GitHub/MotorolaMobilityLLC/kernel-slsi.git
13 years agoUSB: ehci-ath79: fix a NULL pointer dereference
Gabor Juhos [Mon, 20 Jun 2011 15:22:36 +0000 (17:22 +0200)]
USB: ehci-ath79: fix a NULL pointer dereference

Loading the ehci-hcd module on the ath79 platform causes
a NULL pointer dereference:

CPU 0 Unable to handle kernel paging request at virtual address 00000000, epc == c0252928, ra == c00de968
Oops[#1]:
Cpu 0
$ 0   : 00000000 00000070 00000001 00000000
$ 4   : 802cf870 0000117e ffffffff 8019c7bc
$ 8   : 0000000a 00000002 00000001 fffffffb
$12   : 8026ef20 0000000f ffffff80 802dad3c
$16   : 8077a2d4 8077a200 c00f3484 8019ed84
$20   : c00f0000 00000003 000000a0 80262c2c
$24   : 00000002 80079da0
$28   : 80788000 80789c80 80262b14 c00de968
Hi    : 00000000
Lo    : b61f0000
epc   : c0252928 __mod_vermagic5+0xc260/0xc7e8 [ehci_hcd]
    Not tainted
ra    : c00de968 usb_add_hcd+0x2a4/0x858 [usbcore]
Status: 1000c003    KERNEL EXL IE
Cause : 00800008
BadVA : 00000000
PrId  : 00019374 (MIPS 24Kc)
Modules linked in: ehci_hcd(+) pppoe pppox ipt_REJECT xt_TCPMSS ipt_LOG
xt_comment xt_multiport xt_mac xt_limit iptable_mangle iptable_filte
r ip_tables xt_tcpudp x_tables ppp_async ppp_generic slhc ath mac80211
usbcore nls_base input_polldev crc_ccitt cfg80211 compat input_core a
rc4 aes_generic crypto_algapi
Process insmod (pid: 379, threadinfo=80788000, task=80ca2180,
tls=77fe52d0)
Stack : c0253184 80c57d80 80789cac 8077a200 00000001 8019edc0 807fa800 8077a200
        8077a290 c00f3484 8019ed84 c00f0000 00000003 000000a0 80262c2c c00de968
        802d0000 800878cc c0253228 c02528e4 c0253184 80c57d80 80bf6800 80ca2180
        8007b75c 00000000 8077a200 802cf830 802d0000 00000003 fffffff4 00000015
        00000348 00000124 800b189c c024bb4c c0255000 801a27e8 c0253228 c02528e4
        ...
Call Trace:
[<c0252928>] __mod_vermagic5+0xc260/0xc7e8 [ehci_hcd]

It is caused by:

  commit c430131a02d677aa708f56342c1565edfdacb3c0
  Author: Jan Andersson <jan@gaisler.com>
  Date:   Tue May 3 20:11:57 2011 +0200

      USB: EHCI: Support controllers with big endian capability regs

      The two first HC capability registers (CAPLENGTH and HCIVERSION)
      are defined as one 8-bit and one 16-bit register. Most HC
      implementations have selected to treat these registers as part
      of a 32-bit register, giving the same layout for both big and
      small endian systems.

      This patch adds a new quirk, big_endian_capbase, to support
      controllers with big endian register interfaces that treat
      HCIVERSION and CAPLENGTH as individual registers.

Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The reading of the HC capability register has been moved by that
commit to a place where the ehci->caps field is not initialized
yet. This patch moves the reading of the register back to the
original place.

Acked-by: Jan Andersson <jan@gaisler.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoUSB: Add new FT232H chip to drivers/usb/serial/ftdi_sio.c
Uwe Bonnes [Fri, 17 Jun 2011 15:30:23 +0000 (17:30 +0200)]
USB: Add new FT232H chip to drivers/usb/serial/ftdi_sio.c

appended patch adds support for the new FTDI FT232H chip. This chip is a
single channel version of the dual FT2232H/quad FT4232H, coming with it's
own default PID 0x6014 (FT2232H uses the same PID 0x6010 like FT2232C,
FT4232H has also it's own PID).

The patch was checked on an UM232H module and a terminal program with TX/RX
shorted to that typing in the terminal reproduced the characters.

Signed-off-by: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agousb/isp1760: Fix bug preventing the unlinking of control urbs
Arvid Brodin [Fri, 17 Jun 2011 16:45:37 +0000 (18:45 +0200)]
usb/isp1760: Fix bug preventing the unlinking of control urbs

Both control and bulk transfers use isp1760 slots of type ATL, but the
driver unlink code for ATL slots only acts on urbs describing a bulk
transfer, letting the code for INT slots take care of the unlink instead,
which often ended up removing the interrupt transfer for root hub events
instead. That's not good, and gets fixed by this patch.

Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoMerge branch 'for-usb-linus' of git+ssh://master.kernel.org/pub/scm/linux/kernel...
Greg Kroah-Hartman [Mon, 27 Jun 2011 20:35:23 +0000 (13:35 -0700)]
Merge branch 'for-usb-linus' of git+ssh:///linux/kernel/git/sarah/xhci into usb-linus

* 'for-usb-linus' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
  USB: Fix up URB error codes to reflect implementation.
  xhci: Always set urb->status to zero for isoc endpoints.
  xhci: Add reset on resume quirk for asrock p67 host
  xHCI 1.0: Incompatible Device Error
  xHCI 1.0: Force Stopped Event(FSE)
  xhci: Don't warn about zeroed bMaxBurst descriptor field.
  USB: Free bandwidth when usb_disable_device is called.
  xhci: Reject double add of active endpoints.

13 years agoUSB: Fix up URB error codes to reflect implementation.
Sarah Sharp [Thu, 16 Jun 2011 20:06:04 +0000 (13:06 -0700)]
USB: Fix up URB error codes to reflect implementation.

Documentation/usb/error-codes.txt mentions that urb->status can be set to
-EXDEV, if the isochronous transfer was not fully completed.  However, in
practice, EHCI, UHCI, and OHCI all only set -EXDEV in the individual frame
status, never in the URB status.  Those host controller actually always
pass in a zero status to usb_hcd_giveback_urb, and rely on the core to set
the appropriate status value.

The xHCI driver ran into issues with the uvcvideo driver when it tried to
set -EXDEV in urb->status, because the driver refused to submit URBs, and
the userspace camera application's video froze.

Clean up the documentation to reflect the actual implementation.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
13 years agoxhci: Always set urb->status to zero for isoc endpoints.
Sarah Sharp [Thu, 16 Jun 2011 02:57:46 +0000 (19:57 -0700)]
xhci: Always set urb->status to zero for isoc endpoints.

When the xHCI driver encounters a Missed Service Interval event for an
isochronous endpoint ring, it means the host controller skipped over
one or more isochronous TDs.  For TD that is skipped, skip_isoc_td() is
called.  This sets the frame descriptor status to -EXDEV, and also sets
the value stored in the int pointed to by status to -EXDEV.

If the isochronous TD happens to be the last TD in an URB,
handle_tx_event() will use the status variable to give back the URB to
the USB core.  That means drivers will see urb->status as -EXDEV.

It turns out that EHCI, UHCI, and OHCI always set urb->status to zero for
an isochronous urb, regardless of what the frame status is.  See
itd_complete() in ehci-sched.c:

                } else {
                        /* URB was too late */
                        desc->status = -EXDEV;
                }
        }

        /* handle completion now? */
        if (likely ((urb_index + 1) != urb->number_of_packets))
                goto done;

        /* ASSERT: it's really the last itd for this urb
        list_for_each_entry (itd, &stream->td_list, itd_list)
                BUG_ON (itd->urb == urb);
         */

        /* give urb back to the driver; completion often (re)submits */
        dev = urb->dev;
        ehci_urb_done(ehci, urb, 0);

ehci_urb_done() completes the URB with the status of the third argument, which
is always zero in this case.

It turns out that many USB webcam drivers, such as uvcvideo, cannot
handle urb->status set to a non-zero value.  They will not resubmit
their isochronous URBs in that case, and userspace will see a frozen
video.

Change the xHCI driver to be consistent with the EHCI and UHCI driver,
and always set urb->status to 0 for isochronous URBs.

This patch should be backported to kernels as old as 2.6.36

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: "Xu, Andiry" <Andiry.Xu@amd.com>
Cc: stable@kernel.org
13 years agoxhci: Add reset on resume quirk for asrock p67 host
Maarten Lankhorst [Wed, 15 Jun 2011 21:47:21 +0000 (23:47 +0200)]
xhci: Add reset on resume quirk for asrock p67 host

The asrock p67 xhci controller completely dies on resume, add a
quirk for this, to bring the host back online after a suspend.

This should be backported to stable kernels as old as 2.6.37.

Signed-off-by: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
13 years agoxHCI 1.0: Incompatible Device Error
Alex He [Wed, 8 Jun 2011 10:34:06 +0000 (18:34 +0800)]
xHCI 1.0: Incompatible Device Error

It is one new TRB Completion Code for the xHCI spec v1.0.
Asserted if the xHC detects a problem with a device that does not allow it to
be successfully accessed, e.g. due to a device compliance or compatibility
problem. This error may be returned by any command or transfer, and is fatal
as far as the Slot is concerned. Return -EPROTO by urb->status or frame->status
of ISOC for transfer case. And return -ENODEV for configure endpoint command,
evaluate context command and address device command if there is an incompatible
Device Error. The error codes will be sent back to the USB core to decide how
to do. It's unnecessary for other commands because after the three commands run
successfully means that the device has been accepted.

Signed-off-by: Alex He <alex.he@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
13 years agoUSB: don't let errors prevent system sleep
Alan Stern [Wed, 15 Jun 2011 20:27:43 +0000 (16:27 -0400)]
USB: don't let errors prevent system sleep

This patch (as1464) implements the recommended policy that most errors
during suspend or hibernation should not prevent the system from going
to sleep.  In particular, failure to suspend a USB driver or a USB
device should not prevent the sleep from succeeding:

Failure to suspend a device won't matter, because the device will
automatically go into suspend mode when the USB bus stops carrying
packets.  (This might be less true for USB-3.0 devices, but let's not
worry about them now.)

Failure of a driver to suspend might lead to trouble later on when the
system wakes up, but it isn't sufficient reason to prevent the system
from going to sleep.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoUSB: don't let the hub driver prevent system sleep
Alan Stern [Wed, 15 Jun 2011 20:29:16 +0000 (16:29 -0400)]
USB: don't let the hub driver prevent system sleep

This patch (as1465) continues implementation of the policy that errors
during suspend or hibernation should not prevent the system from going
to sleep.

In this case, failure to turn on the Suspend feature for a hub port
shouldn't be reported as an error.  There are situations where this
does actually occur (such as when the device plugged into that port
was disconnected in the recent past), and it turns out to be harmless.
There's no reason for it to prevent a system sleep.

Also, don't allow the hub driver to fail a system suspend if the
downstream ports aren't all suspended.  This is also harmless (and
should never happen, given the change mentioned above); printing a
warning message in the kernel log is all we really need to do.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoUSB: change maintainership of ohci-hcd and ehci-hcd
Alan Stern [Wed, 15 Jun 2011 20:32:46 +0000 (16:32 -0400)]
USB: change maintainership of ohci-hcd and ehci-hcd

Following the loss of David Brownell, I volunteer to maintain the
ohci-hcd and ehci-hcd drivers.  This patch (as1472) makes it official.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoxHCI 1.0: Force Stopped Event(FSE)
Alex He [Fri, 3 Jun 2011 07:58:25 +0000 (15:58 +0800)]
xHCI 1.0: Force Stopped Event(FSE)

FSE shall occur on the TD natural boundary. The software ep_ring dequeue pointer
exceed the hardware ep_ring dequeue pointer in these cases of Table-3. As a
result, the event_trb(pointed by hardware dequeue pointer) of the FSE can't be
found in the current TD(pointed by software dequeue pointer). What should we do
is to figured out the FSE case and skip over it.

Signed-off-by: Alex He <alex.he@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
13 years agoxhci: Don't warn about zeroed bMaxBurst descriptor field.
Sarah Sharp [Mon, 6 Jun 2011 07:53:47 +0000 (00:53 -0700)]
xhci: Don't warn about zeroed bMaxBurst descriptor field.

The USB 3.0 specification says that the bMaxBurst field in the SuperSpeed
Endpoint Companion descriptor is supposed to indicate how many packets a
SS device can handle before it needs to wait for an explicit handshake
from the host controller.  A zero value means the device can only handle
one packet before it needs a handshake.  Remove a warning in the xHCI
driver that implies this is an invalid value.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
13 years agoUSB: Free bandwidth when usb_disable_device is called.
Sarah Sharp [Mon, 6 Jun 2011 06:22:22 +0000 (23:22 -0700)]
USB: Free bandwidth when usb_disable_device is called.

Tanya ran into an issue when trying to switch a UAS device from the BOT
configuration to the UAS configuration via the bConfigurationValue sysfs
file.  Before installing the UAS configuration, set_bConfigurationValue()
calls usb_disable_device().  That function is supposed to remove all host
controller resources associated with that device, but it leaves some state
in the xHCI host controller.

Commit 0791971ba8fbc44e4f476079f856335ed45e6324
usb: allow drivers to use allocated bandwidth until unbound
added a call to usb_disable_device() in usb_set_configuration(), before
the xHCI bandwidth functions were invoked.  That commit fixed a bug, but
also introduced a bug that is triggered when a configured device is
switched to a new configuration.

usb_disable_device() goes through all the motions of unbinding the drivers
attached to active interfaces and removing the USB core structures
associated with those interfaces, but it doesn't actually remove the
endpoints from the internal xHCI host controller bandwidth structures.

When usb_disable_device() calls usb_disable_endpoint() with reset_hardware
set to true, the entries in udev->ep_out and udev->ep_in will be set to
NULL.  Usually, when the USB core installs a new configuration,
usb_hcd_alloc_bandwidth() will drop all non-NULL endpoints in udev->ep_out
and udev->ep_in before adding any new endpoints.  However, when the new
UAS configuration was added, all those entries were null, so none of the
old endpoints in the BOT configuration were dropped.

The xHCI driver blindly added the UAS configuration endpoints, and some of
the endpoint addresses overlapped with the old BOT configuration
endpoints.  This caused the xHCI host to reject the Configure Endpoint
command.  Now that the xHCI driver code is cleaned up to reject a
double-add of active endpoints, we need to fix the USB core to properly
drop old endpoints in usb_disable_device().

If the host controller driver needs bandwidth checking support, make
usb_disable_device() call usb_disable_endpoint() with
reset_hardware set to false, drop the endpoints from the xHCI host
controller, and then call usb_disable_endpoint() again with
reset_hardware set to true.

The first call to usb_disable_endpoint() will cancel any pending URBs and
wait on them to be freed in usb_hcd_disable_endpoint(), but will keep the
pointers in udev->ep_out and udev->ep in intact.  Then
usb_hcd_alloc_bandwidth() will use those pointers to know which endpoints
to drop.

The final call to usb_disable_endpoint() will do two things:

1. It will call usb_hcd_disable_endpoint() again, which should be harmless
since the ep->urb_list should be empty after the first call to
usb_disable_endpoint() returns.

2. It will set the entries in udev->ep_out and udev->ep in to NULL, and call
usb_hcd_disable_endpoint().  That call will have no effect, since the xHCI
driver doesn't set the endpoint_disable function pointer.

Note that usb_disable_device() will now need to be called with
hcd->bandwidth_mutex held.

This should be backported to kernels as old as 2.6.32.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Tanya Brokhman <tlinder@codeaurora.org>
Cc: ablay@codeaurora.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: stable@kernel.org
13 years agoxhci: Reject double add of active endpoints.
Sarah Sharp [Mon, 6 Jun 2011 06:10:04 +0000 (23:10 -0700)]
xhci: Reject double add of active endpoints.

While trying to switch a UAS device from the BOT configuration to the UAS
configuration via the bConfigurationValue file, Tanya ran into an issue in
the USB core.  usb_disable_device() sets entries in udev->ep_out and
udev->ep_out to NULL, but doesn't call into the xHCI bandwidth management
functions to remove the BOT configuration endpoints from the xHCI host's
internal structures.

The USB core would then attempt to add endpoints for the UAS
configuration, and some of the endpoints had the same address as endpoints
in the BOT configuration.  The xHCI driver blindly added the endpoints
again, but the xHCI host controller rejected the Configure Endpoint
command because active endpoints were added without being dropped.

Make the xHCI driver reject calls to xhci_add_endpoint() that attempt to
add active endpoints without first calling xhci_drop_endpoint().

This should be backported to kernels as old as 2.6.31.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Tanya Brokhman <tlinder@codeaurora.org>
Cc: stable@kernel.org
13 years agoUSB: TI 3410/5052 USB Serial Driver: Fix mem leak when firmware is too big.
Jesper Juhl [Mon, 13 Jun 2011 20:50:41 +0000 (22:50 +0200)]
USB: TI 3410/5052 USB Serial Driver: Fix mem leak when firmware is too big.

If the size of the firmware exceeds TI_FIRMWARE_BUF_SIZE we'll leak 'fw_p'
by failing to call release_firmware().
This patch fixes the leak.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoMerge branch 'for-greg' of master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb...
Greg Kroah-Hartman [Tue, 14 Jun 2011 21:17:59 +0000 (14:17 -0700)]
Merge branch 'for-greg' of /linux/kernel/git/balbi/usb into usb-linus

* 'for-greg' of master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb:
  usb: musb: gadget: clear TXPKTRDY flag when set FLUSHFIFO
  usb: musb: host: compare status for negative error values

13 years agoLinux 3.0-rc3
Linus Torvalds [Mon, 13 Jun 2011 22:29:59 +0000 (15:29 -0700)]
Linux 3.0-rc3

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Mon, 13 Jun 2011 20:00:53 +0000 (13:00 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/penberg/slab-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  SLAB: Record actual last user of freed objects.
  slub: always align cpu_slab to honor cmpxchg_double requirement

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Mon, 13 Jun 2011 18:21:50 +0000 (11:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: unwind canceled flock state
  ceph: fix ENOENT logic in striped_read
  ceph: fix short sync reads from the OSD
  ceph: fix sync vs canceled write
  ceph: use ihold when we already have an inode ref

13 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 13 Jun 2011 17:47:04 +0000 (10:47 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rtc: Staticize non-exported __rtc_set_alarm()
  rtc: Fix ioctl error path return
  ptp: Fix some locking bugs in ptp_read()
  ptp: Return -EFAULT on copy_to_user() errors

13 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 13 Jun 2011 17:45:49 +0000 (10:45 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ftrace: Revert 8ab2b7efd ftrace: Remove unnecessary disabling of irqs
  kprobes/trace: Fix kprobe selftest for gcc 4.6
  ftrace: Fix possible undefined return code
  oprofile, dcookies: Fix possible circular locking dependency
  oprofile: Fix locking dependency in sync_start()
  oprofile: Free potentially owned tasks in case of errors
  oprofile, x86: Add comments to IBS LVT offset initialization

13 years agoMerge branches 'x86-urgent-for-linus' and 'irq-urgent-for-linus' of git://git.kernel...
Linus Torvalds [Mon, 13 Jun 2011 17:45:10 +0000 (10:45 -0700)]
Merge branches 'x86-urgent-for-linus' and 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: devicetree: Add missing early_init_dt_setup_initrd_arch stub
  x86: cpu-hotplug: Prevent softirq wakeup on wrong CPU

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq: Prevent potential NULL dereference in irq_set_irq_wake()

13 years agoMerge branch 'spi/merge' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Mon, 13 Jun 2011 17:33:31 +0000 (10:33 -0700)]
Merge branch 'spi/merge' of git://git.secretlab.ca/git/linux-2.6

* 'spi/merge' of git://git.secretlab.ca/git/linux-2.6:
  spi-pl022: Add missing return value update

13 years agoMerge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 13 Jun 2011 17:32:53 +0000 (10:32 -0700)]
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: S3C2410: remove the now empty mach-s3c2410/irq.c
  ARM: S3C24XX: Move s3c24xx_irq_syscore_ops to plat-s3c24xx/irq.c
  ARM: S3C24xx: Fix missing struct for s3c2410_dma_chan
  ARM: SAMSUNG: Remove unused onenand plat functions
  ARM: EXYNOS4: Remove compiler warning on exynos4_pwm4_resume
  ARM: S5P: Fix compilation error for exynos4_defconfig
  ARM: S5P: Should be S3C_VA_USB_HSPHY instead of S5P_VA_XX
  ARM: S5P64X0: Fix SPI platform device name
  ARM: S5PV210: Fix possible null pointer dereference

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke...
Linus Torvalds [Mon, 13 Jun 2011 17:32:24 +0000 (10:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: fix problem in setting checkpoint interval
  nilfs2: fix missing block address termination in btree node shrinking
  nilfs2: fix incorrect block address termination in node concatenation

13 years agospi-pl022: Add missing return value update
Virupax Sadashivpetimath [Mon, 13 Jun 2011 10:53:46 +0000 (16:23 +0530)]
spi-pl022: Add missing return value update

Return error on out of range cpsdvsr value.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...
Linus Torvalds [Sun, 12 Jun 2011 18:06:36 +0000 (11:06 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/btrfs-unstable

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: use join_transaction in btrfs_evict_inode()
  Btrfs - use %pU to print fsid
  Btrfs: fix extent state leak on failed nodatasum reads
  btrfs: fix unlocked access of delalloc_inodes
  Btrfs: avoid stack bloat in btrfs_ioctl_fs_info()
  btrfs: remove 64bit alignment padding to allow extent_buffer to fit into one fewer cacheline
  Btrfs: clear current->journal_info on async transaction commit
  Btrfs: make sure to recheck for bitmaps in clusters
  btrfs: remove unneeded includes from scrub.c
  btrfs: reinitialize scrub workers
  btrfs: scrub: errors in tree enumeration
  Btrfs: don't map extent buffer if path->skip_locking is set
  Btrfs: unlock the trans lock properly
  Btrfs: don't map extent buffer if path->skip_locking is set
  Btrfs: fix duplicate checking logic
  Btrfs: fix the allocator loop logic
  Btrfs: fix bitmap regression
  Btrfs: don't commit the transaction if we dont have enough pinned bytes
  Btrfs: noinline the cluster searching functions
  Btrfs: cache bitmaps when searching for a cluster

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sun, 12 Jun 2011 18:04:25 +0000 (11:04 -0700)]
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: hda: Fix inaudible internal speakers on CyberpowerPC Gamer Xplorer N57001 laptop
  ALSA: Use %pV for snd_printk()
  ALSA: hda - Fix initialization of hp pins with master_mute in Realtek
  ALSA: hda - Fix invalid unsol tag for some alc262 model quirks
  ASoC: SAMSUNG: Fix the incorrect referencing of I2SCON register
  ASoC: snd_soc_new_{mixer,mux,pga} make sure to use right DAPM context
  ASoC: fsl: fix initialization of DMA buffers
  ASoC: WM8804 does not support sample rates below 32kHz
  ASoC: Fix WM8962 headphone volume update for use of advanced caches
  ASoC: Blackfin: bf5xx-ad1836: Fix codec device name
  ALSA: hda: Fix quirk for Dell Inspiron 910
  ASoC: AD1836: Fix setting the PCM format
  ASoC: Check for NULL register bank in snd_soc_get_cache_val()
  ASoC: Add missing break in WM8915 FLL source selection
  ASoC: Only update SYSCLK_ENA when pausing WM8915 SYSCLK
  ASoC: atmel_ssc: Don't try to free ssc if request failed

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
Linus Torvalds [Sun, 12 Jun 2011 18:04:11 +0000 (11:04 -0700)]
Merge git://git./linux/kernel/git/davem/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  ide-cd: signedness warning fix again

13 years agoMerge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Sun, 12 Jun 2011 18:03:29 +0000 (11:03 -0700)]
Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6

* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6:
  gpio/basic_mmio: add missing include of spinlock_types.h
  gpio/nomadik: fix sleepmode for elder Nomadik

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Sun, 12 Jun 2011 18:03:08 +0000 (11:03 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (55 commits)
  ISDN, hfcsusb: Don't leak in hfcsusb_ph_info()
  netpoll: call dev_put() on error in netpoll_setup()
  net: ep93xx_eth: fix DMA API violations
  net: ep93xx_eth: drop GFP_DMA from call to dma_alloc_coherent()
  net: ep93xx_eth: allocate buffers using kmalloc()
  net: ep93xx_eth: pass struct device to DMA API functions
  ep93xx: set DMA masks for the ep93xx_eth
  vlan: Fix the ingress VLAN_FLAG_REORDER_HDR check
  dl2k: EEPROM CRC calculation wrong endianess on bigendian machine
  NET: am79c961: fix assembler warnings
  NET: am79c961: ensure multicast filter is correctly set at open
  NET: am79c961: ensure asm() statements are marked volatile
  ethtool.h: fix typos
  ep93xx_eth: Update MAINTAINERS
  ipv4: Fix packet size calculation for raw IPsec packets in __ip_append_data
  netpoll: prevent netpoll setup on slave devices
  net: pmtu_expires fixes
  gianfar:localized filer table
  iwlegacy: fix channel switch locking
  mac80211: fix IBSS teardown race
  ...

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Sun, 12 Jun 2011 02:56:25 +0000 (19:56 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  AppArmor: Fix sleep in invalid context from task_setrlimit

13 years agoISDN, hfcsusb: Don't leak in hfcsusb_ph_info()
Jesper Juhl [Sat, 11 Jun 2011 06:36:42 +0000 (06:36 +0000)]
ISDN, hfcsusb: Don't leak in hfcsusb_ph_info()

We leak the memory allocated to 'phi' when the variable goes out of scope
in hfcsusb_ph_info().

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonetpoll: call dev_put() on error in netpoll_setup()
Dan Carpenter [Sun, 12 Jun 2011 01:55:22 +0000 (18:55 -0700)]
netpoll: call dev_put() on error in netpoll_setup()

There is a dev_put(ndev) missing on an error path.  This was
introduced in 0c1ad04aecb "netpoll: prevent netpoll setup on slave
devices".

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: ep93xx_eth: fix DMA API violations
Mika Westerberg [Sat, 11 Jun 2011 08:39:58 +0000 (08:39 +0000)]
net: ep93xx_eth: fix DMA API violations

Russell King said:
>
> So, to summarize what its doing:
>
> 1. It allocates buffers for rx and tx.
> 2. It maps them with dma_map_single().
>       This transfers ownership of the buffer to the DMA device.
> 3. In ep93xx_xmit,
> 3a. It copies the data into the buffer with skb_copy_and_csum_dev()
>       This violates the DMA buffer ownership rules - the CPU should
>       not be writing to this buffer while it is (in principle) owned
>       by the DMA device.
> 3b. It then calls dma_sync_single_for_cpu() for the buffer.
>       This transfers ownership of the buffer to the CPU, which surely
>       is the wrong direction.
> 4. In ep93xx_rx,
> 4a. It calls dma_sync_single_for_cpu() for the buffer.
>       This at least transfers the DMA buffer ownership to the CPU
>       before the CPU reads the buffer
> 4b. It then uses skb_copy_to_linear_data() to copy the data out.
>       At no point does it transfer ownership back to the DMA device.
> 5. When the driver is removed, it dma_unmap_single()'s the buffer.
>       This transfers ownership of the buffer to the CPU.
> 6. It frees the buffer.
>
> While it may work on ep93xx, it's not respecting the DMA API rules,
> and with DMA debugging enabled it will probably encounter quite a few
> warnings.

This patch fixes these violations.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Tested-by: Petr Stetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: ep93xx_eth: drop GFP_DMA from call to dma_alloc_coherent()
Mika Westerberg [Sat, 11 Jun 2011 08:39:57 +0000 (08:39 +0000)]
net: ep93xx_eth: drop GFP_DMA from call to dma_alloc_coherent()

Commit a197b59ae6e8 (mm: fail GFP_DMA allocations when ZONE_DMA is not
configured) made page allocator to return NULL if GFP_DMA is set but
CONFIG_ZONE_DMA is disabled.

This causes ep93xx_eth to fail:

 WARNING: at mm/page_alloc.c:2251 __alloc_pages_nodemask+0x11c/0x638()
 Modules linked in:
 [<c0035498>] (unwind_backtrace+0x0/0xf4) from [<c0043da4>] (warn_slowpath_common+0x48/0x60)
 [<c0043da4>] (warn_slowpath_common+0x48/0x60) from [<c0043dd8>] (warn_slowpath_null+0x1c/0x24)
 [<c0043dd8>] (warn_slowpath_null+0x1c/0x24) from [<c0083b6c>] (__alloc_pages_nodemask+0x11c/0x638)
 [<c0083b6c>] (__alloc_pages_nodemask+0x11c/0x638) from [<c00366fc>] (__dma_alloc+0x8c/0x3ec)
 [<c00366fc>] (__dma_alloc+0x8c/0x3ec) from [<c0036adc>] (dma_alloc_coherent+0x54/0x60)
 [<c0036adc>] (dma_alloc_coherent+0x54/0x60) from [<c0227808>] (ep93xx_open+0x20/0x864)
 [<c0227808>] (ep93xx_open+0x20/0x864) from [<c0283144>] (__dev_open+0xb8/0x108)
 [<c0283144>] (__dev_open+0xb8/0x108) from [<c0280528>] (__dev_change_flags+0x70/0x128)
 [<c0280528>] (__dev_change_flags+0x70/0x128) from [<c0283054>] (dev_change_flags+0x10/0x48)
 [<c0283054>] (dev_change_flags+0x10/0x48) from [<c001a720>] (ip_auto_config+0x190/0xf68)
 [<c001a720>] (ip_auto_config+0x190/0xf68) from [<c00233b0>] (do_one_initcall+0x34/0x18c)
 [<c00233b0>] (do_one_initcall+0x34/0x18c) from [<c0008400>] (kernel_init+0x94/0x134)
 [<c0008400>] (kernel_init+0x94/0x134) from [<c0030858>] (kernel_thread_exit+0x0/0x8)

Since there is no restrictions for DMA on ep93xx, we can fix this by just
removing the GFP_DMA flag from the call.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Tested-by: Petr Stetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: ep93xx_eth: allocate buffers using kmalloc()
Mika Westerberg [Sat, 11 Jun 2011 08:39:56 +0000 (08:39 +0000)]
net: ep93xx_eth: allocate buffers using kmalloc()

We can use simply kmalloc() to allocate the buffers. This also simplifies the
code and allows us to perform DMA sync operations more easily.

Memory is allocated with only GFP_KERNEL since there are no DMA allocation
restrictions on this platform.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Tested-by: Petr Stetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: ep93xx_eth: pass struct device to DMA API functions
Mika Westerberg [Sat, 11 Jun 2011 08:39:55 +0000 (08:39 +0000)]
net: ep93xx_eth: pass struct device to DMA API functions

We shouldn't use NULL for any DMA API functions, unless we are dealing with
ISA or EISA device. So pass correct struct dev pointer to these functions.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoep93xx: set DMA masks for the ep93xx_eth
Mika Westerberg [Sat, 11 Jun 2011 08:39:54 +0000 (08:39 +0000)]
ep93xx: set DMA masks for the ep93xx_eth

Since the driver uses the DMA API, we should pass it valid DMA masks.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Tested-by: Petr Stetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agovlan: Fix the ingress VLAN_FLAG_REORDER_HDR check
Jiri Pirko [Fri, 10 Jun 2011 06:56:58 +0000 (06:56 +0000)]
vlan: Fix the ingress VLAN_FLAG_REORDER_HDR check

Testing of VLAN_FLAG_REORDER_HDR does not belong in vlan_untag
but rather in vlan_do_receive.  Otherwise the vlan header
will not be properly put on the packet in the case of
vlan header accelleration.

As we remove the check from vlan_check_reorder_header
rename it vlan_reorder_header to keep the naming clean.

Fix up the skb->pkt_type early so we don't look at the packet
after adding the vlan tag, which guarantees we don't goof
and look at the wrong field.

Use a simple if statement instead of a complicated switch
statement to decided that we need to increment rx_stats
for a multicast packet.

Hopefully at somepoint we will just declare the case where
VLAN_FLAG_REORDER_HDR is cleared as unsupported and remove
the code.  Until then this keeps it working correctly.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Acked-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodl2k: EEPROM CRC calculation wrong endianess on bigendian machine
Daniel Hellstrom [Fri, 10 Jun 2011 04:55:16 +0000 (04:55 +0000)]
dl2k: EEPROM CRC calculation wrong endianess on bigendian machine

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoNET: am79c961: fix assembler warnings
Russell King - ARM Linux [Fri, 10 Jun 2011 00:52:35 +0000 (00:52 +0000)]
NET: am79c961: fix assembler warnings

Fix:
/tmp/ccvoZ6h8.s: Assembler messages:
/tmp/ccvoZ6h8.s:284: Warning: register range not in ascending order
/tmp/ccvoZ6h8.s:881: Warning: register range not in ascending order
/tmp/ccvoZ6h8.s:1087: Warning: register range not in ascending order

by ensuring that we have temporary variables placed into specific
registers.  Reorder the code a bit to allow the resulting assembly
to be slightly more optimal.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoNET: am79c961: ensure multicast filter is correctly set at open
Russell King - ARM Linux [Fri, 10 Jun 2011 00:52:14 +0000 (00:52 +0000)]
NET: am79c961: ensure multicast filter is correctly set at open

We were clearing out the multicast filter whenever the interface was
upped, and not setting the mode bits correctly.  This can cause
problems if there are any multicast addresses already set at this
point, or if ALLMULTI was set.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoNET: am79c961: ensure asm() statements are marked volatile
Russell King - ARM Linux [Fri, 10 Jun 2011 00:51:54 +0000 (00:51 +0000)]
NET: am79c961: ensure asm() statements are marked volatile

Without this the compiler can (and does) optimize register reads away
from within loops, and other such optimizations.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoide-cd: signedness warning fix again
Connor Hansen [Sat, 11 Jun 2011 22:06:48 +0000 (15:06 -0700)]
ide-cd: signedness warning fix again

One of the legit warnings 'make W=3 drivers/ide/ide-cd.c'
generates is:
drivers/ide/ide-cd.c: In function ide_cd_do_request
drivers/ide/ide-cd.c:828:2: warning: conversion to int from \
unsigned int may change the sign of the result
drivers/ide/ide-cd.c:833:2: warning: conversion to int from \
unsigned int may change the sign of the result

nsectors is declared int, should be unsigned int.

blk_rq_sectors() returns unsigned int, and ide_complete_rq
expects unsigned int as well.  Fixes both warnings.

Signed-off-by: Connor Hansen <cmdkhh@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agolinux/seqlock.h should #include asm/processor.h for cpu_relax()
David Howells [Sat, 11 Jun 2011 11:29:58 +0000 (12:29 +0100)]
linux/seqlock.h should #include asm/processor.h for cpu_relax()

It uses cpu_relax(), and so needs <asm/processor.h>

Without this patch, I see:

   CC      arch/mn10300/kernel/asm-offsets.s
  In file included from include/linux/time.h:8,
                   from include/linux/timex.h:56,
                   from include/linux/sched.h:57,
                   from arch/mn10300/kernel/asm-offsets.c:7:
  include/linux/seqlock.h: In function 'read_seqbegin':
  include/linux/seqlock.h:91: error: implicit declaration of function 'cpu_relax'

whilst building asb2364_defconfig on MN10300.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoBtrfs: use join_transaction in btrfs_evict_inode()
Li Zefan [Wed, 8 Jun 2011 03:56:44 +0000 (03:56 +0000)]
Btrfs: use join_transaction in btrfs_evict_inode()

The WARN_ON() in start_transaction() was triggered while balancing.

The cause is btrfs_relocate_chunk() started a transaction and
then called iput() on the inode that stores free space cache,
and iput() called btrfs_start_transaction() again.

Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Reviewed-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agonilfs2: fix problem in setting checkpoint interval
Ryusuke Konishi [Thu, 9 Jun 2011 15:33:06 +0000 (00:33 +0900)]
nilfs2: fix problem in setting checkpoint interval

Checkpoint generation interval of nilfs goes wrong after user has
changed the interval parameter with nilfs-tune tool.

 segctord starting. Construction interval = 5 seconds,
 CP frequency < 30 seconds
 segctord starting. Construction interval = 0 seconds,
 CP frequency < 30 seconds

This turned out to be caused by a trivial bug in initialization code
of log writer.  This will fix it.

Reported-by: Andrea Gelmini <andrea.gelmini@gmail.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
13 years agonilfs2: fix missing block address termination in btree node shrinking
Ryusuke Konishi [Wed, 25 May 2011 14:00:27 +0000 (23:00 +0900)]
nilfs2: fix missing block address termination in btree node shrinking

nilfs_btree_delete function does not terminate part of virtual block
addresses when shrinking the last remaining child node into the root
node.  The missing address termination causes that dead btree node
blocks persist and chip away free disk space.

This fixes the leak bug on the btree node deletion.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
13 years agonilfs2: fix incorrect block address termination in node concatenation
Ryusuke Konishi [Wed, 25 May 2011 14:00:27 +0000 (23:00 +0900)]
nilfs2: fix incorrect block address termination in node concatenation

nilfs_btree_delete function wrongly terminates virtual block address
of the btree node held by its parent at index 0.  When concatenating
the index-0 node with its right sibling node, nilfs_btree_delete
terminates the block address of index-0 node instead of the right
sibling node which should be deleted.

This bug not only wears disk space in the long run, but also causes
file system corruption.  This will fix it.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
13 years agoBtrfs - use %pU to print fsid
Ilya Dryomov [Wed, 9 Feb 2011 14:05:31 +0000 (16:05 +0200)]
Btrfs - use %pU to print fsid

Get rid of FIXME comment.  Uuids from dmesg are now the same as uuids
given by btrfs-progs.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: fix extent state leak on failed nodatasum reads
Jan Schmidt [Wed, 4 May 2011 14:18:50 +0000 (16:18 +0200)]
Btrfs: fix extent state leak on failed nodatasum reads

When encountering an EIO while reading from a nodatasum extent, we
insert an error record into the inode's failure tree.
btrfs_readpage_end_io_hook returns early for nodatasum inodes. We'd
better clear the failure tree in that case, otherwise the kernel
complains about

BUG extent_state: Objects remaining on kmem_cache_close()

on rmmod.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoMerge branch 'for-chris' of git://git.kernel.org/pub/scm/linux/kernel/git/arne/btrfs...
Chris Mason [Fri, 10 Jun 2011 22:58:08 +0000 (18:58 -0400)]
Merge branch 'for-chris' of git://git./linux/kernel/git/arne/btrfs-unstable-arne into for-linus

13 years agobtrfs: fix unlocked access of delalloc_inodes
David Sterba [Thu, 9 Jun 2011 10:02:51 +0000 (10:02 +0000)]
btrfs: fix unlocked access of delalloc_inodes

list_splice_init will make delalloc_inodes empty, but without a spinlock
around, this may produce corrupted list head, accessed in many placess,
The race window is very tight and nobody seems to have hit it so far.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: avoid stack bloat in btrfs_ioctl_fs_info()
Li Zefan [Wed, 8 Jun 2011 08:27:56 +0000 (08:27 +0000)]
Btrfs: avoid stack bloat in btrfs_ioctl_fs_info()

The size of struct btrfs_ioctl_fs_info_args is as big as 1KB, so
don't declare the variable on stack.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Reviewed-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agobtrfs: remove 64bit alignment padding to allow extent_buffer to fit into one fewer...
richard kennedy [Tue, 7 Jun 2011 10:46:32 +0000 (10:46 +0000)]
btrfs: remove 64bit alignment padding to allow extent_buffer to fit into one fewer cacheline

Reorder extent_buffer to remove 8 bytes of alignment padding on 64 bit
builds. This shrinks its size to 128 bytes allowing it to fit into one
fewer cache lines and allows more objects per slab in its kmem_cache.

slabinfo extent_buffer reports :-

 before:-
    Sizes (bytes)     Slabs
    ----------------------------------
    Object :     136  Total  :     123
    SlabObj:     136  Full   :     121
    SlabSiz:    4096  Partial:       0
    Loss   :       0  CpuSlab:       2
    Align  :       8  Objects:      30

 after :-
    Object :     128  Total  :       4
    SlabObj:     128  Full   :       2
    SlabSiz:    4096  Partial:       0
    Loss   :       0  CpuSlab:       2
    Align  :       8  Objects:      32

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: clear current->journal_info on async transaction commit
Sage Weil [Fri, 10 Jun 2011 18:43:13 +0000 (18:43 +0000)]
Btrfs: clear current->journal_info on async transaction commit

Normally current->jouranl_info is cleared by commit_transaction.  For an
async snap or subvol creation, though, it runs in a work queue.  Clear
it in btrfs_commit_transaction_async() to avoid leaking a non-NULL
journal_info when we return to userspace.  When the actual commit runs in
the other thread it won't care that it's current->journal_info is already
NULL.

Signed-off-by: Sage Weil <sage@newdream.net>
Tested-by: Jim Schutt <jaschut@sandia.gov>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: make sure to recheck for bitmaps in clusters
Chris Mason [Fri, 10 Jun 2011 20:36:57 +0000 (16:36 -0400)]
Btrfs: make sure to recheck for bitmaps in clusters

Josef recently changed the free extent cache to look in
the block group cluster for any bitmaps before trying to
add a new bitmap for the same offset.  This avoids BUG_ON()s due
covering duplicate ranges.

But it didn't go quite far enough.  A given free range might span
between one or more bitmaps or free space entries.  The code has
looping to cover this, but it doesn't check for clustered bitmaps
every time.

This shuffles our gotos to check for a bitmap in the cluster
for every new bitmap entry we try to add.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 10 Jun 2011 15:49:34 +0000 (17:49 +0200)]
Merge branch 'fix/asoc' into for-linus

13 years agogpio/basic_mmio: add missing include of spinlock_types.h
Jamie Iles [Fri, 10 Jun 2011 12:44:49 +0000 (13:44 +0100)]
gpio/basic_mmio: add missing include of spinlock_types.h

include/linux/basic_mmio_gpio.h uses a spinlock_t without including any
of the spinlock headers resulting in this compiler warning.

include/linux/basic_mmio_gpio.h:51:2: error: expected specifier-qualifier-list before 'spinlock_t'

Explicitly include linux/spinlock_types.h to fix it.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agoALSA: hda: Fix inaudible internal speakers on CyberpowerPC Gamer Xplorer N57001 laptop
Daniel T Chen [Fri, 10 Jun 2011 14:14:01 +0000 (10:14 -0400)]
ALSA: hda: Fix inaudible internal speakers on CyberpowerPC Gamer Xplorer N57001 laptop

BugLink: https://launchpad.net/bugs/761171
The original reporter needs the model=auto quirk for his internal
speakers to be audible in the latest daily snapshot, so add an entry in
the quirk table for his PCI SSID.

A trivially different version of this patch using the model=asus quirk
should be applied to the 2.6.38 and 2.6.39 stable kernels. We don't use
the asus quirk in 3.0-rc2, because 3.0-rc2's autoparser is much
improved.

Reported-and-tested-by: tomdeering7
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoALSA: Use %pV for snd_printk()
Takashi Iwai [Fri, 10 Jun 2011 13:32:31 +0000 (15:32 +0200)]
ALSA: Use %pV for snd_printk()

Clean up snd_printk() helper using the %pV prefix for recursive printks.
This also automagically fixes an Oops with RO/NX-enabled modules.

Tested-by: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoALSA: hda - Fix initialization of hp pins with master_mute in Realtek
Takashi Iwai [Fri, 10 Jun 2011 13:28:15 +0000 (15:28 +0200)]
ALSA: hda - Fix initialization of hp pins with master_mute in Realtek

Some Reatlek model quirks use master_mute bool switch for controlling
the master-mute of outputs.  For these cases, the initialization of HP
pins/amps were forgotten during the transition to the common automute
helper function in 3.0 development time, and resulted in the muted HP
output as default.

This patch fixes the issue by adjusting the HP output explicitly with
master_mute switch.

Tested-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoALSA: hda - Fix invalid unsol tag for some alc262 model quirks
Takashi Iwai [Fri, 10 Jun 2011 07:31:54 +0000 (09:31 +0200)]
ALSA: hda - Fix invalid unsol tag for some alc262 model quirks

The tag number was forgotten to be fixed after cleaning up the model
quirks for ALC262 fujitsu and lenovo-3000 models.

Tested-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agobtrfs: remove unneeded includes from scrub.c
Arne Jansen [Fri, 10 Jun 2011 11:04:58 +0000 (13:04 +0200)]
btrfs: remove unneeded includes from scrub.c

Signed-off-by: Arne Jansen <sensille@gmx.net>
13 years agobtrfs: reinitialize scrub workers
Arne Jansen [Fri, 10 Jun 2011 10:07:07 +0000 (12:07 +0200)]
btrfs: reinitialize scrub workers

Scrub starts the workers each time a scrub starts and stops them after it
finished. This patch adds an initialization for the workers before each
start, otherwise the workers behave strangely.

Signed-off-by: Arne Jansen <sensille@gmx.net>
13 years agobtrfs: scrub: errors in tree enumeration
Arne Jansen [Fri, 3 Jun 2011 08:09:26 +0000 (10:09 +0200)]
btrfs: scrub: errors in tree enumeration

due to the semantics of btrfs_search_slot the path can point to an
invalid slot when ret > 0. This condition went unnoticed, which in
turn could have led to an incomplete scrubbing.

Signed-off-by: Arne Jansen <sensille@gmx.net>
13 years agoBtrfs: don't map extent buffer if path->skip_locking is set
Josef Bacik [Wed, 8 Jun 2011 18:45:50 +0000 (14:45 -0400)]
Btrfs: don't map extent buffer if path->skip_locking is set

Arne's scrub stuff exposed a problem with mapping the extent buffer in
reada_for_search.  He searches the commit root with multiple threads and with
skip_locking set, so we can race and overwrite node->map_token since node isn't
locked.  So fix this so that we only map the extent buffer if we don't already
have a map_token and skip_locking isn't set.  Without this patch scrub would
panic almost immediately, with the patch it doesn't panic anymore.  Thanks,

Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Josef Bacik <josef@redhat.com>
13 years agoASoC: SAMSUNG: Fix the incorrect referencing of I2SCON register
Sangbeom Kim [Fri, 10 Jun 2011 01:36:54 +0000 (10:36 +0900)]
ASoC: SAMSUNG: Fix the incorrect referencing of I2SCON register

If DMA active status should be checked, I2SCON register should be referenced.
In this patch, Fix the incorrect referencing of I2SCON register.

Reported-by : Lakkyung Jung <lakkyung.jung@samsung.com>
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
13 years agogenirq: Prevent potential NULL dereference in irq_set_irq_wake()
Jesper Juhl [Thu, 9 Jun 2011 21:14:58 +0000 (23:14 +0200)]
genirq: Prevent potential NULL dereference in irq_set_irq_wake()

In kernel/irq/manage.c::irq_set_irq_wake() we call
irq_get_desc_buslock() which may return NULL, but the code
dereferences the result unconditionally.

irq_set_irq_wake() has lots of callers - I checked a few and I couldn't
find anything that guarantees that they won't call it with some input that
will cause irq_get_desc_buslock() to return NULL, so I think it's a good
thing to test and -EINVAL was the most sane error code in this situation
that I could think of.

Not all callers test the return value of irq_set_irq_wake(), but those
that do take != 0 to mean error as far as I can see, so they should be
fine. I guess those that don't test actually should, but that's a
different issue.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Link: http://lkml.kernel.org/r/alpine.LNX.2.00.1106092300360.17868@swampdragon.chaosbits.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
13 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Fri, 10 Jun 2011 03:14:21 +0000 (20:14 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: fix unexpectedly frozen port after ata_eh_reset()

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Thu, 9 Jun 2011 23:33:01 +0000 (16:33 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc32, leon: bugfix in LEON SMP interrupt init
  sparc32, sun4m: bugfix in SMP IPI traphandler
  sparc: Remove unnecessary semicolons
  Add support for allocating irqs for bootbus devices
  Do not skip interrupt sources in sun4d interrupt handler and acknowledge interrupts correctly
  Restructure sun4d_build_device_irq so that timer interrupts can be allocated
  sparc: PCIC_PCI needs SPARC32 dependency
  sparc: Do not select GENERIC_HARDIRQS_NO_DEPRECATED
  sparc32,leon: add GRPCI2 PCI Host driver
  sparc32,leon: added LEON-common low-level PCI routines
  sparc32: added CONFIG_PCIC_PCI Kconfig setting

13 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuil...
Linus Torvalds [Thu, 9 Jun 2011 23:27:42 +0000 (16:27 -0700)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild-2.6

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  perf: Use make kernelversion instead of parsing the Makefile
  kbuild: Hack for depmod not handling X.Y versions
  kbuild: Move depmod call to a separate script
  kbuild: Fix <linux/version.h> for empty SUBLEVEL or PATCHLEVEL
  kbuild: Fix KERNELVERSION for empty SUBLEVEL or PATCHLEVEL
  kbuild: silence Nothing to be done for 'all' message

13 years agosparc32, leon: bugfix in LEON SMP interrupt init
Daniel Hellstrom [Thu, 9 Jun 2011 02:54:09 +0000 (02:54 +0000)]
sparc32, leon: bugfix in LEON SMP interrupt init

During converting per-cpu ticker to genirq layer some
IRQ initialization code was removed by commit
2cf9530420e446bb61f665d02afeb81070106900 ("sparc32,leon:
per-cpu ticker use genirq per-cpu handler").

This patch reintroduces the code at the same place it was
removed from. IRQ12 - IRQ14 will crash on LEON SMP without
this patch because it will run the SUN4M IRQ trap handler.

Reported-by: Jan Andersson <jan@gaisler.com>
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosparc32, sun4m: bugfix in SMP IPI traphandler
Daniel Hellstrom [Thu, 9 Jun 2011 02:54:08 +0000 (02:54 +0000)]
sparc32, sun4m: bugfix in SMP IPI traphandler

Three new IPIs were introduced by commit
ecbc42b70acbc6327adefe9635db93fcf62bf59d ("sparc32, sun4m:
Implemented SMP IPIs support for SUN4M machines"), the
old handler was already prepared for IPIs but handled only
IRQ14 and IRQ13, this patch adds support for the new IPI at
IRQ12.

The IPI trap handler looks at the mask rather than the
pending IRQ/IPI, this bug may have masked the problem
above, introduced by the same commit.

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoethtool.h: fix typos
Yegor Yefremov [Thu, 9 Jun 2011 22:05:48 +0000 (15:05 -0700)]
ethtool.h: fix typos

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoep93xx_eth: Update MAINTAINERS
H Hartley Sweeten [Thu, 9 Jun 2011 22:00:21 +0000 (15:00 -0700)]
ep93xx_eth: Update MAINTAINERS

Lennert stated that he has been short on time lately. Since I'm maintaining
the ep93xx core stuff, I'm willing to also take over maintaining the Ethernet
driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Lennert Buytenhek <kernel@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoipv4: Fix packet size calculation for raw IPsec packets in __ip_append_data
Steffen Klassert [Sun, 5 Jun 2011 20:48:47 +0000 (20:48 +0000)]
ipv4: Fix packet size calculation for raw IPsec packets in __ip_append_data

We assume that transhdrlen is positive on the first fragment
which is wrong for raw packets. So we don't add exthdrlen to the
packet size for raw packets. This leads to a reallocation on IPsec
because we have not enough headroom on the skb to place the IPsec
headers. This patch fixes this by adding exthdrlen to the packet
size whenever the send queue of the socket is empty. This issue was
introduced with git commit 1470ddf7 (inet: Remove explicit write
references to sk/inet in ip_append_data)

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoperf: Use make kernelversion instead of parsing the Makefile
Michal Marek [Mon, 30 May 2011 12:12:09 +0000 (14:12 +0200)]
perf: Use make kernelversion instead of parsing the Makefile

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
13 years agokbuild: Hack for depmod not handling X.Y versions
Michal Marek [Thu, 9 Jun 2011 14:35:41 +0000 (16:35 +0200)]
kbuild: Hack for depmod not handling X.Y versions

depmod from module-init-tools < 3.13 and the busybox depmod check if the
kernel release starts with <num>.<num>.<num>. To support these versions,
we create a symlink with two numbers prepended.

Signed-off-by: Michal Marek <mmarek@suse.cz>
13 years agokbuild: Move depmod call to a separate script
Michal Marek [Thu, 9 Jun 2011 13:35:22 +0000 (15:35 +0200)]
kbuild: Move depmod call to a separate script

Do not bloat the Makefile with multiline shell statements. No
user-visible change intended.

Signed-off-by: Michal Marek <mmarek@suse.cz>
13 years agokbuild: Fix <linux/version.h> for empty SUBLEVEL or PATCHLEVEL
Michal Marek [Mon, 30 May 2011 11:37:20 +0000 (13:37 +0200)]
kbuild: Fix <linux/version.h> for empty SUBLEVEL or PATCHLEVEL

expr treats all numbers as decimals, so prepending a zero is safe. Note
that the KERNEL_VERSION() macro still takes three arguments, 3.0 has to be
written as KERNEL_VERSION(3,0,0).

Signed-off-by: Michal Marek <mmarek@suse.cz>
13 years agokbuild: Fix KERNELVERSION for empty SUBLEVEL or PATCHLEVEL
Michal Marek [Mon, 30 May 2011 11:36:07 +0000 (13:36 +0200)]
kbuild: Fix KERNELVERSION for empty SUBLEVEL or PATCHLEVEL

Omit the second dot for releases without SUBLEVEL. If PATCHLEVEL is also
empty, only display VERSION.

Signed-off-by: Michal Marek <mmarek@suse.cz>
13 years agogpio/nomadik: fix sleepmode for elder Nomadik
Linus Walleij [Thu, 9 Jun 2011 09:08:47 +0000 (11:08 +0200)]
gpio/nomadik: fix sleepmode for elder Nomadik

The mach-nomadik machine did not compile properly due to bad
ux500-specific functions being called. Introduce new state
variables to fix this up.

Reported-by: Axel Lin <axel.lin@gmail.com>
Cc: Alessandro Rubini <rubini@unipv.it>
Cc: Prafulla Wadaskar <prafulla.wadaskar@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Thu, 9 Jun 2011 20:50:25 +0000 (13:50 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Force page alignment for initrd reserved memory
  dtc/powerpc: remove obsolete .gitignore entries
  powerpc/85xx: fix race bug of calling request_irq after enable elbc interrupts
  powerpc/book3e: Fix CPU feature handling on e5500 in 32-bit mode
  powerpc/fsl_rio: Fix compile error when CONFIG_FSL_RIO not set

13 years agoMerge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Thu, 9 Jun 2011 20:09:07 +0000 (13:09 -0700)]
Merge branch 'staging-linus' of git://git./linux/kernel/git/gregkh/staging-2.6

* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  staging: iio: max517: Fix iio_info changes
  Staging: mei: fix debug code
  Staging: cx23885: fix include of altera.h
  staging: iio: error case memory leak fix
  staging: ath6kl: Fix a kernel panic during suspend/resume
  staging: gma500: get control from firmware framebuffer if conflicts
  staging: gma500: Skip bogus LVDS VBT mode and check for LVDS before adding backlight
  staging: usbip: bugfix prevent driver unbind
  staging: iio: industrialio-trigger: set iio_poll_func private_data
  staging: rts_pstor: use bitwise operator instead of logical one
  staging: fix ath6kl build when CFG80211 is not enabled
  staging: brcm80211: fix for 'multiple definition of wl_msg_level' build err
  staging: fix olpc_dcon build, needs BACKLIGHT_CLASS_DEVICE
  Staging: remove STAGING_EXCLUDE_BUILD option
  Staging: altera: move .h file to proper place

13 years agoMerge branch 'stable/xen-swiotlb.bugfix' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 9 Jun 2011 19:52:44 +0000 (12:52 -0700)]
Merge branch 'stable/xen-swiotlb.bugfix' of git://git./linux/kernel/git/konrad/swiotlb-2.6

* 'stable/xen-swiotlb.bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb-2.6:
  swiotlb: Export swioltb_nr_tbl and utilize it as appropiate.

13 years agoMerge branch 'stable/broadcom.ibft-bugfixes' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Thu, 9 Jun 2011 19:52:30 +0000 (12:52 -0700)]
Merge branch 'stable/broadcom.ibft-bugfixes' of git://git./linux/kernel/git/konrad/ibft-2.6

* 'stable/broadcom.ibft-bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft-2.6:
  iscsi_ibft: iscsi_ibft_find unused variable i

13 years agoMerge branch 'unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux...
Linus Torvalds [Thu, 9 Jun 2011 19:52:05 +0000 (12:52 -0700)]
Merge branch 'unicore32' of git://git./linux/kernel/git/epip/linux-2.6-unicore32

* 'unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32:
  unicore32: using generic-y format for one line asm-generic files
  unicore32: change PERCPU to PERCPU_SECTION
  unicore32: add KBUILD_DEFCONFIG with unicore32_defconfig (old debug_defconfig)
  unicore32: change zImage physical address, though it's PIC codes
  unicore32: move rtc-puv3.c to drivers/rtc directory

13 years agovsprintf: Update %pI6c to not compress a single 0
Joe Perches [Thu, 9 Jun 2011 18:23:37 +0000 (11:23 -0700)]
vsprintf: Update %pI6c to not compress a single 0

RFC 5952 (http://tools.ietf.org/html/rfc5952) mandates that 2 or more
consecutive 0's are required before using :: compression.

Update ip6_compressed_string to match the RFC and update the http
reference as well.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoexec: delay address limit change until point of no return
Mathias Krause [Thu, 9 Jun 2011 18:05:18 +0000 (20:05 +0200)]
exec: delay address limit change until point of no return

Unconditionally changing the address limit to USER_DS and not restoring
it to its old value in the error path is wrong because it prevents us
using kernel memory on repeated calls to this function.  This, in fact,
breaks the fallback of hard coded paths to the init program from being
ever successful if the first candidate fails to load.

With this patch applied switching to USER_DS is delayed until the point
of no return is reached which makes it possible to have a multi-arch
rootfs with one arch specific init binary for each of the (hard coded)
probed paths.

Since the address limit is already set to USER_DS when start_thread()
will be invoked, this redundancy can be safely removed.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Thu, 9 Jun 2011 18:23:30 +0000 (14:23 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6 into for-davem

13 years agostaging: iio: max517: Fix iio_info changes
Roland Stigge [Thu, 9 Jun 2011 14:21:00 +0000 (16:21 +0200)]
staging: iio: max517: Fix iio_info changes

struct iio_info introduced a bug where the second channel of a MAX518 can't be
used. This commit fixes the typo (using max518 instead of the max517 struct).

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: mei: fix debug code
Dan Carpenter [Thu, 9 Jun 2011 07:18:23 +0000 (10:18 +0300)]
Staging: mei: fix debug code

! has higher precedence than !=.  H_RDY is 8 and since neither 0 nor
1 are equal to 8 the original condition was always true.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoBtrfs: unlock the trans lock properly
Josef Bacik [Thu, 9 Jun 2011 14:15:17 +0000 (10:15 -0400)]
Btrfs: unlock the trans lock properly

In btrfs_wait_for_commit if we came upon a transaction that had committed we
just exited, but that's bad since we are holding the trans_lock.  So break
instead so that the lock is dropped.  Thanks,

Reported-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <josef@redhat.com>
13 years agoBtrfs: don't map extent buffer if path->skip_locking is set
Josef Bacik [Wed, 8 Jun 2011 18:36:54 +0000 (14:36 -0400)]
Btrfs: don't map extent buffer if path->skip_locking is set

Arne's scrub stuff exposed a problem with mapping the extent buffer in
reada_for_search.  He searches the commit root with multiple threads and with
skip_locking set, so we can race and overwrite node->map_token since node isn't
locked.  So fix this so that we only map the extent buffer if we don't already
have a map_token and skip_locking isn't set.  Without this patch scrub would
panic almost immediately, with the patch it doesn't panic anymore.  Thanks,

Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Josef Bacik <josef@redhat.com>
13 years agoASoC: snd_soc_new_{mixer,mux,pga} make sure to use right DAPM context
Lars-Peter Clausen [Thu, 9 Jun 2011 11:22:36 +0000 (13:22 +0200)]
ASoC: snd_soc_new_{mixer,mux,pga} make sure to use right DAPM context

Currently it is possible that snd_soc_new_{mixer,mux,pga} is called with a
DAPM context not matching the widgets context. This can lead to a wrong
prefix_len calculation, which will result in undefined behaviour. To avoid
this always use the DAPM context from the widget itself.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
13 years agox86: devicetree: Add missing early_init_dt_setup_initrd_arch stub
Florian Fainelli [Mon, 6 Jun 2011 08:15:49 +0000 (10:15 +0200)]
x86: devicetree: Add missing early_init_dt_setup_initrd_arch stub

This patch fixes the following build failure:

drivers/built-in.o: In function `early_init_dt_check_for_initrd':
/home/florian/dev/kernel/x86/linux-2.6-x86/drivers/of/fdt.c:571:
undefined reference to `early_init_dt_setup_initrd_arch'
make: *** [.tmp_vmlinux1] Error 1

which happens as soon as we enable initrd support on a x86 devicetree
platform such as Intel CE4100.

Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Maxime Bizon <mbizon@freebox.fr>
Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: stable@kernel.org # 2.6.39
Link: http://lkml.kernel.org/r/201106061015.50039.ffainelli@freebox.fr
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
13 years agoiscsi_ibft: iscsi_ibft_find unused variable i
Connor Hansen [Sun, 5 Jun 2011 10:35:09 +0000 (03:35 -0700)]
iscsi_ibft: iscsi_ibft_find unused variable i

int i is only needed if CONFIG_ACPI is set
so move it within a new ifdef so kernels without ACPI
don't allocate space for nothing. Fixes warning too.

Signed-off-by: Connor Hansen <cmdkhh@gmail.com>
Signed-off-by: Peter Jones <pjones@redhat.com>
[v2: Fixed warning when CONFIG_ACPI was defined]
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>