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2016-02-25genirq: Add ipi_offset to irq_common_dataQais Yousef
IPIs are always assumed to be consecutively allocated, hence virqs and hwirqs can be inferred by using CPU id as an offset. But the first cpu doesn't always have to start at offset 0. ipi_offset stores the position of the first cpu so that we can easily calculate the virq or hwirq of an IPI associated with a specific cpu. Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Cc: <jason@lakedaemon.net> Cc: <marc.zyngier@arm.com> Cc: <jiang.liu@linux.intel.com> Cc: <ralf@linux-mips.org> Cc: <linux-mips@linux-mips.org> Cc: <lisa.parratt@imgtec.com> Cc: Qais Yousef <qsyousef@gmail.com> Link: http://lkml.kernel.org/r/1449580830-23652-6-git-send-email-qais.yousef@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-02-25genirq: Add an extra comment about the use of affinity in irq_common_dataQais Yousef
Affinity will have dual meaning depends on the type of the irq. If it is a normal irq, it'll have the standard affinity meaning. If it is an IPI, it will hold the mask of the cpus to which an IPI can be sent. Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Cc: <jason@lakedaemon.net> Cc: <marc.zyngier@arm.com> Cc: <jiang.liu@linux.intel.com> Cc: <ralf@linux-mips.org> Cc: <linux-mips@linux-mips.org> Cc: <lisa.parratt@imgtec.com> Cc: Qais Yousef <qsyousef@gmail.com> Link: http://lkml.kernel.org/r/1449580830-23652-7-git-send-email-qais.yousef@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-02-25genirq: Add DOMAIN_BUS_IPIQais Yousef
We need a way to search and match IPI domains. Using the new enum we can use irq_find_matching_host() to do that. Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Cc: <jason@lakedaemon.net> Cc: <marc.zyngier@arm.com> Cc: <jiang.liu@linux.intel.com> Cc: <ralf@linux-mips.org> Cc: <linux-mips@linux-mips.org> Cc: <lisa.parratt@imgtec.com> Cc: Qais Yousef <qsyousef@gmail.com> Link: http://lkml.kernel.org/r/1449580830-23652-3-git-send-email-qais.yousef@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-02-25genirq: Add new IPI irqdomain flagsQais Yousef
These flags will be used to identify an IPI domain. We have two flavours of IPI implementations: IRQ_DOMAIN_FLAG_IPI_PER_CPU: Each CPU has its own virq and hwirq IRQ_DOMAIN_FLAG_IPI_SINGLE : A single virq and hwirq for all CPUs Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Cc: <jason@lakedaemon.net> Cc: <marc.zyngier@arm.com> Cc: <jiang.liu@linux.intel.com> Cc: <ralf@linux-mips.org> Cc: <linux-mips@linux-mips.org> Cc: <lisa.parratt@imgtec.com> Cc: Qais Yousef <qsyousef@gmail.com> Link: http://lkml.kernel.org/r/1449580830-23652-2-git-send-email-qais.yousef@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-02-25Merge branch 'x86/debug' into core/objtool, to pick up frame pointer fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-02-25perf: Fix race between event install and jump_labelsPeter Zijlstra
perf_install_in_context() relies upon the context switch hooks to have scheduled in events when the IPI misses its target -- after all, if the task has moved from the CPU (or wasn't running at all), it will have to context switch to run elsewhere. This however doesn't appear to be happening. It is possible for the IPI to not happen (task wasn't running) only to later observe the task running with an inactive context. The only possible explanation is that the context switch hooks are not called. Therefore put in a sync_sched() after toggling the jump_label to guarantee all CPUs will have them enabled before we install an event. A simple if (0->1) sync_sched() will not in fact work, because any further increment can race and complete before the sync_sched(). Therefore we must jump through some hoops. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: dvyukov@google.com Cc: eranian@google.com Cc: oleg@redhat.com Cc: panand@redhat.com Cc: sasha.levin@oracle.com Cc: vince@deater.net Link: http://lkml.kernel.org/r/20160224174947.980211985@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-02-25perf: Fix cloningPeter Zijlstra
Alexander reported that when the 'original' context gets destroyed, no new clones happen. This can happen irrespective of the ctx switch optimization, any task can die, even the parent, and we want to continue monitoring the task hierarchy until we either close the event or no tasks are left in the hierarchy. perf_event_init_context() will attempt to pin the 'parent' context during clone(). At that point current is the parent, and since current cannot have exited while executing clone(), its context cannot have passed through perf_event_exit_task_context(). Therefore perf_pin_task_context() cannot observe ctx->task == TASK_TOMBSTONE. However, since inherit_event() does: if (parent_event->parent) parent_event = parent_event->parent; it looks at the 'original' event when it does: is_orphaned_event(). This can return true if the context that contains the this event has passed through perf_event_exit_task_context(). And thus we'll fail to clone the perf context. Fix this by adding a new state: STATE_DEAD, which is set by perf_release() to indicate that the filedesc (or kernel reference) is dead and there are no observers for our data left. Only for STATE_DEAD will is_orphaned_event() be true and inhibit cloning. STATE_EXIT is otherwise preserved such that is_event_hup() remains functional and will report when the observed task hierarchy becomes empty. Reported-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Tested-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: dvyukov@google.com Cc: eranian@google.com Cc: oleg@redhat.com Cc: panand@redhat.com Cc: sasha.levin@oracle.com Cc: vince@deater.net Fixes: c6e5b73242d2 ("perf: Synchronously clean up child events") Link: http://lkml.kernel.org/r/20160224174947.919845295@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-02-24Merge tag 'reset-for-4.6' of git://git.pengutronix.de/git/pza/linux into ↵Olof Johansson
next/drivers Reset controller changes for v4.6 - add support for the imgtec Pistachio SoC reset controller - make struct reset_control_ops const - move DT cell size check into the core to avoid code duplication in the drivers * tag 'reset-for-4.6' of git://git.pengutronix.de/git/pza/linux: reset: sti: Make reset_control_ops const reset: zynq: Make reset_control_ops const reset: socfpga: Make reset_control_ops const reset: hi6220: Make reset_control_ops const reset: ath79: Make reset_control_ops const reset: lpc18xx: Make reset_control_ops const reset: sunxi: Make reset_control_ops const reset: img: Make reset_control_ops const reset: berlin: Make reset_control_ops const reset: berlin: drop DT cell size check reset: img: Add Pistachio reset controller driver reset: img: Add pistachio reset controller binding document reset: hisilicon: check return value of reset_controller_register() reset: Move DT cell size check to the core reset: Make reset_control_ops const reset: remove unnecessary local variable initialization from of_reset_control_get_by_index Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-24Merge tag 'at91-ab-4.6-drivers' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/drivers From Alexandre Belloni: "This is a rework of the PMC driver. It touches multiple subsystems so the easiest path is through arm-soc." drivers update for 4.6: - Big PMC rework that touches clk, PM, usb * tag 'at91-ab-4.6-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: clk: at91: remove useless includes clk: at91: pmc: remove useless capacities handling clk: at91: pmc: drop at91_pmc_base usb: gadget: atmel: access the PMC using regmap ARM: at91: remove useless includes and function prototypes ARM: at91: pm: move idle functions to pm.c ARM: at91: pm: find and remap the pmc ARM: at91: pm: simply call at91_pm_init clk: at91: pmc: move pmc structures to C file clk: at91: pmc: merge at91_pmc_init in atmel_pmc_probe clk: at91: remove IRQ handling and use polling clk: at91: make use of syscon/regmap internally clk: at91: make use of syscon to share PMC registers in several drivers Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-25ARM: EXYNOS: Move pmu specific headers under "linux/soc/samsung"Pankaj Dubey
Moving Exynos PMU specific header file into "include/linux/soc/samsung" thus updated affected files under "mach-exynos" to use new location of these header files. Signed-off-by: Amit Daniel Kachhap <amitdanielk@gmail.com> [tested on Peach-Pi (Exynos5880)] Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> [for testing on Trats2 (Exynos4412) and Odroid XU3 (Exynos5422)] Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-02-24Merge tag 'scpi-for-v4.6/updates' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into next/drivers SCPI updates and fixes for v4.6 1. Minor fix to restore functionality in big-endian mode 2. Fix race by decreasing Tx timeout to 20ms 3. Adds support for 64-bit sensor values and energy meter * tag 'scpi-for-v4.6/updates' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: hwmon: (scpi) add energy meter support firmware: arm_scpi: add support for 64-bit sensor values firmware: arm_scpi: decrease Tx timeout to 20ms firmware: arm_scpi: fix send_message and sensor_get_value for big-endian Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-24Merge tag 'renesas-dt-for-v4.6' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt Renesas ARM Based SoC DT Updates for v4.6 * Use SCIF and USBHS fallback compatibility strings * Add Baud Rate Generator (BRG) support for (H)SCIF * Enable SCIF_CLK frequency and pins * Use GIC_* defines * Enable audio on r8a7793/gose * Enable HDMI vidio out on r8a7793 * Enable i2c on r8a7793/gose * Enable QSPI on alt * Enable GPIO keys and leds on gise * Enable audio on porter * Enable DU on porter * tag 'renesas-dt-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (68 commits) ARM: dts: silk: Enable SCIF_CLK frequency and pins ARM: dts: porter: Enable SCIF_CLK frequency and pins ARM: dts: marzen: Enable SCIF_CLK frequency and pins ARM: dts: lager: Enable SCIF_CLK frequency and pins ARM: dts: koelsch: Enable SCIF_CLK frequency and pins ARM: dts: gose: Enable SCIF_CLK frequency and pins ARM: dts: bockw: Enable SCIF_CLK frequency and pins ARM: dts: alt: Enable SCIF_CLK frequency and pins ARM: dts: r8a7794: Add BRG support for (H)SCIF ARM: dts: r8a7793: Add BRG support for SCIF ARM: dts: r8a7791: Add BRG support for (H)SCIF ARM: dts: r8a7790: Add BRG support for (H)SCIF ARM: dts: r8a7779: Add BRG support for SCIF ARM: dts: r8a7778: Add BRG support for SCIF ARM: dts: r8a7794: Rename the serial port clock to fck ARM: dts: r8a7793: Rename the serial port clock to fck ARM: dts: r8a7791: Rename the serial port clock to fck ARM: dts: r8a7790: Rename the serial port clock to fck ARM: dts: r8a7779: Rename the serial port clock to fck ARM: dts: r8a7778: Rename the serial port clock to fck ... Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-24Merge tag 'mac80211-for-davem-2016-02-23' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== Another small set of fixes: * stop critical protocol session on disconnect to avoid it getting stuck * wext: fix two RTNL message ordering issues * fix an uninitialized value (found by KASAN) * fix an out-of-bounds access (also found by KASAN) * clear connection keys when freeing them in all cases (IBSS, all other places already did so) * fix expected throughput unit to get consistent values * set default TX aggregation timeout to 0 in minstrel to avoid (really just hide) issues and perform better ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24Merge tag 'v4.6-rockchip-dts32-1' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt Assorted bunch of 32bit Rockchip devicetree changes. More clocks, nodes and fixes like the increased drive-strength on the firefly. Most interesting is maybe the enablement of the pl330 option for handling the broken flushp operation that is present on the current Rockchip SoCs. Together with the driver-side enablement this should give us working dma finally. * tag 'v4.6-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: (30 commits) ARM: dts: cros-ec-keyboard: Add LOCK key to keyboard matrix ARM: dts: rockchip: replace gpio-key,wakeup with wakeup-source property ARM: dts: rockchip: add arm,pl330-broken-no-flushp quirk for rk3036 SoCs ARM: dts: rockchip: Add arm, pl330-broken-no-flushp quirk for rk3xxx platform ARM: dts: rockchip: Add arm, pl330-broken-no-flushp quirk for rk3288 platform dt-bindings: rockchip-dw-mshc: add RK3036 dw-mshc description ARM: dts: rockchip: increase the mclk_fs to 512 for kylin board ARM: dts: rockchip: support the spi for rk3036 ARM: dts: rockchip: add mclk for rt5616 on rk3036 kylin board ARM: dts: rockchip: add the leds control for rk3036-kylin board ARM: dts: rockchip: add tsadc node clk: rockchip: Add new id for rk3066 tsadc clock ARM: dts: rockchip: add clock-cells for usb phy nodes ARM: dts: rockchip: Assign RK3288 EDP_24M input centrally ARM: dts: rockchip: add soc-specific compatibles for rk3036 SoCs ARM: dts: rockchip: Bump sd card pin drive strength up on firefly boards dt-bindings: rockchip-dw-mshc: add RK3368 dw-mshc description ARM: dts: rockchip: Add the SDIO wifi on Radxa Rock2 square ARM: dts: rockchip: Add the iodomains for the Rock2 SOM ARM: dts: rockchip: add rk3288 mipi_dsi nodes ... Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-24Merge tag 'v4.6-rockchip-drivers1' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers Support for the power-domains on rk3368 and a fix for a wrong handling of for_each_available_child_of_node. * tag 'v4.6-rockchip-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: soc: rockchip: power-domain: fix err handle while probing soc: rockchip: power-domain: Modify power domain driver for rk3368 dt-bindings: modify document of Rockchip power domains dt-bindings: add power-domain header for RK3368 SoCs Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-24Merge tag 'stm32-dt-for-v4.6-1' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32 into next/dt Highlights: ----------- - Add DMA controller node to stm32f429 MCU - Add pinctrl & gpio nodes to stm32f429 MCU - Remap stm32429-eval board SD-Ram to 0x0 for performance boost * tag 'stm32-dt-for-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32: ARM: dts: stm32f429: Boost perfs by remapping SDRAM Bank 1 to 0x0 ARM: dts: Add leds support to STM32F429 boards ARM: dts: Add USART1 pin config to STM32F429 boards ARM: dts: Add pinctrl node to STM32F429 includes: dt-bindings: Add STM32F429 pinctrl DT bindings ARM: dts: Add STM32 DMA support for STM32F429 MCU Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-24bpf: fix csum setting for bpf_set_tunnel_keyDaniel Borkmann
The fix in 35e2d1152b22 ("tunnels: Allow IPv6 UDP checksums to be correctly controlled.") changed behavior for bpf_set_tunnel_key() when in use with IPv6 and thus uncovered a bug that TUNNEL_CSUM needed to be set but wasn't. As a result, the stack dropped ingress vxlan IPv6 packets, that have been sent via eBPF through collect meta data mode due to checksum now being zero. Since after LCO, we enable IPv4 checksum by default, so make that analogous and only provide a flag BPF_F_ZERO_CSUM_TX for the user to turn it off in IPv4 case. Fixes: 35e2d1152b22 ("tunnels: Allow IPv6 UDP checksums to be correctly controlled.") Fixes: c6c33454072f ("bpf: support ipv6 for bpf_skb_{set,get}_tunnel_key") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5e: Wake On LAN supportTariq Toukan
Implement set/get WOL by ethtool and added the needed device commands and structures to mlx5_ifc. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Rana Shahout <ranas@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5e: Implement DCBNL IEEE max rateTariq Toukan
Add support for DCBNL IEEE get/set max rate. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5: Introduce physical port TC/prio access functionsSaeed Mahameed
Add access functions to set and query a physical port TC groups and prio parameters. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5: Introduce physical port PFC access functionsAchiad Shochat
Add access functions to set and query a physical port PFC (Priority Flow Control) parameters. Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5: Introduce a new header file for physical port functionsAchiad Shochat
All the device physical port access functions are implemented in the port.c file. We just extract the exposure of these functions from driver.h into a dedicated header file called port.h. Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24efi: stub: implement efi_get_random_bytes() based on EFI_RNG_PROTOCOLArd Biesheuvel
This exposes the firmware's implementation of EFI_RNG_PROTOCOL via a new function efi_get_random_bytes(). Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-02-24ACPICA: Remove unnecessary arguments to ACPI_INFOBob Moore
ACPICA commit 181f56605a771e0b91e24b0648d2565ca70bea20 This is used as a purely infomation message, without module name and line number information. Therefore, these arguments are not needed and they are unnecessary overhead. Arguments are removed. ACPICA BZ 872. Link: https://github.com/acpica/acpica/commit/181f5660 Link: https://bugs.acpica.org/show_bug.cgi?id=872 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-02-24net: rfkill: gpio: remove rfkill_gpio_platform_dataHeikki Krogerus
No more users for it. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24net: rfkill: add rfkill_find_type functionHeikki Krogerus
Helper for finding the type based on name. Useful if the type needs to be determined based on device property. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> [modify rfkill_types array and BUILD_BUG_ON to not cause errors] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24sched/wait: Fix wait_event_freezable() documentationStafford Horne
I noticed the comment label 'wait_event' was wrong. Signed-off-by: Stafford Horne <shorne@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1456234768-24933-1-git-send-email-shorne@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-02-24cfg80211: Add global RRM capabilityBeni Lev
Today, the supplicant will add the RRM capabilities Information Element in the association request only if Quiet period is supported (NL80211_FEATURE_QUIET). Quiet is one of many RRM features, and there are other RRM features that are not related to Quiet (e.g. neighbor report). Therefore, requiring Quiet to enable RRM is too restrictive. Some of the features, like neighbor report, can be supported by user space without any help from the kernel. Hence adding the RRM capabilities IE to association request should be the sole user space's decision. Removing the RRM dependency on Quiet in the driver solves this problem, but using an old driver with a user space tool that would not require Quiet feature would be problematic: the user space would add NL80211_ATTR_USE_RRM in the association request even if the kernel doesn't advertize NL80211_FEATURE_QUIET and the association would be denied by the kernel. This solution adds a global RRM capability, that tells user space that it can request RRM capabilities IE publishment without any specific feature support in the kernel. Signed-off-by: Beni Lev <beni.lev@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: move MU_MIMO_OWNER flag to ieee80211_vifSara Sharon
Drivers may need to track which vif is using VHT MU-MIMO. Move the flag indicationg the ownership of MU_MIMO to ieee80211_vif. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: provide interface to driver to set VHT MU-MIMO dataSara Sharon
Provide an interface to the lower level driver to set the VHT MU-MIMO data. This is needed for example when there is an update of the group data during low power state, where the management frame will not be passed to the host at all. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: remove ieee80211_get_key_tx_seq/ieee80211_set_key_tx_seqEliad Peller
Since the PNs of all the tx keys are now tracked in the public part of the key struct (with atomic counter), we no longer need these functions. dvm and vt665{5,6} are currently the only users of these functions, so update them accordingly. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: move TKIP TX IVs to public part of key structEliad Peller
Some drivers/devices might want to set the IVs by themselves (and still let mac80211 generate MMIC). Specifically, this is needed when the device does offloading at certain times, and the driver has to make sure that the IVs of new tx frames (from the host) are synchronized with IVs that were potentially used during the offloading. Similarly to CCMP, move the TX IVs of TKIP keys to the public part of the key struct, and export a function to add the IV right into the crypto header. The public tx_pn field is defined as atomic64, so define TKIP_PN_TO_IV16/32 helper macros to convert it to iv16/32 when needed. Since the iv32 used for the p1k cache is taken directly from the frame, we can safely remove iv16/32 from being protected by tkip.txlock. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: basic support for PBSS network typeLior David
PBSS (Personal Basic Service Set) is a new BSS type for DMG networks. It is similar to infrastructure BSS, having an AP-like entity called PCP (PBSS Control Point), but it has few differences. PBSS support is mandatory for 11ad devices. Add support for PBSS by introducing a new PBSS flag attribute. The PBSS flag is used in the START_AP command to request starting a PCP instead of an AP, and in the CONNECT command to request connecting to a PCP instead of an AP. Signed-off-by: Lior David <liord@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: add API to allow filtering frames in BA sessionsSara Sharon
If any frames are dropped that are part of a BA session, the reorder buffer will "indefinitely" (until the timeout) wait for them to come in (or a BAR moving the window) and won't release frames after them. This means it isn't possible to filter frames within a BA session in firmware. Introduce an API function that allows such filtering. Calling this function will move the BA window forward to the new SSN, and allows marking frames after the SSN as having been filtered, so any future reordering activity will release frames while skipping the holes. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: expose txq queue depth and size to driversMichal Kazior
This will allow drivers to make more educated decisions whether to defer transmission or not. Relying on wake_tx_queue() call count implicitly was not possible because it could be called without queued frame count actually changing on software tx aggregation start/stop code paths. It was also not possible to know how long byte-wise queue was without dequeueing. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: Parse legacy and HT rate in injected framesSven Eckelmann
Drivers/devices without their own rate control algorithm can get the information what rates they should use from either the radiotap header of injected frames or from the rate control algorithm. But the parsing of the legacy rate information from the radiotap header was removed in commit e6a9854b05c1 ("mac80211/drivers: rewrite the rate control API"). The removal of this feature heavily reduced the usefulness of frame injection when wanting to simulate specific transmission behavior. Having rate parsing together with MCS rates and retry support allows a fine grained selection of the tx behavior of injected frames for these kind of tests. Signed-off-by: Sven Eckelmann <sven@narfation.org> Cc: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: add RX_FLAG_MACTIME_PLCP_STARTJohannes Berg
The timestamp given by iwlwifi is at the beginning of the frame over the air, at (or during) the SYNC field. Allow such timestamps to be given to mac80211, at least (for now) for frames with non-HT/VHT preambles. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24rfkill: Update userspace API documentationJoão Paulo Rechi Vita
Add a note to userspace on the effect of RFKILL_OP_CHANGE_ALL also updating the default state for hotplugged devices. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> [reword a bit] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24rfkill: disentangle polling pause and suspendJohannes Berg
When suspended while polling is paused, polling will erroneously resume at resume time. Fix this by tracking pause and suspend in separate state variable and adding the necessary checks. Clarify the documentation on this as well. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: Make addr const in SET_IEEE80211_PERM_ADDR()Bjorn Andersson
Make the addr parameter const in SET_IEEE80211_PERM_ADDR() to save clients from having to cast away a const qualifier. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: limit the A-MSDU Tx based on peer's capabilitiesEmmanuel Grumbach
In VHT, the specification allows to limit the number of MSDUs in an A-MSDU in the Extended Capabilities IE. There is also a limitation on the byte size in the VHT IE. In HT, the only limitation is on the byte size. Parse the capabilities from the peer and make them available to the driver. In HT, there is another limitation when a BA agreement is active: the byte size can't be greater than 4095. This is not enforced here. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: allow drivers to report (non-)monitor framesGrzegorz Bajorski
Some drivers offload some frames internally (e.g. AddBa). Reporting such frames to mac80211 would only confuse MLME. However it would be useful to be able to pass such frames to monitor interfaces for sniffing purposes, e.g. when running AP + monitor. To do that allow drivers to tell mac80211 whether a given frame should be: - processed but not delivered to any monitor vif - not processed but delievered to monitor vifs only Signed-off-by: Grzegorz Bajorski <grzegorz.bajorski@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: support hw managing reorder logicSara Sharon
Enable driver to manage the reordering logic itself. This is needed for example for the iwlwifi driver that will support hardware assisted reordering. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24ASoC: adau17x1: Correct typos in file headersAndreas Irestål
Signed-off-by: Andreas Irestål <andire@axis.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-23rcu: Remove rcu_user_hooks_switchYang Shi
Because there are neither uses nor intended uses for the rcu_user_hooks_switch() function that was orginally intended for nohz use, this commit removes it. Signed-off-by: Yang Shi <yang.shi@linaro.org> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-02-23rcu: Document unique-name limitation for DEFINE_STATIC_SRCU()Paul E. McKenney
SRCU uses per-CPU variables, and DEFINE_STATIC_SRCU() uses a static per-CPU variable. However, per-CPU variables have significant restrictions, for example, names of per-CPU variables must be globally unique, even if declared static. These restrictions carry over to DEFINE_STATIC_SRCU(), and this commit therefore documents these restrictions. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: kbuild test robot <fengguang.wu@intel.com> Suggested-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Tejun Heo <tj@kernel.org>
2016-02-23irq: Privatize irq_common_data::state_use_accessorsBoqun Feng
irq_common_data::state_use_accessors is not designed for public use. Therefore make it private so that people who write code accessing it directly will get blamed by sparse. Also #undef the macro __irqd_to_state after used in header files, so that the macro can't be misused. Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-02-23sparse: Add __private to privatize members of structsBoqun Feng
In C programming language, we don't have a easy way to privatize a member of a structure. However in kernel, sometimes there is a need to privatize a member in case of potential bugs or misuses. Fortunately, the noderef attribute of sparse is a way to privatize a member, as by defining a member as noderef, the address-of operator on the member will produce a noderef pointer to that member, and if anyone wants to dereference that kind of pointers to read or modify the member, sparse will yell. Based on this, __private modifier and related operation ACCESS_PRIVATE() are introduced, which could help detect undesigned public uses of private members of structs. Here is an example of sparse's output if it detect an undersigned public use: | kernel/rcu/tree.c:4453:25: warning: incorrect type in argument 1 (different modifiers) | kernel/rcu/tree.c:4453:25: expected struct raw_spinlock [usertype] *lock | kernel/rcu/tree.c:4453:25: got struct raw_spinlock [noderef] *<noident> Also, this patch improves compiler.h a little bit by adding comments for "#else" and "#endif". Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-02-23scsi_dh: add 'rescan' callbackHannes Reinecke
If a device needs to be rescanned the device_handler might need to be rechecked, too. So add a 'rescan' callback to the device handler and call it upon scsi_rescan_device(). The rescan callback will be invoked from the Unit Attention handling of ASC/ASCQ 3F 03 (INQUIRY DATA HAS CHANGED). Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23scsi_dh_alua: Add new blacklist flag 'BLIST_SYNC_ALUA'Hannes Reinecke
Add a new blacklist flag BLIST_SYNC_ALUA to instruct the alua device handler to use synchronous command submission for ALUA commands. Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit (git 2.34.1) at 2025-09-20 18:42:46 +0000