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2018-01-22Input: docs - use PROPERTY_ENTRY_U32() directlyAndy Shevchenko1-3/+3
Instead of using PROPERTY_ENTRY_INTEGER() with explicitly supplied type, use PROPERTY_ENTRY_U32() dedicated macro. It will help modify internals of built-in device properties API. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-22Input: synaptics-rmi4 - log when we create a guest serio portDmitry Torokhov1-4/+5
To ease analyzing boot behavior from logs, let's log when we are about to register the pass-through serio port. Also, let's drop "Synaptics" prefix from the port name, as RMI4 is good enough indicator already, and having the prefix means that the name does not fit into serio->name field. While at it move from hard-coded seio->phys to one mentioning the sensor ID (such as "rmi4-00.fn03/serio0"). Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-22Input: synaptics-rmi4 - unmask F03 interrupts when port is openedDmitry Torokhov1-10/+54
Currently we register the pass-through serio port when we probe the F03 RMI function, and then, in sensor configure phase, we unmask interrupts. Unfortunately this is too late, as other drivers are free probe devices attached to the serio port as soon as it is probed. Because interrupts are masked, the IO times out, which may result in not being able to detect trackpoints on the pass-through port. To fix the issue we implement open() and close() methods for the pass-through serio port and unmask interrupts from there. We also move creation of the pass-through port form probe to configure stage, as RMI driver does not enable transport interrupt until all functions are probed (we should change this, but this is a separate topic). We also try to clear the pending data before unmasking interrupts, because some devices like to spam the system with multiple 0xaa 0x00 announcements, which may interfere with us trying to query ID of the device. Fixes: c5e8848fc98e ("Input: synaptics-rmi4 - add support for F03") Cc: stable@vger.kernel.org Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-22Input: synaptics-rmi4 - do not delete interrupt memory too earlyDmitry Torokhov1-7/+7
We want to free memory reserved for interrupt mask handling only after we free functions, as function drivers might want to mask interrupts. This is needed for the followup patch to the F03 that would implement unmasking and masking interrupts from the serio pass-through port open() and close() methods. Cc: stable@vger.kernel.org Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-22Input: ad7877 - use managed resource allocationsAndi Shyti1-44/+23
Use managed resource allocations to simplify error handling during probing failure and module exiting. With this all the goto labels in the probe function together with the cleanups in the remove function are unnecessary, therefore removed. Signed-off-by: Andi Shyti <andi@etezian.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-22Input: stmfts,s6sy671 - add SPDX identifierAndi Shyti2-20/+10
Replace the original license statement with the SPDX identifier. Update also the copyright owner adding myself as co-owner of the copyright. Signed-off-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-19Input: remove atmel-wm97xx touchscreen driverCorentin Labbe3-452/+0
Since AVR32 arch is gone, atmel-wm97xx driver is useless. In theory it could have been rewritten to work with AT91 devices, but the driver is from the platform data era, and a bit hard coded to work on AVR32 hardware variant of the AC97C peripheral, so let's remove it. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-19Input: fix small typos in force feedback documentationJean-François Têtu1-3/+3
Fix small typos in the Instructions and Uploading sections. Fix a typo in the start/stop effect example usage code. Signed-off-by: Jean-François Têtu <jean-francois.tetu@savoirfairelinux.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-18Input: cyapa - remove redundant assignment to 'pwr_cmd'Colin Ian King1-1/+1
The variable pwr_cmd is being assigned to cyapa->suspend_power_mode twice, once during the declaration and once after taking an interruptible mutex lock. Remove the redundant first assignment since the value is never read and it is outside the mutex lock. Cleans up clang warning: drivers/input/mouse/cyapa.c:743:5: warning: Value stored to 'pwr_cmd' during its initialization is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-18Input: remove at32psifCorentin Labbe3-368/+0
Since AVR32 arch is gone, at32psif driver is useless. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-17Input: inline macros for MODULE_LICENSE, etcJulia Lawall8-56/+17
Inline macro for MODULE_LICENSE to make the license information easy to find, eg with grep. Inline the other module-related macros at the same time. A simplified version of the semantic patch for the MODULE_LICENSE case is as follows: (http://coccinelle.lip6.fr/) // <smpl> @s@ identifier i; expression e; @@ @@ declarer name MODULE_LICENSE; identifier s.i; expression s.e; @@ MODULE_LICENSE( - i + e ); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> [dtor: added a couple of drivers missed by the script, removed a few unused DRIVER_VERSION macros] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: remove remaining unneeded MODULE_VERSION() usageGreg Kroah-Hartman2-2/+0
MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the remaining few input drivers that still used it (input-polldev and sparse-keymap). Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: remove unneeded MODULE_VERSION() usage in misc input driversGreg Kroah-Hartman3-5/+0
MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the misc input drivers. Along with this, some DRIVER_VERSION macros were removed as they are also pointless. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: remove unneeded MODULE_VERSION() usage in touchscreen driversGreg Kroah-Hartman4-7/+0
MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the touchscreen drivers. Along with this, some DRV_VERSION macros were removed as they are also pointless. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: elan_i2c - remove unneeded MODULE_VERSION() usageGreg Kroah-Hartman1-2/+0
MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the elan_i2c mouse driver. Now that this is gone, the ELAN_DRIVER_VERSION define was also removed as it was pointless. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: pmic8xxx-keypad - remove unneeded MODULE_VERSION() usageGreg Kroah-Hartman1-1/+0
MODULE_VERSION is useless for in-kernel drivers, so remove the use of it in the pmic8xxx-keyboard driver. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: synaptics_rmi4 - remove unneeded MODULE_VERSION() usageGreg Kroah-Hartman4-5/+0
MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the rmi4 drivers. Now that this is gone, the RMI_DRIVER_VERSION macro was also removed as it was pointless. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: remove unneeded DRIVER_LICENSE #definesGreg Kroah-Hartman4-8/+4
There is no need to #define the license of the driver, just put it in the MODULE_LICENSE() line directly as a text string. This allows tools that check that the module license matches the source code license to work properly, as there is no need to unwind the unneeded dereference. For some of these drivers, the #define is just a few lines above the MODULE_LICENSE() line, which is extra pointless. Reported-by: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: synaptics - reset the ABS_X/Y fuzz after initializing MT axesPeter Hutterer1-0/+10
input_mt_init_slots() resets the ABS_X/Y fuzz to 0 and expects the driver to call input_mt_report_pointer_emulation(). That is based on the MT position bits which are already defuzzed - hence a fuzz of 0. In the case of synaptics semi-mt devices, we report the ABS_X/Y axes manually. This results in the MT position being defuzzed but the single-touch emulation missing that defuzzing. Work around this by re-initializing the ABS_X/Y axes after the MT axis to get the same fuzz value back. https://bugs.freedesktop.org/show_bug.cgi?id=104533 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16Input: psmouse - fix Synaptics detection when protocol is disabledDmitry Torokhov1-13/+21
When Synaptics protocol is disabled, we still need to try and detect the hardware, so we can switch to SMBus device if SMbus is detected, or we know that it is Synaptics device and reset it properly for the bare PS/2 protocol. Fixes: c378b5119eb0 ("Input: psmouse - factor out common protocol probing code") Reported-by: Matteo Croce <mcroce@redhat.com> Tested-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-12Input: goodix - disable IRQs while suspendedHans de Goede1-2/+6
We should not try to do any i2c transfers before the controller is resumed (which happens before our resume method gets called). So we need to disable our IRQ while suspended to enforce this. The code paths for devices with GPIOs for the int and reset pins already disable the IRQ the through goodix_free_irq(). This commit also disables the IRQ while suspended for devices without GPIOs for the int and reset pins. This fixes the i2c bus sometimes getting stuck after a suspend/resume causing the touchscreen to sometimes not work after a suspend/resume. This has been tested on a GPD pocked device. BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10 BugLink: https://www.reddit.com/r/GPDPocket/comments/7niut2/fix_for_broken_touch_after_resume_all_linux/ Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-09Input: extend usable life of event timestamps to 2106 on 32 bit systemsDeepa Dinamani5-14/+32
The input events use struct timeval to store event time, unfortunately this structure is not y2038 safe and is being replaced in kernel with y2038 safe structures. Because of ABI concerns we can not change the size or the layout of structure input_event, so we opt to re-interpreting the 'seconds' part of timestamp as an unsigned value, effectively doubling the range of values, to year 2106. Newer glibc that has support for 32 bit applications to use 64 bit time_t supplies __USE_TIME_BITS64 define [1], that we can use to present the userspace with updated input_event layout. The updated layout will cause the compile time breakage, alerting applications and distributions maintainers to the issue. Existing 32 binaries will continue working without any changes until 2038. Ultimately userspace applications should switch to using monotonic or boot time clocks, as realtime clock is not very well suited for input event timestamps as it can go backwards (see a80b83b7b8 "Input: evdev - add CLOCK_BOOTTIME support" by by John Stultz). With monotonic clock the practical range of reported times will always fit into the pair of 32 bit values, as we do not expect any system to stay up for a hundred years without a single reboot. [1] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Peter Hutterer <peter.hutterer@who-t.net> Patchwork-Id: 10148083 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-09Input: silead - add support for capactive home button found on some x86 tabletsHans de Goede2-11/+37
On some x86 tablets with a silead touchscreen the windows logo on the front is a capacitive home button. Touching this button results in a touch with bits 12-15 of the Y coordinates set, while normally only the lower 12 are used. Detect this and report a KEY_LEFTMETA press when this happens. Note for now we only respond to the Y coordinate bits 12-15 containing 0x01, on some tablets *without* a capacative button I've noticed these bits containing 0x04 when crossing the edges of the screen. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-08Input: cyapa - remove duplicated macro definitionsRasmus Villemoes1-43/+0
Apart from whitespace differences, this block of macros is repeated twice: $ x=./drivers/input/mouse/cyapa_gen3.c; diff -w -u <(sed -n '139,181p' $x) <(sed -n '182,224p' $x) $ Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-05Input: synaptic_rmi4 - remove duplicate include in F34Pravin Shedge1-1/+0
This duplicate include has been found with scripts/checkincludes.pl but it has been removed manually to avoid removing false positives. Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com> Patchwork-Id: 10092051 Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-05Input: raydium_i2c_ts - include hardware version in firmware nameJeffrey Lin1-2/+12
Add hardware version to the firmware file name to handle scenarios where single system image supports variety of devices. Signed-off-by: Jeffrey Lin <jeffrey.lin@rad-ic.com> Patchwork-Id: 10127677 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01Input: tps65218-pwrbutton - fix a spelling mistake in KconfigZhuohua Li1-1/+1
Fix a spelling mistake: buttong -> button Signed-off-by: Zhuohua Li <lizhuohua1994@gmail.com> Patchwork-Id: 10134469 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01Input: gpio_tilt - delete driverLinus Walleij6-407/+0
This driver was merged in 2011 as a tool for detecting the orientation of a screen. The device driver assumes board file setup using the platform data from <linux/input/gpio_tilt.h>. But no boards in the kernel tree defines this platform data. As I am faced with refactoring drivers to use GPIO descriptors and pass decriptor tables from boards, or use the device tree device drivers like these creates a serious problem: I cannot fix them and cannot test them, not even compile-test them with a system actually using it (no in-tree boardfile). I suggest to delete this driver and rewrite it using device tree if it is still in use on actively maintained systems. I can also offer to rewrite it out of the blue using device tree if someone promise to test it and help me iterate it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Patchwork-Id: 10133609 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01Input: uinput - use monotonic times for timestampsDeepa Dinamani1-1/+4
struct timeval which is part of struct input_event to maintain the event times is not y2038 safe. Real time timestamps are also not ideal for input_event as this time can go backwards as noted in the patch a80b83b7b8 by John Stultz. The patch switches the timestamps to use monotonic time from realtime time. This is assuming no one is using absolute times from these timestamps. The structure to maintain input events will be changed in a different patch. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Peter Hutterer <peter.hutterer@who-t.net> Patchwork-Id: 10118255 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01Input: hp_sdc - convert to ktime_get()Arnd Bergmann2-11/+8
This gets rid of the deprecated do_gettimeofday() call in favor of ktime_get(), which is also more reliable as it uses monotonic times. The code now gets a bit simpler. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Patchwork-Id: 10076621 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01Input: hil_mlc - convert timeval to jiffiesWEN Pingbo3-17/+10
struct timeval is not y2038 safe, and what mlc->instart do is scheduling a task in a fixed timeout, so jiffies is the simplest choice here. In hilse_donode(), the expires in mod_timer equals jiffies + intimeout - (now - instart) If we use jiffies in 'now', the expires equals instart + intimeout So, all we need to do is that making sure expires is a future timestamp before passed it to mod_timer. [arnd: slightly simplified patch further] Link: https://lists.linaro.org/pipermail/y2038/2015-October/000937.html Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Patchwork-Id: 10076615 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01Input: hil_mlc - convert timeval to time64_tWEN Pingbo2-6/+4
Since mlc->lcv_t is only interested in seconds, directly using time64_t here. This gets rid of the deprecated do_gettimeofday() and avoids problems with time going backwards since we now use the monotonic clocksource. Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Patchwork-Id: 10076611 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-10Input: gamecon - mark expected switch fall-throughsGustavo A. R. Silva1-0/+3
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114761 Addresses-Coverity-ID: 114762 Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-10Input: sidewinder - mark expected switch fall-throughsGustavo A. R. Silva1-5/+5
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114763 Addresses-Coverity-ID: 114764 Addresses-Coverity-ID: 114765 Addresses-Coverity-ID: 114766 Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-10Input: spaceball - mark expected switch fall-throughsGustavo A. R. Silva1-0/+4
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114767 Addresses-Coverity-ID: 114768 Addresses-Coverity-ID: 114769 Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-10Input: uinput - unlock on allocation failure in ioctlDan Carpenter1-2/+4
We have to unlock before returning if input_allocate_device() fails. Fixes: 04ce40a61a91 ("Input: uinput - remove uinput_allocate_device()") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-10Input: add support for the Samsung S6SY761 touchscreenAndi Shyti4-0/+605
The S6SY761 touchscreen is a capicitive multi-touch controller for mobile use. It's connected with i2c at the address 0x48. This commit provides a basic version of the driver which can handle only initialization, touch events and power states. The controller is controlled by a firmware which, in the version I currently have, doesn't provide all the possible functionalities mentioned in the datasheet. Signed-off-by: Andi Shyti <andi.shyti@samsung.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-10Input: add support for HiDeep touchscreenAnthony Kim5-0/+1175
The HiDeep touchscreen device is a capacitive multi-touch controller mainly for multi-touch supported devices use. It use I2C interface for communication to IC and provide axis X, Y, Z locations for ten finger touch through input event interface to userspace. It support the Crimson and the Lime two type IC. They are different the number of channel supported and FW size. But the working protocol is same. Signed-off-by: Anthony Kim <anthony.kim@hideep.com> Acked-by: Rob Herring <robh+dt@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-07Input: st1232 - remove obsolete platform device supportGeert Uytterhoeven2-27/+3
Commit 1fa59bda21c7fa36 ("ARM: shmobile: Remove legacy board code for Armadillo-800 EVA"), removed the last user of st1232_pdata and the "st1232-ts" platform device. All remaining users use DT. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-05Linux 4.14-rc8Linus Torvalds1-1/+1
2017-11-05x86/module: Detect and skip invalid relocationsJosh Poimboeuf1-0/+13
There have been some cases where external tooling (e.g., kpatch-build) creates a corrupt relocation which targets the wrong address. This is a silent failure which can corrupt memory in unexpected places. On x86, the bytes of data being overwritten by relocations are always initialized to zero beforehand. Use that knowledge to add sanity checks to detect such cases before they corrupt memory. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: jeyu@kernel.org Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/37450d6c6225e54db107fba447ce9e56e5f758e9.1509713553.git.jpoimboe@redhat.com [ Restructured the messages, as it's unclear whether the relocation or the target is corrupted. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-04objtool: Prevent GCC from merging annotate_unreachable(), take 2Josh Poimboeuf1-2/+2
This fixes the following warning with GCC 4.6: mm/migrate.o: warning: objtool: migrate_misplaced_transhuge_page()+0x71: unreachable instruction The problem is that the compiler merged identical annotate_unreachable() inline asm blocks, resulting in a missing 'unreachable' annotation. This problem happened before, and was partially fixed with: 3d1e236022cc ("objtool: Prevent GCC from merging annotate_unreachable()") That commit tried to ensure that each instance of the annotate_unreachable() inline asm statement has a unique label. It used the __LINE__ macro to generate the label number. However, even the line number isn't necessarily unique when used in an inline function with multiple callers (in this case, __alloc_pages_node()'s use of VM_BUG_ON). Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kbuild-all@01.org Cc: tipbuild@zytor.com Fixes: 3d1e236022cc ("objtool: Prevent GCC from merging annotate_unreachable()") Link: http://lkml.kernel.org/r/20171103221941.cajpwszir7ujxyc4@treble Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-04Revert "x86/mm: Stop calling leave_mm() in idle code"Andy Lutomirski5-7/+25
This reverts commit 43858b4f25cf0adc5c2ca9cf5ce5fdf2532941e5. The reason I removed the leave_mm() calls in question is because the heuristic wasn't needed after that patch. With the original version of my PCID series, we never flushed a "lazy cpu" (i.e. a CPU running kernel thread) due a flush on the loaded mm. Unfortunately, that caused architectural issues, so now I've reinstated these flushes on non-PCID systems in: commit b956575bed91 ("x86/mm: Flush more aggressively in lazy TLB mode"). That, in turn, gives us a power management and occasionally performance regression as compared to old kernels: a process that goes into a deep idle state on a given CPU and gets its mm flushed due to activity on a different CPU will wake the idle CPU. Reinstate the old ugly heuristic: if a CPU goes into ACPI C3 or an intel_idle state that is likely to cause a TLB flush gets its mm switched to init_mm before going idle. FWIW, this heuristic is lousy. Whether we should change CR3 before idle isn't a good hint except insofar as the performance hit is a bit lower if the TLB is getting flushed by the idle code anyway. What we really want to know is whether we anticipate being idle long enough that the mm is likely to be flushed before we wake up. This is more a matter of the expected latency than the idle state that gets chosen. This heuristic also completely fails on systems that don't know whether the TLB will be flushed (e.g. AMD systems?). OTOH it may be a bit obsolete anyway -- PCID systems don't presently benefit from this heuristic at all. We also shouldn't do this callback from innermost bit of the idle code due to the RCU nastiness it causes. All the information need is available before rcu_idle_enter() needs to happen. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bpetkov@suse.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 43858b4f25cf "x86/mm: Stop calling leave_mm() in idle code" Link: http://lkml.kernel.org/r/c513bbd4e653747213e05bc7062de000bf0202a5.1509793738.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-04Documentation: Add Frank Rowand to list of enforcement statement endorsersFrank Rowand1-0/+1
Add my name to the list. Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04doc: add Willy Tarreau to the list of enforcement statement endorsersWilly Tarreau1-0/+1
add me to the list. Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04tools/headers: Synchronize kernel ABI headersIngo Molnar26-16/+36
After the SPDX license tags were added a number of tooling headers got out of sync with their kernel variants, generating lots of build warnings. Sync them: - tools/arch/x86/include/asm/disabled-features.h, tools/arch/x86/include/asm/required-features.h, tools/include/linux/hash.h: Remove the SPDX tag where the kernel version does not have it. - tools/include/asm-generic/bitops/__fls.h, tools/include/asm-generic/bitops/arch_hweight.h, tools/include/asm-generic/bitops/const_hweight.h, tools/include/asm-generic/bitops/fls.h, tools/include/asm-generic/bitops/fls64.h, tools/include/uapi/asm-generic/ioctls.h, tools/include/uapi/asm-generic/mman-common.h, tools/include/uapi/sound/asound.h, tools/include/uapi/linux/kvm.h, tools/include/uapi/linux/perf_event.h, tools/include/uapi/linux/sched.h, tools/include/uapi/linux/vhost.h, tools/include/uapi/sound/asound.h: Add the SPDX tag of the respective kernel header. - tools/include/uapi/linux/bpf_common.h, tools/include/uapi/linux/fcntl.h, tools/include/uapi/linux/hw_breakpoint.h, tools/include/uapi/linux/mman.h, tools/include/uapi/linux/stat.h, Change the tag to the kernel header version: -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ Also sync other header details: - include/uapi/sound/asound.h: Fix pointless end of line whitespace noise the header grew in this cycle. - tools/arch/x86/lib/memcpy_64.S: Sync the code and add tools/include/asm/export.h with dummy wrappers to support building the kernel side code in a tooling header environment. - tools/include/uapi/asm-generic/mman.h, tools/include/uapi/linux/bpf.h: Sync other details that don't impact tooling's use of the ABIs. Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-04objtool: Resync objtool's instruction decoder source code copy with the kernel's latest versionJosh Poimboeuf1-0/+1
This fixes the following warning: warning: objtool: x86 instruction decoder differs from kernel Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.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/013315a808ccf5580abc293808827c8e2b5e1354.1509719152.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-03Input: sparse-keymap - send sync event for KE_SW/KE_VSWStefan Brüns1-0/+1
Sync events are sent by sparse_keymap_report_entry for normal KEY_* events, and are generated by several drivers after generating SW_* events, so sparse_keymap_report_entry should do the same. Without the sync, events are accumulated in the kernel. Currently, no driver uses sparse-keymap for SW_* events, but it is required for the intel-vbtn platform driver to generate SW_TABLET_MODE events. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-03Input: ar1021_i2c - set INPUT_PROP_DIRECTMartin Kepplinger1-0/+1
If INPUT_PROP_DIRECT is set, userspace doesn't have to fall back to old ways of identifying touchscreen devices. Let's add it. Signed-off-by: Martin Kepplinger <martink@posteo.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-03Input: convert autorepeat timer to use timer_setup()Kees Cook1-6/+5
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>