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2018-04-10Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds
Pull c6x updates from Mark Salter. * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: c6x: pass endianness info to sparse c6x: fix platforms/plldata.c get_coreid build error c6x: remove unused KTHREAD_SIZE definition
2018-04-10Merge tag 'mips_4.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips Pull MIPS updates from James Hogan: "These are the main MIPS changes for 4.17. Rough overview: (1) generic platform: Add support for Microsemi Ocelot SoCs (2) crypto: Add CRC32 and CRC32C HW acceleration module (3) Various cleanups and misc improvements More detailed summary: Miscellaneous: - hang more efficiently on halt/powerdown/restart - pm-cps: Block system suspend when a JTAG probe is present - expand make help text for generic defconfigs - refactor handling of legacy defconfigs - determine the entry point from the ELF file header to fix microMIPS for certain toolchains - introduce isa-rev.h for MIPS_ISA_REV and use to simplify other code Minor cleanups: - DTS: boston/ci20: Unit name cleanups and correction - kdump: Make the default for PHYSICAL_START always 64-bit - constify gpio_led in Alchemy, AR7, and TXX9 - silence a couple of W=1 warnings - remove duplicate includes Platform support: Generic platform: - add support for Microsemi Ocelot - dt-bindings: Add vendor prefix for Microsemi Corporation - dt-bindings: Add bindings for Microsemi SoCs - add ocelot SoC & PCB123 board DTS files - MAINTAINERS: Add entry for Microsemi MIPS SoCs - enable crc32-mips on r6 configs ath79: - fix AR724X_PLL_REG_PCIE_CONFIG offset BCM47xx: - firmware: Use mac_pton() for MAC address parsing - add Luxul XAP1500/XWR1750 WiFi LEDs - use standard reset button for Luxul XWR-1750 BMIPS: - enable CONFIG_BRCMSTB_PM in bmips_stb_defconfig for build coverage - add STB PM, wake-up timer, watchdog DT nodes Octeon: - drop '.' after newlines in printk calls ralink: - pci-mt7621: Enable PCIe on MT7688" * tag 'mips_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (37 commits) MIPS: BCM47XX: Use standard reset button for Luxul XWR-1750 MIPS: BCM47XX: Add Luxul XAP1500/XWR1750 WiFi LEDs MIPS: Make the default for PHYSICAL_START always 64-bit MIPS: Use the entry point from the ELF file header MAINTAINERS: Add entry for Microsemi MIPS SoCs MIPS: generic: Add support for Microsemi Ocelot MIPS: mscc: Add ocelot PCB123 device tree MIPS: mscc: Add ocelot dtsi dt-bindings: mips: Add bindings for Microsemi SoCs dt-bindings: Add vendor prefix for Microsemi Corporation MIPS: ath79: Fix AR724X_PLL_REG_PCIE_CONFIG offset MIPS: pci-mt7620: Enable PCIe on MT7688 MIPS: pm-cps: Block system suspend when a JTAG probe is present MIPS: VDSO: Replace __mips_isa_rev with MIPS_ISA_REV MIPS: BPF: Replace __mips_isa_rev with MIPS_ISA_REV MIPS: cpu-features.h: Replace __mips_isa_rev with MIPS_ISA_REV MIPS: Introduce isa-rev.h to define MIPS_ISA_REV MIPS: Hang more efficiently on halt/powerdown/restart FIRMWARE: bcm47xx_nvram: Replace mac address parsing MIPS: BMIPS: Add Broadcom STB watchdog nodes ...
2018-04-10Merge tag 'trace-v4.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "New features: - Tom Zanussi's extended histogram work. This adds the synthetic events to have histograms from multiple event data Adds triggers "onmatch" and "onmax" to call the synthetic events Several updates to the histogram code from this - Allow way to nest ring buffer calls in the same context - Allow absolute time stamps in ring buffer - Rewrite of filter code parsing based on Al Viro's suggestions - Setting of trace_clock to global if TSC is unstable (on boot) - Better OOM handling when allocating large ring buffers - Added initcall tracepoints (consolidated initcall_debug code with them) And other various fixes and clean ups" * tag 'trace-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (68 commits) init: Have initcall_debug still work without CONFIG_TRACEPOINTS init, tracing: Have printk come through the trace events for initcall_debug init, tracing: instrument security and console initcall trace events init, tracing: Add initcall trace events tracing: Add rcu dereference annotation for test func that touches filter->prog tracing: Add rcu dereference annotation for filter->prog tracing: Fixup logic inversion on setting trace_global_clock defaults tracing: Hide global trace clock from lockdep ring-buffer: Add set/clear_current_oom_origin() during allocations ring-buffer: Check if memory is available before allocation lockdep: Add print_irqtrace_events() to __warn vsprintf: Do not preprocess non-dereferenced pointers for bprintf (%px and %pK) tracing: Uninitialized variable in create_tracing_map_fields() tracing: Make sure variable string fields are NULL-terminated tracing: Add action comparisons when testing matching hist triggers tracing: Don't add flag strings when displaying variable references tracing: Fix display of hist trigger expressions containing timestamps ftrace: Drop a VLA in module_exists() tracing: Mention trace_clock=global when warning about unstable clocks tracing: Default to using trace_global_clock if sched_clock is unstable ...
2018-04-10virtio_balloon: export hugetlb page allocation countsJonathan Helman
Export the number of successful and failed hugetlb page allocations via the virtio balloon driver. These 2 counts come directly from the vm_events HTLB_BUDDY_PGALLOC and HTLB_BUDDY_PGALLOC_FAIL. Signed-off-by: Jonathan Helman <jonathan.helman@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Jason Wang <jasowang@redhat.com>
2018-04-10tracing/uprobe_event: Fix strncpy corner caseMasami Hiramatsu
Fix string fetch function to terminate with NUL. It is OK to drop the rest of string. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <songliubraving@fb.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: security@kernel.org Cc: 范龙飞 <long7573@126.com> Fixes: 5baaa59ef09e ("tracing/probes: Implement 'memory' fetch method for uprobes") Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-04-10Merge tag 'libnvdimm-for-4.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "This cycle was was not something I ever want to repeat as there were several late changes that have only now just settled. Half of the branch up to commit d2c997c0f145 ("fs, dax: use page->mapping to warn...") have been in -next for several releases. The of_pmem driver and the address range scrub rework were late arrivals, and the dax work was scaled back at the last moment. The of_pmem driver missed a previous merge window due to an oversight. A sense of obligation to rectify that miss is why it is included for 4.17. It has acks from PowerPC folks. Stephen reported a build failure that only occurs when merging it with your latest tree, for now I have fixed that up by disabling modular builds of of_pmem. A test merge with your tree has received a build success report from the 0day robot over 156 configs. An initial version of the ARS rework was submitted before the merge window. It is self contained to libnvdimm, a net code reduction, and passing all unit tests. The filesystem-dax changes are based on the wait_var_event() functionality from tip/sched/core. However, late review feedback showed that those changes regressed truncate performance to a large degree. The branch was rewound to drop the truncate behavior change and now only includes preparation patches and cleanups (with full acks and reviews). The finalization of this dax-dma-vs-trnucate work will need to wait for 4.18. Summary: - A rework of the filesytem-dax implementation provides for detection of unmap operations (truncate / hole punch) colliding with in-progress device-DMA. A fix for these collisions remains a work-in-progress pending resolution of truncate latency and starvation regressions. - The of_pmem driver expands the users of libnvdimm outside of x86 and ACPI to describe an implementation of persistent memory on PowerPC with Open Firmware / Device tree. - Address Range Scrub (ARS) handling is completely rewritten to account for the fact that ARS may run for 100s of seconds and there is no platform defined way to cancel it. ARS will now no longer block namespace initialization. - The NVDIMM Namespace Label implementation is updated to handle label areas as small as 1K, down from 128K. - Miscellaneous cleanups and updates to unit test infrastructure" * tag 'libnvdimm-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (39 commits) libnvdimm, of_pmem: workaround OF_NUMA=n build error nfit, address-range-scrub: add module option to skip initial ars nfit, address-range-scrub: rework and simplify ARS state machine nfit, address-range-scrub: determine one platform max_ars value powerpc/powernv: Create platform devs for nvdimm buses doc/devicetree: Persistent memory region bindings libnvdimm: Add device-tree based driver libnvdimm: Add of_node to region and bus descriptors libnvdimm, region: quiet region probe libnvdimm, namespace: use a safe lookup for dimm device name libnvdimm, dimm: fix dpa reservation vs uninitialized label area libnvdimm, testing: update the default smart ctrl_temperature libnvdimm, testing: Add emulation for smart injection commands nfit, address-range-scrub: introduce nfit_spa->ars_state libnvdimm: add an api to cast a 'struct nd_region' to its 'struct device' nfit, address-range-scrub: fix scrub in-progress reporting dax, dm: allow device-mapper to operate without dax support dax: introduce CONFIG_DAX_DRIVER fs, dax: use page->mapping to warn if truncate collides with a busy page ext2, dax: introduce ext2_dax_aops ...
2018-04-10Merge tag 'rtc-4.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "This contains a few series that have been in preparation for a while and that will help systems with RTCs that will fail in 2038, 2069 or 2100. Subsystem: - Add tracepoints - Rework of the RTC/nvmem API to allow drivers to discard struct nvmem_config after registration - New range API, drivers can now expose the useful range of the RTC - New offset API the core is now able to add an offset to the RTC time, modifying the supported range. - Multiple rtc_time64_to_tm fixes - Handle time_t overflow on 32 bit platforms in the core instead of letting drivers do crazy things. - remove rtc_control API New driver: - Intersil ISL12026 Drivers: - Drivers exposing the RTC non volatile memory have been converted to use nvmem - Removed useless time and date validation - Removed an indirection pattern that was a cargo cult from ancient drivers - Removed VLA usage - Fixed a possible race condition in probe functions - AB8540 support is dropped from ab8500 - pcf85363 now has alarm support" * tag 'rtc-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (128 commits) rtc: snvs: Fix usage of snvs_rtc_enable rtc: mt7622: fix module autoloading for OF platform drivers rtc: isl12022: use true and false for boolean values rtc: ab8500: Drop AB8540 support rtc: remove a warning during scripts/kernel-doc step rtc: 88pm860x: remove artificial limitation rtc: 88pm80x: remove artificial limitation rtc: st-lpc: remove artificial limitation rtc: mrst: remove artificial limitation rtc: mv: remove artificial limitation rtc: hctosys: Ensure system time doesn't overflow time_t parisc: time: stop validating rtc_time in .read_time rtc: pcf85063: fix clearing bits in pcf85063_start_clock rtc: at91sam9: Set name of regmap_config rtc: s5m: Remove VLA usage rtc: s5m: Move enum from rtc.h to rtc-s5m.c rtc: remove VLA usage rtc: Add useful timestamp definitions rtc: Add one offset seconds to expand RTC range rtc: Factor out the RTC range validation into rtc_valid_range() ...
2018-04-10Merge tag 'fbdev-v4.17' of git://github.com/bzolnier/linuxLinus Torvalds
Pull fbdev updates from Bartlomiej Zolnierkiewicz: "There is nothing really major here, just a couple of small bugfixes, improvements and cleanups: - make it possible to load radeonfb driver when offb driver is loaded first (Mathieu Malaterre) - fix memory leak in offb driver (Mathieu Malaterre) - fix unaligned access in udlfb driver (Ladislav Michl) - convert atmel_lcdfb driver to use GPIO descriptors (Ludovic Desroches) - avoid mismatched prototypes in sisfb driver (Arnd Bergmann) - remove VLA usage from viafb driver (Gustavo A. R. Silva) - add missing help text to FB_I810_I2 config option (Ulf Magnusson) - misc fixes (Gustavo A. R. Silva, Colin Ian King, Markus Elfring) - remove dead code from s3c-fb driver for Exynos and S5PV210 platforms - misc cleanups (Corentin Labbe, Ladislav Michl, Ulf Magnusson, Vladimir Zapolskiy, Markus Elfring)" * tag 'fbdev-v4.17' of git://github.com/bzolnier/linux: (32 commits) video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms video: au1100fb: Delete an unnecessary variable initialisation in au1100fb_drv_probe() video: au1100fb: Improve a size determination in au1100fb_drv_probe() video: au1100fb: Delete an error message for a failed memory allocation in au1100fb_drv_probe() video/console/sticore: Delete an error message for a failed memory allocation in sti_try_rom_generic() video: ARM CLCD: Improve a size determination in clcdfb_probe() video: ARM CLCD: Delete an error message for a failed memory allocation in clcdfb_probe() video: matroxfb: Delete an error message for a failed memory allocation in matroxfb_crtc2_probe() video: s3c-fb: Improve a size determination in s3c_fb_probe() video: s3c-fb: Delete an error message for a failed memory allocation in s3c_fb_probe() video: fsl-diu-fb: Delete an error message for a failed memory allocation in fsl_diu_init() video: ssd1307fb: Improve a size determination in ssd1307fb_probe() video: smscufx: Delete an error message for a failed memory allocation in ufx_realloc_framebuffer() video: smscufx: Return an error code only as a constant in ufx_realloc_framebuffer() video: smscufx: Less checks in ufx_usb_probe() after error detection video: udlfb: Return an error code only as a constant in dlfb_realloc_framebuffer() video/fbdev/stifb: Delete an error message for a failed memory allocation in stifb_init_fb() video/fbdev/stifb: Return -ENOMEM after a failed kzalloc() in stifb_init_fb() video: fbdev: aty128fb: use true and false for boolean values fbdev: aty: fix missing indentation in if statement ...
2018-04-10Merge tag 'sound-fix-4.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "The main purpose of this pull request is a fix for a regression in the recent PCM OSS emulation code that may lead to RCU stall. Since syzkaller hits this too often, I send the pull request now with a minimal collection. Possibly another pull request may follow before RC1. The other fixes here are for USB-audio class 2 and 3 to improve the parser for the clock descriptors. These are rather cleanups but good for security, too. Last but not least, another included fix is the trivial one to remove superfluous WARN_ON() that annoyed syzbot" * tag 'sound-fix-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: pcm: Remove WARN_ON() at snd_pcm_hw_params() error ALSA: pcm: Fix endless loop for XRUN recovery in OSS emulation ALSA: usb-audio: Add sanity checks in UAC3 clock parsers ALSA: usb-audio: More strict sanity checks for clock parsers ALSA: usb-audio: Refactor clock finder helpers
2018-04-10Merge tag 'media/v4.17-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: "A series of media updates/fixes for 4.17. There are two important core fix patches in this series: - A regression fix on Kernel 4.16 with causes it to not work with some input devices that depend on media core - A fix at compat32 bits with causes it to OOPS on overlay, and affects the Kernels where the CVE-2017-13166 was backported The remaining ones are other random fixes at the documentation and on drivers. The biggest part of this series is a set of 18 patches for the Intel atomisp driver. Currently, it produces hundreds of warnings/errors on sparse/smatch, causing me to sometimes ignore new warnings on other drivers that are not so broken. This driver is on really poor state, even for staging standards: it has several layers of abstraction on it, and it supports two different hardware. Selecting between them require to add a define (there isn't even a Kconfig option for such purpose). Just on this smatch cleanup, I could easily get rid of 8 "do-nothing" files. So, I'm seriously considering its removal from upstream, if I don't see any real work on addressing the problems there along this year" * tag 'media/v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (48 commits) media: v4l2-core: fix size of devnode_nums[] bitarray media: v4l2-compat-ioctl32: don't oops on overlay media: i2c: adv748x: afe: fix sparse warning media: extended-controls.rst: transmitter -> receiver media: staging: atomisp: stop duplicating input format types media: staging: atomisp: get rid of an unused var media: staging: atomisp: stop mixing enum types media: staging: atomisp: get rid of some static warnings media: staging: atomisp: use %p to print pointers media: staging: atomisp: remove an useless check media: staging: atomisp: avoid a warning if 32 bits build media: staging: atomisp: don't access a NULL var media: staging: atomisp: Get rid of *default.host.[ch] media: staging: atomisp: get rid of an unused function media: staging: atomisp: remove unused set_pd_base() media: staging: atomisp: fix endianess issues media: staging: atomisp: add a missing include media: staging: atomisp: get rid of stupid statements media: staging: atomisp: declare static vars as such media: staging: atomisp: ia_css_output.host: don't use var before check ...
2018-04-10xfs: only cancel cow blocks when truncating the data forkDarrick J. Wong
In xfs_itruncate_extents, only cancel cow blocks and clear the reflink flag if we were asked to truncate the data fork. Attr fork blocks cannot be shared, so this makes no sense. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2018-04-10ip_gre: clear feature flags when incompatible o_flags are setSabrina Dubroca
Commit dd9d598c6657 ("ip_gre: add the support for i/o_flags update via netlink") added the ability to change o_flags, but missed that the GSO/LLTX features are disabled by default, and only enabled some gre features are unused. Thus we also need to disable the GSO/LLTX features on the device when the TUNNEL_SEQ or TUNNEL_CSUM flags are set. These two examples should result in the same features being set: ip link add gre_none type gre local 192.168.0.10 remote 192.168.0.20 ttl 255 key 0 ip link set gre_none type gre seq ip link add gre_seq type gre local 192.168.0.10 remote 192.168.0.20 ttl 255 key 1 seq Fixes: dd9d598c6657 ("ip_gre: add the support for i/o_flags update via netlink") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Xin Long <lucien.xin@gmail.com> Acked-by: William Tu <u9012063@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-11Kbuild: fix # escaping in .cmd files for future MakeRasmus Villemoes
I tried building using a freshly built Make (4.2.1-69-g8a731d1), but already the objtool build broke with orc_dump.c: In function ‘orc_dump’: orc_dump.c:106:2: error: ‘elf_getshnum’ is deprecated [-Werror=deprecated-declarations] if (elf_getshdrnum(elf, &nr_sections)) { Turns out that with that new Make, the backslash was not removed, so cpp didn't see a #include directive, grep found nothing, and -DLIBELF_USE_DEPRECATED was wrongly put in CFLAGS. Now, that new Make behaviour is documented in their NEWS file: * WARNING: Backward-incompatibility! Number signs (#) appearing inside a macro reference or function invocation no longer introduce comments and should not be escaped with backslashes: thus a call such as: foo := $(shell echo '#') is legal. Previously the number sign needed to be escaped, for example: foo := $(shell echo '\#') Now this latter will resolve to "\#". If you want to write makefiles portable to both versions, assign the number sign to a variable: C := \# foo := $(shell echo '$C') This was claimed to be fixed in 3.81, but wasn't, for some reason. To detect this change search for 'nocomment' in the .FEATURES variable. This also fixes up the two make-cmd instances to replace # with $(pound) rather than with \#. There might very well be other places that need similar fixup in preparation for whatever future Make release contains the above change, but at least this builds an x86_64 defconfig with the new make. Link: https://bugzilla.kernel.org/show_bug.cgi?id=197847 Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-04-10x86/apic: Fix signedness bug in APIC ID validity checksLi RongQing
The APIC ID as parsed from ACPI MADT is validity checked with the apic->apic_id_valid() callback, which depends on the selected APIC type. For non X2APIC types APIC IDs >= 0xFF are invalid, but values > 0x7FFFFFFF are detected as valid. This happens because the 'apicid' argument of the apic_id_valid() callback is type 'int'. So the resulting comparison apicid < 0xFF evaluates to true for all unsigned int values > 0x7FFFFFFF which are handed to default_apic_id_valid(). As a consequence, invalid APIC IDs in !X2APIC mode are considered valid and accounted as possible CPUs. Change the apicid argument type of the apic_id_valid() callback to u32 so the evaluation is unsigned and returns the correct result. [ tglx: Massaged changelog ] Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Cc: jgross@suse.com Cc: Dou Liyang <douly.fnst@cn.fujitsu.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/1523322966-10296-1-git-send-email-lirongqing@baidu.com
2018-04-10MAINTAINERS: Migrate oxnas list to groups.ioNeil Armstrong
The linux-oxnas migrates from tuxfamily to groups.io for a simpler administration and maintainance. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-04-10arm: npcm: enable L2 cache in NPCM7xx architectureTomer Maimon
This patch Enable ARM L2 cache module in Nuvoton NPCM7xx BMC by adding L2 cache parameters into NPCM7xx DT machine start structure. At patch V7 arm: npcm: add basic support for Nuvoton BMCs we got comments regarding the flags use in L2 cache module. - https://www.spinics.net/lists/arm-kernel/msg613212.html After checking again the L2 cache use in the NPCM7xx, the only L2 cache flag we need to set is L2C_AUX_CTRL_SHARED_OVERRIDE and it is done in the device tree: https://patchwork.kernel.org/patch/10063497/ L2 cache flag mask allowed all the flag option. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-04-10backing: silence compiler warning using __printfMathieu Malaterre
__printf marker was added in commit d2cc4dde9206 ("bdi_register: add __printf verification, fix arg mismatch") for function `bdi_register` since it is useful to verify format and arguments. Apply equivalent gcc attribute to `bdi_register_va`. Remove warning triggered with W=1: mm/backing-dev.c:881:2: warning: function might be possible candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format] Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: remove code for dealing with remapping queueMing Lei
Firstly, from commit 4b855ad37194 ("blk-mq: Create hctx for each present CPU), blk-mq doesn't remap queue any more after CPU topo is changed. Secondly, set->nr_hw_queues can't be bigger than nr_cpu_ids, and now we map all possible CPUs to hw queues, so at least one CPU is mapped to each hctx. So queue mapping has became static and fixed just like percpu variable, and we don't need to handle queue remapping any more. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: reimplement blk_mq_hw_queue_mappedMing Lei
Now the actual meaning of queue mapped is that if there is any online CPU mapped to this hctx, so implement blk_mq_hw_queue_mapped() in this way. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: don't check queue mapped in __blk_mq_delay_run_hw_queue()Ming Lei
There are several reasons for removing the check: 1) blk_mq_hw_queue_mapped() returns true always now since each hctx may be mapped by one CPU at least 2) when there isn't any online CPU mapped to this hctx, there won't be any IO queued to this CPU, blk_mq_run_hw_queue() only runs queue if there is IO queued to this hctx 3) If __blk_mq_delay_run_hw_queue() is called by blk_mq_delay_run_hw_queue(), which is run from blk_mq_dispatch_rq_list() or scsi_mq_get_budget(), and the hctx to be handled has to be mapped. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: remove blk_mq_delay_queue()Ming Lei
No driver uses this interface any more, so remove it. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: introduce blk_mq_hw_queue_first_cpu() to figure out first cpuMing Lei
This patch introduces helper of blk_mq_hw_queue_first_cpu() for figuring out the hctx's first cpu, and code duplication can be avoided. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: avoid to write intermediate result to hctx->next_cpuMing Lei
This patch figures out the final selected CPU, then writes it to hctx->next_cpu once, then we can avoid to intermediate next cpu observed from other dispatch paths. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: don't keep offline CPUs mapped to hctx 0Ming Lei
From commit 4b855ad37194 ("blk-mq: Create hctx for each present CPU), blk-mq doesn't remap queue after CPU topo is changed, that said when some of these offline CPUs become online, they are still mapped to hctx 0, then hctx 0 may become the bottleneck of IO dispatch and completion. This patch sets up the mapping from the beginning, and aligns to queue mapping for PCI device (blk_mq_pci_map_queues()). Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Cc: Keith Busch <keith.busch@intel.com> Cc: stable@vger.kernel.org Fixes: 4b855ad37194 ("blk-mq: Create hctx for each present CPU) Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: make sure that correct hctx->next_cpu is setMing Lei
From commit 20e4d81393196 (blk-mq: simplify queue mapping & schedule with each possisble CPU), one hctx can be mapped from all offline CPUs, then hctx->next_cpu can be set as wrong. This patch fixes this issue by making hctx->next_cpu pointing to the first CPU in hctx->cpumask if all CPUs in hctx->cpumask are offline. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Fixes: 20e4d81393196 ("blk-mq: simplify queue mapping & schedule with each possisble CPU") Cc: stable@vger.kernel.org Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10loop: fix LOOP_GET_STATUS lock imbalanceOmar Sandoval
Commit 2d1d4c1e591f made loop_get_status() drop lo_ctx_mutex before returning, but the loop_get_status_old(), loop_get_status64(), and loop_get_status_compat() wrappers don't call loop_get_status() if the passed argument is NULL. The callers expect that the lock is dropped, so make sure we drop it in that case, too. Reported-by: syzbot+31e8daa8b3fc129e75f2@syzkaller.appspotmail.com Fixes: 2d1d4c1e591f ("loop: don't call into filesystem while holding lo_ctl_mutex") Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10block/loop: fix deadlock after loop_set_statusTetsuo Handa
syzbot is reporting deadlocks at __blkdev_get() [1]. ---------------------------------------- [ 92.493919] systemd-udevd D12696 525 1 0x00000000 [ 92.495891] Call Trace: [ 92.501560] schedule+0x23/0x80 [ 92.502923] schedule_preempt_disabled+0x5/0x10 [ 92.504645] __mutex_lock+0x416/0x9e0 [ 92.510760] __blkdev_get+0x73/0x4f0 [ 92.512220] blkdev_get+0x12e/0x390 [ 92.518151] do_dentry_open+0x1c3/0x2f0 [ 92.519815] path_openat+0x5d9/0xdc0 [ 92.521437] do_filp_open+0x7d/0xf0 [ 92.527365] do_sys_open+0x1b8/0x250 [ 92.528831] do_syscall_64+0x6e/0x270 [ 92.530341] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 92.931922] 1 lock held by systemd-udevd/525: [ 92.933642] #0: 00000000a2849e25 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x73/0x4f0 ---------------------------------------- The reason of deadlock turned out that wait_event_interruptible() in blk_queue_enter() got stuck with bdev->bd_mutex held at __blkdev_put() due to q->mq_freeze_depth == 1. ---------------------------------------- [ 92.787172] a.out S12584 634 633 0x80000002 [ 92.789120] Call Trace: [ 92.796693] schedule+0x23/0x80 [ 92.797994] blk_queue_enter+0x3cb/0x540 [ 92.803272] generic_make_request+0xf0/0x3d0 [ 92.807970] submit_bio+0x67/0x130 [ 92.810928] submit_bh_wbc+0x15e/0x190 [ 92.812461] __block_write_full_page+0x218/0x460 [ 92.815792] __writepage+0x11/0x50 [ 92.817209] write_cache_pages+0x1ae/0x3d0 [ 92.825585] generic_writepages+0x5a/0x90 [ 92.831865] do_writepages+0x43/0xd0 [ 92.836972] __filemap_fdatawrite_range+0xc1/0x100 [ 92.838788] filemap_write_and_wait+0x24/0x70 [ 92.840491] __blkdev_put+0x69/0x1e0 [ 92.841949] blkdev_close+0x16/0x20 [ 92.843418] __fput+0xda/0x1f0 [ 92.844740] task_work_run+0x87/0xb0 [ 92.846215] do_exit+0x2f5/0xba0 [ 92.850528] do_group_exit+0x34/0xb0 [ 92.852018] SyS_exit_group+0xb/0x10 [ 92.853449] do_syscall_64+0x6e/0x270 [ 92.854944] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 92.943530] 1 lock held by a.out/634: [ 92.945105] #0: 00000000a2849e25 (&bdev->bd_mutex){+.+.}, at: __blkdev_put+0x3c/0x1e0 ---------------------------------------- The reason of q->mq_freeze_depth == 1 turned out that loop_set_status() forgot to call blk_mq_unfreeze_queue() at error paths for info->lo_encrypt_type != NULL case. ---------------------------------------- [ 37.509497] CPU: 2 PID: 634 Comm: a.out Tainted: G W 4.16.0+ #457 [ 37.513608] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/19/2017 [ 37.518832] RIP: 0010:blk_freeze_queue_start+0x17/0x40 [ 37.521778] RSP: 0018:ffffb0c2013e7c60 EFLAGS: 00010246 [ 37.524078] RAX: 0000000000000000 RBX: ffff8b07b1519798 RCX: 0000000000000000 [ 37.527015] RDX: 0000000000000002 RSI: ffffb0c2013e7cc0 RDI: ffff8b07b1519798 [ 37.529934] RBP: ffffb0c2013e7cc0 R08: 0000000000000008 R09: 47a189966239b898 [ 37.532684] R10: dad78b99b278552f R11: 9332dca72259d5ef R12: ffff8b07acd73678 [ 37.535452] R13: 0000000000004c04 R14: 0000000000000000 R15: ffff8b07b841e940 [ 37.538186] FS: 00007fede33b9740(0000) GS:ffff8b07b8e80000(0000) knlGS:0000000000000000 [ 37.541168] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.543590] CR2: 00000000206fdf18 CR3: 0000000130b30006 CR4: 00000000000606e0 [ 37.546410] Call Trace: [ 37.547902] blk_freeze_queue+0x9/0x30 [ 37.549968] loop_set_status+0x67/0x3c0 [loop] [ 37.549975] loop_set_status64+0x3b/0x70 [loop] [ 37.549986] lo_ioctl+0x223/0x810 [loop] [ 37.549995] blkdev_ioctl+0x572/0x980 [ 37.550003] block_ioctl+0x34/0x40 [ 37.550006] do_vfs_ioctl+0xa7/0x6d0 [ 37.550017] ksys_ioctl+0x6b/0x80 [ 37.573076] SyS_ioctl+0x5/0x10 [ 37.574831] do_syscall_64+0x6e/0x270 [ 37.576769] entry_SYSCALL_64_after_hwframe+0x42/0xb7 ---------------------------------------- [1] https://syzkaller.appspot.com/bug?id=cd662bc3f6022c0979d01a262c318fab2ee9b56f Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reported-by: syzbot <bot+48594378e9851eab70bcd6f99327c7db58c5a28a@syzkaller.appspotmail.com> Fixes: ecdd09597a572513 ("block/loop: fix race between I/O and set_status") Cc: Ming Lei <tom.leiming@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: stable <stable@vger.kernel.org> Cc: Jens Axboe <axboe@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10blk-mq: order getting budget and driver tagMing Lei
This patch orders getting budget and driver tag by making sure to acquire driver tag after budget is got, this way can help to avoid the following race: 1) before dispatch request from scheduler queue, get one budget first, then dequeue a request, call it request A. 2) in another IO path for dispatching request B which is from hctx->dispatch, driver tag is got, then try to get budget in blk_mq_dispatch_rq_list(), unfortunately the budget is held by request A. 3) meantime blk_mq_dispatch_rq_list() is called for dispatching request A, and try to get driver tag first, unfortunately no driver tag is available because the driver tag is held by request B 4) both two IO pathes can't move on, and IO stall is caused. This issue can be observed when running dbench on USB storage. This patch fixes this issue by always getting budget before getting driver tag. Cc: stable@vger.kernel.org Fixes: de1482974080ec9e ("blk-mq: introduce .get_budget and .put_budget in blk_mq_ops") Cc: Christoph Hellwig <hch@lst.de> Cc: Bart Van Assche <bart.vanassche@wdc.com> Cc: Omar Sandoval <osandov@fb.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10io: change writeX_relaxed() to remove barriersSinan Kaya
Now that we hardened writeX() API in asm-generic version, writeX_relaxed() API is violating the rules when writeX_relaxed() == writeX() in the default implementation. The relaxed API shouldn't have any barriers in it and it doesn't provide any ordering with respect to the memory transactions. The only requirement is for writes to be ordered with respect to each other. This is achieved by the volatile in the __raw_writeX() API. Open code the relaxed API and remove any barriers in it. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-04-10io: change readX_relaxed() to remove barriersSinan Kaya
Now that we hardened readX() API in asm-generic version, readX_relaxed() API is violating the rules when readX_relaxed() == readX() in the default implementation. The relaxed API shouldn't have any barriers in it and it doesn't provide any ordering with respect to the memory transactions. The only requirement is for reads to be ordered with respect to each other. This is achieved by the volatile in the __raw_readX() API. Open code the relaxed API and remove any barriers in it. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-04-10x86/cpu: Prevent cpuinfo_x86::x86_phys_bits adjustment corruptionKirill A. Shutemov
Some features (Intel MKTME, AMD SME) reduce the number of effectively available physical address bits. cpuinfo_x86::x86_phys_bits is adjusted accordingly during the early cpu feature detection. Though if get_cpu_cap() is called later again then this adjustement is overwritten. That happens in setup_pku(), which is called after detect_tme(). To address this, extract the address sizes enumeration into a separate function, which is only called only from early_identify_cpu() and from generic_identify(). This makes get_cpu_cap() safe to be called later during boot proccess without overwriting cpuinfo_x86::x86_phys_bits. [ tglx: Massaged changelog ] Fixes: cb06d8e3d020 ("x86/tme: Detect if TME and MKTME is activated by BIOS") Reported-by: Kai Huang <kai.huang@linux.intel.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: linux-mm@kvack.org Cc: "H. Peter Anvin" <hpa@zytor.com> Link: https://lkml.kernel.org/r/20180410092704.41106-1-kirill.shutemov@linux.intel.com
2018-04-11powerpc/powernv: define a standard delay for OPAL_BUSY type retry loopsNicholas Piggin
This is the start of an effort to tidy up and standardise all the delays. Existing loops have a range of delay/sleep periods from 1ms to 20ms, and some have no delay. They all loop forever except rtc, which times out after 10 retries, and that uses 10ms delays. So use 10ms as our standard delay. The OPAL maintainer agrees 10ms is a reasonable starting point. The idea is to use the same recipe everywhere, once this is proven to work then it will be documented as an OPAL API standard. Then both firmware and OS can agree, and if a particular call needs something else, then that can be documented with reasoning. This is not the end-all of this effort, it's just a relatively easy change that fixes some existing high latency delays. There should be provision for standardising timeouts and/or interruptible loops where possible, so non-fatal firmware errors don't cause hangs. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-10c6x: pass endianness info to sparseLuc Van Oostenryck
c6x depends on the macro '_BIG_ENDIAN' being defined or not to correctly select or define endian-specific macros, structures or pieces of code. This macro is predefined by the compiler but sparse knows nothing about it and thus may pre-process files differently from what gcc would. Fix this by passing '-D_BIG_ENDIAN' when compiling a big-endian kernel, like GCC would have done. To: Mark Salter <msalter@redhat.com> To: Aurelien Jacquiot <a-jacquiot@ti.com> CC: linux-c6x-dev@linux-c6x.org Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Mark Salter <msalter@redhat.com>
2018-04-10c6x: fix platforms/plldata.c get_coreid build errorRandy Dunlap
Fix build error reported by the 0day bot by including the header file for that macro. Fixes this build error: (should fix; not tested) arch/c6x/platforms/plldata.c: In function 'c6472_setup_clocks': arch/c6x/platforms/plldata.c:279:33: error: implicit declaration of function 'get_coreid'; did you mean 'get_order'? [-Werror=implicit-function-declaration] c6x_core_clk.parent = &sysclks[get_coreid() + 1]; Reported-by: Fengguang Wu <fengguang.wu@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com> Cc: linux-c6x-dev@linux-c6x.org Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Mark Salter <msalter@redhat.com>
2018-04-10c6x: remove unused KTHREAD_SIZE definitionJérémy Lefaure
KTHREAD_SIZE has never been used since it has been defined for c6x arch. Let's remove this useless definition. Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr> Signed-off-by: Mark Salter <msalter@redhat.com>
2018-04-10xen/pvh: Indicate XENFEAT_linux_rsdp_unrestricted to XenBoris Ostrovsky
Pre-4.17 kernels ignored start_info's rsdp_paddr pointer and instead relied on finding RSDP in standard location in BIOS RO memory. This has worked since that's where Xen used to place it. However, with recent Xen change (commit 4a5733771e6f ("libxl: put RSDP for PVH guest near 4GB")) it prefers to keep RSDP at a "non-standard" address. Even though as of commit b17d9d1df3c3 ("x86/xen: Add pvh specific rsdp address retrieval function") Linux is able to find RSDP, for back-compatibility reasons we need to indicate to Xen that we can handle this, an we do so by setting XENFEAT_linux_rsdp_unrestricted flag in ELF notes. (Also take this opportunity and sync features.h header file with Xen) Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Juergen Gross <jgross@suse.com> Reviewed-by: Wei Liu <wei.liu2@citrix.com>
2018-04-10tick-sched: avoid a maybe-uninitialized warningArnd Bergmann
The use of bitfields seems to confuse gcc, leading to a false-positive warning in all compiler versions: kernel/time/tick-sched.c: In function 'tick_nohz_idle_exit': kernel/time/tick-sched.c:538:2: error: 'now' may be used uninitialized in this function [-Werror=maybe-uninitialized] This introduces a temporary variable to track the flags so gcc doesn't have to evaluate twice, eliminating the code path that leads to the warning. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85301 Fixes: 1cae544d42d2 ("nohz: Gather tick_sched booleans under a common flag field") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-04-10cpufreq: Drop cpufreq_table_validate_and_show()Viresh Kumar
This isn't used anymore. Remove the helper and update documentation accordingly. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-04-10cpufreq: SCMI: Don't validate the frequency table twiceViresh Kumar
The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from SCMI driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-04-10cpufreq: CPPC: Initialize shared perf capabilities of CPUsShunyong Yang
When multiple CPUs are related in one cpufreq policy, the first online CPU will be chosen by default to handle cpufreq operations. Let's take cpu0 and cpu1 as an example. When cpu0 is offline, policy->cpu will be shifted to cpu1. cpu1's perf capabilities should be initialized. Otherwise, perf capabilities are 0s and speed change can not take effect. This patch copies perf capabilities of the first online CPU to other shared CPUs when policy shared type is CPUFREQ_SHARED_TYPE_ANY. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Shunyong Yang <shunyong.yang@hxt-semitech.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-04-10cpufreq: armada-37xx: Fix clock leakGregory CLEMENT
There was no clk_put() balancing the clk_get(). This commit fixes it. Fixes: 92ce45fb875d (cpufreq: Add DVFS support for Armada 37xx) Cc: 4.16+ <stable@vger.kernel.org> # 4.16+ Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-04-10cpufreq: CPPC: Don't set transition_latencyViresh Kumar
Now that the driver has started to set transition_delay_us directly, there is no need to set transition_latency along with it, as it is not used by the cpufreq core. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-04-10cpufreq: ti-cpufreq: Use builtin_platform_driver()Viresh Kumar
This driver can not be built as a module and there is no need of the platform driver unregister part. Use builtin_platform_driver() instead of module_platform_driver(). Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-04-10cpufreq: intel_pstate: Do not include debugfs.hRafael J. Wysocki
The intel_pstate driver doesn't use debugfs any more, so drop linux/debugfs.h from the list of included headers in it. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2018-04-09Merge remote-tracking branch ↵Benson Leung
'chrome-platform-stop-being-a-platform-driver-plus-atmel_mxt_ts-for-v4.17' into working-branch-for-4.17
2018-04-09platform/chrome: cros_ec_lpc: Add support for Google devices using custom ↵Salvatore Bellizzi
coreboot firmware This patch adds generic device information to the DMI table of the cros_ec_lpc driver, needed for Chromebooks/boxes using a custom coreboot firmware. The DMI info would not contain "Google_*" as BIOS version string, instead the system vendor string would still be "GOOGLE", so this seems to be a reasonable match for every Chromebook/box running a custom firmware. Signed-off-by: Salvatore Bellizzi <lkml@seppia.net> Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net> Signed-off-by: Benson Leung <bleung@chromium.org>
2018-04-09platform/chrome: cros_ec_lpc: wake up from s2idle on Chrome ECWenkai Du
Chrome platform installed a Chrome EC notify handler which prevents default EC GPE handler getting called. Add pm_system_wakeup to the Chrome EC notify handler so wake up from s2idle can happen. Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Wenkai Du <wenkai.du@intel.com> Signed-off-by: Benson Leung <bleung@chromium.org>
2018-04-09Input: atmel_mxt_ts - remove platform data supportDmitry Torokhov
Now that there are no users of custom Atmel platform data, and everyone has switched to the generic device properties, we can remove support for the platform data. Acked-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Benson Leung <bleung@chromium.org>
2018-04-09platform/chrome: chromeos_laptop - discard data for unneeded boardsDmitry Torokhov
Mark board data as __intconst/__initdata and make a copy of appropriate entry once we identified the board we are running on. The rest of the data will be discarded once the kernel finished booting (or module finished loading). Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Benson Leung <bleung@chromium.org>
2018-04-09platform/chrome: chromeos_laptop - use device properties for PixelDmitry Torokhov
Now that Atmel driver uses generic device properties we can use them instead of platform data when setting up touchpad on the original Google Pixel. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Benson Leung <bleung@chromium.org>