- 19 Jul, 2016 11 commits
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Will Deacon authored
Stepping with PSTATE.D=1 is bad news. The step won't generate a debug exception and we'll likely walk off into random data structures. This should never happen, but when it does, it's a PITA to debug. Add a WARN_ON to shout if we realise this is about to take place. Signed-off-by:
Will Deacon <will.deacon@arm.com> Acked-by:
Mark Rutland <mark.rutland@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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Sandeepa Prabhu authored
Add info prints in sample kprobe handlers for ARM64 Signed-off-by:
Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by:
David A. Long <dave.long@linaro.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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Sandeepa Prabhu authored
The pre-handler of this special 'trampoline' kprobe executes the return probe handler functions and restores original return address in ELR_EL1. This way the saved pt_regs still hold the original register context to be carried back to the probed kernel function. Signed-off-by:
Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by:
David A. Long <dave.long@linaro.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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William Cohen authored
The trampoline code is used by kretprobes to capture a return from a probed function. This is done by saving the registers, calling the handler, and restoring the registers. The code then returns to the original saved caller return address. It is necessary to do this directly instead of using a software breakpoint because the code used in processing that breakpoint could itself be kprobe'd and cause a problematic reentry into the debug exception handler. Signed-off-by:
William Cohen <wcohen@redhat.com> Signed-off-by:
David A. Long <dave.long@linaro.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> [catalin.marinas@arm.com: removed unnecessary masking of the PSTATE bits] Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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Sandeepa Prabhu authored
Kprobes needs simulation of instructions that cannot be stepped from a different memory location, e.g.: those instructions that uses PC-relative addressing. In simulation, the behaviour of the instruction is implemented using a copy of pt_regs. The following instruction categories are simulated: - All branching instructions(conditional, register, and immediate) - Literal access instructions(load-literal, adr/adrp) Conditional execution is limited to branching instructions in ARM v8. If conditions at PSTATE do not match the condition fields of opcode, the instruction is effectively NOP. Thanks to Will Cohen for assorted suggested changes. Signed-off-by:
Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by:
William Cohen <wcohen@redhat.com> Signed-off-by:
David A. Long <dave.long@linaro.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> [catalin.marinas@arm.com: removed linux/module.h include] Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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Pratyush Anand authored
Entry symbols are not kprobe safe. So blacklist them for kprobing. Signed-off-by:
Pratyush Anand <panand@redhat.com> Signed-off-by:
David A. Long <dave.long@linaro.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> [catalin.marinas@arm.com: Do not include syscall wrappers in .entry.text] Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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Pratyush Anand authored
Add all function symbols which are called from do_debug_exception under NOKPROBE_SYMBOL, as they can not kprobed. Signed-off-by:
Pratyush Anand <panand@redhat.com> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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Sandeepa Prabhu authored
Add support for basic kernel probes(kprobes) and jump probes (jprobes) for ARM64. Kprobes utilizes software breakpoint and single step debug exceptions supported on ARM v8. A software breakpoint is placed at the probe address to trap the kernel execution into the kprobe handler. ARM v8 supports enabling single stepping before the break exception return (ERET), with next PC in exception return address (ELR_EL1). The kprobe handler prepares an executable memory slot for out-of-line execution with a copy of the original instruction being probed, and enables single stepping. The PC is set to the out-of-line slot address before the ERET. With this scheme, the instruction is executed with the exact same register context except for the PC (and DAIF) registers. Debug mask (PSTATE.D) is enabled only when single stepping a recursive kprobe, e.g.: during kprobes reenter so that probed instruction can be single stepped within the kprobe handler -exception- context. The recursion depth of kprobe is always 2, i.e. upon probe re-entry, any further re-entry is prevented by not calling handlers and the case counted as a missed kprobe). Single stepping from the x-o-l slot has a drawback for PC-relative accesses like branching and symbolic literals access as the offset from the new PC (slot address) may not be ensured to fit in the immediate value of the opcode. Such instructions need simulation, so reject probing them. Instructions generating exceptions or cpu mode change are rejected for probing. Exclusive load/store instructions are rejected too. Additionally, the code is checked to see if it is inside an exclusive load/store sequence (code from Pratyush). System instructions are mostly enabled for stepping, except MSR/MRS accesses to "DAIF" flags in PSTATE, which are not safe for probing. This also changes arch/arm64/include/asm/ptrace.h to use include/asm-generic/ptrace.h. Thanks to Steve Capper and Pratyush Anand for several suggested Changes. Signed-off-by:
Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by:
David A. Long <dave.long@linaro.org> Signed-off-by:
Pratyush Anand <panand@redhat.com> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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David A. Long authored
Cease using the arm32 arm_check_condition() function and replace it with a local version for use in deprecated instruction support on arm64. Also make the function table used by this available for future use by kprobes and/or uprobes. This function is derived from code written by Sandeepa Prabhu. Signed-off-by:
Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by:
David A. Long <dave.long@linaro.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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David A. Long authored
Certain instructions are hard to execute correctly out-of-line (as in kprobes). Test functions are added to insn.[hc] to identify these. The instructions include any that use PC-relative addressing, change the PC, or change interrupt masking. For efficiency and simplicity test functions are also added for small collections of related instructions. Signed-off-by:
David A. Long <dave.long@linaro.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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David A. Long authored
Add HAVE_REGS_AND_STACK_ACCESS_API feature for arm64, including supporting functions and defines. Signed-off-by:
David A. Long <dave.long@linaro.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> [catalin.marinas@arm.com: Remove unused functions] Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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- 20 Jun, 2016 1 commit
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Linus Torvalds authored
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- 19 Jun, 2016 9 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fsLinus Torvalds authored
Pull UDF fixes and a reiserfs fix from Jan Kara: "A couple of udf fixes (most notably a bug in parsing UDF partitions which led to inability to mount recent Windows installation media) and a reiserfs fix for handling kstrdup failure" * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: reiserfs: check kstrdup failure udf: Use correct partition reference number for metadata udf: Use IS_ERR when loading metadata mirror file entry udf: Don't BUG on missing metadata partition descriptor
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git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds authored
Pull dmaengine fixes from Vinod Koul: "Some fixes has piled up, so time to send them upstream. These fixes include: - at_xdmac fixes for residue and other stuff - update MAINTAINERS for dma dt bindings - mv_xor fix for incorrect offset" * tag 'dmaengine-fix-4.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: mv_xor: Fix incorrect offset in dma_map_page() dmaengine: at_xdmac: double FIFO flush needed to compute residue dmaengine: at_xdmac: fix residue corruption dmaengine: at_xdmac: align descriptors on 64 bits MAINTAINERS: Add file patterns for dma device tree bindings
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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: "Another batch of fixes for ARM SoC platforms. Most are smaller fixes. Two areas that are worth pointing out are: - OMAP had a handful of changes to voltage specs that caused a bit of churn, most of volume of change in this branch is due to this. - There are a couple of _rcuidle fixes from Paul that touch common code and came in through the OMAP tree since they were the ones who saw the problems. The rest is smaller changes across a handful of platforms" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits) ARM: dts: STi: stih407-family: Disable reserved-memory co-processor nodes ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218 ARM: OMAP2+: timer: add probe for clocksources ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing arm: Use _rcuidle for smp_cross_call() tracepoints MAINTAINERS: Add myself as reviewer of ARM FSL/NXP ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON ARM: imx6ul: Fix Micrel PHY mask ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX ARM: dts: DRA74x: fix DSS PLL2 addresses ARM: OMAP2: Enable Errata 430973 for OMAP3 ARM: dts: socfpga: Add missing PHY phandle ARM: dts: exynos: Fix port nodes names for Exynos5420 Peach Pit board ARM: dts: exynos: Fix port nodes names for Exynos5250 Snow board ARM: dts: sun6i: yones-toptech-bs1078-v2: Drop constraints on dc1sw regulator ARM: dts: sun6i: primo81: Drop constraints on dc1sw regulator ARM: dts: sunxi: Add OLinuXino Lime2 eMMC to the Makefile ...
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https://github.com/rogerq/linuxOlof Johansson authored
OMAP-GPMC: Fixes for for v4.7-rc cycle: - Fix omap gpmc EXTRADELAY timing. The DT provided timings were wrongly used causing devices requiring extra delay timing to fail. * tag 'gpmc-omap-fixes-for-v4.7' of https://github.com/rogerq/linux: memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing + Linux 4.7-rc3 Signed-off-by:
Olof Johansson <olof@lixom.net>
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Olof Johansson authored
Merge tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for omaps for v4.7-rc cycle: - Fix dra7 for hardware issues limiting L4Per and L3init power domains to on state. Without this the devices may not work correctly after some time of use because of asymmetric aging. And related to this, let's also remove the unusable states. - Always select omap interconnect for am43x as otherwise the am43x only configurations will not boot properly. This can happen easily for any product kernels that leave out other SoCs to save memory. - Fix DSS PLL2 addresses that have gone unused for now - Select erratum 430973 for omap3, this is now safe to do and can save quite a bit of debugging time for people who may have left it out. * tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX ARM: dts: DRA74x: fix DSS PLL2 addresses ARM: OMAP2: Enable Errata 430973 for OMAP3 + Linux 4.7-rc2 Signed-off-by:
Olof Johansson <olof@lixom.net>
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Olof Johansson authored
Merge tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for omaps for v4.7-rc cycle: - Two boot warning fixes from the RCU tree that should have gotten merged several weeks ago already but did not because of issues with who merges them. Paul has now split the RCU warning fixes into sets for various maintainers. - Fix ams-delta FIQ regression caused by omap1 sparse IRQ changes - Fix PM for omap3 boards using timer12 and gptimer, like the original beagleboard - Fix hangs on am437x-sk-evm by lowering the I2C bus speed * tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218 ARM: OMAP2+: timer: add probe for clocksources ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ arm: Use _rcuidle for smp_cross_call() tracepoints arm: Use _rcuidle tracepoint to allow use from idle Signed-off-by:
Olof Johansson <olof@lixom.net>
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Lee Jones authored
This patch fixes a non-booting issue in Mainline. When booting with a compressed kernel, we need to be careful how we populate memory close to DDR start. AUTO_ZRELADDR is enabled by default in multi-arch enabled configurations, which place some restrictions on where the kernel is placed and where it will be uncompressed to on boot. AUTO_ZRELADDR takes the decompressor code's start address and masks out the bottom 28 bits to obtain an address to uncompress the kernel to (thus a load address of 0x42000000 means that the kernel will be uncompressed to 0x40000000 i.e. DDR START on this platform). Even changing the load address to after the co-processor's shared memory won't render a booting platform, since the AUTO_ZRELADDR algorithm still ensures the kernel is uncompressed into memory shared with the first co-processor (0x40000000). Another option would be to move loading to 0x4A000000, since this will mean the decompressor will decompress the kernel to 0x48000000. However, this would mean a large chunk (0x44000000 => 0x48000000 (64MB)) of memory would essentially be wasted for no good reason. Until we can work with ST to find a suitable memory location to relocate co-processor shared memory, let's disable the shared memory nodes. This will ensure a working platform in the mean time. NB: The more observant of you will notice that we're leaving the DMU shared memory node enabled; this is because a) it is the only one in active use at the time of this writing and b) it is not affected by the current default behaviour which is causing issues. Fixes: fe135c63 (ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA memory) Signed-off-by:
Lee Jones <lee.jones@linaro.org> Reviewed-by Peter Griffin <peter.griffin@linaro.org> Signed-off-by:
Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by:
Olof Johansson <olof@lixom.net>
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Olof Johansson authored
Merge tag 'imx-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes The i.MX fixes for 4.7: - Correct Micrel PHY mask to fix the issue that i.MX6UL ethernet works in U-Boot but not in kernel. * tag 'imx-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: imx6ul: Fix Micrel PHY mask Signed-off-by:
Olof Johansson <olof@lixom.net>
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "A couple of fixes for pmd_mknotpresent()/pmd_present() for LPAE systems" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8579/1: mm: Fix definition of pmd_mknotpresent ARM: 8578/1: mm: ensure pmd_present only checks the valid bit
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- 18 Jun, 2016 15 commits
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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 a bunch (65) of USB fixes for 4.7-rc4. Sorry about the quantity, I've been slow in getting these out. The majority are the "normal" gadget, musb, and xhci fixes, that we all are used to. There are also a few other tiny fixes resolving a number of reported issues that showed up in 4.7-rc1. All of these have been in linux-next" * tag 'usb-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (65 commits) usbip: rate limit get_frame_number message usb: musb: sunxi: Remove bogus "Frees glue" comment usb: musb: sunxi: Fix NULL ptr deref when gadget is registered before musb usb: echi-hcd: Add ehci_setup check before echi_shutdown usb: host: ehci-msm: Conditionally call ehci suspend/resume MAINTAINERS: Add file patterns for usb device tree bindings usb: host: ehci-tegra: Avoid getting the same reset twice usb: host: ehci-tegra: Grab the correct UTMI pads reset USB: mos7720: delete parport USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails phy: ti-pipe3: Program the DPLL even if it was already locked usb: musb: Stop bulk endpoint while queue is rotated usb: musb: Ensure rx reinit occurs for shared_fifo endpoints usb: musb: host: correct cppi dma channel for isoch transfer usb: musb: only restore devctl when session was set in backup usb: phy: Check initial state for twl6030 usb: musb: Use normal module_init for 2430 glue usb: musb: Remove pm_runtime_set_irq_safe usb: musb: Remove extra PM runtime calls from 2430 glue layer usb: musb: Return error value from musb_mailbox ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull IIO and staging fixes from Greg KH: "Here are a number of IIO and staging bugfixes for 4.7-rc4. Nothing huge, the normal amount of iio driver fixes, and some small staging driver bugfixes for some reported problems (2 are reverts of patches that went into 4.7-rc1). All have been in linux-next with no reported issues" * tag 'staging-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (24 commits) Revert "Staging: rtl8188eu: rtw_efuse: Use sizeof type *pointer instead of sizeof type." Revert "Staging: drivers: rtl8188eu: use sizeof(*ptr) instead of sizeof(struct)" staging: lustre: lnet: Don't access NULL NI on failure path iio: hudmidity: hdc100x: fix incorrect shifting and scaling iio: light apds9960: Add the missing dev.parent iio: Fix error handling in iio_trigger_attach_poll_func iio: st_sensors: Disable DRDY at init time iio: st_sensors: Init trigger before irq request iio: st_sensors: switch to a threaded interrupt iio: light: bh1780: assign a static name iio: bh1780: dereference the client properly iio: humidity: hdc100x: fix IIO_TEMP channel reporting iio:st_pressure: fix sampling gains (bring inline with ABI) iio: proximity: as3935: fix buffer stack trashing iio: proximity: as3935: remove triggered buffer processing iio: proximity: as3935: correct IIO_CHAN_INFO_RAW output max44000: Remove scale from proximity iio: humidity: am2315: Remove a stray unlock iio: humidity: hdc100x: correct humidity integration time mask iio: pressure: bmp280: fix error message for wrong chip id ...
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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 a small number of debugfs, ISA, and one driver core fix for 4.7-rc4. All of these resolve reported issues. The ISA ones have spent the least amount of time in linux-next, sorry about that, I didn't realize they were regressions that needed to get in now (thanks to Thorsten for the prodding!) but they do all pass the 0-day bot tests. The others have been in linux-next for a while now. Full details about them are in the shortlog below" * tag 'driver-core-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: isa: Dummy isa_register_driver should return error code isa: Call isa_bus_init before dependent ISA bus drivers register watchdog: ebc-c384_wdt: Allow build for X86_64 iio: stx104: Allow build for X86_64 gpio: Allow PC/104 devices on X86_64 isa: Allow ISA-style drivers on modern systems base: make module_create_drivers_dir race-free debugfs: open_proxy_open(): avoid double fops release debugfs: full_proxy_open(): free proxy on ->open() failure kernel/kcov: unproxify debugfs file's fops
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are a small number of char and misc driver fixes for 4.7-rc4. They resolve some minor issues that have been reported, and have all been in linux-next" * tag 'char-misc-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: coresight: Handle build path error coresight: Fix erroneous memset in tmc_read_unprepare_etr coresight: Fix tmc_read_unprepare_etr coresight: Fix NULL pointer dereference in _coresight_build_path extcon: palmas: Fix boot up state of VBUS when using GPIO detection mcb: Acquire reference to carrier module in core mcb: Acquire reference to device in probe mei: don't use wake_up_interruptible for wr_ctrl
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason: "The most user visible change here is a fix for our recent superblock validation checks that were causing problems on non-4k pagesized systems" * 'for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: btrfs_check_super_valid: Allow 4096 as stripesize btrfs: remove build fixup for qgroup_account_snapshot btrfs: use new error message helper in qgroup_account_snapshot btrfs: avoid blocking open_ctree from cleaner_kthread Btrfs: don't BUG_ON() in btrfs_orphan_add btrfs: account for non-CoW'd blocks in btrfs_abort_transaction Btrfs: check if extent buffer is aligned to sectorsize btrfs: Use correct format specifier
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fix from Rafael Wysocki: "Revert a recent ACPICA commit that introduced a suspend-to-RAM regression on one system due to incorrect information in its ACPI tables that had not been taken into consideration at all before (and everything worked), but the commit in question started to use it" * tag 'acpi-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: Revert "ACPICA: ACPI 2.0, Hardware: Add access_width/bit_offset support for acpi_hw_write()"
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management fixes from Rafael Wysocki: "Fixes for two recent regressions that may lead to degraded performance (operating performance points framework, intel_pstate). Specifics: - Fix a recent regression in the intel_pstate driver that may lead to degraded performance on some systems due to missing turbo state entry in the table returned by the ACPI _PSS object (Srinivas Pandruvada). - Fix a recent regression in the OPP (operating performance points) framework that may lead to degraded performance on some systems where the OPP table is created too early (Viresh Kumar)" * tag 'pm-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / OPP: Add 'UNKNOWN' status for shared_opp in struct opp_table cpufreq: intel_pstate: Adjust _PSS[0] freqeuency if needed
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
Pull HID subsystem fixes from Jiri Kosina: - kernel panic fix in hid-elo from Oliver Neukum - Surface Pro 3 device quirk from Benjamin Tissoires * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: multitouch: Add MT_QUIRK_NOT_SEEN_MEANS_UP to Surface Pro 3 HID: elo: kill not flush the work
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William Breathitt Gray authored
The inline isa_register_driver stub simply allows compilation on systems with CONFIG_ISA disabled; the dummy isa_register_driver does not register an isa_driver at all. The inline isa_register_driver should return -ENODEV to indicate lack of support when attempting to register an isa_driver on such a system with CONFIG_ISA disabled. Cc: Matthew Wilcox <matthew@wil.cx> Reported-by:
Sasha Levin <sasha.levin@oracle.com> Tested-by: Ye Xiaolong Signed-off-by:
William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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William Breathitt Gray authored
The isa_bus_init function must be called before drivers which utilize the ISA bus driver are registered. A race condition for initilization exists if device_initcall is used (the isa_bus_init callback is placed in the same initcall level as dependent drivers which use module_init). This patch ensures that isa_bus_init is called first by utilizing postcore_initcall in favor of device_initcall. Fixes: a5117ba7 ("[PATCH] Driver model: add ISA bus") Cc: Rene Herman <rene.herman@keyaccess.nl> Signed-off-by:
William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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William Breathitt Gray authored
With the introduction of the ISA_BUS_API Kconfig option, ISA-style drivers may be built for X86_64 architectures. This patch changes the ISA Kconfig option dependency of the WinSystems EBC-C384 watchdog timer driver to ISA_BUS_API, thus allowing it to build for X86_64 as it is expected to. Cc: Wim Van Sebroeck <wim@iguana.be> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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William Breathitt Gray authored
With the introduction of the ISA_BUS_API Kconfig option, ISA-style drivers may be built for X86_64 architectures. This patch changes the ISA Kconfig option dependency of the Apex Embedded Systems STX104 DAC driver to ISA_BUS_API, thus allowing it to build for X86_64 as it is expected to. Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
William Breathitt Gray <vilhelm.gray@gmail.com> Acked-by:
Jonathan Cameron <jic23@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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William Breathitt Gray authored
With the introduction of the ISA_BUS_API Kconfig option, ISA-style drivers may be built for X86_64 architectures. This patch changes the ISA Kconfig option dependency of the PC/104 drivers to ISA_BUS_API, thus allowing them to build for X86_64 as they are expected to. Cc: Alexandre Courbot <gnurou@gmail.com> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
William Breathitt Gray <vilhelm.gray@gmail.com> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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William Breathitt Gray authored
Several modern devices, such as PC/104 cards, are expected to run on modern systems via an ISA bus interface. Since ISA is a legacy interface for most modern architectures, ISA support should remain disabled in general. Support for ISA-style drivers should be enabled on a per driver basis. To allow ISA-style drivers on modern systems, this patch introduces the ISA_BUS_API and ISA_BUS Kconfig options. The ISA bus driver will now build conditionally on the ISA_BUS_API Kconfig option, which defaults to the legacy ISA Kconfig option. The ISA_BUS Kconfig option allows the ISA_BUS_API Kconfig option to be selected on architectures which do not enable ISA (e.g. X86_64). The ISA_BUS Kconfig option is currently only implemented for X86 architectures. Other architectures may have their own ISA_BUS Kconfig options added as required. Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
William Breathitt Gray <vilhelm.gray@gmail.com> Acked-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman authored
It's annoying to constantly see the same "Not yet implemented" message over and over with nothing able to be done about it, so rate limit it for now to keep user's logs "clean". Reported-by:
Lars Täuber <lars.taeuber@web.de> Tested-by:
Lars Täuber <lars.taeuber@web.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 17 Jun, 2016 4 commits
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Rafael J. Wysocki authored
* acpica-fixes: Revert "ACPICA: ACPI 2.0, Hardware: Add access_width/bit_offset support for acpi_hw_write()"
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Rafael J. Wysocki authored
* pm-opp: PM / OPP: Add 'UNKNOWN' status for shared_opp in struct opp_table * pm-cpufreq-fixes: cpufreq: intel_pstate: Adjust _PSS[0] freqeuency if needed
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Hans de Goede authored
This reverts commit b5e12ec3 ("Staging: rtl8188eu: rtw_efuse: Use sizeof type *pointer instead of sizeof type."). This commit is wrong, the rtw_malloc2d helper function takes the size of the array elements as its 3th argument, whereas sizeof(*eFuseWord) gives the size of a pointer instead of the size of a u16. Since sizeof(void *) > sizeof(u16) this has no adverse effects, but it is still wrong. Cc: Sandhya Bankar <bankarsandhya512@gmail.com> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Hans de Goede authored
This reverts commit 99aded71 ("Staging: drivers: rtl8188eu: use sizeof(*ptr) instead of sizeof(struct)"). This commit is wrong, as adapt->HalData has a type of "void *", so now we are allocating a much to small struct, which causes the driver to overwrite random memory which leads to a non working driver and various system crashes. Cc: Jacky Boen <aqiank@gmail.com> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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