- 27 Jun, 2017 4 commits
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Heikki Krogerus authored
UCSI - USB Type-C Connector System Software Interface - is a specification that defines set of registers and data structures for controlling the USB Type-C ports. It's designed for systems where an embedded controller (EC) is in charge of the USB Type-C PHY or USB Power Delivery controller. It is designed for systems with EC, but it is not limited to them, and for example some USB Power Delivery controllers will use it as their direct control interface. With UCSI the EC (or USB PD controller) acts as the port manager, implementing all USB Type-C and Power Delivery state machines. The OS can use the interfaces for reading the status of the ports and controlling basic operations like role swapping. The UCSI specification highlights the fact that it does not define the interface method (PCI/I2C/ACPI/etc.). Therefore the driver is implemented as library and every supported interface method needs its own driver. Driver for ACPI is provided in separate patch following this one. The initial driver includes support for all required features from UCSI specification version 1.0 (getting connector capabilities and status, and support for power and data role swapping), but none of the optional UCSI features (alternate modes, power source capabilities, and cable capabilities). Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Gustavo A. R. Silva authored
Simplify return logic to avoid unnecessary variable assignment. Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Acked-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman authored
Merge tag 'extcon-next-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into usb-next Chanwoo writes: Update extcon for 4.13 Detailed description for this pull request: - Use devm_kcalloc() and fix typo for extcon core/extcon-arizona.c. - Add dependency ARCH_QCOM for extcon-qcom-spmi-misc.c - Use resource-managed devm_* function for gpios on extcon-int3496.c
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Greg Kroah-Hartman authored
Merge tag 'usb-ci-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next Peter writes: One patch to improve error handling at chipidea core
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- 20 Jun, 2017 12 commits
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Peter Ujfalusi authored
With the port_window support in DMAengine and the sDMA driver we can convert the driver to DMAengine. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Ujfalusi authored
The external request lines are used by tusb6010 on OMAP24xx platforms. Update the map so the driver can use dmaengine API to request the DMA channel. At the same time add temporary map containing only the external DMA request numbers for DT booted case on omap24xx since the tusb6010 stack is not yet supports DT boot. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Ujfalusi authored
Handle the DMA TX in a similar way as we do for the RX: in the DMA completion callback. Since we are no longer using DMA completion interrupt for the TX we can as wall keep these interrupts disabled, but keep the handler for debug purposes. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Ujfalusi authored
Instead of requesting the DMA channel in tusb_omap_dma_allocate() do it when the controller is created and in runtime work from the DMA channel pool. This change is needed for the DMAengine conversion of the driver since the tusb_omap_dma_allocate() is called in interrupt context which might lead to lock within the DMAengine API when requesting channel. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Ujfalusi authored
For the DMA we have ch (channel), dmareq and sync_dev parameters both within the tusb_omap_dma_ch and tusb_omap_dma struct. By creating a common struct the code can be simplified when selecting between the shared or multichannel DMA parameters. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Ujfalusi authored
Having one musb_ep_select() instead the two calls in if/else is the same thing, but makes the code a bit simpler to follow. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Ujfalusi authored
When using the g_ncm for networking this flag will make sure that the buffer is aligned to 32bit so the DMA can be used to offload the data movement. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Ujfalusi authored
For tusb6010 the DMA functionality only possible if the buffer is 32bit aligned (SYNC access to FIFO) since with ASYNC access the TX/RX offset registers will corrupt eventually. The MUSB_G_NO_SKB_RESERVE will set the quirk_avoids_skb_reserve flag in usb_gadget struct to provide correctly aligned buffer. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Ujfalusi authored
When the port_window support was verified it was done on setup where only the MEM_TO_DEV direction was enabled. This got un-noticed and thus only this direction worked. Now that I have managed to get a setup to verify both direction it turned out that the setup was incorrect: omap_desc members are settings for the slave port while the omap_sg members apply to the memory side of the sDMA setup. Fixes: 527a2759 ("dmaengine: omap-dma: Fix the port_window support") Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: Russell King <linux@armlinux.org.uk> Cc: dmaengine@vger.kernel.org Cc: dan.j.williams@intel.com Cc: vinod.koul@intel.com Tested-by: Tony Lindgren <tony@atomide.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexandre Bailon authored
If dma_request_slave_channel() failed to return a channel, then the driver will print an error and request to defer probe, regardless of the cause of the failure. Defer if the DMA is not ready yet otherwise print an error. Signed-off-by: Alexandre Bailon <abailon@baylibre.com> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman authored
Merge tag 'usb-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-testing Felipe writes: usb: changes for v4.13 merge window This time around we have a total of 57 non-merge commits. A list of most important changes follows: - Improvements to dwc3 tracing interface - Initial dual-role support for dwc3 - Improvements to how we handle DMA resources in dwc3 - A new f_uac1 implementation which much more flexible - Removal of AVR32 bits - Improvements to f_mass_storage driver
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Greg Kroah-Hartman authored
We want the USB fixes in here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 19 Jun, 2017 15 commits
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Linus Torvalds authored
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Hugh Dickins authored
Stack guard page is a useful feature to reduce a risk of stack smashing into a different mapping. We have been using a single page gap which is sufficient to prevent having stack adjacent to a different mapping. But this seems to be insufficient in the light of the stack usage in userspace. E.g. glibc uses as large as 64kB alloca() in many commonly used functions. Others use constructs liks gid_t buffer[NGROUPS_MAX] which is 256kB or stack strings with MAX_ARG_STRLEN. This will become especially dangerous for suid binaries and the default no limit for the stack size limit because those applications can be tricked to consume a large portion of the stack and a single glibc call could jump over the guard page. These attacks are not theoretical, unfortunatelly. Make those attacks less probable by increasing the stack guard gap to 1MB (on systems with 4k pages; but make it depend on the page size because systems with larger base pages might cap stack allocations in the PAGE_SIZE units) which should cover larger alloca() and VLA stack allocations. It is obviously not a full fix because the problem is somehow inherent, but it should reduce attack space a lot. One could argue that the gap size should be configurable from userspace, but that can be done later when somebody finds that the new 1MB is wrong for some special case applications. For now, add a kernel command line option (stack_guard_gap) to specify the stack gap size (in page units). Implementation wise, first delete all the old code for stack guard page: because although we could get away with accounting one extra page in a stack vma, accounting a larger gap can break userspace - case in point, a program run with "ulimit -S -v 20000" failed when the 1MB gap was counted for RLIMIT_AS; similar problems could come with RLIMIT_MLOCK and strict non-overcommit mode. Instead of keeping gap inside the stack vma, maintain the stack guard gap as a gap between vmas: using vm_start_gap() in place of vm_start (or vm_end_gap() in place of vm_end if VM_GROWSUP) in just those few places which need to respect the gap - mainly arch_get_unmapped_area(), and and the vma tree's subtree_gap support for that. Original-patch-by: Oleg Nesterov <oleg@redhat.com> Original-patch-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Tested-by: Helge Deller <deller@gmx.de> # parisc Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Olof Johansson: "Stream of fixes has slowed down, only a few this week: - Some DT fixes for Allwinner platforms, and addition of a clock to the R_CCU clock controller that had been missed. - A couple of small DT fixes for am335x-sl50" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: allwinner: a64: Add PLL_PERIPH0 clock to the R_CCU ARM: sunxi: h3-h5: Add PLL_PERIPH0 clock to the R_CCU ARM: dts: am335x-sl50: Fix cannot claim requested pins for spi0 ARM: dts: am335x-sl50: Fix card detect pin for mmc1 arm64: allwinner: h5: Remove syslink to shared DTSI ARM: sunxi: h3/h5: fix the compatible of R_CCU
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Ruslan Bilovol authored
This patch adds a new function 'f_uac1' (f_uac1 with virtual "ALSA card") that uses recently created u_audio API. Comparing to legacy f_uac1 function implementation it doesn't require any real Audio codec to be present on the device. In f_uac1 audio streams are simply sinked to and sourced from a virtual ALSA sound card created using u_audio API. Legacy f_uac1 approach is to write audio samples directly to existing ALSA sound card f_uac1 approach is more generic/flexible one - create an ALSA sound card that represents USB Audio function and allows to be used by userspace application that may choose to do whatever it wants with the data received from the USB Host and choose to provide whatever it wants as audio data to the USB Host. f_uac1 also has capture support (gadget->host) thanks to easy implementation via u_audio. By default, capture interface has 48000kHz/2ch configuration, same as playback channel has. f_uac1 descriptors naming convention uses f_uac2 driver naming convention that makes it more common and meaningful. Comparing to f_uac1_legacy, the f_uac1 doesn't have volume/mute functionality. This is because the f_uac1 volume/mute feature unit was dummy implementation since that driver creation (2009) and never had any real volume control or mute functionality, so there is no any difference here. Since f_uac1 functionality, exposed interface to userspace (virtual ALSA card), input parameters are so different comparing to f_uac1_legacy, that there is no any reason to keep them in the same file/module, and separate function was created. g_audio can be built using one of existing UAC functions (f_uac1, f_uac1_legacy or f_uac2) Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Ruslan Bilovol authored
Before introducing new f_uac1 function (with virtual ALSA card) make current implementation legacy. This includes renaming of existing files, some variables, config options and documentation Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Ruslan Bilovol authored
Abstract the peripheral side ALSA sound card code from the f_uac2 function into a component that can be called by various functions, so the various flavors can be split apart and selectively reused. Visible changes: - add uac_params structure to pass audio paramteres for g_audio_setup - make ALSA sound card's name configurable - add [in/out]_ep_maxpsize - allocate snd_uac_chip structure during g_audio_setup - add u_audio_[start/stop]_[capture/playback] functions Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Ruslan Bilovol authored
Simplify f_uac2 by removing platform driver/device creation; use composite's usb_gadget device as parent for sound card and for debug prints. This removes extra layer of code without any functional change. Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Ruslan Bilovol authored
After commit 7e4da3fc ("usb: gadget: composite: Test get_alt() presence instead of set_alt()") f_uac1 function became broken because it doesn't have get_alt() callback implementation and composite framework never set altsetting 1 for audiostreaming interface. On host site it looks like: [424339.017711] 21:1:1: usb_set_interface failed (-32) Since host can't set altsetting 1, it can't start playing audio. In order to fix it implemented get_alt along with minor improvements (error conditions checking) similar to what existing f_uac2 has. Cc: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Alexandre Belloni authored
commit 46ddd79e ("usb: gadget: udc: atmel: Remove AVR32 bits from the driver") left the accessor macros introduced by commit a3dd3bef ("usb: gadget: atmel_usba: use endian agnostic IO on ARM"). They can now be removed. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Srinath Mannam authored
Corrected the register to check the 64-bit pointer capability state. 64-bit pointer implementation capability was checking in wrong register, which causes the BDC enumeration failure in 64-bit memory address. Fixes: efed421a ("usb: gadget: Add UDC driver for Broadcom USB3.0 device controller IP BDC") Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Olof Johansson authored
Merge tag 'sunxi-fixes-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes Allwinner fixes for 4.12 A few fixes around the PRCM support that got in 4.12 with a wrong compatible, and a missing clock in the binding. * tag 'sunxi-fixes-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: arm64: allwinner: a64: Add PLL_PERIPH0 clock to the R_CCU ARM: sunxi: h3-h5: Add PLL_PERIPH0 clock to the R_CCU arm64: allwinner: h5: Remove syslink to shared DTSI ARM: sunxi: h3/h5: fix the compatible of R_CCU Signed-off-by: Olof Johansson <olof@lixom.net>
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Olof Johansson authored
Merge tag 'omap-for-v4.12/fixes-sl50' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Two fixes for am335x-sl50 to fix a boot time error for claiming SPI pins, and to fix a SDIO card detect pin for production version of the device. * tag 'omap-for-v4.12/fixes-sl50' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: am335x-sl50: Fix cannot claim requested pins for spi0 ARM: dts: am335x-sl50: Fix card detect pin for mmc1 Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull virtio bugfix from Michael Tsirkin: "It turns out balloon does not handle IOMMUs correctly. We should fix that at some point, for now let's just disable this configuration" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio_balloon: disable VIOMMU support
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "Two driver bugfixes" * 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: ismt: fix wrong device address when unmap the data buffer i2c: rcar: use correct length when unmapping DMA
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS fixes from Ralf Baechle: - Three highmem fixes: + Fixed mapping initialization + Adjust the pkmap location + Ensure we use at most one page for PTEs - Fix makefile dependencies for .its targets to depend on vmlinux - Fix reversed condition in BNEZC and JIALC software branch emulation - Only flush initialized flush_insn_slot to avoid NULL pointer dereference - perf: Remove incorrect odd/even counter handling for I6400 - ftrace: Fix init functions tracing * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: .its targets depend on vmlinux MIPS: Fix bnezc/jialc return address calculation MIPS: kprobes: flush_insn_slot should flush only if probe initialised MIPS: ftrace: fix init functions tracing MIPS: mm: adjust PKMAP location MIPS: highmem: ensure that we don't use more than one page for PTEs MIPS: mm: fixed mappings: correct initialisation MIPS: perf: Remove incorrect odd/even counter handling for I6400
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- 18 Jun, 2017 7 commits
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Michael S. Tsirkin authored
virtio balloon bypasses the DMA API entirely so does not support the VIOMMU right now. It's not clear we need that support, for now let's just make sure we don't pretend to support it. Cc: stable@vger.kernel.org Cc: Wei Wang <wei.w.wang@intel.com> Fixes: 1a937693 ("virtio: new feature to detect IOMMU device quirk") Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "Two fixlets for x86: - Handle WARN_ONs proper with the new UD based WARN implementation - Disable 1G mappings when 2M mappings are disabled by kmemleak or debug_pagealloc. Otherwise 1G mappings might still be used, confusing the debug mechanisms" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Disable 1GB direct mappings when disabling 2MB mappings x86/debug: Handle early WARN_ONs proper
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Thomas Gleixner: "Three fixlets for timers: - Two hot-fixes for the alarmtimer based posix timers, which prevent a nasty DOS by self rescheduling timers. The proper cleanup of that mess is queued for 4.13 - Make a function static" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick/broadcast: Make tick_broadcast_setup_oneshot() static alarmtimer: Rate limit periodic intervals alarmtimer: Prevent overflow of relative timers
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Thomas Gleixner: "Two small fixes for the schedulre core: - Use the proper switch_mm() variant in idle_task_exit() because that code is not called with interrupts disabled. - Fix a confusing typo in a printk" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Idle_task_exit() shouldn't use switch_mm_irqs_off() sched/fair: Fix typo in printk message
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Thomas Gleixner: "Three fixes for the perf user space side: - Fix the probing of precise_ip level, which got broken recently for x86. - Unbreak the ARCH=x86_64 build - Report module before trying to unwind into the module code, which avoids broken stack frames displayed" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf unwind: Report module before querying isactivation in dwfl unwind perf tools: Fix build with ARCH=x86_64 perf evsel: Fix probing of precise_ip level for default cycles event
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fix from Thomas Gleixner: "Add a missing resource release to an error path" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Release resources in __setup_irq() error path
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull objtool fix from Thomas Gleixner: "A single fix which adds fortify_panic to the list of no return functions" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Add fortify_panic as __noreturn function
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- 17 Jun, 2017 2 commits
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Linus Torvalds authored
Merge tag 'led_fixes_for_4.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED fixes from Jacek Anaszewski: "Two LED fixes: - fix signal source assignment for leds-bcm6328 - revert patch that intended to fix LED behavior on suspend but it had a side effect preventing suspend at all due to uevent being sent on trigger removal" * tag 'led_fixes_for_4.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: Revert "leds: handle suspend/resume in heartbeat trigger" leds: bcm6328: fix signal source assignment for leds 4 to 7
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are some small gadget and xhci USB fixes for 4.12-rc6. Nothing major, but one of the gadget patches does fix a reported oops, and the xhci ones resolve reported problems. All have been in linux-next with no reported issues" * tag 'usb-4.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks usb: xhci: ASMedia ASM1042A chipset need shorts TX quirk usb: xhci: Fix USB 3.1 supported protocol parsing USB: gadget: fix GPF in gadgetfs usb: gadget: composite: make sure to reactivate function on unbind
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