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Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (64 commits)
  debugfs: use specified mode to possibly mark files read/write only
  debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.
  xen: remove driver_data direct access of struct device from more drivers
  usb: gadget: at91_udc: remove driver_data direct access of struct device
  uml: remove driver_data direct access of struct device
  block/ps3: remove driver_data direct access of struct device
  s390: remove driver_data direct access of struct device
  parport: remove driver_data direct access of struct device
  parisc: remove driver_data direct access of struct device
  of_serial: remove driver_data direct access of struct device
  mips: remove driver_data direct access of struct device
  ipmi: remove driver_data direct access of struct device
  infiniband: ehca: remove driver_data direct access of struct device
  ibmvscsi: gadget: at91_udc: remove driver_data direct access of struct device
  hvcs: remove driver_data direct access of struct device
  xen block: remove driver_data direct access of struct device
  thermal: remove driver_data direct access of struct device
  scsi: remove driver_data direct access of struct device
  pcmcia: remove driver_data direct access of struct device
  PCIE: remove driver_data direct access of struct device
  ...

Manually fix up trivial conflicts due to different direct driver_data
direct access fixups in drivers/block/{ps3disk.c,ps3vram.c}
This commit is contained in:
Linus Torvalds 2009-06-16 12:57:37 -07:00
commit 6fd03301d7
121 changed files with 875 additions and 812 deletions
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2
Documentation/DocBook/debugobjects.tmpl
View file

@ -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

2
Documentation/cdrom/packet-writing.txt
View file

@ -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:

32
Documentation/driver-model/device.txt
View file

@ -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");

70
Documentation/fault-injection/fault-injection.txt
View file

@ -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

3
Documentation/firmware_class/README
View file

@ -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:

6
Documentation/kprobes.txt
View file

@ -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

233
Documentation/trace/ftrace.txt
View file

@ -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:
# mkdir /debug
# mount -t debugfs nodev /debug
debugfs /sys/kernel/debug debugfs defaults 0 0
( Note: it is more common to mount at /sys/kernel/debug, but for
simplicity this document will use /debug)
Or you can mount it at run time with:
mount -t debugfs nodev /sys/kernel/debug
For quicker access to that directory you may want to make a soft link to
it:
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
-----------

26
Documentation/trace/mmiotrace.txt
View file

@ -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

2
arch/mips/sni/eisa.c
View file

@ -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

4
arch/um/drivers/net_kern.c
View file

@ -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);

4
arch/um/drivers/ubd_kern.c
View file

@ -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;
}

6
arch/x86/kernel/cpuid.c
View file

@ -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)

1
arch/x86/kernel/microcode_core.c
View file

@ -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,
};

6
arch/x86/kernel/msr.c
View file

@ -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)

6
block/bsg.c
View file

@ -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)

10
block/genhd.c
View file

@ -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

57
drivers/base/core.c
View file

@ -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;
}
@ -1127,6 +1136,47 @@ static struct device *next_device(struct klist_iter *i)
return dev;
}
/**
* 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.
@ -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();
}

6
drivers/base/dd.c
View file

@ -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);
}
}

27
drivers/base/firmware_class.c
View file

@ -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(

7
drivers/base/platform.c
View file

@ -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];

8
drivers/base/sys.c
View file

@ -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);
}

7
drivers/block/aoe/aoechr.c
View file

@ -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,

9
drivers/block/pktcdvd.c
View file

@ -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
};

14
drivers/block/xen-blkfront.c
View file

@ -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;
}

6
drivers/char/hvcs.c
View file

@ -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;

1
drivers/char/hw_random/core.c
View file

@ -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,
};

4
drivers/char/ipmi/ipmi_si_intf.c
View file

@ -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;
}

15
drivers/char/misc.c
View file

@ -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:

6
drivers/char/raw.c
View file

@ -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;

2
drivers/eisa/pci_eisa.c
View file

@ -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");

2
drivers/eisa/virtual_root.c
View file

@ -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

6
drivers/firewire/fw-sbp2.c
View file

@ -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));

12
drivers/gpu/drm/drm_debugfs.c
View file

@ -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;
}
}

2
drivers/gpu/drm/drm_drv.c
View file

@ -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;
}

2
drivers/gpu/drm/drm_stub.c
View file

@ -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

7
drivers/gpu/drm/drm_sysfs.c
View file

@ -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:

7
drivers/hid/usbhid/hiddev.c
View file

@ -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,

6
drivers/ide/ide-pm.c
View file

@ -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;

4
drivers/ide/ide-probe.c
View file

@ -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);

2
drivers/ide/ide_platform.c
View file

@ -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);

16
drivers/ieee1394/eth1394.c
View file

@ -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;

8
drivers/ieee1394/sbp2.c
View file

@ -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:

2
drivers/infiniband/core/sysfs.c
View file

@ -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);

8
drivers/infiniband/hw/ehca/ehca_main.c
View file

@ -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;

6
drivers/input/input.c
View file

@ -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);

2
drivers/input/touchscreen/wm97xx-core.c
View file

@ -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 */

8
drivers/input/xen-kbdfront.c
View file

@ -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) {

1
drivers/md/dm-ioctl.c
View file

@ -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
};

2
drivers/media/common/tuners/tuner-xc2028.c
View file

@ -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");

10
drivers/media/dvb/dvb-core/dvbdev.c
View file

@ -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:

2
drivers/media/dvb/dvb-usb/dvb-usb.h
View file

@ -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;

4
drivers/media/dvb/firewire/firedtv-1394.c
View file

@ -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,

2
drivers/media/dvb/firewire/firedtv-dvb.c
View file

@ -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;

6
drivers/media/video/dabusb.c
View file

@ -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,
};

22
drivers/media/video/pvrusb2/pvrusb2-sysfs.c
View file

@ -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);

4
drivers/mfd/htc-pasic3.c
View file

@ -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);

2
drivers/mfd/pcf50633-core.c
View file

@ -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);

2
drivers/mfd/wm8400-core.c
View file

@ -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);

4
drivers/net/Kconfig
View file

@ -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.

1
drivers/net/tun.c
View file

@ -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,
};

2
drivers/net/wimax/i2400m/i2400m.h
View file

@ -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 */

5
drivers/net/wireless/ath/ath5k/Kconfig
View file

@ -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:

12
drivers/net/wireless/libertas/README
View file

@ -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

8
drivers/net/wireless/libertas/if_spi.c
View file

@ -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;
}

3
drivers/net/wireless/libertas/if_spi.h
View file

@ -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;

8
drivers/net/wireless/libertas/if_usb.c
View file

@ -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;

10
drivers/net/xen-netfront.c
View file

@ -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);

2
drivers/parisc/eisa.c
View file

@ -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;

6
drivers/parisc/sba_iommu.c
View file

@ -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 # */

4
drivers/parport/parport_gsc.c
View file

@ -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;

2
drivers/pci/pcie/portdrv_core.c
View file

@ -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));

20
drivers/pcmcia/ds.c
View file

@ -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;
}

16
drivers/s390/char/con3215.c
View file

@ -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;

16
drivers/s390/char/raw3270.c
View file

@ -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);

2
drivers/s390/char/tape_34xx.c
View file

@ -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
);
}

2
drivers/s390/char/tape_3590.c
View file

@ -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);
}

22
drivers/s390/char/tape_core.c
View file

@ -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;
}

12
drivers/s390/char/vmlogrdr.c
View file

@ -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]) {

16
drivers/s390/char/vmur.c
View file

@ -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);

52
drivers/s390/net/claw.c
View file

@ -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;

20
drivers/s390/net/lcs.c
View file

@ -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;

4
drivers/s390/net/lcs.h
View file

@ -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
*/

47
drivers/s390/net/netiucv.c
View file

@ -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:

2
drivers/scsi/aha1740.c
View file

@ -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);

6
drivers/scsi/ibmvscsi/ibmvscsi.c
View file

@ -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,

2
drivers/scsi/ibmvscsi/ibmvstgt.c
View file

@ -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;

2
drivers/scsi/libsrp.c
View file

@ -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;

3
drivers/scsi/lpfc/lpfc_debugfs.c
View file

@ -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

4
drivers/serial/of_serial.c
View file

@ -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:

4
drivers/thermal/thermal_sys.c
View file

@ -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;

9
drivers/usb/atm/ueagle-atm.c
View file

@ -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);

6
drivers/usb/class/usblp.c
View file

@ -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,
};

13
drivers/usb/core/file.c
View file

@ -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);

11
drivers/usb/core/usb.c
View file

@ -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,
};

6
drivers/usb/gadget/at91_udc.c
View file

@ -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);

6
drivers/usb/misc/iowarrior.c
View file

@ -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,
};

6
drivers/usb/misc/legousbtower.c
View file

@ -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,
};

8
drivers/video/xen-fbfront.c
View file

@ -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) {

65
fs/debugfs/file.c
View file

@ -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

11
fs/debugfs/inode.c
View file

@ -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
@ -416,6 +417,16 @@ 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.

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