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<title>linux-toradex.git/drivers/infiniband/core/sysfs.c, branch v3.2.56</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux</title>
<updated>2011-11-07T03:44:47+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2011-11-07T03:44:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=32aaeffbd4a7457bf2f7448b33b5946ff2a960eb'/>
<id>32aaeffbd4a7457bf2f7448b33b5946ff2a960eb</id>
<content type='text'>
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include &lt;linux/module.h&gt;
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include &lt;linux/module.h&gt;
  net: sch_generic remove redundant use of &lt;linux/module.h&gt;
  net: inet_timewait_sock doesnt need &lt;linux/module.h&gt;
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include &lt;linux/module.h&gt;
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include &lt;linux/module.h&gt;
  net: sch_generic remove redundant use of &lt;linux/module.h&gt;
  net: inet_timewait_sock doesnt need &lt;linux/module.h&gt;
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
</pre>
</div>
</content>
</entry>
<entry>
<title>infiniband: Fix up users implicitly relying on getting stat.h</title>
<updated>2011-10-31T23:31:34+00:00</updated>
<author>
<name>Paul Gortmaker</name>
<email>paul.gortmaker@windriver.com</email>
</author>
<published>2011-05-27T17:27:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=fc87af74af7f856bb8e7585308fb1fdaaa69ec73'/>
<id>fc87af74af7f856bb8e7585308fb1fdaaa69ec73</id>
<content type='text'>
They get it via module.h (via device.h) but we want to clean that up.
When we do, we'll get things like:

  CC [M]  drivers/infiniband/core/sysfs.o
  sysfs.c:361: error: 'S_IRUGO' undeclared here (not in a function)
  sysfs.c:654: error: 'S_IWUSR' undeclared here (not in a function)

so add in the stat header it is using explicitly in advance.

Signed-off-by: Paul Gortmaker &lt;paul.gortmaker@windriver.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
They get it via module.h (via device.h) but we want to clean that up.
When we do, we'll get things like:

  CC [M]  drivers/infiniband/core/sysfs.o
  sysfs.c:361: error: 'S_IRUGO' undeclared here (not in a function)
  sysfs.c:654: error: 'S_IWUSR' undeclared here (not in a function)

so add in the stat header it is using explicitly in advance.

Signed-off-by: Paul Gortmaker &lt;paul.gortmaker@windriver.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>IB: Add new InfiniBand link speeds</title>
<updated>2011-10-11T18:53:47+00:00</updated>
<author>
<name>Marcel Apfelbaum</name>
<email>marcela@dev.mellanox.co.il</email>
</author>
<published>2011-10-05T11:21:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=71eeba161d7611238ecb6f525a82325aa35339f0'/>
<id>71eeba161d7611238ecb6f525a82325aa35339f0</id>
<content type='text'>
Introduce support for the following extended speeds:

FDR-10: a Mellanox proprietary link speed which is 10.3125 Gbps with
        64b/66b encoding rather than 8b/10b encoding.
FDR:    IBA extended speed 14.0625 Gbps.
EDR:    IBA extended speed 25.78125 Gbps.

Signed-off-by: Marcel Apfelbaum &lt;marcela@dev.mellanox.co.il&gt;
Reviewed-by: Hal Rosenstock &lt;hal@mellanox.com&gt;
Reviewed-by: Sean Hefty &lt;sean.hefty@intel.com&gt;
Signed-off-by: Roland Dreier &lt;roland@purestorage.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Introduce support for the following extended speeds:

FDR-10: a Mellanox proprietary link speed which is 10.3125 Gbps with
        64b/66b encoding rather than 8b/10b encoding.
FDR:    IBA extended speed 14.0625 Gbps.
EDR:    IBA extended speed 25.78125 Gbps.

Signed-off-by: Marcel Apfelbaum &lt;marcela@dev.mellanox.co.il&gt;
Reviewed-by: Hal Rosenstock &lt;hal@mellanox.com&gt;
Reviewed-by: Sean Hefty &lt;sean.hefty@intel.com&gt;
Signed-off-by: Roland Dreier &lt;roland@purestorage.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>IB/core: Add link layer type information to sysfs</title>
<updated>2010-10-25T17:20:39+00:00</updated>
<author>
<name>Eli Cohen</name>
<email>eli@mellanox.co.il</email>
</author>
<published>2010-10-22T12:32:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=8ad330a002ffbc422f32a77398666832f0df8a3d'/>
<id>8ad330a002ffbc422f32a77398666832f0df8a3d</id>
<content type='text'>
Since an IB transport port may use either IB or Ethernet as its link layer,
add the file /sys/class/infiniband/&lt;device&gt;/ports/&lt;port_num&gt;/link_layer to
show the link layer for the port.

Signed-off-by: Eli Cohen &lt;eli@mellanox.co.il&gt;
Signed-off-by: Roland Dreier &lt;rolandd@cisco.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since an IB transport port may use either IB or Ethernet as its link layer,
add the file /sys/class/infiniband/&lt;device&gt;/ports/&lt;port_num&gt;/link_layer to
show the link layer for the port.

Signed-off-by: Eli Cohen &lt;eli@mellanox.co.il&gt;
Signed-off-by: Roland Dreier &lt;rolandd@cisco.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>IB/core: Allow device-specific per-port sysfs files</title>
<updated>2010-05-21T17:34:44+00:00</updated>
<author>
<name>Ralph Campbell</name>
<email>ralph.campbell@qlogic.com</email>
</author>
<published>2010-05-07T00:03:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9a6edb60ec10d86b1025a0cdad68fd89f1ddaf02'/>
<id>9a6edb60ec10d86b1025a0cdad68fd89f1ddaf02</id>
<content type='text'>
Add a new parameter to ib_register_device() so that low-level device
drivers can pass in a pointer to a callback function that will be
called for each port that is registered in sysfs.  This allows
low-level device drivers to create files in

    /sys/class/infiniband/&lt;hca&gt;/ports/&lt;N&gt;/

without having to poke through the internals of the RDMA sysfs handling.

There is no need for an unregister function since the kobject
reference will go to zero when ib_unregister_device() is called.

Signed-off-by: Ralph Campbell &lt;ralph.campbell@qlogic.com&gt;
Signed-off-by: Roland Dreier &lt;rolandd@cisco.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add a new parameter to ib_register_device() so that low-level device
drivers can pass in a pointer to a callback function that will be
called for each port that is registered in sysfs.  This allows
low-level device drivers to create files in

    /sys/class/infiniband/&lt;hca&gt;/ports/&lt;N&gt;/

without having to poke through the internals of the RDMA sysfs handling.

There is no need for an unregister function since the kobject
reference will go to zero when ib_unregister_device() is called.

Signed-off-by: Ralph Campbell &lt;ralph.campbell@qlogic.com&gt;
Signed-off-by: Roland Dreier &lt;rolandd@cisco.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>sysfs: fix sysfs lockdep warning in infiniband code</title>
<updated>2010-03-19T14:12:13+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@suse.de</email>
</author>
<published>2010-03-15T21:01:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=21e3bde964e873bb5d3b1dfef68294b1437fe678'/>
<id>21e3bde964e873bb5d3b1dfef68294b1437fe678</id>
<content type='text'>
This fixes a sysfs lockdep warning in the infiniband code.

Cc: Yinghai Lu &lt;yinghai@kernel.org&gt;
Cc: Eric Biederman &lt;ebiederm@xmission.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This fixes a sysfs lockdep warning in the infiniband code.

Cc: Yinghai Lu &lt;yinghai@kernel.org&gt;
Cc: Eric Biederman &lt;ebiederm@xmission.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>Driver core: Constify struct sysfs_ops in struct kobj_type</title>
<updated>2010-03-08T01:04:49+00:00</updated>
<author>
<name>Emese Revfy</name>
<email>re.emese@gmail.com</email>
</author>
<published>2010-01-19T01:58:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=52cf25d0ab7f78eeecc59ac652ed5090f69b619e'/>
<id>52cf25d0ab7f78eeecc59ac652ed5090f69b619e</id>
<content type='text'>
Constify struct sysfs_ops.

This is part of the ops structure constification
effort started by Arjan van de Ven et al.

Benefits of this constification:

 * prevents modification of data that is shared
   (referenced) by many other structure instances
   at runtime

 * detects/prevents accidental (but not intentional)
   modification attempts on archs that enforce
   read-only kernel data at runtime

 * potentially better optimized code as the compiler
   can assume that the const data cannot be changed

 * the compiler/linker move const data into .rodata
   and therefore exclude them from false sharing

Signed-off-by: Emese Revfy &lt;re.emese@gmail.com&gt;
Acked-by: David Teigland &lt;teigland@redhat.com&gt;
Acked-by: Matt Domsch &lt;Matt_Domsch@dell.com&gt;
Acked-by: Maciej Sosnowski &lt;maciej.sosnowski@intel.com&gt;
Acked-by: Hans J. Koch &lt;hjk@linutronix.de&gt;
Acked-by: Pekka Enberg &lt;penberg@cs.helsinki.fi&gt;
Acked-by: Jens Axboe &lt;jens.axboe@oracle.com&gt;
Acked-by: Stephen Hemminger &lt;shemminger@vyatta.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Constify struct sysfs_ops.

This is part of the ops structure constification
effort started by Arjan van de Ven et al.

Benefits of this constification:

 * prevents modification of data that is shared
   (referenced) by many other structure instances
   at runtime

 * detects/prevents accidental (but not intentional)
   modification attempts on archs that enforce
   read-only kernel data at runtime

 * potentially better optimized code as the compiler
   can assume that the const data cannot be changed

 * the compiler/linker move const data into .rodata
   and therefore exclude them from false sharing

Signed-off-by: Emese Revfy &lt;re.emese@gmail.com&gt;
Acked-by: David Teigland &lt;teigland@redhat.com&gt;
Acked-by: Matt Domsch &lt;Matt_Domsch@dell.com&gt;
Acked-by: Maciej Sosnowski &lt;maciej.sosnowski@intel.com&gt;
Acked-by: Hans J. Koch &lt;hjk@linutronix.de&gt;
Acked-by: Pekka Enberg &lt;penberg@cs.helsinki.fi&gt;
Acked-by: Jens Axboe &lt;jens.axboe@oracle.com&gt;
Acked-by: Stephen Hemminger &lt;shemminger@vyatta.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>infiniband: remove driver_data direct access of struct device</title>
<updated>2009-06-16T04:30:26+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@suse.de</email>
</author>
<published>2009-04-30T21:43:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=3f7c58a05fe4aa71983ea27959b7ad840950537e'/>
<id>3f7c58a05fe4aa71983ea27959b7ad840950537e</id>
<content type='text'>
In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.


Cc: general@lists.openfabrics.org
Cc: Roland Dreier &lt;rolandd@cisco.com&gt;
Cc: Hal Rosenstock &lt;hal.rosenstock@gmail.com&gt;
Cc: Sean Hefty &lt;sean.hefty@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.


Cc: general@lists.openfabrics.org
Cc: Roland Dreier &lt;rolandd@cisco.com&gt;
Cc: Hal Rosenstock &lt;hal.rosenstock@gmail.com&gt;
Cc: Sean Hefty &lt;sean.hefty@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>IB: Remove useless ibdev_is_alive() tests from sysfs code</title>
<updated>2009-03-04T23:22:39+00:00</updated>
<author>
<name>Roland Dreier</name>
<email>rolandd@cisco.com</email>
</author>
<published>2009-03-04T23:22:39+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6432f366842c78d17b2df974c68f39cb5794f2c2'/>
<id>6432f366842c78d17b2df974c68f39cb5794f2c2</id>
<content type='text'>
Some attribute show functions test ibdev_is_alive() to make sure that
it's OK to access device state.  However, the sysfs attributes will
not be registered until the device is fully initialized, and they'll
be unregistered before anything is torn down, so ibdev_is_alive()
doesn't do anything useful.  Remove it.

Signed-off-by: Roland Dreier &lt;rolandd@cisco.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Some attribute show functions test ibdev_is_alive() to make sure that
it's OK to access device state.  However, the sysfs attributes will
not be registered until the device is fully initialized, and they'll
be unregistered before anything is torn down, so ibdev_is_alive()
doesn't do anything useful.  Remove it.

Signed-off-by: Roland Dreier &lt;rolandd@cisco.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>IB: Remove sysfs files before unregistering device</title>
<updated>2009-02-25T21:27:46+00:00</updated>
<author>
<name>Roland Dreier</name>
<email>rolandd@cisco.com</email>
</author>
<published>2009-02-25T21:27:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9206dff15705267c19f8fed391c4fb95975540a3'/>
<id>9206dff15705267c19f8fed391c4fb95975540a3</id>
<content type='text'>
Move the ib_device_unregister_sysfs() call from ib_dealloc_device() to
ib_unregister_device().  The old code allows device unregister to
proceed even if some sysfs files are open, which leaves a window where
userspace can open a file before a device is removed but then end up
reading the file after the device is removed, which leads to various
kernel crashes either because the device data structure is freed or
because the low-level driver code is gone after module removal.

By not returning from ib_unregister_device() until after all sysfs
entries are removed, we make sure that data structures and/or module
code is not freed until after all sysfs access is done.

Reported-by: Jack Morgenstein &lt;jackm@dev.mellanox.co.il&gt;
Signed-off-by: Roland Dreier &lt;rolandd@cisco.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Move the ib_device_unregister_sysfs() call from ib_dealloc_device() to
ib_unregister_device().  The old code allows device unregister to
proceed even if some sysfs files are open, which leaves a window where
userspace can open a file before a device is removed but then end up
reading the file after the device is removed, which leads to various
kernel crashes either because the device data structure is freed or
because the low-level driver code is gone after module removal.

By not returning from ib_unregister_device() until after all sysfs
entries are removed, we make sure that data structures and/or module
code is not freed until after all sysfs access is done.

Reported-by: Jack Morgenstein &lt;jackm@dev.mellanox.co.il&gt;
Signed-off-by: Roland Dreier &lt;rolandd@cisco.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
