10 years agomsm: add MSM8x60 FFA support
Gregory Bean [Mon, 5 Apr 2010 05:29:02 +0000]
msm: add MSM8x60 FFA support

The MSM8X60 FFA contains different components than the MSM8X60 SURF,
and therefore requires a different ARCH type and machine ID.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: MSM8X60 simulator board support
Steve Muckle [Thu, 7 Jan 2010 20:51:10 +0000]
msm: MSM8X60 simulator board support

Board configuration for MSM8X60 simulation.

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: add msm8x60_surf machine
Steve Muckle [Sat, 20 Mar 2010 00:00:08 +0000]
msm: add msm8x60_surf machine

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: physical offset for MSM8X60
Jeff Ohlstein [Thu, 6 May 2010 21:18:06 +0000]
msm: physical offset for MSM8X60

The MSM8x60 has a different physical memory offset than other targets.

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: 8x60: setup correct handlers for private interrupts
Abhijeet Dharmapurikar [Mon, 1 Feb 2010 20:30:28 +0000]
msm: 8x60: setup correct handlers for private interrupts

Private Peripheral interrupts could be edge triggered or level triggered
depending on the platform. Initialize handlers for these in board file.

Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: add build support for msm8x60 target
Jeff Ohlstein [Thu, 12 Aug 2010 20:02:56 +0000]
msm: add build support for msm8x60 target

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: allow uart to be conditionally disabled
Daniel Walker [Wed, 18 Aug 2010 18:00:25 +0000]
msm: allow uart to be conditionally disabled

Some MSM targets don't select the debug UART in this way. For those we
need to disable this selection mechanism.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: dma: add stub functions for dma features not yet present on 8x60
Daniel Walker [Wed, 18 Aug 2010 17:53:05 +0000]
msm: dma: add stub functions for dma features not yet present on 8x60

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: clock: add dummy clock driver
Jeff Ohlstein [Wed, 18 Aug 2010 03:04:19 +0000]
msm: clock: add dummy clock driver

Need to add this until real clock support for 8x60 goes in, or else some
drivers won't compile.

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: 8x60: gic initialization fixup for RUMI
Steve Muckle [Thu, 11 Feb 2010 19:50:40 +0000]
msm: 8x60: gic initialization fixup for RUMI

On RUMI platform STIs are not enabled by default, contrary to the
GIC spec. The bits for STIs in the enable/enable clear registers
are also RW instead of RO. STIs need to be enabled at initialization
time.

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: irq: rename existing entry-macro to entry-macro-vic
Steve Muckle [Wed, 9 Dec 2009 22:03:13 +0000]
msm: irq: rename existing entry-macro to entry-macro-vic

The existing MSM irq entry macro is specific to a VIC
implementation. Renaming this makes room for irq support based on
other interrupt controllers.

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: MSM8X60 RUMI3 board support
Steve Muckle [Thu, 7 Jan 2010 20:43:24 +0000]
msm: MSM8X60 RUMI3 board support

Board configuration for MSM8X60 emulation on RUMI3.

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: timer: support 8x60 timers
Jeff Ohlstein [Tue, 5 Oct 2010 22:23:57 +0000]
msm: timer: support 8x60 timers

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: irqs-8x60: interrupt map
Abhijeet Dharmapurikar [Fri, 22 Jan 2010 02:10:29 +0000]
msm: irqs-8x60: interrupt map

Define the interrupt map in irq-8x60.h

Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: initial irq definitions for MSM8X60
Steve Muckle [Sat, 28 Nov 2009 21:00:13 +0000]
msm: initial irq definitions for MSM8X60

IRQ assignments are different for MSM8X60 than other existing MSMs.

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: io: MSM8X60 io support
Steve Muckle [Wed, 6 Jan 2010 22:55:24 +0000]
msm: io: MSM8X60 io support

MSM8X60 has different IO mappings than previous MSMs.

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: create config option for proc-comm
Steve Muckle [Wed, 21 Apr 2010 23:20:27 +0000]
msm: create config option for proc-comm

Some builds may not support the proc-comm interface with
the baseband processor.

Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: qsd8x50: enable ethernet.
Gregory Bean [Wed, 29 Sep 2010 20:46:45 +0000]
msm: qsd8x50: enable ethernet.

Configure the smc91x ethernet chip on the qsd8x50 SURF.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: gpio: Add gpiomux calls to request and free.
Gregory Bean [Fri, 10 Sep 2010 22:03:37 +0000]
msm: gpio: Add gpiomux calls to request and free.

Add gpiomux get and put calls to msmgpio request and free,
in order to allow gpio lines to be properly reference-counted
and power-managed.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: add gpio driver for single-core SoCs.
Gregory Bean [Fri, 10 Sep 2010 22:03:36 +0000]
msm: add gpio driver for single-core SoCs.

Install a gpiolib driver supporting the on-chip gpios for
single-core MSMs in the 7x00 family, including 7x00A, 7x25, 7x27,
7x30, 8x50, and 8x50a.

As part of the ongoing effort to converge on a common code base,
this driver is based on the Google-Android msmgpio driver, whose
authors include Brian Swetland and Arve Hjønnevåg.

Cc: Arve Hjønnevåg <arve@android.com>
Cc: H Hartley Sweeten <hartleys@visionengravers.com>
Cc: Ryan Mallon <ryan@bluewatersys.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: Featurize gpiomux.
Gregory Bean [Wed, 1 Sep 2010 23:26:12 +0000]
msm: Featurize gpiomux.

Featurize gpiomux so that systems like 7x00 which do not wish to use it
do not have to be saddled with the configuration tables.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: gpio: Remove tlmm routines obsoleted by gpiomux.
Gregory Bean [Sat, 28 Aug 2010 17:05:48 +0000]
msm: gpio: Remove tlmm routines obsoleted by gpiomux.

Now that all supported gpio_tlmm_config-using boards
are using gpiomux, remove the deprecated code.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: convert 7x30 to gpiomux.
Gregory Bean [Sat, 28 Aug 2010 17:05:47 +0000]
msm: convert 7x30 to gpiomux.

Change deprecated gpio_tlmm_config calls to gpiomux calls.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: convert 8x50 to gpiomux.
Gregory Bean [Sat, 28 Aug 2010 17:05:46 +0000]
msm: convert 8x50 to gpiomux.

Change the gpio-init code from deprecated gpio_tlmm_config
to the new gpiomux api.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: documentation: add gpiomux documentation.
Gregory Bean [Sat, 28 Aug 2010 17:05:45 +0000]
msm: documentation: add gpiomux documentation.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agomsm: add gpiomux api for gpio multiplex & configuration.
Gregory Bean [Sat, 28 Aug 2010 17:05:44 +0000]
msm: add gpiomux api for gpio multiplex & configuration.

Add the 'gpiomux' api, which addresses the following shortcomings
of existing tlmm api:

- gpio power-collapse, which is managed by a peripheral processor on
  other targets, must be managed by the application processor on the 8x60.
- The enable/disable flag of the legacy gpio_tlmm_config api
  is not applicable on the 8x60, and causes confusion.
- The gpio 'direction' bits are meaningless for all func_sel
  configurations except for generic-gpio mode (func_sel 0), in which
  case the gpio_direction_* functions should be used.  Having these
  bits in the tlmm api leads to confusion and misuse of the gpiolib
  api, and they have been removed in gpiomux.
- The functional api of the legacy system ran contrary to the typical
  use-case, which is a single massive configuration at boot.  Rather
  than forcing hundreds of 'config' function calls, the new api
  allows data to be configured with a single table.

gpiomux_get and gpiomux_put are meant to be called automatically
when gpio_request and gpio_free are called, giving automatic
gpiomux/tlmm control to those drivers/lines with simple
power profiles - in the simplest cases, an entry in the gpiomux table
and the correct usage of gpiolib is all that is required to get proper
gpio power control.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agoGIC: Dont disable INT in ack callback
Abhijeet Dharmapurikar [Wed, 25 Aug 2010 04:57:33 +0000]
GIC: Dont disable INT in ack callback

Masking in the ack callback fails to work with handle_percpu_irq and handle_edge_irq.
The interrupt stays disabled after the first invocation since percpu and edge irq do
not unmask an interrupt after handling it. For handle_level_irq masking in the ack
is redundant because ack is always called after mask in the mask_ack function.

Masking in the ack function is required only when __do_IRQ was used instead of flow
handlers, but using __do_IRQ has been deprecated.

Remove the masking of interrupt from the ack callback.

Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

10 years agoLinux 2.6.36-rc5
Linus Torvalds [Mon, 20 Sep 2010 23:56:53 +0000]
Linux 2.6.36-rc5

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Linus Torvalds [Mon, 20 Sep 2010 23:45:08 +0000]
Merge git://git./linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  Staging: vt6655: fix buffer overflow
  Revert: "Staging: batman-adv: Adding netfilter-bridge hooks"

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Mon, 20 Sep 2010 23:44:40 +0000]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: musb: MAINTAINERS: Fix my mail address
  USB: serial/mos*: prevent reading uninitialized stack memory
  USB: otg: twl4030: fix phy initialization(v1)
  USB: EHCI: Disable langwell/penwell LPM capability
  usb: musb_debugfs: don't use the struct file private_data field with seq_files

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
Linus Torvalds [Mon, 20 Sep 2010 23:44:24 +0000]
Merge git://git./linux/kernel/git/gregkh/tty-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  serial: mfd: fix bug in serial_hsu_remove()
  serial: amba-pl010: fix set_ldisc

10 years agoStaging: vt6655: fix buffer overflow
Dan Carpenter [Mon, 6 Sep 2010 12:32:30 +0000]
Staging: vt6655: fix buffer overflow

"param->u.wpa_associate.wpa_ie_len" comes from the user.  We should
check it so that the copy_from_user() doesn't overflow the buffer.

Also further down in the function, we assume that if
"param->u.wpa_associate.wpa_ie_len" is set then "abyWPAIE[0]" is
initialized.  To make that work, I changed the test here to say that if
"wpa_ie_len" is set then "wpa_ie" has to be a valid pointer or we return
-EINVAL.

Oddly, we only use the first element of the abyWPAIE[] array.  So I
suspect there may be some other issues in this function.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoRevert: "Staging: batman-adv: Adding netfilter-bridge hooks"
Sven Eckelmann [Sat, 4 Sep 2010 23:58:18 +0000]
Revert: "Staging: batman-adv: Adding netfilter-bridge hooks"

This reverts commit 96d592ed599434d2d5f339a1d282871bc6377d2c.

The netfilter hook seems to be misused and may leak skbs in situations
when NF_HOOK returns NF_STOLEN. It may not filter everything as
expected. Also the ethernet bridge tables are not yet capable to
understand batman-adv packet correctly.

It was only added for testing purposes and can be removed again.

Reported-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoserial: mfd: fix bug in serial_hsu_remove()
Feng Tang [Mon, 6 Sep 2010 12:41:02 +0000]
serial: mfd: fix bug in serial_hsu_remove()

Medfield HSU driver deal with 4 pci devices(3 uart ports + 1 dma controller),
so in pci remove func, we need handle them differently

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoserial: amba-pl010: fix set_ldisc
Mika Westerberg [Sat, 4 Sep 2010 07:23:23 +0000]
serial: amba-pl010: fix set_ldisc

Commit d87d9b7d1 ("tty: serial - fix tty referencing in set_ldisc") changed
set_ldisc to take ldisc number as parameter. This patch fixes AMBA PL010 driver
according the new prototype.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoUSB: musb: MAINTAINERS: Fix my mail address
Felipe Balbi [Thu, 9 Sep 2010 06:04:25 +0000]
USB: musb: MAINTAINERS: Fix my mail address

If we don't, contributors to musb and any USB OMAP
code will be sending mails to an unexistent inbox.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoUSB: serial/mos*: prevent reading uninitialized stack memory
Dan Rosenberg [Wed, 15 Sep 2010 21:44:16 +0000]
USB: serial/mos*: prevent reading uninitialized stack memory

The TIOCGICOUNT device ioctl in both mos7720.c and mos7840.c allows
unprivileged users to read uninitialized stack memory, because the
"reserved" member of the serial_icounter_struct struct declared on the
stack is not altered or zeroed before being copied back to the user.
This patch takes care of it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoUSB: otg: twl4030: fix phy initialization(v1)
Ming Lei [Mon, 6 Sep 2010 15:27:09 +0000]
USB: otg: twl4030: fix phy initialization(v1)

Commit 461c317705eca5cac09a360f488715927fd0a927(into 2.6.36-v3)
is put forward to power down phy if no usb cable is connected,
but does introduce the two issues below:

1), phy is not into work state if usb cable is connected
with PC during poweron, so musb device mode is not usable
in such case, follows the reasons:
-twl4030_phy_resume is not called, so
regulators are not enabled
i2c access are not enabled
usb mode not configurated

2), The kernel warings[1] of regulators 'unbalanced disables'
is caused if poweron without usb cable connected
with PC or b-device.

This patch fixes the two issues above:
-power down phy only if no usb cable is connected with PC
and b-device
-do phy initialization(via __twl4030_phy_resume) if usb cable
is connected with PC(vbus event) or another b-device(ID event) in
twl4030_usb_probe.

This patch also doesn't put VUSB3V1 LDO into active mode in
twl4030_usb_ldo_init until VBUS/ID change detected, so we can
save more power consumption than before.

This patch is verified OK on Beagle board either connected with
usb cable or not when poweron.

[1]. warnings of 'unbalanced disables' of regulators.
[root@OMAP3EVM /]# dmesg
------------[ cut here ]------------
WARNING: at drivers/regulator/core.c:1357 _regulator_disable+0x38/0x128()
unbalanced disables for VUSB1V8
Modules linked in:
Backtrace:
[<c0030c48>] (dump_backtrace+0x0/0x110) from [<c034f5a8>] (dump_stack+0x18/0x1c)
 r7:c78179d8 r6:c01ed6b8 r5:c0410822 r4:0000054d
[<c034f590>] (dump_stack+0x0/0x1c) from [<c0057da8>] (warn_slowpath_common+0x54/0x6c)
[<c0057d54>] (warn_slowpath_common+0x0/0x6c) from [<c0057e64>] (warn_slowpath_fmt+0x38/0x40)
 r9:00000000 r8:00000000 r7:c78e6608 r6:00000000 r5:fffffffb
 r4:c78e6c00
[<c0057e2c>] (warn_slowpath_fmt+0x0/0x40) from [<c01ed6b8>] (_regulator_disable+0x38/0x128)
 r3:c0410e53 r2:c0410ad5
[<c01ed680>] (_regulator_disable+0x0/0x128) from [<c01ed87c>] (regulator_disable+0x24/0x38)
 r7:c78e6608 r6:00000000 r5:c78e6c40 r4:c78e6c00
[<c01ed858>] (regulator_disable+0x0/0x38) from [<c02382dc>] (twl4030_phy_power+0x15c/0x17c)
 r5:c78595c0 r4:00000000
[<c0238180>] (twl4030_phy_power+0x0/0x17c) from [<c023831c>] (twl4030_phy_suspend+0x20/0x2c)
 r6:00000000 r5:c78595c0 r4:c78595c0
[<c02382fc>] (twl4030_phy_suspend+0x0/0x2c) from [<c0238638>] (twl4030_usb_irq+0x11c/0x16c)
 r5:c78595c0 r4:00000040
[<c023851c>] (twl4030_usb_irq+0x0/0x16c) from [<c034ec18>] (twl4030_usb_probe+0x2c4/0x32c)
 r6:00000000 r5:00000000 r4:c78595c0
[<c034e954>] (twl4030_usb_probe+0x0/0x32c) from [<c02152a0>] (platform_drv_probe+0x20/0x24)
 r7:00000000 r6:c047d49c r5:c78e6608 r4:c047d49c
[<c0215280>] (platform_drv_probe+0x0/0x24) from [<c0214244>] (driver_probe_device+0xd0/0x190)
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c02143d4>] (__device_attach+0x44/0x48)
 r7:00000000 r6:c78e6608 r5:c78e6608 r4:c047d49c
[<c0214390>] (__device_attach+0x0/0x48) from [<c0213694>] (bus_for_each_drv+0x50/0x90)
 r5:c0214390 r4:00000000
[<c0213644>] (bus_for_each_drv+0x0/0x90) from [<c0214474>] (device_attach+0x70/0x94)
 r6:c78e663c r5:c78e6608 r4:c78e6608
[<c0214404>] (device_attach+0x0/0x94) from [<c02134fc>] (bus_probe_device+0x2c/0x48)
 r7:00000000 r6:00000002 r5:c78e6608 r4:c78e6600
[<c02134d0>] (bus_probe_device+0x0/0x48) from [<c0211e48>] (device_add+0x340/0x4b4)
[<c0211b08>] (device_add+0x0/0x4b4) from [<c021597c>] (platform_device_add+0x110/0x16c)
[<c021586c>] (platform_device_add+0x0/0x16c) from [<c0220cb0>] (add_numbered_child+0xd8/0x118)
 r7:00000000 r6:c045f15c r5:c78e6600 r4:00000000
[<c0220bd8>] (add_numbered_child+0x0/0x118) from [<c001c618>] (twl_probe+0x3a4/0x72c)
[<c001c274>] (twl_probe+0x0/0x72c) from [<c02601ac>] (i2c_device_probe+0x7c/0xa4)
[<c0260130>] (i2c_device_probe+0x0/0xa4) from [<c0214244>] (driver_probe_device+0xd0/0x190)
 r5:c7856e20 r4:c047c860
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c02143d4>] (__device_attach+0x44/0x48)
 r7:c7856e04 r6:c7856e20 r5:c7856e20 r4:c047c860
[<c0214390>] (__device_attach+0x0/0x48) from [<c0213694>] (bus_for_each_drv+0x50/0x90)
 r5:c0214390 r4:00000000
[<c0213644>] (bus_for_each_drv+0x0/0x90) from [<c0214474>] (device_attach+0x70/0x94)
 r6:c7856e54 r5:c7856e20 r4:c7856e20
[<c0214404>] (device_attach+0x0/0x94) from [<c02134fc>] (bus_probe_device+0x2c/0x48)
 r7:c7856e04 r6:c78fd048 r5:c7856e20 r4:c7856e20
[<c02134d0>] (bus_probe_device+0x0/0x48) from [<c0211e48>] (device_add+0x340/0x4b4)
[<c0211b08>] (device_add+0x0/0x4b4) from [<c0211fd8>] (device_register+0x1c/0x20)
[<c0211fbc>] (device_register+0x0/0x20) from [<c0260aa8>] (i2c_new_device+0xec/0x150)
 r5:c7856e00 r4:c7856e20
[<c02609bc>] (i2c_new_device+0x0/0x150) from [<c0260dc0>] (i2c_register_adapter+0xa0/0x1c4)
 r7:00000000 r6:c78fd078 r5:c78fd048 r4:c781d5c0
[<c0260d20>] (i2c_register_adapter+0x0/0x1c4) from [<c0260f80>] (i2c_add_numbered_adapter+0x9c/0xb4)
 r7:00000a28 r6:c04600a8 r5:c78fd048 r4:00000000
[<c0260ee4>] (i2c_add_numbered_adapter+0x0/0xb4) from [<c034efa4>] (omap_i2c_probe+0x324/0x3e8)
 r5:00000000 r4:c78fd000
[<c034ec80>] (omap_i2c_probe+0x0/0x3e8) from [<c02152a0>] (platform_drv_probe+0x20/0x24)
[<c0215280>] (platform_drv_probe+0x0/0x24) from [<c0214244>] (driver_probe_device+0xd0/0x190)
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c021436c>] (__driver_attach+0x68/0x8c)
 r7:c78b2140 r6:c047e214 r5:c04600e4 r4:c04600b0
[<c0214304>] (__driver_attach+0x0/0x8c) from [<c021399c>] (bus_for_each_dev+0x50/0x84)
 r7:c78b2140 r6:c047e214 r5:c0214304 r4:00000000
[<c021394c>] (bus_for_each_dev+0x0/0x84) from [<c0214068>] (driver_attach+0x20/0x28)
 r6:c047e214 r5:c047e214 r4:c00270d0
[<c0214048>] (driver_attach+0x0/0x28) from [<c0213274>] (bus_add_driver+0xa8/0x228)
[<c02131cc>] (bus_add_driver+0x0/0x228) from [<c02146a4>] (driver_register+0xb0/0x13c)
[<c02145f4>] (driver_register+0x0/0x13c) from [<c0215744>] (platform_driver_register+0x4c/0x60)
 r9:00000000 r8:c001f688 r7:00000013 r6:c005b6fc r5:c00083dc
r4:c00270d0
[<c02156f8>] (platform_driver_register+0x0/0x60) from [<c001f69c>] (omap_i2c_init_driver+0x14/0x1c)
[<c001f688>] (omap_i2c_init_driver+0x0/0x1c) from [<c002c460>] (do_one_initcall+0xd0/0x1a4)
[<c002c390>] (do_one_initcall+0x0/0x1a4) from [<c0008478>] (kernel_init+0x9c/0x154)
[<c00083dc>] (kernel_init+0x0/0x154) from [<c005b6fc>] (do_exit+0x0/0x688)
 r5:c00083dc r4:00000000
---[ end trace 1b75b31a2719ed1d ]---

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Felipe Balbi <me@felipebalbi.com>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoUSB: EHCI: Disable langwell/penwell LPM capability
Alek Du [Mon, 6 Sep 2010 13:50:57 +0000]
USB: EHCI: Disable langwell/penwell LPM capability

We have to do so due to HW limitation.

Signed-off-by: Alek Du <alek.du@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agousb: musb_debugfs: don't use the struct file private_data field with seq_files
Mathias Nyman [Mon, 6 Sep 2010 10:52:01 +0000]
usb: musb_debugfs: don't use the struct file private_data field with seq_files

seq_files use the private_data field of a file struct for storing a seq_file structure,
data should be stored in seq_file's own private field (e.g. file->private_data->private)
Otherwise seq_release() will free the private data when the file is closed.

Signed-off-by: Mathias Nyman <mathias.nyman@nokia.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agofrv: double syscall restarts, syscall restart in sigreturn()
Al Viro [Mon, 20 Sep 2010 14:13:25 +0000]
frv: double syscall restarts, syscall restart in sigreturn()

We need to make sure that only the first do_signal() to be handled on
the way out syscall will bother with syscall restarts; additionally, the
check on the "signal has user handler" path had been wrong - compare
with restart prevention in sigreturn()...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agofrv: handling of restart into restart_syscall is fscked
Al Viro [Mon, 20 Sep 2010 14:13:19 +0000]
frv: handling of restart into restart_syscall is fscked

do_signal() should place the syscall number in gr7, not gr8 when
handling ERESTART_WOULDBLOCK.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agofrv: avoid infinite loop of SIGSEGV delivery
Al Viro [Mon, 20 Sep 2010 14:13:14 +0000]
frv: avoid infinite loop of SIGSEGV delivery

Use force_sigsegv() rather than force_sig(SIGSEGV, ...) as the former
resets the SEGV handler pointer which will kill the process, rather than
leaving it open to an infinite loop if the SEGV handler itself caused a
SEGV signal.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agofrv: fix address verification holes in setup_frame/setup_rt_frame
Al Viro [Mon, 20 Sep 2010 14:13:09 +0000]
frv: fix address verification holes in setup_frame/setup_rt_frame

a) sa_handler might be maliciously set to point to kernel memory;
   blindly dereferencing it in FDPIC case is a Bad Idea(tm).

b) I'm not sure you need that set_fs(USER_DS) there at all, but if you
   do, you'd better do it *before* checking the frame you've decided to
   use with access_ok(), lest sigaltstack() becomes a convenient
   roothole.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agofrv: restart_block.fn needs to be reset on sigreturn
Al Viro [Mon, 20 Sep 2010 14:13:04 +0000]
frv: restart_block.fn needs to be reset on sigreturn

Reset restart_block.fn on executing a sigreturn such that any currently
pending system call restarts will be forced to return -EINTR.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agomm: further fix swapin race condition
Hugh Dickins [Mon, 20 Sep 2010 02:40:22 +0000]
mm: further fix swapin race condition

Commit 4969c1192d15 ("mm: fix swapin race condition") is now agreed to
be incomplete.  There's a race, not very much less likely than the
original race envisaged, in which it is further necessary to check that
the swapcache page's swap has not changed.

Here's the reasoning: cast in terms of reuse_swap_page(), but probably
could be reformulated to rely on try_to_free_swap() instead, or on
swapoff+swapon.

A, faults into do_swap_page(): does page1 = lookup_swap_cache(swap1) and
comes through the lock_page(page1).

B, a racing thread of the same process, faults on the same address: does
page1 = lookup_swap_cache(swap1) and now waits in lock_page(page1), but
for whatever reason is unlucky not to get the lock any time soon.

A carries on through do_swap_page(), a write fault, but cannot reuse the
swap page1 (another reference to swap1).  Unlocks the page1 (but B
doesn't get it yet), does COW in do_wp_page(), page2 now in that pte.

C, perhaps the parent of A+B, comes in and write faults the same swap
page1 into its mm, reuse_swap_page() succeeds this time, swap1 is freed.

kswapd comes in after some time (B still unlucky) and swaps out some
pages from A+B and C: it allocates the original swap1 to page2 in A+B,
and some other swap2 to the original page1 now in C.  But does not
immediately free page1 (actually it couldn't: B holds a reference),
leaving it in swap cache for now.

B at last gets the lock on page1, hooray! Is PageSwapCache(page1)? Yes.
Is pte_same(*page_table, orig_pte)? Yes, because page2 has now been
given the swap1 which page1 used to have.  So B proceeds to insert page1
into A+B's page_table, though its content now belongs to C, quite
different from what A wrote there.

B ought to have checked that page1's swap was still swap1.

Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88...
Linus Torvalds [Sun, 19 Sep 2010 18:09:23 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/mattst88/alpha-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6:
  alpha: deal with multiple simultaneously pending signals
  alpha: fix a 14 years old bug in sigreturn tracing
  alpha: unb0rk sigsuspend() and rt_sigsuspend()
  alpha: belated ERESTART_RESTARTBLOCK race fix
  alpha: Shift perf event pending work earlier in timer interrupt
  alpha: wire up fanotify and prlimit64 syscalls
  alpha: kill big kernel lock
  alpha: fix build breakage in asm/cacheflush.h
  alpha: remove unnecessary cast from void* in assignment.
  alpha: Use static const char * const where possible

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
Linus Torvalds [Sun, 19 Sep 2010 18:06:34 +0000]
Merge git://git./linux/kernel/git/davem/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  ide: Fix ordering of procfs registry.

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Sun, 19 Sep 2010 18:05:50 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  dca: disable dca on IOAT ver.3.0 multiple-IOH platforms
  netpoll: Disable IRQ around RCU dereference in netpoll_rx
  sctp: Do not reset the packet during sctp_packet_config().
  net/llc: storing negative error codes in unsigned short
  MAINTAINERS: move atlx discussions to netdev
  drivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack memory
  drivers/net/eql.c: prevent reading uninitialized stack memory
  drivers/net/usb/hso.c: prevent reading uninitialized memory
  xfrm: dont assume rcu_read_lock in xfrm_output_one()
  r8169: Handle rxfifo errors on 8168 chips
  3c59x: Remove atomic context inside vortex_{set|get}_wol
  tcp: Prevent overzealous packetization by SWS logic.
  net: RPS needs to depend upon USE_GENERIC_SMP_HELPERS
  phylib: fix PAL state machine restart on resume
  net: use rcu_barrier() in rollback_registered_many
  bonding: correctly process non-linear skbs
  ipv4: enable getsockopt() for IP_NODEFRAG
  ipv4: force_igmp_version ignored when a IGMPv3 query received
  ppp: potential NULL dereference in ppp_mp_explode()
  net/llc: make opt unsigned in llc_ui_setsockopt()
  ...

10 years agoMerge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 19 Sep 2010 18:05:05 +0000]
Merge branch 's5p-fixes-for-linus' of git://git./linux/kernel/git/kgene/linux-samsung

* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: S3C64XX: Add IORESOURCE_IRQ_HIGHLEVEL flag to dm9000 on mach-real6410
  ARM: S3C64XX: Fix coding style errors on mach-real6410
  ARM: S3C64XX: Prototype SPI devices
  ARM: S3C64XX: Fix dev-spi build
  ARM: SAMSUNG: Fix on s5p_gpio_[get,set]_drvstr
  ARM: SAMSUNG: Fix on drive strength value
  ARM: S5PV210: Add FIMC clocks
  ARM: S5PV210: Reduce the iodesc length of systimer
  ARM: S5PV210: Update I2C-1 Clock Register Property.
  ARM: S5P: Decrease IO Registers memory region size on FIMC
  ARM: S5P: Fix DMA coherent mask for FIMC

10 years agoCoda: mount hangs because of missed REQ_WRITE rename
Jan Harkes [Sat, 18 Sep 2010 03:26:01 +0000]
Coda: mount hangs because of missed REQ_WRITE rename

Coda's REQ_* defines were renamed to avoid clashes with the block layer
(commit 4aeefdc69f7b: "coda: fixup clash with block layer REQ_*
defines").

However one was missed and response messages are no longer matched with
requests and waiting threads are no longer woken up.  This patch fixes
this.

Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
[ Also fixed up whitespace while at it  -Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoalpha: deal with multiple simultaneously pending signals
Al Viro [Sat, 18 Sep 2010 12:42:27 +0000]
alpha: deal with multiple simultaneously pending signals

Unlike the other targets, alpha sets _one_ sigframe and
buggers off until the next syscall/interrupt, even if
more signals are pending.  It leads to quite a few unpleasant
inconsistencies, starting with SIGSEGV potentially arriving
not where it should and including e.g. mess with sigsuspend();
consider two pending signals blocked until sigsuspend()
unblocks them.  We pick the first one; then, if we are hit
by interrupt while in the handler, we process the second one
as well.  If we are not, and if no syscalls had been made,
we get out of the first handler and leave the second signal
pending; normally sigreturn() would've picked it anyway, but
here it starts with restoring the original mask and voila -
the second signal is blocked again.  On everything else we
get both delivered consistently.

It's actually easy to fix; the only thing to watch out for
is prevention of double syscall restart.  Fortunately, the
idea I've nicked from arm fix by rmk works just fine...

Testcase demonstrating the behaviour in question; on alpha
we get one or both flags set (usually one), on everything
else both are always set.
#include <signal.h>
#include <stdio.h>
int had1, had2;
void f1(int sig) { had1 = 1; }
void f2(int sig) { had2 = 1; }
main()
{
sigset_t set1, set2;
sigemptyset(&set1);
sigemptyset(&set2);
sigaddset(&set2, 1);
sigaddset(&set2, 2);
signal(1, f1);
signal(2, f2);
sigprocmask(SIG_SETMASK, &set2, NULL);
raise(1);
raise(2);
sigsuspend(&set1);
printf("had1:%d had2:%d\n", had1, had2);
}

Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: fix a 14 years old bug in sigreturn tracing
Al Viro [Sat, 18 Sep 2010 12:41:16 +0000]
alpha: fix a 14 years old bug in sigreturn tracing

The way sigreturn() is implemented on alpha breaks PTRACE_SYSCALL,
all way back to 1.3.95 when alpha has grown PTRACE_SYSCALL support.

What happens is direct return to ret_from_syscall, in order to bypass
mangling of a3 (error indicator) and prevent other mutilations of
registers (e.g. by syscall restart).  That's fine, but... the entire
TIF_SYSCALL_TRACE codepath is kept separate on alpha and post-syscall
stopping/notifying the tracer is after the syscall.  And the normal
path we are forcibly switching to doesn't have it.

So we end up with *one* stop in traced sigreturn() vs. two in other
syscalls.  And yes, strace is visibly broken by that; try to strace
the following
#include <signal.h>
#include <stdio.h>
void f(int sig) {}
main()
{
signal(SIGHUP, f);
raise(SIGHUP);
write(1, "eeeek\n", 6);
}
and watch the show.  The
close(1)                                = 405
in the end of strace output is coming from return value of write() (6 ==
__NR_close on alpha) and syscall number of exit_group() (__NR_exit_group ==
405 there).

The fix is fairly simple - the only thing we end up missing is the call
of syscall_trace() and we can tell whether we'd been called from the
SYSCALL_TRACE path by checking ra value.  Since we are setting the
switch_stack up (that's what sys_sigreturn() does), we have the right
environment for calling syscall_trace() - just before we call
undo_switch_stack() and return.  Since undo_switch_stack() will overwrite
s0 anyway, we can use it to store the result of "has it been called from
SYSCALL_TRACE path?" check.  The same thing applies in rt_sigreturn().

Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: unb0rk sigsuspend() and rt_sigsuspend()
Al Viro [Sat, 18 Sep 2010 12:40:07 +0000]
alpha: unb0rk sigsuspend() and rt_sigsuspend()

Old code used to set regs->r0 and regs->r19 to force the right
return value.  Leaving that after switch to ERESTARTNOHAND
was a Bad Idea(tm), since now that screws the restart - if we
hit the case when get_signal_to_deliver() returns 0, we will
step back to syscall insn, with v0 set to EINTR and a3 to 1.
The latter won't matter, since EINTR is 4, aka __NR_write.

Testcase:

#include <signal.h>
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>

main()
{
sigset_t mask;
sigemptyset(&mask);
sigaddset(&mask, SIGCONT);
sigprocmask(SIG_SETMASK, &mask, NULL);
kill(0, SIGCONT);
syscall(__NR_sigsuspend, 1, "b0rken\n", 7);
}

results on alpha in immediate message to stdout...

Fix is obvious; moreover, since we don't need regs anymore, we can
switch to normal prototypes for these guys and lose the wrappers.
Even better, rt_sigsuspend() is identical to generic version in
kernel/signal.c now.

Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: belated ERESTART_RESTARTBLOCK race fix
Al Viro [Sat, 18 Sep 2010 12:38:47 +0000]
alpha: belated ERESTART_RESTARTBLOCK race fix

same thing as had been done on other targets back in 2003 -
move setting ->restart_block.fn into {rt_,}sigreturn().

Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: Shift perf event pending work earlier in timer interrupt
Michael Cree [Sun, 19 Sep 2010 06:05:40 +0000]
alpha: Shift perf event pending work earlier in timer interrupt

Pending work from the performance event subsystem is executed in
the timer interrupt.  This patch shifts the call to
perf_event_do_pending() before the call to update_process_times()
as the latter may call back into the perf event subsystem and it
is prudent to have the pending work executed first.

Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: wire up fanotify and prlimit64 syscalls
Mikael Pettersson [Thu, 16 Sep 2010 18:12:55 +0000]
alpha: wire up fanotify and prlimit64 syscalls

The 2.6.36-rc kernel added three new system calls:
fanotify_init, fanotify_mark, and prlimit64.  This
patch wires them up on Alpha.

Built and booted on an XP900.  Untested beyond that.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: kill big kernel lock
Arnd Bergmann [Tue, 14 Sep 2010 23:34:56 +0000]
alpha: kill big kernel lock

All uses of the BKL on alpha are totally bogus, nothing
is really protected by this. Remove the remaining users
so we don't have to mark alpha as 'depends on BKL'.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: linux-alpha@vger.kernel.org
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: fix build breakage in asm/cacheflush.h
Tejun Heo [Tue, 14 Sep 2010 13:00:22 +0000]
alpha: fix build breakage in asm/cacheflush.h

Alpha SMP flush_icache_user_range() is implemented as an inline
function inside include/asm/cacheflush.h.  It dereferences @current
but doesn't include linux/sched.h and thus causes build failure if
linux/sched.h wasn't included previously.  Fix it by including the
needed header file explicitly.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: remove unnecessary cast from void* in assignment.
matt mooney [Tue, 14 Sep 2010 09:27:39 +0000]
alpha: remove unnecessary cast from void* in assignment.

Acked-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Signed-off-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agoalpha: Use static const char * const where possible
Joe Perches [Tue, 14 Sep 2010 08:23:47 +0000]
alpha: Use static const char * const where possible

Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>

10 years agodca: disable dca on IOAT ver.3.0 multiple-IOH platforms
Sosnowski, Maciej [Thu, 16 Sep 2010 06:02:26 +0000]
dca: disable dca on IOAT ver.3.0 multiple-IOH platforms

Direct Cache Access is not supported on IOAT ver.3.0 multiple-IOH platforms.
This patch blocks registering of dca providers when multiple IOH detected with IOAT ver.3.0.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoARM: S3C64XX: Add IORESOURCE_IRQ_HIGHLEVEL flag to dm9000 on mach-real6410
Darius Augulis [Thu, 9 Sep 2010 12:41:31 +0000]
ARM: S3C64XX: Add IORESOURCE_IRQ_HIGHLEVEL flag to dm9000 on mach-real6410

Add IORESOURCE_IRQ_HIGHLEVEL irq flag to dm9000 driver
platform data in board mach-real6410.

Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
[kgene.kim@samsung.com: minor title fix]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

10 years agoARM: S3C64XX: Fix coding style errors on mach-real6410
Darius Augulis [Thu, 9 Sep 2010 12:40:22 +0000]
ARM: S3C64XX: Fix coding style errors on mach-real6410

Fix errors reported by checkpatch.pl script

Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
[kgene.kim@samsung.com: minor title fix]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

10 years agoARM: S3C64XX: Prototype SPI devices
Mark Brown [Sat, 18 Sep 2010 00:54:38 +0000]
ARM: S3C64XX: Prototype SPI devices

Avoids build warnings due to the undeclared non-statics.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

10 years agonetpoll: Disable IRQ around RCU dereference in netpoll_rx
Herbert Xu [Fri, 17 Sep 2010 23:55:03 +0000]
netpoll: Disable IRQ around RCU dereference in netpoll_rx

We cannot use rcu_dereference_bh safely in netpoll_rx as we may
be called with IRQs disabled.  We could however simply disable
IRQs as that too causes BH to be disabled and is safe in either
case.

Thanks to John Linville for discovering this bug and providing
a patch.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agosctp: Do not reset the packet during sctp_packet_config().
Vlad Yasevich [Wed, 15 Sep 2010 14:00:26 +0000]
sctp: Do not reset the packet during sctp_packet_config().

sctp_packet_config() is called when getting the packet ready
for appending of chunks.  The function should not touch the
current state, since it's possible to ping-pong between two
transports when sending, and that can result packet corruption
followed by skb overlfow crash.

Reported-by: Thomas Dreibholz <dreibh@iem.uni-due.de>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 17 Sep 2010 17:53:28 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: pcm - Fix race with proc files
  ALSA: pcm - Fix unbalanced pm_qos_request
  ALSA: HDA: Enable internal speaker on Dell M101z
  ALSA: patch_nvhdmi.c: Fix supported sample rate list.
  sound: Remove pr_<level> uses of KERN_<level>
  ALSA: hda - Add quirk for Toshiba C650D using a Conexant CX20585
  ALSA: hda_intel: ALSA HD Audio patch for Intel Patsburg DeviceIDs

10 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Fri, 17 Sep 2010 17:25:47 +0000]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (lm95241) Replace rate sysfs attribute with update_interval
  hwmon: (adm1031) Replace update_rate sysfs attribute with update_interval
  hwmon: (w83627ehf) Use proper exit sequence
  hwmon: (emc1403) Remove unnecessary hwmon_device_unregister
  hwmon: (f75375s) Do not overwrite values read from registers
  hwmon: (f75375s) Shift control mode to the correct bit position
  hwmon: New subsystem maintainers
  hwmon: (lis3lv02d) Prevent NULL pointer dereference

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
Linus Torvalds [Fri, 17 Sep 2010 17:23:42 +0000]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: gfs2_logd should be using interruptible waits

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Fri, 17 Sep 2010 17:23:08 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: nosy: fix build when CONFIG_FIREWIRE=N
  firewire: ohci: activate cycle timer register quirk on Ricoh chips

10 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Fri, 17 Sep 2010 17:22:48 +0000]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: fix v1.x metadata update when a disk is missing.
  md: call md_update_sb even for 'external' metadata arrays.

10 years agoarm: fix really nasty sigreturn bug
Al Viro [Fri, 17 Sep 2010 13:34:39 +0000]
arm: fix really nasty sigreturn bug

If a signal hits us outside of a syscall and another gets delivered
when we are in sigreturn (e.g. because it had been in sa_mask for
the first one and got sent to us while we'd been in the first handler),
we have a chance of returning from the second handler to location one
insn prior to where we ought to return.  If r0 happens to contain -513
(-ERESTARTNOINTR), sigreturn will get confused into doing restart
syscall song and dance.

Incredible joy to debug, since it manifests as random, infrequent and
very hard to reproduce double execution of instructions in userland
code...

The fix is simple - mark it "don't bother with restarts" in wrapper,
i.e. set r8 to 0 in sys_sigreturn and sys_rt_sigreturn wrappers,
suppressing the syscall restart handling on return from these guys.
They can't legitimately return a restart-worthy error anyway.

Testcase:
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/time.h>
#include <errno.h>

void f(int n)
{
__asm__ __volatile__(
"ldr r0, [%0]\n"
"b 1f\n"
"b 2f\n"
"1:b .\n"
"2:\n" : : "r"(&n));
}

void handler1(int sig) { }
void handler2(int sig) { raise(1); }
void handler3(int sig) { exit(0); }

main()
{
struct sigaction s = {.sa_handler = handler2};
struct itimerval t1 = { .it_value = {1} };
struct itimerval t2 = { .it_value = {2} };

signal(1, handler1);

sigemptyset(&s.sa_mask);
sigaddset(&s.sa_mask, 1);
sigaction(SIGALRM, &s, NULL);

signal(SIGVTALRM, handler3);

setitimer(ITIMER_REAL, &t1, NULL);
setitimer(ITIMER_VIRTUAL, &t2, NULL);

f(-513); /* -ERESTARTNOINTR */

write(1, "buggered\n", 9);
return 1;
}

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 17 Sep 2010 15:44:20 +0000]
Merge branch 'fix/hda' into for-linus

10 years agohwmon: (lm95241) Replace rate sysfs attribute with update_interval
Guenter Roeck [Fri, 17 Sep 2010 15:24:15 +0000]
hwmon: (lm95241) Replace rate sysfs attribute with update_interval

update_interval is the matching attribute defined in the hwmon sysfs ABI.
Use it.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

10 years agohwmon: (adm1031) Replace update_rate sysfs attribute with update_interval
Guenter Roeck [Fri, 17 Sep 2010 15:24:14 +0000]
hwmon: (adm1031) Replace update_rate sysfs attribute with update_interval

The attribute reflects an interval, not a rate.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

10 years agohwmon: (w83627ehf) Use proper exit sequence
Jonas Jonsson [Fri, 17 Sep 2010 15:24:13 +0000]
hwmon: (w83627ehf) Use proper exit sequence

According to the datasheet for Winbond W83627DHG the proper way to exit
the Extended Function Mode is to write 0xaa to the EFER(0x2e or 0x4e).

Signed-off-by: Jonas Jonsson <jonas@ludd.ltu.se>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

10 years agohwmon: (emc1403) Remove unnecessary hwmon_device_unregister
Yong Wang [Fri, 17 Sep 2010 15:24:12 +0000]
hwmon: (emc1403) Remove unnecessary hwmon_device_unregister

It is unnecessary and wrong to call hwmon_device_unregister in error
handling before hwmon_device_register is called.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>

10 years agohwmon: (f75375s) Do not overwrite values read from registers
Guillem Jover [Fri, 17 Sep 2010 15:24:12 +0000]
hwmon: (f75375s) Do not overwrite values read from registers

All bits in the values read from registers to be used for the next
write were getting overwritten, avoid doing so to not mess with the
current configuration.

Signed-off-by: Guillem Jover <guillem@hadrons.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>

10 years agohwmon: (f75375s) Shift control mode to the correct bit position
Guillem Jover [Fri, 17 Sep 2010 15:24:11 +0000]
hwmon: (f75375s) Shift control mode to the correct bit position

The spec notes that fan0 and fan1 control mode bits are located in bits
7-6 and 5-4 respectively, but the FAN_CTRL_MODE macro was making the
bits shift by 5 instead of by 4.

Signed-off-by: Guillem Jover <guillem@hadrons.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>

10 years agohwmon: New subsystem maintainers
Jean Delvare [Fri, 17 Sep 2010 15:24:11 +0000]
hwmon: New subsystem maintainers

Guenter Roeck volunteered to adopt the hwmon subsystem as long as he
wasn't the only maintainer. As this was also my own condition, we can
add the two of us as co-maintainers of the hwmon subsystem.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>

10 years agohwmon: (lis3lv02d) Prevent NULL pointer dereference
Kuninori Morimoto [Fri, 17 Sep 2010 15:24:10 +0000]
hwmon: (lis3lv02d) Prevent NULL pointer dereference

If CONFIG_PM was selected and lis3lv02d_platform_data was NULL,
the kernel will be panic when halt command run.

Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Sigend-off-by: Jean Delvare <khali@linux-fr.org>

10 years agoGFS2: gfs2_logd should be using interruptible waits
Steven Whitehouse [Thu, 9 Sep 2010 13:45:00 +0000]
GFS2: gfs2_logd should be using interruptible waits

Looks like this crept in, in a recent update.

Reported-by:  Krzysztof Urbaniak <urban@bash.org.pl>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

10 years agonet/llc: storing negative error codes in unsigned short
Dan Carpenter [Thu, 16 Sep 2010 08:12:55 +0000]
net/llc: storing negative error codes in unsigned short

If the alloc_skb() fails then we return 65431 instead of -ENOBUFS
(-105).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoMAINTAINERS: move atlx discussions to netdev
Chris Snook [Fri, 17 Sep 2010 05:00:28 +0000]
MAINTAINERS: move atlx discussions to netdev

The atlx drivers are sufficiently mature that we no longer need a separate
mailing list for them.  Move the discussion to netdev, so we can decommission
atl1-devel, which is now mostly spam.

Signed-off-by: Chris Snook <chris.snook@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agodrivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack memory
Dan Rosenberg [Wed, 15 Sep 2010 11:43:12 +0000]
drivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack memory

Fixed formatting (tabs and line breaks).

The CHELSIO_GET_QSET_NUM device ioctl allows unprivileged users to read
4 bytes of uninitialized stack memory, because the "addr" member of the
ch_reg struct declared on the stack in cxgb_extension_ioctl() is not
altered or zeroed before being copied back to the user.  This patch
takes care of it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agodrivers/net/eql.c: prevent reading uninitialized stack memory
Dan Rosenberg [Wed, 15 Sep 2010 11:43:04 +0000]
drivers/net/eql.c: prevent reading uninitialized stack memory

Fixed formatting (tabs and line breaks).

The EQL_GETMASTRCFG device ioctl allows unprivileged users to read 16
bytes of uninitialized stack memory, because the "master_name" member of
the master_config_t struct declared on the stack in eql_g_master_cfg()
is not altered or zeroed before being copied back to the user.  This
patch takes care of it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agodrivers/net/usb/hso.c: prevent reading uninitialized memory
Dan Rosenberg [Wed, 15 Sep 2010 11:43:28 +0000]
drivers/net/usb/hso.c: prevent reading uninitialized memory

Fixed formatting (tabs and line breaks).

The TIOCGICOUNT device ioctl allows unprivileged users to read
uninitialized stack memory, because the "reserved" member of the
serial_icounter_struct struct declared on the stack in hso_get_count()
is not altered or zeroed before being copied back to the user.  This
patch takes care of it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoxfrm: dont assume rcu_read_lock in xfrm_output_one()
Eric Dumazet [Thu, 16 Sep 2010 12:27:50 +0000]
xfrm: dont assume rcu_read_lock in xfrm_output_one()

ip_local_out() is called with rcu_read_lock() held from ip_queue_xmit()
but not from other call sites.

Reported-and-bisected-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agomd: fix v1.x metadata update when a disk is missing.
NeilBrown [Wed, 8 Sep 2010 06:48:17 +0000]
md: fix v1.x metadata update when a disk is missing.

If an array with 1.x metadata is assembled with the last disk missing,
md doesn't properly record the fact that the disk was missing.

This is unlikely to cause a real problem as the event count will be
different to the count on the missing disk so it won't be included in
the array.  However it could still cause confusion.

So make sure we clear all the relevant slots, not just the early ones.

Signed-off-by: NeilBrown <neilb@suse.de>

10 years agomd: call md_update_sb even for 'external' metadata arrays.
NeilBrown [Tue, 7 Sep 2010 07:02:47 +0000]
md: call md_update_sb even for 'external' metadata arrays.

Now that we depend on md_update_sb to clear variable bits in
mddev->flags (rather than trying not to set them) it is important to
always call md_update_sb when appropriate.

md_check_recovery has this job but explicitly avoids it for ->external
metadata arrays.  This is not longer appropraite, or needed.

However we do want to avoid taking the mddev lock if only
MD_CHANGE_PENDING is set as that is not cleared by md_update_sb for
external-metadata arrays.

Reported-by:  "Kwolek, Adam" <adam.kwolek@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

10 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 17 Sep 2010 02:38:08 +0000]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: hpet: Work around hardware stupidity
  x86, build: Disable -fPIE when compiling with CONFIG_CC_STACKPROTECTOR=y
  x86, cpufeature: Suppress compiler warning with gcc 3.x
  x86, UV: Fix initialization of max_pnode

10 years agofirewire: nosy: fix build when CONFIG_FIREWIRE=N
Stefan Richter [Wed, 15 Sep 2010 11:02:44 +0000]
firewire: nosy: fix build when CONFIG_FIREWIRE=N

drivers/firewire/nosy* is a stand-alone driver that does not depend on
CONFIG_FIREWIRE.  Hence let make descend into drivers/firewire/ also
if that option is off.

The stand-alone driver drivers/ieee1394/init_ohci1394_dma*  will soon be
moved into drivers/firewire/ too and will require the same makefile fix.

Side effect:
As mentioned in https://bugzilla.novell.com/show_bug.cgi?id=586172#c24
this influences the order in which either firewire-ohci or ohci1394 is
going to be bound to an OHCI-1394 controller in case of a modular build
of both drivers if no modprobe blacklist entries are configured.
However, a user of such a setup cannot expect deterministic behavior
anyway.  The Kconfig help and the migration guide at
ieee1394.wiki.kernel.org recommend blacklist entries when a dual
IEEE 1394 stack build is being used.  (The coexistence period of the two
stacks is planned to end soon.)

Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

10 years agoALSA: pcm - Fix race with proc files
Takashi Iwai [Thu, 16 Sep 2010 21:06:50 +0000]
ALSA: pcm - Fix race with proc files

The PCM proc files may open a race against substream close, which can
end up with an Oops.  Use the open_mutex to protect for it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: pcm - Fix unbalanced pm_qos_request
Takashi Iwai [Thu, 16 Sep 2010 20:52:32 +0000]
ALSA: pcm - Fix unbalanced pm_qos_request

The pm_qos_request isn't freed properly when OSS PCM emulation is used
because it skips snd_pcm_hw_free() call but directly releases the
stream.  This resulted in Oops later.

Tested-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:59:11 +0000]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: fix potential double put of TCP session reference

10 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:58:44 +0000]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Optimize ticket spinlocks in fsys_rt_sigprocmask

10 years agoMerge branch '2.6.36-fixes' of git://github.com/schandinat/linux-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:56:48 +0000]
Merge branch '2.6.36-fixes' of git://github.com/schandinat/linux-2.6

* '2.6.36-fixes' of git://github.com/schandinat/linux-2.6:
  drivers/video/via/ioctl.c: prevent reading uninitialized stack memory

10 years agoMerge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:56:12 +0000]
Merge branch 'urgent' of git://git./linux/kernel/git/brodo/pcmcia-2.6

* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
  pcmcia pcnet_cs: try setting io_lines to 16 if card setup fails
  pcmcia: per-device, not per-socket debug messages
  pcmcia serial_cs.c: fix multifunction card handling

10 years agoMerge git://git.infradead.org/users/cbou/battery-2.6.36
Linus Torvalds [Thu, 16 Sep 2010 19:55:44 +0000]
Merge git://git.infradead.org/users/cbou/battery-2.6.36

* git://git.infradead.org/users/cbou/battery-2.6.36:
  apm_power: Add missing break statement
  intel_pmic_battery: Fix battery charging status on mrst