- 01 Sep, 2015 22 commits
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Rafael J. Wysocki authored
* pm-cpuidle: cpuidle/coupled: Remove redundant 'dev' argument of cpuidle_state_is_coupled() cpuidle/coupled: Remove cpuidle_device::safe_state_index intel_idle: Skylake Client Support intel_idle: allow idle states to be freeze-mode specific * pm-devfreq: PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2 PM / devfreq: exynos-ppmu: Add the support of PPMUv2 for Exynos5433 PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding * pm-clk: PM / clk: don't return int on __pm_clk_enable()
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Rafael J. Wysocki authored
* pm-opp: PM / OPP: Drop unlikely before IS_ERR(_OR_NULL) PM / OPP: Fix static checker warning (broken 64bit big endian systems) PM / OPP: Free resources and properly return error on failure cpufreq-dt: make scaling_boost_freqs sysfs attr available when boost is enabled cpufreq: dt: Add support for turbo/boost mode cpufreq: dt: Add support for operating-points-v2 bindings cpufreq: Allow drivers to enable boost support after registering driver cpufreq: Update boost flag while initializing freq table from OPPs PM / OPP: add dev_pm_opp_is_turbo() helper PM / OPP: Add helpers for initializing CPU OPPs PM / OPP: Add support for opp-suspend PM / OPP: Add OPP sharing information to OPP library PM / OPP: Add clock-latency-ns support PM / OPP: Add support to parse "operating-points-v2" bindings PM / OPP: Break _opp_add_dynamic() into smaller functions PM / OPP: Allocate dev_opp from _add_device_opp() PM / OPP: Create _remove_device_opp() for freeing dev_opp PM / OPP: Relocate few routines PM / OPP: Create a directory for opp bindings PM / OPP: Update bindings to make opp-hz a 64 bit value
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Rafael J. Wysocki authored
* pm-cpufreq: (53 commits) cpufreq: speedstep-lib: Use monotonic clock cpufreq: powernv: Increase the verbosity of OCC console messages cpufreq: sfi: use kmemdup rather than duplicating its implementation cpufreq: drop !cpufreq_driver check from cpufreq_parse_governor() cpufreq: rename cpufreq_real_policy as cpufreq_user_policy cpufreq: remove redundant 'policy' field from user_policy cpufreq: remove redundant 'governor' field from user_policy cpufreq: update user_policy.* on success cpufreq: use memcpy() to copy policy cpufreq: remove redundant CPUFREQ_INCOMPATIBLE notifier event cpufreq: mediatek: Add MT8173 cpufreq driver dt-bindings: mediatek: Add MT8173 CPU DVFS clock bindings intel_pstate: append more Oracle OEM table id to vendor bypass list intel_pstate: Add SKY-S support intel_pstate: Fix possible overflow complained by Coverity cpufreq: Correct a freq check in cpufreq_set_policy() cpufreq: Lock CPU online/offline in cpufreq_register_driver() cpufreq: Replace recover_policy with new_policy in cpufreq_online() cpufreq: Separate CPU device registration from CPU online cpufreq: powernv: Restore cpu frequency to policy->cur on unthrottling ...
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Abhilash Jindal authored
Wall time obtained from do_gettimeofday is susceptible to sudden jumps due to user setting the time or due to NTP. Monotonic time is constantly increasing time better suited for comparing two timestamps. Signed-off-by: Abhilash Jindal <klock.android@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Shilpasri G Bhat authored
Modify the OCC reset/load/active event message to make it clearer for the user to understand the event and effect of the event. Suggested-by: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Andrzej Hajda authored
The patch was generated using fixed coccinelle semantic patch scripts/coccinelle/api/memdup.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2014320Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
Driver is guaranteed to be present on a call to cpufreq_parse_governor() and there is no need to check for !cpufreq_driver. Drop it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
Its all about caching min/max freq requested by userspace, and the name 'cpufreq_real_policy' doesn't fit that well. Rename it to cpufreq_user_policy. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
Its always same as policy->policy, and there is no need to keep another copy of it. Remove it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
Its always same as policy->governor, and there is no need to keep another copy of it. Remove it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
'user_policy' caches properties of a policy that are set by userspace. And these must be updated only if cpufreq core was successful in updating them based on request from user space. In store_scaling_governor(), we are updating user_policy.policy and user_policy.governor even if cpufreq_set_policy() failed. That's incorrect. Fix this by updating user_policy.* only if we were successful in updating the properties. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
cpufreq_get_policy() is useful if the pointer to policy isn't available in advance. But if it is available, then there is no need to call cpufreq_get_policy(). Directly use memcpy() to copy the policy. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
What's being done from CPUFREQ_INCOMPATIBLE, can also be done with CPUFREQ_ADJUST. There is nothing special with CPUFREQ_INCOMPATIBLE notifier. Kill CPUFREQ_INCOMPATIBLE and fix its usage sites. This also updates the numbering of notifier events to remove holes. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pi-Cheng Chen authored
Mediatek MT8173 is an ARMv8 based quad-core (2*Cortex-A53 and 2*Cortex-A72) SoC with duall clusters. For each cluster, two voltage inputs, Vproc and Vsram are supplied by two regulators. For the big cluster, two regulators come from different PMICs. In this case, when scaling voltage inputs of the cluster, the voltages of two regulator inputs need to be controlled by software explicitly under the SoC specific limitation: 100mV < Vsram - Vproc < 200mV which is called 'voltage tracking' mechanism. And when scaling the frequency of cluster clock input, the input MUX need to be parented to another "intermediate" stable PLL first and reparented to the original PLL once the original PLL is stable at the target frequency. This patch implements those mechanisms to enable CPU DVFS support for Mediatek MT8173 SoC. Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pi-Cheng Chen authored
This patch adds the clock and regulator consumer properties part of document for CPU DVFS clocks on Mediatek MT8173 SoC. Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org> Acked-by: Michael Turquette <mturquette@baylibre.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Rafael J. Wysocki authored
* device-properties: device property: check fwnode type in to_of_node() device property: attach 'else if' to the proper 'if' device property: fallback to pset when gettng one string device property: fix potential NULL pointer dereference
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Rafael J. Wysocki authored
* acpi-pci: ACPI, PCI: Penalize legacy IRQ used by ACPI SCI * acpi-soc: ACPI / LPSS: Ignore 10ms delay for Braswell * acpi-ec: ACPI / EC: Fix an issue caused by the serialized _Qxx evaluations * acpi-osl: ACPI / osl: replace custom implementation of readq / writeq
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Rafael J. Wysocki authored
* acpi-pm: ACPI / bus: Move duplicate code to a separate new function mfd: Add support for Intel Sunrisepoint LPSS devices dmaengine: add a driver for Intel integrated DMA 64-bit mfd: make mfd_remove_devices() iterate in reverse order driver core: implement device_for_each_child_reverse() klist: implement klist_prev() Driver core: wakeup the parent device before trying probe ACPI / PM: Attach ACPI power domain only once PM / QoS: Make it possible to expose device latency tolerance to userspace ACPI / PM: Update the copyright notice and description of power.c
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Rafael J. Wysocki authored
* acpi-scan: ACPI / bus: Move ACPI bus type registration ACPI / scan: Move bus operations and notification routines to bus.c ACPI / scan: Move device matching code to bus.c ACPI / scan: Move sysfs-related device code to a separate file * acpi-processor: PCC: Disable compilation by default ACPI: Decouple ACPI idle and ACPI processor drivers ACPI: Split out ACPI PSS from ACPI Processor driver PCC: Initialize PCC Mailbox earlier at boot ACPI / processor: remove leftover __refdata annotations * acpi-assorted: ACPI: fix acpi_debugfs_init prototype ACPI: Remove FSF mailing addresses
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Rafael J. Wysocki authored
* acpi-trace: ACPI / Documentation: Update method tracing documentation. ACPI / sysfs: Add support to allow leading "\" missing in trace_method_name. ACPI / sysfs: Update method tracing facility. ACPI / sysfs: Add ACPI_LV_REPAIR debug level.
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Rafael J. Wysocki authored
* acpi-tools: tools/power/acpi: Enable build for EC userspace tool tools/power/acpi: Add descend support in ACPI tools Makefile
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Rafael J. Wysocki authored
* acpica: (42 commits) ACPICA: Update version to 20150818 ACPICA: Debugger: Cleanup debugging outputs to dump name path without trailing underscores ACPICA: Disassembler: Cleanup acpi_gbl_db_opt_verbose acpiexec usage ACPICA: Disassembler: Cleanup acpi_gbl_db_opt_disasm ACPICA: Debugger: Split debugger initialization/termination APIs ACPICA: Header support to improve compatibility with MSVC ACPICA: Make the max-number-of-loops runtime configurable ACPICA: Debugger: Add option to display namespace summary/counts ACPICA: Add additional debug info/statements ACPICA: Table handling: Cleanup and update debug output for tools ACPICA: acpiexec/acpinames: Support very large number of ACPI tables ACPICA: acpinames: Add new options and wildcard support ACPICA: Headers: Fix some comments, no functional change ACPICA: Tables: Cleanup to reduce FACS globals ACPICA: Tables: Fix global table list issues by removing fixed table indexes ACPICA: Update info messages during ACPICA init ACPICA: Disassembler: Update for new listing mode ACPICA: Update parameter validation for data_table_region and load_table ACPICA: Disassembler: Remove duplicate code in _PLD processing. ACPICA: Correctly cleanup after a ACPI table load failure ...
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- 30 Aug, 2015 1 commit
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Linus Torvalds authored
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- 29 Aug, 2015 1 commit
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Javi Merino authored
Commit cf736ea6 ("thermal: power_allocator: do not use devm* interfaces") forgot to change a devm_kcalloc() to just kcalloc(), but it's corresponding devm_kfree() was changed to kfree(). Allocate with kcalloc() to match the kfree(). Fixes: cf736ea6 ("thermal: power_allocator: do not use devm* interfaces") Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 28 Aug, 2015 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds authored
Pull libata fixlet from Tejun Heo: "Simple blacklist entry addition" * 'for-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: Add factory recertified Crucial M500s to blacklist
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Here are stable fixes that have been gathered since rc8: fixes for HD-audio widget power control regressions since 4.1, a NULL fix for HD-audio HDMI, a noise fix for Conexant codecs and a quirk addition for USB-Audio DSD" * tag 'sound-fix-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - Fix path power activation ALSA: hda - Check all inputs for is_active_nid_for_any() ALSA: hda: fix possible NULL dereference ALSA: hda - Shutdown CX20722 on reboot/free to avoid spurious noises ALSA: usb: Add native DSD support for Gustard DAC-X20U
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Viresh Kumar authored
IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
Dan Carpenter reported (generated with static checker): drivers/base/power/opp.c:949 _opp_add_static_v2() warn: passing casted pointer '&new_opp->clock_latency_ns' to 'of_property_read_u32()' 64 vs 32. This code will break on 64 bit, big endian machines. Fix this by reading the value in a u32 type variable first and then assigning it to the unsigned long variable. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Suggested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Xunlei Pang authored
For cpuidle_state_is_coupled(), 'dev' is not used, so remove it. Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Xunlei Pang authored
cpuidle_device::safe_state_index need to be initialized before use, it should be the same as cpuidle_driver::safe_state_index. We tackled this issue by removing the safe_state_index from the cpuidle_device structure and use the one in the cpuidle_driver structure instead. Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
_of_init_opp_table_v2() isn't freeing up resources on some errors and the error values returned are also not correct always. This fixes following problems: - Return -ENOENT, if no entries are found in the table. - Use IS_ERR() to properly check return value of _find_device_opp(). - Return error value with PTR_ERR() in above case. - Free table if _find_device_opp() fails. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: "Fix MSI/MSI-X on pseries from Guilherme" * tag 'powerpc-4.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/PCI: Disable MSI/MSI-X interrupts at PCI probe time in OF case PCI: Make pci_msi_setup_pci_dev() non-static for use by arch code
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: "Some straggler bug fixes here: 1) Netlink_sendmsg() doesn't check iterator type properly in mmap case, from Ken-ichirou MATSUZAWA. 2) Don't sleep in atomic context in bcmgenet driver, from Florian Fainelli. 3) The pfkey_broadcast() code patch can't actually ever use anything other than GFP_ATOMIC. And the cases that right now pass GFP_KERNEL or similar will currently trigger an RCU splat. Just use GFP_ATOMIC unconditionally. From David Ahern. 4) Fix FD bit timings handling in pcan_usb driver, from Marc Kleine-Budde. 5) Cache dst leaked in ip6_gre tunnel removal, fix from Huaibin Wang. 6) Traversal into drivers/net/ethernet/renesas should be triggered by CONFIG_NET_VENDOR_RENESAS, not a particular driver's config option. From Kazuya Mizuguchi. 7) Fix regression in handling of igmp_join errors in vxlan, from Marcelo Ricardo Leitner. 8) Make phy_{read,write}_mmd_indirect() properly take the mdio_lock mutex when programming the registers. From Russell King. 9) Fix non-forced handling in u32_destroy(), from WANG Cong. 10) Test the EVENT_NO_RUNTIME_PM flag before it is cleared in usbnet_stop(), from Eugene Shatokhin. 11) In sfc driver, don't fetch statistics firmware isn't capable of, from Bert Kenward. 12) Verify ASCONF address parameter location in SCTP, from Xin Long" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: sctp: donot reset the overall_error_count in SHUTDOWN_RECEIVE state sctp: asconf's process should verify address parameter is in the beginning sfc: only use vadaptor stats if firmware is capable net: phy: fixed: propagate fixed link values to struct usbnet: Get EVENT_NO_RUNTIME_PM bit before it is cleared drivers: net: xgene: fix: Oops in linkwatch_fire_event cls_u32: complete the check for non-forced case in u32_destroy() net: fec: use reinit_completion() in mdio accessor functions net: phy: add locking to phy_read_mmd_indirect()/phy_write_mmd_indirect() vxlan: re-ignore EADDRINUSE from igmp_join net: compile renesas directory if NET_VENDOR_RENESAS is configured ip6_gre: release cached dst on tunnel removal phylib: Make PHYs children of their MDIO bus, not the bus' parent. can: pcan_usb: don't provide CAN FD bittimings by non-FD adapters net: Fix RCU splat in af_key net: bcmgenet: fix uncleaned dma flags net: bcmgenet: Avoid sleeping in bcmgenet_timeout netlink: mmap: fix tx type check
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimmLinus Torvalds authored
Pull nvdimm fixlet from Dan Williams: "This is a libnvdimm ABI fixup. I pushed back on this change quite hard given the late date, that it appears to be purely cosmetic, sysfs is not necessarily meant to be a user friendly UI, and the kernel interprets the reversed polarity of the ACPI_NFIT_MEM_ARMED flag correctly. When this flag is set, the energy source of an NVDIMM is not armed and any new writes to the DIMM may not be preserved. However, Bob Moore warned me that it is important to get these things named correctly wherever they appear otherwise we run the risk of a less than cautious firmware engineer implementing the polarity the wrong way. Once a mistake like that escapes into production platforms the flag becomes useless and we need to move to a new bit position. Bob has agreed to take a change through ACPICA to rename ACPI_NFIT_MEM_ARMED to ACPI_NFIT_MEM_NOT_ARMED, and the patch below from Toshi brings the sysfs representation of these flags in line with their respective polarities. Please pull for 4.2 as this is the first kernel to expose the ACPI NFIT sysfs representation, and this is likely a kernel that firmware developers will be using for checking out their NVDIMM enabling" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: nfit: Clarify memory device state flags strings
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lucien authored
Commit f8d96052 ("sctp: Enforce retransmission limit during shutdown") fixed a problem with excessive retransmissions in the SHUTDOWN_PENDING by not resetting the association overall_error_count. This allowed the association to better enforce assoc.max_retrans limit. However, the same issue still exists when the association is in SHUTDOWN_RECEIVED state. In this state, HB-ACKs will continue to reset the overall_error_count for the association would extend the lifetime of association unnecessarily. This patch solves this by resetting the overall_error_count whenever the current state is small then SCTP_STATE_SHUTDOWN_PENDING. As a small side-effect, we end up also handling SCTP_STATE_SHUTDOWN_ACK_SENT and SCTP_STATE_SHUTDOWN_SENT states, but they are not really impacted because we disable Heartbeats in those states. Fixes: Commit f8d96052 ("sctp: Enforce retransmission limit during shutdown") Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 27 Aug, 2015 5 commits
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lucien authored
in sctp_process_asconf(), we get address parameter from the beginning of the addip params. but we never check if it's really there. if the addr param is not there, it still can pass sctp_verify_asconf(), then to be handled by sctp_process_asconf(), it will not be safe. so add a code in sctp_verify_asconf() to check the address parameter is in the beginning, or return false to send abort. note that this can also detect multiple address parameters, and reject it. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Toshi Kani authored
ACPI 6.0 NFIT Memory Device State Flags in Table 5-129 defines NVDIMM status as follows. These bits indicate multiple info, such as failures, pending event, and capability. Bit [0] set to 1 to indicate that the previous SAVE to the Memory Device failed. Bit [1] set to 1 to indicate that the last RESTORE from the Memory Device failed. Bit [2] set to 1 to indicate that platform flush of data to Memory Device failed. As a result, the restored data content may be inconsistent even if SAVE and RESTORE do not indicate failure. Bit [3] set to 1 to indicate that the Memory Device is observed to be not armed prior to OSPM hand off. A Memory Device is considered armed if it is able to accept persistent writes. Bit [4] set to 1 to indicate that the Memory Device observed SMART and health events prior to OSPM handoff. /sys/bus/nd/devices/nmemX/nfit/flags shows this flags info. The output strings associated with the bits are "save", "restore", "smart", etc., which can be confusing as they may be interpreted as positive status, i.e. save succeeded. Change also the dev_info() message in acpi_nfit_register_dimms() to be consistent with the sysfs flags strings. Reported-by: Robert Elliott <elliott@hp.com> Signed-off-by: Toshi Kani <toshi.kani@hp.com> [ross: rename 'not_arm' to 'not_armed'] Cc: Ross Zwisler <ross.zwisler@linux.intel.com> [djbw: defer adding bit5, HEALTH_ENABLED, for now] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Bert Kenward authored
Some of the stats handling code differs based on SR-IOV support, and SRIOV support is only available if full-featured firmware is used. Do not use vadaptor stats if firmware mode is not set to full-featured. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Madalin Bucur authored
The fixed link values parsed from the device tree are stored in the struct fixed_phy member status. The struct phy_device members speed, duplex were not updated. Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull amr64 kvm fix from Will Deacon: "We've uncovered a nasty bug in the arm64 KVM code which allows a badly behaved 32-bit guest to bring down the host. The fix is simple (it's what I believe we call a "brown paper bag" bug) and I don't think it makes sense to sit on this, particularly as Russell ended up triggering this rather than just somebody noticing a potential problem by inspection. Usually arm64 KVM changes would go via Paolo's tree, but he's on holiday at the moment and the deal is that anything urgent gets shuffled via the arch trees, so here it is. Summary: Fix arm64 KVM issue when injecting an abort into a 32-bit guest, which would lead to an illegal exception return at EL2 and a subsequent host crash" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: KVM: Fix host crash when injecting a fault into a 32bit guest
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