linux-toradex.git/drivers/base, branch v2.6.23.12

create /sys/.../power when CONFIG_PM is set

2007-12-14T17:51:02+00:00

patch dec13c15445fec29ca9087890895718450e80b95 in mainline.

The CONFIG_SUSPEND changes in 2.6.23 caused a regression under certain
configuration conditions (SUSPEND=n, USB_AUTOSUSPEND=y) where all USB
device attributes in sysfs (idVendor, idProduct, ...) silently disappeared,
causing udev breakage and more.

The cause of this is that the /sys/.../power subdirectory is now only
created when CONFIG_PM_SLEEP is set, however, it should be created whenever
CONFIG_PM is set to handle the above situation.  The following patch fixes
the regression.

Signed-off-by: Daniel Drake 
Acked-by: Rafael J. Wysocki 
Cc: Alan Stern 
Cc: Kay Sievers 
Cc: stable 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

Driver core: fix SYSF_DEPRECATED breakage for nested classdevs

2007-10-07T23:42:22+00:00

We should only reparent to a class former class devices that
form the base of class hierarchy. Nested devices should still
grow from their real parents.

Signed-off-by: Dmitry Torokhov 
Tested-by: Andrey Borzenkov 
Tested-by: Anssi Hannula 
Signed-off-by: Linus Torvalds

Add explicit zeroing to "envp" array in device 'show' method

2007-09-26T16:16:21+00:00

As Stephen Hemminger says, this is a "belt and suspenders" patch that
zeroes the envp array at allocation time, even though all the users
should NULL-terminate it anyway (and we've hopefully fixed everybody
that doesn't do that).

And we'll apparently clean the whole envp thing up for 2.6.24 anyway.

But let's just be robust, and do both this *and* make sure that all
users are doing the right thing.

Acked-by: Stephen Hemminger 
Acked-by: Greg Kroah-Hartman 
Signed-off-by: Linus Torvalds

Driver core: fix deprectated sysfs structure for nested class devices

2007-09-19T18:24:18+00:00

Nested class devices used to have 'device' symlink point to a real
(physical) device instead of a parent class device.  When converting
subsystems to struct device we need to keep doing what class devices did if
CONFIG_SYSFS_DEPRECATED is Y, otherwise parts of udev break.

Signed-off-by: Dmitry Torokhov 
Cc: Kay Sievers 
Acked-by: Greg KH 
Tested-by: Anssi Hannula 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

CPU online file permission

2007-07-31T22:39:39+00:00

Is there a reason why the "online" file in the subdirectories for the CPUs
in /sys/devices/system isn't world-readable?  I cannot imagine it to be
security relevant especially now that a getcpu() syscall can be used to
determine what CPUa thread runs on.

The file is useful to correctly implement the sysconf() function to return
the number of online CPUs.  In the presence of hotplug we currently cannot
provide this information.  The patch below should to it.

Signed-off-by: Ulrich Drepper 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

driver core: revert "device" link creation check

2007-07-30T21:25:12+00:00

driver core: revert "device" link creation check

Commit 2ee97caf0a6602f749ddbfdb1449e383e1212707 introduced an extra
check on when to create the "device" symlink. Unfortunately, this
breaks input, so let's revert to the old behaviour.

Signed-off-by: Cornelia Huck 
Acked-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

kernel-doc fixes for PCI and drivers/base/

2007-07-30T21:25:12+00:00

Fix undocumented function parameters in PCI and drivers/base.

Warning(linux-2.6.23-rc1//drivers/pci/pci.c:1526): No description found for parameter 'rq'
Warning(linux-2.6.23-rc1//drivers/base/firmware_class.c:245): No description found for parameter 'bin_attr'

Signed-off-by: Randy Dunlap 
Signed-off-by: Greg Kroah-Hartman

kobject: put kobject_actions in kobject.h

2007-07-30T21:25:12+00:00

This prevents the extern declaration in the driver core.

Cc: Kay Sievers 
Cc: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

Introduce CONFIG_SUSPEND for suspend-to-Ram and standby

2007-07-29T23:45:38+00:00

Introduce CONFIG_SUSPEND representing the ability to enter system sleep
states, such as the ACPI S3 state, and allow the user to choose SUSPEND
and HIBERNATION independently of each other.

Make HOTPLUG_CPU be selected automatically if SUSPEND or HIBERNATION has
been chosen and the kernel is intended for SMP systems.

Also, introduce CONFIG_PM_SLEEP which is automatically selected if
CONFIG_SUSPEND or CONFIG_HIBERNATION is set and use it to select the
code needed for both suspend and hibernation.

The top-level power management headers and the ACPI code related to
suspend and hibernation are modified to use the new definitions (the
changes in drivers/acpi/sleep/main.c are, mostly, moving code to reduce
the number of ifdefs).

There are many other files in which CONFIG_PM can be replaced with
CONFIG_PM_SLEEP or even with CONFIG_SUSPEND, but they can be updated in
the future.

Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Linus Torvalds

Fix ThinkPad T42 poweroff failure introduced by by "PM: Introduce pm_power_off_prepare"

2007-07-26T19:13:06+00:00

Commit bd804eba1c8597cbb7cd5a5f9fe886aae16a079a ("PM: Introduce
pm_power_off_prepare") caused problems in the poweroff path, as reported by
YOSHIFUJI Hideaki / 吉藤英明.

Generally, sysdev_shutdown() should be called after the ACPI preparation for
powering the system off.  To make it happen, we can separate sysdev_shutdown()
from device_shutdown() and call it directly wherever necessary.

Signed-off-by: Rafael J. Wysocki 
Tested-by: YOSHIFUJI Hideaki / 吉藤英明 
Signed-off-by: Linus Torvalds