Replace kmalloc()+memset(,0,) with kzalloc(), for a net savings of 35
source lines and about 500 bytes of text.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

The previous patch adding the ability to nest struct class_device
changed the paramaters to the call class_device_create().  This patch
fixes up all in-kernel users of the function.
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add idr_destroy() calls to the module_exit() functions of the four IB
driver modules that use idrs, so we don't leak idr_layer_cache objects
when these modules are unloaded.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

Make ctx_id_mutex and ctx_id_table static to quiet sparse warnings.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

Bind communication identifiers to a device to support device removal.
Export per HCA CM devices to userspace.
Signed-off-by: NSean Hefty <sean.hefty@intel.com>

Eliminate ucm.h.  Replace ucm_dbg with direct call to printk KERN_ERR.
Signed-off-by: NSean Hefty <sean.hefty@intel.com>

- Add user specified context to all uCM events.  Users will not retrieve
  any events associated with the context after destroying the corresponding
  cm_id.
- Provide the ib_cm_init_qp_attr() call to userspace clients of the CM.
  This call may be used to set QP attributes properly before modifying the QP.
- Fixes some error handling synchonization and cleanup issues.
- Performs some minor code cleanup.
Signed-off-by: NSean Hefty <sean.hefty@intel.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

Fix deadlock condition resulting from trying to destroy a cm_id
from the context of a CM thread.  The synchronization around the
ucm context structure is simplified as a result, and some simple
code cleanup is included.
Signed-off-by: NSean Hefty <sean.hefty@intel.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

Only print debug messages when debug_level is set.
Eliminate NULL checks prior to calling kfree.
Signed-off-by: NHal Rosenstock <halr@voltaire.com>
Signed-off-by: NLibor Michalek <libor@topspin.com>

Include the patch openib-general changing class_simple to class.
Signed-off-by: NTom Duffy <tduffy@sun.com>
Cc: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Add kernel portion of user CM implementation
Signed-off-by: NLibor Michalek <libor@topspin.com>
Signed-off-by: NHal Rosenstock <halr@voltaire.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>