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2013-11-27Merge branch 'linux-linaro-lsk' into linux-linaro-lsk-androidlinux-linaro-lsk-v3.10-androidlinux-linaro-lsk-androidMark Brown
2013-11-27Merge remote-tracking branch 'lsk/v3.10/topic/tc2' into linux-linaro-lskHEADlinux-linaro-lsk-v3.10linux-linaro-lskMark Brown
2013-11-26cpufreq_stats: improve config option isolationv3.10/topic/tc2Mark Hambleton
Add missing pre-processor protection around calls to IKS APIs Signed-off-by: Mark Hambleton <mahamble@broadcom.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-11-22Merge branch 'linux-linaro-lsk' into linux-linaro-lsk-androidlsk-android-13.11Mark Brown
2013-11-22Merge remote-tracking branch 'lsk/v3.10/topic/big.LITTLE' into linux-linaro-lsklsk-13.11Mark Brown
2013-11-22sched: hmp: Fix build breakage when not using CONFIG_SCHED_HMPv3.10/topic/big.LITTLEChris Redpath
hmp_variable_scale_convert was used without guards in __update_entity_runnable_avg. Guard it. Signed-off-by: Chris Redpath <chris.redpath@arm.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-11-21Merge branch 'linux-linaro-lsk' into linux-linaro-lsk-androidlinux-linaro-lsk-android-testMark Brown
2013-11-21Merge remote-tracking branch 'lsk/v3.10/topic/big.LITTLE' into linux-linaro-lskMark Brown
2013-11-21Merge branch 'for-lsk' of git://git.linaro.org/arm/big.LITTLE/mp into ↵Mark Brown
lsk-v3.10-big.LITTLE
2013-11-21Documentation: HMP: Small Task Packing explanationChris Redpath
Signed-off-by: Chris Redpath <chris.redpath@arm.com> Signed-off-by: Jon Medhurst <tixy@linaro.org>
2013-11-21sched: hmp: add read-only hmp domain sysfs fileChris Redpath
In order to allow userspace to restrict known low-load tasks to little CPUs, we must export this knowledge from the kernel or expect userspace to make their own attempts at figuring it out. Since we now have a userspace requirement for an HMP implementation to always have at least some sysfs files, change the integration so that it only depends upon CONFIG_SCHED_HMP rather than CONFIG_HMP_VARIABLE_SCALE. Fix Kconfig text to match. Signed-off-by: Chris Redpath <chris.redpath@arm.com> Signed-off-by: Jon Medhurst <tixy@linaro.org>
2013-11-21HMP: Avoid using the cpu stopper to stop runnable tasksMathieu Poirier
When migrating a runnable task, we use the CPU stopper on the source CPU to ensure that the task to be moved is not currently running. Before this patch, all forced migrations (up, offload, idle pull) use the stopper for every migration. Using the CPU stopper is mandatory only when a task is currently running on a CPU. Otherwise tasks can be moved by locking the source and destination run queues. This patch checks to see if the task to be moved are currently running. If not the task is moved directly without using the stopper thread. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Jon Medhurst <tixy@linaro.org>
2013-11-21Merge branch 'linux-linaro-lsk' into linux-linaro-lsk-androidMark Brown
2013-11-21Merge tag 'v3.10.20' into linux-linaro-lskMark Brown
This is the 3.10.20 stable release
2013-11-20Linux 3.10.20Greg Kroah-Hartman
2013-11-20media: sh_vou: almost forever loop in sh_vou_try_fmt_vid_out()Dan Carpenter
commit 47c32ec9392a1fc7dec9d7cfde084e1432fcee82 upstream. The "i < " part of the "i < ARRAY_SIZE()" condition was missing. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> [g.liakhovetski@gmx.de: remove unrelated superfluous braces] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20usbcore: set lpm_capable field for LPM capable root hubsXenia Ragiadakou
commit 9df89d85b407690afa46ddfbccc80bec6869971d upstream. This patch sets the lpm_capable field for root hubs with LPM capabilities. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Reported-by: Martin MOKREJS <mmokrejs@gmail.com> Suggested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20usb: fail on usb_hub_create_port_device() errorsKrzysztof Mazur
commit e58547eb9561a8a72d46e2d411090a614d33ac0e upstream. Ignoring usb_hub_create_port_device() errors cause later NULL pointer deference when uninitialized hub->ports[i] entries are dereferenced after port memory allocation error. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20usb: fix cleanup after failure in hub_configure()Krzysztof Mazur
commit d0308d4b6b02597f39fc31a9bddf7bb3faad5622 upstream. If the hub_configure() fails after setting the hdev->maxchild the hub->ports might be NULL or point to uninitialized kzallocated memory causing NULL pointer dereference in hub_quiesce() during cleanup. Now after such error the hdev->maxchild is set to 0 to avoid cleanup of uninitialized ports. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20backlight: atmel-pwm-bl: fix deferred probe from __initJohan Hovold
commit 9d3fde86b15303decea632c929fbf1f3ae4501f2 upstream. Move probe out of __init section and don't use platform_driver_probe which cannot be used with deferred probing. Since commit e9354576 ("gpiolib: Defer failed gpio requests by default") this driver might return -EPROBE_DEFER if a gpio_request fails. Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Jingoo Han <jg1.han@samsung.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20misc: atmel_pwm: add deferred-probing supportJohan Hovold
commit 5c6d6fd1564138ad048564e48639f842714a90c6 upstream. Two drivers (atmel-pwm-bl and leds-atmel-pwm) currently depend on the atmel_pwm driver to have bound to any pwm-device before their devices are probed. Support deferred probing of such devices by making sure to return -EPROBE_DEFER from pwm_channel_alloc when no pwm-device has yet been bound. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20iwlwifi: pcie: add new SKUs for 7000 & 3160 NIC seriesMatti Gottlieb
commit b49926629fb5c324bb1ed3960fb0d7905a4a8562 upstream. Add some new PCI IDs to the table for 7000 & 3160 series Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20iwlwifi: add new 7260 and 3160 series device IDsOren Givon
commit 93fc64114b994f9ef6901697f9b0de00762680e9 upstream. Add new device IDs and configurations to support all the devices. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20perf: Fix perf ring buffer memory orderingPeter Zijlstra
commit bf378d341e4873ed928dc3c636252e6895a21f50 upstream. The PPC64 people noticed a missing memory barrier and crufty old comments in the perf ring buffer code. So update all the comments and add the missing barrier. When the architecture implements local_t using atomic_long_t there will be double barriers issued; but short of introducing more conditional barrier primitives this is the best we can do. Reported-by: Victor Kaplansky <victork@il.ibm.com> Tested-by: Victor Kaplansky <victork@il.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: michael@ellerman.id.au Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Michael Neuling <mikey@neuling.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: anton@samba.org Cc: benh@kernel.crashing.org Link: http://lkml.kernel.org/r/20131025173749.GG19466@laptop.lan Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20tracing: Fix potential out-of-bounds in trace_get_user()Steven Rostedt
commit 057db8488b53d5e4faa0cedb2f39d4ae75dfbdbb upstream. Andrey reported the following report: ERROR: AddressSanitizer: heap-buffer-overflow on address ffff8800359c99f3 ffff8800359c99f3 is located 0 bytes to the right of 243-byte region [ffff8800359c9900, ffff8800359c99f3) Accessed by thread T13003: #0 ffffffff810dd2da (asan_report_error+0x32a/0x440) #1 ffffffff810dc6b0 (asan_check_region+0x30/0x40) #2 ffffffff810dd4d3 (__tsan_write1+0x13/0x20) #3 ffffffff811cd19e (ftrace_regex_release+0x1be/0x260) #4 ffffffff812a1065 (__fput+0x155/0x360) #5 ffffffff812a12de (____fput+0x1e/0x30) #6 ffffffff8111708d (task_work_run+0x10d/0x140) #7 ffffffff810ea043 (do_exit+0x433/0x11f0) #8 ffffffff810eaee4 (do_group_exit+0x84/0x130) #9 ffffffff810eafb1 (SyS_exit_group+0x21/0x30) #10 ffffffff81928782 (system_call_fastpath+0x16/0x1b) Allocated by thread T5167: #0 ffffffff810dc778 (asan_slab_alloc+0x48/0xc0) #1 ffffffff8128337c (__kmalloc+0xbc/0x500) #2 ffffffff811d9d54 (trace_parser_get_init+0x34/0x90) #3 ffffffff811cd7b3 (ftrace_regex_open+0x83/0x2e0) #4 ffffffff811cda7d (ftrace_filter_open+0x2d/0x40) #5 ffffffff8129b4ff (do_dentry_open+0x32f/0x430) #6 ffffffff8129b668 (finish_open+0x68/0xa0) #7 ffffffff812b66ac (do_last+0xb8c/0x1710) #8 ffffffff812b7350 (path_openat+0x120/0xb50) #9 ffffffff812b8884 (do_filp_open+0x54/0xb0) #10 ffffffff8129d36c (do_sys_open+0x1ac/0x2c0) #11 ffffffff8129d4b7 (SyS_open+0x37/0x50) #12 ffffffff81928782 (system_call_fastpath+0x16/0x1b) Shadow bytes around the buggy address: ffff8800359c9700: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd ffff8800359c9780: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa ffff8800359c9800: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa ffff8800359c9880: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa ffff8800359c9900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>ffff8800359c9980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00[03]fb ffff8800359c9a00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa ffff8800359c9a80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa ffff8800359c9b00: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00 ffff8800359c9b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8800359c9c00: 00 00 00 00 00 00 00 00 fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap redzone: fa Heap kmalloc redzone: fb Freed heap region: fd Shadow gap: fe The out-of-bounds access happens on 'parser->buffer[parser->idx] = 0;' Although the crash happened in ftrace_regex_open() the real bug occurred in trace_get_user() where there's an incrementation to parser->idx without a check against the size. The way it is triggered is if userspace sends in 128 characters (EVENT_BUF_SIZE + 1), the loop that reads the last character stores it and then breaks out because there is no more characters. Then the last character is read to determine what to do next, and the index is incremented without checking size. Then the caller of trace_get_user() usually nulls out the last character with a zero, but since the index is equal to the size, it writes a nul character after the allocated space, which can corrupt memory. Luckily, only root user has write access to this file. Link: http://lkml.kernel.org/r/20131009222323.04fd1a0d@gandalf.local.home Reported-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20ALSA: hda - hdmi: Fix reported channel map on common default layoutsAnssi Hannula
commit 56cac413dd6d43af8355f5d1f90a199b540f73fc upstream. hdmi_setup_fake_chmap() is supposed to set the reported channel map when the channel map is not specified by the user. However, the function indexes channel_allocations[] with a wrong value and extracts the wrong nibble from hdmi_channel_mapping[], causing wrong channel maps to be shown. Fix those issues. Tested on Intel HDMI to correctly generate various channel maps, for example 3,4,14,15,7,8,5,6 (instead of incorrect 3,4,8,7,5,6,14,0) for standard 7.1 channel audio. (Note that the side and rear channels are reported as RL/RR and RLC/RRC, respectively, as per the CEA-861 standard, instead of the more traditional SL/SR and RL/RR.) Note that this only fixes the layouts that only contain traditional 7.1 speakers (2.0, 2.1, 4.0, 5.1, 7.1, etc.). E.g. the rear center of 6.1 is still being shown wrongly due to an issue with from_cea_slot() which will be fixed in a later patch. Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20USB: add new zte 3g-dongle's pid to option.cRui li
commit 0636fc507a976cdc40f21bdbcce6f0b98ff1dfe9 upstream. Signed-off-by: Rui li <li.rui27@zte.com.cn> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20hyperv-fb: add pci stubGerd Hoffmann
commit 7ad9684721606efbfb9b347346816e1e6baff8bb upstream. This patch adds a pci stub driver to hyper-fb. The hyperv framebuffer driver will bind to the pci device then, so linux kernel and userspace know there is a proper kernel driver for the device active. lspci shows this for example: [root@dhcp231 ~]# lspci -vs8 00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual VGA (prog-if 00 [VGA controller]) Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at f8000000 (32-bit, non-prefetchable) [size=64M] Expansion ROM at <unassigned> [disabled] Kernel driver in use: hyperv_fb Another effect is that the xorg vesa driver will not attach to the device and thus the Xorg server will automatically use the fbdev driver instead. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20batman-adv: set up network coding packet handlers during module initMatthias Schiffer
commit 6c519bad7b19a2c14a075b400edabaa630330123 upstream. batman-adv saves its table of packet handlers as a global state, so handlers must be set up only once (and setting them up a second time will fail). The recently-added network coding support tries to set up its handler each time a new softif is registered, which obviously fails when more that one softif is used (and in consequence, the softif creation fails). Fix this by splitting up batadv_nc_init into batadv_nc_init (which is called only once) and batadv_nc_mesh_init (which is called for each softif); in addition batadv_nc_free is renamed to batadv_nc_mesh_free to keep naming consistent. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20xen-netback: transition to CLOSED when removing a VIFDavid Vrabel
[ Upstream commit dc62ccaccfb139d9b04bbc5a2688a4402adbfab3 ] If a guest is destroyed without transitioning its frontend to CLOSED, the domain becomes a zombie as netback was not grant unmapping the shared rings. When removing a VIF, transition the backend to CLOSED so the VIF is disconnected if necessary (which will unmap the shared rings etc). This fixes a regression introduced by 279f438e36c0a70b23b86d2090aeec50155034a9 (xen-netback: Don't destroy the netdev until the vif is shut down). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Paul Durrant <Paul.Durrant@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Reviewed-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20xen-netback: Handle backend state transitions in a more robust wayPaul Durrant
[ Upstream commit ea732dff5cfa10789007bf4a5b935388a0bb2a8f ] When the frontend state changes netback now specifies its desired state to a new function, set_backend_state(), which transitions through any necessary intermediate states. This fixes an issue observed with some old Windows frontend drivers where they failed to transition through the Closing state and netback would not behave correctly. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20net/mlx4_core: Fix call to __mlx4_unregister_macJack Morgenstein
[ Upstream commit c32b7dfbb1dfb3f0a68f250deff65103c8bb704a ] In function mlx4_master_deactivate_admin_state() __mlx4_unregister_mac was called using the MAC index. It should be called with the value of the MAC itself. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20net: flow_dissector: fail on evil iph->ihlJason Wang
[ Upstream commit 6f092343855a71e03b8d209815d8c45bf3a27fcd ] We don't validate iph->ihl which may lead a dead loop if we meet a IPIP skb whose iph->ihl is zero. Fix this by failing immediately when iph->ihl is evil (less than 5). This issue were introduced by commit ec5efe7946280d1e84603389a1030ccec0a767ae (rps: support IPIP encapsulation). Signed-off-by: Jason Wang <jasowang@redhat.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Petr Matousek <pmatouse@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Daniel Borkmann <dborkman@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20virtio-net: correctly handle cpu hotplug notifier during resumingJason Wang
[ Upstream commit ec9debbd9a88d8ea86c488d6ffcac419ee7d46d9 ] commit 3ab098df35f8b98b6553edc2e40234af512ba877 (virtio-net: don't respond to cpu hotplug notifier if we're not ready) tries to bypass the cpu hotplug notifier by checking the config_enable and does nothing is it was false. So it need to try to hold the config_lock mutex which may happen in atomic environment which leads the following warnings: [ 622.944441] CPU0 attaching NULL sched-domain. [ 622.944446] CPU1 attaching NULL sched-domain. [ 622.944485] CPU0 attaching NULL sched-domain. [ 622.950795] BUG: sleeping function called from invalid context at kernel/mutex.c:616 [ 622.950796] in_atomic(): 1, irqs_disabled(): 1, pid: 10, name: migration/1 [ 622.950796] no locks held by migration/1/10. [ 622.950798] CPU: 1 PID: 10 Comm: migration/1 Not tainted 3.12.0-rc5-wl-01249-gb91e82d #317 [ 622.950799] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 622.950802] 0000000000000000 ffff88001d42dba0 ffffffff81a32f22 ffff88001bfb9c70 [ 622.950803] ffff88001d42dbb0 ffffffff810edb02 ffff88001d42dc38 ffffffff81a396ed [ 622.950805] 0000000000000046 ffff88001d42dbe8 ffffffff810e861d 0000000000000000 [ 622.950805] Call Trace: [ 622.950810] [<ffffffff81a32f22>] dump_stack+0x54/0x74 [ 622.950815] [<ffffffff810edb02>] __might_sleep+0x112/0x114 [ 622.950817] [<ffffffff81a396ed>] mutex_lock_nested+0x3c/0x3c6 [ 622.950818] [<ffffffff810e861d>] ? up+0x39/0x3e [ 622.950821] [<ffffffff8153ea7c>] ? acpi_os_signal_semaphore+0x21/0x2d [ 622.950824] [<ffffffff81565ed1>] ? acpi_ut_release_mutex+0x5e/0x62 [ 622.950828] [<ffffffff816d04ec>] virtnet_cpu_callback+0x33/0x87 [ 622.950830] [<ffffffff81a42576>] notifier_call_chain+0x3c/0x5e [ 622.950832] [<ffffffff810e86a8>] __raw_notifier_call_chain+0xe/0x10 [ 622.950835] [<ffffffff810c5556>] __cpu_notify+0x20/0x37 [ 622.950836] [<ffffffff810c5580>] cpu_notify+0x13/0x15 [ 622.950838] [<ffffffff81a237cd>] take_cpu_down+0x27/0x3a [ 622.950841] [<ffffffff81136289>] stop_machine_cpu_stop+0x93/0xf1 [ 622.950842] [<ffffffff81136167>] cpu_stopper_thread+0xa0/0x12f [ 622.950844] [<ffffffff811361f6>] ? cpu_stopper_thread+0x12f/0x12f [ 622.950847] [<ffffffff81119710>] ? lock_release_holdtime.part.7+0xa3/0xa8 [ 622.950848] [<ffffffff81135e4b>] ? cpu_stop_should_run+0x3f/0x47 [ 622.950850] [<ffffffff810ea9b0>] smpboot_thread_fn+0x1c5/0x1e3 [ 622.950852] [<ffffffff810ea7eb>] ? lg_global_unlock+0x67/0x67 [ 622.950854] [<ffffffff810e36b7>] kthread+0xd8/0xe0 [ 622.950857] [<ffffffff81a3bfad>] ? wait_for_common+0x12f/0x164 [ 622.950859] [<ffffffff810e35df>] ? kthread_create_on_node+0x124/0x124 [ 622.950861] [<ffffffff81a45ffc>] ret_from_fork+0x7c/0xb0 [ 622.950862] [<ffffffff810e35df>] ? kthread_create_on_node+0x124/0x124 [ 622.950876] smpboot: CPU 1 is now offline [ 623.194556] SMP alternatives: lockdep: fixing up alternatives [ 623.194559] smpboot: Booting Node 0 Processor 1 APIC 0x1 ... A correct fix is to unregister the hotcpu notifier during restore and register a new one in resume. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Tested-by: Fengguang Wu <fengguang.wu@intel.com> Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20xen-netback: use jiffies_64 value to calculate credit timeoutWei Liu
[ Upstream commit 059dfa6a93b779516321e5112db9d7621b1367ba ] time_after_eq() only works if the delta is < MAX_ULONG/2. For a 32bit Dom0, if netfront sends packets at a very low rate, the time between subsequent calls to tx_credit_exceeded() may exceed MAX_ULONG/2 and the test for timer_after_eq() will be incorrect. Credit will not be replenished and the guest may become unable to send packets (e.g., if prior to the long gap, all credit was exhausted). Use jiffies_64 variant to mitigate this problem for 32bit Dom0. Suggested-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Wei Liu <wei.liu2@citrix.com> Reviewed-by: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Jason Luan <jianhai.luan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20cxgb3: Fix length calculation in write_ofld_wr() on 32-bit architecturesBen Hutchings
[ Upstream commit 262e827fe745642589450ae241b7afd3912c3f25 ] The length calculation here is now invalid on 32-bit architectures, since sk_buff::tail is a pointer and sk_buff::transport_header is an integer offset: drivers/net/ethernet/chelsio/cxgb3/sge.c: In function 'write_ofld_wr': drivers/net/ethernet/chelsio/cxgb3/sge.c:1603:9: warning: passing argument 4 of 'make_sgl' makes integer from pointer without a cast [enabled by default] adap->pdev); ^ drivers/net/ethernet/chelsio/cxgb3/sge.c:964:28: note: expected 'unsigned int' but argument is of type 'sk_buff_data_t' static inline unsigned int make_sgl(const struct sk_buff *skb, ^ Use the appropriate skb accessor functions. Compile-tested only. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Fixes: 1a37e412a022 ('net: Use 16bits for *_headers fields of struct skbuff') Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20ipv6: reset dst.expires value when clearing expire flagHannes Frederic Sowa
[ Upstream commit 01ba16d6ec85a1ec4669c75513a76b61ec53ee50 ] On receiving a packet too big icmp error we update the expire value by calling rt6_update_expires. This function uses dst_set_expires which is implemented that it can only reduce the expiration value of the dst entry. If we insert new routing non-expiry information into the ipv6 fib where we already have a matching rt6_info we only clear the RTF_EXPIRES flag in rt6i_flags and leave the dst.expires value as is. When new mtu information arrives for that cached dst_entry we again call dst_set_expires. This time it won't update the dst.expire value because we left the dst.expire value intact from the last update. So dst_set_expires won't touch dst.expires. Fix this by resetting dst.expires when clearing the RTF_EXPIRE flag. dst_set_expires checks for a zero expiration and updates the dst.expires. In the past this (not updating dst.expires) was necessary because dst.expire was placed in a union with the dst_entry *from reference and rt6_clean_expires did assign NULL to it. This split happend in ecd9883724b78cc72ed92c98bcb1a46c764fff21 ("ipv6: fix race condition regarding dst->expires and dst->from"). Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com> Reported-by: Valentijn Sessink <valentyn@blub.net> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Eric Dumazet <edumazet@google.com> Tested-by: Valentijn Sessink <valentyn@blub.net> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20ipv6: ip6_dst_check needs to check for expired dst_entriesHannes Frederic Sowa
[ Upstream commit e3bc10bd95d7fcc3f2ac690c6ff22833ea6781d6 ] On receiving a packet too big icmp error we check if our current cached dst_entry in the socket is still valid. This validation check did not care about the expiration of the (cached) route. The error path I traced down: The socket receives a packet too big mtu notification. It still has a valid dst_entry and thus issues the ip6_rt_pmtu_update on this dst_entry, setting RTF_EXPIRE and updates the dst.expiration value (which could fail because of not up-to-date expiration values, see previous patch). In some seldom cases we race with a) the ip6_fib gc or b) another routing lookup which would result in a recreation of the cached rt6_info from its parent non-cached rt6_info. While copying the rt6_info we reinitialize the metrics store by copying it over from the parent thus invalidating the just installed pmtu update (both dsts use the same key to the inetpeer storage). The dst_entry with the just invalidated metrics data would just get its RTF_EXPIRES flag cleared and would continue to stay valid for the socket. We should have not issued the pmtu update on the already expired dst_entry in the first placed. By checking the expiration on the dst entry and doing a relookup in case it is out of date we close the race because we would install a new rt6_info into the fib before we issue the pmtu update, thus closing this race. Not reliably updating the dst.expire value was fixed by the patch "ipv6: reset dst.expires value when clearing expire flag". Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com> Reported-by: Valentijn Sessink <valentyn@blub.net> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Tested-by: Valentijn Sessink <valentyn@blub.net> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20ip_gre: Fix WCCPv2 header parsing.Pravin B Shelar
[ No applicable upstream commit, the upstream implementation is now completely different and doesn't have this bug. ] In case of WCCPv2 GRE header has extra four bytes. Following patch pull those extra four bytes so that skb offsets are set correctly. CC: Eric Dumazet <eric.dumazet@gmail.com> Reported-by: Peter Schmitt <peter.schmitt82@yahoo.de> Tested-by: Peter Schmitt <peter.schmitt82@yahoo.de> Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-14Merge remote-tracking branch 'lsk/v3.10/topic/android-fixes' into ↵Mark Brown
linux-linaro-lsk-android The cpufreq_interactive changes have been merged upstream and the local version dropped. Conflicts: drivers/cpufreq/cpufreq_interactive.c
2013-11-13Merge branch 'linux-linaro-lsk' into linux-linaro-lsk-androidMark Brown
2013-11-13Merge tag 'v3.10.19' into linux-linaro-lskMark Brown
This is the 3.10.19 stable release
2013-11-13Linux 3.10.19Greg Kroah-Hartman
2013-11-13NTB: Correct debugfs to work with more than 1 NTB DeviceJon Mason
commit 1517a3f21a1dd321f16bcf44204bddff9d21abd0 upstream. Debugfs was setup in NTB to only have a single debugfs directory. This resulted in the leaking of debugfs directories and files when multiple NTB devices were present, due to each device stomping on the variables containing the previous device's values (thus preventing them from being freed on cleanup). Correct this by creating a secondary directory of the PCI BDF for each device present, and nesting the previously existing information in those directories. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13NTB: Correct USD/DSD IdentificationJon Mason
commit b6750cfe0710a14fd147ba27fddbecae8ba88c77 upstream. Due to ambiguous documentation, the USD/DSD identification is backward when compared to the setting in BIOS. Correct the bits to match the BIOS setting. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13NTB: Correct Number of Scratch Pad RegistersJon Mason
commit 87034511519815259e37336f52edf06d114d43b6 upstream. The NTB Xeon hardware has 16 scratch pad registers and 16 back-to-back scratch pad registers. Correct the #define to represent this and update the variable names to reflect their usage. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13NTB: Add Error Handling in ntb_device_setupJon Mason
commit 3b12a0d15bd1559e72ad21d9d807fd2a6706f0ab upstream. If an error is encountered in ntb_device_setup, it is possible that the spci_cmd isn't populated. Writes to the offset can result in a NULL pointer dereference. This issue is easily encountered by running in NTB-RP mode, as it currently is not supported and will generate an error. To get around this issue, return if an error is encountered prior to attempting to write to the spci_cmd offset. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13seq_file: always update file->f_pos in seq_lseek()Gu Zheng
commit 05e16745c0c471bba313961b605b6da3b21a853d upstream. This issue was first pointed out by Jiaxing Wang several months ago, but no further comments: https://lkml.org/lkml/2013/6/29/41 As we know pread() does not change f_pos, so after pread(), file->f_pos and m->read_pos become different. And seq_lseek() does not update file->f_pos if offset equals to m->read_pos, so after pread() and seq_lseek()(lseek to m->read_pos), then a subsequent read may read from a wrong position, the following program produces the problem: char str1[32] = { 0 }; char str2[32] = { 0 }; int poffset = 10; int count = 20; /*open any seq file*/ int fd = open("/proc/modules", O_RDONLY); pread(fd, str1, count, poffset); printf("pread:%s\n", str1); /*seek to where m->read_pos is*/ lseek(fd, poffset+count, SEEK_SET); /*supposed to read from poffset+count, but this read from position 0*/ read(fd, str2, count); printf("read:%s\n", str2); out put: pread: ck_netbios_ns 12665 read: nf_conntrack_netbios /proc/modules: nf_conntrack_netbios_ns 12665 0 - Live 0xffffffffa038b000 nf_conntrack_broadcast 12589 1 nf_conntrack_netbios_ns, Live 0xffffffffa0386000 So we always update file->f_pos to offset in seq_lseek() to fix this issue. Signed-off-by: Jiaxing Wang <hello.wjx@gmail.com> Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Jonghwan Choi <jhbird.choi@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13drm/radeon/atom: workaround vbios bug in transmitter table on rs780Alex Deucher
commit c23632d4e57c0dd20bf50eca08fa0eb8ad3ff680 upstream. Some rs780 asics seem to be affected as well. See: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=91f3a6aaf280294b07c05dfe606e6c27b7ba3c72 Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60791 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13drm: Pad drm_mode_get_connector to 64-bit boundaryChris Wilson
commit bc5bd37ce48c66e9192ad2e7231e9678880f6f8e upstream. Pavel Roskin reported that DRM_IOCTL_MODE_GETCONNECTOR was overwritting the 4 bytes beyond the end of its structure with a 32-bit userspace running on a 64-bit kernel. This is due to the padding gcc inserts as the drm_mode_get_connector struct includes a u64 and its size is not a natural multiple of u64s. 64-bit kernel: sizeof(drm_mode_get_connector)=80, alignof=8 sizeof(drm_mode_get_encoder)=20, alignof=4 sizeof(drm_mode_modeinfo)=68, alignof=4 32-bit userspace: sizeof(drm_mode_get_connector)=76, alignof=4 sizeof(drm_mode_get_encoder)=20, alignof=4 sizeof(drm_mode_modeinfo)=68, alignof=4 Fortuituously we can insert explicit padding to the tail of our structures without breaking ABI. Reported-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@redhat.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>