linux-toradex.git/drivers/s390/cio/ccwgroup.c, branch v3.0.22

ccwgroup: move attributes to attribute group

2011-11-11T17:36:09+00:00

commit dbdf1afcaaabe83dea15a3cb9b9013e73ae3b1ad upstream.

Put sysfs attributes of ccwgroup devices in an attribute group to
ensure that these attributes are actually present when userspace
is notified via uevents.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky 
Signed-off-by: Greg Kroah-Hartman

[S390] ccwgroup_driver: remove duplicate members

2011-03-23T09:15:59+00:00

Remove the owner and name members of struct
ccwgroup_driver and convert all drivers to store
this data in the embedded struct device_driver.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

[S390] cio: fix ccwgroup unregistration race condition

2011-01-05T11:47:31+00:00

A race condition exists in the ccwgroup device unregistration code
which can cause a kernel panic due to a use-after-free bug. This
race condition might be triggered when all ccw devices associated with
a ccwgroup device are removed at the same time (e.g. because the
corresponding channel path becomes no longer available).

Fix this race condition by clearing the references from the associated
ccw devices to the ccw group device during unregistration of the
ccw group device.

Signed-off-by: Peter Oberparleiter 
Signed-off-by: Martin Schwidefsky

[S390] ccwgroup: add locking around drvdata access

2010-05-26T21:27:09+00:00

Several processes may concurrently try to create a group device
from the same ccw_device(s). Add locking arround the drvdata
access to prevent race conditions.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

const: constify remaining dev_pm_ops

2009-12-15T16:53:25+00:00

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[S390] pm: ccwgroup bus power management callbacks

2009-06-16T08:31:08+00:00

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

2009-03-26T23:04:22+00:00

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (81 commits)
  [S390] remove duplicated #includes
  [S390] cpumask: use mm_cpumask() wrapper
  [S390] cpumask: Use accessors code.
  [S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.
  [S390] cpumask: remove cpu_coregroup_map
  [S390] fix clock comparator save area usage
  [S390] Add hwcap flag for the etf3 enhancement facility
  [S390] Ensure that ipl panic notifier is called late.
  [S390] fix dfp elf hwcap/facility bit detection
  [S390] smp: perform initial cpu reset before starting a cpu
  [S390] smp: fix memory leak on __cpu_up
  [S390] ipl: Improve checking logic and remove switch defaults.
  [S390] s390dbf: Remove needless check for NULL pointer.
  [S390] s390dbf: Remove redundant initilizations.
  [S390] use kzfree()
  [S390] BUG to BUG_ON changes
  [S390] zfcpdump: Prevent zcore from beeing built as a kernel module.
  [S390] Use csum_partial in checksum.h
  [S390] cleanup lowcore.h
  [S390] eliminate ipl_device from lowcore
  ...

[S390] cio: ccw group fix unbind behaviour.

2009-03-26T14:24:16+00:00

For a ccw group device unbinding it from its driver should do the
same as a call to ungroup, since this virtual device can not exist
without a driver.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

[S390] cio: fix sanity checks in ccwgroup driver.

2009-03-26T14:24:15+00:00

Some sanity checks in the ccw group driver test the output of
container_of macros to be !NULL. Test the input parameters instead.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

[S390] cio: ccw group online store - report rcs to the caller.

2009-03-26T14:24:15+00:00

In case the ccw group driver refuses to set a device [on|off]line,
we should transmit the return code to the caller.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky