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2018-08-24Merge branch 'for-4.19' of ↵Linus Torvalds30-120/+158
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: "Nothing too interesting. Mostly ahci and ahci_platform changes, many around power management" * 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits) ata: ahci_platform: enable to get and control reset ata: libahci_platform: add reset control support ata: add an extra argument to ahci_platform_get_resources() ata: sata_rcar: Add r8a77965 support ata: sata_rcar: exclude setting of PHY registers in Gen3 ata: sata_rcar: really mask all interrupts on Gen2 and later Revert "ata: ahci_platform: allow disabling of hotplug to save power" ata: libahci: Allow reconfigure of DEVSLP register ata: libahci: Correct setting of DEVSLP register ata: ahci: Enable DEVSLP by default on x86 with SLP_S0 ata: ahci: Support state with min power but Partial low power state Revert "ata: ahci_platform: convert kcalloc to devm_kcalloc" ata: sata_rcar: Add rudimentary Runtime PM support ata: sata_rcar: Provide a short-hand for &pdev->dev ata: Only output sg element mapped number in verbose debug ata: Guard ata_scsi_dump_cdb() by ATA_VERBOSE_DEBUG ata: ahci_platform: convert kcalloc to devm_kcalloc ata: ahci_platform: convert kzallloc to kcalloc ata: ahci_platform: correct parameter documentation for ahci_platform_shutdown libata: remove ata_sff_data_xfer_noirq() ...
2018-08-24Merge tag 'iommu-updates-v4.19' of ↵Linus Torvalds28-232/+739
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: - PASID table handling updates for the Intel VT-d driver. It implements a global PASID space now so that applications usings multiple devices will just have one PASID. - A new config option to make iommu passthroug mode the default. - New sysfs attribute for iommu groups to export the type of the default domain. - A debugfs interface (for debug only) usable by IOMMU drivers to export internals to user-space. - R-Car Gen3 SoCs support for the ipmmu-vmsa driver - The ARM-SMMU now aborts transactions from unknown devices and devices not attached to any domain. - Various cleanups and smaller fixes all over the place. * tag 'iommu-updates-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (42 commits) iommu/omap: Fix cache flushes on L2 table entries iommu: Remove the ->map_sg indirection iommu/arm-smmu-v3: Abort all transactions if SMMU is enabled in kdump kernel iommu/arm-smmu-v3: Prevent any devices access to memory without registration iommu/ipmmu-vmsa: Don't register as BUS IOMMU if machine doesn't have IPMMU-VMSA iommu/ipmmu-vmsa: Clarify supported platforms iommu/ipmmu-vmsa: Fix allocation in atomic context iommu: Add config option to set passthrough as default iommu: Add sysfs attribyte for domain type iommu/arm-smmu-v3: sync the OVACKFLG to PRIQ consumer register iommu/arm-smmu: Error out only if not enough context interrupts iommu/io-pgtable-arm-v7s: Abort allocation when table address overflows the PTE iommu/io-pgtable-arm: Fix pgtable allocation in selftest iommu/vt-d: Remove the obsolete per iommu pasid tables iommu/vt-d: Apply per pci device pasid table in SVA iommu/vt-d: Allocate and free pasid table iommu/vt-d: Per PCI device pasid table interfaces iommu/vt-d: Add for_each_device_domain() helper iommu/vt-d: Move device_domain_info to header iommu/vt-d: Apply global PASID in SVA ...
2018-08-24Merge branch 'next' of ↵Linus Torvalds2-4/+24
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: - Add Daniel Lezcano as the reviewer of thermal framework and SoC driver changes (Daniel Lezcano). - Fix a bug in intel_dts_soc_thermal driver, which does not translate IO-APIC GSI (Global System Interrupt) into Linux irq number (Hans de Goede). - For device tree bindings, allow cooling devices sharing same trip point with same contribution value to share cooling map (Viresh Kumar). * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: dt-bindings: thermal: Allow multiple devices to share cooling map MAINTAINERS: Add Daniel Lezcano as designated reviewer for thermal Thermal: Intel SoC DTS: Translate IO-APIC GSI number to linux irq number
2018-08-24Merge tag 'powerpc-4.19-2' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - An implementation for the newly added hv_ops->flush() for the OPAL hvc console driver backends, I forgot to apply this after merging the hvc driver changes before the merge window. - Enable all PCI bridges at boot on powernv, to avoid races when multiple children of a bridge try to enable it simultaneously. This is a workaround until the PCI core can be enhanced to fix the races. - A fix to query PowerVM for the correct system topology at boot before initialising sched domains, seen in some configurations to cause broken scheduling etc. - A fix for pte_access_permitted() on "nohash" platforms. - Two commits to fix SIGBUS when using remap_pfn_range() seen on Power9 due to a workaround when using the nest MMU (GPUs, accelerators). - Another fix to the VFIO code used by KVM, the previous fix had some bugs which caused guests to not start in some configurations. - A handful of other minor fixes. Thanks to: Aneesh Kumar K.V, Benjamin Herrenschmidt, Christophe Leroy, Hari Bathini, Luke Dashjr, Mahesh Salgaonkar, Nicholas Piggin, Paul Mackerras, Srikar Dronamraju. * tag 'powerpc-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/mce: Fix SLB rebolting during MCE recovery path. KVM: PPC: Book3S: Fix guest DMA when guest partially backed by THP pages powerpc/mm/radix: Only need the Nest MMU workaround for R -> RW transition powerpc/mm/books3s: Add new pte bit to mark pte temporarily invalid. powerpc/nohash: fix pte_access_permitted() powerpc/topology: Get topology for shared processors at boot powerpc64/ftrace: Include ftrace.h needed for enable/disable calls powerpc/powernv/pci: Work around races in PCI bridge enabling powerpc/fadump: cleanup crash memory ranges support powerpc/powernv: provide a console flush operation for opal hvc driver powerpc/traps: Avoid rate limit messages from show unhandled signals powerpc/64s: Fix PACA_IRQ_HARD_DIS accounting in idle_power4()
2018-08-24Merge branch 'for-linus' of ↵Linus Torvalds20-210/+626
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: - A couple of patches for the zcrypt driver: + Add two masks to determine which AP cards and queues are host devices, this will be useful for KVM AP device passthrough + Add-on patch to improve the parsing of the new apmask and aqmask + Some code beautification - Second try to reenable the GCC plugins, the first patch set had a patch to do this but the merge somehow missed this - Remove the s390 specific GCC version check and use the generic one - Three patches for kdump, two bug fixes and one cleanup - Three patches for the PCI layer, one bug fix and two cleanups * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: remove gcc version check (4.3 or newer) s390/zcrypt: hex string mask improvements for apmask and aqmask. s390/zcrypt: AP bus support for alternate driver(s) s390/zcrypt: code beautify s390/zcrypt: switch return type to bool for ap_instructions_available() s390/kdump: Remove kzalloc_panic s390/kdump: Fix memleak in nt_vmcoreinfo s390/kdump: Make elfcorehdr size calculation ABI compliant s390/pci: remove fmb address from debug output s390/pci: remove stale rc s390/pci: fix out of bounds access during irq setup s390/zcrypt: fix ap_instructions_available() returncodes s390: reenable gcc plugins for real
2018-08-24Merge tag 'acpi-4.19-rc1-3' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI Kconfig fix from Rafael Wysocki: "Fix recent menuconfig breakage causing it to present ACPI-specific options incorrectly (Arnd Bergmann)" * tag 'acpi-4.19-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: fix menuconfig presentation of ACPI submenu
2018-08-24Merge tag 'drm-next-2018-08-24' of git://anongit.freedesktop.org/drm/drmLinus Torvalds34-141/+160
Pull drm fixes from Dave Airlie: "Just a couple of fixes" One MAINTAINERS address change, two panels fixes, and set of amdgpu fixes (build fixes, display fixes and some others)" * tag 'drm-next-2018-08-24' of git://anongit.freedesktop.org/drm/drm: drm/edid: Add 6 bpc quirk for SDC panel in Lenovo B50-80 drm/amd/display: Don't build DCN1 when kcov is enabled Revert "drm/amdgpu/display: Replace CONFIG_DRM_AMD_DC_DCN1_0 with CONFIG_X86" drm/amdgpu/display: disable eDP fast boot optimization on DCE8 drm/amdgpu: fix amdgpu_amdkfd_remove_eviction_fence v3 drm/amdgpu: fix incorrect use of drm_file->pid drm/amdgpu: fix incorrect use of fcheck drm/powerplay: enable dpm under pass-through drm/amdgpu: access register without KIQ drm/amdgpu: set correct base for THM/NBIF/MP1 IP drm/amd/display: fix dentist did ranges drm/amd/display: make dp_ss_off optional drm/amd/display: fix dp_ss_control vbios flag parsing drm/amd/display: Do not retain link settings MAINTAINERS: drm-misc: Change seanpaul's email address drm/panel: simple: tv123wam: Add unprepare delay
2018-08-24Merge branch 'i2c/for-next' of ↵Linus Torvalds9-45/+31
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull second i2c update from Wolfram Sang: "As promised, here is my 2nd pull request for I2C, containing: - removal of the attach_adapter callback, converting its last user - removal of any __deprecated usage within I2C - one email address update - some SPDX conversion" * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: don't use any __deprecated handling anymore i2c: use SPDX identifier for Renesas drivers i2c: ocores: update my email address i2c: remove deprecated attach_adapter callback macintosh: therm_windtunnel: drop using attach_adapter
2018-08-24Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds5-64/+99
Pull virtio updates from Michael Tsirkin: "virtio, vhost: fixes, tweaks No new features but a bunch of tweaks such as switching balloon from oom notifier to shrinker" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vhost/scsi: increase VHOST_SCSI_PREALLOC_PROT_SGLS to 2048 vhost: allow vhost-scsi driver to be built-in virtio: pci-legacy: Validate queue pfn virtio: mmio-v1: Validate queue PFN virtio_balloon: replace oom notifier with shrinker virtio-balloon: kzalloc the vb struct virtio-balloon: remove BUG() in init_vqs
2018-08-24i2c: don't use any __deprecated handling anymoreSedat Dilek1-1/+0
This can be dropped with commit 771c035372a036f83353eef46dbb829780330234 ("deprecate the '__deprecated' attribute warnings entirely and for good") now in upstream. And we got rid of the last __deprecated use, too. Signed-off-by: Sedat Dilek <sedat.dilek@credativ.de> [wsa: shortened commit message to reflect the current situation] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-08-24i2c: use SPDX identifier for Renesas driversWolfram Sang5-30/+5
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-08-24i2c: ocores: update my email addressPeter Korsgaard1-2/+2
The old @sunsite.dk address is no longer active, so update the references. Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-08-24i2c: remove deprecated attach_adapter callbackWolfram Sang1-10/+1
There aren't any users left. Remove this callback from the 2.4 times. Phew, finally, that took years to reach... Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-08-24macintosh: therm_windtunnel: drop using attach_adapterWolfram Sang1-2/+23
As we now have deferred probing, we can use a custom mechanism and finally get rid of the legacy interface from the i2c core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Michael Ellerman <mpe@ellerman.id.au>
2018-08-24Merge tag 'drm-misc-next-fixes-2018-08-23-1' of ↵Dave Airlie1-0/+3
git://anongit.freedesktop.org/drm/drm-misc into drm-next - Add quirk to Lenovo B50-80 to use 6 bpc instead of 8 (Feng) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20180823205434.GA137644@art_vandelay
2018-08-23Merge branch 'akpm' (patches from Andrew)Linus Torvalds8-38/+28
Merge yet more updates from Andrew Morton: - the rest of MM - various misc fixes and tweaks * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits) mm: Change return type int to vm_fault_t for fault handlers lib/fonts: convert comments to utf-8 s390: ebcdic: convert comments to UTF-8 treewide: convert ISO_8859-1 text comments to utf-8 drivers/gpu/drm/gma500/: change return type to vm_fault_t docs/core-api: mm-api: add section about GFP flags docs/mm: make GFP flags descriptions usable as kernel-doc docs/core-api: split memory management API to a separate file docs/core-api: move *{str,mem}dup* to "String Manipulation" docs/core-api: kill trailing whitespace in kernel-api.rst mm/util: add kernel-doc for kvfree mm/util: make strndup_user description a kernel-doc comment fs/proc/vmcore.c: hide vmcoredd_mmap_dumps() for nommu builds treewide: correct "differenciate" and "instanciate" typos fs/afs: use new return type vm_fault_t drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t mm: soft-offline: close the race against page allocation mm: fix race on soft-offlining free huge pages namei: allow restricted O_CREAT of FIFOs and regular files hfs: prevent crash on exit from failed search ...
2018-08-23treewide: convert ISO_8859-1 text comments to utf-8Arnd Bergmann3-9/+9
Almost all files in the kernel are either plain text or UTF-8 encoded. A couple however are ISO_8859-1, usually just a few characters in a C comments, for historic reasons. This converts them all to UTF-8 for consistency. Link: http://lkml.kernel.org/r/20180724111600.4158975-1-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Simon Horman <horms@verge.net.au> [IPVS portion] Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [IIO] Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Acked-by: Rob Herring <robh@kernel.org> Cc: Joe Perches <joe@perches.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-23drivers/gpu/drm/gma500/: change return type to vm_fault_tSouptick Joarder3-27/+17
Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. Ref-> 1c8f422059ae ("mm: change return type to vm_fault_t") Previously vm_insert_{pfn,mixed} returns err which driver mapped into VM_FAULT_* type. The new function vmf_insert_{pfn,mixed} will replace this inefficiency by returning VM_FAULT_* type. vmf_error() is the newly introduce inline function in 4.17-rc6. Link: http://lkml.kernel.org/r/20180713154541.GA3345@jordon-HP-15-Notebook-PC Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Cc: David Airlie <airlied@linux.ie> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-23treewide: correct "differenciate" and "instanciate" typosFinn Thain1-1/+1
Also add these typos to spelling.txt so checkpatch.pl will look for them. Link: http://lkml.kernel.org/r/88af06b9de34d870cb0afc46cfd24e0458be2575.1529471371.git.fthain@telegraphics.com.au Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-23drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_tSouptick Joarder1-1/+1
Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. See 1c8f422059ae ("mm: change return type to vm_fault_t") for reference. Link: http://lkml.kernel.org/r/20180702155801.GA4010@jordon-HP-15-Notebook-PC Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-23Merge tag 'upstream-4.19-rc1' of git://git.infradead.org/linux-ubifsLinus Torvalds6-11/+47
Pull UBI/UBIFS updates from Richard Weinberger: - Year 2038 preparations - New UBI feature to skip CRC checks of static volumes - A new Kconfig option to disable xattrs in UBIFS - Lots of fixes in UBIFS, found by our new test framework * tag 'upstream-4.19-rc1' of git://git.infradead.org/linux-ubifs: (21 commits) ubifs: Set default assert action to read-only ubifs: Allow setting assert action as mount parameter ubifs: Rework ubifs_assert() ubifs: Pass struct ubifs_info to ubifs_assert() ubifs: Turn two ubifs_assert() into a WARN_ON() ubi: expose the volume CRC check skip flag ubi: provide a way to skip CRC checks ubifs: Use kmalloc_array() ubifs: Check data node size before truncate Revert "UBIFS: Fix potential integer overflow in allocation" ubifs: Add comment on c->commit_sem ubifs: introduce Kconfig symbol for xattr support ubifs: use swap macro in swap_dirty_idx ubifs: tnc: use monotonic znode timestamp ubifs: use timespec64 for inode timestamps ubifs: xattr: Don't operate on deleted inodes ubifs: gc: Fix typo ubifs: Fix memory leak in lprobs self-check ubi: Initialize Fastmap checkmapping correctly ubifs: Fix synced_i_size calculation for xattr inodes ...
2018-08-23Merge tag 'pwm/for-4.19-rc1' of ↵Linus Torvalds11-64/+107
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "This contains mostly minor bug fixes as well as some new chip support for existing drivers" * tag 'pwm/for-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: mediatek: Add MT7628 support dt-bindings: pwm: Add MT7628 information dt-bindings: pwm: rcar: Add bindings for R-Car E3 support pwm: meson: Fix mux clock names pwm: stm32-lp: Remove useless loop in stm32_pwm_lp_remove() pwm: omap-dmtimer: Return -EPROBE_DEFER if no dmtimer platform data pwm: mxs: Switch to SPDX identifier dt-bindings: pwm: fsl-ftm: Add compatible string for i.MX8QM pwm: fsl-ftm: Enable support for the new SoC i.MX8QM pwm: fsl-ftm: Added the support of per-compatible data pwm: fsl-ftm: Added a dedicated IP interface clock pwm: cros-ec: Switch to SPDX identifier pwm: imx: Switch to SPDX identifier pwm: tiehrpwm: Fix disabling of output of PWMs pwm: tiehrpwm: Don't use emulation mode bits to control PWM output pwm: berlin: Don't use broken prescaler values
2018-08-23Merge tag 'fbdev-v4.19' of https://github.com/bzolnier/linuxLinus Torvalds28-267/+579
Pull fbdev updates from Bartlomiej Zolnierkiewicz: "Mostly small fixes and cleanups for fb drivers (the biggest updates are for udlfb and pxafb drivers). This also adds deferred console takeover support to the console code and efifb driver. Summary: - add support for deferred console takeover, when enabled defers fbcon taking over the console from the dummy console until the first text is displayed on the console - together with the "quiet" kernel commandline option this allows fbcon to still be used together with a smooth graphical bootup (Hans de Goede) - improve console locking debugging code (Thomas Zimmermann) - copy the ACPI BGRT boot graphics to the framebuffer when deferred console takeover support is used in efifb driver (Hans de Goede) - update udlfb driver - fix lost console when the user unplugs a USB adapter, fix the screen corruption issue, fix locking and add some performance optimizations (Mikulas Patocka) - update pxafb driver - fix using uninitialized memory, switch to devm_* API, handle initialization errors and add support for lcd-supply regulator (Daniel Mack) - add support for boards booted with a DeviceTree in pxa3xx_gcu driver (Daniel Mack) - rename omap2 module to omap2fb.ko to avoid conflicts with omap1 driver (Arnd Bergmann) - enable ACPI-based enumeration for goldfishfb driver (Yu Ning) - fix goldfishfb driver to make user space Android code use 60 fps (Christoffer Dall) - print big fat warning when nomodeset kernel parameter is used in vgacon driver (Lyude Paul) - remove VLA usage from fsl-diu-fb driver (Kees Cook) - misc fixes (Julia Lawall, Geert Uytterhoeven, Fredrik Noring, Yisheng Xie, Dan Carpenter, Daniel Vetter, Anton Vasilyev, Randy Dunlap, Gustavo A. R. Silva, Colin Ian King, Fengguang Wu) - misc cleanups (Roman Kiryanov, Yisheng Xie, Colin Ian King)" * tag 'fbdev-v4.19' of https://github.com/bzolnier/linux: (54 commits) Documentation/fb: corrections for fbcon.txt fbcon: Do not takeover the console from atomic context dummycon: Stop exporting dummycon_[un]register_output_notifier fbcon: Only defer console takeover if the current console driver is the dummycon fbcon: Only allow FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER if fbdev is builtin fbdev: omap2: omapfb: fix ifnullfree.cocci warnings fbdev: omap2: omapfb: fix bugon.cocci warnings fbdev: omap2: omapfb: fix boolreturn.cocci warnings fb: amifb: fix build warnings when not builtin fbdev/core: Disable console-lock warnings when fb.lockless_register_fb is set console: Replace #if 0 with atomic var 'ignore_console_lock_warning' udlfb: use spin_lock_irq instead of spin_lock_irqsave udlfb: avoid prefetch udlfb: optimization - test the backing buffer udlfb: allow reallocating the framebuffer udlfb: set line_length in dlfb_ops_set_par udlfb: handle allocation failure udlfb: set optimal write delay udlfb: make a local copy of fb_ops udlfb: don't switch if we are switching to the same videomode ...
2018-08-23Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds2-4/+22
Pull more rdma updates from Jason Gunthorpe: "This is the SMC cleanup promised, a randconfig regression fix, and kernel oops fix. Summary: - Switch SMC over to rdma_get_gid_attr and remove the compat - Fix a crash in HFI1 with some BIOS's - Fix a randconfig failure" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: IB/ucm: fix UCM link error IB/hfi1: Invalid NUMA node information can cause a divide by zero RDMA/smc: Replace ib_query_gid with rdma_get_gid_attr
2018-08-23Merge tag 'for-linus-4.19b-rc1b-tag' of ↵Linus Torvalds3-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes and cleanups from Juergen Gross: "Some cleanups, some minor fixes and a fix for a bug introduced in this merge window hitting 32-bit PV guests" * tag 'for-linus-4.19b-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86/xen: enable early use of set_fixmap in 32-bit Xen PV guest xen: remove unused hypercall functions x86/xen: remove unused function xen_auto_xlated_memory_setup() xen/ACPI: don't upload Px/Cx data for disabled processors x86/Xen: further refine add_preferred_console() invocations xen/mcelog: eliminate redundant setting of interface version x86/Xen: mark xen_setup_gdt() __init
2018-08-23Merge tag 'armsoc-dt' of ↵Linus Torvalds1-0/+14
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM device-tree updates from Olof Johansson: "Business as usual -- the bulk of our changes are to devicetree files with new hardware support, new SoCs and platforms, and new board types. New SoCs/platforms: - Raspberry Pi Compute Module (CM1) and IO board - i.MX6SSL from NXP - Renesas RZ/N1D SoC (R9A06G032), Dual Cortex-A7 with Ethernet, CAN and PLC interfaces - TI AM654 SoC, Quad Cortex-A53, safety subsystem with Cortex-R5 controllers, communication and PRU subsystem and lots of other interfaces (PCIe, USB3, etc). New boards and systems: - Several Atmel at91-based boards from Laird - Marvell Armada388-based Helios4 board from SolidRun - Samsung Aires-based phones (s5pv210) - Allwinner A64-based Pinebook laptop In addition to the above, there's the usual amount of new devices described on existing platforms, fixes and tweaks and new minor variants of boards/platforms" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (478 commits) arm64: dts: sdm845: Add tsens nodes arm64: dts: msm8996: thermal: Initialise via DT and add second controller arm64: dts: sprd: Add one suspend timer arm64: dts: sprd: Add SC27XX ADC device arm64: dts: sprd: Add SC27XX eFuse device arm64: dts: sprd: Add SC27XX vibrator device arm64: dts: sprd: Add SC27XX breathing light controller device arm64: dts: meson-axg: add spdif-dit codec arm64: dts: meson-axg: add lineout codec arm64: dts: meson-axg: add linein codec arm64: dts: meson-axg: add tdm interfaces arm64: dts: meson-axg: add tdmout formatters arm64: dts: meson-axg: add tdmin formatters arm64: dts: meson-axg: add spdifout arm64: dts: rockchip: add led support for Firefly-RK3399 arm64: dts: rockchip: remove deprecated Type-C PHY properties on rk3399 arm64: dts: rockchip: add power button support for Firefly-RK3399 ARM: dts: aspeed: Add coprocessor interrupt controller arm64: dts: meson-axg: add audio arb reset controller arm64: dts: meson-axg: add usb power regulator ...
2018-08-23Merge tag 'armsoc-drivers' of ↵Linus Torvalds62-1624/+1089
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "Some of the larger changes this merge window: - Removal of drivers for Exynos5440, a Samsung SoC that never saw widespread use. - Uniphier support for USB3 and SPI reset handling - Syste control and SRAM drivers and bindings for Allwinner platforms - Qualcomm AOSS (Always-on subsystem) reset controller drivers - Raspberry Pi hwmon driver for voltage - Mediatek pwrap (pmic) support for MT6797 SoC" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits) drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests soc: fsl: cleanup Kconfig menu soc: fsl: dpio: Convert DPIO documentation to .rst staging: fsl-mc: Remove remaining files staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl staging: fsl-dpaa2: eth: move generic FD defines to DPIO soc: fsl: qe: gpio: Add qe_gpio_set_multiple usb: host: exynos: Remove support for Exynos5440 clk: samsung: Remove support for Exynos5440 soc: sunxi: Add the A13, A23 and H3 system control compatibles reset: uniphier: add reset control support for SPI cpufreq: exynos: Remove support for Exynos5440 ata: ahci-platform: Remove support for Exynos5440 soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs soc: mediatek: pwrap: fix cipher init setting error dt-bindings: pwrap: mediatek: add pwrap support for MT6797 reset: uniphier: add USB3 core reset control dt-bindings: reset: uniphier: add USB3 core reset support ...
2018-08-23Merge tag 'armsoc-soc' of ↵Linus Torvalds13-147/+268
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM 32-bit SoC platform updates from Olof Johansson: "Most of the SoC updates in this cycle are cleanups and moves to more modern infrastructure: - Davinci was moved to common clock framework - OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the keyboard interface (bitbanged AT keyboard via GPIO). - Removal of some stale code for Renesas platforms - Power management improvements for i.MX6LL" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (112 commits) ARM: uniphier: select RESET_CONTROLLER arm64: uniphier: select RESET_CONTROLLER ARM: uniphier: remove empty Makefile ARM: exynos: Clear global variable on init error path ARM: exynos: Remove outdated maintainer information ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15 ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill soc: r9a06g032: don't build SMP files for non-SMP config ARM: shmobile: Add the R9A06G032 SMP enabler driver ARM: at91: pm: configure wakeup sources for ULP1 mode ARM: at91: pm: add PMC fast startup registers defines ARM: at91: pm: Add ULP1 mode support ARM: at91: pm: Use ULP0 naming instead of slow clock ARM: hisi: handle of_iomap and fix missing of_node_put ARM: hisi: check of_iomap and fix missing of_node_put ARM: hisi: fix error handling and missing of_node_put ARM: mx5: Set the DBGEN bit in ARM_GPC register ARM: imx51: Configure M4IF to avoid visual artifacts ARM: imx: call imx6sx_cpuidle_init() conditionally for 6sll ARM: imx: fix i.MX6SLL build ...
2018-08-23drm/edid: Add 6 bpc quirk for SDC panel in Lenovo B50-80Kai-Heng Feng1-0/+3
Another panel that reports "DFP 1.x compliant TMDS" but it supports 6bpc instead of 8 bpc. Apply 6 bpc quirk for the panel to fix it. BugLink: https://bugs.launchpad.net/bugs/1788308 Cc: <stable@vger.kernel.org> # v4.8+ Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180823055332.7723-1-kai.heng.feng@canonical.com
2018-08-23ACPI: fix menuconfig presentation of ACPI submenuArnd Bergmann1-3/+3
My fix for a recursive Kconfig dependency caused another issue where the ACPI specific options end up in the top-level menu in 'menuconfig'. This was an unintended side-effect of having a silent option between 'menuconfig ACPI' and 'if ACPI'. Moving the ARCH_SUPPORTS_ACPI symbol ahead of the ACPI menu solves that problem and restores the previous presentation. Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Fixes: 2c870e61132c (arm64: fix ACPI dependencies) Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-08-23Merge branch 'drm-next-4.19' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie32-141/+154
into drm-next Fixes for 4.19: - Fix build when KCOV is enabled - Misc display fixes - A couple of SR-IOV fixes - Fence fixes for eviction handling for KFD - Misc other fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180822203813.2733-1-alexander.deucher@amd.com
2018-08-23Merge tag 'drm-misc-next-fixes-2018-08-22' of ↵Dave Airlie1-0/+3
git://anongit.freedesktop.org/drm/drm-misc into drm-next - Add an unprepare delay to the tv123wam panel (Sean) - Update seanpaul's email in MAINTAINERS (Sean) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20180822193850.GA214158@art_vandelay
2018-08-22include/linux/compiler*.h: make compiler-*.h mutually exclusiveNick Desaulniers2-6/+1
Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6") recently exposed a brittle part of the build for supporting non-gcc compilers. Both Clang and ICC define __GNUC__, __GNUC_MINOR__, and __GNUC_PATCHLEVEL__ for quick compatibility with code bases that haven't added compiler specific checks for __clang__ or __INTEL_COMPILER. This is brittle, as they happened to get compatibility by posing as a certain version of GCC. This broke when upgrading the minimal version of GCC required to build the kernel, to a version above what ICC and Clang claim to be. Rather than always including compiler-gcc.h then undefining or redefining macros in compiler-intel.h or compiler-clang.h, let's separate out the compiler specific macro definitions into mutually exclusive headers, do more proper compiler detection, and keep shared definitions in compiler_types.h. Fixes: cafa0010cd51 ("Raise the minimum required gcc version to 4.6") Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com> Suggested-by: Eli Friedman <efriedma@codeaurora.org> Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22Merge tag 'platform-drivers-x86-v4.19-1' of ↵Linus Torvalds25-418/+1659
git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform driver updates from Andy Shevchenko: - The driver for Silead touchscreen configurations has been renamed from silead_dmi to touchscreen_dmi since it starts supporting other touchscreens which require some DMI quirks It also gets expanded to cover cases for Chuwi Vi10, ONDA V891W, Connect Tablet 9, Onda V820w, and Cube KNote i1101 tablets. - Another bunch of changes is related to Mellanox platform code to allow user space to communicate with Mellanox for system control and monitoring purposes. The driver notifies user on hotplug device signal receiving. - ASUS WMI drivers recognize lid flip action on UX360, and correctly toggles airplane mode LED. In addition the keyboard backlight toggle gets support. - ThinkPad ACPI driver enables support for calculator key (on at least P52). It also has been fixed to support three characters model designators, which are used for modern laptops. Earlier the battery, marked as BAT1, on ThinkPad laptops has not been configured properly, which is fixed. On the opposite the multi-battery configurations now probed correctly. - Dell SMBIOS driver starts working on some Dell servers which do not support token interface. The regression with backlight detection has also been fixed. In order to support dock mode on some laptops, Intel virtual button driver has been fixed. The last but not least is the fix to Intel HID driver due to changes in Dell systems that prevented to use power button. * tag 'platform-drivers-x86-v4.19-1' of git://git.infradead.org/linux-platform-drivers-x86: (47 commits) platform/x86: acer-wmi: Silence "unsupported" message a bit platform/x86: intel_punit_ipc: fix build errors platform/x86: ideapad: Add Y520-15IKBM and Y720-15IKBM to no_hw_rfkill platform/x86: asus-nb-wmi: Add keymap entry for lid flip action on UX360 platform/x86: acer-wmi: refactor function has_cap platform/x86: thinkpad_acpi: Fix multi-battery bug platform/x86: thinkpad_acpi: extend battery quirk coverage platform/x86: touchscreen_dmi: Add info for the Cube KNote i1101 tablet platform/x86: mlx-platform: Fix copy-paste error in mlxplat_init() platform/x86: mlx-platform: Remove unused define platform/x86: mlx-platform: Change mlxreg-io configuration for MSN274x systems Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces platform/x86: mlx-platform: Allow mlxreg-io driver activation for more systems platform/x86: mlx-platform: Add ASIC hotplug device configuration platform/mellanox: mlxreg-hotplug: Add hotplug hwmon uevent notification platform/mellanox: mlxreg-hotplug: Improve mechanism of ASIC health discovery platform/x86: mlx-platform: Add mlxreg-fan platform driver activation platform/x86: dell-laptop: Fix backlight detection platform/x86: toshiba_acpi: Fix defined but not used build warnings platform/x86: thinkpad_acpi: Support battery quirk ...
2018-08-22Merge tag 'xtensa-20180820' of git://github.com/jcmvbkbc/linux-xtensaLinus Torvalds2-4/+0
Pull Xtensa updates from Max Filippov: - switch xtensa arch to the generic noncoherent direct mapping operations - add support for DMA_ATTR_NO_KERNEL_MAPPING attribute - clean up users of platform/hardware.h in generic Xtensa code - fix assembly cache maintenance code for long cache lines - rework noMMU cache attributes initialization - add big-endian HiFi2 test_kc705_be CPU variant * tag 'xtensa-20180820' of git://github.com/jcmvbkbc/linux-xtensa: xtensa: add test_kc705_be variant xtensa: clean up boot-elf/bootstrap.S xtensa: make bootparam parsing optional xtensa: drop variant IRQ support xtensa: drop unneeded platform/hardware.h headers xtensa: move PLATFORM_NR_IRQS to Kconfig xtensa: rework {CONFIG,PLATFORM}_DEFAULT_MEM_START xtensa: drop unused {CONFIG,PLATFORM}_DEFAULT_MEM_SIZE xtensa: rework noMMU cache attributes initialization xtensa: increase ranges in ___invalidate_{i,d}cache_all xtensa: limit offsets in __loop_cache_{all,page} xtensa: platform-specific handling of coherent memory xtensa: support DMA_ATTR_NO_KERNEL_MAPPING attribute xtensa: use generic dma_noncoherent_ops
2018-08-22Merge tag 'for-4.19/post-20180822' of git://git.kernel.dk/linux-blockLinus Torvalds30-553/+697
Pull more block updates from Jens Axboe: - Set of bcache fixes and changes (Coly) - The flush warn fix (me) - Small series of BFQ fixes (Paolo) - wbt hang fix (Ming) - blktrace fix (Steven) - blk-mq hardware queue count update fix (Jianchao) - Various little fixes * tag 'for-4.19/post-20180822' of git://git.kernel.dk/linux-block: (31 commits) block/DAC960.c: make some arrays static const, shrinks object size blk-mq: sync the update nr_hw_queues with blk_mq_queue_tag_busy_iter blk-mq: init hctx sched after update ctx and hctx mapping block: remove duplicate initialization tracing/blktrace: Fix to allow setting same value pktcdvd: fix setting of 'ret' error return for a few cases block: change return type to bool block, bfq: return nbytes and not zero from struct cftype .write() method block, bfq: improve code of bfq_bfqq_charge_time block, bfq: reduce write overcharge block, bfq: always update the budget of an entity when needed block, bfq: readd missing reset of parent-entity service blk-wbt: fix IO hang in wbt_wait() block: don't warn for flush on read-only device bcache: add the missing comments for smp_mb()/smp_wmb() bcache: remove unnecessary space before ioctl function pointer arguments bcache: add missing SPDX header bcache: move open brace at end of function definitions to next line bcache: add static const prefix to char * array declarations bcache: fix code comments style ...
2018-08-22Merge branch 'akpm' (patches from Andrew)Linus Torvalds16-180/+177
Merge more updates from Andrew Morton: - the rest of MM - procfs updates - various misc things - more y2038 fixes - get_maintainer updates - lib/ updates - checkpatch updates - various epoll updates - autofs updates - hfsplus - some reiserfs work - fatfs updates - signal.c cleanups - ipc/ updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (166 commits) ipc/util.c: update return value of ipc_getref from int to bool ipc/util.c: further variable name cleanups ipc: simplify ipc initialization ipc: get rid of ids->tables_initialized hack lib/rhashtable: guarantee initial hashtable allocation lib/rhashtable: simplify bucket_table_alloc() ipc: drop ipc_lock() ipc/util.c: correct comment in ipc_obtain_object_check ipc: rename ipcctl_pre_down_nolock() ipc/util.c: use ipc_rcu_putref() for failues in ipc_addid() ipc: reorganize initialization of kern_ipc_perm.seq ipc: compute kern_ipc_perm.id under the ipc lock init/Kconfig: remove EXPERT from CHECKPOINT_RESTORE fs/sysv/inode.c: use ktime_get_real_seconds() for superblock stamp adfs: use timespec64 for time conversion kernel/sysctl.c: fix typos in comments drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer md fork: don't copy inconsistent signal handler state to child signal: make get_signal() return bool signal: make sigkill_pending() return bool ...
2018-08-22drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer mdColin Ian King1-2/+0
Pointer md is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'md' set but not used [-Wunused-but-set-variable] Link: http://lkml.kernel.org/r/20180711082346.5223-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Alexandre Bounine <alex.bou9@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22bcache: use routines from lib/crc64.c for CRC64 calculationColy Li3-135/+18
Now we have crc64 calculation in lib/crc64.c, it is unnecessary for bcache to use its own version. This patch changes bcache code to use crc64 routines in lib/crc64.c. Link: http://lkml.kernel.org/r/20180718165545.1622-3-colyli@suse.de Signed-off-by: Coly Li <colyli@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Michael Lyle <mlyle@lyle.org> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Eric Biggers <ebiggers3@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Noah Massey <noah.massey@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22PCI: Add support for relative addressing in quirk tablesArd Biesheuvel1-3/+9
Allow the PCI quirk tables to be emitted in a way that avoids absolute references to the hook functions. This reduces the size of the entries, and, more importantly, makes them invariant under runtime relocation (e.g., for KASLR) Link: http://lkml.kernel.org/r/20180704083651.24360-6-ard.biesheuvel@linaro.org Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morris <james.morris@microsoft.com> Cc: James Morris <jmorris@namei.org> Cc: Jessica Yu <jeyu@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Nicolas Pitre <nico@linaro.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Russell King <linux@armlinux.org.uk> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Garnier <thgarnie@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22module: allow symbol exports to be disabledArd Biesheuvel1-0/+1
To allow existing C code to be incorporated into the decompressor or the UEFI stub, introduce a CPP macro that turns all EXPORT_SYMBOL_xxx declarations into nops, and #define it in places where such exports are undesirable. Note that this gets rid of a rather dodgy redefine of linux/export.h's header guard. Link: http://lkml.kernel.org/r/20180704083651.24360-3-ard.biesheuvel@linaro.org Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Will Deacon <will.deacon@arm.com> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morris <james.morris@microsoft.com> Cc: James Morris <jmorris@namei.org> Cc: Jessica Yu <jeyu@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Russell King <linux@armlinux.org.uk> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Garnier <thgarnie@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22drivers/block/zram/zram_drv.c: fix bug storing backing_devPeter Kalauskas1-1/+6
The call to strlcpy in backing_dev_store is incorrect. It should take the size of the destination buffer instead of the size of the source buffer. Additionally, ignore the newline character (\n) when reading the new file_name buffer. This makes it possible to set the backing_dev as follows: echo /dev/sdX > /sys/block/zram0/backing_dev The reason it worked before was the fact that strlcpy() copies 'len - 1' bytes, which is strlen(buf) - 1 in our case, so it accidentally didn't copy the trailing new line symbol. Which also means that "echo -n /dev/sdX" most likely was broken. Signed-off-by: Peter Kalauskas <peskal@google.com> Link: http://lkml.kernel.org/r/20180813061623.GC64836@rodete-desktop-imager.corp.google.com Acked-by: Minchan Kim <minchan@kernel.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: <stable@vger.kernel.org> [4.14+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22mm, oom: distinguish blockable mode for mmu notifiersMichal Hocko9-39/+143
There are several blockable mmu notifiers which might sleep in mmu_notifier_invalidate_range_start and that is a problem for the oom_reaper because it needs to guarantee a forward progress so it cannot depend on any sleepable locks. Currently we simply back off and mark an oom victim with blockable mmu notifiers as done after a short sleep. That can result in selecting a new oom victim prematurely because the previous one still hasn't torn its memory down yet. We can do much better though. Even if mmu notifiers use sleepable locks there is no reason to automatically assume those locks are held. Moreover majority of notifiers only care about a portion of the address space and there is absolutely zero reason to fail when we are unmapping an unrelated range. Many notifiers do really block and wait for HW which is harder to handle and we have to bail out though. This patch handles the low hanging fruit. __mmu_notifier_invalidate_range_start gets a blockable flag and callbacks are not allowed to sleep if the flag is set to false. This is achieved by using trylock instead of the sleepable lock for most callbacks and continue as long as we do not block down the call chain. I think we can improve that even further because there is a common pattern to do a range lookup first and then do something about that. The first part can be done without a sleeping lock in most cases AFAICS. The oom_reaper end then simply retries if there is at least one notifier which couldn't make any progress in !blockable mode. A retry loop is already implemented to wait for the mmap_sem and this is basically the same thing. The simplest way for driver developers to test this code path is to wrap userspace code which uses these notifiers into a memcg and set the hard limit to hit the oom. This can be done e.g. after the test faults in all the mmu notifier managed memory and set the hard limit to something really small. Then we are looking for a proper process tear down. [akpm@linux-foundation.org: coding style fixes] [akpm@linux-foundation.org: minor code simplification] Link: http://lkml.kernel.org/r/20180716115058.5559-1-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Christian König <christian.koenig@amd.com> # AMD notifiers Acked-by: Leon Romanovsky <leonro@mellanox.com> # mlx and umem_odp Reported-by: David Rientjes <rientjes@google.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: David Airlie <airlied@linux.ie> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Mike Marciniszyn <mike.marciniszyn@intel.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Sudeep Dutt <sudeep.dutt@intel.com> Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Juergen Gross <jgross@suse.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22ata: ahci_platform: enable to get and control resetKunihiko Hayashi1-1/+2
Unlike SoC-specific driver, generic ahci_platform driver doesn't have any chances to control resets. This adds AHCI_PLATFORM_GET_RESETS to ahci_platform_get_resources() on the generic driver to enable reset control support. Suggested-by: Hans de Goede <hdegoede@redhat.com> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-08-22ata: libahci_platform: add reset control supportKunihiko Hayashi2-5/+27
Add support to get and control a list of resets for the device as optional and shared. These resets must be kept de-asserted until the device is enabled. This is specified as shared because some SoCs like UniPhier series have common reset controls with all ahci controller instances. However, according to Thierry's view, https://www.spinics.net/lists/linux-ide/msg55357.html some hardware-specific drivers already use their own resets, and the common reset make a path to occur double controls of resets. The ahci_platform_get_resources() can get and control the reset only when the second argument includes AHCI_PLATFORM_GET_RESETS bit. Suggested-by: Hans de Goede <hdegoede@redhat.com> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-08-22ata: add an extra argument to ahci_platform_get_resources()Kunihiko Hayashi15-15/+17
Add an extra argument to ahci_platform_get_resources(), that is for the bitmap representing the resource to get in this function. Currently there is no resources to be defined, so all the callers set '0' to the argument. Suggested-by: Hans de Goede <hdegoede@redhat.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-08-22Merge tag 'acpi-4.19-rc1-2' of ↵Linus Torvalds16-54/+252
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "These update the ACPICA code in the kernel to the most recent upstream revision (which includes a regression fix and other improvements), make ACPICA clear the status of all ACPI events when entering sleep states (to restore the previous behavior) and update the ACPI operation region driver for the CrystalCove PMIC. Specifics: - Update the ACPICA code in the kernel to upstream revision 20180810 including: * Fix for AML parser regression causing it to mishandle opcodes that open a scope upon parse failures (Erik Schmauss) * Fix for a reference counting issue on large systems (Erik Schmauss) * Fix to discard values coming from register reads that have failed (Erik Schmauss) * Two acpiexec fixes (Bob Moore, Erik Schmauss) * Debugger cleanup (Bob Moore) * Cleanup of duplicate table error message (Bob Moore) * Cleanup of hex detection in the utilities (Erik Schmauss) - Make ACPICA clear the status of all ACPI events when entering sleep states again to avoid functional regressions (Rafael Wysocki) - Update the ACPI operation region driver for the CrystalCove PMIC to cover all of the known operation region fields (Hans de Goede)" * tag 'acpi-4.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / PMIC: CrystalCove: Extend PMOP support to support all possible fields ACPICA: Clear status of all events when entering sleep states ACPICA: Update version to 20180810 ACPICA: acpiexec: fix a small memory leak regression ACPICA: Reference Counts: increase max to 0x4000 for large servers ACPICA: Reference count: add additional debugging details ACPICA: acpi_exec: fixing -fi option ACPICA: Debugger: Cleanup interface to the AML disassembler ACPICA: AML Parser: skip opcodes that open a scope upon parse failure ACPICA: Utilities: split hex detection into smaller functions ACPICA: Update an error message for a duplicate table ACPICA: ACPICA: add status check for acpi_hw_read before assigning return value ACPICA: AML Parser: ignore all exceptions resulting from incorrect AML during table load
2018-08-22Merge tag 'pm-4.19-rc1-2' of ↵Linus Torvalds3-23/+40
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These fix the main idle loop and the menu cpuidle governor, clean up the latter, fix a mistake in the PCI bus type's support for system suspend and resume, fix the ondemand and conservative cpufreq governors, address a build issue in the system wakeup framework and make the ACPI C-states desciptions less confusing. Specifics: - Make the idle loop handle stopped scheduler tick correctly (Rafael Wysocki). - Prevent the menu cpuidle governor from letting CPUs spend too much time in shallow idle states when it is invoked with scheduler tick stopped and clean it up somewhat (Rafael Wysocki). - Avoid invoking the platform firmware to make the platform enter the ACPI S3 sleep state with suspended PCIe root ports which may confuse the firmware and cause it to crash (Rafael Wysocki). - Fix sysfs-related race in the ondemand and conservative cpufreq governors which may cause the system to crash if the governor module is removed during an update of CPU frequency limits (Henry Willard). - Select SRCU when building the system wakeup framework to avoid a build issue in it (zhangyi). - Make the descriptions of ACPI C-states vendor-neutral to avoid confusion (Prarit Bhargava)" * tag 'pm-4.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpuidle: menu: Handle stopped tick more aggressively sched: idle: Avoid retaining the tick when it has been stopped PCI / ACPI / PM: Resume all bridges on suspend-to-RAM cpuidle: menu: Update stale polling override comment cpufreq: governor: Avoid accessing invalid governor_data x86/ACPI/cstate: Make APCI C1 FFH MWAIT C-state description vendor-neutral cpuidle: menu: Fix white space PM / sleep: wakeup: Fix build error caused by missing SRCU support
2018-08-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ideLinus Torvalds7-9/+8
Pull IDE updates from David Miller: - Remove redundant variables (Colin Ian King) - Expected switch fall-through annotations (Gustavo A. R. Silva) * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide: ide: mark expected switch fall-throughs ide-tape: remove redundant variable buffer_size ide: remove redundant variables queue_run_ms and left
2018-08-22Merge tag 'for-4.19' of git://git.sourceforge.jp/gitroot/uclinux-h8/linuxLinus Torvalds1-3/+3
Pull arch/h8300 updates from Yoshinori Sato. * tag 'for-4.19' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux: h8300: fix IRQ no arch/h8300: add a defconfig target arch/h8300: eliminate kgbd.c warning arch/h8300: eliminate ptrace.h warnings h8300:let the checker know that size_t is ulong h8300: Don't include linux/kernel.h in asm/atomic.h h8300: remove unnecessary of_platform_populate call h8300: Correct signature of test_bit() h8300: irqchip: fix warning h8300: switch to NO_BOOTMEM h8300: gcc-8.1 fix h8300: Add missing output register.
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