- 11 Jun, 2015 2 commits
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Nikolay Aleksandrov authored
Since the addition of sysfs multicast router support if one set multicast_router to "2" more than once, then the port would be added to the hlist every time and could end up linking to itself and thus causing an endless loop for rlist walkers. So to reproduce just do: echo 2 > multicast_router; echo 2 > multicast_router; in a bridge port and let some igmp traffic flow, for me it hangs up in br_multicast_flood(). Fix this by adding a check in br_multicast_add_router() if the port is already linked. The reason this didn't happen before the addition of multicast_router sysfs entries is because there's a !hlist_unhashed check that prevents it. Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org> Fixes: 0909e117 ("bridge: Add multicast_router sysfs entries") Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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Erik Hugne authored
If the TIPC connection timer expires in a probing state, a self abort message is supposed to be generated and delivered to the local socket. This is currently broken, and the abort message is actually sent out to the peer node with invalid addressing information. This will cause the link to enter a constant retransmission state and eventually reset. We fix this by removing the self-abort message creation and tear down connection immediately instead. Signed-off-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 10 Jun, 2015 1 commit
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David S. Miller authored
This reverts commit 0243508e. It introduces new regressions. Signed-off-by: David S. Miller <davem@davemloft.net>
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- 09 Jun, 2015 2 commits
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Johannes Berg authored
Until recently, mac80211 overwrote all the statistics it could provide when getting called, but it now relies on the struct having been zeroed by the caller. This was always the case in nl80211, but wext used a static struct which could even cause values from one device leak to another. Using a static struct is OK (as even documented in a comment) since the whole usage of this function and its return value is always locked under RTNL. Not clearing the struct for calling the driver has always been wrong though, since drivers were free to only fill values they could report, so calling this for one device and then for another would always have leaked values from one to the other. Fix this by initializing the structure in question before the driver method call. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=99691 Cc: stable@vger.kernel.org Reported-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Reported-by: Alexander Kaltsas <alexkaltsas@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Fix stack allocation in s390 BPF JIT, from Michael Holzheu. 2) Disable LRO on openvswitch paths, from Jiri Benc. 3) UDP early demux doesn't handle multicast group membership properly, fix from Shawn Bohrer. 4) Fix TX queue hang due to incorrect handling of mixed sized fragments and linearlization in i40e driver, from Anjali Singhai Jain. 5) Cannot use disable_irq() in timer handler of AMD xgbe driver, from Thomas Lendacky. 6) b2net driver improperly assumes pci_alloc_consistent() gives zero'd out memory, use dma_zalloc_coherent(). From Sriharsha Basavapatna. 7) Fix use-after-free in MPLS and ipv6, from Robert Shearman. 8) Missing neif_napi_del() calls in cleanup paths of b44 driver, from Hauke Mehrtens. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: net: replace last open coded skb_orphan_frags with function call net: bcmgenet: power on MII block for all MII modes ipv6: Fix protocol resubmission ipv6: fix possible use after free of dev stats b44: call netif_napi_del() bridge: disable softirqs around br_fdb_update to avoid lockup Revert "bridge: use _bh spinlock variant for br_fdb_update to avoid lockup" mpls: fix possible use after free of device be2net: Replace dma/pci_alloc_coherent() calls with dma_zalloc_coherent() bridge: use _bh spinlock variant for br_fdb_update to avoid lockup amd-xgbe: Use disable_irq_nosync from within timer function rhashtable: add missing import <linux/export.h> i40e: Make sure to be in VEB mode if SRIOV is enabled at probe i40e: start up in VEPA mode by default i40e/i40evf: Fix mixed size frags and linearization ipv4/udp: Verify multicast group is ours in upd_v4_early_demux() openvswitch: disable LRO s390/bpf: fix bpf frame pointer setup s390/bpf: fix stack allocation
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- 08 Jun, 2015 15 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull last-minute virtio fix from Michael Tsirkin: "This fixes a minor issue affecting multiqueue virtio net when user keeps changing the number of active queues and CPUs are added and removed by hotplug" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio_pci: Clear stale cpumask when setting irq affinity
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Kevin Hilman: "About 10 days worth of small bug fixes, and the (hopefully) final round fixes for from arm-soc land for the -rc cycle. Nothing special to note, but here's a brief summary of fixes by SoC type: - OMAP: small set of misc DT fixes; boot fix for THUMB2 kernel - mediatek: PMIC fixes; DT fix for model name - exynos: wakeup interupt fixes for 3250 - mvebu: revert mbus patch which broke DMA masters * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: dts: am335x-boneblack: disable RTC-only sleep to avoid hardware damage ARM: dts: AM35xx: fix system control module clocks arm64: dts: mt8173-evb: fix model name ARM: exynos: Fix wake-up interrupts for Exynos3250 ARM: dts: Fix n900 dts file to work around 4.1 touchscreen regression on n900 ARM: dts: Fix dm816x to use right compatible flag for MUSB ARM: OMAP3: Fix booting with thumb2 kernel Revert "bus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus bridge window" bus: mvebu-mbus: do not set WIN_CTRL_SYNCBARRIER on non io-coherent platforms. ARM: mvebu: armada-xp-linksys-mamba: Disable internal RTC soc: mediatek: Add compile dependency to pmic-wrapper soc: mediatek: PMIC wrap: Fix register state machine handling soc: mediatek: PMIC wrap: Fix clock rate handling
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Willem de Bruijn authored
Commit 70008aa5 ("skbuff: convert to skb_orphan_frags") replaced open coded tests of SKBTX_DEV_ZEROCOPY and skb_copy_ubufs with calls to helper function skb_orphan_frags. Apply that to the last remaining open coded site. Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Florian Fainelli authored
The RGMII block is currently only powered on when using RGMII or RGMII_NO_ID, which is not correct when using the GENET interface in MII or Reverse MII modes. We always need to power on the RGMII interface for this block to properly work, regardless of the MII mode in which we operate. Fixes: aa09677c ("net: bcmgenet: add MDIO routines") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Josh Hunt authored
UDP encapsulation is broken on IPv6. This is because the logic to resubmit the nexthdr is inverted, checking for a ret value > 0 instead of < 0. Also, the resubmit label is in the wrong position since we already get the nexthdr value when performing decapsulation. In addition the skb pull is no longer necessary either. This changes the return value check to look for < 0, using it for the nexthdr on the next iteration, and moves the resubmit label to the proper location. With these changes the v6 code now matches what we do in the v4 ip input code wrt resubmitting when decapsulating. Signed-off-by: Josh Hunt <johunt@akamai.com> Acked-by: "Tom Herbert" <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Robert Shearman authored
The memory pointed to by idev->stats.icmpv6msgdev, idev->stats.icmpv6dev and idev->stats.ipv6 can each be used in an RCU read context without taking a reference on idev. For example, through IP6_*_STATS_* calls in ip6_rcv. These memory blocks are freed without waiting for an RCU grace period to elapse. This could lead to the memory being written to after it has been freed. Fix this by using call_rcu to free the memory used for stats, as well as idev after an RCU grace period has elapsed. Signed-off-by: Robert Shearman <rshearma@brocade.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Kevin Hilman authored
Merge tag 'omap-for-v4.1/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Merge omap fixes for v4.1, urgent fix to avoid potential hardware damage From Tony Lindgren: Omap fixes for the -rc cycle, including a fix for potential hardware breakage on BeagleBones: - BeagleBones don't support RTC-only mode, it can cause hardware damage if system-power-controller is specified without ti,pmic-shutdown-controller - Fix a recent regression to am3517 SoCs caused by the recent clock move that was not noticed until now despite automated boot testing - Fix a regression for n900 touchscreen triggered by recent recent input changes - Fix compatible property for dm816x USB to avoid errors with USB Ethernet - Fix oops for omap3 when built with CONFIG_THUMB2_KERNEL * tag 'omap-for-v4.1/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: am335x-boneblack: disable RTC-only sleep to avoid hardware damage ARM: dts: AM35xx: fix system control module clocks ARM: dts: Fix n900 dts file to work around 4.1 touchscreen regression on n900 ARM: dts: Fix dm816x to use right compatible flag for MUSB ARM: OMAP3: Fix booting with thumb2 kernel
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git://git.infradead.org/intel-iommuLinus Torvalds authored
Pull Intel IOMMU fix from David Woodhouse: "This fixes an oops when attempting to enable 1:1 passthrough mode for devices on which VT-d translation was disabled anyway. It's actually a long-standing bug but recent changes (commit 18436afd: "iommu/vt-d: Allow RMRR on graphics devices too") have made it much easier to trigger with 'iommu=pt intel_iommu=igfx_off' on the command line" * git://git.infradead.org/intel-iommu: iommu/vt-d: Fix passthrough mode with translation-disabled devices
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds authored
Pull libata fixes from Tejun Heo: "Two driver fixes. One is for an ahci_mvebu controller config bug and the other fixes pata_octeon_cf build issue" * 'for-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: pata_octeon_cf: fix broken build ata: ahci_mvebu: Fix wrongly set base address for the MBus window setting
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Aaro Koskinen authored
MODULE_DEVICE_TABLE is referring to wrong driver's table and breaks the build. Fix that. Cc: stable@vger.kernel.org Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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Linus Torvalds authored
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Hauke Mehrtens authored
When the driver gets unregistered a call to netif_napi_del() was missing, this all was also missing in the error paths of b44_init_one(). Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nikolay Aleksandrov authored
br_fdb_update() can be called in process context in the following way: br_fdb_add() -> __br_fdb_add() -> br_fdb_update() (if NTF_USE flag is set) so we need to disable softirqs because there are softirq users of the hash_lock. One easy way to reproduce this is to modify the bridge utility to set NTF_USE, enable stp and then set maxageing to a low value so br_fdb_cleanup() is called frequently and then just add new entries in a loop. This happens because br_fdb_cleanup() is called from timer/softirq context. The spin locks in br_fdb_update were _bh before commit f8ae737d ("[BRIDGE]: forwarding remove unneeded preempt and bh diasables") and at the time that commit was correct because br_fdb_update() couldn't be called from process context, but that changed after commit: 292d1398 ("bridge: add NTF_USE support") Using local_bh_disable/enable around br_fdb_update() allows us to keep using the spin_lock/unlock in br_fdb_update for the fast-path. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Fixes: 292d1398 ("bridge: add NTF_USE support") Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
This reverts commit 1d7c4903. Nikolay Aleksandrov has a better version of this fix. Signed-off-by: David S. Miller <davem@davemloft.net>
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Robert Shearman authored
The mpls device is used in an RCU read context without a lock being held. As the memory is freed without waiting for the RCU grace period to elapse, the freed memory could still be in use. Address this by using kfree_rcu to free the memory for the mpls device after the RCU grace period has elapsed. Fixes: 03c57747 ("mpls: Per-device MPLS state") Signed-off-by: Robert Shearman <rshearma@brocade.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 07 Jun, 2015 10 commits
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS updates from Ralf Baechle: "Eight fixes across arch/mips. Nothing stands particuarly out nor is complicated but fixes keep coming in at a higher than comfortable rate" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: KVM: Do not sign extend on unsigned MMIO load MIPS: BPF: Fix stack pointer allocation MIPS: Loongson-3: Fix a cpu-hotplug issue in loongson3_ipi_interrupt() MIPS: Fix enabling of DEBUG_STACKOVERFLOW MIPS: c-r4k: Fix typo in probe_scache() MIPS: Avoid an FPE exception in FCSR mask probing MIPS: ath79: Add a missing new line in log message MIPS: ralink: Fix clearing the illegal access interrupt
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Sriharsha Basavapatna authored
There are several places in the driver (all in control paths) where coherent dma memory is being allocated using either dma_alloc_coherent() or the deprecated pci_alloc_consistent(). All these calls should be changed to use dma_zalloc_coherent() to avoid uninitialized fields in data structures backed by this memory. Reported-by: Joerg Roedel <jroedel@suse.de> Tested-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@avagotech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Wilson Kok authored
br_fdb_update() can be called in process context in the following way: br_fdb_add() -> __br_fdb_add() -> br_fdb_update() (if NTF_USE flag is set) so we need to use spin_lock_bh because there are softirq users of the hash_lock. One easy way to reproduce this is to modify the bridge utility to set NTF_USE, enable stp and then set maxageing to a low value so br_fdb_cleanup() is called frequently and then just add new entries in a loop. This happens because br_fdb_cleanup() is called from timer/softirq context. These locks were _bh before commit f8ae737d ("[BRIDGE]: forwarding remove unneeded preempt and bh diasables") and at the time that commit was correct because br_fdb_update() couldn't be called from process context, but that changed after commit: 292d1398 ("bridge: add NTF_USE support") Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com> Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Fixes: 292d1398 ("bridge: add NTF_USE support") Signed-off-by: David S. Miller <davem@davemloft.net>
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Lendacky, Thomas authored
Since the Tx timer function runs in softirq context the driver needs to call disable_irq_nosync instead of a disable_irq. Reported-by: Josh Stone <jistone@redhat.com> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Hauke Mehrtens authored
rhashtable uses EXPORT_SYMBOL_GPL() without importing linux/export.h directly it is only imported indirectly through some other includes. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds authored
Pull driver core fixes from Greg KH: "Here are two fixes for the driver core that resolve some reported issues. One is a regression from 4.0, the other a fixes a reported oops that has been there since 3.19. Both have been in linux-next for a while with no problems" * tag 'driver-core-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: drivers/base: cacheinfo: handle absence of caches drivers: of/base: move of_init to driver_init
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging / IIO fixes from Greg KH: "Here are some IIO driver fixes to resolve reported issues, some ozwpan fixes for some reported CVE problems, and a rtl8712 driver fix for a reported regression. All have been in linux-next successfully" * tag 'staging-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: rtl8712: fix stack dump ozwpan: unchecked signed subtraction leads to DoS ozwpan: divide-by-zero leading to panic ozwpan: Use unsigned ints to prevent heap overflow ozwpan: Use proper check to prevent heap overflow iio: adc: twl6030-gpadc: Fix modalias iio: adis16400: Fix burst transfer for adis16448 iio: adis16400: Fix burst mode iio: adis16400: Compute the scan mask from channel indices iio: adis16400: Use != channel indices for the two voltage channels iio: adis16400: Report pressure channel scale
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial driver fixes from Greg KH: "Here are a few TTY and Serial driver fixes for reported regressions and crashes. All of these have been in linux-next with no reported problems" * tag 'tty-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: n_tty: Fix auditing support for cannonical mode serial: 8250_omap: provide complete custom startup & shutdown callbacks n_tty: Fix calculation of size in canon_copy_from_read_buf serial: imx: Fix DMA handling for IDLE condition aborts serial/amba-pl011: Unconditionally poll for FIFO space before each TX char
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB and PHY driver fixes from Greg KH: "Here are some USB and PHY driver fixes that resolve some reported regressions. Also in here are some new device ids. All of the details are in the shortlog and these patches have been in linux-next with no problems" * tag 'usb-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits) USB: cp210x: add ID for HubZ dual ZigBee and Z-Wave dongle usb: renesas_usbhs: Don't disable the pipe if Control write status stage usb: renesas_usbhs: Fix fifo unclear in usbhsf_prepare_pop usb: gadget: f_fs: fix check in read operation usb: musb: fix order of conditions for assigning end point operations usb: gadget: f_uac1: check return code from config_ep_by_speed usb: gadget: ffs: fix: Always call ffs_closed() in ffs_data_clear() usb: gadget: g_ffs: Fix counting of missing_functions usb: s3c2410_udc: correct reversed pullup logic usb: dwc3: gadget: Fix incorrect DEPCMD and DGCMD status macros usb: phy: tahvo: Pass the IRQF_ONESHOT flag usb: phy: ab8500-usb: Pass the IRQF_ONESHOT flag usb: renesas_usbhs: Revise the binding document about the dma-names usb: host: xhci: add mutex for non-thread-safe data usb: make module xhci_hcd removable USB: serial: ftdi_sio: Add support for a Motion Tracker Development Board usb: gadget: f_midi: fix segfault when reading empty id phy: phy-rcar-gen2: Fix USBHS_UGSTS_LOCK value phy: omap-usb2: invoke pm_runtime_disable on error path phy: fix Kconfig dependencies ...
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git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linuxLinus Torvalds authored
Pull devicetree fix from Grant Likely: "Stupid typo fix for v4.1. One of the IS_ENABLED() macro calls forgot the CONFIG_ prefix. Only affects a tiny number of platforms, but still..." * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: of/dynamic: Fix test for PPC_PSERIES
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- 06 Jun, 2015 10 commits
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "i915 has a bunch of fixes, and Russell found a bug in sysfs writing handling that results in userspace getting stuck" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm: fix writing to /sys/class/drm/*/status drm/i915: Move WaBarrierPerformanceFixDisable:skl to skl code from chv code drm/i915: Include G4X/VLV/CHV in self refresh status drm/i915: Initialize HWS page address after GPU reset drm/i915: Don't skip request retirement if the active list is empty drm/i915/hsw: Fix workaround for server AUX channel clock divisor
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input subsystem fixes from Dmitry Torokhov: "Just a couple touchpad drivers fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: alps - do not reduce trackpoint speed by half Input: elantech - add new icbody type Input: elantech - fix detection of touchpads where the revision matches a known rate
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlbLinus Torvalds authored
Pull swiotlb fix from Konrad Rzeszutek Wilk: "Tiny little fix which just converts an function to be static. Really tiny" * 'stable/for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb: swiotlb: do not export map_single function
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibftLinus Torvalds authored
Pull iBFT fix from Konrad Rzeszutek Wilk: "One single fix from Chris to workaround UEFI platforms failing with iSCSI IBFT" * 'stable/for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: iscsi_ibft: filter null v4-mapped v6 addresses
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Nicholas Mc Guire authored
Fix possible unintended sign extension in unsigned MMIO loads by casting to uint16_t in the case of mmio_needed != 2. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: James Hogan <james.hogan@imgtec.com> Tested-by: James Hogan <james.hogan@imgtec.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9985/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Markos Chandras authored
Fix stack pointer offset which could potentially corrupt argument registers in the previous frame. The calculated offset reflects the size of all the registers we need to preserve so there is no need for this erroneous subtraction. [ralf@linux-mips.org: Fixed conflict due to only applying this fix part of the entire series as part of 4.1 fixes.] Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: netdev@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/10527/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Huacai Chen authored
setup_per_cpu_areas() only setup __per_cpu_offset[] for each possible cpu, but loongson_sysconf.nr_cpus can be greater than possible cpus (due to reserved_cpus_mask). So in loongson3_ipi_interrupt(), percpu access will touch the original varible in .data..percpu section which has been freed. Without this patch, cpu-hotplug will cause memery corruption. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/10524/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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James Hogan authored
Commit 334c86c4 ("MIPS: IRQ: Add stackoverflow detection") added kernel stack overflow detection, however it only enabled it conditional upon the preprocessor definition DEBUG_STACKOVERFLOW, which is never actually defined. The Kconfig option is called DEBUG_STACKOVERFLOW, which manifests to the preprocessor as CONFIG_DEBUG_STACKOVERFLOW, so switch it to using that definition instead. Fixes: 334c86c4 ("MIPS: IRQ: Add stackoverflow detection") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Adam Jiang <jiang.adam@gmail.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 2.6.37+ Patchwork: http://patchwork.linux-mips.org/patch/10531/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Joshua Kinard authored
Fixes a typo in arch/mips/mm/c-r4k.c's probe_scache(). Signed-off-by: Joshua Kinard <kumba@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queueDavid S. Miller authored
Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2015-06-04 This series contains updates to i40e and i40evf. Anjali provides three fixes, first to resolve a Tx queue hang if mixed size frags are passed to the driver while using TSO. There was a corner case where we needed to linearize but we were not. Next fixes a bug in the default configuration which prevented a software bridge loaded on the PF interface from working correctly because broadcast packets are incorrectly looped back. Lastly fixes an NPAR bug when SRIOV is enabled, where we need to be in VEB mode, not VEPA mode at probe. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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