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2015-03-17Merge tag 'virtio-next-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull virtio fixes from Rusty Russell: "Not entirely surprising: the ongoing QEMU work on virtio 1.0 has revealed more minor issues with our virtio 1.0 drivers just introduced in the kernel. (I would normally use my fixes branch for this, but there were a batch of them...)" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: virtio_mmio: fix access width for mmio uapi/virtio_scsi: allow overriding CDB/SENSE size virtio_mmio: generation support virtio_rpmsg: set DRIVER_OK before using device 9p/trans_virtio: fix hot-unplug virtio-balloon: do not call blocking ops when !TASK_RUNNING virtio_blk: fix comment for virtio 1.0 virtio_blk: typo fix virtio_balloon: set DRIVER_OK before using device virtio_console: avoid config access from irq virtio_console: init work unconditionally
2015-03-17Merge git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Marcelo Tosatti: "KVM bug fixes (ARM and x86)" * git://git.kernel.org/pub/scm/virt/kvm/kvm: arm/arm64: KVM: Keep elrsr/aisr in sync with software model KVM: VMX: Set msr bitmap correctly if vcpu is in guest mode arm/arm64: KVM: fix missing unlock on error in kvm_vgic_create() kvm: x86: i8259: return initialized data on invalid-size read arm64: KVM: Fix outdated comment about VTCR_EL2.PS arm64: KVM: Do not use pgd_index to index stage-2 pgd arm64: KVM: Fix stage-2 PGD allocation to have per-page refcounting kvm: move advertising of KVM_CAP_IRQFD to common code
2015-03-17Bluetooth: Move generic mgmt command dispatcher to hci_sock.cJohan Hedberg
The mgmt.c file should be reserved purely for HCI_CHANNEL_CONTROL. The mgmt_control() function in it is already completely generic and has a single user in hci_sock.c. This patch moves the function there and renames it a bit more appropriately to hci_mgmt_cmd() (as it's a command dispatcher). Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-03-17Bluetooth: Add hdev_init callback for HCI channelsJohan Hedberg
In order to make the mgmt command handling more generic we can't have a direct call to mgmt_init_hdev() from mgmt_control(). This patch adds a new callback to struct hci_mgmt_chan. And sets it to point to the mgmt_init_hdev() function for the HCI_CHANNEL_CONTROL instance. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-03-17Bluetooth: Add generic mgmt helper APIJohan Hedberg
There are several mgmt protocol features that will be needed by more than just the current HCI_CHANNEL_CONTROL. These include sending generic events as well as handling pending commands. This patch moves these functions out from mgmt.c to a new mgmt_util.c file. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-03-17Bluetooth: Add channel parameter to mgmt_pending_find() APIJohan Hedberg
To be able to have pending commands for different HCI channels we need to be able to distinguish for which channel a command was sent to. The channel information is already part of the socket data and can be fetched using the recently added hci_sock_get_channel() function. To not require all mgmt.c code to pass an extra channel parameter this patch also adds a helper pending_find() & pending_find_data() functions which act as a wrapper to the new mgmt_pending_find() & mgmt_pending_find_data() APIs. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-03-17Bluetooth: Add helper to get HCI channel of a socketJohan Hedberg
We'll need to have access to which HCI channel a socket is bound to, in order to manage pending mgmt commands in clean way. This patch adds a helper for the purpose. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-03-17pagemap: do not leak physical addresses to non-privileged userspaceKirill A. Shutemov
As pointed by recent post[1] on exploiting DRAM physical imperfection, /proc/PID/pagemap exposes sensitive information which can be used to do attacks. This disallows anybody without CAP_SYS_ADMIN to read the pagemap. [1] http://googleprojectzero.blogspot.com/2015/03/exploiting-dram-rowhammer-bug-to-gain.html [ Eventually we might want to do anything more finegrained, but for now this is the simple model. - Linus ] Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Acked-by: Andy Lutomirski <luto@amacapital.net> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Seaborn <mseaborn@chromium.org> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-03-17Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_CSRJakub Pawlowski
CSR controllers can do both LE scan and BR/EDR inquiry at once. Signed-off-by: Jakub Pawlowski <jpawlowski@google.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_INTELJakub Pawlowski
Intel controllers can do both LE scan and BR/EDR inquiry at once. Signed-off-by: Jakub Pawlowski <jpawlowski@google.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_ATH3012Jakub Pawlowski
Atheros controllers can do both LE scan and BR/EDR inquiry at once. Signed-off-by: Jakub Pawlowski <jpawlowski@google.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17Bluetooth: Add simultaneous dual mode scanJakub Pawlowski
When doing scan through mgmt api, some controllers can do both le and classic scan at same time. They can be distinguished by HCI_QUIRK_SIMULTANEOUS_DISCOVERY set. This patch enables them to use this feature when doing dual mode scan. Instead of doing le, then classic scan, both scans are run at once. Signed-off-by: Jakub Pawlowski <jpawlowski@google.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17Bluetooth: Refactor BR/EDR inquiry and LE scan triggering.Jakub Pawlowski
This patch refactor BR/EDR inquiry and LE scan triggering logic into separate methods. Signed-off-by: Jakub Pawlowski <jpawlowski@google.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17Bluetooth: Introduce HCI_QUIRK_SIMULTANEOUS_DISCOVERYJakub Pawlowski
Some controllers allow both LE scan and BR/EDR inquiry to run at the same time, while others allow only one, LE SCAN or BR/EDR inquiry at given time. Since this is specific to each controller, add a new quirk setting that allows drivers to tell the core wether given controller can do both LE scan and BR/EDR inquiry at same time. Signed-off-by: Jakub Pawlowski <jpawlowski@google.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17fs: add dirtytime_expire_seconds sysctlTheodore Ts'o
Add a tuning knob so we can adjust the dirtytime expiration timeout, which is very useful for testing lazytime. Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
2015-03-17fs: make sure the timestamps for lazytime inodes eventually get writtenTheodore Ts'o
Jan Kara pointed out that if there is an inode which is constantly getting dirtied with I_DIRTY_PAGES, an inode with an updated timestamp will never be written since inode->dirtied_when is constantly getting updated. We fix this by adding an extra field to the inode, dirtied_time_when, so inodes with a stale dirtytime can get detected and handled. In addition, if we have a dirtytime inode caused by an atime update, and there is no write activity on the file system, we need to have a secondary system to make sure these inodes get written out. We do this by setting up a second delayed work structure which wakes up the CPU much more rarely compared to writeback_expire_centisecs. Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
2015-03-17at86rf230: fix at86rf230_read_subreg succeed handlingAlexander Aring
This patch fix an issue when at86rf230_read_subreg was successful. The function at86rf230_read_subreg will directly call regmap_read which returns zero on successful. Nobody figured out issues yet because it was only necessary to evaluate dvdd state while probing. This could make trouble because the stack variable could have an random value. The function is also used by reset the irq line before requesting irq, but the value isn't evaluated afterwards. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-03-17Merge tag 'asoc-fix-v4.0-rc4' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v4.0 As well as the usual collection of driver specific fixes there's a few more generic things: - Lots of fixes from Takashi for drivers using the wrong field in the control union to communicate with userspace, leading to potential errors on 64 bit systems. - A fix from Lars for locking of the lists of devices we maintain, mostly only likely to trigger during device probe and removal.
2015-03-17Btrfs: prepare block group cache before writingJosef Bacik
Writing the block group cache will modify the extent tree quite a bit because it truncates the old space cache and pre-allocates new stuff. To try and cut down on the churn lets do the setup dance first, then later on hopefully we can avoid looping with newly dirtied roots. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com>
2015-03-17netfilter: nf_tables: allow to change chain policy without hook if it existsPablo Neira Ayuso
If there's an existing base chain, we have to allow to change the default policy without indicating the hook information. However, if the chain doesn't exists, we have to enforce the presence of the hook attribute. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-03-17regulator: palmas: Correct TPS659038 register definition for REGEN2Keerthy
The register offset for REGEN2_CTRL in different for TPS659038 chip as when compared with other Palmas family PMICs. In the case of TPS659038 the wrong offset pointed to PLLEN_CTRL and was causing a hang. Correcting the same. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2015-03-17mac80211: Get IV len from key conf and not cipher schemeCedric Izoard
When a key is installed using a cipher scheme, set a new internal key flag (KEY_FLAG_CIPHER_SCHEME) on it, to allow distinguishing such keys more easily. In particular, use this flag on the TX path instead of testing the sta->cipher_scheme pointer, as the station is NULL for broad-/multicast message, and use the key's iv_len instead of the cipher scheme information. Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com> [add missing documentation, rewrite commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-17mac80211: IBSS: refactor ieee80211_rx_bss_infoJanusz.Dziedzic@tieto.com
Put station specific code in ieee80211_update_sta_info function. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-17mac80211: minstrel_ht: fix rounding issue in MCS duration calculationFelix Fietkau
On very high MCS bitrates, the calculated duration of rates that are next to each other can be very imprecise, due to the small packet size used as reference (1200 bytes). This is most visible in VHT80 nss=2 MCS8/9, for which minstrel shows the same throughput when the probability is also the same. This leads to a bad rate selection for such rates. Fix this issue by introducing an average A-MPDU size factor into the calculation. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-17cfg80211: Process all pending regulatory requests/hintsBen
It is possible that there are several regulatory requests pending, but the processing of the last one does not call CRDA, and thus the other requests are not handled. Fix this by rescheduling the work until all requests have been processed. Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com> Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-17mac80211: initialize rate control earlier for tdls stationMarek Puzyniak
Currently when TDLS station in driver goes from authenticated to associated state it can not use rate control parameters because rate control is not initialized yet. Some drivers require parameters already initialized by rate control when entering associated state. It can be done by initializing rate control after station transition to associated state but before notifying driver about that. Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com> Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> [fix comment to say 'associated' instead of 'authorized'] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-17livepatch: Fix subtle race with coming and going modulesPetr Mladek
There is a notifier that handles live patches for coming and going modules. It takes klp_mutex lock to avoid races with coming and going patches but it does not keep the lock all the time. Therefore the following races are possible: 1. The notifier is called sometime in STATE_MODULE_COMING. The module is visible by find_module() in this state all the time. It means that new patch can be registered and enabled even before the notifier is called. It might create wrong order of stacked patches, see below for an example. 2. New patch could still see the module in the GOING state even after the notifier has been called. It will try to initialize the related object structures but the module could disappear at any time. There will stay mess in the structures. It might even cause an invalid memory access. This patch solves the problem by adding a boolean variable into struct module. The value is true after the coming and before the going handler is called. New patches need to be applied when the value is true and they need to ignore the module when the value is false. Note that we need to know state of all modules on the system. The races are related to new patches. Therefore we do not know what modules will get patched. Also note that we could not simply ignore going modules. The code from the module could be called even in the GOING state until mod->exit() finishes. If we start supporting patches with semantic changes between function calls, we need to apply new patches to any still usable code. See below for an example. Finally note that the patch solves only the situation when a new patch is registered. There are no such problems when the patch is being removed. It does not matter who disable the patch first, whether the normal disable_patch() or the module notifier. There is nothing to do once the patch is disabled. Alternative solutions: ====================== + reject new patches when a patched module is coming or going; this is ugly + wait with adding new patch until the module leaves the COMING and GOING states; this might be dangerous and complicated; we would need to release kgr_lock in the middle of the patch registration to avoid a deadlock with the coming and going handlers; also we might need a waitqueue for each module which seems to be even bigger overhead than the boolean + stop modules from entering COMING and GOING states; wait until modules leave these states when they are already there; looks complicated; we would need to ignore the module that asked to stop the others to avoid a deadlock; also it is unclear what to do when two modules asked to stop others and both are in COMING state (situation when two new patches are applied) + always register/enable new patches and fix up the potential mess (registered patches order) in klp_module_init(); this is nasty and prone to regressions in the future development + add another MODULE_STATE where the kallsyms are visible but the module is not used yet; this looks too complex; the module states are checked on "many" locations Example of patch stacking breakage: =================================== The notifier could _not_ _simply_ ignore already initialized module objects. For example, let's have three patches (P1, P2, P3) for functions a() and b() where a() is from vmcore and b() is from a module M. Something like: a() b() P1 a1() b1() P2 a2() b2() P3 a3() b3(3) If you load the module M after all patches are registered and enabled. The ftrace ops for function a() and b() has listed the functions in this order: ops_a->func_stack -> list(a3,a2,a1) ops_b->func_stack -> list(b3,b2,b1) , so the pointer to b3() is the first and will be used. Then you might have the following scenario. Let's start with state when patches P1 and P2 are registered and enabled but the module M is not loaded. Then ftrace ops for b() does not exist. Then we get into the following race: CPU0 CPU1 load_module(M) complete_formation() mod->state = MODULE_STATE_COMING; mutex_unlock(&module_mutex); klp_register_patch(P3); klp_enable_patch(P3); # STATE 1 klp_module_notify(M) klp_module_notify_coming(P1); klp_module_notify_coming(P2); klp_module_notify_coming(P3); # STATE 2 The ftrace ops for a() and b() then looks: STATE1: ops_a->func_stack -> list(a3,a2,a1); ops_b->func_stack -> list(b3); STATE2: ops_a->func_stack -> list(a3,a2,a1); ops_b->func_stack -> list(b2,b1,b3); therefore, b2() is used for the module but a3() is used for vmcore because they were the last added. Example of the race with going modules: ======================================= CPU0 CPU1 delete_module() #SYSCALL try_stop_module() mod->state = MODULE_STATE_GOING; mutex_unlock(&module_mutex); klp_register_patch() klp_enable_patch() #save place to switch universe b() # from module that is going a() # from core (patched) mod->exit(); Note that the function b() can be called until we call mod->exit(). If we do not apply patch against b() because it is in MODULE_STATE_GOING, it will call patched a() with modified semantic and things might get wrong. [jpoimboe@redhat.com: use one boolean instead of two] Signed-off-by: Petr Mladek <pmladek@suse.cz> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-03-17Bluetooth: btusb: Fix minor whitespace issue in QCA ROME device entriesMarcel Holtmann
Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17Bluetooth: Add support for Local OOB Extended Data Update eventsMarcel Holtmann
When a different user requests a new set of local out-of-band data, then inform all previous users that the data has been updated. To limit the scope of users, the updates are limited to previous users. If a user has never requested out-of-band data, it will also not see the update. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17Bluetooth: Fix length for Read Local OOB Extended Data respone packetMarcel Holtmann
The length of the respone packet for Read Local OOB Extended Data command has a calculation error. In case LE Secure Connections support is not enabled, the actual response is shorter. Keep this in mind and update the value accordingly. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-03-17virtio_mmio: fix access width for mmioMichael S. Tsirkin
Going over the virtio mmio code, I noticed that it doesn't correctly access modern device config values using "natural" accessors: it uses readb to get/set them byte by byte, while the virtio 1.0 spec explicitly states: 4.2.2.2 Driver Requirements: MMIO Device Register Layout ... The driver MUST only use 32 bit wide and aligned reads and writes to access the control registers described in table 4.1. For the device-specific configuration space, the driver MUST use 8 bit wide accesses for 8 bit wide fields, 16 bit wide and aligned accesses for 16 bit wide fields and 32 bit wide and aligned accesses for 32 and 64 bit wide fields. Borrow code from virtio_pci_modern to do this correctly. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-03-17Merge branch 'linux-4.0' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes nouveau fixes, and gm206 modesetting enables. * 'linux-4.0' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nouveau/bios: fix i2c table parsing for dcb 4.1 drm/nouveau/device/gm100: Basic GM206 bring up (as copy of GM204) drm/nouveau/device: post write to NV_PMC_BOOT_1 when flipping endian switch drm/nouveau/gr/gf100: fix some accidental or'ing of buffer addresses drm/nouveau/fifo/nv04: remove the loop from the interrupt handler
2015-03-17drm/nouveau/bios: fix i2c table parsing for dcb 4.1Stefan Huehner
Code before looked only at bit 31 to decide if a port is unused. However dcb 4.1 spec says 0x1F in bits 31-27 and 26-22 means unused. This fixed hdmi monitor detection on GM206. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-03-17drm/nouveau/device/gm100: Basic GM206 bring up (as copy of GM204)Stefan Huehner
Enough to get VGA monitor on DVI-I output have output. HDMI output not yet working Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-03-17drm/nouveau/device: post write to NV_PMC_BOOT_1 when flipping endian switchBen Skeggs
fdo#88868 Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-03-17drm/nouveau/gr/gf100: fix some accidental or'ing of buffer addressesBen Skeggs
fdo#83992 Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-03-17drm/nouveau/fifo/nv04: remove the loop from the interrupt handlerBen Skeggs
Complete bong hit (and not the last...), the hardware will reassert the interrupt to PMC if it's necessary. Also potentially harmful in the face of interrupts such as the non-stall interrupt, which remain active in NV_PFIFO_INTR even when we don't care about servicing it. It appears (hopefully, fdo#87244), that under certain loads, the methods may pass quickly enough to hit the "100 spins and kill PFIFO" thing that we had going on. Not ideal ;) Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-03-16Merge tag 'kvm-arm-fixes-4.0-rc5' of ↵Marcelo Tosatti
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm Fixes for KVM/ARM for 4.0-rc5. Fixes page refcounting issues in our Stage-2 page table management code, fixes a missing unlock in a gicv3 error path, and fixes a race that can cause lost interrupts if signals are pending just prior to entering the guest.
2015-03-16ARM: OMAP2+: Fix socbus family info for AM33xx devicesSuman Anna
The family information in the soc-bus data is currently not classified properly for AM33xx devices, and a read of /sys/bus/soc/devices/soc0/family currently shows "Unknown". Fix the same. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-03-16ARM: dts: omap3: Add missing dmas for cryptoPali Rohár
This patch adds missing dma DTS definitions for omap aes and sham drivers. Without it kernel drivers do not work for device tree based booting while it works for legacy booting on general purpose SoCs. Note that further changes are still needed for high secure SoCs. But since that never worked in legacy boot mode either, those will be sent separately. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-03-16drm/radeon: Changing number of compute pipe linesBen Goz
The current CP firmware can handle Usermode Queues only on MEC1. To reflect this firmware change, this commit reduces number of compute pipelines to 4 - 1, from 8 - 1 (the first pipeline is allocated for kgd). Signed-off-by: Ben Goz <ben.goz@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@amd.com> Cc: stable@vger.kernel.org
2015-03-16drm/amdkfd: Fix SDMA queue init. in non-HWS modeBen Goz
This patch fixes the SDMA queue initialization, when running in non-HWS mode. The first fix is to move the initialization of SDMA VM parameters before the initialization of the SDMA MQD. The second fix is to load the MQD to an HQD after the initialization of the MQD. Signed-off-by: Ben Goz <ben.goz@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-03-16drm/amdkfd: destroy mqd when destroying kernel queueBen Goz
This patch adds a missing destruction of mqd, when destroying a kernel queue. Without the destruction, there is a memory leakage when repeatedly creating and destroying kernel queues. Signed-off-by: Ben Goz <ben.goz@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2015-03-16rhashtable: Avoid calculating hash again to unlockThomas Graf
Caching the lock pointer avoids having to hash on the object again to unlock the bucket locks. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-16bnx2x: fix encapsulation features on 57710/57711Michal Schmidt
E1x chips (57710, 57711(E)) have no support for encapsulation offload. bnx2x incorrectly advertises the support as available. Setting of those features is conditional on "!CHIP_IS_E1x(bp)", but the bp struct is not initialized yet at this point and consequently any chip passes the check. The check must use the "chip_is_e1x" local variable instead to work correctly. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-16LZ4 : fix the data abort issueJeHyeon Yeon
If the part of the compression data are corrupted, or the compression data is totally fake, the memory access over the limit is possible. This is the log from my system usning lz4 decompression. [6502]data abort, halting [6503]r0 0x00000000 r1 0x00000000 r2 0xdcea0ffc r3 0xdcea0ffc [6509]r4 0xb9ab0bfd r5 0xdcea0ffc r6 0xdcea0ff8 r7 0xdce80000 [6515]r8 0x00000000 r9 0x00000000 r10 0x00000000 r11 0xb9a98000 [6522]r12 0xdcea1000 usp 0x00000000 ulr 0x00000000 pc 0x820149bc [6528]spsr 0x400001f3 and the memory addresses of some variables at the moment are ref:0xdcea0ffc, op:0xdcea0ffc, oend:0xdcea1000 As you can see, COPYLENGH is 8bytes, so @ref and @op can access the momory over @oend. Signed-off-by: JeHyeon Yeon <tom.yeon@windriver.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-16kernfs: handle poll correctly on 'direct_read' files.NeilBrown
Kernfs supports two styles of read: direct_read and seqfile_read. The latter supports 'poll' correctly thanks to the update of '->event' in kernfs_seq_show. The former does not as '->event' is never updated on a read. So add an appropriate update in kernfs_file_direct_read(). This was noticed because some 'md' sysfs attributes were recently changed to use direct reads. Reported-by: Prakash Punnoor <prakash@punnoor.de> Reported-by: Torsten Kaiser <just.for.lkml@googlemail.com> Fixes: 750f199ee8b578062341e6ddfe36c59ac8ff2dcb Signed-off-by: NeilBrown <neilb@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-16tcp_metrics: fix wrong lockdep annotationsEric Dumazet
Changes in tcp_metric hash table are protected by tcp_metrics_lock only, not by genl_mutex While we are at it use deref_locked() instead of rcu_dereference() in tcp_new() to avoid unnecessary barrier, as we hold tcp_metrics_lock as well. Reported-by: Andrew Vagin <avagin@parallels.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Fixes: 098a697b497e ("tcp_metrics: Use a single hash table for all network namespaces.") Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-16dsa: change "select" to "depends on" for NET_SWITCHDEV and for NET_DSAJiri Pirko
This would fix randconfig compile error: net/built-in.o: In function `netdev_switch_fib_ipv4_abort': (.text+0xf7811): undefined reference to `fib_flush_external' Also it fixes following warnings: warning: (NET_DSA) selects NET_SWITCHDEV which has unmet direct dependencies (NET && INET) warning: (NET_DSA_MV88E6060 && NET_DSA_MV88E6131 && NET_DSA_MV88E6123_61_65 && NET_DSA_MV88E6171 && NET_DSA_MV88E6352 && NET_DSA_BCM_SF2) selects NET_DSA which has unmet direct dependencies (NET && HAVE_NET_DSA && NET_SWITCHDEV) Reported-by: Randy Dunlap <rdunlap@infradead.org> Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-16net/fsl: modify xgmac_mdio for little endian SoCsShaohui Xie
MDIO controller on little endian Socs, e.g. ls2085a is similar to the controller on big endian Socs, but the MDIO access is little endian, we use I/O accessor function to handle endianness, so the driver can run on little endian Socs. A property "little-endian" is used in DTS to indicate the MDIO is little endian, if driver probes the property, driver will access MDIO in little endian, otherwise, driver works in big endian by default. Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>