pandora-kernel.git
13 years agousb: musb: wake the device before ulpi transfers
Grazvydas Ignotas [Fri, 3 Feb 2012 16:00:28 +0000 (18:00 +0200)]
usb: musb: wake the device before ulpi transfers

musb can be suspended at the time some other driver wants to do ulpi
transfers using otg_io_* functions, and that can cause data abort,
as it happened with isp1704_charger:
http://article.gmane.org/gmane.linux.kernel/1226122

Add pm_runtime to ulpi functions to rectify this. This also adds io_dev
to otg_transceiver so that pm_runtime can be used.

Cc: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
13 years agomusb suspend crash prevent hack
Grazvydas Ignotas [Wed, 1 Feb 2012 13:23:49 +0000 (15:23 +0200)]
musb suspend crash prevent hack

13 years agogpio/omap: disable debounce on idle
Grazvydas Ignotas [Wed, 1 Feb 2012 13:10:52 +0000 (15:10 +0200)]
gpio/omap: disable debounce on idle

After omap2_gpio_prepare_for_idle call it's not guaranteed that given
GPIO module will hit idle, so it might end up in active state but with
debounce clock disabled, which will break input functionality.

Disable debounce feature on idle to avoid this problem.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
13 years agoMerge branches 'pandora-3.2-aufs', 'pandora-3.2-mru', 'pandora-3.2-picks' and 'pandor...
Grazvydas Ignotas [Sun, 15 Jan 2012 18:13:06 +0000 (20:13 +0200)]
Merge branches 'pandora-3.2-aufs', 'pandora-3.2-mru', 'pandora-3.2-picks' and 'pandora-3.2-pnd' into pandora-3.2

13 years agoadd pandora's defconfigs
Grazvydas Ignotas [Tue, 31 May 2011 22:22:17 +0000 (01:22 +0300)]
add pandora's defconfigs

There are 2 defconfigs now:
- arch/arm/configs/omap3_pandora_defconfig
  proposed kernel config to be used for kernel in firmware
- arch/arm/configs/omap3_pandora_debug_defconfig
  defconfig with debugging options enabled and most stuff built in
  for quick debug sessions.

13 years agobq27x00_battery: delay work a bit on external notification
Grazvydas Ignotas [Sat, 14 Jan 2012 22:10:15 +0000 (00:10 +0200)]
bq27x00_battery: delay work a bit on external notification

..to wait for the chip fully update

13 years agotwl4030_charger: pass supplied_to through platform_data
Grazvydas Ignotas [Sat, 14 Jan 2012 22:05:12 +0000 (00:05 +0200)]
twl4030_charger: pass supplied_to through platform_data

13 years agotwl4030_charger: allow to disable charging from userspace
Grazvydas Ignotas [Sat, 14 Jan 2012 16:39:40 +0000 (18:39 +0200)]
twl4030_charger: allow to disable charging from userspace

13 years agotwl4030_charger: ack and ratelimit monitoring events
Grazvydas Ignotas [Sat, 4 Jun 2011 16:40:44 +0000 (19:40 +0300)]
twl4030_charger: ack and ratelimit monitoring events

13 years agomusb VBUS workaround
Grazvydas Ignotas [Wed, 6 Oct 2010 22:12:09 +0000 (01:12 +0300)]
musb VBUS workaround

For some reason VBUS never falls after cable is disconnected
on pandora. The voltage can be even measured with a multimeter.
This is not the case on a friend's beagle. So this hack was written
to work around this.

13 years agopandora: enable vbus
Grazvydas Ignotas [Thu, 12 Jan 2012 23:50:08 +0000 (01:50 +0200)]
pandora: enable vbus

keep it always enabled for now

13 years agopandora: add power data for poweroff
Grazvydas Ignotas [Thu, 12 Jan 2012 15:17:24 +0000 (17:17 +0200)]
pandora: add power data for poweroff

13 years agopower_supply: twl4030: allow USB charging by default
Grazvydas Ignotas [Sat, 26 Feb 2011 18:00:08 +0000 (20:00 +0200)]
power_supply: twl4030: allow USB charging by default

This is disabled in mainline because we don't know amount of current
host device can provide, but enabling it here regardless like we did
with 2.6.27.

13 years agopandora: setup fn keys for hacked twl4030_keypad
Grazvydas Ignotas [Sat, 26 Jun 2010 20:10:18 +0000 (23:10 +0300)]
pandora: setup fn keys for hacked twl4030_keypad

13 years agoinput: add hackish fn handling to twl4030_keypad
Grazvydas Ignotas [Sat, 26 Jun 2010 20:03:59 +0000 (23:03 +0300)]
input: add hackish fn handling to twl4030_keypad

13 years agopandora: add leds_pwm platform data
Grazvydas Ignotas [Sun, 27 Jun 2010 18:36:11 +0000 (21:36 +0300)]
pandora: add leds_pwm platform data

13 years agoleds: add TWL4030 PWM LED driver
Grazvydas Ignotas [Sun, 27 Jun 2010 16:59:03 +0000 (19:59 +0300)]
leds: add TWL4030 PWM LED driver

Some code contributed by Urja Rannikko <urjaman@gmail.com>

13 years agopandora: add backlight platform data
Grazvydas Ignotas [Mon, 21 Jun 2010 21:43:25 +0000 (00:43 +0300)]
pandora: add backlight platform data

13 years agobacklight: add backlight driver for pandora
Grazvydas Ignotas [Mon, 21 Jun 2010 21:29:10 +0000 (00:29 +0300)]
backlight: add backlight driver for pandora

This is fine-tuned driver for pandora's backlight connected to
TWL4030 PWM0 and LED driver chip.

13 years agopandora: add vsense platform data
Grazvydas Ignotas [Sun, 20 Jun 2010 19:30:21 +0000 (22:30 +0300)]
pandora: add vsense platform data

13 years agoinput: add VSense (analog controller) driver
Grazvydas Ignotas [Sun, 20 Jun 2010 18:34:00 +0000 (21:34 +0300)]
input: add VSense (analog controller) driver

This drives analog nubs on pandora.

13 years agopandora: create proc entry early
Grazvydas Ignotas [Tue, 22 Jun 2010 20:40:52 +0000 (23:40 +0300)]
pandora: create proc entry early

this will avoid needing to handle it in drivers.

13 years agoadd Pandora Linux logo :)
Grazvydas Ignotas [Sun, 20 Jun 2010 19:57:19 +0000 (22:57 +0300)]
add Pandora Linux logo :)

13 years agobq27x00 - don't report power-supply change so often.
NeilBrown [Fri, 30 Dec 2011 00:58:49 +0000 (11:58 +1100)]
bq27x00 - don't report power-supply change so often.

A power_supply_changed should only be reported on significant changes
such as transition between charging and not.  Incremental changes
such as charge increasing should not be reported - that can easily
be polled for.

[notasas@gmail.com: refreshed for Pali Rohár's patches]
Signed-off-by: NeilBrown <neilb@suse.de>
13 years agobq27x00_battery: Fix OOPS caused by unregistring bq27x00 driver
Pali Rohár [Tue, 1 Nov 2011 00:43:11 +0000 (01:43 +0100)]
bq27x00_battery: Fix OOPS caused by unregistring bq27x00 driver

* power_supply_unregister call bq27x00_battery_get_property which
  call bq27x00_battery_poll
* make sure that bq27x00_battery_poll will not call
  schedule_delayed_work again after unregister (which cause OOPS)

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
13 years agobq27x00_battery: Fix reporting error messages
Pali Rohár [Tue, 1 Nov 2011 00:43:09 +0000 (01:43 +0100)]
bq27x00_battery: Fix reporting error messages

* Do not be noise if battery is not calibrated (use dev_dbg)

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
13 years agobq27x00_battery: Cache temperature value in converted unit
Pali Rohár [Tue, 1 Nov 2011 00:43:07 +0000 (01:43 +0100)]
bq27x00_battery: Cache temperature value in converted unit

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
13 years agobq27x00_battery: Cache energy property
Pali Rohár [Tue, 1 Nov 2011 00:43:06 +0000 (01:43 +0100)]
bq27x00_battery: Cache energy property

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
13 years agobq27x00_battery: Report -ENODATA if bq27000 battery was not calibrated
Pali Rohár [Tue, 1 Nov 2011 00:43:05 +0000 (01:43 +0100)]
bq27x00_battery: Report -ENODATA if bq27000 battery was not calibrated

* CI (Capacity Inaccurate) flag is set after full reset on bq27000 battery
* when is set, all capacity properties should be reported incorrectly,
  because there was no learning cycle and battery was not calibrated
* instead reporting incorrect values, report -ENODATA

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
13 years agobq27x00_battery: Add support for property POWER_SUPPLY_PROP_CAPACITY_LEVEL
Pali Rohár [Tue, 1 Nov 2011 00:43:04 +0000 (01:43 +0100)]
bq27x00_battery: Add support for property POWER_SUPPLY_PROP_CAPACITY_LEVEL

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
13 years agobq27x00_battery: Do not cache current_now value for bq27000 batery
Pali Rohár [Tue, 1 Nov 2011 00:43:03 +0000 (01:43 +0100)]
bq27x00_battery: Do not cache current_now value for bq27000 batery

* This prevent reporting old current_now value for bq27000
* Also ask for current flags, to make sure that current_now
  will be reported with correct signature

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
13 years agoARM: Expose some PMON registers through sysfs
Mans Rullgard [Sat, 28 Mar 2009 13:05:02 +0000 (13:05 +0000)]
ARM: Expose some PMON registers through sysfs

13 years agoARM: Add option to allow userspace access to performance counters
Mans Rullgard [Tue, 10 Nov 2009 00:52:56 +0000 (00:52 +0000)]
ARM: Add option to allow userspace access to performance counters

This adds an option to allow userspace access to the performance monitor
registers of the Cortex-A8.

Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years agoARM: Add option to allow userspace PLE access
Mans Rullgard [Tue, 10 Nov 2009 00:41:54 +0000 (00:41 +0000)]
ARM: Add option to allow userspace PLE access

This adds a Kconfig option to allow userspace to access the L2 preload
engine (PLE) found in Cortex-A8.

Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years agoARM: Expose some CPU control registers via sysfs
Mans Rullgard [Tue, 10 Nov 2009 00:39:21 +0000 (00:39 +0000)]
ARM: Expose some CPU control registers via sysfs

This creates sysfs files under /sys/devices/system/cpu/cpuN
exposing the values of the control register, auxiliary control
register, and L2 cache auxiliary control register.  Writing to
the files allows setting the value of bits which are safe to
change at any time.

[notasas@gmail.com: add missing include for 3.2]
Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years agoFix apparent typos in twl4030_charger.c
NeilBrown [Mon, 21 Nov 2011 09:17:14 +0000 (20:17 +1100)]
Fix apparent typos in twl4030_charger.c

Signed-off-by: NeilBrown <neilb@suse.de>
13 years agoARM: Add prompt for CONFIG_ALIGNMENT_TRAP
Mans Rullgard [Mon, 13 Oct 2008 19:32:16 +0000 (20:32 +0100)]
ARM: Add prompt for CONFIG_ALIGNMENT_TRAP

This adds a prompt text for CONFIG_ALIGNMENT_TRAP, thus making it
visible in make *config.

Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years agoRevert "usb: musb: fix pm_runtime mismatch"
Grazvydas Ignotas [Fri, 13 Jan 2012 15:10:58 +0000 (17:10 +0200)]
Revert "usb: musb: fix pm_runtime mismatch"

This reverts commit 945d49b38f4e3aa8a570b2fe51f179e7c2181b4d.
It breaks runtipe_suspend, keeps device always on.

13 years agousb: musb: fix shutdown while usb gadget is in use
Grazvydas Ignotas [Thu, 12 Jan 2012 12:25:15 +0000 (14:25 +0200)]
usb: musb: fix shutdown while usb gadget is in use

If we shutdown without stopping the gadget first or removing the cable,
gadget manages to configure itself again:

root@pandora /root# poweroff
The system is going down NOW!
Requesting system poweroff
[   47.714385] musb-hm halted.
[   48.120697]  gadget: suspend
[   48.123748]  gadget: reset config
[   48.127227]  gadget: ecm deactivated
[   48.130981] usb0: gether_disconnect
[   48.281799]  gadget: high-speed config #1: CDC Ethernet (ECM)
[   48.287872]  gadget: init ecm
[   48.290985]  gadget: notify connect false
[   48.295288]  gadget: notify speed 425984000

This is not only unwanted, it's also happening on half-unitialized
state, after musb_shutdown() has returned, which sometimes causes
hardware to fail to work after reboot. Let's better properly stop
gadget on shutdown too.

This patch moves musb_gadget_cleanup out of musb_free(), which has 2
callsites: probe error path and musb_remove. On probe error path it was
superflous since musb_gadget_cleanup is called explicitly there, and
musb_remove() calls musb_shutdown(), so cleanup will get called as before.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
13 years agousb: musb: drop superfluous pm_runtime calls around musb_shutdown
Grazvydas Ignotas [Thu, 12 Jan 2012 12:13:09 +0000 (14:13 +0200)]
usb: musb: drop superfluous pm_runtime calls around musb_shutdown

Since commit 4f9edd2d7e8d "usb: musb: Fix the crash issue during reboot"
musb_shutdown() does pm_runtime_get_sync/pm_runtime_put by itself, so
this no longer needs to be done by the caller. Also, musb_exit_debugfs()
doesn't access the device, so just drop those runtime_pm calls.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
13 years agoARM: OMAP: fix MMC2 loopback clock handling
Grazvydas Ignotas [Wed, 11 Jan 2012 14:03:48 +0000 (16:03 +0200)]
ARM: OMAP: fix MMC2 loopback clock handling

Currently MMC2 setup code can only enable loopback clock and
relies on reset value for boards that need to have it disabled.
This causes a problem with certain bootloaders that always enable
that clock, resulting in unwanted bootloader dependencies.
Fix this by making it disable the clock if board data says so.

13 years agoARM: OMAP: fix erroneous mmc2 clock change on mmc3 setup
Grazvydas Ignotas [Sun, 18 Dec 2011 00:00:40 +0000 (02:00 +0200)]
ARM: OMAP: fix erroneous mmc2 clock change on mmc3 setup

hsmmc23_before_set_reg() can set MMCSDIO2ADPCLKISEL bit, which
enables internal clock for MMC2. Currently this function is also called
by code handling MMC3, and if .internal_clock is set in platform data
(by default it currently is), it will set MMCSDIO2ADPCLKISEL for MMC2
instead of MMC3 (MMC3 doesn't have such bit so nothing actually needs to
be done). This breaks 2nd SD slot on pandora.

Fix this by changing hsmmc23_before_set_reg() to only handle MMC2.
Note that this removes .remux() call for MMC3, but no board currently
needs it and it's also not called for MMC4 and MMC5.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
13 years agoOMAP3: hwmod_data: register dss hwmods after dss_core
Ilya Yanok [Tue, 27 Dec 2011 23:31:33 +0000 (00:31 +0100)]
OMAP3: hwmod_data: register dss hwmods after dss_core

dss_core has to be initialized before any other DSS hwmod. Currently
this is broken as dss_core is listed in chip/revision specific hwmod
lists while other DSS hwmods are listed in common list which is
registered first.

This patch moves DSS hwmods (except for dss_core) to the separate list
which is registered last to ensure that dss_core is already registered.

This solves the problem with BUG() in L3 interrupt handler on boards
with DSS enabled in bootloader.

CC: Tomi Valkeinen <tomi.valkeinen@ti.com>
CC: Archit Taneja <archit@ti.com>
CC: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
13 years agousb: musb: omap2+: save and restore OTG_INTERFSEL
Hema HK [Wed, 7 Sep 2011 16:19:24 +0000 (09:19 -0700)]
usb: musb: omap2+: save and restore OTG_INTERFSEL

we need to save and restore OTG_INTERFSEL register
else we will be unable to function on resume after
OFF mode.

Reported-by: Devaraj Rangasamy <dev@ti.com>
Signed-off-by: Hema HK <hemahk@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
13 years agousb: musb: omap2+: fix context api's
Vikram Pandita [Wed, 7 Sep 2011 16:19:23 +0000 (09:19 -0700)]
usb: musb: omap2+: fix context api's

RxFifoSz, TxFifoSz, RxFifoAddr, TxFifoAddr
are all indexed registers.

So before doing a context save or restore, INDEX register
should be set, then only one gets to the right register offset.

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
13 years agomfd: Add power off functionality to TWL
Igor Grinberg [Sun, 13 Nov 2011 09:49:50 +0000 (11:49 +0200)]
mfd: Add power off functionality to TWL

TWL family of PMICs, used in master mode, have a power off
functionality. The resulting power off sequence shuts down all the SoC
supplies, LDOs, etc. The sequence is described in the datasheets
chapter "Power-Off Sequence".
Note, that board must be wired correctly for the power off to work as
expected.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agommc: omap_hsmmc: use threaded irq handler for card-detect.
NeilBrown [Fri, 30 Dec 2011 01:35:13 +0000 (12:35 +1100)]
mmc: omap_hsmmc: use threaded irq handler for card-detect.

As the card-detect irq handler just schedules work to be done by a
thread, we can use request_threaded_irq to do much of the work for
us.  This means that interrupts which arrive by handle_nested_irq
actually work.

Reviewed-by: Felipe Balbi <balbi@ti.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Kishore Kadiyala <kishorek.kadiyala@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
13 years agoARM: OMAP3: hwmod data: disable multiblock reads on MMC1/2 on OMAP34xx/35xx <= ES2.1
Paul Walmsley [Fri, 16 Dec 2011 06:30:44 +0000 (23:30 -0700)]
ARM: OMAP3: hwmod data: disable multiblock reads on MMC1/2 on OMAP34xx/35xx <= ES2.1

The HSMMC1/HSMMC2 host controllers on OMAP34xx and
OMAP3503/3515/3525/3530 chips at ES levels prior to 3.0 can't do multiple
block reads[1].  Mark the hwmod data appropriately.

Reported by Dave Hylands <dhylands@gmail.com> and Steve Sakoman
<sakoman@gmail.com>.  Thanks to Steve Sakoman for further help
testing this patch.

1. See for example Advisory 2.1.1.128 "MMC: Multiple Block Read
   Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
   Revision F (October 2010) (SPRZ278F), available from
   http://focus.ti.com/lit/er/sprz278f/sprz278f.pdf

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Dave Hylands <dhylands@gmail.com>
Cc: Steve Sakoman <sakoman@gmail.com>
13 years agoARM: OMAP: hwmod data: fix the panic on Nokia RM-680 during boot
Aaro Koskinen [Fri, 16 Dec 2011 05:38:37 +0000 (22:38 -0700)]
ARM: OMAP: hwmod data: fix the panic on Nokia RM-680 during boot

Booting the Linux kernel on Nokia RM-680 board has been broken since
2.6.39 due to the following:

[    0.217193] omap_hwmod: timer12: enabling
[    0.221435] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa304010
[    0.229431] Internal error: : 1028 [#1] SMP
[    0.233825] Modules linked in:
[    0.237060] CPU: 0    Not tainted  (3.2.0-rc4-dirty #46)
[    0.242645] PC is at _update_sysc_cache+0x2c/0x7c
[    0.247589] LR is at _enable+0x1b0/0x2d8
[    0.251708] pc : [<c0026108>]    lr : [<c0026df4>]    psr: 40000013
[    0.251708] sp : ef831f40  ip : ef82f380  fp : c06ac0c0
[    0.263702] r10: 00000000  r9 : c05dfb2c  r8 : ef830000
[    0.269165] r7 : c0027494  r6 : 00000000  r5 : 00000000  r4 : c06608b0
[    0.276000] r3 : fa304000  r2 : 00000010  r1 : c0661e28  r0 : c06608b0
[    0.282806] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    0.290405] Control: 10c5387d  Table: 80004019  DAC: 00000017
[    0.296417] Process swapper (pid: 1, stack limit = 0xef8302f8)
[    0.302520] Stack: (0xef831f40 to 0xef832000)
[    0.307098] 1f40: c06608b0 c0026df4 c06ad094 c0035120 00000001 c06608b0 00000000 c0027530
[    0.315612] 1f60: c0027604 ef830000 c05dfb2c c06608b0 c0642ac0 c0025bf0 c0621234 c062120c
[    0.324127] 1f80: c0621738 00000013 ef830000 c05dfb6c c0621234 c0008688 c062c880 c009eadc
[    0.332641] 1fa0: 0000005f 00000000 c0621738 35390013 00000000 00000000 00000000 0000019a
[    0.341156] 1fc0: c0681cf4 c0621234 c062120c c0621738 00000013 00000000 00000000 00000000
[    0.349670] 1fe0: 00000000 c05d5298 00000000 c05d5200 c0014fa8 c0014fa8 ffff0000 ffff0000
[    0.358184] [<c0026108>] (_update_sysc_cache+0x2c/0x7c) from [<c0026df4>] (_enable+0x1b0/0x2d8)
[    0.367248] [<c0026df4>] (_enable+0x1b0/0x2d8) from [<c0027530>] (_setup+0x9c/0x170)
[    0.375335] [<c0027530>] (_setup+0x9c/0x170) from [<c0025bf0>] (omap_hwmod_for_each+0x38/0x58)
[    0.384307] [<c0025bf0>] (omap_hwmod_for_each+0x38/0x58) from [<c05dfb6c>] (omap_hwmod_setup_all+0x40/0xa0)
[    0.394409] [<c05dfb6c>] (omap_hwmod_setup_all+0x40/0xa0) from [<c0008688>] (do_one_initcall+0x34/0x180)
[    0.404296] [<c0008688>] (do_one_initcall+0x34/0x180) from [<c05d5298>] (kernel_init+0x98/0x144)
[    0.413452] [<c05d5298>] (kernel_init+0x98/0x144) from [<c0014fa8>] (kernel_thread_exit+0x0/0x8)
[    0.422576] Code: e3130c01 1590304c 0590304c 119320b2 (07932002)
[    0.429046] ---[ end trace 1b75b31a2719ed1c ]---
[    0.433959] Kernel panic - not syncing: Attempted to kill init!

Timer 12 is not necessarily available on non-GP devices (see e.g.
http://marc.info/?l=linux-omap&m=129433066521102&w=2), so it should be
registered only on GP OMAPs. With this change it's again possible to
boot RM-680 into the shell. Tested with 3.2-rc4.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
[paul@pwsan.com: changed subject line]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP2+: DMA: Workaround for invalid destination position
Peter Ujfalusi [Fri, 9 Dec 2011 21:38:00 +0000 (13:38 -0800)]
ARM: OMAP2+: DMA: Workaround for invalid destination position

If the DMA destination position has been asked before the
first actual data transfer has been done, the CDAC
register still contains 0 (it is initialized to 0 at
omsp_dma_start).
If CDAC == 0, return the programmed start address.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP2+: DMA: Workaround for invalid source position
Peter Ujfalusi [Fri, 9 Dec 2011 21:38:00 +0000 (13:38 -0800)]
ARM: OMAP2+: DMA: Workaround for invalid source position

If the DMA source position has been asked before the
first actual data transfer has been done, the CSAC
register does not contain valid information.
We can identify this situation by checking the CDAC
register:
CDAC != 0 indicates that the DMA transfer on the channel has
been started already.
When CDAC == 0 we can not trust the CSAC value since it has
not been updated, and can contain random number.
Return the start address in case the DMA has not jet started.

Note: The CDAC register has been initialized to 0 at dma_start
time.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agomfd: Fix twl4030-irq typo
NeilBrown [Sat, 26 Nov 2011 20:17:41 +0000 (07:17 +1100)]
mfd: Fix twl4030-irq typo

overwriten -> overwritten

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Set twl4030-irq tertiary interrupts to be nested/threaded.
NeilBrown [Sat, 26 Nov 2011 20:17:41 +0000 (07:17 +1100)]
mfd: Set twl4030-irq tertiary interrupts to be nested/threaded.

As tertiary interrupts are handled by handle_twl4030_sih calling
handle_nested_irq, they do not need their own separate irq thread.
So mark them as 'nested_thread' interrupts to avoid the extra thread
creation.

Tested on GTA04 Pheonux.

Signed-off-by: NeilBrown <neilb@suse.de>
Tested-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agocpufreq: OMAP: fixup for omap_device changes, include <linux/module.h>
Kevin Hilman [Fri, 30 Sep 2011 17:41:26 +0000 (10:41 -0700)]
cpufreq: OMAP: fixup for omap_device changes, include <linux/module.h>

Minor fixups to work starting with v3.2:
- use the new omap_device API for getting a device by name.
- need to include <linux/module.h>

Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: fix freq_table leak
Nishanth Menon [Fri, 27 May 2011 02:39:20 +0000 (19:39 -0700)]
cpufreq: OMAP: fix freq_table leak

We use a single frequency table for multiple CPUs. But, with
OMAP4, since we have multiple CPUs, the cpu_init call for CPU1
causes freq_table previously allocated for CPU0 to be overwritten.
In addition, we dont free the table on exit path.

We solve this by maintaining an atomic type counter to ensure
just a single table exists at a given time.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: put clk if cpu_init failed
Nishanth Menon [Fri, 27 May 2011 02:39:19 +0000 (19:39 -0700)]
cpufreq: OMAP: put clk if cpu_init failed

Release the mpu_clk in fail paths.

Reported-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: only supports OPP library
Nishanth Menon [Fri, 27 May 2011 02:39:18 +0000 (19:39 -0700)]
cpufreq: OMAP: only supports OPP library

OMAP2 is the only family using clk_[init|exit]_cpufreq_table, however,
the cpufreq code does not currently use clk_init_cpufreq_table. As a
result, it is unusuable for OMAP2 and only usable only on platforms
using OPP library.

Remove the unbalanced clk_exit_cpufreq_table().  Any platforms where
OPPs are not availble will fail on init because a freq table will not
be properly initialized.

Signed-off-by: Nishanth Menon <nm@ti.com>
[khilman@ti.com: changelog edits, and graceful failure mode changes]
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: dont support !freq_table
Nishanth Menon [Fri, 27 May 2011 02:39:17 +0000 (19:39 -0700)]
cpufreq: OMAP: dont support !freq_table

OMAP2+ all have frequency tables, hence the hacks we had for older
silicon do not need to be carried forward. As part of this change,
use cpufreq_frequency_table_target to find the best match for
frequency requested.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: deny initialization if no mpudev
Nishanth Menon [Wed, 25 May 2011 23:38:47 +0000 (16:38 -0700)]
cpufreq: OMAP: deny initialization if no mpudev

if we do not have mpu_dev we normally fail in cpu_init. It is better
to fail driver registration if the devices are not available.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: move clk name decision to init
Nishanth Menon [Wed, 25 May 2011 23:38:46 +0000 (16:38 -0700)]
cpufreq: OMAP: move clk name decision to init

Clk name does'nt need to dynamically detected during clk init.
move them off to driver initialization, if we dont have a clk name,
there is no point in registering the driver anyways. The actual clk
get and put is left at cpu_init and exit functions.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: notify even with bad boot frequency
Colin Cross [Tue, 7 Jun 2011 02:05:29 +0000 (21:05 -0500)]
cpufreq: OMAP: notify even with bad boot frequency

Sometimes, bootloaders starts up with a frequency which is not
in the OPP table. At cpu_init, policy->cur contains the frequency
we pick at boot.  It is possible that system might have fixed
it's boot frequency later on as part of power initialization.
After this condition, the first call to omap_target results in the
following:

omap_getspeed(actual device frequency) != policy->cur(frequency that
cpufreq thinks that the system is at), and it is possible that
freqs.old == freqs.new (because the governor requested a scale down).

We exit without triggering the notifiers in the current code, which
does'nt let code which depends on cpufreq_notify_transition to have
accurate information as to what the system frequency is.

Instead, we do a normal transition if policy->cur is wrong, then,
freqs.old will be the actual cpu frequency, freqs.new will be the
actual new cpu frequency and all required notifiers have the accurate
information.

Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Colin Cross <ccross@google.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: Enable all CPUs in shared policy mask
Todd Poynor [Tue, 7 Jun 2011 20:57:52 +0000 (13:57 -0700)]
cpufreq: OMAP: Enable all CPUs in shared policy mask

Enable all CPUs in the shared policy in the CPU init callback.
Otherwise, the governor CPUFREQ_GOV_START event is invoked with
a policy that only includes the first CPU, leaving other CPUs
uninitialized by the governor.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: Add SMP support for OMAP4+
Russell King [Wed, 21 Sep 2011 23:53:00 +0000 (16:53 -0700)]
cpufreq: OMAP: Add SMP support for OMAP4+

On OMAP SMP configuartion, both processors share the voltage
and clock. So both CPUs needs to be scaled together and hence
needs software co-ordination.

Also, update lpj with reference value to avoid progressive error.

Adjust _both_ the per-cpu loops_per_jiffy and global lpj. Calibrate
them with with reference to the initial values to avoid a
progressively bigger and bigger error in the value over time.

While at this, re-use the notifiers for UP/SMP since on UP machine or
UP_ON_SMP policy->cpus mask would contain only the boot CPU.

Based on initial SMP support by Santosh Shilimkar.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[khilman@ti.com: due to overlap/rework, combined original Santosh patch
                 and Russell's rework]
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: cleanup for multi-SoC support, move into drivers/cpufreq
Santosh Shilimkar [Thu, 12 Aug 2010 00:02:43 +0000 (17:02 -0700)]
cpufreq: OMAP: cleanup for multi-SoC support, move into drivers/cpufreq

Move OMAP cpufreq driver from arch/arm/mach-omap2 into
drivers/cpufreq, along with a few cleanups:

- generalize support for better handling of different SoCs in the OMAP
- use OPP layer instead of OMAP clock internals for frequency table init

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[khilman@ti.com: move to drivers]
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agoaufs: aufs3 kbuild patch
aufs project [Tue, 10 Jan 2012 16:03:54 +0000 (18:03 +0200)]
aufs: aufs3 kbuild patch

13 years agoaufs: aufs3 standalone patch
aufs project [Tue, 10 Jan 2012 16:03:53 +0000 (18:03 +0200)]
aufs: aufs3 standalone patch

13 years agoaufs: aufs3 base patch
aufs project [Tue, 10 Jan 2012 16:03:53 +0000 (18:03 +0200)]
aufs: aufs3 base patch

13 years agoaufs: add files
aufs project [Tue, 10 Jan 2012 16:03:52 +0000 (18:03 +0200)]
aufs: add files

13 years agoLinux 3.2.1 v3.2.1
Greg Kroah-Hartman [Thu, 12 Jan 2012 19:42:45 +0000 (11:42 -0800)]
Linux 3.2.1

13 years agoxfs: fix acl count validation in xfs_acl_from_disk()
Xi Wang [Mon, 12 Dec 2011 21:55:52 +0000 (21:55 +0000)]
xfs: fix acl count validation in xfs_acl_from_disk()

commit 093019cf1b18dd31b2c3b77acce4e000e2cbc9ce upstream.

Commit fa8b18ed didn't prevent the integer overflow and possible
memory corruption.  "count" can go negative and bypass the check.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agousb: cdc-acm: Fix acm_tty_hangup() vs. acm_tty_close() race
Thilo-Alexander Ginkel [Sat, 17 Dec 2011 09:55:10 +0000 (10:55 +0100)]
usb: cdc-acm: Fix acm_tty_hangup() vs. acm_tty_close() race

[Not upstream as it was fixed differently for 3.3 with a much more
"intrusive" rework of the driver - gregkh]

There is a race condition involving acm_tty_hangup() and acm_tty_close()
where hangup() would attempt to access tty->driver_data without proper
locking and NULL checking after close() has potentially already set it
to NULL.  One possibility to (sporadically) trigger this behavior is to
perform a suspend/resume cycle with a running WWAN data connection.

This patch addresses the issue by introducing a NULL check for
tty->driver_data in acm_tty_hangup() protected by open_mutex and exiting
gracefully when hangup() is invoked on a device that has already been
closed.

Signed-off-by: Thilo-Alexander Ginkel <thilo@ginkel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agobonding: fix error handling if slave is busy (v2)
stephen hemminger [Sat, 31 Dec 2011 13:26:46 +0000 (13:26 +0000)]
bonding: fix error handling if slave is busy (v2)

commit f7d9821a6a9c83450ac35e76d3709e32fd38b76f upstream.

If slave device already has a receive handler registered, then the
error unwind of bonding device enslave function is broken.

The following will leave a pointer to freed memory in the slave
device list, causing a later kernel panic.
# modprobe dummy
# ip li add dummy0-1 link dummy0 type macvlan
# modprobe bonding
# echo +dummy0 >/sys/class/net/bond0/bonding/slaves

The fix is to detach the slave (which removes it from the list)
in the unwind path.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Reviewed-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoasix: fix infinite loop in rx_fixup()
Aurelien Jacobs [Sat, 7 Jan 2012 20:15:16 +0000 (12:15 -0800)]
asix: fix infinite loop in rx_fixup()

commit 6c15d74defd38e7e7f8805392578b7a1d508097e upstream.

At this point if skb->len happens to be 2, the subsequant skb_pull(skb, 4)
call won't work and the skb->len won't be decreased and won't ever reach 0,
resulting in an infinite loop.

With an ASIX 88772 under heavy load, without this patch, rx_fixup() reaches
an infinite loop in less than a minute. With this patch applied,
no infinite loop even after hours of heavy load.

Signed-off-by: Aurelien Jacobs <aurel@gnuage.org>
Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoigmp: Avoid zero delay when receiving odd mixture of IGMP queries
Ben Hutchings [Mon, 9 Jan 2012 22:06:46 +0000 (14:06 -0800)]
igmp: Avoid zero delay when receiving odd mixture of IGMP queries

commit a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27 upstream.

Commit 5b7c84066733c5dfb0e4016d939757b38de189e4 ('ipv4: correct IGMP
behavior on v3 query during v2-compatibility mode') added yet another
case for query parsing, which can result in max_delay = 0.  Substitute
a value of 1, as in the usual v3 case.

Reported-by: Simon McVittie <smcv@debian.org>
References: http://bugs.debian.org/654876
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agousb: ch9: fix up MaxStreams helper
Felipe Balbi [Mon, 2 Jan 2012 11:35:41 +0000 (13:35 +0200)]
usb: ch9: fix up MaxStreams helper

commit 18b7ede5f7ee2092aedcb578d3ac30bd5d4fc23c upstream.

[ removed the dwc3 portion of the patch as it didn't apply to
older kernels - gregkh]

According to USB 3.0 Specification Table 9-22, if
bmAttributes [4:0] are set to zero, it means "no
streams supported", but the way this helper was
defined on Linux, we will *always* have one stream
which might cause several problems.

For example on DWC3, we would tell the controller
endpoint has streams enabled and yet start transfers
with Stream ID set to 0, which would goof up the host
side.

While doing that, convert the macro to an inline
function due to the different checks we now need.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoxhci: Properly handle COMP_2ND_BW_ERR
Hans de Goede [Wed, 4 Jan 2012 22:29:18 +0000 (23:29 +0100)]
xhci: Properly handle COMP_2ND_BW_ERR

commit 71d85724bdd947a3b42a88d08af79f290a1a767b upstream.

I encountered a result of COMP_2ND_BW_ERR while improving how the pwc
webcam driver handles not having the full usb1 bandwidth available to
itself.

I created the following test setup, a NEC xhci controller with a
single TT USB 2 hub plugged into it, with a usb keyboard and a pwc webcam
plugged into the usb2 hub. This caused the following to show up in dmesg
when trying to stream from the pwc camera at its highest alt setting:

xhci_hcd 0000:01:00.0: ERROR: unexpected command completion code 0x23.
usb 6-2.1: Not enough bandwidth for altsetting 9

And usb_set_interface returned -EINVAL, which caused my pwc code to not
do the right thing as it expected -ENOSPC.

This patch makes the xhci driver properly handle COMP_2ND_BW_ERR and makes
usb_set_interface return -ENOSPC as expected.

This should be backported to stable kernels as old as 2.6.32.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agousb: fix number of mapped SG DMA entries
Clemens Ladisch [Sat, 3 Dec 2011 22:41:31 +0000 (23:41 +0100)]
usb: fix number of mapped SG DMA entries

commit bc677d5b64644c399cd3db6a905453e611f402ab upstream.

Add a new field num_mapped_sgs to struct urb so that we have a place to
store the number of mapped entries and can also retain the original
value of entries in num_sgs.  Previously, usb_hcd_map_urb_for_dma()
would overwrite this with the number of mapped entries, which would
break dma_unmap_sg() because it requires the original number of entries.

This fixes warnings like the following when using USB storage devices:
 ------------[ cut here ]------------
 WARNING: at lib/dma-debug.c:902 check_unmap+0x4e4/0x695()
 ehci_hcd 0000:00:12.2: DMA-API: device driver frees DMA sg list with different entry count [map count=4] [unmap count=1]
 Modules linked in: ohci_hcd ehci_hcd
 Pid: 0, comm: kworker/0:1 Not tainted 3.2.0-rc2+ #319
 Call Trace:
  <IRQ>  [<ffffffff81036d3b>] warn_slowpath_common+0x80/0x98
  [<ffffffff81036de7>] warn_slowpath_fmt+0x41/0x43
  [<ffffffff811fa5ae>] check_unmap+0x4e4/0x695
  [<ffffffff8105e92c>] ? trace_hardirqs_off+0xd/0xf
  [<ffffffff8147208b>] ? _raw_spin_unlock_irqrestore+0x33/0x50
  [<ffffffff811fa84a>] debug_dma_unmap_sg+0xeb/0x117
  [<ffffffff8137b02f>] usb_hcd_unmap_urb_for_dma+0x71/0x188
  [<ffffffff8137b166>] unmap_urb_for_dma+0x20/0x22
  [<ffffffff8137b1c5>] usb_hcd_giveback_urb+0x5d/0xc0
  [<ffffffffa0000d02>] ehci_urb_done+0xf7/0x10c [ehci_hcd]
  [<ffffffffa0001140>] qh_completions+0x429/0x4bd [ehci_hcd]
  [<ffffffffa000340a>] ehci_work+0x95/0x9c0 [ehci_hcd]
  ...
 ---[ end trace f29ac88a5a48c580 ]---
 Mapped at:
  [<ffffffff811faac4>] debug_dma_map_sg+0x45/0x139
  [<ffffffff8137bc0b>] usb_hcd_map_urb_for_dma+0x22e/0x478
  [<ffffffff8137c494>] usb_hcd_submit_urb+0x63f/0x6fa
  [<ffffffff8137d01c>] usb_submit_urb+0x2c7/0x2de
  [<ffffffff8137dcd4>] usb_sg_wait+0x55/0x161

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoUSB: Add USB-ID for Multiplex RC serial adapter to cp210x.c
Malte Schröder [Thu, 5 Jan 2012 19:34:40 +0000 (20:34 +0100)]
USB: Add USB-ID for Multiplex RC serial adapter to cp210x.c

commit 08e87d0d773dc9ca5faf4c3306e238ed0ea129b0 upstream.

Hi, below patch adds the USB-ID of the serial adapters sold by
Multiplex RC (www.multiplex-rc.de).

Signed-off-by: Malte Schröder <maltesch@gmx.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agousb: option: add ZD Incorporated HSPA modem
Janne Snabb [Wed, 28 Dec 2011 19:36:00 +0000 (19:36 +0000)]
usb: option: add ZD Incorporated HSPA modem

commit 3c8c9316710b83e906e425024153bf0929887b59 upstream.

Add support for Chinese Noname HSPA USB modem which is apparently
manufactured by a company called ZD Incorporated (based on texts in the
Windows drivers).

This product is available at least from Dealextreme (SKU 80032) and
possibly in India with name Olive V-MW250. It is based on Qualcomm
MSM6280 chip.

I needed to also add "options usb-storage quirks=0685:7000:i" in modprobe
configuration because udevd or the kernel keeps poking the embedded
fake-cd-rom which fails and causes the device to reset. There might be
a better way to accomplish the same. usb_modeswitch is not needed with
this device.

Signed-off-by: Janne Snabb <snabb@epipe.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoUSB: omninet: fix write_room
Johan Hovold [Sun, 6 Nov 2011 18:06:21 +0000 (19:06 +0100)]
USB: omninet: fix write_room

commit 694c6301e515bad574af74b6552134c4d9dcb334 upstream.

Fix regression introduced by commit 507ca9bc047666 ([PATCH] USB: add
ability for usb-serial drivers to determine if their write urb is
currently being used.) which inverted the logic in write_room so that it
returns zero when the write urb is actually free.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agousb: musb: fix pm_runtime mismatch
Felipe Contreras [Mon, 19 Dec 2011 20:01:54 +0000 (22:01 +0200)]
usb: musb: fix pm_runtime mismatch

commit 772aed45b604c5ff171f0f12c12392d868333f79 upstream.

In musb_init_controller() there's a pm_runtime_put(), but there's no
pm_runtime_get(), which creates a mismatch that causes the driver to
sleep when it shouldn't.

This was introduced in 7acc619[1], but it wasn't triggered in my setup
until 18a2689[2] was merged to Linus' branch at point df0914[3]. IOW;
when PM is working as it was supposed to.

However, it seems most of the time this is used in a way that keeps the
counter above 0, so nobody noticed. Also, it seems to depend on the
configuration used in versions before 3.1, but not later (or in it).

I found the problem by loading isp1704_charger before any usb gadgets:
http://article.gmane.org/gmane.linux.kernel/1226122

All versions after 2.6.39 are affected.

[1] usb: musb: Idle path retention and offmode support for OMAP3
[2] OMAP2+: musb: hwmod adaptation for musb registration
[3] Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6

Cc: Hema HK <hemahk@ti.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
13 years agoUSB: add quirk for another camera
Oliver Neukum [Tue, 3 Jan 2012 08:58:54 +0000 (09:58 +0100)]
USB: add quirk for another camera

commit 35284b3d2f68a8a3703745e629999469f78386b5 upstream.

The Guillemot Webcam Hercules Dualpix Exchange camera
has been reported with a second ID.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoUSB: pxa168: Fix compilation error
Tanmay Upadhyay [Thu, 8 Dec 2011 04:33:49 +0000 (10:03 +0530)]
USB: pxa168: Fix compilation error

commit 35657c4d72925936c7219cc5caac118ca632acc2 upstream.

After commit c430131a02d677aa708f56342c1565edfdacb3c0 (Support
controllers with big endian capability regs), HC_LENGTH takes
two arguments. This patch fixes following compilation error:

In file included from drivers/usb/host/ehci-hcd.c:1323:
drivers/usb/host/ehci-pxa168.c:302:54: error: macro "HC_LENGTH" requires 2 arguments, but only 1 given
In file included from drivers/usb/host/ehci-hcd.c:1323:
drivers/usb/host/ehci-pxa168.c: In function 'ehci_pxa168_drv_probe':
drivers/usb/host/ehci-pxa168.c:302: error: 'HC_LENGTH' undeclared (first use in this function)
drivers/usb/host/ehci-pxa168.c:302: error: (Each undeclared identifier is reported only once
drivers/usb/host/ehci-pxa168.c:302: error: for each function it appears in.)

Signed-off-by: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agousb: usb-storage doesn't support dynamic id currently, the patch disables the feature...
Huajun Li [Wed, 4 Jan 2012 11:25:33 +0000 (19:25 +0800)]
usb: usb-storage doesn't support dynamic id currently, the patch disables the feature to fix an oops

commit 1a3a026ba1b6bbfe0b7f79ab38cf991d691e7c9a upstream.

Echo vendor and product number of a non usb-storage device to
usb-storage driver's new_id, then plug in the device to host and you
will find following oops msg, the root cause is usb_stor_probe1()
refers invalid id entry if giving a dynamic id, so just disable the
feature.

[ 3105.018012] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC
[ 3105.018062] CPU 0
[ 3105.018075] Modules linked in: usb_storage usb_libusual bluetooth
dm_crypt binfmt_misc snd_hda_codec_analog snd_hda_intel snd_hda_codec
snd_hwdep hp_wmi ppdev sparse_keymap snd_pcm snd_seq_midi snd_rawmidi
snd_seq_midi_event snd_seq snd_timer snd_seq_device psmouse snd
serio_raw tpm_infineon soundcore i915 snd_page_alloc tpm_tis
parport_pc tpm tpm_bios drm_kms_helper drm i2c_algo_bit video lp
parport usbhid hid sg sr_mod sd_mod ehci_hcd uhci_hcd usbcore e1000e
usb_common floppy
[ 3105.018408]
[ 3105.018419] Pid: 189, comm: khubd Tainted: G          I  3.2.0-rc7+
#29 Hewlett-Packard HP Compaq dc7800p Convertible Minitower/0AACh
[ 3105.018481] RIP: 0010:[<ffffffffa045830d>]  [<ffffffffa045830d>]
usb_stor_probe1+0x2fd/0xc20 [usb_storage]
[ 3105.018536] RSP: 0018:ffff880056a3d830  EFLAGS: 00010286
[ 3105.018562] RAX: ffff880065f4e648 RBX: ffff88006bb28000 RCX: 0000000000000000
[ 3105.018597] RDX: ffff88006f23c7b0 RSI: 0000000000000001 RDI: 0000000000000206
[ 3105.018632] RBP: ffff880056a3d900 R08: 0000000000000000 R09: ffff880067365000
[ 3105.018665] R10: 00000000000002ac R11: 0000000000000010 R12: ffff6000b41a7340
[ 3105.018698] R13: ffff880065f4ef60 R14: ffff88006bb28b88 R15: ffff88006f23d270
[ 3105.018733] FS:  0000000000000000(0000) GS:ffff88007a200000(0000)
knlGS:0000000000000000
[ 3105.018773] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 3105.018801] CR2: 00007fc99c8c4650 CR3: 0000000001e05000 CR4: 00000000000006f0
[ 3105.018835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 3105.018870] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 3105.018906] Process khubd (pid: 189, threadinfo ffff880056a3c000,
task ffff88005677a400)
[ 3105.018945] Stack:
[ 3105.018959]  0000000000000000 0000000000000000 ffff880056a3d8d0
0000000000000002
[ 3105.019011]  0000000000000000 ffff880056a3d918 ffff880000000000
0000000000000002
[ 3105.019058]  ffff880056a3d8d0 0000000000000012 ffff880056a3d8d0
0000000000000006
[ 3105.019105] Call Trace:
[ 3105.019128]  [<ffffffffa0458cd4>] storage_probe+0xa4/0xe0 [usb_storage]
[ 3105.019173]  [<ffffffffa0097822>] usb_probe_interface+0x172/0x330 [usbcore]
[ 3105.019211]  [<ffffffff815fda67>] driver_probe_device+0x257/0x3b0
[ 3105.019243]  [<ffffffff815fdd43>] __device_attach+0x73/0x90
[ 3105.019272]  [<ffffffff815fdcd0>] ? __driver_attach+0x110/0x110
[ 3105.019303]  [<ffffffff815fb93c>] bus_for_each_drv+0x9c/0xf0
[ 3105.019334]  [<ffffffff815fd6c7>] device_attach+0xf7/0x120
[ 3105.019364]  [<ffffffff815fc905>] bus_probe_device+0x45/0x80
[ 3105.019396]  [<ffffffff815f98a6>] device_add+0x876/0x990
[ 3105.019434]  [<ffffffffa0094e42>] usb_set_configuration+0x822/0x9e0 [usbcore]
[ 3105.019479]  [<ffffffffa00a3492>] generic_probe+0x62/0xf0 [usbcore]
[ 3105.019518]  [<ffffffffa0097a46>] usb_probe_device+0x66/0xb0 [usbcore]
[ 3105.019555]  [<ffffffff815fda67>] driver_probe_device+0x257/0x3b0
[ 3105.019589]  [<ffffffff815fdd43>] __device_attach+0x73/0x90
[ 3105.019617]  [<ffffffff815fdcd0>] ? __driver_attach+0x110/0x110
[ 3105.019648]  [<ffffffff815fb93c>] bus_for_each_drv+0x9c/0xf0
[ 3105.019680]  [<ffffffff815fd6c7>] device_attach+0xf7/0x120
[ 3105.019709]  [<ffffffff815fc905>] bus_probe_device+0x45/0x80
[ 3105.021040] usb usb6: usb auto-resume
[ 3105.021045] usb usb6: wakeup_rh
[ 3105.024849]  [<ffffffff815f98a6>] device_add+0x876/0x990
[ 3105.025086]  [<ffffffffa0088987>] usb_new_device+0x1e7/0x2b0 [usbcore]
[ 3105.025086]  [<ffffffffa008a4d7>] hub_thread+0xb27/0x1ec0 [usbcore]
[ 3105.025086]  [<ffffffff810d5200>] ? wake_up_bit+0x50/0x50
[ 3105.025086]  [<ffffffffa00899b0>] ? usb_remote_wakeup+0xa0/0xa0 [usbcore]
[ 3105.025086]  [<ffffffff810d49b8>] kthread+0xd8/0xf0
[ 3105.025086]  [<ffffffff81939884>] kernel_thread_helper+0x4/0x10
[ 3105.025086]  [<ffffffff8192a8c0>] ? _raw_spin_unlock_irq+0x50/0x80
[ 3105.025086]  [<ffffffff8192b1b4>] ? retint_restore_args+0x13/0x13
[ 3105.025086]  [<ffffffff810d48e0>] ? __init_kthread_worker+0x80/0x80
[ 3105.025086]  [<ffffffff81939880>] ? gs_change+0x13/0x13
[ 3105.025086] Code: 00 48 83 05 cd ad 00 00 01 48 83 05 cd ad 00 00
01 4c 8b ab 30 0c 00 00 48 8b 50 08 48 83 c0 30 48 89 45 a0 4c 89 a3
40 0c 00 00 <41> 0f b6 44 24 10 48 89 55 a8 3c ff 0f 84 b8 04 00 00 48
83 05
[ 3105.025086] RIP  [<ffffffffa045830d>] usb_stor_probe1+0x2fd/0xc20
[usb_storage]
[ 3105.025086]  RSP <ffff880056a3d830>
[ 3105.060037] hub 6-0:1.0: hub_resume
[ 3105.062616] usb usb5: usb auto-resume
[ 3105.064317] ehci_hcd 0000:00:1d.7: resume root hub
[ 3105.094809] ---[ end trace a7919e7f17c0a727 ]---
[ 3105.130069] hub 5-0:1.0: hub_resume
[ 3105.132131] usb usb4: usb auto-resume
[ 3105.132136] usb usb4: wakeup_rh
[ 3105.180059] hub 4-0:1.0: hub_resume
[ 3106.290052] usb usb6: suspend_rh (auto-stop)
[ 3106.290077] usb usb4: suspend_rh (auto-stop)

Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoUSB: isight: fix kernel bug when loading firmware
Greg Kroah-Hartman [Mon, 5 Dec 2011 22:02:59 +0000 (14:02 -0800)]
USB: isight: fix kernel bug when loading firmware

commit 59bf5cf94f0fa3b08fb1258b52649077b7d0914d upstream.

We were sending data on the stack when uploading firmware, which causes
some machines fits, and is not allowed.  Fix this by using the buffer we
already had around for this very purpose.

Reported-by: Wouter M. Koolen <wmkoolen@cwi.nl>
Tested-by: Wouter M. Koolen <wmkoolen@cwi.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agodrivers/usb/class/cdc-acm.c: clear dangling pointer
Julia Lawall [Fri, 23 Dec 2011 13:02:55 +0000 (14:02 +0100)]
drivers/usb/class/cdc-acm.c: clear dangling pointer

commit e7c8e8605d0bafc705ff27f9da98a1668427cc0f upstream.

On some failures, the country_code field of an acm structure is freed
without freeing the acm structure itself.  Elsewhere, operations including
memcpy and kfree are performed on the country_code field.  The patch sets
the country_code field to NULL when it is freed, and likewise sets the
country_code_size field to 0.

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoudf: Fix deadlock when converting file from in-ICB one to normal one
Jan Kara [Sat, 10 Dec 2011 01:30:48 +0000 (02:30 +0100)]
udf: Fix deadlock when converting file from in-ICB one to normal one

commit d2eb8c359309ec45d6bf5b147303ab8e13be86ea upstream.

During BKL removal in 2.6.38, conversion of files from in-ICB format to normal
format got broken. We call ->writepage with i_data_sem held but udf_get_block()
also acquires i_data_sem thus creating A-A deadlock.

We fix the problem by dropping i_data_sem before calling ->writepage() which is
safe since i_mutex still protects us against any changes in the file. Also fix
pagelock - i_data_sem lock inversion in udf_expand_file_adinicb() by dropping
i_data_sem before calling find_or_create_page().

Reported-by: Matthias Matiak <netzpython@mail-on.us>
Tested-by: Matthias Matiak <netzpython@mail-on.us>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agocgroup: fix to allow mounting a hierarchy by name
Li Zefan [Tue, 27 Dec 2011 06:25:55 +0000 (14:25 +0800)]
cgroup: fix to allow mounting a hierarchy by name

commit 0d19ea866562e46989412a0676412fa0983c9ce7 upstream.

If we mount a hierarchy with a specified name, the name is unique,
and we can use it to mount the hierarchy without specifying its
set of subsystem names. This feature is documented is
Documentation/cgroups/cgroups.txt section 2.3

Here's an example:

# mount -t cgroup -o cpuset,name=myhier xxx /cgroup1
# mount -t cgroup -o name=myhier xxx /cgroup2

But it was broken by commit 32a8cf235e2f192eb002755076994525cdbaa35a
(cgroup: make the mount options parsing more accurate)

This fixes the regression.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoatmel_serial: fix spinlock lockup in RS485 code
Claudio Scordino [Fri, 16 Dec 2011 14:08:49 +0000 (15:08 +0100)]
atmel_serial: fix spinlock lockup in RS485 code

commit dbf1115d3f8c7052788aa4e6e46abd27f3b3eeba upstream.

Patch to fix a spinlock lockup in the driver that sometimes happens when the
tasklet starts.

Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Signed-off-by: Dave Bender <codehero@gmail.com>
Tested-by: Dave Bender <codehero@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agousbfs: Fix oops related to user namespace conversion.
Sarah Sharp [Fri, 16 Dec 2011 19:26:30 +0000 (11:26 -0800)]
usbfs: Fix oops related to user namespace conversion.

commit 1b41c8321e495337e877ca02d0b9680bc4112eff upstream.

When running the Point Grey "flycap" program for their USB 3.0 camera
(which was running as a USB 2.0 device for some reason), I trigger this
oops whenever I try to open a video stream:

Dec 15 16:48:34 puck kernel: [ 1798.715559] BUG: unable to handle kernel NULL pointer dereference at           (null)
Dec 15 16:48:34 puck kernel: [ 1798.719153] IP: [<ffffffff8147841e>] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.720991] PGD 6f833067 PUD 6fc56067 PMD 0
Dec 15 16:48:34 puck kernel: [ 1798.722815] Oops: 0002 [#1] SMP
Dec 15 16:48:34 puck kernel: [ 1798.724627] CPU 0
Dec 15 16:48:34 puck kernel: [ 1798.724636] Modules linked in: ecryptfs encrypted_keys sha1_generic trusted binfmt_misc sha256_generic aesni_intel cryptd aes_x86_64 aes_generic parport_pc dm_crypt ppdev joydev snd_hda_codec_hdmi snd_hda_codec_conexant arc4 iwlwifi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi mac80211 snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer btusb uvcvideo snd_seq_device bluetooth videodev psmouse snd v4l2_compat_ioctl32 serio_raw tpm_tis cfg80211 tpm tpm_bios nvram soundcore snd_page_alloc lp parport i915 xhci_hcd ahci libahci drm_kms_helper drm sdhci_pci sdhci e1000e i2c_algo_bit video
Dec 15 16:48:34 puck kernel: [ 1798.734212]
Dec 15 16:48:34 puck kernel: [ 1798.736162] Pid: 2713, comm: FlyCap2 Not tainted 3.2.0-rc5+ #28 LENOVO 4286CTO/4286CTO
Dec 15 16:48:34 puck kernel: [ 1798.738148] RIP: 0010:[<ffffffff8147841e>]  [<ffffffff8147841e>] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.740134] RSP: 0018:ffff88005715fd78  EFLAGS: 00010296
Dec 15 16:48:34 puck kernel: [ 1798.742118] RAX: 00000000fffffff4 RBX: ffff88006fe8f900 RCX: 0000000000004118
Dec 15 16:48:34 puck kernel: [ 1798.744116] RDX: 0000000001000000 RSI: 0000000000016390 RDI: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.746087] RBP: ffff88005715fd88 R08: 0000000000000000 R09: ffffffff8146f22e
Dec 15 16:48:34 puck kernel: [ 1798.748018] R10: ffff88006e520ac0 R11: 0000000000000001 R12: ffff88005715fe28
Dec 15 16:48:34 puck kernel: [ 1798.749916] R13: ffff88005d31df00 R14: ffff88006fe8f900 R15: 00007f688c995cb8
Dec 15 16:48:34 puck kernel: [ 1798.751785] FS:  00007f68a366da40(0000) GS:ffff880100200000(0000) knlGS:0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.753659] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 15 16:48:34 puck kernel: [ 1798.755509] CR2: 0000000000000000 CR3: 00000000706bb000 CR4: 00000000000406f0
Dec 15 16:48:34 puck kernel: [ 1798.757334] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.759124] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Dec 15 16:48:34 puck kernel: [ 1798.760871] Process FlyCap2 (pid: 2713, threadinfo ffff88005715e000, task ffff88006c675b80)
Dec 15 16:48:34 puck kernel: [ 1798.762605] Stack:
Dec 15 16:48:34 puck kernel: [ 1798.764297]  ffff88005715fe28 0000000000000000 ffff88005715fe08 ffffffff81479058
Dec 15 16:48:34 puck kernel: [ 1798.766020]  0000000000000000 ffffea0000004000 ffff880000004118 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.767750]  ffff880000000001 ffff88006e520ac0 fffffff46fd81180 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.769472] Call Trace:
Dec 15 16:48:34 puck kernel: [ 1798.771147]  [<ffffffff81479058>] proc_do_submiturb+0x778/0xa00
Dec 15 16:48:34 puck kernel: [ 1798.772798]  [<ffffffff8147a5fd>] usbdev_do_ioctl+0x24d/0x1200
Dec 15 16:48:34 puck kernel: [ 1798.774410]  [<ffffffff8147b5de>] usbdev_ioctl+0xe/0x20
Dec 15 16:48:34 puck kernel: [ 1798.775975]  [<ffffffff81189259>] do_vfs_ioctl+0x99/0x600
Dec 15 16:48:34 puck kernel: [ 1798.777534]  [<ffffffff81189851>] sys_ioctl+0x91/0xa0
Dec 15 16:48:34 puck kernel: [ 1798.779088]  [<ffffffff816247c2>] system_call_fastpath+0x16/0x1b
ec 15 16:48:34 puck kernel: [ 1798.780634] Code: 51 ff ff ff e9 29 ff ff ff 0f 1f 40 00 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 48 89 fb 48 8b 7f 18 e8 a6 ea c0 ff 4
8 8b 7b 20 <f0> ff 0f 0f 94 c0 84 c0 74 05 e8 d3 99 c1 ff 48 8b 43 40 48 8b
Dec 15 16:48:34 puck kernel: [ 1798.783970] RIP  [<ffffffff8147841e>] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.785630]  RSP <ffff88005715fd78>
Dec 15 16:48:34 puck kernel: [ 1798.787274] CR2: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.794728] ---[ end trace 52894d3355f88d19 ]---

markup_oops.pl says the oops is in put_cred:

 ffffffff81478401:      48 89 e5                mov    %rsp,%rbp
 ffffffff81478404:      53                      push   %rbx
 ffffffff81478405:      48 83 ec 08             sub    $0x8,%rsp
 ffffffff81478409:      e8 f2 c0 1a 00          callq  ffffffff81624500 <mcount>
 ffffffff8147840e:      48 89 fb                mov    %rdi,%rbx   |  %ebx => ffff88006fe8f900
        put_pid(as->pid);
 ffffffff81478411:      48 8b 7f 18             mov    0x18(%rdi),%rdi
 ffffffff81478415:      e8 a6 ea c0 ff          callq  ffffffff81086ec0 <put_pid>
        put_cred(as->cred);
 ffffffff8147841a:      48 8b 7b 20             mov    0x20(%rbx),%rdi |  %edi => 0  %ebx = ffff88006fe8f900
  */
 static inline int atomic_dec_and_test(atomic_t *v)
 {
        unsigned char c;

        asm volatile(LOCK_PREFIX "decl %0; sete %1"
*ffffffff8147841e:      f0 ff 0f                lock decl (%rdi)   |  %edi = 0 <--- faulting instruction
 ffffffff81478421:      0f 94 c0                sete   %al
 static inline void put_cred(const struct cred *_cred)
 {
        struct cred *cred = (struct cred *) _cred;

        validate_creds(cred);
        if (atomic_dec_and_test(&(cred)->usage))
 ffffffff81478424:      84 c0                   test   %al,%al
 ffffffff81478426:      74 05                   je     ffffffff8147842d <free_async+0x2d>
                __put_cred(cred);
 ffffffff81478428:      e8 d3 99 c1 ff          callq  ffffffff81091e00 <__put_cred>
        kfree(as->urb->transfer_buffer);
 ffffffff8147842d:      48 8b 43 40             mov    0x40(%rbx),%rax
 ffffffff81478431:      48 8b 78 68             mov    0x68(%rax),%rdi
 ffffffff81478435:      e8 a6 e1 ce ff          callq  ffffffff811665e0 <kfree>
        kfree(as->urb->setup_packet);
 ffffffff8147843a:      48 8b 43 40             mov    0x40(%rbx),%rax
 ffffffff8147843e:      48 8b b8 90 00 00 00    mov    0x90(%rax),%rdi
 ffffffff81478445:      e8 96 e1 ce ff          callq  ffffffff811665e0 <kfree>
        usb_free_urb(as->urb);
 ffffffff8147844a:      48 8b 7b 40             mov    0x40(%rbx),%rdi
 ffffffff8147844e:      e8 0d 6b ff ff          callq  ffffffff8146ef60 <usb_free_urb>

This bug seems to have been introduced by commit
d178bc3a708f39cbfefc3fab37032d3f2511b4ec "user namespace: usb: make usb
urbs user namespace aware (v2)"

I'm not sure if this is right fix, but it does stop the oops.

Unfortunately, the Point Grey software still refuses to work, but it's a
closed source app, so I can't fix it.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoUSB: update documentation for usbmon
Alan Stern [Wed, 4 Jan 2012 21:36:35 +0000 (16:36 -0500)]
USB: update documentation for usbmon

commit d8cae98cddd286e38db1724dda1b0e7b467f9237 upstream.

The documentation for usbmon is out of date; the usbfs "devices" file
now exists in /sys/kernel/debug/usb rather than /proc/bus/usb.  This
patch (as1505) updates the documentation accordingly, and also
mentions that the necessary information can be found by running lsusb.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoDrivers:hv: Fix a bug in vmbus_driver_unregister()
K. Y. Srinivasan [Tue, 27 Dec 2011 21:49:37 +0000 (13:49 -0800)]
Drivers:hv: Fix a bug in vmbus_driver_unregister()

commit 8f257a142fc3868d69de3f996b95d7bdbc509560 upstream.

The function vmbus_exists() was introduced recently to deal with cases where
the vmbus driver failed to initialize and yet other Hyper-V drivers attempted
to register with the vmbus bus driver. This patch introduced a bug where
vmbus_driver_unregister() would fail to unregister the driver. This patch
fixes the problem.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Fuzhou Chen <fuzhouch@microsoft.com>
Cc: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agodrivers: hv: Don't OOPS when you cannot init vmbus
K. Y. Srinivasan [Thu, 1 Dec 2011 17:59:34 +0000 (09:59 -0800)]
drivers: hv: Don't OOPS when you cannot init vmbus

commit cf6a2eacbcb2593b5b91d0817915c4f0464bb534 upstream.

The hv vmbus driver was causing an OOPS since it was trying to register drivers
on top of the bus even if initialization of the bus has failed for some
reason (such as the odd chance someone would run a hv enabled kernel in a
non-hv environment).

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoext3: Don't warn from writepage when readonly inode is spotted after error
Jan Kara [Thu, 22 Dec 2011 15:49:05 +0000 (16:49 +0100)]
ext3: Don't warn from writepage when readonly inode is spotted after error

commit 33c104d415e92a51aaf638dc3d93920cfa601e5c upstream.

WARN_ON_ONCE(IS_RDONLY(inode)) tends to trip when filesystem hits error and is
remounted read-only. This unnecessarily scares users (well, they should be
scared because of filesystem error, but the stack trace distracts them from the
right source of their fear ;-). We could as well just remove the WARN_ON but
it's not hard to fix it to not trip on filesystem with errors and not use more
cycles in the common case so that's what we do.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoreiserfs: Force inode evictions before umount to avoid crash
Jeff Mahoney [Wed, 21 Dec 2011 20:18:43 +0000 (21:18 +0100)]
reiserfs: Force inode evictions before umount to avoid crash

commit a9e36da655e54545c3289b2a0700b5c443de0edd upstream.

This patch fixes a crash in reiserfs_delete_xattrs during umount.

When shrink_dcache_for_umount clears the dcache from
generic_shutdown_super, delayed evictions are forced to disk. If an
evicted inode has extended attributes associated with it, it will
need to walk the xattr tree to locate and remove them.

But since shrink_dcache_for_umount will BUG if it encounters active
dentries, the xattr tree must be released before it's called or it will
crash during every umount.

This patch forces the evictions to occur before generic_shutdown_super
by calling shrink_dcache_sb first. The additional evictions caused
by the removal of each associated xattr file and dir will be automatically
handled as they're added to the LRU list.

CC: reiserfs-devel@vger.kernel.org
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoreiserfs: Fix quota mount option parsing
Jan Kara [Wed, 21 Dec 2011 16:35:34 +0000 (17:35 +0100)]
reiserfs: Fix quota mount option parsing

commit a06d789b424190e9f59da391681f908486db2554 upstream.

When jqfmt mount option is not specified on remount, we mistakenly clear
s_jquota_fmt value stored in superblock. Fix the problem.

CC: reiserfs-devel@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoore: FIX breakage when MISC_FILESYSTEMS is not set
Boaz Harrosh [Tue, 29 Nov 2011 23:35:53 +0000 (15:35 -0800)]
ore: FIX breakage when MISC_FILESYSTEMS is not set

commit 831c2dc5f47c1dc79c32229d75065ada1dcc66e1 upstream.

As Reported by Randy Dunlap

When MISC_FILESYSTEMS is not enabled and NFS4.1 is:

fs/built-in.o: In function `objio_alloc_io_state':
objio_osd.c:(.text+0xcb525): undefined reference to `ore_get_rw_state'
fs/built-in.o: In function `_write_done':
objio_osd.c:(.text+0xcb58d): undefined reference to `ore_check_io'
fs/built-in.o: In function `_read_done':
...

When MISC_FILESYSTEMS, which is more of a GUI thing then anything else,
is not selected. exofs/Kconfig is never examined during Kconfig,
and it can not do it's magic stuff to automatically select everything
needed.

We must split exofs/Kconfig in two. The ore one is always included.
And the exofs one is left in it's old place in the menu.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoore: Must support none-PAGE-aligned IO
Boaz Harrosh [Wed, 28 Dec 2011 17:21:45 +0000 (19:21 +0200)]
ore: Must support none-PAGE-aligned IO

commit 724577ca355795b0a25c93ccbeee927871ca1a77 upstream.

NFS might send us offsets that are not PAGE aligned. So
we must read in the reminder of the first/last pages, in cases
we need it for Parity calculations.

We only add an sg segments to read the partial page. But
we don't mark it as read=true because it is a lock-for-write
page.

TODO: In some cases (IO spans a single unit) we can just
adjust the raid_unit offset/length, but this is left for
later Kernels.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoore: fix BUG_ON, too few sgs when reading
Boaz Harrosh [Wed, 28 Dec 2011 17:14:23 +0000 (19:14 +0200)]
ore: fix BUG_ON, too few sgs when reading

commit 361aba569f55dd159b850489a3538253afbb3973 upstream.

When reading RAID5 files, in rare cases, we calculated too
few sg segments. There should be two extra for the beginning
and end partial units.

Also "too few sg segments" should not be a BUG_ON there is
all the mechanics in place to handle it, as a short read.
So just return -ENOMEM and the rest of the code will gracefully
split the IO.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoore: Fix crash in case of an IO error.
Boaz Harrosh [Tue, 27 Dec 2011 17:23:36 +0000 (19:23 +0200)]
ore: Fix crash in case of an IO error.

commit ffefb8eaa367e8a5c14f779233d9da1fbc23d164 upstream.

The users of ore_check_io() expect the reported device
(In case of error) to be indexed relative to the passed-in
ore_components table, and not the logical dev index.

This causes a crash inside objlayoutdriver in case of
an IO error.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>