_hwif_t *hwif)
                 int ret;
 
                 dev_set_name(dev, "%u.%u", hwif->index, i);
+                dev_set_drvdata(dev, drive);
                 dev->parent = &hwif->gendev;
                 dev->bus = &ide_bus_type;
-                dev->driver_data = drive;
                 dev->release = drive_release_dev;
 
                 ret = device_register(dev);
diff --git a/drivers/ide/ide_platform.c b/drivers/ide/ide_platform.c
index ee9b55ecc62..b579fbe8837 100644
--- a/drivers/ide/ide_platform.c
+++ b/drivers/ide/ide_platform.c
@@ -112,7 +112,7 @@ out:
 
 static int __devexit plat_ide_remove(struct platform_device *pdev)
 {
-        struct ide_host *host = pdev->dev.driver_data;
+        struct ide_host *host = dev_get_drvdata(&pdev->dev);
 
         ide_host_remove(host);
 
diff --git a/drivers/ieee1394/eth1394.c b/drivers/ieee1394/eth1394.c
index 4ca103577c0..f5c586c2bba 100644
--- a/drivers/ieee1394/eth1394.c
+++ b/drivers/ieee1394/eth1394.c
@@ -361,7 +361,7 @@ static int eth1394_new_node(struct eth1394_host_info *hi,
         node_info->pdg.sz = 0;
         node_info->fifo = CSR1212_INVALID_ADDR_SPACE;
 
-        ud->device.driver_data = node_info;
+        dev_set_drvdata(&ud->device, node_info);
         new_node->ud = ud;
 
         priv = netdev_priv(hi->dev);
@@ -406,7 +406,7 @@ static int eth1394_remove(struct device *dev)
         list_del(&old_node->list);
         kfree(old_node);
 
-        node_info = (struct eth1394_node_info*)ud->device.driver_data;
+        node_info = dev_get_drvdata(&ud->device);
 
         spin_lock_irqsave(&node_info->pdg.lock, flags);
         /* The partial datagram list should be empty, but we'll just
@@ -416,7 +416,7 @@ static int eth1394_remove(struct device *dev)
         spin_unlock_irqrestore(&node_info->pdg.lock, flags);
 
         kfree(node_info);
-        ud->device.driver_data = NULL;
+        dev_set_drvdata(&ud->device, NULL);
         return 0;
 }
 
@@ -688,7 +688,7 @@ static void ether1394_host_reset(struct hpsb_host *host)
         ether1394_reset_priv(dev, 0);
 
         list_for_each_entry(node, &priv->ip_node_list, list) {
-                node_info = node->ud->device.driver_data;
+                node_info = dev_get_drvdata(&node->ud->device);
 
                 spin_lock_irqsave(&node_info->pdg.lock, flags);
 
@@ -872,8 +872,7 @@ static __be16 ether1394_parse_encap(struct sk_buff *skb, struct net_device *dev,
                 if (!node)
                         return cpu_to_be16(0);
 
-                node_info =
-                    (struct eth1394_node_info *)node->ud->device.driver_data;
+                node_info = dev_get_drvdata(&node->ud->device);
 
                 /* Update our speed/payload/fifo_offset table */
                 node_info->maxpayload = maxpayload;
@@ -1080,7 +1079,7 @@ static int ether1394_data_handler(struct net_device *dev, int srcid, int destid,
                 priv->ud_list[NODEID_TO_NODE(srcid)] = ud;
         }
 
-        node_info = (struct eth1394_node_info *)ud->device.driver_data;
+        node_info = dev_get_drvdata(&ud->device);
 
         /* First, did we receive a fragmented or unfragmented datagram? */
         hdr->words.word1 = ntohs(hdr->words.word1);
@@ -1617,8 +1616,7 @@ static int ether1394_tx(struct sk_buff *skb, struct net_device *dev)
                 if (!node)
                         goto fail;
 
-                node_info =
-                    (struct eth1394_node_info *)node->ud->device.driver_data;
+                node_info = dev_get_drvdata(&node->ud->device);
                 if (node_info->fifo == CSR1212_INVALID_ADDR_SPACE)
                         goto fail;
 
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index a51ab233342..83b734aec92 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -718,7 +718,7 @@ static int sbp2_remove(struct device *dev)
         struct scsi_device *sdev;
 
         ud = container_of(dev, struct unit_directory, device);
-        lu = ud->device.driver_data;
+        lu = dev_get_drvdata(&ud->device);
         if (!lu)
                 return 0;
 
@@ -746,7 +746,7 @@ static int sbp2_remove(struct device *dev)
 
 static int sbp2_update(struct unit_directory *ud)
 {
-        struct sbp2_lu *lu = ud->device.driver_data;
+        struct sbp2_lu *lu = dev_get_drvdata(&ud->device);
 
         if (sbp2_reconnect_device(lu) != 0) {
                 /*
@@ -815,7 +815,7 @@ static struct sbp2_lu *sbp2_alloc_device(struct unit_directory *ud)
         atomic_set(&lu->state, SBP2LU_STATE_RUNNING);
         INIT_WORK(&lu->protocol_work, NULL);
 
-        ud->device.driver_data = lu;
+        dev_set_drvdata(&ud->device, lu);
 
         hi = hpsb_get_hostinfo(&sbp2_highlevel, ud->ne->host);
         if (!hi) {
@@ -1051,7 +1051,7 @@ static void sbp2_remove_device(struct sbp2_lu *lu)
                 hpsb_unregister_addrspace(&sbp2_highlevel, hi->host,
                                           lu->status_fifo_addr);
 
-        lu->ud->device.driver_data = NULL;
+        dev_set_drvdata(&lu->ud->device, NULL);
 
         module_put(hi->host->driver->owner);
 no_hi:
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 5c04cfb54cb..158a214da2f 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -760,9 +760,9 @@ int ib_device_register_sysfs(struct ib_device *device)
         int i;
 
         class_dev->class      = &ib_class;
-        class_dev->driver_data = device;
         class_dev->parent     = device->dma_device;
         dev_set_name(class_dev, device->name);
+        dev_set_drvdata(class_dev, device);
 
         INIT_LIST_HEAD(&device->port_list);
 
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
index 85905ab9391..ce4e6eff479 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -636,7 +636,7 @@ static ssize_t  ehca_show_##name(struct device *dev,                       \
         struct hipz_query_hca *rblock;                                     \
         int data;                                                          \
                                                                            \
-        shca = dev->driver_data;                                           \
+        shca = dev_get_drvdata(dev);                                       \
                                                                            \
         rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);                      \
         if (!rblock) {                                                     \
@@ -680,7 +680,7 @@ static ssize_t ehca_show_adapter_handle(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
 {
-        struct ehca_shca *shca = dev->driver_data;
+        struct ehca_shca *shca = dev_get_drvdata(dev);
 
         return sprintf(buf, "%llx\n", shca->ipz_hca_handle.handle);
 
@@ -749,7 +749,7 @@ static int __devinit ehca_probe(struct of_device *dev,
 
         shca->ofdev = dev;
         shca->ipz_hca_handle.handle = *handle;
-        dev->dev.driver_data = shca;
+        dev_set_drvdata(&dev->dev, shca);
 
         ret = ehca_sense_attributes(shca);
         if (ret < 0) {
@@ -878,7 +878,7 @@ probe1:
 
 static int __devexit ehca_remove(struct of_device *dev)
 {
-        struct ehca_shca *shca = dev->dev.driver_data;
+        struct ehca_shca *shca = dev_get_drvdata(&dev->dev);
         unsigned long flags;
         int ret;
 
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 5d445f48789..7c237e6ac71 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1265,8 +1265,14 @@ static struct device_type input_dev_type = {
         .uevent         = input_dev_uevent,
 };
 
+static char *input_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "input/%s", dev_name(dev));
+}
+
 struct class input_class = {
         .name           = "input",
+        .nodename       = input_nodename,
 };
 EXPORT_SYMBOL_GPL(input_class);
 
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index 69af8385ab1..2957d48e004 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -569,7 +569,7 @@ static int wm97xx_probe(struct device *dev)
         mutex_init(&wm->codec_mutex);
 
         wm->dev = dev;
-        dev->driver_data = wm;
+        dev_set_drvdata(dev, wm);
         wm->ac97 = to_ac97_t(dev);
 
         /* check that we have a supported codec */
diff --git a/drivers/input/xen-kbdfront.c b/drivers/input/xen-kbdfront.c
index 928d2ed8865..b115726dc08 100644
--- a/drivers/input/xen-kbdfront.c
+++ b/drivers/input/xen-kbdfront.c
@@ -114,7 +114,7 @@ static int __devinit xenkbd_probe(struct xenbus_device *dev,
                 xenbus_dev_fatal(dev, -ENOMEM, "allocating info structure");
                 return -ENOMEM;
         }
-        dev->dev.driver_data = info;
+        dev_set_drvdata(&dev->dev, info);
         info->xbdev = dev;
         info->irq = -1;
         snprintf(info->phys, sizeof(info->phys), "xenbus/%s", dev->nodename);
@@ -186,7 +186,7 @@ static int __devinit xenkbd_probe(struct xenbus_device *dev,
 
 static int xenkbd_resume(struct xenbus_device *dev)
 {
-        struct xenkbd_info *info = dev->dev.driver_data;
+        struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
 
         xenkbd_disconnect_backend(info);
         memset(info->page, 0, PAGE_SIZE);
@@ -195,7 +195,7 @@ static int xenkbd_resume(struct xenbus_device *dev)
 
 static int xenkbd_remove(struct xenbus_device *dev)
 {
-        struct xenkbd_info *info = dev->dev.driver_data;
+        struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
 
         xenkbd_disconnect_backend(info);
         if (info->kbd)
@@ -266,7 +266,7 @@ static void xenkbd_disconnect_backend(struct xenkbd_info *info)
 static void xenkbd_backend_changed(struct xenbus_device *dev,
                                    enum xenbus_state backend_state)
 {
-        struct xenkbd_info *info = dev->dev.driver_data;
+        struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
         int ret, val;
 
         switch (backend_state) {
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 823ceba6efa..1128d3fba79 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1513,6 +1513,7 @@ static const struct file_operations _ctl_fops = {
 static struct miscdevice _dm_misc = {
         .minor          = MISC_DYNAMIC_MINOR,
         .name           = DM_NAME,
+        .devnode        = "mapper/control",
         .fops           = &_ctl_fops
 };
 
diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c
index 1adce9ff52c..7636c33bc1e 100644
--- a/drivers/media/common/tuners/tuner-xc2028.c
+++ b/drivers/media/common/tuners/tuner-xc2028.c
@@ -48,7 +48,7 @@ MODULE_PARM_DESC(audio_std,
         "NICAM/A\n"
         "NICAM/B\n");
 
-static char firmware_name[FIRMWARE_NAME_MAX];
+static char firmware_name[30];
 module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
 MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the "
                                 "default firmware name\n");
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index a454ee8f1e4..479dd05762a 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -447,6 +447,15 @@ static int dvb_uevent(struct device *dev, struct kobj_uevent_env *env)
         return 0;
 }
 
+static char *dvb_nodename(struct device *dev)
+{
+        struct dvb_device *dvbdev = dev_get_drvdata(dev);
+
+        return kasprintf(GFP_KERNEL, "dvb/adapter%d/%s%d",
+                dvbdev->adapter->num, dnames[dvbdev->type], dvbdev->id);
+}
+
+
 static int __init init_dvbdev(void)
 {
         int retval;
@@ -469,6 +478,7 @@ static int __init init_dvbdev(void)
                 goto error;
         }
         dvb_class->dev_uevent = dvb_uevent;
+        dvb_class->nodename = dvb_nodename;
         return 0;
 
 error:
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb.h b/drivers/media/dvb/dvb-usb/dvb-usb.h
index 2d5352e54dc..b5157518a30 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb.h
+++ b/drivers/media/dvb/dvb-usb/dvb-usb.h
@@ -196,7 +196,7 @@ struct dvb_usb_device_properties {
 #define CYPRESS_FX2     3
         int        usb_ctrl;
         int        (*download_firmware) (struct usb_device *, const struct firmware *);
-        const char firmware[FIRMWARE_NAME_MAX];
+        const char *firmware;
         int        no_reconnect;
 
         int size_of_priv;
diff --git a/drivers/media/dvb/firewire/firedtv-1394.c b/drivers/media/dvb/firewire/firedtv-1394.c
index 4e207658c5d..2b6eeeab5b2 100644
--- a/drivers/media/dvb/firewire/firedtv-1394.c
+++ b/drivers/media/dvb/firewire/firedtv-1394.c
@@ -225,7 +225,7 @@ fail_free:
 
 static int node_remove(struct device *dev)
 {
-        struct firedtv *fdtv = dev->driver_data;
+        struct firedtv *fdtv = dev_get_drvdata(dev);
 
         fdtv_dvb_unregister(fdtv);
 
@@ -242,7 +242,7 @@ static int node_remove(struct device *dev)
 
 static int node_update(struct unit_directory *ud)
 {
-        struct firedtv *fdtv = ud->device.driver_data;
+        struct firedtv *fdtv = dev_get_drvdata(&ud->device);
 
         if (fdtv->isochannel >= 0)
                 cmp_establish_pp_connection(fdtv, fdtv->subunit,
diff --git a/drivers/media/dvb/firewire/firedtv-dvb.c b/drivers/media/dvb/firewire/firedtv-dvb.c
index 9d308dd32a5..5742fde79d9 100644
--- a/drivers/media/dvb/firewire/firedtv-dvb.c
+++ b/drivers/media/dvb/firewire/firedtv-dvb.c
@@ -268,7 +268,7 @@ struct firedtv *fdtv_alloc(struct device *dev,
         if (!fdtv)
                 return NULL;
 
-        dev->driver_data        = fdtv;
+        dev_set_drvdata(dev, fdtv);
         fdtv->device            = dev;
         fdtv->isochannel        = -1;
         fdtv->voltage           = 0xff;
diff --git a/drivers/media/video/dabusb.c b/drivers/media/video/dabusb.c
index ba3709bec3f..ec2f45dde16 100644
--- a/drivers/media/video/dabusb.c
+++ b/drivers/media/video/dabusb.c
@@ -747,8 +747,14 @@ static const struct file_operations dabusb_fops =
         .release =      dabusb_release,
 };
 
+static char *dabusb_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
+}
+
 static struct usb_class_driver dabusb_class = {
         .name =         "dabusb%d",
+        .nodename =     dabusb_nodename,
         .fops =         &dabusb_fops,
         .minor_base =   DABUSB_MINOR,
 };
diff --git a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
index 299c1cbc383..6c23456e0bd 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
@@ -539,7 +539,7 @@ static void class_dev_destroy(struct pvr2_sysfs *sfp)
                                          &sfp->attr_unit_number);
         }
         pvr2_sysfs_trace("Destroying class_dev id=%p",sfp->class_dev);
-        sfp->class_dev->driver_data = NULL;
+        dev_set_drvdata(sfp->class_dev, NULL);
         device_unregister(sfp->class_dev);
         sfp->class_dev = NULL;
 }
@@ -549,7 +549,7 @@ static ssize_t v4l_minor_number_show(struct device *class_dev,
                                      struct device_attribute *attr, char *buf)
 {
         struct pvr2_sysfs *sfp;
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
         return scnprintf(buf,PAGE_SIZE,"%d\n",
                          pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw,
@@ -561,7 +561,7 @@ static ssize_t bus_info_show(struct device *class_dev,
                              struct device_attribute *attr, char *buf)
 {
         struct pvr2_sysfs *sfp;
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
         return scnprintf(buf,PAGE_SIZE,"%s\n",
                          pvr2_hdw_get_bus_info(sfp->channel.hdw));
@@ -572,7 +572,7 @@ static ssize_t hdw_name_show(struct device *class_dev,
                              struct device_attribute *attr, char *buf)
 {
         struct pvr2_sysfs *sfp;
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
         return scnprintf(buf,PAGE_SIZE,"%s\n",
                          pvr2_hdw_get_type(sfp->channel.hdw));
@@ -583,7 +583,7 @@ static ssize_t hdw_desc_show(struct device *class_dev,
                              struct device_attribute *attr, char *buf)
 {
         struct pvr2_sysfs *sfp;
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
         return scnprintf(buf,PAGE_SIZE,"%s\n",
                          pvr2_hdw_get_desc(sfp->channel.hdw));
@@ -595,7 +595,7 @@ static ssize_t v4l_radio_minor_number_show(struct device *class_dev,
                                            char *buf)
 {
         struct pvr2_sysfs *sfp;
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
         return scnprintf(buf,PAGE_SIZE,"%d\n",
                          pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw,
@@ -607,7 +607,7 @@ static ssize_t unit_number_show(struct device *class_dev,
                                 struct device_attribute *attr, char *buf)
 {
         struct pvr2_sysfs *sfp;
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
         return scnprintf(buf,PAGE_SIZE,"%d\n",
                          pvr2_hdw_get_unit_number(sfp->channel.hdw));
@@ -635,7 +635,7 @@ static void class_dev_create(struct pvr2_sysfs *sfp,
         class_dev->parent = &usb_dev->dev;
 
         sfp->class_dev = class_dev;
-        class_dev->driver_data = sfp;
+        dev_set_drvdata(class_dev, sfp);
         ret = device_register(class_dev);
         if (ret) {
                 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
@@ -792,7 +792,7 @@ static ssize_t debuginfo_show(struct device *class_dev,
                               struct device_attribute *attr, char *buf)
 {
         struct pvr2_sysfs *sfp;
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
         pvr2_hdw_trigger_module_log(sfp->channel.hdw);
         return pvr2_debugifc_print_info(sfp->channel.hdw,buf,PAGE_SIZE);
@@ -803,7 +803,7 @@ static ssize_t debugcmd_show(struct device *class_dev,
                              struct device_attribute *attr, char *buf)
 {
         struct pvr2_sysfs *sfp;
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
         return pvr2_debugifc_print_status(sfp->channel.hdw,buf,PAGE_SIZE);
 }
@@ -816,7 +816,7 @@ static ssize_t debugcmd_store(struct device *class_dev,
         struct pvr2_sysfs *sfp;
         int ret;
 
-        sfp = (struct pvr2_sysfs *)class_dev->driver_data;
+        sfp = dev_get_drvdata(class_dev);
         if (!sfp) return -EINVAL;
 
         ret = pvr2_debugifc_docmd(sfp->channel.hdw,buf,count);
diff --git a/drivers/mfd/htc-pasic3.c b/drivers/mfd/htc-pasic3.c
index 386da1566fc..cb73051e43d 100644
--- a/drivers/mfd/htc-pasic3.c
+++ b/drivers/mfd/htc-pasic3.c
@@ -35,7 +35,7 @@ struct pasic3_data {
  */
 void pasic3_write_register(struct device *dev, u32 reg, u8 val)
 {
-        struct pasic3_data *asic = dev->driver_data;
+        struct pasic3_data *asic = dev_get_drvdata(dev);
         int bus_shift = asic->bus_shift;
         void __iomem *addr = asic->mapping + (REG_ADDR << bus_shift);
         void __iomem *data = asic->mapping + (REG_DATA << bus_shift);
@@ -50,7 +50,7 @@ EXPORT_SYMBOL(pasic3_write_register); /* for leds-pasic3 */
  */
 u8 pasic3_read_register(struct device *dev, u32 reg)
 {
-        struct pasic3_data *asic = dev->driver_data;
+        struct pasic3_data *asic = dev_get_drvdata(dev);
         int bus_shift = asic->bus_shift;
         void __iomem *addr = asic->mapping + (REG_ADDR << bus_shift);
         void __iomem *data = asic->mapping + (REG_DATA << bus_shift);
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index 11a6248cc1c..082c197ab9b 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -618,7 +618,7 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
 
                 pdev->dev.parent = pcf->dev;
                 pdev->dev.platform_data = &pdata->reg_init_data[i];
-                pdev->dev.driver_data = pcf;
+                dev_set_drvdata(&pdev->dev, pcf);
                 pcf->regulator_pdev[i] = pdev;
 
                 platform_device_add(pdev);
diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
index cf30d06a010..7c21bf79156 100644
--- a/drivers/mfd/wm8400-core.c
+++ b/drivers/mfd/wm8400-core.c
@@ -265,7 +265,7 @@ static int wm8400_init(struct wm8400 *wm8400,
 
         mutex_init(&wm8400->io_lock);
 
-        wm8400->dev->driver_data = wm8400;
+        dev_set_drvdata(wm8400->dev, wm8400);
 
         /* Check that this is actually a WM8400 */
         ret = wm8400->read_dev(wm8400->io_data, WM8400_RESET_ID, 1, &reg);
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 01f282cd098..3b6383168c6 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2206,7 +2206,7 @@ config SKGE_DEBUG
        depends on SKGE && DEBUG_FS
        help
          This option adds the ability to dump driver state for debugging.
-         The file debugfs/skge/ethX displays the state of the internal
+         The file /sys/kernel/debug/skge/ethX displays the state of the internal
          transmit and receive rings.
 
          If unsure, say N.
@@ -2232,7 +2232,7 @@ config SKY2_DEBUG
        depends on SKY2 && DEBUG_FS
        help
          This option adds the ability to dump driver state for debugging.
-         The file debugfs/sky2/ethX displays the state of the internal
+         The file /sys/kernel/debug/sky2/ethX displays the state of the internal
          transmit and receive rings.
 
          If unsure, say N.
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 811d3517fce..11a0ba47b67 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1366,6 +1366,7 @@ static const struct file_operations tun_fops = {
 static struct miscdevice tun_miscdev = {
         .minor = TUN_MINOR,
         .name = "tun",
+        .devnode = "net/tun",
         .fops = &tun_fops,
 };
 
diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h
index 1fe5da4cf0a..60330f313f2 100644
--- a/drivers/net/wimax/i2400m/i2400m.h
+++ b/drivers/net/wimax/i2400m/i2400m.h
@@ -432,7 +432,7 @@ struct i2400m {
         unsigned ready:1;               /* all probing steps done */
         unsigned rx_reorder:1;          /* RX reorder is enabled */
         u8 trace_msg_from_user;         /* echo rx msgs to 'trace' pipe */
-                                        /* typed u8 so debugfs/u8 can tweak */
+                                        /* typed u8 so /sys/kernel/debug/u8 can tweak */
         enum i2400m_system_state state;
         wait_queue_head_t state_wq;     /* Woken up when on state updates */
 
diff --git a/drivers/net/wireless/ath/ath5k/Kconfig b/drivers/net/wireless/ath/ath5k/Kconfig
index 509b6f94f73..daf0c83527d 100644
--- a/drivers/net/wireless/ath/ath5k/Kconfig
+++ b/drivers/net/wireless/ath/ath5k/Kconfig
@@ -28,11 +28,10 @@ config ATH5K_DEBUG
           Say Y, if and you will get debug options for ath5k.
           To use this, you need to mount debugfs:
 
-          mkdir /debug/
-          mount -t debugfs debug /debug/
+          mount -t debugfs debug /sys/kernel/debug
 
           You will get access to files under:
-          /debug/ath5k/phy0/
+          /sys/kernel/debug/ath5k/phy0/
 
           To enable debug, pass the debug level to the debug module
           parameter. For example:
diff --git a/drivers/net/wireless/libertas/README b/drivers/net/wireless/libertas/README
index d860fc37575..ab6a2d518af 100644
--- a/drivers/net/wireless/libertas/README
+++ b/drivers/net/wireless/libertas/README
@@ -72,7 +72,7 @@ rdrf
         location that is to be read.  This parameter must be specified in
         hexadecimal (its possible to preceed preceding the number with a "0x").
 
-        Path: /debugfs/libertas_wireless/ethX/registers/
+        Path: /sys/kernel/debug/libertas_wireless/ethX/registers/
 
         Usage:
                 echo "0xa123" > rdmac ; cat rdmac
@@ -95,7 +95,7 @@ wrrf
 sleepparams
         This command is used to set the sleepclock configurations
 
-        Path: /debugfs/libertas_wireless/ethX/
+        Path: /sys/kernel/debug/libertas_wireless/ethX/
 
         Usage:
                 cat sleepparams: reads the current sleepclock configuration
@@ -115,7 +115,7 @@ subscribed_events
         The subscribed_events directory contains the interface for the
         subscribed events API.
 
-        Path: /debugfs/libertas_wireless/ethX/subscribed_events/
+        Path: /sys/kernel/debug/libertas_wireless/ethX/subscribed_events/
 
         Each event is represented by a filename. Each filename consists of the
         following three fields:
@@ -165,7 +165,7 @@ subscribed_events
 extscan
         This command is used to do a specific scan.
 
-        Path: /debugfs/libertas_wireless/ethX/
+        Path: /sys/kernel/debug/libertas_wireless/ethX/
 
         Usage: echo "SSID" > extscan
 
@@ -179,7 +179,7 @@ getscantable
         Display the current contents of the driver scan table (ie. get the
         scan results).
 
-        Path: /debugfs/libertas_wireless/ethX/
+        Path: /sys/kernel/debug/libertas_wireless/ethX/
 
         Usage:
                 cat getscantable
@@ -188,7 +188,7 @@ setuserscan
         Initiate a customized scan and retrieve the results
 
 
-        Path: /debugfs/libertas_wireless/ethX/
+        Path: /sys/kernel/debug/libertas_wireless/ethX/
 
     Usage:
        echo "[ARGS]" > setuserscan
diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index f8c2898d82b..06a46d7b3d6 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -43,8 +43,8 @@ struct if_spi_card {
         struct lbs_private              *priv;
         struct libertas_spi_platform_data *pdata;
 
-        char                            helper_fw_name[FIRMWARE_NAME_MAX];
-        char                            main_fw_name[FIRMWARE_NAME_MAX];
+        char                            helper_fw_name[IF_SPI_FW_NAME_MAX];
+        char                            main_fw_name[IF_SPI_FW_NAME_MAX];
 
         /* The card ID and card revision, as reported by the hardware. */
         u16                             card_id;
@@ -1019,9 +1019,9 @@ static int if_spi_calculate_fw_names(u16 card_id,
                 lbs_pr_err("Unsupported chip_id: 0x%02x\n", card_id);
                 return -EAFNOSUPPORT;
         }
-        snprintf(helper_fw, FIRMWARE_NAME_MAX, "libertas/gspi%d_hlp.bin",
+        snprintf(helper_fw, IF_SPI_FW_NAME_MAX, "libertas/gspi%d_hlp.bin",
                  chip_id_to_device_name[i].name);
-        snprintf(main_fw, FIRMWARE_NAME_MAX, "libertas/gspi%d.bin",
+        snprintf(main_fw, IF_SPI_FW_NAME_MAX, "libertas/gspi%d.bin",
                  chip_id_to_device_name[i].name);
         return 0;
 }
diff --git a/drivers/net/wireless/libertas/if_spi.h b/drivers/net/wireless/libertas/if_spi.h
index 2103869cc5b..f87eec41084 100644
--- a/drivers/net/wireless/libertas/if_spi.h
+++ b/drivers/net/wireless/libertas/if_spi.h
@@ -22,6 +22,9 @@
 #define IF_SPI_CMD_BUF_SIZE 2400
 
 /***************** Firmware *****************/
+
+#define IF_SPI_FW_NAME_MAX 30
+
 struct chip_ident {
         u16 chip_id;
         u16 name;
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index d649caebf08..1844c5adf6e 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -61,11 +61,9 @@ static ssize_t if_usb_firmware_set(struct device *dev,
 {
         struct lbs_private *priv = to_net_dev(dev)->ml_priv;
         struct if_usb_card *cardp = priv->card;
-        char fwname[FIRMWARE_NAME_MAX];
         int ret;
 
-        sscanf(buf, "%29s", fwname); /* FIRMWARE_NAME_MAX - 1 = 29 */
-        ret = if_usb_prog_firmware(cardp, fwname, BOOT_CMD_UPDATE_FW);
+        ret = if_usb_prog_firmware(cardp, buf, BOOT_CMD_UPDATE_FW);
         if (ret == 0)
                 return count;
 
@@ -88,11 +86,9 @@ static ssize_t if_usb_boot2_set(struct device *dev,
 {
         struct lbs_private *priv = to_net_dev(dev)->ml_priv;
         struct if_usb_card *cardp = priv->card;
-        char fwname[FIRMWARE_NAME_MAX];
         int ret;
 
-        sscanf(buf, "%29s", fwname); /* FIRMWARE_NAME_MAX - 1 = 29 */
-        ret = if_usb_prog_firmware(cardp, fwname, BOOT_CMD_UPDATE_BOOT2);
+        ret = if_usb_prog_firmware(cardp, buf, BOOT_CMD_UPDATE_BOOT2);
         if (ret == 0)
                 return count;
 
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index f6732538790..8d88daeed0c 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1212,7 +1212,7 @@ static int __devinit netfront_probe(struct xenbus_device *dev,
         }
 
         info = netdev_priv(netdev);
-        dev->dev.driver_data = info;
+        dev_set_drvdata(&dev->dev, info);
 
         err = register_netdev(info->netdev);
         if (err) {
@@ -1233,7 +1233,7 @@ static int __devinit netfront_probe(struct xenbus_device *dev,
 
  fail:
         free_netdev(netdev);
-        dev->dev.driver_data = NULL;
+        dev_set_drvdata(&dev->dev, NULL);
         return err;
 }
 
@@ -1275,7 +1275,7 @@ static void xennet_disconnect_backend(struct netfront_info *info)
  */
 static int netfront_resume(struct xenbus_device *dev)
 {
-        struct netfront_info *info = dev->dev.driver_data;
+        struct netfront_info *info = dev_get_drvdata(&dev->dev);
 
         dev_dbg(&dev->dev, "%s\n", dev->nodename);
 
@@ -1600,7 +1600,7 @@ static int xennet_connect(struct net_device *dev)
 static void backend_changed(struct xenbus_device *dev,
                             enum xenbus_state backend_state)
 {
-        struct netfront_info *np = dev->dev.driver_data;
+        struct netfront_info *np = dev_get_drvdata(&dev->dev);
         struct net_device *netdev = np->netdev;
 
         dev_dbg(&dev->dev, "%s\n", xenbus_strstate(backend_state));
@@ -1774,7 +1774,7 @@ static struct xenbus_device_id netfront_ids[] = {
 
 static int __devexit xennet_remove(struct xenbus_device *dev)
 {
-        struct netfront_info *info = dev->dev.driver_data;
+        struct netfront_info *info = dev_get_drvdata(&dev->dev);
 
         dev_dbg(&dev->dev, "%s\n", dev->nodename);
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index f415fdd9a88..5b89f404e66 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -373,7 +373,7 @@ static int __init eisa_probe(struct parisc_device *dev)
         if (result >= 0) {
                 /* FIXME : Don't enumerate the bus twice. */
                 eisa_dev.root.dev = &dev->dev;
-                dev->dev.driver_data = &eisa_dev.root;
+                dev_set_drvdata(&dev->dev, &eisa_dev.root);
                 eisa_dev.root.bus_base_addr = 0;
                 eisa_dev.root.res = &eisa_dev.hba.io_space;
                 eisa_dev.root.slots = result;
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index e5999c4cedc..d46dd57450a 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -2010,7 +2010,7 @@ void __init sba_init(void)
 void * sba_get_iommu(struct parisc_device *pci_hba)
 {
         struct parisc_device *sba_dev = parisc_parent(pci_hba);
-        struct sba_device *sba = sba_dev->dev.driver_data;
+        struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
         char t = sba_dev->id.hw_type;
         int iocnum = (pci_hba->hw_path >> 3);   /* rope # */
 
@@ -2031,7 +2031,7 @@ void * sba_get_iommu(struct parisc_device *pci_hba)
 void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
 {
         struct parisc_device *sba_dev = parisc_parent(pci_hba);
-        struct sba_device *sba = sba_dev->dev.driver_data;
+        struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
         char t = sba_dev->id.hw_type;
         int i;
         int rope = (pci_hba->hw_path & (ROPES_PER_IOC-1));  /* rope # */
@@ -2073,7 +2073,7 @@ void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
 void sba_distributed_lmmio(struct parisc_device *pci_hba, struct resource *r )
 {
         struct parisc_device *sba_dev = parisc_parent(pci_hba);
-        struct sba_device *sba = sba_dev->dev.driver_data;
+        struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
         char t = sba_dev->id.hw_type;
         int base, size;
         int rope = (pci_hba->hw_path & (ROPES_PER_IOC-1));  /* rope # */
diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index ea31a452b15..5d6de380e42 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -376,14 +376,14 @@ static int __devinit parport_init_chip(struct parisc_device *dev)
                         /* PARPORT_IRQ_NONE */ PARPORT_DMA_NONE, NULL);
         if (p)
                 parport_count++;
-        dev->dev.driver_data = p;
+        dev_set_drvdata(&dev->dev, p);
 
         return 0;
 }
 
 static int __devexit parport_remove_chip(struct parisc_device *dev)
 {
-        struct parport *p = dev->dev.driver_data;
+        struct parport *p = dev_get_drvdata(&dev->dev);
         if (p) {
                 struct parport_gsc_private *priv = p->private_data;
                 struct parport_operations *ops = p->ops;
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index e3998250386..13ffdc35ea0 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -275,7 +275,7 @@ static void pcie_device_init(struct pci_dev *parent, struct pcie_device *dev,
         memset(device, 0, sizeof(struct device));
         device->bus = &pcie_port_bus_type;
         device->driver = NULL;
-        device->driver_data = NULL;
+        dev_set_drvdata(device, NULL);
         device->release = release_pcie_device;  /* callback to free pcie dev */
         dev_set_name(device, "%s:pcie%02x",
                  pci_name(parent), get_descriptor_id(port_type, service_type));
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 47cab31ff6e..304ff6d5cf3 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -394,7 +394,7 @@ static int pcmcia_device_probe(struct device * dev)
         p_drv = to_pcmcia_drv(dev->driver);
         s = p_dev->socket;
 
-        /* The PCMCIA code passes the match data in via dev->driver_data
+        /* The PCMCIA code passes the match data in via dev_set_drvdata(dev)
          * which is an ugly hack. Once the driver probe is called it may
          * and often will overwrite the match data so we must save it first
          *
@@ -404,7 +404,7 @@ static int pcmcia_device_probe(struct device * dev)
          * call which will then check whether there are two
          * pseudo devices, and if not, add the second one.
          */
-        did = p_dev->dev.driver_data;
+        did = dev_get_drvdata(&p_dev->dev);
 
         ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name);
 
@@ -499,7 +499,7 @@ static int pcmcia_device_remove(struct device * dev)
          * pseudo multi-function card, we need to unbind
          * all devices
          */
-        did = p_dev->dev.driver_data;
+        did = dev_get_drvdata(&p_dev->dev);
         if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
             (p_dev->socket->device_count != 0) &&
             (p_dev->device_no == 0))
@@ -828,7 +828,6 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
 {
         struct pcmcia_socket *s = dev->socket;
         const struct firmware *fw;
-        char path[FIRMWARE_NAME_MAX];
         int ret = -ENOMEM;
         int no_funcs;
         int old_funcs;
@@ -839,16 +838,7 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
 
         ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename);
 
-        if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) {
-                dev_printk(KERN_WARNING, &dev->dev,
-                           "pcmcia: CIS filename is too long [%s]\n",
-                           filename);
-                return -EINVAL;
-        }
-
-        snprintf(path, sizeof(path), "%s", filename);
-
-        if (request_firmware(&fw, path, &dev->dev) == 0) {
+        if (request_firmware(&fw, filename, &dev->dev) == 0) {
                 if (fw->size >= CISTPL_MAX_CIS_SIZE) {
                         ret = -EINVAL;
                         dev_printk(KERN_ERR, &dev->dev,
@@ -988,7 +978,7 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
                         return 0;
         }
 
-        dev->dev.driver_data = (void *) did;
+        dev_set_drvdata(&dev->dev, did);
 
         return 1;
 }
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index b79f31add39..04dc734805c 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -364,7 +364,7 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
         int cstat, dstat;
         int count;
 
-        raw = cdev->dev.driver_data;
+        raw = dev_get_drvdata(&cdev->dev);
         req = (struct raw3215_req *) intparm;
         cstat = irb->scsw.cmd.cstat;
         dstat = irb->scsw.cmd.dstat;
@@ -652,7 +652,7 @@ static int raw3215_probe (struct ccw_device *cdev)
         int line;
 
         /* Console is special. */
-        if (raw3215[0] && (cdev->dev.driver_data == raw3215[0]))
+        if (raw3215[0] && (raw3215[0] == dev_get_drvdata(&cdev->dev)))
                 return 0;
         raw = kmalloc(sizeof(struct raw3215_info) +
                       RAW3215_INBUF_SIZE, GFP_KERNEL|GFP_DMA);
@@ -686,7 +686,7 @@ static int raw3215_probe (struct ccw_device *cdev)
         }
         init_waitqueue_head(&raw->empty_wait);
 
-        cdev->dev.driver_data = raw;
+        dev_set_drvdata(&cdev->dev, raw);
         cdev->handler = raw3215_irq;
 
         return 0;
@@ -697,9 +697,9 @@ static void raw3215_remove (struct ccw_device *cdev)
         struct raw3215_info *raw;
 
         ccw_device_set_offline(cdev);
-        raw = cdev->dev.driver_data;
+        raw = dev_get_drvdata(&cdev->dev);
         if (raw) {
-                cdev->dev.driver_data = NULL;
+                dev_set_drvdata(&cdev->dev, NULL);
                 kfree(raw->buffer);
                 kfree(raw);
         }
@@ -709,7 +709,7 @@ static int raw3215_set_online (struct ccw_device *cdev)
 {
         struct raw3215_info *raw;
 
-        raw = cdev->dev.driver_data;
+        raw = dev_get_drvdata(&cdev->dev);
         if (!raw)
                 return -ENODEV;
 
@@ -720,7 +720,7 @@ static int raw3215_set_offline (struct ccw_device *cdev)
 {
         struct raw3215_info *raw;
 
-        raw = cdev->dev.driver_data;
+        raw = dev_get_drvdata(&cdev->dev);
         if (!raw)
                 return -ENODEV;
 
@@ -898,7 +898,7 @@ static int __init con3215_init(void)
         raw->buffer = (char *) alloc_bootmem_low(RAW3215_BUFFER_SIZE);
         raw->inbuf = (char *) alloc_bootmem_low(RAW3215_INBUF_SIZE);
         raw->cdev = cdev;
-        cdev->dev.driver_data = raw;
+        dev_set_drvdata(&cdev->dev, raw);
         cdev->handler = raw3215_irq;
 
         raw->flags |= RAW3215_FIXED;
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 81c151b5f0a..acab7b2dfe8 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -357,7 +357,7 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
         struct raw3270_request *rq;
         int rc;
 
-        rp = (struct raw3270 *) cdev->dev.driver_data;
+        rp = dev_get_drvdata(&cdev->dev);
         if (!rp)
                 return;
         rq = (struct raw3270_request *) intparm;
@@ -831,7 +831,7 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
         if (rp->minor == -1)
                 return -EUSERS;
         rp->cdev = cdev;
-        cdev->dev.driver_data = rp;
+        dev_set_drvdata(&cdev->dev, rp);
         cdev->handler = raw3270_irq;
         return 0;
 }
@@ -1112,7 +1112,7 @@ raw3270_delete_device(struct raw3270 *rp)
         /* Disconnect from ccw_device. */
         cdev = rp->cdev;
         rp->cdev = NULL;
-        cdev->dev.driver_data = NULL;
+        dev_set_drvdata(&cdev->dev, NULL);
         cdev->handler = NULL;
 
         /* Put ccw_device structure. */
@@ -1136,7 +1136,7 @@ static ssize_t
 raw3270_model_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
         return snprintf(buf, PAGE_SIZE, "%i\n",
-                        ((struct raw3270 *) dev->driver_data)->model);
+                        ((struct raw3270 *) dev_get_drvdata(dev))->model);
 }
 static DEVICE_ATTR(model, 0444, raw3270_model_show, NULL);
 
@@ -1144,7 +1144,7 @@ static ssize_t
 raw3270_rows_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
         return snprintf(buf, PAGE_SIZE, "%i\n",
-                        ((struct raw3270 *) dev->driver_data)->rows);
+                        ((struct raw3270 *) dev_get_drvdata(dev))->rows);
 }
 static DEVICE_ATTR(rows, 0444, raw3270_rows_show, NULL);
 
@@ -1152,7 +1152,7 @@ static ssize_t
 raw3270_columns_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
         return snprintf(buf, PAGE_SIZE, "%i\n",
-                        ((struct raw3270 *) dev->driver_data)->cols);
+                        ((struct raw3270 *) dev_get_drvdata(dev))->cols);
 }
 static DEVICE_ATTR(columns, 0444, raw3270_columns_show, NULL);
 
@@ -1289,7 +1289,7 @@ raw3270_remove (struct ccw_device *cdev)
         struct raw3270_view *v;
         struct raw3270_notifier *np;
 
-        rp = cdev->dev.driver_data;
+        rp = dev_get_drvdata(&cdev->dev);
         /*
          * _remove is the opposite of _probe; it's probe that
          * should set up rp.  raw3270_remove gets entered for
@@ -1337,7 +1337,7 @@ raw3270_set_offline (struct ccw_device *cdev)
 {
         struct raw3270 *rp;
 
-        rp = cdev->dev.driver_data;
+        rp = dev_get_drvdata(&cdev->dev);
         if (test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags))
                 return -EBUSY;
         raw3270_remove(cdev);
diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c
index 144d2a5e1a9..5a519fac37b 100644
--- a/drivers/s390/char/tape_34xx.c
+++ b/drivers/s390/char/tape_34xx.c
@@ -1289,7 +1289,7 @@ static int
 tape_34xx_online(struct ccw_device *cdev)
 {
         return tape_generic_online(
-                cdev->dev.driver_data,
+                dev_get_drvdata(&cdev->dev),
                 &tape_discipline_34xx
         );
 }
diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index 23e6598bc4b..418f72dd39b 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -1703,7 +1703,7 @@ static struct ccw_device_id tape_3590_ids[] = {
 static int
 tape_3590_online(struct ccw_device *cdev)
 {
-        return tape_generic_online(cdev->dev.driver_data,
+        return tape_generic_online(dev_get_drvdata(&cdev->dev),
                                    &tape_discipline_3590);
 }
 
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index 3ebaa8eb5c8..595aa04cfd0 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -92,7 +92,7 @@ tape_medium_state_show(struct device *dev, struct device_attribute *attr, char *
 {
         struct tape_device *tdev;
 
-        tdev = (struct tape_device *) dev->driver_data;
+        tdev = dev_get_drvdata(dev);
         return scnprintf(buf, PAGE_SIZE, "%i\n", tdev->medium_state);
 }
 
@@ -104,7 +104,7 @@ tape_first_minor_show(struct device *dev, struct device_attribute *attr, char *b
 {
         struct tape_device *tdev;
 
-        tdev = (struct tape_device *) dev->driver_data;
+        tdev = dev_get_drvdata(dev);
         return scnprintf(buf, PAGE_SIZE, "%i\n", tdev->first_minor);
 }
 
@@ -116,7 +116,7 @@ tape_state_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
         struct tape_device *tdev;
 
-        tdev = (struct tape_device *) dev->driver_data;
+        tdev = dev_get_drvdata(dev);
         return scnprintf(buf, PAGE_SIZE, "%s\n", (tdev->first_minor < 0) ?
                 "OFFLINE" : tape_state_verbose[tdev->tape_state]);
 }
@@ -130,7 +130,7 @@ tape_operation_show(struct device *dev, struct device_attribute *attr, char *buf
         struct tape_device *tdev;
         ssize_t rc;
 
-        tdev = (struct tape_device *) dev->driver_data;
+        tdev = dev_get_drvdata(dev);
         if (tdev->first_minor < 0)
                 return scnprintf(buf, PAGE_SIZE, "N/A\n");
 
@@ -156,7 +156,7 @@ tape_blocksize_show(struct device *dev, struct device_attribute *attr, char *buf
 {
         struct tape_device *tdev;
 
-        tdev = (struct tape_device *) dev->driver_data;
+        tdev = dev_get_drvdata(dev);
 
         return scnprintf(buf, PAGE_SIZE, "%i\n", tdev->char_data.block_size);
 }
@@ -440,7 +440,7 @@ tape_generic_offline(struct ccw_device *cdev)
 {
         struct tape_device *device;
 
-        device = cdev->dev.driver_data;
+        device = dev_get_drvdata(&cdev->dev);
         if (!device) {
                 return -ENODEV;
         }
@@ -583,7 +583,7 @@ tape_generic_probe(struct ccw_device *cdev)
                 tape_put_device(device);
                 return ret;
         }
-        cdev->dev.driver_data = device;
+        dev_set_drvdata(&cdev->dev, device);
         cdev->handler = __tape_do_irq;
         device->cdev = cdev;
         ccw_device_get_id(cdev, &dev_id);
@@ -622,7 +622,7 @@ tape_generic_remove(struct ccw_device *cdev)
 {
         struct tape_device *    device;
 
-        device = cdev->dev.driver_data;
+        device = dev_get_drvdata(&cdev->dev);
         if (!device) {
                 return;
         }
@@ -662,9 +662,9 @@ tape_generic_remove(struct ccw_device *cdev)
                         tape_cleanup_device(device);
         }
 
-        if (cdev->dev.driver_data != NULL) {
+        if (!dev_get_drvdata(&cdev->dev)) {
                 sysfs_remove_group(&cdev->dev.kobj, &tape_attr_group);
-                cdev->dev.driver_data = tape_put_device(cdev->dev.driver_data);
+                dev_set_drvdata(&cdev->dev, tape_put_device(dev_get_drvdata(&cdev->dev)));
         }
 }
 
@@ -1060,7 +1060,7 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
         struct tape_request *request;
         int rc;
 
-        device = (struct tape_device *) cdev->dev.driver_data;
+        device = dev_get_drvdata(&cdev->dev);
         if (device == NULL) {
                 return;
         }
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index e925808c214..411cfa3c771 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -504,7 +504,7 @@ static ssize_t vmlogrdr_autopurge_store(struct device * dev,
                                         struct device_attribute *attr,
                                         const char * buf, size_t count)
 {
-        struct vmlogrdr_priv_t *priv = dev->driver_data;
+        struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
         ssize_t ret = count;
 
         switch (buf[0]) {
@@ -525,7 +525,7 @@ static ssize_t vmlogrdr_autopurge_show(struct device *dev,
                                        struct device_attribute *attr,
                                        char *buf)
 {
-        struct vmlogrdr_priv_t *priv = dev->driver_data;
+        struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
         return sprintf(buf, "%u\n", priv->autopurge);
 }
 
@@ -541,7 +541,7 @@ static ssize_t vmlogrdr_purge_store(struct device * dev,
 
         char cp_command[80];
         char cp_response[80];
-        struct vmlogrdr_priv_t *priv = dev->driver_data;
+        struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
 
         if (buf[0] != '1')
                 return -EINVAL;
@@ -578,7 +578,7 @@ static ssize_t vmlogrdr_autorecording_store(struct device *dev,
                                             struct device_attribute *attr,
                                             const char *buf, size_t count)
 {
-        struct vmlogrdr_priv_t *priv = dev->driver_data;
+        struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
         ssize_t ret = count;
 
         switch (buf[0]) {
@@ -599,7 +599,7 @@ static ssize_t vmlogrdr_autorecording_show(struct device *dev,
                                            struct device_attribute *attr,
                                            char *buf)
 {
-        struct vmlogrdr_priv_t *priv = dev->driver_data;
+        struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
         return sprintf(buf, "%u\n", priv->autorecording);
 }
 
@@ -612,7 +612,7 @@ static ssize_t vmlogrdr_recording_store(struct device * dev,
                                         struct device_attribute *attr,
                                         const char * buf, size_t count)
 {
-        struct vmlogrdr_priv_t *priv = dev->driver_data;
+        struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
         ssize_t ret;
 
         switch (buf[0]) {
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index 92458219a9e..7d9e67cb647 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -80,11 +80,11 @@ static DEFINE_MUTEX(vmur_mutex);
  *
  * Each ur device (urd) contains a reference to its corresponding ccw device
  * (cdev) using the urd->cdev pointer. Each ccw device has a reference to the
- * ur device using the cdev->dev.driver_data pointer.
+ * ur device using dev_get_drvdata(&cdev->dev) pointer.
  *
  * urd references:
  * - ur_probe gets a urd reference, ur_remove drops the reference
- *   (cdev->dev.driver_data)
+ *   dev_get_drvdata(&cdev->dev)
  * - ur_open gets a urd reference, ur_relase drops the reference
  *   (urf->urd)
  *
@@ -92,7 +92,7 @@ static DEFINE_MUTEX(vmur_mutex);
  * - urdev_alloc get a cdev reference (urd->cdev)
  * - urdev_free drops the cdev reference (urd->cdev)
  *
- * Setting and clearing of cdev->dev.driver_data is protected by the ccwdev lock
+ * Setting and clearing of dev_get_drvdata(&cdev->dev) is protected by the ccwdev lock
  */
 static struct urdev *urdev_alloc(struct ccw_device *cdev)
 {
@@ -131,7 +131,7 @@ static struct urdev *urdev_get_from_cdev(struct ccw_device *cdev)
         unsigned long flags;
 
         spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
-        urd = cdev->dev.driver_data;
+        urd = dev_get_drvdata(&cdev->dev);
         if (urd)
                 urdev_get(urd);
         spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
@@ -310,7 +310,7 @@ static void ur_int_handler(struct ccw_device *cdev, unsigned long intparm,
                 TRACE("ur_int_handler: unsolicited interrupt\n");
                 return;
         }
-        urd = cdev->dev.driver_data;
+        urd = dev_get_drvdata(&cdev->dev);
         BUG_ON(!urd);
         /* On special conditions irb is an error pointer */
         if (IS_ERR(irb))
@@ -856,7 +856,7 @@ static int ur_probe(struct ccw_device *cdev)
                 goto fail_remove_attr;
         }
         spin_lock_irq(get_ccwdev_lock(cdev));
-        cdev->dev.driver_data = urd;
+        dev_set_drvdata(&cdev->dev, urd);
         spin_unlock_irq(get_ccwdev_lock(cdev));
 
         mutex_unlock(&vmur_mutex);
@@ -996,8 +996,8 @@ static void ur_remove(struct ccw_device *cdev)
         ur_remove_attributes(&cdev->dev);
 
         spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
-        urdev_put(cdev->dev.driver_data);
-        cdev->dev.driver_data = NULL;
+        urdev_put(dev_get_drvdata(&cdev->dev));
+        dev_set_drvdata(&cdev->dev, NULL);
         spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
 
         mutex_unlock(&vmur_mutex);
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index d40f7a934f9..f370f8d460a 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -290,7 +290,7 @@ claw_probe(struct ccwgroup_device *cgdev)
         if (!get_device(&cgdev->dev))
                 return -ENODEV;
         privptr = kzalloc(sizeof(struct claw_privbk), GFP_KERNEL);
-        cgdev->dev.driver_data = privptr;
+        dev_set_drvdata(&cgdev->dev, privptr);
         if (privptr == NULL) {
                 probe_error(cgdev);
                 put_device(&cgdev->dev);
@@ -597,14 +597,14 @@ claw_irq_handler(struct ccw_device *cdev,
 
         CLAW_DBF_TEXT(4, trace, "clawirq");
         /* Bypass all 'unsolicited interrupts' */
-        if (!cdev->dev.driver_data) {
+        privptr = dev_get_drvdata(&cdev->dev);
+        if (!privptr) {
                 dev_warn(&cdev->dev, "An uninitialized CLAW device received an"
                         " IRQ, c-%02x d-%02x\n",
                         irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
                 CLAW_DBF_TEXT(2, trace, "badirq");
                 return;
         }
-        privptr = (struct claw_privbk *)cdev->dev.driver_data;
 
         /* Try to extract channel from driver data. */
         if (privptr->channel[READ].cdev == cdev)
@@ -1986,9 +1986,9 @@ probe_error( struct ccwgroup_device *cgdev)
         struct claw_privbk *privptr;
 
         CLAW_DBF_TEXT(4, trace, "proberr");
-        privptr = (struct claw_privbk *) cgdev->dev.driver_data;
+        privptr = dev_get_drvdata(&cgdev->dev);
         if (privptr != NULL) {
-                cgdev->dev.driver_data = NULL;
+                dev_set_drvdata(&cgdev->dev, NULL);
                 kfree(privptr->p_env);
                 kfree(privptr->p_mtc_envelope);
                 kfree(privptr);
@@ -2917,9 +2917,9 @@ claw_new_device(struct ccwgroup_device *cgdev)
         dev_info(&cgdev->dev, "add for %s\n",
                  dev_name(&cgdev->cdev[READ]->dev));
         CLAW_DBF_TEXT(2, setup, "new_dev");
-        privptr = cgdev->dev.driver_data;
-        cgdev->cdev[READ]->dev.driver_data = privptr;
-        cgdev->cdev[WRITE]->dev.driver_data = privptr;
+        privptr = dev_get_drvdata(&cgdev->dev);
+        dev_set_drvdata(&cgdev->cdev[READ]->dev, privptr);
+        dev_set_drvdata(&cgdev->cdev[WRITE]->dev, privptr);
         if (!privptr)
                 return -ENODEV;
         p_env = privptr->p_env;
@@ -2956,9 +2956,9 @@ claw_new_device(struct ccwgroup_device *cgdev)
                 goto out;
         }
         dev->ml_priv = privptr;
-        cgdev->dev.driver_data = privptr;
-        cgdev->cdev[READ]->dev.driver_data = privptr;
-        cgdev->cdev[WRITE]->dev.driver_data = privptr;
+        dev_set_drvdata(&cgdev->dev, privptr);
+        dev_set_drvdata(&cgdev->cdev[READ]->dev, privptr);
+        dev_set_drvdata(&cgdev->cdev[WRITE]->dev, privptr);
         /* sysfs magic */
         SET_NETDEV_DEV(dev, &cgdev->dev);
         if (register_netdev(dev) != 0) {
@@ -3024,7 +3024,7 @@ claw_shutdown_device(struct ccwgroup_device *cgdev)
         int     ret;
 
         CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
-        priv = cgdev->dev.driver_data;
+        priv = dev_get_drvdata(&cgdev->dev);
         if (!priv)
                 return -ENODEV;
         ndev = priv->channel[READ].ndev;
@@ -3054,7 +3054,7 @@ claw_remove_device(struct ccwgroup_device *cgdev)
 
         BUG_ON(!cgdev);
         CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
-        priv = cgdev->dev.driver_data;
+        priv = dev_get_drvdata(&cgdev->dev);
         BUG_ON(!priv);
         dev_info(&cgdev->dev, " will be removed.\n");
         if (cgdev->state == CCWGROUP_ONLINE)
@@ -3069,9 +3069,9 @@ claw_remove_device(struct ccwgroup_device *cgdev)
         kfree(priv->channel[1].irb);
         priv->channel[1].irb=NULL;
         kfree(priv);
-        cgdev->dev.driver_data=NULL;
-        cgdev->cdev[READ]->dev.driver_data = NULL;
-        cgdev->cdev[WRITE]->dev.driver_data = NULL;
+        dev_set_drvdata(&cgdev->dev, NULL);
+        dev_set_drvdata(&cgdev->cdev[READ]->dev, NULL);
+        dev_set_drvdata(&cgdev->cdev[WRITE]->dev, NULL);
         put_device(&cgdev->dev);
 
         return;
@@ -3087,7 +3087,7 @@ claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf)
         struct claw_privbk *priv;
         struct claw_env *  p_env;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3101,7 +3101,7 @@ claw_hname_write(struct device *dev, struct device_attribute *attr,
         struct claw_privbk *priv;
         struct claw_env *  p_env;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3125,7 +3125,7 @@ claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf)
         struct claw_privbk *priv;
         struct claw_env *  p_env;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3139,7 +3139,7 @@ claw_adname_write(struct device *dev, struct device_attribute *attr,
         struct claw_privbk *priv;
         struct claw_env *  p_env;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3163,7 +3163,7 @@ claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf)
         struct claw_privbk *priv;
         struct claw_env *  p_env;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3178,7 +3178,7 @@ claw_apname_write(struct device *dev, struct device_attribute *attr,
         struct claw_privbk *priv;
         struct claw_env *  p_env;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3212,7 +3212,7 @@ claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf)
         struct claw_privbk *priv;
         struct claw_env * p_env;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3227,7 +3227,7 @@ claw_wbuff_write(struct device *dev, struct device_attribute *attr,
         struct claw_env *  p_env;
         int nnn,max;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3254,7 +3254,7 @@ claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf)
         struct claw_privbk *priv;
         struct claw_env *  p_env;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
@@ -3269,7 +3269,7 @@ claw_rbuff_write(struct device *dev, struct device_attribute *attr,
         struct claw_env *p_env;
         int nnn,max;
 
-        priv = dev->driver_data;
+        priv = dev_get_drvdata(dev);
         if (!priv)
                 return -ENODEV;
         p_env = priv->p_env;
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 07a25c3f94b..8c675905448 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -1936,7 +1936,7 @@ lcs_portno_show (struct device *dev, struct device_attribute *attr, char *buf)
 {
         struct lcs_card *card;
 
-        card = (struct lcs_card *)dev->driver_data;
+        card = dev_get_drvdata(dev);
 
         if (!card)
                 return 0;
@@ -1953,7 +1953,7 @@ lcs_portno_store (struct device *dev, struct device_attribute *attr, const char
         struct lcs_card *card;
         int value;
 
-        card = (struct lcs_card *)dev->driver_data;
+        card = dev_get_drvdata(dev);
 
         if (!card)
                 return 0;
@@ -1987,7 +1987,7 @@ lcs_timeout_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
         struct lcs_card *card;
 
-        card = (struct lcs_card *)dev->driver_data;
+        card = dev_get_drvdata(dev);
 
         return card ? sprintf(buf, "%u\n", card->lancmd_timeout) : 0;
 }
@@ -1998,7 +1998,7 @@ lcs_timeout_store (struct device *dev, struct device_attribute *attr, const char
         struct lcs_card *card;
         int value;
 
-        card = (struct lcs_card *)dev->driver_data;
+        card = dev_get_drvdata(dev);
 
         if (!card)
                 return 0;
@@ -2017,7 +2017,7 @@ static ssize_t
 lcs_dev_recover_store(struct device *dev, struct device_attribute *attr,
                       const char *buf, size_t count)
 {
-        struct lcs_card *card = dev->driver_data;
+        struct lcs_card *card = dev_get_drvdata(dev);
         char *tmp;
         int i;
 
@@ -2070,7 +2070,7 @@ lcs_probe_device(struct ccwgroup_device *ccwgdev)
                 put_device(&ccwgdev->dev);
                 return ret;
         }
-        ccwgdev->dev.driver_data = card;
+        dev_set_drvdata(&ccwgdev->dev, card);
         ccwgdev->cdev[0]->handler = lcs_irq;
         ccwgdev->cdev[1]->handler = lcs_irq;
         card->gdev = ccwgdev;
@@ -2087,7 +2087,7 @@ lcs_register_netdev(struct ccwgroup_device *ccwgdev)
         struct lcs_card *card;
 
         LCS_DBF_TEXT(2, setup, "regnetdv");
-        card = (struct lcs_card *)ccwgdev->dev.driver_data;
+        card = dev_get_drvdata(&ccwgdev->dev);
         if (card->dev->reg_state != NETREG_UNINITIALIZED)
                 return 0;
         SET_NETDEV_DEV(card->dev, &ccwgdev->dev);
@@ -2120,7 +2120,7 @@ lcs_new_device(struct ccwgroup_device *ccwgdev)
         enum lcs_dev_states recover_state;
         int rc;
 
-        card = (struct lcs_card *)ccwgdev->dev.driver_data;
+        card = dev_get_drvdata(&ccwgdev->dev);
         if (!card)
                 return -ENODEV;
 
@@ -2226,7 +2226,7 @@ __lcs_shutdown_device(struct ccwgroup_device *ccwgdev, int recovery_mode)
         int ret;
 
         LCS_DBF_TEXT(3, setup, "shtdndev");
-        card = (struct lcs_card *)ccwgdev->dev.driver_data;
+        card = dev_get_drvdata(&ccwgdev->dev);
         if (!card)
                 return -ENODEV;
         if (recovery_mode == 0) {
@@ -2293,7 +2293,7 @@ lcs_remove_device(struct ccwgroup_device *ccwgdev)
 {
         struct lcs_card *card;
 
-        card = (struct lcs_card *)ccwgdev->dev.driver_data;
+        card = dev_get_drvdata(&ccwgdev->dev);
         if (!card)
                 return;
 
diff --git a/drivers/s390/net/lcs.h b/drivers/s390/net/lcs.h
index d58fea52557..6d668642af2 100644
--- a/drivers/s390/net/lcs.h
+++ b/drivers/s390/net/lcs.h
@@ -34,8 +34,8 @@ static inline int lcs_dbf_passes(debug_info_t *dbf_grp, int level)
  *      sysfs related stuff
  */
 #define CARD_FROM_DEV(cdev) \
-        (struct lcs_card *) \
-        ((struct ccwgroup_device *)cdev->dev.driver_data)->dev.driver_data;
+        (struct lcs_card *) dev_get_drvdata( \
+                &((struct ccwgroup_device *)dev_get_drvdata(&cdev->dev))->dev);
 /**
  * CCW commands used in this driver
  */
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index fdb02d043d3..52574ce797b 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1452,7 +1452,7 @@ static int netiucv_change_mtu(struct net_device * dev, int new_mtu)
 static ssize_t user_show(struct device *dev, struct device_attribute *attr,
                          char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%s\n", netiucv_printname(priv->conn->userid));
@@ -1461,7 +1461,7 @@ static ssize_t user_show(struct device *dev, struct device_attribute *attr,
 static ssize_t user_write(struct device *dev, struct device_attribute *attr,
                           const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
         struct net_device *ndev = priv->conn->netdev;
         char    *p;
         char    *tmp;
@@ -1518,7 +1518,8 @@ static DEVICE_ATTR(user, 0644, user_show, user_write);
 
 static ssize_t buffer_show (struct device *dev, struct device_attribute *attr,
                             char *buf)
-{       struct netiucv_priv *priv = dev->driver_data;
+{
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%d\n", priv->conn->max_buffsize);
@@ -1527,7 +1528,7 @@ static ssize_t buffer_show (struct device *dev, struct device_attribute *attr,
 static ssize_t buffer_write (struct device *dev, struct device_attribute *attr,
                              const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
         struct net_device *ndev = priv->conn->netdev;
         char         *e;
         int          bs1;
@@ -1575,7 +1576,7 @@ static DEVICE_ATTR(buffer, 0644, buffer_show, buffer_write);
 static ssize_t dev_fsm_show (struct device *dev, struct device_attribute *attr,
                              char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%s\n", fsm_getstate_str(priv->fsm));
@@ -1586,7 +1587,7 @@ static DEVICE_ATTR(device_fsm_state, 0444, dev_fsm_show, NULL);
 static ssize_t conn_fsm_show (struct device *dev,
                               struct device_attribute *attr, char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%s\n", fsm_getstate_str(priv->conn->fsm));
@@ -1597,7 +1598,7 @@ static DEVICE_ATTR(connection_fsm_state, 0444, conn_fsm_show, NULL);
 static ssize_t maxmulti_show (struct device *dev,
                               struct device_attribute *attr, char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%ld\n", priv->conn->prof.maxmulti);
@@ -1607,7 +1608,7 @@ static ssize_t maxmulti_write (struct device *dev,
                                struct device_attribute *attr,
                                const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 4, __func__);
         priv->conn->prof.maxmulti = 0;
@@ -1619,7 +1620,7 @@ static DEVICE_ATTR(max_tx_buffer_used, 0644, maxmulti_show, maxmulti_write);
 static ssize_t maxcq_show (struct device *dev, struct device_attribute *attr,
                            char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%ld\n", priv->conn->prof.maxcqueue);
@@ -1628,7 +1629,7 @@ static ssize_t maxcq_show (struct device *dev, struct device_attribute *attr,
 static ssize_t maxcq_write (struct device *dev, struct device_attribute *attr,
                             const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 4, __func__);
         priv->conn->prof.maxcqueue = 0;
@@ -1640,7 +1641,7 @@ static DEVICE_ATTR(max_chained_skbs, 0644, maxcq_show, maxcq_write);
 static ssize_t sdoio_show (struct device *dev, struct device_attribute *attr,
                            char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%ld\n", priv->conn->prof.doios_single);
@@ -1649,7 +1650,7 @@ static ssize_t sdoio_show (struct device *dev, struct device_attribute *attr,
 static ssize_t sdoio_write (struct device *dev, struct device_attribute *attr,
                             const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 4, __func__);
         priv->conn->prof.doios_single = 0;
@@ -1661,7 +1662,7 @@ static DEVICE_ATTR(tx_single_write_ops, 0644, sdoio_show, sdoio_write);
 static ssize_t mdoio_show (struct device *dev, struct device_attribute *attr,
                            char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%ld\n", priv->conn->prof.doios_multi);
@@ -1670,7 +1671,7 @@ static ssize_t mdoio_show (struct device *dev, struct device_attribute *attr,
 static ssize_t mdoio_write (struct device *dev, struct device_attribute *attr,
                             const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         priv->conn->prof.doios_multi = 0;
@@ -1682,7 +1683,7 @@ static DEVICE_ATTR(tx_multi_write_ops, 0644, mdoio_show, mdoio_write);
 static ssize_t txlen_show (struct device *dev, struct device_attribute *attr,
                            char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%ld\n", priv->conn->prof.txlen);
@@ -1691,7 +1692,7 @@ static ssize_t txlen_show (struct device *dev, struct device_attribute *attr,
 static ssize_t txlen_write (struct device *dev, struct device_attribute *attr,
                             const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 4, __func__);
         priv->conn->prof.txlen = 0;
@@ -1703,7 +1704,7 @@ static DEVICE_ATTR(netto_bytes, 0644, txlen_show, txlen_write);
 static ssize_t txtime_show (struct device *dev, struct device_attribute *attr,
                             char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%ld\n", priv->conn->prof.tx_time);
@@ -1712,7 +1713,7 @@ static ssize_t txtime_show (struct device *dev, struct device_attribute *attr,
 static ssize_t txtime_write (struct device *dev, struct device_attribute *attr,
                              const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 4, __func__);
         priv->conn->prof.tx_time = 0;
@@ -1724,7 +1725,7 @@ static DEVICE_ATTR(max_tx_io_time, 0644, txtime_show, txtime_write);
 static ssize_t txpend_show (struct device *dev, struct device_attribute *attr,
                             char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%ld\n", priv->conn->prof.tx_pending);
@@ -1733,7 +1734,7 @@ static ssize_t txpend_show (struct device *dev, struct device_attribute *attr,
 static ssize_t txpend_write (struct device *dev, struct device_attribute *attr,
                              const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 4, __func__);
         priv->conn->prof.tx_pending = 0;
@@ -1745,7 +1746,7 @@ static DEVICE_ATTR(tx_pending, 0644, txpend_show, txpend_write);
 static ssize_t txmpnd_show (struct device *dev, struct device_attribute *attr,
                             char *buf)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 5, __func__);
         return sprintf(buf, "%ld\n", priv->conn->prof.tx_max_pending);
@@ -1754,7 +1755,7 @@ static ssize_t txmpnd_show (struct device *dev, struct device_attribute *attr,
 static ssize_t txmpnd_write (struct device *dev, struct device_attribute *attr,
                              const char *buf, size_t count)
 {
-        struct netiucv_priv *priv = dev->driver_data;
+        struct netiucv_priv *priv = dev_get_drvdata(dev);
 
         IUCV_DBF_TEXT(trace, 4, __func__);
         priv->conn->prof.tx_max_pending = 0;
@@ -1845,7 +1846,7 @@ static int netiucv_register_device(struct net_device *ndev)
         if (ret)
                 goto out_unreg;
         priv->dev = dev;
-        dev->driver_data = priv;
+        dev_set_drvdata(dev, priv);
         return 0;
 
 out_unreg:
diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c
index ed0e3e55652..538135783aa 100644
--- a/drivers/scsi/aha1740.c
+++ b/drivers/scsi/aha1740.c
@@ -646,7 +646,7 @@ static int aha1740_probe (struct device *dev)
 
 static __devexit int aha1740_remove (struct device *dev)
 {
-        struct Scsi_Host *shpnt = dev->driver_data;
+        struct Scsi_Host *shpnt = dev_get_drvdata(dev);
         struct aha1740_hostdata *host = HOSTDATA (shpnt);
 
         scsi_remove_host(shpnt);
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 11d2602ae88..869a11bdccb 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1877,7 +1877,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
         unsigned long wait_switch = 0;
         int rc;
 
-        vdev->dev.driver_data = NULL;
+        dev_set_drvdata(&vdev->dev, NULL);
 
         host = scsi_host_alloc(&driver_template, sizeof(*hostdata));
         if (!host) {
@@ -1949,7 +1949,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
                         scsi_scan_host(host);
         }
 
-        vdev->dev.driver_data = hostdata;
+        dev_set_drvdata(&vdev->dev, hostdata);
         return 0;
 
       add_srp_port_failed:
@@ -1968,7 +1968,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 
 static int ibmvscsi_remove(struct vio_dev *vdev)
 {
-        struct ibmvscsi_host_data *hostdata = vdev->dev.driver_data;
+        struct ibmvscsi_host_data *hostdata = dev_get_drvdata(&vdev->dev);
         unmap_persist_bufs(hostdata);
         release_event_pool(&hostdata->pool, hostdata);
         ibmvscsi_ops->release_crq_queue(&hostdata->queue, hostdata,
diff --git a/drivers/scsi/ibmvscsi/ibmvstgt.c b/drivers/scsi/ibmvscsi/ibmvstgt.c
index e2dd6a45924..d5eaf972710 100644
--- a/drivers/scsi/ibmvscsi/ibmvstgt.c
+++ b/drivers/scsi/ibmvscsi/ibmvstgt.c
@@ -892,7 +892,7 @@ free_vport:
 
 static int ibmvstgt_remove(struct vio_dev *dev)
 {
-        struct srp_target *target = (struct srp_target *) dev->dev.driver_data;
+        struct srp_target *target = dev_get_drvdata(&dev->dev);
         struct Scsi_Host *shost = target->shost;
         struct vio_port *vport = target->ldata;
 
diff --git a/drivers/scsi/libsrp.c b/drivers/scsi/libsrp.c
index 15e2d132e8b..2742ae8a3d0 100644
--- a/drivers/scsi/libsrp.c
+++ b/drivers/scsi/libsrp.c
@@ -135,7 +135,7 @@ int srp_target_alloc(struct srp_target *target, struct device *dev,
         INIT_LIST_HEAD(&target->cmd_queue);
 
         target->dev = dev;
-        target->dev->driver_data = target;
+        dev_set_drvdata(target->dev, target);
 
         target->srp_iu_size = iu_size;
         target->rx_ring_size = nr;
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 2b02b1fb39a..8d0f0de76b6 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -53,8 +53,7 @@
  * debugfs interface
  *
  * To access this interface the user should:
- * # mkdir /debug
- * # mount -t debugfs none /debug
+ * # mount -t debugfs none /sys/kernel/debug
  *
  * The lpfc debugfs directory hierarchy is:
  * lpfc/lpfcX/vportY
diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c
index 14f8fa9135b..54483cd3529 100644
--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -122,7 +122,7 @@ static int __devinit of_platform_serial_probe(struct of_device *ofdev,
 
         info->type = port_type;
         info->line = ret;
-        ofdev->dev.driver_data = info;
+        dev_set_drvdata(&ofdev->dev, info);
         return 0;
 out:
         kfree(info);
@@ -135,7 +135,7 @@ out:
  */
 static int of_platform_serial_remove(struct of_device *ofdev)
 {
-        struct of_serial_info *info = ofdev->dev.driver_data;
+        struct of_serial_info *info = dev_get_drvdata(&ofdev->dev);
         switch (info->type) {
 #ifdef CONFIG_SERIAL_8250
         case PORT_8250 ... PORT_MAX_8250:
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 5e38ba10a3a..0a69672097a 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -417,7 +417,7 @@ static LIST_HEAD(thermal_hwmon_list);
 static ssize_t
 name_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
-        struct thermal_hwmon_device *hwmon = dev->driver_data;
+        struct thermal_hwmon_device *hwmon = dev_get_drvdata(dev);
         return sprintf(buf, "%s\n", hwmon->type);
 }
 static DEVICE_ATTR(name, 0444, name_show, NULL);
@@ -488,7 +488,7 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
                 result = PTR_ERR(hwmon->device);
                 goto free_mem;
         }
-        hwmon->device->driver_data = hwmon;
+        dev_set_drvdata(hwmon->device, hwmon);
         result = device_create_file(hwmon->device, &dev_attr_name);
         if (result)
                 goto unregister_hwmon_device;
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index 9cf9ff69e3e..d171b563e94 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -306,6 +306,7 @@ enum {
 #define FW_GET_BYTE(p)  *((__u8 *) (p))
 
 #define FW_DIR "ueagle-atm/"
+#define UEA_FW_NAME_MAX 30
 #define NB_MODEM 4
 
 #define BULK_TIMEOUT 300
@@ -1564,9 +1565,9 @@ static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
                 file = cmv_file[sc->modem_index];
 
         strcpy(cmv_name, FW_DIR);
-        strlcat(cmv_name, file, FIRMWARE_NAME_MAX);
+        strlcat(cmv_name, file, UEA_FW_NAME_MAX);
         if (ver == 2)
-                strlcat(cmv_name, ".v2", FIRMWARE_NAME_MAX);
+                strlcat(cmv_name, ".v2", UEA_FW_NAME_MAX);
 }
 
 static int request_cmvs_old(struct uea_softc *sc,
@@ -1574,7 +1575,7 @@ static int request_cmvs_old(struct uea_softc *sc,
 {
         int ret, size;
         u8 *data;
-        char cmv_name[FIRMWARE_NAME_MAX]; /* 30 bytes stack variable */
+        char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
 
         cmvs_file_name(sc, cmv_name, 1);
         ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
@@ -1608,7 +1609,7 @@ static int request_cmvs(struct uea_softc *sc,
         int ret, size;
         u32 crc;
         u8 *data;
-        char cmv_name[FIRMWARE_NAME_MAX]; /* 30 bytes stack variable */
+        char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
 
         cmvs_file_name(sc, cmv_name, 2);
         ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index d2747a49b97..26c09f0257d 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -1057,8 +1057,14 @@ static const struct file_operations usblp_fops = {
         .release =      usblp_release,
 };
 
+static char *usblp_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
+}
+
 static struct usb_class_driver usblp_class = {
         .name =         "lp%d",
+        .nodename =     usblp_nodename,
         .fops =         &usblp_fops,
         .minor_base =   USBLP_MINOR_BASE,
 };
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 997e659ff69..5cef88929b3 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -67,6 +67,16 @@ static struct usb_class {
         struct class *class;
 } *usb_class;
 
+static char *usb_nodename(struct device *dev)
+{
+        struct usb_class_driver *drv;
+
+        drv = dev_get_drvdata(dev);
+        if (!drv || !drv->nodename)
+                return NULL;
+        return drv->nodename(dev);
+}
+
 static int init_usb_class(void)
 {
         int result = 0;
@@ -90,6 +100,7 @@ static int init_usb_class(void)
                 kfree(usb_class);
                 usb_class = NULL;
         }
+        usb_class->class->nodename = usb_nodename;
 
 exit:
         return result;
@@ -198,7 +209,7 @@ int usb_register_dev(struct usb_interface *intf,
         else
                 temp = name;
         intf->usb_dev = device_create(usb_class->class, &intf->dev,
-                                      MKDEV(USB_MAJOR, minor), NULL,
+                                      MKDEV(USB_MAJOR, minor), class_driver,
                                       "%s", temp);
         if (IS_ERR(intf->usb_dev)) {
                 down_write(&minor_rwsem);
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 7eee400d3e3..927a27dd2f8 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -305,10 +305,21 @@ static struct dev_pm_ops usb_device_pm_ops = {
 
 #endif  /* CONFIG_PM */
 
+
+static char *usb_nodename(struct device *dev)
+{
+        struct usb_device *usb_dev;
+
+        usb_dev = to_usb_device(dev);
+        return kasprintf(GFP_KERNEL, "bus/usb/%03d/%03d",
+                         usb_dev->bus->busnum, usb_dev->devnum);
+}
+
 struct device_type usb_device_type = {
         .name =         "usb_device",
         .release =      usb_release_dev,
         .uevent =       usb_dev_uevent,
+        .nodename =     usb_nodename,
         .pm =           &usb_device_pm_ops,
 };
 
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 0b2bb8f0706..53bcdd2f828 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1574,7 +1574,7 @@ int usb_gadget_register_driver (struct usb_gadget_driver *driver)
 
         udc->driver = driver;
         udc->gadget.dev.driver = &driver->driver;
-        udc->gadget.dev.driver_data = &driver->driver;
+        dev_set_drvdata(&udc->gadget.dev, &driver->driver);
         udc->enabled = 1;
         udc->selfpowered = 1;
 
@@ -1583,7 +1583,7 @@ int usb_gadget_register_driver (struct usb_gadget_driver *driver)
                 DBG("driver->bind() returned %d\n", retval);
                 udc->driver = NULL;
                 udc->gadget.dev.driver = NULL;
-                udc->gadget.dev.driver_data = NULL;
+                dev_set_drvdata(&udc->gadget.dev, NULL);
                 udc->enabled = 0;
                 udc->selfpowered = 0;
                 return retval;
@@ -1613,7 +1613,7 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
 
         driver->unbind(&udc->gadget);
         udc->gadget.dev.driver = NULL;
-        udc->gadget.dev.driver_data = NULL;
+        dev_set_drvdata(&udc->gadget.dev, NULL);
         udc->driver = NULL;
 
         DBG("unbound from %s\n", driver->driver.name);
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index a4ef77ef917..3c5fe5cee05 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -726,12 +726,18 @@ static const struct file_operations iowarrior_fops = {
         .poll = iowarrior_poll,
 };
 
+static char *iowarrior_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
+}
+
 /*
  * usb class driver info in order to get a minor number from the usb core,
  * and to have the device registered with devfs and the driver core
  */
 static struct usb_class_driver iowarrior_class = {
         .name = "iowarrior%d",
+        .nodename = iowarrior_nodename,
         .fops = &iowarrior_fops,
         .minor_base = IOWARRIOR_MINOR_BASE,
 };
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index ab0f3226158..c1e2433f640 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -266,12 +266,18 @@ static const struct file_operations tower_fops = {
         .llseek =       tower_llseek,
 };
 
+static char *legousbtower_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
+}
+
 /*
  * usb class driver info in order to get a minor number from the usb core,
  * and to have the device registered with the driver core
  */
 static struct usb_class_driver tower_class = {
         .name =         "legousbtower%d",
+        .nodename =     legousbtower_nodename,
         .fops =         &tower_fops,
         .minor_base =   LEGO_USB_TOWER_MINOR_BASE,
 };
diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index 2493f05e9f6..15502d5e364 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -384,7 +384,7 @@ static int __devinit xenfb_probe(struct xenbus_device *dev,
                 fb_size = XENFB_DEFAULT_FB_LEN;
         }
 
-        dev->dev.driver_data = info;
+        dev_set_drvdata(&dev->dev, info);
         info->xbdev = dev;
         info->irq = -1;
         info->x1 = info->y1 = INT_MAX;
@@ -503,7 +503,7 @@ xenfb_make_preferred_console(void)
 
 static int xenfb_resume(struct xenbus_device *dev)
 {
-        struct xenfb_info *info = dev->dev.driver_data;
+        struct xenfb_info *info = dev_get_drvdata(&dev->dev);
 
         xenfb_disconnect_backend(info);
         xenfb_init_shared_page(info, info->fb_info);
@@ -512,7 +512,7 @@ static int xenfb_resume(struct xenbus_device *dev)
 
 static int xenfb_remove(struct xenbus_device *dev)
 {
-        struct xenfb_info *info = dev->dev.driver_data;
+        struct xenfb_info *info = dev_get_drvdata(&dev->dev);
 
         xenfb_disconnect_backend(info);
         if (info->fb_info) {
@@ -621,7 +621,7 @@ static void xenfb_disconnect_backend(struct xenfb_info *info)
 static void xenfb_backend_changed(struct xenbus_device *dev,
                                   enum xenbus_state backend_state)
 {
-        struct xenfb_info *info = dev->dev.driver_data;
+        struct xenfb_info *info = dev_get_drvdata(&dev->dev);
         int val;
 
         switch (backend_state) {
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 33a90120f6a..4d74fc72c19 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -67,6 +67,8 @@ static int debugfs_u8_get(void *data, u64 *val)
         return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_u8, debugfs_u8_get, debugfs_u8_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_u8_ro, debugfs_u8_get, NULL, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_u8_wo, NULL, debugfs_u8_set, "%llu\n");
 
 /**
  * debugfs_create_u8 - create a debugfs file that is used to read and write an unsigned 8-bit value
@@ -95,6 +97,13 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u8, debugfs_u8_get, debugfs_u8_set, "%llu\n");
 struct dentry *debugfs_create_u8(const char *name, mode_t mode,
                                  struct dentry *parent, u8 *value)
 {
+        /* if there are no write bits set, make read only */
+        if (!(mode & S_IWUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_u8_ro);
+        /* if there are no read bits set, make write only */
+        if (!(mode & S_IRUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_u8_wo);
+
         return debugfs_create_file(name, mode, parent, value, &fops_u8);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u8);
@@ -110,6 +119,8 @@ static int debugfs_u16_get(void *data, u64 *val)
         return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_u16, debugfs_u16_get, debugfs_u16_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_u16_ro, debugfs_u16_get, NULL, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_u16_wo, NULL, debugfs_u16_set, "%llu\n");
 
 /**
  * debugfs_create_u16 - create a debugfs file that is used to read and write an unsigned 16-bit value
@@ -138,6 +149,13 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u16, debugfs_u16_get, debugfs_u16_set, "%llu\n");
 struct dentry *debugfs_create_u16(const char *name, mode_t mode,
                                   struct dentry *parent, u16 *value)
 {
+        /* if there are no write bits set, make read only */
+        if (!(mode & S_IWUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_u16_ro);
+        /* if there are no read bits set, make write only */
+        if (!(mode & S_IRUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_u16_wo);
+
         return debugfs_create_file(name, mode, parent, value, &fops_u16);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u16);
@@ -153,6 +171,8 @@ static int debugfs_u32_get(void *data, u64 *val)
         return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_u32, debugfs_u32_get, debugfs_u32_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_u32_ro, debugfs_u32_get, NULL, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_u32_wo, NULL, debugfs_u32_set, "%llu\n");
 
 /**
  * debugfs_create_u32 - create a debugfs file that is used to read and write an unsigned 32-bit value
@@ -181,6 +201,13 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u32, debugfs_u32_get, debugfs_u32_set, "%llu\n");
 struct dentry *debugfs_create_u32(const char *name, mode_t mode,
                                  struct dentry *parent, u32 *value)
 {
+        /* if there are no write bits set, make read only */
+        if (!(mode & S_IWUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_u32_ro);
+        /* if there are no read bits set, make write only */
+        if (!(mode & S_IRUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_u32_wo);
+
         return debugfs_create_file(name, mode, parent, value, &fops_u32);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u32);
@@ -197,6 +224,8 @@ static int debugfs_u64_get(void *data, u64 *val)
         return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_u64, debugfs_u64_get, debugfs_u64_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_u64_ro, debugfs_u64_get, NULL, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
 
 /**
  * debugfs_create_u64 - create a debugfs file that is used to read and write an unsigned 64-bit value
@@ -225,15 +254,28 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u64, debugfs_u64_get, debugfs_u64_set, "%llu\n");
 struct dentry *debugfs_create_u64(const char *name, mode_t mode,
                                  struct dentry *parent, u64 *value)
 {
+        /* if there are no write bits set, make read only */
+        if (!(mode & S_IWUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_u64_ro);
+        /* if there are no read bits set, make write only */
+        if (!(mode & S_IRUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_u64_wo);
+
         return debugfs_create_file(name, mode, parent, value, &fops_u64);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u64);
 
 DEFINE_SIMPLE_ATTRIBUTE(fops_x8, debugfs_u8_get, debugfs_u8_set, "0x%02llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_x8_ro, debugfs_u8_get, NULL, "0x%02llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_x8_wo, NULL, debugfs_u8_set, "0x%02llx\n");
 
 DEFINE_SIMPLE_ATTRIBUTE(fops_x16, debugfs_u16_get, debugfs_u16_set, "0x%04llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_x16_ro, debugfs_u16_get, NULL, "0x%04llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_x16_wo, NULL, debugfs_u16_set, "0x%04llx\n");
 
 DEFINE_SIMPLE_ATTRIBUTE(fops_x32, debugfs_u32_get, debugfs_u32_set, "0x%08llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_x32_ro, debugfs_u32_get, NULL, "0x%08llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_x32_wo, NULL, debugfs_u32_set, "0x%08llx\n");
 
 /*
  * debugfs_create_x{8,16,32} - create a debugfs file that is used to read and write an unsigned {8,16,32}-bit value
@@ -256,6 +298,13 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_x32, debugfs_u32_get, debugfs_u32_set, "0x%08llx\n"
 struct dentry *debugfs_create_x8(const char *name, mode_t mode,
                                  struct dentry *parent, u8 *value)
 {
+        /* if there are no write bits set, make read only */
+        if (!(mode & S_IWUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_x8_ro);
+        /* if there are no read bits set, make write only */
+        if (!(mode & S_IRUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_x8_wo);
+
         return debugfs_create_file(name, mode, parent, value, &fops_x8);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_x8);
@@ -273,6 +322,13 @@ EXPORT_SYMBOL_GPL(debugfs_create_x8);
 struct dentry *debugfs_create_x16(const char *name, mode_t mode,
                                  struct dentry *parent, u16 *value)
 {
+        /* if there are no write bits set, make read only */
+        if (!(mode & S_IWUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_x16_ro);
+        /* if there are no read bits set, make write only */
+        if (!(mode & S_IRUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_x16_wo);
+
         return debugfs_create_file(name, mode, parent, value, &fops_x16);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_x16);
@@ -290,6 +346,13 @@ EXPORT_SYMBOL_GPL(debugfs_create_x16);
 struct dentry *debugfs_create_x32(const char *name, mode_t mode,
                                  struct dentry *parent, u32 *value)
 {
+        /* if there are no write bits set, make read only */
+        if (!(mode & S_IWUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_x32_ro);
+        /* if there are no read bits set, make write only */
+        if (!(mode & S_IRUGO))
+                return debugfs_create_file(name, mode, parent, value, &fops_x32_wo);
+
         return debugfs_create_file(name, mode, parent, value, &fops_x32);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_x32);
@@ -419,7 +482,7 @@ static const struct file_operations fops_blob = {
 };
 
 /**
- * debugfs_create_blob - create a debugfs file that is used to read and write a binary blob
+ * debugfs_create_blob - create a debugfs file that is used to read a binary blob
  * @name: a pointer to a string containing the name of the file to create.
  * @mode: the permission that the file should have
  * @parent: a pointer to the parent dentry for this file.  This should be a
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 0662ba6de85..d22438ef767 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -403,6 +403,7 @@ void debugfs_remove_recursive(struct dentry *dentry)
                 }
                 child = list_entry(parent->d_subdirs.next, struct dentry,
                                 d_u.d_child);
+ next_sibling:
 
                 /*
                  * If "child" isn't empty, walk down the tree and
@@ -417,6 +418,16 @@ void debugfs_remove_recursive(struct dentry *dentry)
                 __debugfs_remove(child, parent);
                 if (parent->d_subdirs.next == &child->d_u.d_child) {
                         /*
+                         * Try the next sibling.
+                         */
+                        if (child->d_u.d_child.next != &parent->d_subdirs) {
+                                child = list_entry(child->d_u.d_child.next,
+                                                   struct dentry,
+                                                   d_u.d_child);
+                                goto next_sibling;
+                        }
+
+                        /*
                          * Avoid infinite loop if we fail to remove
                          * one dentry.
                          */
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index a3ba217fbe7..1d897ad808e 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -192,8 +192,11 @@ static void *sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
         int error = -ENOMEM;
         unsigned long page = get_zeroed_page(GFP_KERNEL);
-        if (page)
+        if (page) {
                 error = sysfs_getlink(dentry, (char *) page); 
+                if (error < 0)
+                        free_page((unsigned long)page);
+        }
         nd_set_link(nd, error ? ERR_PTR(error) : (char *)page);
         return NULL;
 }
diff --git a/include/linux/device.h b/include/linux/device.h
index a4a7b10aaa4..ed4e39f2c42 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -114,6 +114,8 @@ extern int bus_unregister_notifier(struct bus_type *bus,
 #define BUS_NOTIFY_BOUND_DRIVER         0x00000003 /* driver bound to device */
 #define BUS_NOTIFY_UNBIND_DRIVER        0x00000004 /* driver about to be
                                                       unbound */
+#define BUS_NOTIFY_UNBOUND_DRIVER       0x00000005 /* driver is unbound
+                                                      from the device */
 
 extern struct kset *bus_get_kset(struct bus_type *bus);
 extern struct klist *bus_get_device_klist(struct bus_type *bus);
@@ -192,6 +194,7 @@ struct class {
         struct kobject                  *dev_kobj;
 
         int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
+        char *(*nodename)(struct device *dev);
 
         void (*class_release)(struct class *class);
         void (*dev_release)(struct device *dev);
@@ -287,6 +290,7 @@ struct device_type {
         const char *name;
         struct attribute_group **groups;
         int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
+        char *(*nodename)(struct device *dev);
         void (*release)(struct device *dev);
 
         struct dev_pm_ops *pm;
@@ -486,6 +490,7 @@ extern struct device *device_find_child(struct device *dev, void *data,
 extern int device_rename(struct device *dev, char *new_name);
 extern int device_move(struct device *dev, struct device *new_parent,
                        enum dpm_order dpm_order);
+extern const char *device_get_nodename(struct device *dev, const char **tmp);
 
 /*
  * Root device objects for grouping under /sys/devices
diff --git a/include/linux/eisa.h b/include/linux/eisa.h
index e61c0be2a45..6925249a5ac 100644
--- a/include/linux/eisa.h
+++ b/include/linux/eisa.h
@@ -78,12 +78,12 @@ static inline void eisa_driver_unregister (struct eisa_driver *edrv) { }
 /* Mimics pci.h... */
 static inline void *eisa_get_drvdata (struct eisa_device *edev)
 {
-        return edev->dev.driver_data;
+        return dev_get_drvdata(&edev->dev);
 }
 
 static inline void eisa_set_drvdata (struct eisa_device *edev, void *data)
 {
-        edev->dev.driver_data = data;
+        dev_set_drvdata(&edev->dev, data);
 }
 
 /* The EISA root device. There's rumours about machines with multiple
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index c8ecf5b2a20..d3154462843 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -5,7 +5,6 @@
 #include <linux/types.h>
 #include <linux/compiler.h>
 
-#define FIRMWARE_NAME_MAX 30 
 #define FW_ACTION_NOHOTPLUG 0
 #define FW_ACTION_HOTPLUG 1
 
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 7cbd38d363a..45fc320a53c 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -142,7 +142,7 @@ struct gendisk {
                                          * disks that can't be partitioned. */
 
         char disk_name[DISK_NAME_LEN];  /* name of major driver */
-
+        char *(*nodename)(struct gendisk *gd);
         /* Array of pointers to partitions indexed by partno.
          * Protected with matching bdev lock but stat and other
          * non-critical accesses use RCU.  Always access through
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 1b2e1747df1..c5a71c38a95 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -408,7 +408,7 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
  *
  * Use tracing_on/tracing_off when you want to quickly turn on or off
  * tracing. It simply enables or disables the recording of the trace events.
- * This also corresponds to the user space debugfs/tracing/tracing_on
+ * This also corresponds to the user space /sys/kernel/debug/tracing/tracing_on
  * file, which gives a means for the kernel and userspace to interact.
  * Place a tracing_off() in the kernel where you want tracing to end.
  * From user space, examine the trace, and then echo 1 > tracing_on
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index beb6ec99cfe..05211774462 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -41,6 +41,7 @@ struct miscdevice  {
         struct list_head list;
         struct device *parent;
         struct device *this_device;
+        const char *devnode;
 };
 
 extern int misc_register(struct miscdevice * misc);
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index b67bb5d7b22..8dc5123b630 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -36,8 +36,8 @@ extern struct device platform_bus;
 
 extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int);
 extern int platform_get_irq(struct platform_device *, unsigned int);
-extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, char *);
-extern int platform_get_irq_byname(struct platform_device *, char *);
+extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, const char *);
+extern int platform_get_irq_byname(struct platform_device *, const char *);
 extern int platform_add_devices(struct platform_device **, int);
 
 extern struct platform_device *platform_device_register_simple(const char *, int id,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c900aa53007..7531b1c2820 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -674,7 +674,7 @@ struct user_struct {
         struct task_group *tg;
 #ifdef CONFIG_SYSFS
         struct kobject kobj;
-        struct work_struct work;
+        struct delayed_work work;
 #endif
 #endif
 
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 14df7e635d4..b9dc4ca0246 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -198,7 +198,7 @@ static inline void tracepoint_synchronize_unregister(void)
  *      * This is how the trace record is structured and will
  *      * be saved into the ring buffer. These are the fields
  *      * that will be exposed to user-space in
- *      * /debug/tracing/events/<*>/format.
+ *      * /sys/kernel/debug/tracing/events/<*>/format.
  *      *
  *      * The declared 'local variable' is called '__entry'
  *      *
@@ -258,7 +258,7 @@ static inline void tracepoint_synchronize_unregister(void)
  * tracepoint callback (this is used by programmatic plugins and
  * can also by used by generic instrumentation like SystemTap), and
  * it is also used to expose a structured trace record in
- * /debug/tracing/events/.
+ * /sys/kernel/debug/tracing/events/.
  */
 
 #define TRACE_EVENT(name, proto, args, struct, assign, print)   \
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 3aa2cd1f8d0..34cdfcac455 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -869,6 +869,8 @@ struct usb_driver {
  * struct usb_device_driver - identifies USB device driver to usbcore
  * @name: The driver name should be unique among USB drivers,
  *      and should normally be the same as the module name.
+ * @nodename: Callback to provide a naming hint for a possible
+ *      device node to create.
  * @probe: Called to see if the driver is willing to manage a particular
  *      device.  If it is, probe returns zero and uses dev_set_drvdata()
  *      to associate driver-specific data with the device.  If unwilling
@@ -912,6 +914,7 @@ extern struct bus_type usb_bus_type;
  */
 struct usb_class_driver {
         char *name;
+        char *(*nodename)(struct device *dev);
         const struct file_operations *fops;
         int minor_base;
 };
diff --git a/init/Kconfig b/init/Kconfig
index fed6dc31b0d..c4b3c6d51a7 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -616,13 +616,13 @@ config SYSFS_DEPRECATED
         bool
 
 config SYSFS_DEPRECATED_V2
-        bool "Create deprecated sysfs layout for older userspace tools"
+        bool "remove sysfs features which may confuse old userspace tools"
         depends on SYSFS
-        default y
+        default n
         select SYSFS_DEPRECATED
         help
           This option switches the layout of sysfs to the deprecated
-          version.
+          version. Do not use it on recent distributions.
 
           The current sysfs layout features a unified device tree at
           /sys/devices/, which is able to express a hierarchy between
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 4a13e5a01ce..61071fecc82 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -147,7 +147,7 @@ config IRQSOFF_TRACER
           disabled by default and can be runtime (re-)started
           via:
 
-              echo 0 > /debugfs/tracing/tracing_max_latency
+              echo 0 > /sys/kernel/debug/tracing/tracing_max_latency
 
           (Note that kernel size and overhead increases with this option
           enabled. This option and the preempt-off timing option can be
@@ -168,7 +168,7 @@ config PREEMPT_TRACER
           disabled by default and can be runtime (re-)started
           via:
 
-              echo 0 > /debugfs/tracing/tracing_max_latency
+              echo 0 > /sys/kernel/debug/tracing/tracing_max_latency
 
           (Note that kernel size and overhead increases with this option
           enabled. This option and the irqs-off timing option can be
@@ -261,7 +261,7 @@ config PROFILE_ANNOTATED_BRANCHES
           This tracer profiles all the the likely and unlikely macros
           in the kernel. It will display the results in:
 
-          /debugfs/tracing/profile_annotated_branch
+          /sys/kernel/debug/tracing/profile_annotated_branch
 
           Note: this will add a significant overhead, only turn this
           on if you need to profile the system's use of these macros.
@@ -274,7 +274,7 @@ config PROFILE_ALL_BRANCHES
           taken in the kernel is recorded whether it hit or miss.
           The results will be displayed in:
 
-          /debugfs/tracing/profile_branch
+          /sys/kernel/debug/tracing/profile_branch
 
           This option also enables the likely/unlikely profiler.
 
@@ -323,7 +323,7 @@ config STACK_TRACER
         select KALLSYMS
         help
           This special tracer records the maximum stack footprint of the
-          kernel and displays it in debugfs/tracing/stack_trace.
+          kernel and displays it in /sys/kernel/debug/tracing/stack_trace.
 
           This tracer works by hooking into every function call that the
           kernel executes, and keeping a maximum stack depth value and
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8acd9b81a5d..c1878bfb2e1 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -344,7 +344,7 @@ static raw_spinlock_t ftrace_max_lock =
 /*
  * Copy the new maximum trace into the separate maximum-trace
  * structure. (this way the maximum trace is permanently saved,
- * for later retrieval via /debugfs/tracing/latency_trace)
+ * for later retrieval via /sys/kernel/debug/tracing/latency_trace)
  */
 static void
 __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
@@ -2414,21 +2414,20 @@ static const struct file_operations tracing_iter_fops = {
 
 static const char readme_msg[] =
         "tracing mini-HOWTO:\n\n"
-        "# mkdir /debug\n"
-        "# mount -t debugfs nodev /debug\n\n"
-        "# cat /debug/tracing/available_tracers\n"
+        "# mount -t debugfs nodev /sys/kernel/debug\n\n"
+        "# cat /sys/kernel/debug/tracing/available_tracers\n"
         "wakeup preemptirqsoff preemptoff irqsoff function sched_switch nop\n\n"
-        "# cat /debug/tracing/current_tracer\n"
+        "# cat /sys/kernel/debug/tracing/current_tracer\n"
         "nop\n"
-        "# echo sched_switch > /debug/tracing/current_tracer\n"
-        "# cat /debug/tracing/current_tracer\n"
+        "# echo sched_switch > /sys/kernel/debug/tracing/current_tracer\n"
+        "# cat /sys/kernel/debug/tracing/current_tracer\n"
         "sched_switch\n"
-        "# cat /debug/tracing/trace_options\n"
+        "# cat /sys/kernel/debug/tracing/trace_options\n"
         "noprint-parent nosym-offset nosym-addr noverbose\n"
-        "# echo print-parent > /debug/tracing/trace_options\n"
-        "# echo 1 > /debug/tracing/tracing_enabled\n"
-        "# cat /debug/tracing/trace > /tmp/trace.txt\n"
-        "# echo 0 > /debug/tracing/tracing_enabled\n"
+        "# echo print-parent > /sys/kernel/debug/tracing/trace_options\n"
+        "# echo 1 > /sys/kernel/debug/tracing/tracing_enabled\n"
+        "# cat /sys/kernel/debug/tracing/trace > /tmp/trace.txt\n"
+        "# echo 0 > /sys/kernel/debug/tracing/tracing_enabled\n"
 ;
 
 static ssize_t
diff --git a/kernel/user.c b/kernel/user.c
index 850e0ba41c1..2c000e7132a 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -75,21 +75,6 @@ static void uid_hash_remove(struct user_struct *up)
         put_user_ns(up->user_ns);
 }
 
-static struct user_struct *uid_hash_find(uid_t uid, struct hlist_head *hashent)
-{
-        struct user_struct *user;
-        struct hlist_node *h;
-
-        hlist_for_each_entry(user, h, hashent, uidhash_node) {
-                if (user->uid == uid) {
-                        atomic_inc(&user->__count);
-                        return user;
-                }
-        }
-
-        return NULL;
-}
-
 #ifdef CONFIG_USER_SCHED
 
 static void sched_destroy_user(struct user_struct *up)
@@ -119,6 +104,23 @@ static int sched_create_user(struct user_struct *up) { return 0; }
 
 #if defined(CONFIG_USER_SCHED) && defined(CONFIG_SYSFS)
 
+static struct user_struct *uid_hash_find(uid_t uid, struct hlist_head *hashent)
+{
+        struct user_struct *user;
+        struct hlist_node *h;
+
+        hlist_for_each_entry(user, h, hashent, uidhash_node) {
+                if (user->uid == uid) {
+                        /* possibly resurrect an "almost deleted" object */
+                        if (atomic_inc_return(&user->__count) == 1)
+                                cancel_delayed_work(&user->work);
+                        return user;
+                }
+        }
+
+        return NULL;
+}
+
 static struct kset *uids_kset; /* represents the /sys/kernel/uids/ directory */
 static DEFINE_MUTEX(uids_mutex);
 
@@ -283,12 +285,12 @@ int __init uids_sysfs_init(void)
         return uids_user_create(&root_user);
 }
 
-/* work function to remove sysfs directory for a user and free up
+/* delayed work function to remove sysfs directory for a user and free up
  * corresponding structures.
  */
 static void cleanup_user_struct(struct work_struct *w)
 {
-        struct user_struct *up = container_of(w, struct user_struct, work);
+        struct user_struct *up = container_of(w, struct user_struct, work.work);
         unsigned long flags;
         int remove_user = 0;
 
@@ -297,15 +299,12 @@ static void cleanup_user_struct(struct work_struct *w)
          */
         uids_mutex_lock();
 
-        local_irq_save(flags);
-
-        if (atomic_dec_and_lock(&up->__count, &uidhash_lock)) {
+        spin_lock_irqsave(&uidhash_lock, flags);
+        if (atomic_read(&up->__count) == 0) {
                 uid_hash_remove(up);
                 remove_user = 1;
-                spin_unlock_irqrestore(&uidhash_lock, flags);
-        } else {
-                local_irq_restore(flags);
         }
+        spin_unlock_irqrestore(&uidhash_lock, flags);
 
         if (!remove_user)
                 goto done;
@@ -331,16 +330,28 @@ done:
  */
 static void free_user(struct user_struct *up, unsigned long flags)
 {
-        /* restore back the count */
-        atomic_inc(&up->__count);
         spin_unlock_irqrestore(&uidhash_lock, flags);
-
-        INIT_WORK(&up->work, cleanup_user_struct);
-        schedule_work(&up->work);
+        INIT_DELAYED_WORK(&up->work, cleanup_user_struct);
+        schedule_delayed_work(&up->work, msecs_to_jiffies(1000));
 }
 
 #else   /* CONFIG_USER_SCHED && CONFIG_SYSFS */
 
+static struct user_struct *uid_hash_find(uid_t uid, struct hlist_head *hashent)
+{
+        struct user_struct *user;
+        struct hlist_node *h;
+
+        hlist_for_each_entry(user, h, hashent, uidhash_node) {
+                if (user->uid == uid) {
+                        atomic_inc(&user->__count);
+                        return user;
+                }
+        }
+
+        return NULL;
+}
+
 int uids_sysfs_init(void) { return 0; }
 static inline int uids_user_create(struct user_struct *up) { return 0; }
 static inline void uids_mutex_lock(void) { }
diff --git a/lib/kobject.c b/lib/kobject.c
index bacf6fe4f7a..b512b746d2a 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -793,11 +793,16 @@ static struct kset *kset_create(const char *name,
                                 struct kobject *parent_kobj)
 {
         struct kset *kset;
+        int retval;
 
         kset = kzalloc(sizeof(*kset), GFP_KERNEL);
         if (!kset)
                 return NULL;
-        kobject_set_name(&kset->kobj, name);
+        retval = kobject_set_name(&kset->kobj, name);
+        if (retval) {
+                kfree(kset);
+                return NULL;
+        }
         kset->uevent_ops = uevent_ops;
         kset->kobj.parent = parent_kobj;
 
diff --git a/samples/Kconfig b/samples/Kconfig
index b75d28cba3f..428b065ba69 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -26,7 +26,8 @@ config SAMPLE_TRACE_EVENTS
           This build trace event example modules.
 
 config SAMPLE_KOBJECT
-        tristate "Build kobject examples"
+        tristate "Build kobject examples -- loadable modules only"
+        depends on m
         help
           This config option will allow you to build a number of
           different kobject sample modules showing how to use kobjects,
diff --git a/samples/firmware_class/firmware_sample_driver.c b/samples/firmware_class/firmware_sample_driver.c
deleted file mode 100644
index 219a2989660..00000000000
--- a/samples/firmware_class/firmware_sample_driver.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * firmware_sample_driver.c -
- *
- * Copyright (c) 2003 Manuel Estrada Sainz
- *
- * Sample code on how to use request_firmware() from drivers.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/string.h>
-#include <linux/firmware.h>
-
-static struct device ghost_device = {
-        .bus_id    = "ghost0",
-};
-
-
-static void sample_firmware_load(char *firmware, int size)
-{
-        u8 buf[size+1];
-        memcpy(buf, firmware, size);
-        buf[size] = '\0';
-        printk(KERN_INFO "firmware_sample_driver: firmware: %s\n", buf);
-}
-
-static void sample_probe_default(void)
-{
-        /* uses the default method to get the firmware */
-        const struct firmware *fw_entry;
-        int retval;
-
-        printk(KERN_INFO "firmware_sample_driver: "
-                "a ghost device got inserted :)\n");
-
-        retval = request_firmware(&fw_entry, "sample_driver_fw", &ghost_device);
-        if (retval) {
-                printk(KERN_ERR
-                       "firmware_sample_driver: Firmware not available\n");
-                return;
-        }
-
-        sample_firmware_load(fw_entry->data, fw_entry->size);
-
-        release_firmware(fw_entry);
-
-        /* finish setting up the device */
-}
-
-static void sample_probe_specific(void)
-{
-        int retval;
-        /* Uses some specific hotplug support to get the firmware from
-         * userspace  directly into the hardware, or via some sysfs file */
-
-        /* NOTE: This currently doesn't work */
-
-        printk(KERN_INFO "firmware_sample_driver: "
-                "a ghost device got inserted :)\n");
-
-        retval = request_firmware(NULL, "sample_driver_fw", &ghost_device);
-        if (retval) {
-                printk(KERN_ERR
-                       "firmware_sample_driver: Firmware load failed\n");
-                return;
-        }
-
-        /* request_firmware blocks until userspace finished, so at
-         * this point the firmware should be already in the device */
-
-        /* finish setting up the device */
-}
-
-static void sample_probe_async_cont(const struct firmware *fw, void *context)
-{
-        if (!fw) {
-                printk(KERN_ERR
-                       "firmware_sample_driver: firmware load failed\n");
-                return;
-        }
-
-        printk(KERN_INFO "firmware_sample_driver: device pointer \"%s\"\n",
-               (char *)context);
-        sample_firmware_load(fw->data, fw->size);
-}
-
-static void sample_probe_async(void)
-{
-        /* Let's say that I can't sleep */
-        int error;
-        error = request_firmware_nowait(THIS_MODULE, FW_ACTION_NOHOTPLUG,
-                                        "sample_driver_fw", &ghost_device,
-                                        "my device pointer",
-                                        sample_probe_async_cont);
-        if (error)
-                printk(KERN_ERR "firmware_sample_driver:"
-                       " request_firmware_nowait failed\n");
-}
-
-static int __init sample_init(void)
-{
-        device_initialize(&ghost_device);
-        /* since there is no real hardware insertion I just call the
-         * sample probe functions here */
-        sample_probe_specific();
-        sample_probe_default();
-        sample_probe_async();
-        return 0;
-}
-
-static void __exit sample_exit(void)
-{
-}
-
-module_init(sample_init);
-module_exit(sample_exit);
-
-MODULE_LICENSE("GPL");
diff --git a/samples/firmware_class/firmware_sample_firmware_class.c b/samples/firmware_class/firmware_sample_firmware_class.c
deleted file mode 100644
index e6cf7a43a29..00000000000
--- a/samples/firmware_class/firmware_sample_firmware_class.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * firmware_sample_firmware_class.c -
- *
- * Copyright (c) 2003 Manuel Estrada Sainz
- *
- * NOTE: This is just a probe of concept, if you think that your driver would
- * be well served by this mechanism please contact me first.
- *
- * DON'T USE THIS CODE AS IS
- *
- */
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/timer.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/firmware.h>
-
-
-MODULE_AUTHOR("Manuel Estrada Sainz");
-MODULE_DESCRIPTION("Hackish sample for using firmware class directly");
-MODULE_LICENSE("GPL");
-
-static inline struct class_device *to_class_dev(struct kobject *obj)
-{
-        return container_of(obj, struct class_device, kobj);
-}
-
-static inline
-struct class_device_attribute *to_class_dev_attr(struct attribute *_attr)
-{
-        return container_of(_attr, struct class_device_attribute, attr);
-}
-
-struct firmware_priv {
-        char fw_id[FIRMWARE_NAME_MAX];
-        s32 loading:2;
-        u32 abort:1;
-};
-
-static ssize_t firmware_loading_show(struct class_device *class_dev, char *buf)
-{
-        struct firmware_priv *fw_priv = class_get_devdata(class_dev);
-        return sprintf(buf, "%d\n", fw_priv->loading);
-}
-
-static ssize_t firmware_loading_store(struct class_device *class_dev,
-                                      const char *buf, size_t count)
-{
-        struct firmware_priv *fw_priv = class_get_devdata(class_dev);
-        int prev_loading = fw_priv->loading;
-
-        fw_priv->loading = simple_strtol(buf, NULL, 10);
-
-        switch (fw_priv->loading) {
-        case -1:
-                /* abort load an panic */
-                break;
-        case 1:
-                /* setup load */
-                break;
-        case 0:
-                if (prev_loading == 1) {
-                        /* finish load and get the device back to working
-                         * state */
-                }
-                break;
-        }
-
-        return count;
-}
-static CLASS_DEVICE_ATTR(loading, 0644,
-                         firmware_loading_show, firmware_loading_store);
-
-static ssize_t firmware_data_read(struct kobject *kobj,
-                                  struct bin_attribute *bin_attr,
-                                  char *buffer, loff_t offset, size_t count)
-{
-        struct class_device *class_dev = to_class_dev(kobj);
-        struct firmware_priv *fw_priv = class_get_devdata(class_dev);
-
-        /* read from the devices firmware memory */
-
-        return count;
-}
-static ssize_t firmware_data_write(struct kobject *kobj,
-                                   struct bin_attribute *bin_attr,
-                                   char *buffer, loff_t offset, size_t count)
-{
-        struct class_device *class_dev = to_class_dev(kobj);
-        struct firmware_priv *fw_priv = class_get_devdata(class_dev);
-
-        /* write to the devices firmware memory */
-
-        return count;
-}
-static struct bin_attribute firmware_attr_data = {
-        .attr = {.name = "data", .mode = 0644},
-        .size = 0,
-        .read = firmware_data_read,
-        .write = firmware_data_write,
-};
-static int fw_setup_class_device(struct class_device *class_dev,
-                                 const char *fw_name,
-                                 struct device *device)
-{
-        int retval;
-        struct firmware_priv *fw_priv;
-
-        fw_priv = kzalloc(sizeof(struct firmware_priv), GFP_KERNEL);
-        if (!fw_priv) {
-                retval = -ENOMEM;
-                goto out;
-        }
-
-        memset(class_dev, 0, sizeof(*class_dev));
-
-        strncpy(fw_priv->fw_id, fw_name, FIRMWARE_NAME_MAX);
-        fw_priv->fw_id[FIRMWARE_NAME_MAX-1] = '\0';
-
-        strncpy(class_dev->class_id, device->bus_id, BUS_ID_SIZE);
-        class_dev->class_id[BUS_ID_SIZE-1] = '\0';
-        class_dev->dev = device;
-
-        class_dev->class = &firmware_class;
-        class_set_devdata(class_dev, fw_priv);
-        retval = class_device_register(class_dev);
-        if (retval) {
-                printk(KERN_ERR "%s: class_device_register failed\n",
-                       __func__);
-                goto error_free_fw_priv;
-        }
-
-        retval = sysfs_create_bin_file(&class_dev->kobj, &firmware_attr_data);
-        if (retval) {
-                printk(KERN_ERR "%s: sysfs_create_bin_file failed\n",
-                       __func__);
-                goto error_unreg_class_dev;
-        }
-
-        retval = class_device_create_file(class_dev,
-                                          &class_device_attr_loading);
-        if (retval) {
-                printk(KERN_ERR "%s: class_device_create_file failed\n",
-                       __func__);
-                goto error_remove_data;
-        }
-
-        goto out;
-
-error_remove_data:
-        sysfs_remove_bin_file(&class_dev->kobj, &firmware_attr_data);
-error_unreg_class_dev:
-        class_device_unregister(class_dev);
-error_free_fw_priv:
-        kfree(fw_priv);
-out:
-        return retval;
-}
-static void fw_remove_class_device(struct class_device *class_dev)
-{
-        struct firmware_priv *fw_priv = class_get_devdata(class_dev);
-
-        class_device_remove_file(class_dev, &class_device_attr_loading);
-        sysfs_remove_bin_file(&class_dev->kobj, &firmware_attr_data);
-        class_device_unregister(class_dev);
-}
-
-static struct class_device *class_dev;
-
-static struct device my_device = {
-        .bus_id    = "my_dev0",
-};
-
-static int __init firmware_sample_init(void)
-{
-        int error;
-
-        device_initialize(&my_device);
-        class_dev = kmalloc(sizeof(struct class_device), GFP_KERNEL);
-        if (!class_dev)
-                return -ENOMEM;
-
-        error = fw_setup_class_device(class_dev, "my_firmware_image",
-                                      &my_device);
-        if (error) {
-                kfree(class_dev);
-                return error;
-        }
-        return 0;
-
-}
-static void __exit firmware_sample_exit(void)
-{
-        struct firmware_priv *fw_priv = class_get_devdata(class_dev);
-        fw_remove_class_device(class_dev);
-        kfree(fw_priv);
-        kfree(class_dev);
-}
-
-module_init(firmware_sample_init);
-module_exit(firmware_sample_exit);
diff --git a/scripts/tracing/draw_functrace.py b/scripts/tracing/draw_functrace.py
index 902f9a99262..db40fa04cd5 100644
--- a/scripts/tracing/draw_functrace.py
+++ b/scripts/tracing/draw_functrace.py
@@ -12,10 +12,9 @@ calls. Only the functions's names and the the call time are provided.
 
 Usage:
         Be sure that you have CONFIG_FUNCTION_TRACER
-        # mkdir /debugfs
-        # mount -t debug debug /debug
-        # echo function > /debug/tracing/current_tracer
-        $ cat /debug/tracing/trace_pipe > ~/raw_trace_func
+        # mount -t debugfs nodev /sys/kernel/debug
+        # echo function > /sys/kernel/debug/tracing/current_tracer
+        $ cat /sys/kernel/debug/tracing/trace_pipe > ~/raw_trace_func
         Wait some times but not too much, the script is a bit slow.
         Break the pipe (Ctrl + Z)
         $ scripts/draw_functrace.py < raw_trace_func > draw_functrace
diff --git a/sound/sound_core.c b/sound/sound_core.c
index 2b302bbffe7..12522e6913d 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -27,6 +27,11 @@ MODULE_DESCRIPTION("Core sound module");
 MODULE_AUTHOR("Alan Cox");
 MODULE_LICENSE("GPL");
 
+static char *sound_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "snd/%s", dev_name(dev));
+}
+
 static int __init init_soundcore(void)
 {
         int rc;
@@ -41,6 +46,8 @@ static int __init init_soundcore(void)
                 return PTR_ERR(sound_class);
         }
 
+        sound_class->nodename = sound_nodename;
+
         return 0;
 }