Linus Torvalds [Thu, 28 Nov 2013 05:06:01 +0000 (21:06 -0800)]
Merge tag 'tty-3.13-rc2' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some tty/serial driver fixes for reported issues in 3.13-rc2.
The n_gsm "fix" was reverted as it was found to not be correct.
Hopefully this will be resolved in a future pull request, but as
there's really only one user of this line setting, it's not a big
deal..."
* tag 'tty-3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "n_gsm: race between ld close and gsmtty open"
n_tty: Protect minimum_to_wake reset for concurrent readers
tty: Reset hupped state on open
TTY: amiserial, add missing platform check
TTY: pmac_zilog, check existence of ports in pmz_console_init()
n_gsm: race between ld close and gsmtty open
tty/serial/8250: fix typo in help text
n_tty: Fix 4096-byte canonical reads
n_tty: Fix echo overrun tail computation
n_tty: Ensure reader restarts worker for next reader
Linus Torvalds [Thu, 28 Nov 2013 05:05:31 +0000 (21:05 -0800)]
Merge tag 'staging-3.13-rc2' of git://git./linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are a number of staging, and IIO driver, fixes for 3.13-rc2 that
resolve issues that have been reported for 3.13-rc1. All of these
have been in linux-next for a bit this week"
* tag 'staging-3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (25 commits)
Staging: tidspbridge: disable driver
staging: zsmalloc: Ensure handle is never 0 on success
staging/lustre/ptlrpc: fix ptlrpc_stop_pinger logic
staging: r8188eu: Fix AP mode
Staging: btmtk_usb: Add hdev parameter to hdev->send driver callback
Staging: go7007: fix up some remaining go->dev issues
staging: imx-drm: Fix modular build of DRM_IMX_IPUV3
staging: ft1000: fix use of potentially uninitialized variable
Revert "staging:media: Use dev_dbg() instead of pr_debug()"
Staging: zram: Fix memory leak by refcount mismatch
staging: vt6656: [BUG] Fix for TX USB resets from vendors driver.
staging: nvec: potential NULL dereference on error path
Staging: vt6655-6: potential NULL dereference in hostap_disable_hostapd()
staging: comedi: s626: fix value written by s626_set_dac()
Staging: comedi: pcl730: fix some bitwise vs logical AND bugs
staging: comedi: fix potentially uninitialised variable
iio:accel:kxsd9 fix missing mutex unlock
iio: adc: ti_am335x_adc: avoid double free of buffer.
staging:iio: Fix hmc5843 Kconfig dependencies
iio: Fix tcs3472 Kconfig dependencies
...
Linus Torvalds [Thu, 28 Nov 2013 05:04:37 +0000 (21:04 -0800)]
Merge tag 'driver-core-3.13-rc2' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are 3 patches for sysfs issues that have been reported. Well, 1
patch really, the first one is reverted as it's not really needed (the
correct fix is coming in through the different driver subsystems
instead)
But that 1 sysfs fix is needed, so this is still a good thing to pull
in now"
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'driver-core-3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Revert "sysfs: handle duplicate removal attempts in sysfs_remove_group()"
sysfs: use a separate locking class for open files depending on mmap
sysfs: handle duplicate removal attempts in sysfs_remove_group()
Linus Torvalds [Thu, 28 Nov 2013 04:41:54 +0000 (20:41 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
- fix compat ioctl leak in uhid, by David Herrmann
- fix scheduling in atomic context (causing actual lockups in real
world) in hid-sony driver, by Sven Eckelmann
- revert patch introducing VID/PID conflict, by Jiri Kosina
- support from various new device IDs by Benjamin Tissoires and
KaiChung Cheng
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: uhid: fix leak for 64/32 UHID_CREATE
HID: kye: fix unresponsive keyboard
HID: kye: Add report fixup for Genius Manticore Keyboard
HID: multicouh: add PID VID to support 1 new Wistron optical touch device
HID: appleir: force input to be set
Revert "HID: wiimote: add LEGO-wiimote VID"
HID: sony: Send FF commands in non-atomic context
Linus Torvalds [Thu, 28 Nov 2013 04:40:35 +0000 (20:40 -0800)]
Merge tag 'pm+acpi-3.13-rc2' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
- Fix for a recent regression in the Tegra cpufreq driver causing
excess error messages to be printed from Stephen Warren
- ACPI-based device hotplug fix to prevent conflicting notify handlers
from being installed for PCI host bridge objects. From Toshi Kani
- ACPICA update to upstream version
20131115. This contains bug fixes
mostly (loop termination fix for the get AML length function, fixes
related to namespace node removal and debug output). From Bob Moore,
Tomasz Nowicki and Lv Zheng
- Removal of incorrect inclusions of internal ACPICA header files by
non-ACPICA code from Lv Zheng
- Fixes for the ACPI sysfs interface exposing tables to user space from
Daisuke Hatayama and Jeremy Compostella
- Assorted ACPI and cpufreq cleanups from Sachin Kamat and Al Stone
- cpupower tool fix and man page from Thomas Renninger
* tag 'pm+acpi-3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: Clean up incorrect inclusions of ACPICA headers
tools: cpupower: fix wrong err msg not supported vs not available
tools: cpupower: Add cpupower-idle-set(1) manpage
ACPI / sysfs: Fix incorrect ACPI tables walk in acpi_tables_sysfs_init()
ACPI / sysfs: Set file size for each exposed ACPI table
ACPICA: Update version to
20131115.
ACPICA: Add support to delete all objects attached to the root namespace node.
ACPICA: Delete all attached data objects during namespace node deletion.
ACPICA: Resources: Fix loop termination for the get AML length function.
ACPICA: Tests: Add CHECKSUM_ABORT protection for test utilities.
ACPICA: Debug output: Do not emit function nesting level for kernel build.
ACPI / sleep: clean up compiler warning about uninitialized field
cpufreq: exynos: Remove unwanted EXPORT_SYMBOL
cpufreq: tegra: don't error target() when suspended
ACPI / hotplug: Fix conflicted PCI bridge notify handlers
Nicolas Dichtel [Wed, 20 Nov 2013 08:50:28 +0000 (09:50 +0100)]
doc: fix generation of device-drivers
Since commit
7a6354e241d8 ("sched: Move wait.c into kernel/sched/"), the
path of this file has changed.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Andy Whitcroft <apw@canonical.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Will Deacon [Wed, 27 Nov 2013 13:52:53 +0000 (13:52 +0000)]
lockref: include mutex.h rather than reinvent arch_mutex_cpu_relax
arch_mutex_cpu_relax is already conditionally defined in mutex.h, so
simply include that header rather than replicate the code here.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Jones [Wed, 27 Nov 2013 20:15:57 +0000 (15:15 -0500)]
remove obsolete references to powertweak
This tool hasn't been maintained in over a decade, and is pretty much
useless these days. Let's pretend it never happened.
Also remove a long-dead email address.
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 28 Nov 2013 04:32:38 +0000 (20:32 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
"The main thing that caused problem was that CONFIG_CPU_LITTLE_ENDIAN
got turned on with allyesconfig and such, which is not a very good
idea especially since it requires a newer toolchain than what most
people have.
So we turned it into a choice instead that defaults to big endian"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/windfarm: Fix XServe G5 fan control Makefile issue
arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory overflow
powerpc/signals: Improved mark VSX not saved with small contexts fix
powerpc/kdump: Adding symbols in vmcoreinfo to facilitate dump filtering
powerpc: allyesconfig should not select CONFIG_CPU_LITTLE_ENDIAN
powerpc: Fix error when cross building TAGS & cscope
powerpc/booke: Only check for hugetlb in flush if vma != NULL
powerpc/85xx: typo in dts: "interupt" (four devices)
powerpc/8xx: mfspr SPRN_TBRx in lieu of mftb/mftbu is not supported
powerpc/corenet64: compile with CONFIG_E{5,6}500_CPU well
Greg Kroah-Hartman [Wed, 27 Nov 2013 17:44:55 +0000 (09:44 -0800)]
Revert "sysfs: handle duplicate removal attempts in sysfs_remove_group()"
This reverts commit
54d71145a4548330313ca664a4a009772fe8b7dd.
The root cause of these "inverted" sysfs removals have now been found,
so there is no need for this patch. Keep this functionality around so
that this type of error doesn't show up in driver code again.
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Wed, 27 Nov 2013 17:32:49 +0000 (09:32 -0800)]
Staging: tidspbridge: disable driver
There seems to be no active maintainer for the driver, and there is an
unfixed security bug, so disable the driver for now.
Hopefully someone steps up to be the maintainer, and works to get this
out of staging, otherwise it will be deleted soon.
Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Omar Ramirez Luna <omar.ramirez@copitl.com>
Cc: Omar Ramirez Luna <omar.ramirez@ti.com>
Cc: Kanigeri, Hari <h-kanigeri2@ti.com>
Cc: Ameya Palande <ameya.palande@nokia.com>
Cc: Guzman Lugo, Fernando <fernando.lugo@ti.com>
Cc: Hebbar, Shivananda <x0hebbar@ti.com>
Cc: Ramos Falcon, Ernesto <ernesto@ti.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Anna, Suman <s-anna@ti.com>
Cc: Gupta, Ramesh <grgupta@ti.com>
Cc: Gomez Castellanos, Ivan <ivan.gomez@ti.com>
Cc: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Cc: Armando Uribe De Leon <x0095078@ti.com>
Cc: Deepak Chitriki <deepak.chitriki@ti.com>
Cc: Menon, Nishanth <nm@ti.com>
Cc: Phil Carmody <ext-phil.2.carmody@nokia.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Herrmann [Tue, 26 Nov 2013 12:58:18 +0000 (13:58 +0100)]
HID: uhid: fix leak for 64/32 UHID_CREATE
UHID allows short writes so user-space can omit unused fields. We
automatically set them to 0 in the kernel. However, the 64/32 bit
compat-handler didn't do that in the UHID_CREATE fallback. This will
reveal random kernel heap data (of random size, even) to user-space.
Fixes:
befde0226a59 ('HID: uhid: make creating devices work on 64/32 systems')
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Linus Torvalds [Wed, 27 Nov 2013 02:04:21 +0000 (18:04 -0800)]
Merge tag 'trace-fixes-v3.13-rc1' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"This includes two fixes.
1) is a bug fix that happens when root does the following:
echo function_graph > current_tracer
modprobe foo
echo nop > current_tracer
This causes the ftrace internal accounting to get screwed up and
crashes ftrace, preventing the user from using the function tracer
after that.
2) if a TRACE_EVENT has a string field, and NULL is given for it.
The internal trace event code does a strlen() and strcpy() on the
source of field. If it is NULL it causes the system to oops.
This bug has been there since 2.6.31, but no TRACE_EVENT ever passed
in a NULL to the string field, until now"
* tag 'trace-fixes-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace: Fix function graph with loading of modules
tracing: Allow events to have NULL strings
Linus Torvalds [Wed, 27 Nov 2013 02:02:46 +0000 (18:02 -0800)]
Merge branch 'for-linus-bugs' of git://git./linux/kernel/git/sage/ceph-client
Pull ceph bug-fixes from Sage Weil:
"These include a couple fixes to the new fscache code that went in
during the last cycle (which will need to go stable@ shortly as well),
a couple client-side directory fragmentation fixes, a fix for a race
in the cap release queuing path, and a couple race fixes in the
request abort and resend code.
Obviously some of this could have gone into 3.12 final, but I
preferred to overtest rather than send things in for a late -rc, and
then my travel schedule intervened"
* 'for-linus-bugs' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: allocate non-zero page to fscache in readpage()
ceph: wake up 'safe' waiters when unregistering request
ceph: cleanup aborted requests when re-sending requests.
ceph: handle race between cap reconnect and cap release
ceph: set caps count after composing cap reconnect message
ceph: queue cap release in __ceph_remove_cap()
ceph: handle frag mismatch between readdir request and reply
ceph: remove outdated frag information
ceph: hung on ceph fscache invalidate in some cases
Benjamin Herrenschmidt [Wed, 27 Nov 2013 00:35:47 +0000 (11:35 +1100)]
powerpc/windfarm: Fix XServe G5 fan control Makefile issue
We are missing building windfarm_max6690_sensor.o when building
CONFIG_WINDFARM_RM31. Usually all the windfarm drivers are built
and thus this isn't a problem but some more "tailored" setups
(Gentoo ?) building only that driver are not working because
the require sensor module is missing.
Reported-by: Stanislav Ponomarev <devhexorg@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Rafael J. Wysocki [Wed, 27 Nov 2013 00:05:14 +0000 (01:05 +0100)]
Merge branch 'pm-tools'
* pm-tools:
tools: cpupower: fix wrong err msg not supported vs not available
tools: cpupower: Add cpupower-idle-set(1) manpage
Rafael J. Wysocki [Wed, 27 Nov 2013 00:03:43 +0000 (01:03 +0100)]
Merge branch 'pm-cpufreq'
* pm-cpufreq:
cpufreq: exynos: Remove unwanted EXPORT_SYMBOL
cpufreq: tegra: don't error target() when suspended
Rafael J. Wysocki [Wed, 27 Nov 2013 00:03:27 +0000 (01:03 +0100)]
Merge branch 'acpica'
* acpica:
ACPI: Clean up incorrect inclusions of ACPICA headers
ACPICA: Update version to
20131115.
ACPICA: Add support to delete all objects attached to the root namespace node.
ACPICA: Delete all attached data objects during namespace node deletion.
ACPICA: Resources: Fix loop termination for the get AML length function.
ACPICA: Tests: Add CHECKSUM_ABORT protection for test utilities.
ACPICA: Debug output: Do not emit function nesting level for kernel build.
Linus Torvalds [Tue, 26 Nov 2013 19:18:37 +0000 (11:18 -0800)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Mostly bugfixes and a few small code removals. Worth pointing out is:
- A handful of more fixes to get DT enablement working properly on
OMAP, finding new breakage of things that don't work quite right
yet without the traditional board files. I expect a bit more of
this to come in this release as people test on their hardware.
- Implementation of power_down_finish() on vexpress, to make kexec
work and to stop the MCPM core to produce a warning (the warning
was new to 3.13-rc1).
- A handful of minor fixes for various platforms"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: bcm2835: add missing #xxx-cells to I2C nodes
ARM: dts: Add max77686 RTC interrupt to cros5250-common
ARM: vexpress/TC2: Implement MCPM power_down_finish()
ARM: tegra: Provide dummy powergate implementation
ARM: omap: fix warning with LPAE build
ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
ARM: OMAP2+: Remove legacy mux code for display.c
ARM: OMAP2+: Fix undefined reference to set_cntfreq
gpio: twl4030: Fix passing of pdata in the device tree case
gpio: twl4030: Fix regression for twl gpio output
ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
ARM: dts: imx6qdl: disable spdif "rxtx5" clock option
ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
i2c: omap: Fix missing device tree flags for omap2
Linus Torvalds [Tue, 26 Nov 2013 19:16:54 +0000 (11:16 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security
Pull IMA fixes from James Morris:
"These three patches fix regressions in the IMA code in your current
tree.
The first fixes a couple of bugs in template_desc_init_fields(), and
the other two ensure that changes in this kernel don't break
userspace"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
ima: make a copy of template_fmt in template_desc_init_fields()
ima: do not send field length to userspace for digest of ima template
ima: do not include field length in template digest calc for ima template
Linus Torvalds [Tue, 26 Nov 2013 19:15:12 +0000 (11:15 -0800)]
Merge tag 'ntb-3.13' of git://github.com/jonmason/ntb
Pull non-transparent bridge updates from Jon Mason:
"NTB driver bug fixes to address a missed call to pci_enable_msix,
NTB-RP Link Up issue, Xeon Doorbell errata workaround, ntb_transport
link down race, and correct dmaengine_get/put usage.
Also, clean-ups to remove duplicate defines and document a hardware
errata. Finally, some changes to improve performance"
* tag 'ntb-3.13' of git://github.com/jonmason/ntb:
NTB: Disable interrupts and poll under high load
NTB: Enable Snoop on Primary Side
NTB: Document HW errata
NTB: remove duplicate defines
NTB: correct dmaengine_get/put usage
NTB: Fix ntb_transport link down race
ntb: Fix missed call to pci_enable_msix()
NTB: Fix NTB-RP Link Up
NTB: Xeon Doorbell errata workaround
Steven Rostedt (Red Hat) [Tue, 26 Nov 2013 01:59:46 +0000 (20:59 -0500)]
ftrace: Fix function graph with loading of modules
Commit
8c4f3c3fa9681 "ftrace: Check module functions being traced on reload"
fixed module loading and unloading with respect to function tracing, but
it missed the function graph tracer. If you perform the following
# cd /sys/kernel/debug/tracing
# echo function_graph > current_tracer
# modprobe nfsd
# echo nop > current_tracer
You'll get the following oops message:
------------[ cut here ]------------
WARNING: CPU: 2 PID: 2910 at /linux.git/kernel/trace/ftrace.c:1640 __ftrace_hash_rec_update.part.35+0x168/0x1b9()
Modules linked in: nfsd exportfs nfs_acl lockd ipt_MASQUERADE sunrpc ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables uinput snd_hda_codec_idt
CPU: 2 PID: 2910 Comm: bash Not tainted 3.13.0-rc1-test #7
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS SDBLI944.86P 05/08/2007
0000000000000668 ffff8800787efcf8 ffffffff814fe193 ffff88007d500000
0000000000000000 ffff8800787efd38 ffffffff8103b80a 0000000000000668
ffffffff810b2b9a ffffffff81a48370 0000000000000001 ffff880037aea000
Call Trace:
[<
ffffffff814fe193>] dump_stack+0x4f/0x7c
[<
ffffffff8103b80a>] warn_slowpath_common+0x81/0x9b
[<
ffffffff810b2b9a>] ? __ftrace_hash_rec_update.part.35+0x168/0x1b9
[<
ffffffff8103b83e>] warn_slowpath_null+0x1a/0x1c
[<
ffffffff810b2b9a>] __ftrace_hash_rec_update.part.35+0x168/0x1b9
[<
ffffffff81502f89>] ? __mutex_lock_slowpath+0x364/0x364
[<
ffffffff810b2cc2>] ftrace_shutdown+0xd7/0x12b
[<
ffffffff810b47f0>] unregister_ftrace_graph+0x49/0x78
[<
ffffffff810c4b30>] graph_trace_reset+0xe/0x10
[<
ffffffff810bf393>] tracing_set_tracer+0xa7/0x26a
[<
ffffffff810bf5e1>] tracing_set_trace_write+0x8b/0xbd
[<
ffffffff810c501c>] ? ftrace_return_to_handler+0xb2/0xde
[<
ffffffff811240a8>] ? __sb_end_write+0x5e/0x5e
[<
ffffffff81122aed>] vfs_write+0xab/0xf6
[<
ffffffff8150a185>] ftrace_graph_caller+0x85/0x85
[<
ffffffff81122dbd>] SyS_write+0x59/0x82
[<
ffffffff8150a185>] ftrace_graph_caller+0x85/0x85
[<
ffffffff8150a2d2>] system_call_fastpath+0x16/0x1b
---[ end trace
940358030751eafb ]---
The above mentioned commit didn't go far enough. Well, it covered the
function tracer by adding checks in __register_ftrace_function(). The
problem is that the function graph tracer circumvents that (for a slight
efficiency gain when function graph trace is running with a function
tracer. The gain was not worth this).
The problem came with ftrace_startup() which should always be called after
__register_ftrace_function(), if you want this bug to be completely fixed.
Anyway, this solution moves __register_ftrace_function() inside of
ftrace_startup() and removes the need to call them both.
Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Fixes:
ed926f9b35cd ("ftrace: Use counters to enable functions to trace")
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Steven Rostedt (Red Hat) [Tue, 26 Nov 2013 14:22:54 +0000 (09:22 -0500)]
tracing: Allow events to have NULL strings
If an TRACE_EVENT() uses __assign_str() or __get_str on a NULL pointer
then the following oops will happen:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<
c127a17b>] strlen+0x10/0x1a
*pde =
00000000 ^M
Oops: 0000 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.13.0-rc1-test+ #2
Hardware name: /DG965MQ, BIOS MQ96510J.86A.0372.2006.0605.1717 06/05/2006^M
task:
f5cde9f0 ti:
f5e5e000 task.ti:
f5e5e000
EIP: 0060:[<
c127a17b>] EFLAGS:
00210046 CPU: 1
EIP is at strlen+0x10/0x1a
EAX:
00000000 EBX:
c2472da8 ECX:
ffffffff EDX:
c2472da8
ESI:
c1c5e5fc EDI:
00000000 EBP:
f5e5fe84 ESP:
f5e5fe80
DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0:
8005003b CR2:
00000000 CR3:
01f32000 CR4:
000007d0
Stack:
f5f18b90 f5e5feb8 c10687a8 0759004f 00000005 00000005 00000005 00200046
00000002 00000000 c1082a93 f56c7e28 c2472da8 c1082a93 f5e5fee4 c106bc61^M
00000000 c1082a93 00000000 00000000 00000001 00200046 00200082 00000000
Call Trace:
[<
c10687a8>] ftrace_raw_event_lock+0x39/0xc0
[<
c1082a93>] ? ktime_get+0x29/0x69
[<
c1082a93>] ? ktime_get+0x29/0x69
[<
c106bc61>] lock_release+0x57/0x1a5
[<
c1082a93>] ? ktime_get+0x29/0x69
[<
c10824dd>] read_seqcount_begin.constprop.7+0x4d/0x75
[<
c1082a93>] ? ktime_get+0x29/0x69^M
[<
c1082a93>] ktime_get+0x29/0x69
[<
c108a46a>] __tick_nohz_idle_enter+0x1e/0x426
[<
c10690e8>] ? lock_release_holdtime.part.19+0x48/0x4d
[<
c10bc184>] ? time_hardirqs_off+0xe/0x28
[<
c1068c82>] ? trace_hardirqs_off_caller+0x3f/0xaf
[<
c108a8cb>] tick_nohz_idle_enter+0x59/0x62
[<
c1079242>] cpu_startup_entry+0x64/0x192
[<
c102299c>] start_secondary+0x277/0x27c
Code: 90 89 c6 89 d0 88 c4 ac 38 e0 74 09 84 c0 75 f7 be 01 00 00 00 89 f0 48 5e 5d c3 55 89 e5 57 66 66 66 66 90 83 c9 ff 89 c7 31 c0 <f2> ae f7 d1 8d 41 ff 5f 5d c3 55 89 e5 57 66 66 66 66 90 31 ff
EIP: [<
c127a17b>] strlen+0x10/0x1a SS:ESP 0068:
f5e5fe80
CR2:
0000000000000000
---[ end trace
01bc47bf519ec1b2 ]---
New tracepoints have been added that have allowed for NULL pointers
being assigned to strings. To fix this, change the TRACE_EVENT() code
to check for NULL and if it is, it will assign "(null)" to it instead
(similar to what glibc printf does).
Reported-by: Shuah Khan <shuah.kh@samsung.com>
Reported-by: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Link: http://lkml.kernel.org/r/CAGdX0WFeEuy+DtpsJzyzn0343qEEjLX97+o1VREFkUEhndC+5Q@mail.gmail.com
Link: http://lkml.kernel.org/r/528D6972.9010702@samsung.com
Fixes:
9cbf117662e2 ("tracing/events: provide string with undefined size support")
Cc: stable@vger.kernel.org # 2.6.31+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Stephen Warren [Tue, 26 Nov 2013 03:35:42 +0000 (20:35 -0700)]
ARM: bcm2835: add missing #xxx-cells to I2C nodes
The I2C controller node needs #address-cells and #size-cells properties,
but these are currently missing. Add them. This allows child nodes to be
parsed correctly.
Cc: stable@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Mattia Dongili [Mon, 25 Nov 2013 22:43:50 +0000 (07:43 +0900)]
sony-laptop: do not scribble keyboard backlight registers on resume
Follow-up to commit
294d31e8227c ("sony-laptop: don't change keyboard
backlight settings"): avoid messing up the state on resume. Leave it to
what was before suspending as it's anyway likely that we still don't
know what value we should write to the EC registers. This fix is also
required in 3.12
Cc: stable@vger.kernel.org
Tested-by: Karol Babioch <karol@babioch.de>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Greg Kroah-Hartman [Tue, 26 Nov 2013 02:30:21 +0000 (18:30 -0800)]
Revert "n_gsm: race between ld close and gsmtty open"
This reverts commit
c284ee2cf12b55fa8496b2d098bf0938688f1c1c. Turns out
the locking was incorrect.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Chao Bi <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
James Morris [Tue, 26 Nov 2013 00:05:14 +0000 (11:05 +1100)]
Merge branch 'for-linus' of git://git./linux/kernel/git/zohar/linux-integrity into for-linus
Kevin Hilman [Mon, 25 Nov 2013 23:54:42 +0000 (15:54 -0800)]
Merge tag 'imx-fixes-3.13-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
The imx fixes for 3.13, part 2:
- Disable S/PDIF "rxtx5" clock option to fix the clocksource breakage
introduced by S/PDIF driver
* tag 'imx-fixes-3.13-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: dts: imx6qdl: disable spdif "rxtx5" clock option
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Lv Zheng [Fri, 22 Nov 2013 23:27:27 +0000 (07:27 +0800)]
ACPI: Clean up incorrect inclusions of ACPICA headers
Header file <acpi/acpi.h> contains environemnt settings and architecture
specific implementation that should be included before any other ACPICA
headers in order to keep a consistent build environment for ACPICA users.
The following internal ACPICA header files should be included from
<acpi/acpi.h> and should not be included by other kernel files:
<acpi/acpiosxf.h>
<acpi/acpixf.h>
Clean up incorrect inclusions of these files from non-ACPICA source
files.
[rjw: Subject and changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Doug Anderson [Wed, 23 Oct 2013 13:11:01 +0000 (06:11 -0700)]
ARM: dts: Add max77686 RTC interrupt to cros5250-common
Without the interrupt you'll get problems if you enable
CONFIG_RTC_DRV_MAX77686. Setup the interrupt properly in the device
tree.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org
Dave Martin [Mon, 25 Nov 2013 16:16:25 +0000 (16:16 +0000)]
ARM: vexpress/TC2: Implement MCPM power_down_finish()
This patch implements the power_down_finish() method for TC2, to
enable the kernel to confirm when CPUs are safely powered down.
The information required for determining when a CPU is parked
cannot be obtained from any single place, so a few sources of
information must be combined:
* mcpm_cpu_power_down() must be pending for the CPU, so that we
don't get confused by false STANDBYWFI positives arising from
CPUidle. This is detected by waiting for the tc2_pm use count
for the target CPU to reach 0.
* Either the SPC must report that the CPU has asserted
STANDBYWFI, or the TC2 tile's reset control logic must be
holding the CPU in reset.
Just checking for STANDBYWFI is not sufficient, because this
signal is not latched when the the cluster is clamped off and
powered down: the relevant status bits just drop to zero. This
means that STANDBYWFI status cannot be used for reliable
detection of the last CPU in a cluster reaching WFI.
This patch is required in order for kexec to work with MCPM on TC2.
MCPM code was changed in commit
0de0d6467525 ('ARM: 7848/1: mcpm:
Implement cpu_kill() to synchronise on powerdown'), and since then it
will hit a WARN_ON_ONCE() due to power_down_finish not being implemented
on the TC2 platform.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Thomas Renninger [Sat, 16 Nov 2013 13:39:22 +0000 (14:39 +0100)]
tools: cpupower: fix wrong err msg not supported vs not available
idlestates in sysfs are counted from 0.
This fixes a wrong error message.
Current behavior on a machine with 4 sleep states is:
cpupower idle-set -e 4
Idlestate 4 enabled on CPU 0
-----Wrong---------------------
cpupower idle-set -e 5
Idlestate enabling not supported by kernel
-----Must and now will be -----
cpupower idle-set -e 5
Idlestate 6 not available on CPU 0
-------------------------------
cpupower idle-set -e 6
Idlestate 6 not available on CPU 0
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Thomas Renninger [Sat, 16 Nov 2013 13:39:21 +0000 (14:39 +0100)]
tools: cpupower: Add cpupower-idle-set(1) manpage
The cpupower idle-set subcommand was introduce recently.
This patch provides the missing manpage.
If cpupower is properly installed it will show up automatically
(similar to git), when invoking:
cpupower help idle-set
or
cpupower idle-set --help
Some parts have been taken over and adjusted from
git commit
62d6ae880e3e76098
documentation submitted by Carsten Emde.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Thierry Reding [Mon, 25 Nov 2013 18:49:47 +0000 (11:49 -0700)]
ARM: tegra: Provide dummy powergate implementation
In order to support increased build test coverage for drivers, implement
dummies for the powergate implementation. This will allow the drivers to
be built without requiring support for Tegra to be selected.
This patch solves the following build errors, which can be triggered in
v3.13-rc1 by selecting DRM_TEGRA without ARCH_TEGRA:
drivers/built-in.o: In function `gr3d_remove':
drivers/gpu/drm/tegra/gr3d.c:321: undefined reference to `tegra_powergate_power_off'
drivers/gpu/drm/tegra/gr3d.c:325: undefined reference to `tegra_powergate_power_off'
drivers/built-in.o: In function `gr3d_probe':
drivers/gpu/drm/tegra/gr3d.c:266: undefined reference to `tegra_powergate_sequence_power_up'
drivers/gpu/drm/tegra/gr3d.c:273: undefined reference to `tegra_powergate_sequence_power_up'
Signed-off-by: Thierry Reding <treding@nvidia.com>
[swarren, updated commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Tue, 19 Nov 2013 19:50:37 +0000 (11:50 -0800)]
Merge tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git./linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Few more fixes for issues found booting older omaps using device tree.
Also few randconfig build fixes and removal of some dead code for omap4
as it no longer has legacy platform data based booting support.
* tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
ARM: OMAP2+: Remove legacy mux code for display.c
ARM: OMAP2+: Fix undefined reference to set_cntfreq
gpio: twl4030: Fix passing of pdata in the device tree case
gpio: twl4030: Fix regression for twl gpio output
ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
i2c: omap: Fix missing device tree flags for omap2
Olof Johansson [Wed, 13 Nov 2013 06:51:28 +0000 (22:51 -0800)]
ARM: omap: fix warning with LPAE build
Some omap3 code is throwing a warning:
arch/arm/mach-omap2/pm34xx.c: In function 'omap3_save_secure_ram_context':
arch/arm/mach-omap2/pm34xx.c:123:32: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
In reality this code will never actually execute with LPAE=y, since
Cortex-A8 doesn't support it. So downcasting the __pa() is safe in
this case.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Rafael J. Wysocki [Mon, 25 Nov 2013 21:30:30 +0000 (22:30 +0100)]
Merge branches 'acpi-hotplug', 'acpi-sysfs' and 'acpi-sleep'
* acpi-hotplug:
ACPI / hotplug: Fix conflicted PCI bridge notify handlers
* acpi-sysfs:
ACPI / sysfs: Fix incorrect ACPI tables walk in acpi_tables_sysfs_init()
ACPI / sysfs: Set file size for each exposed ACPI table
* acpi-sleep:
ACPI / sleep: clean up compiler warning about uninitialized field
Olav Haugan [Fri, 22 Nov 2013 17:30:41 +0000 (09:30 -0800)]
staging: zsmalloc: Ensure handle is never 0 on success
zsmalloc encodes a handle using the pfn and an object
index. On hardware platforms with physical memory starting
at 0x0 the pfn can be 0. This causes the encoded handle to be
0 and is incorrectly interpreted as an allocation failure.
This issue affects all current and future SoCs with physical
memory starting at 0x0. All MSM8974 SoCs which includes
Google Nexus 5 devices are affected.
To prevent this false error we ensure that the encoded handle
will not be 0 when allocation succeeds.
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peng Tao [Thu, 21 Nov 2013 14:42:45 +0000 (22:42 +0800)]
staging/lustre/ptlrpc: fix ptlrpc_stop_pinger logic
It was introduced due to a patch hunk when porting
commit
20802057 (staging/lustre/ptlrpc: race in pinger).
Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Cc: stable <stable@vger.kernel.org> # 3.12
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Sun, 17 Nov 2013 19:32:15 +0000 (13:32 -0600)]
staging: r8188eu: Fix AP mode
Two code lines were accidentally deleted. Restore them.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 25 Nov 2013 20:50:11 +0000 (12:50 -0800)]
Merge tag 'fixes-for-3.13a' of git://git./linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
First round of fixes for IIO in the 3.13 cycle.
The usual mixed bag of fixes.
* 3 cases where kconfig dependencies were missing. We need to keep a closer
eye on this in new drivers.
* hid_sensors was abusing the iio_dev->trigger pointer. We had a round
of clearing this out some time ago but this driver clearly slipped through.
* A misuse of the IIO_ST macro, in mcp3422, which we should really make a
concertive effort to finish removing.
* Avoid a double free introduced by recent buffer reference counting in the
one driver that (quite reasonably!) does things differently (am335x)
* A missing mutex_unlock in kxsd9 that means that driver has been non
functional for some time and no one noticed (including me who for once
actually has one of the supported devices).
* An incorrect assumption about the parameters of sign_extend32 in mcp3422.
So nothing controversial. The only substantial patch is the hid_sensors
one and that is actually just adding a new pointer to the devices private
state then moving the code over to it.
Linus Torvalds [Mon, 25 Nov 2013 20:50:08 +0000 (12:50 -0800)]
Merge tag 'regulator-v3.13-rc1' of git://git./linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A bunch of fixes, a few driver specific ones and a framework fix for
voltage enumeration on fixed voltage regulators which had previously
worked but had been misplaced during some refactoring causing problems
for users that needed to know the voltage"
* tag 'regulator-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: arizona-micsupp: Correct wm5110 voltage selection
regulator: pfuze100: allow misprogrammed ID
regulator: fixed: fix regulator_list_voltage() for regression
regulator: gpio-regulator: Don't oops on missing regulator-type property
Geert Uytterhoeven [Fri, 15 Nov 2013 12:07:11 +0000 (13:07 +0100)]
Staging: btmtk_usb: Add hdev parameter to hdev->send driver callback
drivers/staging/btmtk_usb/btmtk_usb.c: In function ‘btmtk_usb_probe’:
drivers/staging/btmtk_usb/btmtk_usb.c:1610: warning: assignment from incompatible pointer type
Add the new hdev parameter, cfr. commit
7bd8f09f69f8a190f9b8334a07bb0a9237612314 ("Bluetooth: Add hdev parameter to
hdev->send driver callback").
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Roberto Sassu [Mon, 25 Nov 2013 19:18:52 +0000 (20:18 +0100)]
ima: make a copy of template_fmt in template_desc_init_fields()
This patch makes a copy of the 'template_fmt' function argument so that
the latter will not be modified by strsep(), which does the splitting by
replacing the given separator with '\0'.
IMA: No TPM chip found, activating TPM-bypass!
Unable to handle kernel pointer dereference at virtual kernel address
0000000000842000
Oops: 0004 [#1] SMP
Modules linked in:
CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.12.0-rc2-00098-g3ce1217d6cd5 #17
task:
000000003ffa0000 ti:
000000003ff84000 task.ti:
000000003ff84000
Krnl PSW :
0704e00180000000 000000000044bf88 (strsep+0x7c/0xa0)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 EA:3
Krnl GPRS:
000000000000007c 000000000000007c 000000003ff87d90 0000000000821fd8
0000000000000000 000000000000007c 0000000000aa37e0 0000000000aa9008
0000000000000051 0000000000a114d8 0000000100000002 0000000000842bde
0000000000842bdf 00000000006f97f0 000000000040062c 000000003ff87cf0
Krnl Code:
000000000044bf7c:
a7f4000a brc 15,44bf90
000000000044bf80:
b90200cc ltgr %r12,%r12
#
000000000044bf84:
a7840006 brc 8,44bf90
>
000000000044bf88:
9200c000 mvi 0(%r12),0
000000000044bf8c:
41c0c001 la %r12,1(%r12)
000000000044bf90:
e3c020000024 stg %r12,0(%r2)
000000000044bf96:
b904002b lgr %r2,%r11
000000000044bf9a:
ebbcf0700004 lmg %r11,%r12,112(%r15)
Call Trace:
([<
00000000004005fe>] ima_init_template+0xa2/0x1bc)
[<
0000000000a7c896>] ima_init+0x7a/0xa8
[<
0000000000a7c938>] init_ima+0x24/0x40
[<
00000000001000e8>] do_one_initcall+0x68/0x128
[<
0000000000a4eb56>] kernel_init_freeable+0x20a/0x2b4
[<
00000000006a1ff4>] kernel_init+0x30/0x178
[<
00000000006b69fe>] kernel_thread_starter+0x6/0xc
[<
00000000006b69f8>] kernel_thread_starter+0x0/0xc
Last Breaking-Event-Address:
[<
000000000044bf42>] strsep+0x36/0xa0
Fixes commit: adf53a7 ima: new templates management mechanism
Changelog v1:
- make template_fmt 'const char *' (reported-by James Morris)
- fix kstrdup memory leak (reported-by James Morris)
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Greg Kroah-Hartman [Mon, 25 Nov 2013 17:29:32 +0000 (09:29 -0800)]
Staging: go7007: fix up some remaining go->dev issues
This fixes up the remaining "dev is used before it is set" issues in the
go7007 driver that were originally caused by commit
b6ea5ef80aa7fd6f4b18ff2e4174930e8772e812 but not fixed up by reverting
it due to other patches later on adding these "fixes".
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Josh Boyer [Tue, 12 Nov 2013 17:15:45 +0000 (12:15 -0500)]
staging: imx-drm: Fix modular build of DRM_IMX_IPUV3
commit
b8d181e408af (staging: drm/imx: add drm plane support) added a file
to the make target for DRM_IMX_IPUV3 but didn't adjust the objs required
to actually build that as a module. Kbuild got confused and this lead to
link errors like:
ERROR: "ipu_plane_disable" [drivers/staging/imx-drm/ipuv3-crtc.ko] undefined!
ERROR: "ipu_plane_enable" [drivers/staging/imx-drm/ipuv3-crtc.ko] undefined!
Additionally, it added a call to imx_drm_crtc_id which also fails with a
link error as above. To fix this, we adjust the make target with the proper
objs, which will change the name of the resulting .ko. We also add an
EXPORT_SYMBOL_GPL for imx_drm_crtc_id.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Fixes:
b8d181e408af '(staging: drm/imx: add drm plane support)'
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michal Nazarewicz [Sun, 10 Nov 2013 18:37:54 +0000 (19:37 +0100)]
staging: ft1000: fix use of potentially uninitialized variable
If boot_case is false, status in never assigned a value.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 25 Nov 2013 17:21:55 +0000 (09:21 -0800)]
Revert "staging:media: Use dev_dbg() instead of pr_debug()"
This reverts commit
b6ea5ef80aa7fd6f4b18ff2e4174930e8772e812.
Turns out to have lots of run-time issues in that the structure is not
initialized before it is used in the debugging messages.
Reported-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Thu, 7 Nov 2013 19:01:57 +0000 (14:01 -0500)]
n_tty: Protect minimum_to_wake reset for concurrent readers
With multiple, concurrent readers (each waiting to acquire the
atomic_read_lock mutex), a departing reader may mistakenly reset
minimum_to_wake after a new reader has already set a new value.
Protect the minimum_to_wake reset with the atomic_read_lock critical
section.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rashika Kheria [Sun, 10 Nov 2013 16:43:53 +0000 (22:13 +0530)]
Staging: zram: Fix memory leak by refcount mismatch
As suggested by Minchan Kim and Jerome Marchand "The code in reset_store
get the block device (bdget_disk()) but it does not put it (bdput()) when
it's done using it. The usage count is therefore incremented but never
decremented."
This patch also puts bdput() for all error cases.
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Malcolm Priestley [Thu, 7 Nov 2013 21:49:04 +0000 (21:49 +0000)]
staging: vt6656: [BUG] Fix for TX USB resets from vendors driver.
This fixes resets on heavy TX data traffic.
Vendor driver
VT6656_Linux_src_v1.21.03_x86_11.04.zip
http://www.viaembedded.com/servlet/downloadSvl?id=1890&download_file_id=14704
This is GPL-licensed code.
original code
BBbVT3184Init
...
//2007-0725, RobertChang add, Enable Squelch detect reset option(SQ_RST_Opt), USB (register4, bit1)
CONTROLnsRequestIn(pDevice,
MESSAGE_TYPE_READ,
(WORD)0x600+4, // USB's Reg4's bit1
MESSAGE_REQUEST_MEM,
1,
(PBYTE) &byData);
byData = byData|2 ;
CONTROLnsRequestOut(pDevice,
MESSAGE_TYPE_WRITE,
(WORD)0x600+4, // USB's Reg4's bit1
MESSAGE_REQUEST_MEM,
1,
(PBYTE) &byData);
return TRUE;//ntStatus;
....
A back port patch is needed for kernels less than 3.10.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Carpenter [Thu, 7 Nov 2013 11:25:32 +0000 (14:25 +0300)]
staging: nvec: potential NULL dereference on error path
We assume nvec->rx can be NULL earlier so I have added a check here as
well.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Carpenter [Thu, 7 Nov 2013 07:55:43 +0000 (10:55 +0300)]
Staging: vt6655-6: potential NULL dereference in hostap_disable_hostapd()
We fixed this to use free_netdev() instead of kfree() but unfortunately
free_netdev() doesn't accept NULL pointers. Smatch complains about
this, it's not something I discovered through testing.
Fixes:
3030d40b5036 ('staging: vt6655: use free_netdev instead of kfree')
Fixes:
0a438d5b381e ('staging: vt6656: use free_netdev instead of kfree')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Wed, 6 Nov 2013 20:45:59 +0000 (20:45 +0000)]
staging: comedi: s626: fix value written by s626_set_dac()
I broke `s626_set_dac()` by changing the type of the `dacdata` parameter
from `short` to `unsigned short`. It's actually designed to take a
signed value in the range -0x1fff to +0x2000 although values above
0x1fff get clamped to 0x1fff. (We could change the `maxdata` value to
0x1ffe to avoid the clamping, but `maxdata` values are usually a power
of 2 minus 1.) The bug results in all negative values passed to the
function being changed to +0x1fff by the clamp. Change the parameter
type to `int16_t` to fix the problem.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Carpenter [Thu, 7 Nov 2013 08:13:00 +0000 (11:13 +0300)]
Staging: comedi: pcl730: fix some bitwise vs logical AND bugs
These conditions are never true because they use bitwise AND instead of
logical ands.
Fixes:
b3ff824a81e8 ('staging: comedi: drivers: use comedi_dio_update_state() for complex cases')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michal Nazarewicz [Mon, 11 Nov 2013 11:31:51 +0000 (12:31 +0100)]
staging: comedi: fix potentially uninitialised variable
If none of the if conditions take a true path, the ret variable will
never be assigned a value.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Tue, 19 Nov 2013 13:46:27 +0000 (08:46 -0500)]
tty: Reset hupped state on open
A common security idiom is to hangup the current tty (via vhangup())
after forking but before execing a root shell. This hangs up any
existing opens which other processes may have and ensures subsequent
opens have the necessary permissions to open the root shell tty/pty.
Reset the TTY_HUPPED state after the driver has successfully
returned the opened tty (perform the reset while the tty is locked
to avoid racing with concurrent hangups).
Reported-by: Heorhi Valakhanovich <valahanovich@tut.by>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Cc: stable <stable@vger.kernel.org> # 3.12
Tested-by: Heorhi Valakhanovich <valahanovich@tut.by>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Geert Uytterhoeven [Fri, 22 Nov 2013 15:47:27 +0000 (16:47 +0100)]
TTY: amiserial, add missing platform check
When booting a multi-platform m68k kernel on a non-Amiga with
"console=ttyS0" on the kernel command line, it crashes with:
Unable to handle kernel access at virtual address
81dff01c
Oops:
00000000
PC: [<
001e09a8>] serial_console_write+0xc/0x70
Add the missing platform check to amiserial_console_init() to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Geert Uytterhoeven [Fri, 22 Nov 2013 15:47:26 +0000 (16:47 +0100)]
TTY: pmac_zilog, check existence of ports in pmz_console_init()
When booting a multi-platform m68k kernel on a non-Mac with "console=ttyS0"
on the kernel command line, it crashes with:
Unable to handle kernel NULL pointer dereference at virtual address (null)
Oops:
00000000
PC: [<
0013ad28>] __pmz_startup+0x32/0x2a0
...
Call Trace: [<
002c5d3e>] pmz_console_setup+0x64/0xe4
The normal tty driver doesn't crash, because init_pmz() checks
pmz_ports_count again after calling pmz_probe().
In the serial console initialization path, pmz_console_init() doesn't do
this, causing the driver to crash later.
Add a check for pmz_ports_count to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chao Bi [Thu, 17 Oct 2013 07:08:27 +0000 (15:08 +0800)]
n_gsm: race between ld close and gsmtty open
ttyA has ld associated to n_gsm, when ttyA is closing, it triggers
to release gsmttyB's ld data dlci[B], then race would happen if gsmttyB
is opening in parallel.
Here are race cases we found recently in test:
CASE #1
====================================================================
releasing dlci[B] race with gsmtty_install(gsmttyB), then panic
in gsmtty_open(gsmttyB), as below:
tty_release(ttyA) tty_open(gsmttyB)
| |
----- gsmtty_install(gsmttyB)
| |
----- gsm_dlci_alloc(gsmttyB) => alloc dlci[B]
tty_ldisc_release(ttyA) -----
| |
gsm_dlci_release(dlci[B]) -----
| |
gsm_dlci_free(dlci[B]) -----
| |
----- gsmtty_open(gsmttyB)
gsmtty_open()
{
struct gsm_dlci *dlci = tty->driver_data; => here it uses dlci[B]
...
}
In gsmtty_open(gsmttyA), it uses dlci[B] which was release, so hit a panic.
=====================================================================
CASE #2
=====================================================================
releasing dlci[0] race with gsmtty_install(gsmttyB), then panic
in gsmtty_open(), as below:
tty_release(ttyA) tty_open(gsmttyB)
| |
----- gsmtty_install(gsmttyB)
| |
----- gsm_dlci_alloc(gsmttyB) => alloc dlci[B]
| |
----- gsmtty_open(gsmttyB) fail
| |
----- tty_release(gsmttyB)
| |
----- gsmtty_close(gsmttyB)
| |
----- gsmtty_detach_dlci(dlci[B])
| |
----- dlci_put(dlci[B])
| |
tty_ldisc_release(ttyA) -----
| |
gsm_dlci_release(dlci[0]) -----
| |
gsm_dlci_free(dlci[0]) -----
| |
----- dlci_put(dlci[0])
In gsmtty_detach_dlci(dlci[B]), it tries to use dlci[0] which was released,
then hit panic.
=====================================================================
IMHO, n_gsm tty operations would refer released ldisc, as long as
gsm_dlci_release() has chance to release ldisc data when some gsmtty operations
are not completed..
This patch is try to avoid it by:
1) in n_gsm driver, use a global gsm spin lock to avoid gsm_dlci_release() run in
parallel with gsmtty_install();
2) Increase dlci's ref count in gsmtty_install() instead of in gsmtty_open(), the
purpose is to prevent gsm_dlci_release() releasing dlci after gsmtty_install()
allocats dlci but before gsmtty_open increases dlci's ref count;
3) Decrease dlci's ref count in gsmtty_remove(), which is a tty framework api, and
this is the opposite process of step 2).
Signed-off-by: Chao Bi <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Randy Dunlap [Thu, 7 Nov 2013 17:58:14 +0000 (09:58 -0800)]
tty/serial/8250: fix typo in help text
Commit
9326b047e4fd4a8da72e59d913214a1803e9709c includes a typo
of "8350_core" instead of "8250_core", so correct it.
Fixes kernel bugzilla #60724:
https://bugzilla.kernel.org/show_bug.cgi?id=60724
Reported-by: Christoph Biedl <bugzilla.kernel.bpeb@manchmal.in-ulm.de>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Fri, 22 Nov 2013 12:16:25 +0000 (07:16 -0500)]
n_tty: Fix 4096-byte canonical reads
Although the maximum allowable canonical line is specified to
be 255 bytes (MAX_CANON), the practical limit has actually been
the size of the line discipline read buffer (N_TTY_BUF_SIZE == 4096).
Commit
32f13521ca68bc624ff6effc77f308a52b038bf0,
n_tty: Line copy to user buffer in canonical mode, limited the
line copy to 4095 bytes. With a completely full line discipline
read buffer and a userspace buffer > 4095, _no_ data was copied,
and the read() syscall returned 0, indicating EOF.
Fix the interval arithmetic to compute the correct number of bytes
to copy to userspace in the range [1..4096].
Cc: <stable@vger.kernel.org> # 3.12.x
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Fri, 8 Nov 2013 14:42:18 +0000 (09:42 -0500)]
n_tty: Fix echo overrun tail computation
Commit
cbfd0340ae1993378fd47179db949e050e16e697,
'n_tty: Process echoes in blocks', introduced an error when
consuming the echo buffer tail to prevent buffer overrun, where
the incorrect operation code byte is checked to determine how
far to advance the tail to the next echo byte.
Check the correct byte for the echo operation code byte.
Cc: <stable@vger.kernel.org> # 3.12.x : c476f65 tty: incorrect test of echo_buf() result for ECHO_OP_START
Cc: <stable@vger.kernel.org> # 3.12.x
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Thu, 7 Nov 2013 18:59:46 +0000 (13:59 -0500)]
n_tty: Ensure reader restarts worker for next reader
A departing reader must restart a flush_to_ldisc() worker _before_
the next reader enters the read loop; this is to avoid the new reader
concluding no more i/o is available and prematurely exiting, when the
old reader simply hasn't re-started the worker yet.
Cc: stable <stable@vger.kernel.org> # 3.12
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Roberto Sassu [Fri, 8 Nov 2013 18:21:40 +0000 (19:21 +0100)]
ima: do not send field length to userspace for digest of ima template
This patch defines a new value for the 'ima_show_type' enumerator
(IMA_SHOW_BINARY_NO_FIELD_LEN) to prevent that the field length
is transmitted through the 'binary_runtime_measurements' interface
for the digest field of the 'ima' template.
Fixes commit: 3ce1217 ima: define template fields library and new helpers
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Roberto Sassu [Fri, 8 Nov 2013 18:21:39 +0000 (19:21 +0100)]
ima: do not include field length in template digest calc for ima template
To maintain compatibility with userspace tools, the field length must not
be included in the template digest calculation for the 'ima' template.
Fixes commit: a71dc65 ima: switch to new template management mechanism
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Chen Gang [Thu, 24 Jan 2013 04:14:52 +0000 (12:14 +0800)]
arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory overflow
for tmp_part->header.name:
it is "Terminating null required only for names < 12 chars".
so need to limit the %.12s for it in printk
additional info:
%12s limit the width, not for the original string output length
if name length is more than 12, it still can be fully displayed.
if name length is less than 12, the ' ' will be filled before name.
%.12s truly limit the original string output length (precision)
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Mon, 25 Nov 2013 00:12:20 +0000 (11:12 +1100)]
powerpc/signals: Improved mark VSX not saved with small contexts fix
In a recent patch:
commit
c13f20ac48328b05cd3b8c19e31ed6c132b44b42
Author: Michael Neuling <mikey@neuling.org>
powerpc/signals: Mark VSX not saved with small contexts
We fixed an issue but an improved solution was later discussed after the patch
was merged.
Firstly, this patch doesn't handle the 64bit signals case, which could also hit
this issue (but has never been reported).
Secondly, the original patch isn't clear what MSR VSX should be set to. The
new approach below always clears the MSR VSX bit (to indicate no VSX is in the
context) and sets it only in the specific case where VSX is available (ie. when
VSX has been used and the signal context passed has space to provide the
state).
This reverts the original patch and replaces it with the improved solution. It
also adds a 64 bit version.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Hari Bathini [Fri, 15 Nov 2013 17:31:32 +0000 (23:01 +0530)]
powerpc/kdump: Adding symbols in vmcoreinfo to facilitate dump filtering
When CONFIG_SPARSEMEM_VMEMMAP option is used in kernel, makedumpfile fails
to filter vmcore dump as it fails to do vmemmap translations. So far
dump filtering on ppc64 never had to deal with vmemmap addresses seperately
as vmemmap regions where mapped in zone normal. But with the inclusion of
CONFIG_SPARSEMEM_VMEMMAP config option in kernel, this vmemmap address
translation support becomes necessary for dump filtering. For vmemmap adress
translation, few kernel symbols are needed by dump filtering tool. This patch
adds those symbols to vmcoreinfo, which a dump filtering tool can use for
filtering the kernel dump. Tested this changes successfully with makedumpfile
tool that supports vmemmap to physical address translation outside zone normal.
[ Removed unneeded #ifdef as suggested by Michael Ellerman --BenH ]
Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Anton Blanchard [Thu, 21 Nov 2013 05:33:55 +0000 (16:33 +1100)]
powerpc: allyesconfig should not select CONFIG_CPU_LITTLE_ENDIAN
Stephen reported a failure in an allyesconfig build.
CONFIG_CPU_LITTLE_ENDIAN=y gets set but his toolchain is not
new enough to support little endian. We really want to
default to a big endian build; Ben suggested using a choice
which defaults to CPU_BIG_ENDIAN.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Thu, 21 Nov 2013 03:59:07 +0000 (14:59 +1100)]
powerpc: Fix error when cross building TAGS & cscope
Currently if I cross build TAGS or cscope from x86 I get this:
% make ARCH=powerpc TAGS
gcc-4.8.real: error: unrecognized command line option ‘-mbig-endian’
GEN TAGS
%
I'm not setting CROSS_COMPILE= as logically I shouldn't need to and I
haven't needed to in the past when building TAGS or cscope. Also, the
above completess correct as the error is not fatal to the build.
This was caused by:
commit
d72b08017161ab385d4ae080ea415c9eb7ceef83
Author: Ian Munsie <imunsie@au1.ibm.com>
powerpc: Add ability to build little endian kernels
The below fixes this by testing for the -mbig-endian option before
adding it.
I've not done the same thing in the little endian case as if
-mlittle-endian doesn't exist, we probably want to fail quickly as you
probably have an old big endian compiler.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Sun, 24 Nov 2013 23:04:27 +0000 (10:04 +1100)]
Merge remote-tracking branch 'scott/master' into merge
Scott wrote:
<<
The corenet64 patch fixes a regression introduced in 3.13-rc1 (commit
ef1313deafb7baa6d3382044e962d5ad5e8c8dd6, "powerpc: Add VMX optimised xor
for RAID5").
The 8xx patch fixes a regression introduced in 3.12 (commit
beb2dc0a7a84be003ce54e98b95d65cc66e6e536, "powerpc: Convert some
mftb/mftbu into mfspr").
The other two patches are fixes for minor, long standing bugs.
>>
Randy Dunlap [Sat, 23 Nov 2013 02:14:38 +0000 (18:14 -0800)]
slab.h: remove duplicate kmalloc declaration and fix kernel-doc warnings
Fix kernel-doc warning for duplicate definition of 'kmalloc':
Documentation/DocBook/kernel-api.xml:9483: element refentry: validity error : ID API-kmalloc already defined
<refentry id="API-kmalloc">
Also combine the kernel-doc info from the 2 kmalloc definitions into one
block and remove the "see kcalloc" comment since kmalloc now contains the
@flags info.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 24 Nov 2013 18:45:29 +0000 (10:45 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"A new driver for Surface 2.0/Pixelsense touchscreen and a couple of
driver fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
MAINTAINERS - add keyboard driver to Hyper-V file list
Input: atmel-wm97xx - fix compile error
Input: hp_sdc_rtc - unlock on error in hp_sdc_rtc_read_i8042timer()
Input: cyttsp4 - remove unnecessary work pending test
Input: add sur40 driver for Samsung SUR40 (aka MS Surface 2.0/Pixelsense)
Mark Brown [Sun, 24 Nov 2013 14:02:50 +0000 (14:02 +0000)]
Merge remote-tracking branch 'regulator/fix/pfuze100' into regulator-linus
Mark Brown [Sun, 24 Nov 2013 14:02:48 +0000 (14:02 +0000)]
Merge remote-tracking branch 'regulator/fix/gpio' into regulator-linus
Mark Brown [Sun, 24 Nov 2013 14:02:47 +0000 (14:02 +0000)]
Merge remote-tracking branch 'regulator/fix/fixed' into regulator-linus
Mark Brown [Sun, 24 Nov 2013 14:02:47 +0000 (14:02 +0000)]
Merge remote-tracking branch 'regulator/fix/arizona' into regulator-linus
Linus Torvalds [Sun, 24 Nov 2013 00:38:17 +0000 (16:38 -0800)]
Revert "KEYS: verify a certificate is signed by a 'trusted' key"
This reverts commit
09fbc47373826d67531380662b516de2da120545, which
caused the following build errors:
crypto/asymmetric_keys/x509_public_key.c: In function ‘x509_key_preparse’:
crypto/asymmetric_keys/x509_public_key.c:237:35: error: ‘system_trusted_keyring’ undeclared (first use in this function)
ret = x509_validate_trust(cert, system_trusted_keyring);
^
crypto/asymmetric_keys/x509_public_key.c:237:35: note: each undeclared identifier is reported only once for each function it appears in
reported by Jim Davis. Mimi says:
"I made the classic mistake of requesting this patch to be upstreamed
at the last second, rather than waiting until the next open window.
At this point, the best course would probably be to revert the two
commits and fix them for the next open window"
Reported-by: Jim Davis <jim.epost@gmail.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 24 Nov 2013 00:36:35 +0000 (16:36 -0800)]
Revert "ima: define '_ima' as a builtin 'trusted' keyring"
This reverts commit
217091dd7a7a1bdac027ddb7c5a25f6ac0b8e241, which
caused the following build error:
security/integrity/digsig.c:70:5: error: redefinition of ‘integrity_init_keyring’
security/integrity/integrity.h:149:12: note: previous definition of ‘integrity_init_keyring’ w
security/integrity/integrity.h:149:12: warning: ‘integrity_init_keyring’ defined but not used
reported by Krzysztof Kolasa. Mimi says:
"I made the classic mistake of requesting this patch to be upstreamed
at the last second, rather than waiting until the next open window.
At this point, the best course would probably be to revert the two
commits and fix them for the next open window"
Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 24 Nov 2013 00:18:25 +0000 (16:18 -0800)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
- Made x86 ablk_helper generic for ARM
- Phase out chainiv in favour of eseqiv (affects IPsec)
- Fixed aes-cbc IV corruption on s390
- Added constant-time crypto_memneq which replaces memcmp
- Fixed aes-ctr in omap-aes
- Added OMAP3 ROM RNG support
- Add PRNG support for MSM SoC's
- Add and use Job Ring API in caam
- Misc fixes
[ NOTE! This pull request was sent within the merge window, but Herbert
has some questionable email sending setup that makes him public enemy
#1 as far as gmail is concerned. So most of his emails seem to be
trapped by gmail as spam, resulting in me not seeing them. - Linus ]
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (49 commits)
crypto: s390 - Fix aes-cbc IV corruption
crypto: omap-aes - Fix CTR mode counter length
crypto: omap-sham - Add missing modalias
padata: make the sequence counter an atomic_t
crypto: caam - Modify the interface layers to use JR API's
crypto: caam - Add API's to allocate/free Job Rings
crypto: caam - Add Platform driver for Job Ring
hwrng: msm - Add PRNG support for MSM SoC's
ARM: DT: msm: Add Qualcomm's PRNG driver binding document
crypto: skcipher - Use eseqiv even on UP machines
crypto: talitos - Simplify key parsing
crypto: picoxcell - Simplify and harden key parsing
crypto: ixp4xx - Simplify and harden key parsing
crypto: authencesn - Simplify key parsing
crypto: authenc - Export key parsing helper function
crypto: mv_cesa: remove deprecated IRQF_DISABLED
hwrng: OMAP3 ROM Random Number Generator support
crypto: sha256_ssse3 - also test for BMI2
crypto: mv_cesa - Remove redundant of_match_ptr
crypto: sahara - Remove redundant of_match_ptr
...
Li Wang [Sat, 9 Nov 2013 02:26:06 +0000 (10:26 +0800)]
ceph: allocate non-zero page to fscache in readpage()
ceph_osdc_readpages() returns number of bytes read, currently,
the code only allocate full-zero page into fscache, this patch
fixes this.
Signed-off-by: Li Wang <liwang@ubuntukylin.com>
Reviewed-by: Milosz Tanski <milosz@adfin.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Yan, Zheng [Thu, 31 Oct 2013 01:10:47 +0000 (09:10 +0800)]
ceph: wake up 'safe' waiters when unregistering request
We also need to wake up 'safe' waiters if error occurs or request
aborted. Otherwise sync(2)/fsync(2) may hang forever.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Sage Weil <sage@inktank.com>
Yan, Zheng [Thu, 26 Sep 2013 06:25:36 +0000 (14:25 +0800)]
ceph: cleanup aborted requests when re-sending requests.
Aborted requests usually get cleared when the reply is received.
If MDS crashes, no reply will be received. So we need to cleanup
aborted requests when re-sending requests.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
Signed-off-by: Sage Weil <sage@inktank.com>
Yan, Zheng [Sun, 22 Sep 2013 03:08:14 +0000 (11:08 +0800)]
ceph: handle race between cap reconnect and cap release
When a cap get released while composing the cap reconnect message.
We should skip queuing the release message if the cap hasn't been
added to the cap reconnect message.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Yan, Zheng [Sun, 22 Sep 2013 02:28:10 +0000 (10:28 +0800)]
ceph: set caps count after composing cap reconnect message
It's possible that some caps get released while composing the cap
reconnect message.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Yan, Zheng [Sun, 22 Sep 2013 02:15:58 +0000 (10:15 +0800)]
ceph: queue cap release in __ceph_remove_cap()
call __queue_cap_release() in __ceph_remove_cap(), this avoids
acquiring s_cap_lock twice.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Tejun Heo [Sun, 17 Nov 2013 02:17:36 +0000 (11:17 +0900)]
sysfs: use a separate locking class for open files depending on mmap
The following two commits implemented mmap support in the regular file
path and merged bin file support into the regular path.
73d9714627ad ("sysfs: copy bin mmap support from fs/sysfs/bin.c to fs/sysfs/file.c")
3124eb1679b2 ("sysfs: merge regular and bin file handling")
After the merge, the following commands trigger a spurious lockdep
warning. "test-mmap-read" simply mmaps the file and dumps the
content.
$ cat /sys/block/sda/trace/act_mask
$ test-mmap-read /sys/devices/pci0000\:00/0000\:00\:03.0/resource0 4096
======================================================
[ INFO: possible circular locking dependency detected ]
3.12.0-work+ #378 Not tainted
-------------------------------------------------------
test-mmap-read/567 is trying to acquire lock:
(&of->mutex){+.+.+.}, at: [<
ffffffff8120a8df>] sysfs_bin_mmap+0x4f/0x120
but task is already holding lock:
(&mm->mmap_sem){++++++}, at: [<
ffffffff8114b399>] vm_mmap_pgoff+0x49/0xa0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&mm->mmap_sem){++++++}:
...
-> #2 (sr_mutex){+.+.+.}:
...
-> #1 (&bdev->bd_mutex){+.+.+.}:
...
-> #0 (&of->mutex){+.+.+.}:
...
other info that might help us debug this:
Chain exists of:
&of->mutex --> sr_mutex --> &mm->mmap_sem
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&mm->mmap_sem);
lock(sr_mutex);
lock(&mm->mmap_sem);
lock(&of->mutex);
*** DEADLOCK ***
1 lock held by test-mmap-read/567:
#0: (&mm->mmap_sem){++++++}, at: [<
ffffffff8114b399>] vm_mmap_pgoff+0x49/0xa0
stack backtrace:
CPU: 3 PID: 567 Comm: test-mmap-read Not tainted 3.12.0-work+ #378
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
ffffffff81ed41a0 ffff880009441bc8 ffffffff81611ad2 ffffffff81eccb80
ffff880009441c08 ffffffff8160f215 ffff880009441c60 ffff880009c75208
0000000000000000 ffff880009c751e0 ffff880009c75208 ffff880009c74ac0
Call Trace:
[<
ffffffff81611ad2>] dump_stack+0x4e/0x7a
[<
ffffffff8160f215>] print_circular_bug+0x2b0/0x2bf
[<
ffffffff8109ca0a>] __lock_acquire+0x1a3a/0x1e60
[<
ffffffff8109d6ba>] lock_acquire+0x9a/0x1d0
[<
ffffffff81615547>] mutex_lock_nested+0x67/0x3f0
[<
ffffffff8120a8df>] sysfs_bin_mmap+0x4f/0x120
[<
ffffffff8115d363>] mmap_region+0x3b3/0x5b0
[<
ffffffff8115d8ae>] do_mmap_pgoff+0x34e/0x3d0
[<
ffffffff8114b3ba>] vm_mmap_pgoff+0x6a/0xa0
[<
ffffffff8115be3e>] SyS_mmap_pgoff+0xbe/0x250
[<
ffffffff81008282>] SyS_mmap+0x22/0x30
[<
ffffffff8161a4d2>] system_call_fastpath+0x16/0x1b
This happens because one file nests sr_mutex, which nests mm->mmap_sem
under it, under of->mutex while mmap implementation naturally nests
of->mutex under mm->mmap_sem. The warning is false positive as
of->mutex is per open-file and the two paths belong to two different
files. This warning didn't trigger before regular and bin file
supports were merged because only bin file supported mmap and the
other side of locking happened only on regular files which used
equivalent but separate locking.
It'd be best if we give separate locking classes per file but we can't
easily do that. Let's differentiate on ->mmap() for now. Later we'll
add explicit file operations struct and can add per-ops lockdep key
there.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mika Westerberg [Wed, 20 Nov 2013 09:56:35 +0000 (11:56 +0200)]
sysfs: handle duplicate removal attempts in sysfs_remove_group()
Commit
bcdde7e221a8 (sysfs: make __sysfs_remove_dir() recursive) changed
the behavior so that directory removals will be done recursively. This
means that the sysfs group might already be removed if its parent directory
has been removed.
The current code outputs warnings similar to following log snippet when it
detects that there is no group for the given kobject:
WARNING: CPU: 0 PID: 4 at fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0()
sysfs group
ffffffff81c6f1e0 not found for kobject 'host7'
Modules linked in:
CPU: 0 PID: 4 Comm: kworker/0:0 Not tainted 3.12.0+ #13
Hardware name: /D33217CK, BIOS GKPPT10H.86A.0042.2013.0422.1439 04/22/2013
Workqueue: kacpi_hotplug acpi_hotplug_work_fn
0000000000000009 ffff8801002459b0 ffffffff817daab1 ffff8801002459f8
ffff8801002459e8 ffffffff810436b8 0000000000000000 ffffffff81c6f1e0
ffff88006d440358 ffff88006d440188 ffff88006e8b4c28 ffff880100245a48
Call Trace:
[<
ffffffff817daab1>] dump_stack+0x45/0x56
[<
ffffffff810436b8>] warn_slowpath_common+0x78/0xa0
[<
ffffffff81043727>] warn_slowpath_fmt+0x47/0x50
[<
ffffffff811ad319>] ? sysfs_get_dirent_ns+0x49/0x70
[<
ffffffff811ae526>] sysfs_remove_group+0xc6/0xd0
[<
ffffffff81432f7e>] dpm_sysfs_remove+0x3e/0x50
[<
ffffffff8142a0d0>] device_del+0x40/0x1b0
[<
ffffffff8142a24d>] device_unregister+0xd/0x20
[<
ffffffff8144131a>] scsi_remove_host+0xba/0x110
[<
ffffffff8145f526>] ata_host_detach+0xc6/0x100
[<
ffffffff8145f578>] ata_pci_remove_one+0x18/0x20
[<
ffffffff812e8f48>] pci_device_remove+0x28/0x60
[<
ffffffff8142d854>] __device_release_driver+0x64/0xd0
[<
ffffffff8142d8de>] device_release_driver+0x1e/0x30
[<
ffffffff8142d257>] bus_remove_device+0xf7/0x140
[<
ffffffff8142a1b1>] device_del+0x121/0x1b0
[<
ffffffff812e43d4>] pci_stop_bus_device+0x94/0xa0
[<
ffffffff812e437b>] pci_stop_bus_device+0x3b/0xa0
[<
ffffffff812e437b>] pci_stop_bus_device+0x3b/0xa0
[<
ffffffff812e44dd>] pci_stop_and_remove_bus_device+0xd/0x20
[<
ffffffff812fc743>] trim_stale_devices+0x73/0xe0
[<
ffffffff812fc78b>] trim_stale_devices+0xbb/0xe0
[<
ffffffff812fc78b>] trim_stale_devices+0xbb/0xe0
[<
ffffffff812fcb6e>] acpiphp_check_bridge+0x7e/0xd0
[<
ffffffff812fd90d>] hotplug_event+0xcd/0x160
[<
ffffffff812fd9c5>] hotplug_event_work+0x25/0x60
[<
ffffffff81316749>] acpi_hotplug_work_fn+0x17/0x22
[<
ffffffff8105cf3a>] process_one_work+0x17a/0x430
[<
ffffffff8105db29>] worker_thread+0x119/0x390
[<
ffffffff8105da10>] ? manage_workers.isra.25+0x2a0/0x2a0
[<
ffffffff81063a5d>] kthread+0xcd/0xf0
[<
ffffffff81063990>] ? kthread_create_on_node+0x180/0x180
[<
ffffffff817eb33c>] ret_from_fork+0x7c/0xb0
[<
ffffffff81063990>] ? kthread_create_on_node+0x180/0x180
On this particular machine I see ~16 of these message during Thunderbolt
hot-unplug.
Fix this in similar way that was done for sysfs_remove_one() by checking
if the parent directory has already been removed and bailing out early.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sat, 23 Nov 2013 00:47:28 +0000 (16:47 -0800)]
Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Pull x86 platform driver updates from Matthew Garrett:
"A moderate diffstat, but it's almost entirely just moving the
chromebook driver into its own directory in order to ease ARM support,
adding back rfkill support to the one Dell laptop model where it's
expected to work, updates to the Intel IPC driver for hardware I've
never actually seen and the usual set of small fixes"
[ This actually came in before the merge window closed, and I had just
missed it because it didn't match my git pull email pattern. - Linus ]
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (24 commits)
x86, wmi fix modalias_show return values
ipc: Added support for IPC interrupt mode
ipc: Handle error conditions in ipc command
ipc: Enabled ipc support for additional intel platforms
ipc: Added platform data structure
thinkpad_acpi: Fix build error when CONFIG_SND_MAX_CARDS > 32
platform: add chrome platform directory
hp-wmi: detect "2009 BIOS or later" flag by WMI 0x0d for wireless cmd
dell-wmi: Add KEY_MICMUTE to bios_to_linux_keycode
platform:x86: Remove OOM message after input_allocate_device
sony-laptop: fixe typos in sony_laptop_input_keycode_map
sony-laptop: warn on multiple KBD backlight handles
dell-laptop: Only enable rfkill functionality on laptops with a hw killswitch
dell-laptop: Add a force_rfkill module parameter
dell-laptop: Wait less long before updating rfkill after an rfkill keypress
dell-laptop: Do not skip setting blocked bit rfkill_set while hw-blocked
dell-laptop: Sync current block state to BIOS on hw switch change
dell-laptop: Allow changing the sw_state while the radio is blocked by hw
dell-laptop: Don't read-back sw_state on machines with a hardware switch
dell-laptop: Don't set sw_state from the query callback
...
Scott Wood [Fri, 22 Nov 2013 00:26:42 +0000 (18:26 -0600)]
powerpc/booke: Only check for hugetlb in flush if vma != NULL
And in flush_hugetlb_page(), don't check whether vma is NULL after
we've already dereferenced it.
This was found by Dan using static analysis as described here:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2013-November/113161.html
We currently get away with this because the callers that currently pass
NULL for vma seem to be 32-bit-only (e.g. highmem, and
CONFIG_DEBUG_PGALLOC in pgtable_32.c) Hugetlb is currently 64-bit only,
so we never saw a NULL vma here.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Adam Borowski [Tue, 12 Nov 2013 16:56:51 +0000 (17:56 +0100)]
powerpc/85xx: typo in dts: "interupt" (four devices)
These lines were inoperative for four years, which puts some doubt into
their importance, and it's possible the fixed version will regress, but
at the very least they should be removed instead.
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Scott Wood <scottwood@freescale.com>
LEROY Christophe [Fri, 22 Nov 2013 16:57:31 +0000 (17:57 +0100)]
powerpc/8xx: mfspr SPRN_TBRx in lieu of mftb/mftbu is not supported
Commit
beb2dc0a7a84be003ce54e98b95d65cc66e6e536 breaks the MPC8xx which
seems to not support using mfspr SPRN_TBRx instead of mftb/mftbu
despite what is written in the reference manual.
This patch reverts to the use of mftb/mftbu when CONFIG_8xx is
selected.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Tiejun Chen [Fri, 22 Nov 2013 02:49:00 +0000 (10:49 +0800)]
powerpc/corenet64: compile with CONFIG_E{5,6}500_CPU well
If CONFIG_ALTIVEC is enabled for CoreNet64, and if we also
select CONFIG_E{5,6}500_CPU this may introduce -mcpu=e500mc64
into $CFLAGS. But Altivec option not allowed with e500mc64,
then some compiling errors occur like this:
CC arch/powerpc/lib/xor_vmx.o
arch/powerpc/lib/xor_vmx.c:1:0: error: AltiVec not supported in this target
make[1]: *** [arch/powerpc/lib/xor_vmx.o] Error 1
make: *** [arch/powerpc/lib] Error 2
So we should restrict e500mc64 in altivec scenario.
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Dmitry Torokhov [Fri, 22 Nov 2013 22:33:46 +0000 (14:33 -0800)]
Merge branch 'next' into for-linus
Second round of input updates for 3.13.
Linus Torvalds [Fri, 22 Nov 2013 19:30:55 +0000 (11:30 -0800)]
Linux 3.13-rc1
Linus Torvalds [Fri, 22 Nov 2013 18:58:14 +0000 (10:58 -0800)]
Merge tag 'ecryptfs-3.13-rc1-quiet-checkers' of git://git./linux/kernel/git/tyhicks/ecryptfs
Pull minor eCryptfs fix from Tyler Hicks:
"Quiet static checkers by removing unneeded conditionals"
* tag 'ecryptfs-3.13-rc1-quiet-checkers' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: file->private_data is always valid
Linus Torvalds [Fri, 22 Nov 2013 18:57:31 +0000 (10:57 -0800)]
Merge tag 'sound-fix2-3.13-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull second set of sound fixes from Takashi Iwai:
"A collection of small fixes in HD-audio quirks and runtime PM, ASoC
rcar, abs8500 and other codecs. Most of commits are for stable
kernels, too"
* tag 'sound-fix2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Set current_headset_type to ALC_HEADSET_TYPE_ENUM (janitorial)
ALSA: hda - Provide missing pin configs for VAIO with ALC260
ALSA: hda - Add headset quirk for Dell Inspiron 3135
ALSA: hda - Fix the headphone jack detection on Sony VAIO TX
ALSA: hda - Fix missing bass speaker on ASUS N550
ALSA: hda - Fix unbalanced runtime PM notification at resume
ASoC: arizona: Set FLL to free-run before disabling
ALSA: hda - A casual Dell Headset quirk
ASoC: rcar: fixup dma_async_issue_pending() timing
ASoC: rcar: off by one in rsnd_scu_set_route()
ASoC: wm5110: Add post SYSCLK register patch for rev D chip
ASoC: ab8500: Revert to using custom I/O functions
ALSA: hda - Also enable mute/micmute LED control for "Lenovo dock" fixup
ALSA: firewire-lib: include sound/asound.h to refer to snd_pcm_format_t
ALSA: hda - Select FW_LOADER from CONFIG_SND_HDA_CODEC_CA0132_DSP
ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Realtek codec
ASoC: rcar: fixup mod access before checking
Linus Torvalds [Fri, 22 Nov 2013 18:56:11 +0000 (10:56 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull DRM fixes from Dave Airlie:
"I was going to leave this until post -rc1 but sysfs fixes broke
hotplug in userspace, so I had to fix it harder, otherwise a set of
pulls from intel, radeon and vmware,
The vmware/ttm changes are bit larger but since its early and they are
unlikely to break anything else I put them in, it lets vmware work
with dri3"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (36 commits)
drm/sysfs: fix hotplug regression since lifetime changes
drm/exynos: g2d: fix memory leak to userptr
drm/i915: Fix gen3 self-refresh watermarks
drm/ttm: Remove set_need_resched from the ttm fault handler
drm/ttm: Don't move non-existing data
drm/radeon: hook up backlight functions for CI and KV family.
drm/i915: Replicate BIOS eDP bpp clamping hack for hsw
drm/i915: Do not enable package C8 on unsupported hardware
drm/i915: Hold pc8 lock around toggling pc8.gpu_idle
drm/i915: encoder->get_config is no longer optional
drm/i915/tv: add ->get_config callback
drm/radeon/cik: Add macrotile mode array query
drm/radeon/cik: Return backend map information to userspace
drm/vmwgfx: Make vmwgfx dma buffers prime aware
drm/vmwgfx: Make surfaces prime-aware
drm/vmwgfx: Hook up the prime ioctls
drm/ttm: Add a minimal prime implementation for ttm base objects
drm/vmwgfx: Fix false lockdep warning
drm/ttm: Allow execbuf util reserves without ticket
drm/i915: restore the early forcewake cleanup
...
Linus Torvalds [Fri, 22 Nov 2013 18:53:47 +0000 (10:53 -0800)]
Merge tag 'pci-v3.13-fixes-1' of git://git./linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Miscellaneous
- Remove duplicate disable from pcie_portdrv_remove() (Yinghai Lu)
- Fix whitespace, capitalization, and spelling errors (Bjorn Helgaas)"
* tag 'pci-v3.13-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Remove duplicate pci_disable_device() from pcie_portdrv_remove()
PCI: Fix whitespace, capitalization, and spelling errors
projects / profile / ivi / kernel-x86-ivi.git / log