linux-toradex.git/drivers/base/devres.c, branch v3.15-rc6

devres: introduce API "devm_kstrdup"

2014-02-11T16:34:32+00:00

This patch introduces "devm_kstrdup" API so that the
device's driver can allocate memory and copy string.

Signed-off-by: Manish Badarkhe 
Signed-off-by: Mark Brown

devres: restore zeroing behavior of devres_alloc()

2013-10-25T04:46:27+00:00

commit 64c862a8 (devres: add kernel standard devm_k.alloc functions) changed
the default behavior of alloc_dr() to no longer zero the allocated memory.  However,
only the devm.k.alloc() function were modified to pass in __GFP_ZERO which leaves
any users of devres_alloc() or __devres_alloc() with potentially wrong assumptions
about memory being zero'd upon allocation.

To fix, add __GFP_ZERO to devres_alloc() calls to preserve previous
behavior of zero'ing memory upon allocation.

Signed-off-by: Kevin Hilman 
Cc: Tejun Heo 
Signed-off-by: Joe Perches 
Signed-off-by: Greg Kroah-Hartman

devres: add kernel standard devm_k.alloc functions

2013-10-17T01:29:07+00:00

Currently, devm_ managed memory only supports kzalloc.

Convert the devm_kzalloc implementation to devm_kmalloc and remove the
complete memset to 0 but still set the initial struct devres header and
whatever padding before data to 0.

Add the other normal alloc variants as static inlines with __GFP_ZERO
added to the gfp flag where appropriate:

	devm_kzalloc
	devm_kcalloc
	devm_kmalloc_array

Add gfp.h to device.h for the newly added static inlines.

akpm: the current API forces us to replace kmalloc() with kzalloc() when
performing devm_ conversions.  This adds a relatively minor overhead.
More significantly, it will defeat kmemcheck used-uninitialized checking,
and for a particular driver, losing used-uninitialised checking for their
core controlling data structures will significantly degrade kmemcheck
usefulness.

Signed-off-by: Joe Perches 
Cc: Tejun Heo 
Cc: Sangjung Woo 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'v3.9-rc3' into next

2013-03-18T02:40:50+00:00

Merge with mainline to bring in module_platform_driver_probe() and
devm_ioremap_resource().

devres: allow adding custom actions to the stack

2013-02-26T07:02:42+00:00

Sometimes drivers need to execute one-off actions in their error handling
or device teardown paths. An example would be toggling a GPIO line to
reset the controlled device into predefined state.

To allow performing such actions when using managed resources let's allow
adding them to stack/group of devres resources.

Acked-by: Tejun Heo 
Acked-by: Greg Kroah-Hartman 
Signed-off-by: Dmitry Torokhov

drivers: base: Convert dev_printk(KERN_ to dev_(

2012-10-31T00:38:43+00:00

dev_ calls take less code than dev_printk(KERN_
and reducing object size is good.

Signed-off-by: Joe Perches 
Signed-off-by: Greg Kroah-Hartman

driver core: devres: introduce devres_for_each_res

2012-08-16T20:30:29+00:00

This patch introduces one devres API of devres_for_each_res
so that the device's driver can iterate each resource it has
interest in.

The firmware loader will use the API to get each firmware name
from the device instance.

Signed-off-by: Ming Lei 
Cc: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

devres: Add devres_release()

2012-05-04T23:33:16+00:00

APIs using devres frequently want to implement a "remove and free the
resource" operation so it seems sensible that they should be able to
just have devres do the freeing for them since that's a big part of what
devres is all about.

Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

devres: Clarify documentation for devres_destroy()

2012-05-04T23:33:16+00:00

It's not massively obvious (at least to me) that removing and freeing a
resource does not involve calling the release function for the resource
but rather only removes the management of it. Make the documentation more
explicit.

Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

devres: Fix a typo in devm_kfree comment

2011-12-20T23:31:47+00:00

Signed-off-by: Axel Lin 
Signed-off-by: Jiri Kosina