Commit Graph

299450 Commits

Author SHA1 Message Date
Julia Lawall f4a728d09a drivers/usb/misc/usbtest.c: add kfrees
Free the two previously allocated buffers before exiting the function in an
error case.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 14:13:52 -07:00
Anatolij Gustschin f941f69225 USB: ehci-fsl: Fix kernel crash on mpc5121e
Since commit 28c56ea143
(powerpc/usb: fix bug of kernel hang when initializing usb)
the kernel crashes on mpc5121e. mpc5121e doesn't have system interface
registers, accessing this register address space cause the machine check
exception and a kernel crash:
...
[    1.294596] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.316491] fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
[    1.337334] fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
[    1.358548] Machine check in kernel mode.
[    1.375917] Caused by (from SRR1=49030): Transfer error ack signal
[    1.395505] Oops: Machine check, sig: 7 [#1]
[    1.413113] MPC5121 ADS
[    1.428718] Modules linked in:
[    1.444841] NIP: c026efc4 LR: c0278b50 CTR: 00000000
[    1.463342] REGS: df837ba0 TRAP: 0200   Not tainted  (3.3.0-08839-gb5174fa)
[    1.484083] MSR: 00049030 <EE,ME,IR,DR>  CR: 42042022  XER: 20000000
[    1.504099] TASK = df834000[1] 'swapper' THREAD: df836000
[    1.509667] GPR00: 1c000000 df837c50 df834000 df9d74e0 00000003 00000010 00000000 00000000
[    1.531650] GPR08: 00000020 00000000 c037cdd8 e1088000 22042028 1001a69c 00000000 00000000
[    1.553762] GPR16: 1ffbce70 00000000 1fef5b28 1fef3e08 00000000 00000000 1ffcbc7c c045b264
[    1.575824] GPR24: 0000008b 00000002 c04a7dd0 e1088000 df33c960 df9d74e0 00000000 df9d7400
[    1.612295] NIP [c026efc4] ehci_fsl_setup_phy+0x110/0x124
[    1.632454] LR [c0278b50] ehci_fsl_setup+0x29c/0x304
[    1.652065] Call Trace:
[    1.668923] [df837c50] [c0278a40] ehci_fsl_setup+0x18c/0x304 (unreliable)
[    1.690332] [df837c70] [c025cba4] usb_add_hcd+0x1f0/0x66c
[    1.710377] [df837cb0] [c0277ab8] ehci_fsl_drv_probe+0x180/0x308
[    1.731322] [df837ce0] [c01fc7a8] platform_drv_probe+0x20/0x30
[    1.752202] [df837cf0] [c01fb0ac] driver_probe_device+0x8c/0x214
[    1.773491] [df837d10] [c01f956c] bus_for_each_drv+0x6c/0xa8
[    1.794279] [df837d40] [c01fafdc] device_attach+0xb4/0xd8
[    1.814574] [df837d60] [c01fa44c] bus_probe_device+0xa4/0xb4
[    1.835343] [df837d80] [c01f87a8] device_add+0x52c/0x5dc
[    1.855462] [df837dd0] [c01fcd58] platform_device_add+0x124/0x1d0
[    1.876558] [df837df0] [c036dcec] fsl_usb2_device_register+0xa0/0xd4
[    1.897512] [df837e10] [c036df28] fsl_usb2_mph_dr_of_probe+0x208/0x264
[    1.918253] [df837e90] [c01fc7a8] platform_drv_probe+0x20/0x30
[    1.938300] [df837ea0] [c01fb0ac] driver_probe_device+0x8c/0x214
[    1.958511] [df837ec0] [c01fb2f0] __driver_attach+0xbc/0xc0
[    1.978088] [df837ee0] [c01f9608] bus_for_each_dev+0x60/0x9c
[    1.997589] [df837f10] [c01fab88] driver_attach+0x24/0x34
[    2.016757] [df837f20] [c01fa744] bus_add_driver+0x1ac/0x274
[    2.036339] [df837f50] [c01fb898] driver_register+0x88/0x150
[    2.056052] [df837f70] [c01fcabc] platform_driver_register+0x68/0x78
[    2.076650] [df837f80] [c0446500] fsl_usb2_mph_dr_driver_init+0x18/0x28
[    2.097734] [df837f90] [c0003988] do_one_initcall+0x148/0x1b0
[    2.117934] [df837fc0] [c042d89c] kernel_init+0xfc/0x190
[    2.137667] [df837ff0] [c000d2c4] kernel_thread+0x4c/0x68
[    2.157240] Instruction dump:
[    2.174119] 90050004 4e800020 2f840003 419e0014 2f840004 409eff64 6400c000 4bffff5c
[    2.196000] 64001000 7c0004ac 812b0500 0c090000 <4c00012c> 61290200 7c0004ac 912b0500
[    2.218100] ---[ end trace 21659aedb84ad816 ]---
[    2.237089]
[    3.232940] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
[    3.232954]
[    3.271575] Rebooting in 1 seconds..

Check pdata->have_sysif_regs flag before accessing system interface
registers.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 14:13:52 -07:00
Linus Torvalds b6a89584c3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem fixes from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  fcaps: clear the same personality flags as suid when fcaps are used
  mpi: Avoid using freed pointer in mpi_lshift_limbs()
  Smack: move label list initialization
2012-04-18 13:23:44 -07:00
Oliver Neukum 5bd7b419ef uwb: fix error handling
Fatal errors such as a device disconnect must not trigger
error handling. The error returns must be checked.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 13:15:51 -07:00
Oliver Neukum 9426cd0568 uwb: fix use of del_timer_sync() in interrupt
del_timer_sync() cannot be used in interrupt.
Replace it with del_timer() and a flag

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 13:15:51 -07:00
Lasse Collin 0db7bd8ca0 xz: Enable BCJ filters on SPARC and 32-bit x86
The BCJ filters were meant to be enabled already on these
archs, but the xz_wrap.sh script was buggy. Enabling the
filters should give smaller kernel images.

xz_wrap.sh will now use $SRCARCH instead of $ARCH to detect
the architecture. That way it doesn't need to care about the
subarchs (like i386 vs. x86_64) since the BCJ filters don't
care either.

Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-18 13:13:18 -07:00
Alan Stern 2fbe2bf1fd EHCI: always clear the STS_FLR status bit
This patch (as1544) fixes a problem affecting some EHCI controllers.
They can generate interrupts whenever the STS_FLR status bit is turned
on, even though that bit is masked out in the Interrupt Enable
register.

Since the driver doesn't use STS_FLR anyway, the patch changes the
interrupt routine to clear that bit whenever it is set, rather than
leaving it alone.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-18 13:06:59 -07:00
Linus Torvalds 40df43a17f 1) Notable regression fix. Forbid dynamic runtime power management by
default, due to issues with suspend/resume and hotplug.
 
    To re-enable, use sysfs.
 
 2) make ata_print_id atomic, due to ref from multiple contexts
 
 3) sata_mv warning fix
 
 4) ata_piix new PCI ID
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Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

Pull libara fixes from Jeff Garzik:

 - Notable regression fix.  Forbid dynamic runtime power management by
   default, due to issues with suspend/resume and hotplug.

   To re-enable, use sysfs.

 - make ata_print_id atomic, due to ref from multiple contexts

 - sata_mv warning fix

 - ata_piix new PCI ID

* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: forbid port runtime pm by default, fixing regression
  libata: make ata_print_id atomic
  sata_mv: silence an uninitialized variable warning
  ata_piix: IDE-mode SATA patch for Intel DH89xxCC DeviceIDs
2012-04-18 12:58:29 -07:00
Konrad Rzeszutek Wilk a71e23d992 xen/blkback: Fix warning error.
drivers/block/xen-blkback/xenbus.c: In function 'xen_blkbk_discard':
drivers/block/xen-blkback/xenbus.c:419:4: warning: passing argument 1 of 'dev_warn' makes pointer from integer without a cast
+[enabled by default]
include/linux/device.h:894:5: note: expected 'const struct device *' but argument is of type 'long int'

It is unclear how that mistake made it in. It surely is wrong.

Acked-by: Jens Axboe <axboe@kernel.dk>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-04-18 15:54:08 -04:00
Konrad Rzeszutek Wilk 681e4a5e13 Merge commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81' into stable/for-linus-3.4
* commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81': (14566 commits)
  cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUS
  sparc64: Eliminate obsolete __handle_softirq() function
  sparc64: Fix bootup crash on sun4v.
  kconfig: delete last traces of __enabled_ from autoconf.h
  Revert "kconfig: fix __enabled_ macros definition for invisible and un-selected symbols"
  kconfig: fix IS_ENABLED to not require all options to be defined
  irq_domain: fix type mismatch in debugfs output format
  staging: android: fix mem leaks in __persistent_ram_init()
  staging: vt6656: Don't leak memory in drivers/staging/vt6656/ioctl.c::private_ioctl()
  staging: iio: hmc5843: Fix crash in probe function.
  panic: fix stack dump print on direct call to panic()
  drivers/rtc/rtc-pl031.c: enable clock on all ST variants
  Revert "mm: vmscan: fix misused nr_reclaimed in shrink_mem_cgroup_zone()"
  hugetlb: fix race condition in hugetlb_fault()
  drivers/rtc/rtc-twl.c: use static register while reading time
  drivers/rtc/rtc-s3c.c: add placeholder for driver private data
  drivers/rtc/rtc-s3c.c: fix compilation error
  MAINTAINERS: add PCDP console maintainer
  memcg: do not open code accesses to res_counter members
  drivers/rtc/rtc-efi.c: fix section mismatch warning
  ...
2012-04-18 15:52:50 -04:00
Lin Ming 0c8d32c27f libata: forbid port runtime pm by default, fixing regression
Forbid port runtime pm by default because it has known hotplug issue.
User can allow it by, for example

echo auto > /sys/devices/pci0000:00/0000:00:1f.2/ata2/power/control

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-04-18 14:33:25 -04:00
Guenter Roeck 1196573fe4 hwmon: (ads1015) Fix build warning
The following build warning is seen in some configurations.

drivers/hwmon/ads1015.c: In function 'show_in':
drivers/hwmon/ads1015.c:129: warning: 'in' may be used uninitialized in this function

Fix by separating the register read function from the code converting the result
into mV.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Dirk Eibach <eibach@gdsys.de>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
2012-04-18 11:15:50 -07:00
Andre Przywara 00250ec909 hwmon: fam15h_power: fix bogus values with current BIOSes
Newer BKDG[1] versions recommend a different initialization value for
the running average range register in the northbridge. This improves
the power reading by avoiding counter saturations resulting in bogus
values for anything below about 80% of TDP power consumption.
Updated BIOSes will have this new value set up from the beginning,
but meanwhile we correct this value ourselves.
This needs to be done on all northbridges, even on those where the
driver itself does not register at.

This fixes the driver on all current machines to provide proper
values for idle load.

[1]
http://support.amd.com/us/Processor_TechDocs/42301_15h_Mod_00h-0Fh_BKDG.pdf
Chapter 3.8: D18F5xE0 Processor TDP Running Average (p. 452)

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
[guenter.roeck@ericsson.com: Removed unnecessary return statement]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
2012-04-18 11:15:40 -07:00
Thomas Gleixner 9ecf8c0d4f Revert "ACPI: Make ACPI interrupt threaded"
This reverts commit 6fe0d06282.

Paul bisected this regression.

The conversion was done blindly and is wrong, as it does not provide a
primary handler to disable the level type irq on the device level.
Neither does it set the IRQF_ONESHOT flag which handles that at the irq
line level.  This can't be done as the interrupt might be shared, though
we might extend the core to force it.

So an interrupt on this line will wake up the thread, but immediately
unmask the irq after that.  Due to the interrupt being level type the
hardware interrupt is raised over and over and prevents the irq thread
from handling it.  Fail.

request_irq() unfortunately does not refuse such a request and the patch
was obviously never tested with real interrupts.

Bisected-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-18 10:16:27 -07:00
Chris Wilson 99d9acdd0c drm/i915: Do not set "Enable Panel Fitter" on SNB pageflips
Not only do the pageflip work without it at non-native modes (i.e. with
the panel fitter enabled), it also causes normal (non-pageflipped)
modesets to fail.

Reported-by: Adam Jackson <ajax@redhat.com>
Tested-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Wanted-by-for-fixes: Dave Airlie <airlied@gmail.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-18 10:30:47 +02:00
Randy Dunlap f2ec52d4c3 ALSA: fix core/vmaster.c kernel-doc warning
Fix kernel-doc warning in sound/core/vmaster.c:

Warning(sound/core/vmaster.c:429): No description found for parameter 'private_data'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-04-18 07:56:15 +02:00
Eric Paris d52fc5dde1 fcaps: clear the same personality flags as suid when fcaps are used
If a process increases permissions using fcaps all of the dangerous
personality flags which are cleared for suid apps should also be cleared.
Thus programs given priviledge with fcaps will continue to have address space
randomization enabled even if the parent tried to disable it to make it
easier to attack.

Signed-off-by: Eric Paris <eparis@redhat.com>
Reviewed-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-04-18 12:37:56 +10:00
Jesper Juhl 09c79b6096 mpi: Avoid using freed pointer in mpi_lshift_limbs()
At the start of the function we assign 'a->d' to 'ap'. Then we use the
RESIZE_IF_NEEDED macro on 'a' - this may free 'a->d' and replace it
with newly allocaetd storage. In that case, we'll be operating on
freed memory further down in the function when we index into 'ap[]'.
Since we don't actually need 'ap' until after the use of the
RESIZE_IF_NEEDED macro we can just delay the assignment to it until
after we've potentially resized, thus avoiding the issue.

While I was there anyway I also changed the integer variable 'n' to be
const. It might as well be since we only assign to it once and use it
as a constant, and then the compiler will tell us if we ever assign to
it in the future.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-04-18 12:14:28 +10:00
Casey Schaufler 86812bb0de Smack: move label list initialization
A kernel with Smack enabled will fail if tmpfs has xattr support.

Move the initialization of predefined Smack label
list entries to the LSM initialization from the
smackfs setup. This became an issue when tmpfs
acquired xattr support, but was never correct.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-04-18 12:02:28 +10:00
Alan Stern dc75ce9d92 EHCI: fix criterion for resuming the root hub
This patch (as1542) changes the criterion ehci-hcd uses to tell when
it needs to resume the controller's root hub.  A resume is needed when
a port status change is detected, obviously, but only if the root hub
is currently suspended.

Right now the driver tests whether the root hub is running, and that
is not the correct test.  In particular, if the controller has died
then the root hub should not be restarted.  In addition, some buggy
hardware occasionally requires the root hub to be running and
sending out SOF packets even while it is nominally supposed to be
suspended.

In the end, the test needs to be changed.  Rather than checking whether
the root hub is currently running, the driver will now check whether
the root hub is currently suspended.  This will yield the correct
behavior in all cases.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Peter Chen <B29397@freescale.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:58 -07:00
Bjørn Mork 749541d19e USB: sierra: avoid QMI/wwan interface on MC77xx
These devices have a number of non serial interfaces as well.  Use
the existing "Direct IP" blacklist to prevent binding to interfaces
which are handled by other drivers.

We also extend the "Direct IP" blacklist with with interfaces only
seen in "QMI" mode, assuming that these devices use the same
interface numbers for serial interfaces both in "Direct IP" and in
"QMI" mode.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:57 -07:00
Xi Wang 8bde9a62ee usb: usbtest: avoid integer overflow in alloc_sglist()
A large `nents' from userspace could overflow the allocation size,
leading to memory corruption.

| alloc_sglist()
| usbtest_ioctl()

Use kmalloc_array() to avoid the overflow.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:57 -07:00
Xi Wang e65cdfae71 usb: usbtest: avoid integer overflow in test_ctrl_queue()
Avoid overflowing context.count = param->sglen * param->iterations,
where both `sglen' and `iterations' are from userspace.

| test_ctrl_queue()
| usbtest_ioctl()

Keep -EOPNOTSUPP for error code.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:57 -07:00
Alan Stern 8963c487a8 USB: fix deadlock in bConfigurationValue attribute method
This patch (as154) fixes a self-deadlock that occurs when userspace
writes to the bConfigurationValue sysfs attribute for a hub with
children.  The task tries to lock the bandwidth_mutex at a time when
it already owns the lock:

	The attribute's method calls usb_set_configuration(),
	which calls usb_disable_device() with the bandwidth_mutex
	held.

	usb_disable_device() unregisters the existing interfaces,
	which causes the hub driver to be unbound.

	The hub_disconnect() routine calls hub_quiesce(), which
	calls usb_disconnect() for each of the hub's children.

	usb_disconnect() attempts to acquire the bandwidth_mutex
	around a call to usb_disable_device().

The solution is to make usb_disable_device() acquire the mutex for
itself instead of requiring the caller to hold it.  Then the mutex can
cover only the bandwidth deallocation operation and not the region
where the interfaces are unregistered.

This has the potential to change system behavior slightly when a
config change races with another config or altsetting change.  Some of
the bandwidth released from the old config might get claimed by the
other config or altsetting, make it impossible to restore the old
config in case of a failure.  But since we don't try to recover from
config-change failures anyway, this doesn't matter.

[This should be marked for stable kernels that contain the commit
fccf4e8620 "USB: Free bandwidth when
usb_disable_device is called."
That commit was marked for stable kernels as old as 2.6.32.]

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17 15:54:57 -07:00
Linus Torvalds 592fe89806 Ext4 regression fixes for 3.4
This fixes a scalability problem reported by Andi Kleen and Tim Chen;
 they were quite secretive about the precise nature of their workload,
 but they later admitted that it only showed up when they were using a
 large sparse file, so the amount of data I/O that was needed was close
 to zero.  I'm not sure how realistic this is and it's only a
 regression if you consider changes made since 2.6.39 to be a
 "regression" vis-a-vis the policy regarding post-merge window bug
 fixes, but Linus agreed it was worth fixing, so I'm including it in
 this pull request.
 
 This also fixes the journalled quota mount options, which I
 accidentally broke while I was cleaning up the mount option handling.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 regression fixes from Ted Ts'o:
 "This fixes a scalability problem reported by Andi Kleen and Tim Chen;
  they were quite secretive about the precise nature of their workload,
  but they later admitted that it only showed up when they were using a
  large sparse file, so the amount of data I/O that was needed was close
  to zero.

  I'm not sure how realistic this is and it's only a regression if you
  consider changes made since 2.6.39 to be a "regression" vis-a-vis the
  policy regarding post-merge window bug fixes, but Linus agreed it was
  worth fixing, so I'm including it in this pull request.

  This also fixes the journalled quota mount options, which I
  accidentally broke while I was cleaning up the mount option handling."

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix handling of journalled quota options
  ext4: address scalability issue by removing extent cache statistics
2012-04-17 13:30:34 -07:00
Linus Torvalds d44c6d4fa9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "A bunch of endianness fixes and a couple of nfsd error value fixes.

  Speaking of endianness stuff, I'm rather tempted to slap

	ccflags-y += -D__CHECK_ENDIAN__

  in fs/Makefile, if not making it default for the entire tree; nfsd
  regressions I've caught make one hell of a pile and we'd obviously
  benefit from having that kind of stuff caught earlier..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  lockd: fix the endianness bug
  ocfs2: ->e_leaf_clusters endianness breakage
  ocfs2: ->rl_count endianness breakage
  ocfs: ->rl_used breakage on big-endian
  ocfs2: ->l_next_free_req breakage on big-endian
  btrfs: btrfs_root_readonly() broken on big-endian
  ext4: fix endianness breakage in ext4_split_extent_at()
  nfsd: fix compose_entry_fh() failure exits
  nfsd: fix error value on allocation failure in nfsd4_decode_test_stateid()
  nfsd: fix endianness breakage in TEST_STATEID handling
  nfsd: fix error values returned by nfsd4_lockt() when nfsd_open() fails
  nfsd: fix b0rken error value for setattr on read-only mount
2012-04-17 13:21:50 -07:00
Stefano Stabellini b960d6c43a xen/p2m: m2p_find_override: use list_for_each_entry_safe
Use list_for_each_entry_safe and remove the spin_lock acquisition in
m2p_find_override.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-04-17 13:27:28 -04:00
Stefano Stabellini e8e937be97 xen/gntdev: do not set VM_PFNMAP
Since we are using the m2p_override we do have struct pages
corresponding to the user vma mmap'ed by gntdev.

Removing the VM_PFNMAP flag makes get_user_pages work on that vma.
An example test case would be using a Xen userspace block backend
(QDISK) on a file on NFS using O_DIRECT.

CC: stable@kernel.org
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-04-17 13:27:17 -04:00
Linus Torvalds bc0cf58ec7 Merge git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French.

* git://git.samba.org/sfrench/cifs-2.6:
  Fix number parsing in cifs_parse_mount_options
  Cleanup handling of NULL value passed for a mount option
2012-04-17 09:19:29 -07:00
Greg Ungerer 938ed25008 m68knommu: make sure 2nd FEC eth interface pins are enabled on 5275 ColdFire
The CONFIG_FEC2 define was removed from the kernel many versions ago.
But it is still being used to set the multi-function pins when compiling
for a ColdFire 527[45] SoC that has 2 ethernet interfaces. Remove the
last remaining uses of this define, and so fix the setting of the pins
for the 2nd ethernet interface.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-04-17 17:06:34 +10:00
Greg Ungerer bfdd769ac5 m68knommu: fix id number for second eth device on 5275 ColdFire
The second ColdFire FEC ethernet device should have an id number of 1,
not 0. Otherwise it clashes with the first FEC ethernet device.

On booting a kernel on a 5275 based board you will get messages out of
the kernel like this:

    <4>------------[ cut here ]------------
    <4>WARNING: at fs/sysfs/dir.c:508 0x0a8b50()
    <4>sysfs: cannot create duplicate filename 'fec.0'

And likely you won't be able to completely boot up after this at all.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-04-17 16:58:35 +10:00
Julia Lawall 6b5e7d9ef7 xen/grant-table: add error-handling code on failure of gnttab_resume
Jump to the label ini_nomem as done on the failure of the page allocations
above.

The code at ini_nomem is modified to accommodate different return values.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-04-17 00:29:32 -04:00
Linus Torvalds 4643b05662 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Handle failures of parsing immediate operands in the instruction decoder
  perf archive: Correct cutting of symbolic link
  perf tools: Ignore auto-generated bison/flex files
  perf tools: Fix parsers' rules to dependencies
  perf tools: fix NO_GTK2 Makefile config error
  perf session: Skip event correctly for unknown id/machine
2012-04-16 18:35:21 -07:00
Linus Torvalds cdd5983063 virtio: fixes on top of 3.4-rc2
Here are some virtio fixes for 3.4:
 a test build fix, a patch by Ren fixing naming for systems with a massive
 number of virtio blk devices, and balloon fixes for powerpc
 by David Gibson.
 
 There was some discussion about Ren's patch for virtio disc naming: some people
 wanted to move the legacy name mangling function to the block core.  But
 there's no concensus on that yet, and we can always deduplicate later.
 Added comments in the hope that this will stop people from
 copying this legacy naming scheme into future drivers.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes from Michael S. Tsirkin:
 "Here are some virtio fixes for 3.4: a test build fix, a patch by Ren
  fixing naming for systems with a massive number of virtio blk devices,
  and balloon fixes for powerpc by David Gibson.

  There was some discussion about Ren's patch for virtio disc naming:
  some people wanted to move the legacy name mangling function to the
  block core.  But there's no concensus on that yet, and we can always
  deduplicate later.  Added comments in the hope that this will stop
  people from copying this legacy naming scheme into future drivers."

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_balloon: fix handling of PAGE_SIZE != 4k
  virtio_balloon: Fix endian bug
  virtio_blk: helper function to format disk names
  tools/virtio: fix up vhost/test module build
2012-04-16 18:34:12 -07:00
Rafael J. Wysocki a6cb9ee7ca PCI: Retry BARs restoration for Type 0 headers only
Some shortcomings introduced into pci_restore_state() by commit
26f41062f2 ("PCI: check for pci bar restore completion and retry")
have been fixed by recent commit ebfc5b802f ("PCI: Fix regression in
pci_restore_state(), v3"), but that commit treats all PCI devices as
those with Type 0 configuration headers.

That is not entirely correct, because Type 1 and Type 2 headers have
different layouts.  In particular, the area occupied by BARs in Type 0
config headers contains the secondary status register in Type 1 ones and
it doesn't make sense to retry the restoration of that register even if
the value read back from it after a write is not the same as the written
one (it very well may be different).

For this reason, make pci_restore_state() only retry the restoration
of BARs for Type 0 config headers.  This effectively makes it behave
as before commit 26f41062f2 for all header types except for Type 0.

Tested-by: Mikko Vinni <mmvinni@yahoo.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-16 18:33:35 -07:00
Randy Dunlap 5191d566c0 Documentation: maintainer change
I'm dropping off as Documentation/ maintainer.
Rob Landley has agreed to take it over.  Thanks, Rob.

I'll still be around reviewing patches and testing.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-16 18:31:38 -07:00
Luck, Tony c76f39bddb ia64: fix futex_atomic_cmpxchg_inatomic()
Michel Lespinasse cleaned up the futex calling conventions in commit
37a9d912b2 ("futex: Sanitize cmpxchg_futex_value_locked API").

But the ia64 implementation was subtly broken.  Gcc does not know that
register "r8" will be updated by the fault handler if the cmpxchg
instruction takes an exception.  So it feels safe in letting the
initialization of r8 slide to after the cmpxchg.  Result: we always
return 0 whether the user address faulted or not.

Fix by moving the initialization of r8 into the __asm__ code so gcc
won't move it.

Reported-by: <emeric.maschino@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42757
Tested-by: <emeric.maschino@gmail.com>
Acked-by: Michel Lespinasse <walken@google.com>
Cc: stable@vger.kernel.org # v2.6.39+
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-16 18:30:01 -07:00
Theodore Ts'o 57f73c2c89 ext4: fix handling of journalled quota options
Commit 26092bf5 broke handling of journalled quota mount options by
trying to parse argument of every mount option as a number.  Fix this
by dealing with the quota options before we call match_int().

Thanks to Jan Kara for discovering this regression.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
2012-04-16 18:55:26 -04:00
Joe Perches c06a9ebdb7 checkpatch: revert --strict test for net/ and drivers/net block comment style
Revert the --strict test for the old preferred block
comment style in drivers/net and net/

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-16 12:44:38 -07:00
Jeff Layton d22053cdbd nfsd: include cld.h in the headers_install target
The cld.h file contains the definition of the upcall format to talk
with nfsdcld. When I added the file though, I neglected to add it
to the headers-y target, so make headers_install wasn't installing it.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-04-16 15:19:12 -04:00
Chris Wilson c291be9dba drm/i915: Hold mode_config lock whilst changing mode for lastclose()
Upon lastclose(), we switch back to the fbcon configuration. This
requires taking the mode_config lock in order to serialise the change
with output probing elsewhere.

Reported-by: Oleksij Rempel <bug-track@fisher-privat.net>
References: https://bugs.freedesktop.org/show_bug.cgi?id=48652
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-16 20:37:38 +02:00
Theodore Ts'o 9cd70b347e ext4: address scalability issue by removing extent cache statistics
Andi Kleen and Tim Chen have reported that under certain circumstances
the extent cache statistics are causing scalability problems due to
cache line bounces.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-04-16 12:16:20 -04:00
Greg Kroah-Hartman edffaa031e usb: fixes for v3.4-rc cycle
Here are the fixes I have queued for v3.4-rc cycle so far.
 
 It includes fixes on many of the gadget drivers and a few
 of the UDC controller drivers.
 
 For musb we have a fix for a kernel oops when unloading
 omap2430.ko glue layer, proper error checking for pm_runtime_*,
 fix for the ULPI transfer block, and a bug fix in musb_cleanup_urb
 routine.
 
 For s3c-hsotg we have mostly FIFO-related fixes (proper TX FIFO
 allocation, TX FIFO corruption fix in DMA mode) but also a couple
 of minor fixes (fixing maximum packet size for ep0 and fix for
 big transfers with DMA).
 
 For the dwc3 driver we have a memory leak fix, a very important
 fix for USB30CV with SetFeature tests and the hability to handle
 ep0 requests bigger than wMaxPacketSize.
 
 On top of that there's a bunch of gadget driver minor fixes adding
 proper section annotations, and fixing up the sysfs interface for
 doing device-initiated connect/disconnect and so on.
 
 All patches have been pending on the mailing list for quite a while
 and look good for your for-linus branch.
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Merge tag 'fixes-for-v3.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

usb: fixes for v3.4-rc cycle

Here are the fixes I have queued for v3.4-rc cycle so far.

It includes fixes on many of the gadget drivers and a few
of the UDC controller drivers.

For musb we have a fix for a kernel oops when unloading
omap2430.ko glue layer, proper error checking for pm_runtime_*,
fix for the ULPI transfer block, and a bug fix in musb_cleanup_urb
routine.

For s3c-hsotg we have mostly FIFO-related fixes (proper TX FIFO
allocation, TX FIFO corruption fix in DMA mode) but also a couple
of minor fixes (fixing maximum packet size for ep0 and fix for
big transfers with DMA).

For the dwc3 driver we have a memory leak fix, a very important
fix for USB30CV with SetFeature tests and the hability to handle
ep0 requests bigger than wMaxPacketSize.

On top of that there's a bunch of gadget driver minor fixes adding
proper section annotations, and fixing up the sysfs interface for
doing device-initiated connect/disconnect and so on.

All patches have been pending on the mailing list for quite a while
and look good for your for-linus branch.
2012-04-16 08:35:33 -07:00
Alex Deucher 5273db706f drm/radeon/si: add missing radeon_bo_unreserve in si_rlc_init() v2
Forget to unreserve after pinning.  This can lead to problems in
soft reset and resume.

v2: rework patch as per Michel's suggestion.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-04-16 13:42:04 +01:00
Dave Airlie 16a5e32b83 drm/radeon: disable MSI on RV515
My rv515 card is very flaky with msi enabled. Every so often it loses a rearm
and never comes back, manually banging the rearm brings it back.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-04-16 13:40:04 +01:00
Daniel Vetter f9bef081c3 drm/i915: don't clobber the special upscaling lvds timings
This regression has been introduced in

commit ca9bfa7eed
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Sat Jan 28 14:49:20 2012 +0100

    drm/i915: fixup interlaced vertical timings confusion, part 1

Unfortunately that commit failed to take into account that the lvds
code does some special adjustements to the crtc timings for upscaling
an centering.

Fix this by explicitly computing crtc timings in the lvds mode fixup
function and setting a special flag in mode->private_flags if the crtc
timings have been adjusted.

v2: Add a comment to explain the new mode driver private flag,
suggested by Eugeni Dodonov.

v3: Kill the confusing and now redundant set_crtcinfo call in
intel_fixed_panel_mode, noticed by Chris Wilson.

Reported-and-Tested-by: Hans de Bruin <jmdebruin@xmsnet.nl>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43071
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-16 09:21:55 +02:00
Masami Hiramatsu 6c7b8e82aa x86: Handle failures of parsing immediate operands in the instruction decoder
This can happen if the instruction is much longer than the maximum length,
or if insn->opnd_bytes is manually changed.

This patch also fixes warnings from -Wswitch-default flag.

Reported-by: Prashanth Nageshappa <prashanth@linux.vnet.ibm.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@linux.vnet.ibm.com>
Cc: Linux-mm <linux-mm@kvack.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Anton Arapov <anton@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: yrl.pp-manager.tt@hitachi.com
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120413032427.32577.42602.stgit@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-04-16 08:56:11 +02:00
Greg Ungerer 89d786011f m68knommu: move and fix the 68VZ328 platform bootlogo.h
The 68EZ328/bootlogo.h is not actually used in the 68EZ328 platform code
at all. It is used by the 68VZ328 platform code though, so move it to be
with the rest of the 68VZ328 platform code.

Commit c0e0c89c08 ("fix broken boot logo
inclusion") modified the bootlogo code to not be included in asm code.
Modify 68VZ328/bootlogo.h so that the bootlogo bit map is named correctly
for direct use in the C code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-04-16 15:11:04 +10:00
Greg Ungerer acb0c7accd m68knommu: remove the unused bootlogo.h processing for 68EZ328 and 68VZ328
The 68EZ328 and 68VZ328 platforms currently try to process their bootlogo.h
to make it clean to include in asm files. This is no longer used, the
bootlogo.h file is now included only in C code, so remove all the processing
code in the 68EZ328 and 68VZ328 Makefiles.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-04-16 15:11:04 +10:00
Linus Torvalds e816b57a33 Linux 3.4-rc3 2012-04-15 18:28:29 -07:00