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2017-06-28vfio: New external user group/file matchAlex Williamson3-8/+30
At the point where the kvm-vfio pseudo device wants to release its vfio group reference, we can't always acquire a new reference to make that happen. The group can be in a state where we wouldn't allow a new reference to be added. This new helper function allows a caller to match a file to a group to facilitate this. Given a file and group, report if they match. Thus the caller needs to already have a group reference to match to the file. This allows the deletion of a group without acquiring a new reference. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Cc: stable@vger.kernel.org
2017-06-28kvm-vfio: Decouple only when we match a groupAlex Williamson1-7/+6
Unset-KVM and decrement-assignment only when we find the group in our list. Otherwise we can get out of sync if the user triggers this for groups that aren't currently on our list. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Cc: stable@vger.kernel.org
2017-06-28vfio: Fix group release deadlockAlex Williamson1-1/+36
If vfio_iommu_group_notifier() acquires a group reference and that reference becomes the last reference to the group, then vfio_group_put introduces a deadlock code path where we're trying to unregister from the iommu notifier chain from within a callout of that chain. Use a work_struct to release this reference asynchronously. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Cc: stable@vger.kernel.org
2017-06-13vfio: Use ERR_CAST() instead of open coding itDan Carpenter1-1/+1
It's a small cleanup to use ERR_CAST() here. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2017-06-13vfio/pci: Add Intel XXV710 to hidden INTx devicesAlex Williamson1-2/+2
XXV710 has the same broken INTx behavior as the rest of the X/XL710 series, the interrupt status register is not wired to report pending INTx interrupts, thus we never associate the interrupt to the device. Extend the device IDs to include these so that we hide that the device supports INTx at all to the user. Reported-by: Stefan Assmann <sassmann@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
2017-06-12Linux 4.12-rc5v4.12-rc5Linus Torvalds1-1/+1
2017-06-12Merge branch 'for-linus' of ↵Linus Torvalds19-330/+330
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull key subsystem fixes from James Morris: "Here are a bunch of fixes for Linux keyrings, including: - Fix up the refcount handling now that key structs use the refcount_t type and the refcount_t ops don't allow a 0->1 transition. - Fix a potential NULL deref after error in x509_cert_parse(). - Don't put data for the crypto algorithms to use on the stack. - Fix the handling of a null payload being passed to add_key(). - Fix incorrect cleanup an uninitialised key_preparsed_payload in key_update(). - Explicit sanitisation of potentially secure data before freeing. - Fixes for the Diffie-Helman code" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (23 commits) KEYS: fix refcount_inc() on zero KEYS: Convert KEYCTL_DH_COMPUTE to use the crypto KPP API crypto : asymmetric_keys : verify_pefile:zero memory content before freeing KEYS: DH: add __user annotations to keyctl_kdf_params KEYS: DH: ensure the KDF counter is properly aligned KEYS: DH: don't feed uninitialized "otherinfo" into KDF KEYS: DH: forbid using digest_null as the KDF hash KEYS: sanitize key structs before freeing KEYS: trusted: sanitize all key material KEYS: encrypted: sanitize all key material KEYS: user_defined: sanitize key payloads KEYS: sanitize add_key() and keyctl() key payloads KEYS: fix freeing uninitialized memory in key_update() KEYS: fix dereferencing NULL payload with nonzero length KEYS: encrypted: use constant-time HMAC comparison KEYS: encrypted: fix race causing incorrect HMAC calculations KEYS: encrypted: fix buffer overread in valid_master_desc() KEYS: encrypted: avoid encrypting/decrypting stack buffers KEYS: put keyring if install_session_keyring_to_cred() fails KEYS: Delete an error message for a failed memory allocation in get_derived_key() ...
2017-06-12compiler, clang: properly override 'inline' for clangLinus Torvalds1-1/+2
Commit abb2ea7dfd82 ("compiler, clang: suppress warning for unused static inline functions") just caused more warnings due to re-defining the 'inline' macro. So undef it before re-defining it, and also add the 'notrace' attribute like the gcc version that this is overriding does. Maybe this makes clang happier. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-11Merge tag 'random_for_linus_stable' of ↵Linus Torvalds1-6/+43
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random Pull randomness fixes from Ted Ts'o: "Improve performance by using a lockless update mechanism suggested by Linus, and make sure we refresh per-CPU entropy returned get_random_* as soon as the CRNG is initialized" * tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: random: invalidate batched entropy after crng init random: use lockless method of accessing and updating f->reg_idx
2017-06-11Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds13-120/+149
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Fix various bug fixes in ext4 caused by races and memory allocation failures" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix fdatasync(2) after extent manipulation operations ext4: fix data corruption for mmap writes ext4: fix data corruption with EXT4_GET_BLOCKS_ZERO ext4: fix quota charging for shared xattr blocks ext4: remove redundant check for encrypted file on dio write path ext4: remove unused d_name argument from ext4_search_dir() et al. ext4: fix off-by-one error when writing back pages before dio read ext4: fix off-by-one on max nr_pages in ext4_find_unwritten_pgoff() ext4: keep existing extra fields when inode expands ext4: handle the rest of ext4_mb_load_buddy() ENOMEM errors ext4: fix off-by-in in loop termination in ext4_find_unwritten_pgoff() ext4: fix SEEK_HOLE jbd2: preserve original nofs flag during journal restart ext4: clear lockdep subtype for quota files on quota off
2017-06-11Merge tag 'gpio-v4.12-2' of ↵Linus Torvalds4-20/+47
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "A few overdue GPIO patches for the v4.12 kernel. - Fix debounce logic on the Aspeed platform. - Fix the "virtual gpio" things on the Intel Crystal Cove. - Fix the blink counter selection on the MVEBU platform" * tag 'gpio-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: mvebu: fix gpio bank registration when pwm is used gpio: mvebu: fix blink counter register selection MAINTAINERS: remove self from GPIO maintainers gpio: crystalcove: Do not write regular gpio registers for virtual GPIOs gpio: aspeed: Don't attempt to debounce if disabled
2017-06-11Merge tag 'char-misc-4.12-rc5' of ↵Linus Torvalds5-8/+10
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small driver fixes for 4.12-rc5. Nothing major here, just some small bugfixes found by people testing, and a MAINTAINERS file update for the genwqe driver. All have been in linux-next with no reported issues" [ The cxl driver fix came in through the powerpc tree earlier ] * tag 'char-misc-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: cxl: Avoid double free_irq() for psl,slice interrupts mei: make sysfs modalias format similar as uevent modalias drivers: char: mem: Fix wraparound check to allow mappings up to the end MAINTAINERS: Change maintainer of genwqe driver goldfish_pipe: use GFP_ATOMIC under spin lock firmware: vpd: do not leak kobjects firmware: vpd: avoid potential use-after-free when destroying section firmware: vpd: do not leave freed section attributes to the list
2017-06-11Merge tag 'staging-4.12-rc5' of ↵Linus Torvalds10-46/+47
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO fixes from Greg KH: "These are mostly all IIO driver fixes, resolving a number of tiny issues. There's also a ccree and lustre fix in here as well, both fix problems found in those codebases. All have been in linux-next with no reported issues" * tag 'staging-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: ccree: fix buffer copy staging/lustre/lov: remove set_fs() call from lov_getstripe() staging: ccree: add CRYPTO dependency iio: adc: sun4i-gpadc-iio: fix parent device being used in devm function iio: light: ltr501 Fix interchanged als/ps register field iio: adc: bcm_iproc_adc: swap primary and secondary isr handler's iio: trigger: fix NULL pointer dereference in iio_trigger_write_current() iio: adc: max9611: Fix attribute measure unit iio: adc: ti_am335x_adc: allocating too much in probe iio: adc: sun4i-gpadc-iio: Fix module autoload when OF devices are registered iio: adc: sun4i-gpadc-iio: Fix module autoload when PLATFORM devices are registered iio: proximity: as3935: fix iio_trigger_poll issue iio: proximity: as3935: fix AS3935_INT mask iio: adc: Max9611: checking for ERR_PTR instead of NULL in probe iio: proximity: as3935: recalibrate RCO after resume
2017-06-11Merge tag 'usb-4.12-rc5' of ↵Linus Torvalds10-35/+102
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB fixes for 4.12-rc5 They are for some reported issues in the chipidea and gadget drivers. Nothing major. All have been in linux-next for a while with no reported issues" * tag 'usb-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: gadget: udc: renesas_usb3: Fix PN_INT_ENA disabling timing usb: gadget: udc: renesas_usb3: lock for PN_ registers access usb: gadget: udc: renesas_usb3: fix deadlock by spinlock usb: gadget: udc: renesas_usb3: fix pm_runtime functions calling usb: gadget: f_mass_storage: Serialize wake and sleep execution usb: dwc2: add support for the DWC2 controller on Meson8 SoCs phy: qualcomm: phy-qcom-qmp: fix application of sizeof to pointer usb: musb: dsps: keep VBUS on for host-only mode usb: chipidea: core: check before accessing ci_role in ci_role_show usb: chipidea: debug: check before accessing ci_role phy: qcom-qmp: fix return value check in qcom_qmp_phy_create() usb: chipidea: udc: fix NULL pointer dereference if udc_start failed usb: chipidea: imx: Do not access CLKONOFF on i.MX51
2017-06-11Merge tag 'scsi-fixes' of ↵Linus Torvalds20-77/+101
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of user visible fixes (excepting one format string change). Four of the qla2xxx fixes only affect the firmware dump path, but it's still important to the enterprise. The rest are various NULL pointer crash conditions or outright driver hangs" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: cxgb4i: libcxgbi: in error case RST tcp conn scsi: scsi_debug: Avoid PI being disabled when TPGS is enabled scsi: qla2xxx: Fix extraneous ref on sp's after adapter break scsi: lpfc: prevent potential null pointer dereference scsi: lpfc: Avoid NULL pointer dereference in lpfc_els_abort() scsi: lpfc: nvmet_fc: fix format string scsi: qla2xxx: Fix crash due to NULL pointer dereference of ctx scsi: qla2xxx: Fix mailbox pointer error in fwdump capture scsi: qla2xxx: Set bit 15 for DIAG_ECHO_TEST MBC scsi: qla2xxx: Modify T262 FW dump template to specify same start/end to debug customer issues scsi: qla2xxx: Fix crash due to mismatch mumber of Q-pair creation for Multi queue scsi: qla2xxx: Fix NULL pointer access due to redundant fc_host_port_name call scsi: qla2xxx: Fix recursive loop during target mode configuration for ISP25XX leaving system unresponsive scsi: bnx2fc: fix race condition in bnx2fc_get_host_stats() scsi: qla2xxx: don't disable a not previously enabled PCI device
2017-06-11Merge branch 'libnvdimm-fixes' of ↵Linus Torvalds1-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fix from Dan Williams: "We expanded the device-dax fs type in 4.12 to be a generic provider of a struct dax_device with an embedded inode. However, Sasha found some basic negative testing was not run to verify that this fs cleanly handles being mounted directly. Note that the fresh rebase was done to remove an unnecessary Cc: <stable> tag, but this commit otherwise had a build success notification from the 0day robot." * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: device-dax: fix 'dax' device filesystem inode destruction crash
2017-06-11Merge tag 'hexagon-for-linus-v4.12-rc5' of ↵Linus Torvalds1-3/+2
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hexagon fix from Guenter Roeck: "This fixes a build error seen when building hexagon images. Richard sent me an Ack, but didn't reply when asked if he wants me to send the patch to you directly, so I figured I'd just do it" * tag 'hexagon-for-linus-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hexagon: Use raw_copy_to_user
2017-06-11Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds21-59/+153
Pull KVM fixes from Paolo Bonzini: "Bug fixes (ARM, s390, x86)" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: async_pf: avoid async pf injection when in guest mode KVM: cpuid: Fix read/write out-of-bounds vulnerability in cpuid emulation arm: KVM: Allow unaligned accesses at HYP arm64: KVM: Allow unaligned accesses at EL2 arm64: KVM: Preserve RES1 bits in SCTLR_EL2 KVM: arm/arm64: Handle possible NULL stage2 pud when ageing pages KVM: nVMX: Fix exception injection kvm: async_pf: fix rcu_irq_enter() with irqs enabled KVM: arm/arm64: vgic-v3: Fix nr_pre_bits bitfield extraction KVM: s390: fix ais handling vs cpu model KVM: arm/arm64: Fix isues with GICv2 on GICv3 migration
2017-06-11KVM: async_pf: avoid async pf injection when in guest modeWanpeng Li3-4/+7
INFO: task gnome-terminal-:1734 blocked for more than 120 seconds. Not tainted 4.12.0-rc4+ #8 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. gnome-terminal- D 0 1734 1015 0x00000000 Call Trace: __schedule+0x3cd/0xb30 schedule+0x40/0x90 kvm_async_pf_task_wait+0x1cc/0x270 ? __vfs_read+0x37/0x150 ? prepare_to_swait+0x22/0x70 do_async_page_fault+0x77/0xb0 ? do_async_page_fault+0x77/0xb0 async_page_fault+0x28/0x30 This is triggered by running both win7 and win2016 on L1 KVM simultaneously, and then gives stress to memory on L1, I can observed this hang on L1 when at least ~70% swap area is occupied on L0. This is due to async pf was injected to L2 which should be injected to L1, L2 guest starts receiving pagefault w/ bogus %cr2(apf token from the host actually), and L1 guest starts accumulating tasks stuck in D state in kvm_async_pf_task_wait() since missing PAGE_READY async_pfs. This patch fixes the hang by doing async pf when executing L1 guest. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-11hexagon: Use raw_copy_to_userGuenter Roeck1-3/+2
Commit ac4691fac8ad ("hexagon: switch to RAW_COPY_USER") replaced __copy_to_user_hexagon() with raw_copy_to_user(), but did not catch all callers, resulting in the following build error. arch/hexagon/mm/uaccess.c: In function '__clear_user_hexagon': arch/hexagon/mm/uaccess.c:40:3: error: implicit declaration of function '__copy_to_user_hexagon' Fixes: ac4691fac8ad ("hexagon: switch to RAW_COPY_USER") Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Richard Kuo <rkuo@codeaurora.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-06-10Merge branch 'for-linus' of ↵Linus Torvalds5-20/+63
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull UFS fixes from Al Viro: "This is just the obvious backport fodder; I'm pretty sure that there will be more - definitely so wrt performance and quite possibly correctness as well" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ufs: we need to sync inode before freeing it excessive checks in ufs_write_failed() and ufs_evict_inode() ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path ufs_extend_tail(): fix the braino in calling conventions of ufs_new_fragments() ufs: set correct ->s_maxsize ufs: restore maintaining ->i_blocks fix ufs_isblockset() ufs: restore proper tail allocation
2017-06-10Merge branch 'for-linus-4.12' of ↵Linus Torvalds6-16/+139
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "Some fixes that Dave Sterba collected. We've been hitting an early enospc problem on production machines that Omar tracked down to an old int->u64 mistake. I waited a bit on this pull to make sure it was really the problem from production, but it's on ~2100 hosts now and I think we're good. Omar also noticed a commit in the queue would make new early ENOSPC problems. I pulled that out for now, which is why the top three commits are younger than the rest. Otherwise these are all fixes, some explaining very old bugs that we've been poking at for a while" * 'for-linus-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix delalloc accounting leak caused by u32 overflow Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_io btrfs: tree-log.c: Wrong printk information about namelen btrfs: fix race with relocation recovery and fs_root setup btrfs: fix memory leak in update_space_info failure path btrfs: use correct types for page indices in btrfs_page_exists_in_range btrfs: fix incorrect error return ret being passed to mapping_set_error btrfs: Make flush bios explicitely sync btrfs: fiemap: Cache and merge fiemap extent before submit it to user
2017-06-10Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Misc fixes: a Geode fix plus a microcode loader fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode/intel: Clear patch pointer before jettisoning the initrd x86/cpu/cyrix: Add alternative Device ID of Geode GX1 SoC
2017-06-10Merge branch 'smp-urgent-for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull CPU hotplug fix from Ingo Molnar: "An error handling corner case fix" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Drop the device lock on error
2017-06-10Merge branch 'rcu-urgent-for-linus' of ↵Linus Torvalds4-11/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU fixes from Ingo Molnar: "Fix an SRCU bug affecting KVM IRQ injection" * 'rcu-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: srcu: Allow use of Classic SRCU from both process and interrupt context srcu: Allow use of Tiny/Tree SRCU from both process and interrupt context
2017-06-10Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds22-156/+259
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "This is mostly tooling fixes, plus an instruction pointer filtering fix. It's more fixes than usual - Arnaldo got back from a longer vacation and there was a backlog" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) perf symbols: Kill dso__build_id_is_kmod() perf symbols: Keep DSO->symtab_type after decompress perf tests: Decompress kernel module before objdump perf tools: Consolidate error path in __open_dso() perf tools: Decompress kernel module when reading DSO data perf annotate: Use dso__decompress_kmodule_path() perf tools: Introduce dso__decompress_kmodule_{fd,path} perf tools: Fix a memory leak in __open_dso() perf annotate: Fix symbolic link of build-id cache perf/core: Drop kernel samples even though :u is specified perf script python: Remove dups in documentation examples perf script python: Updated trace_unhandled() signature perf script python: Fix wrong code snippets in documentation perf script: Fix documentation errors perf script: Fix outdated comment for perf-trace-python perf probe: Fix examples section of documentation perf report: Ensure the perf DSO mapping matches what libdw sees perf report: Include partial stacks unwound with libdw perf annotate: Add missing powerpc triplet perf test: Disable breakpoint signal tests for powerpc ...
2017-06-10Merge branch 'efi-urgent-for-linus' of ↵Linus Torvalds1-1/+25
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI fix from Ingo Molnar: "A boot crash fix for certain systems where the kernel would trust a piece of firmware data it should not have" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: Fix boot panic because of invalid BGRT image address
2017-06-10ufs: we need to sync inode before freeing itAl Viro1-0/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-10Merge tag 'iommu-fixes-v4.12-rc4' of ↵Linus Torvalds7-28/+42
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fixes from Joerg Roedel: - another compile-fix for my header cleanup - a couple of fixes for the recently merged IOMMU probe deferal code - fixes for ACPI/IORT code necessary with IOMMU probe deferal * tag 'iommu-fixes-v4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: arm: dma-mapping: Reset the device's dma_ops ACPI/IORT: Move the check to get iommu_ops from translated fwspec ARM: dma-mapping: Don't tear down third-party mappings ACPI/IORT: Ignore all errors except EPROBE_DEFER iommu/of: Ignore all errors except EPROBE_DEFER iommu/of: Fix check for returning EPROBE_DEFER iommu/dma: Fix function declaration
2017-06-10Merge branch 'for-linus' of ↵Linus Torvalds2-1/+17
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: - mark "guest" RMI device as pass-through port to avoid "phantom" ALPS toouchpad on newer Lenovo Carbons - add two more laptops to the Elantech's lists of devices using CRC mode * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: synaptics-rmi4 - register F03 port as pass-through serio Input: elantech - add Fujitsu Lifebook E546/E557 to force crc_enabled
2017-06-10Merge tag 'md/4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/mdLinus Torvalds5-4/+21
Pull MD bugfix from Shaohua Li: "One bug fix from Neil Brown for MD. The bug was introduced in this cycle" * tag 'md/4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: md: initialise ->writes_pending in personality modules.
2017-06-10Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds12-80/+214
Pull block fixes from Jens Axboe: "A set of fixes in the area of block IO, that should go into the next -rc release. This contains: - An OOPS fix from Dmitry, fixing a regression with the bio integrity code in this series. - Fix truncation of elevator io context cache name, from Eric Biggers. - NVMe pull from Christoph includes FC fixes from James, APST fixes/tweaks from Kai-Heng, removal fix from Rakesh, and an RDMA fix from Sagi. - Two tweaks for the block throttling code. One from Joseph Qi, fixing an oops from the timer code, and one from Shaohua, improving the behavior on rotatonal storage. - Two blk-mq fixes from Ming, fixing corner cases with the direct issue code. - Locking fix for bfq cgroups from Paolo" * 'for-linus' of git://git.kernel.dk/linux-block: block, bfq: access and cache blkg data only when safe Fix loop device flush before configure v3 blk-throttle: set default latency baseline for harddisk blk-throttle: fix NULL pointer dereference in throtl_schedule_pending_timer nvme: relax APST default max latency to 100ms nvme: only consider exit latency when choosing useful non-op power states nvme-fc: fix missing put reference on controller create failure nvme-fc: on lldd/transport io error, terminate association nvme-rdma: fast fail incoming requests while we reconnect nvme-pci: fix multiple ctrl removal scheduling nvme: fix hang in remove path elevator: fix truncation of icq_cache_name blk-mq: fix direct issue blk-mq: pass correct hctx to blk_mq_try_issue_directly bio-integrity: Do not allocate integrity context for bio w/o data
2017-06-10Merge tag 'sound-4.12-rc5' of ↵Linus Torvalds20-96/+216
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This update contains a slightly hight amount of changes due to the pending ASoC fixes: - ALSA timer core got a couple of fixes for races between read and ioctl, leading to potential read of uninitialized kmalloced memory - ASoC core fixed the de-registration pattern for use-after-free bug - The rewrite of probe code in ASoC Intel Skylake for i915 component - ASoC R-snd got a series of fixes for SSI - ASoC simple-card, atmel, da7213, and rt286 trivial fixes - HD-audio ALC269 quirk and rearrangement of quirk table" * tag 'sound-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: timer: Fix missing queue indices reset at SNDRV_TIMER_IOCTL_SELECT ALSA: timer: Fix race between read and ioctl ALSA: hda/realtek - Reorder ALC269 ASUS quirk entries ALSA: hda/realtek: Fix mic and headset jack sense on Asus X705UD ASoC: rsnd: fixup parent_clk_name of AUDIO_CLKOUTx ASoC: Intel: Skylake: Fix to parse consecutive string tkns in manifest ASoC: Intel: Skylake: Fix IPC rx_list corruption ASoC: rsnd: SSI PIO adjust to 24bit mode MAINTAINERS: Update email address for patches to Wolfson parts ASoC: Fix use-after-free at card unregistration ASoC: simple-card: fix mic jack initialization ASoC: rsnd: don't call free_irq() on Parent SSI ASoC: atmel-classd: sync regcache when resuming ASoC: rsnd: don't use PDTA bit for 24bit on SSI ASoC: da7213: Fix incorrect usage of bitwise '&' operator for SRM check rt286: add Thinkpad Helix 2 to force_combo_jack_table ASoC: Intel: Skylake: Move i915 registration to worker thread
2017-06-10Merge tag 'drm-fixes-for-v4.12-rc5' of ↵Linus Torvalds39-257/+334
git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "Intel, nouveau, rockchip, vmwgfx, imx, meson, mediatek and core fixes. Bit more spread out fixes this time, fixes for 7 drivers + a couple of core fixes. i915 and vmwgfx are the main ones. The vmwgfx ones fix a bunch of regressions in their atomic rework, and a few fixes destined for stable. i915 has some 4.12 regressions and older things that need to be fixed in stable as well. nouveau also has some runtime pm fixes and a timer list handling fix, otherwise a couple of core and small driver regression fixes" * tag 'drm-fixes-for-v4.12-rc5' of git://people.freedesktop.org/~airlied/linux: (37 commits) drm/i915: fix warning for unused variable drm/meson: Fix driver bind when only CVBS is available drm/i915: Fix 90/270 rotated coordinates for FBC drm/i915: Restore has_fbc=1 for ILK-M drm/i915: Workaround VLV/CHV DSI scanline counter hardware fail drm/i915: Fix logical inversion for gen4 quirking drm/i915: Guard against i915_ggtt_disable_guc() being invoked unconditionally drm/i915: Always recompute watermarks when distrust_bios_wm is set, v2. drm/i915: Prevent the system suspend complete optimization drm/i915/psr: disable psr2 for resolution greater than 32X20 drm/i915: Hold a wakeref for probing the ring registers drm/i915: Short-circuit i915_gem_wait_for_idle() if already idle drm/i915: Disable decoupled MMIO drm/i915/guc: Remove stale comment for q_fail drm/vmwgfx: Bump driver minor and date drm/vmwgfx: Remove unused legacy cursor functions drm/vmwgfx: fix spelling mistake "exeeds" -> "exceeds" drm/vmwgfx: Fix large topology crash drm/vmwgfx: Make sure to update STDU when FB is updated drm/vmwgfx: Make sure backup_handle is always valid ...
2017-06-09excessive checks in ufs_write_failed() and ufs_evict_inode()Al Viro1-13/+5
As it is, short copy in write() to append-only file will fail to truncate the excessive allocated blocks. As the matter of fact, all checks in ufs_truncate_blocks() are either redundant or wrong for that caller. As for the only other caller (ufs_evict_inode()), we only need the file type checks there. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09ufs_getfrag_block(): we only grab ->truncate_mutex on block creation pathAl Viro1-1/+3
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09ufs_extend_tail(): fix the braino in calling conventions of ufs_new_fragments()Al Viro1-1/+2
... and it really needs splitting into "new" and "extend" cases, but that's for later Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09ufs: set correct ->s_maxsizeAl Viro1-0/+18
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09ufs: restore maintaining ->i_blocksAl Viro2-1/+26
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09fix ufs_isblockset()Al Viro1-3/+7
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09ufs: restore proper tail allocationAl Viro1-1/+1
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09Btrfs: fix delalloc accounting leak caused by u32 overflowOmar Sandoval1-2/+2
btrfs_calc_trans_metadata_size() does an unsigned 32-bit multiplication, which can overflow if num_items >= 4 GB / (nodesize * BTRFS_MAX_LEVEL * 2). For a nodesize of 16kB, this overflow happens at 16k items. Usually, num_items is a small constant passed to btrfs_start_transaction(), but we also use btrfs_calc_trans_metadata_size() for metadata reservations for extent items in btrfs_delalloc_{reserve,release}_metadata(). In drop_outstanding_extents(), num_items is calculated as inode->reserved_extents - inode->outstanding_extents. The difference between these two counters is usually small, but if many delalloc extents are reserved and then the outstanding extents are merged in btrfs_merge_extent_hook(), the difference can become large enough to overflow in btrfs_calc_trans_metadata_size(). The overflow manifests itself as a leak of a multiple of 4 GB in delalloc_block_rsv and the metadata bytes_may_use counter. This in turn can cause early ENOSPC errors. Additionally, these WARN_ONs in extent-tree.c will be hit when unmounting: WARN_ON(fs_info->delalloc_block_rsv.size > 0); WARN_ON(fs_info->delalloc_block_rsv.reserved > 0); WARN_ON(space_info->bytes_pinned > 0 || space_info->bytes_reserved > 0 || space_info->bytes_may_use > 0); Fix it by casting nodesize to a u64 so that btrfs_calc_trans_metadata_size() does a full 64-bit multiplication. While we're here, do the same in btrfs_calc_trunc_metadata_size(); this can't overflow with any existing uses, but it's better to be safe here than have another hard-to-debug problem later on. Cc: stable@vger.kernel.org Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2017-06-09Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_ioLiu Bo1-1/+1
Before this, we use 'filled' mode here, ie. if all range has been filled with EXTENT_DEFRAG bits, get to clear it, but if the defrag range joins the adjacent delalloc range, then we'll have EXTENT_DEFRAG bits in extent_state until releasing this inode's pages, and that prevents extent_data from being freed. This clears the bit if any was found within the ordered extent. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2017-06-09btrfs: tree-log.c: Wrong printk information about namelenSu Yue1-1/+1
In verify_dir_item, it wants to printk name_len of dir_item but printk data_len acutally. Fix it by calling btrfs_dir_name_len instead of btrfs_dir_data_len. Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2017-06-09Merge tag 'for-linus-4.12b-rc5-tag' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fix from Juergen Gross: "A fix for Xen on ARM when dealing with 64kB page size of a guest" * tag 'for-linus-4.12b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/privcmd: Support correctly 64KB page granularity when mapping memory
2017-06-09Input: synaptics-rmi4 - register F03 port as pass-through serioDmitry Torokhov1-1/+1
The 5th generation Thinkpad X1 Carbons use Synaptics touchpads accessible over SMBus/RMI, combined with ALPS or Elantech trackpoint devices instead of classic IBM/Lenovo trackpoints. Unfortunately there is no way for ALPS driver to detect whether it is dealing with touchpad + trackpoint combination or just a trackpoint, so we end up with a "phantom" dualpoint ALPS device in addition to real touchpad and trackpoint. Given that we do not have any special advanced handling for ALPS or Elantech trackpoints (unlike IBM trackpoints that have separate driver and a host of options) we are better off keeping the trackpoints in PS/2 emulation mode. We achieve that by setting serio type to SERIO_PS_PSTHRU, which will limit number of protocols psmouse driver will try. In addition to getting rid of the "phantom" touchpads, this will also speed up probing of F03 pass-through port. Reported-by: Damjan Georgievski <gdamjan@gmail.com> Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-06-09Merge tag 'powerpc-4.12-5' of ↵Linus Torvalds19-58/+131
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Mostly fairly minor, of note are: - Fix percpu allocations to be NUMA aware - Limit 4k page size config to 64TB virtual address space - Avoid needlessly restoring FP and vector registers Thanks to Aneesh Kumar K.V, Breno Leitao, Christophe Leroy, Frederic Barrat, Madhavan Srinivasan, Michael Bringmann, Nicholas Piggin, Vaibhav Jain" * tag 'powerpc-4.12-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/book3s64: Move PPC_DT_CPU_FTRs and enable it by default powerpc/mm/4k: Limit 4k page size config to 64TB virtual address space cxl: Fix error path on bad ioctl powerpc/perf: Fix Power9 test_adder fields powerpc/numa: Fix percpu allocations to be NUMA aware cxl: Avoid double free_irq() for psl,slice interrupts powerpc/kernel: Initialize load_tm on task creation powerpc/kernel: Fix FP and vector register restoration powerpc/64: Reclaim CPU_FTR_SUBCORE powerpc/hotplug-mem: Fix missing endian conversion of aa_index powerpc/sysdev/simple_gpio: Fix oops in gpio save_regs function powerpc/spufs: Fix coredump of SPU contexts powerpc/64s: Add dt_cpu_ftrs boot time setup option
2017-06-09Merge tag 'armsoc-fixes' of ↵Linus Torvalds12-16/+45
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Been sitting on these for a couple of weeks waiting on some larger batches to come in but it's been pretty quiet. Just your garden variety fixes here: - A few maintainers updates (ep93xx, Exynos, TI, Marvell) - Some PM fixes for Atmel/at91 and Marvell - A few DT fixes for Marvell, Versatile, TI Keystone, bcm283x - A reset driver patch to set module license for symbol access" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: MAINTAINERS: EP93XX: Update maintainership MAINTAINERS: remove kernel@stlinux.com obsolete mailing list ARM: dts: versatile: use #include "..." to include local DT MAINTAINERS: add device-tree files to TI DaVinci entry ARM: at91: select CONFIG_ARM_CPU_SUSPEND ARM: dts: keystone-k2l: fix broken Ethernet due to disabled OSR arm64: defconfig: enable some core options for 64bit Rockchip socs arm64: marvell: dts: fix interrupts in 7k/8k crypto nodes reset: hi6220: Set module license so that it can be loaded MAINTAINERS: add irqchip related drivers to Marvell EBU maintainers MAINTAINERS: sort F entries for Marvell EBU maintainers ARM: davinci: PM: Do not free useful resources in normal path in 'davinci_pm_init' ARM: davinci: PM: Free resources in error handling path in 'davinci_pm_init' ARM: dts: bcm283x: Reserve first page for firmware memory: atmel-ebi: mark PM ops as __maybe_unused MAINTAINERS: Remove Javier Martinez Canillas as reviewer for Exynos
2017-06-09device-dax: fix 'dax' device filesystem inode destruction crashDan Williams1-2/+7
The inode destruction path for the 'dax' device filesystem incorrectly assumes that the inode was initialized through 'alloc_dax()'. However, if someone attempts to directly mount the dax filesystem with 'mount -t dax dax mnt' that will bypass 'alloc_dax()' and the following failure signatures may occur as a result: kill_dax() must be called before final iput() WARNING: CPU: 2 PID: 1188 at drivers/dax/super.c:243 dax_destroy_inode+0x48/0x50 RIP: 0010:dax_destroy_inode+0x48/0x50 Call Trace: destroy_inode+0x3b/0x60 evict+0x139/0x1c0 iput+0x1f9/0x2d0 dentry_unlink_inode+0xc3/0x160 __dentry_kill+0xcf/0x180 ? dput+0x37/0x3b0 dput+0x3a3/0x3b0 do_one_tree+0x36/0x40 shrink_dcache_for_umount+0x2d/0x90 generic_shutdown_super+0x1f/0x120 kill_anon_super+0x12/0x20 deactivate_locked_super+0x43/0x70 deactivate_super+0x4e/0x60 general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC RIP: 0010:kfree+0x6d/0x290 Call Trace: <IRQ> dax_i_callback+0x22/0x60 ? dax_destroy_inode+0x50/0x50 rcu_process_callbacks+0x298/0x740 ida_remove called for id=0 which is not allocated. WARNING: CPU: 0 PID: 0 at lib/idr.c:383 ida_remove+0x110/0x120 [..] Call Trace: <IRQ> ida_simple_remove+0x2b/0x50 ? dax_destroy_inode+0x50/0x50 dax_i_callback+0x3c/0x60 rcu_process_callbacks+0x298/0x740 Add missing initialization of the 'struct dax_device' and inode so that the destruction path does not kfree() or ida_simple_remove() uninitialized data. Fixes: 7b6be8444e0f ("dax: refactor dax-fs into a generic provider of 'struct dax_device' instances") Reported-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-09efi: Fix boot panic because of invalid BGRT image addressDave Young1-1/+25
Maniaxx reported a kernel boot crash in the EFI code, which I emulated by using same invalid phys addr in code: BUG: unable to handle kernel paging request at ffffffffff280001 IP: efi_bgrt_init+0xfb/0x153 ... Call Trace: ? bgrt_init+0xbc/0xbc acpi_parse_bgrt+0xe/0x12 acpi_table_parse+0x89/0xb8 acpi_boot_init+0x445/0x4e2 ? acpi_parse_x2apic+0x79/0x79 ? dmi_ignore_irq0_timer_override+0x33/0x33 setup_arch+0xb63/0xc82 ? early_idt_handler_array+0x120/0x120 start_kernel+0xb7/0x443 ? early_idt_handler_array+0x120/0x120 x86_64_start_reservations+0x29/0x2b x86_64_start_kernel+0x154/0x177 secondary_startup_64+0x9f/0x9f There is also a similar bug filed in bugzilla.kernel.org: https://bugzilla.kernel.org/show_bug.cgi?id=195633 The crash is caused by this commit: 7b0a911478c7 efi/x86: Move the EFI BGRT init code to early init code The root cause is the firmware on those machines provides invalid BGRT image addresses. In a kernel before above commit BGRT initializes late and uses ioremap() to map the image address. Ioremap validates the address, if it is not a valid physical address ioremap() just fails and returns. However in current kernel EFI BGRT initializes early and uses early_memremap() which does not validate the image address, and kernel panic happens. According to ACPI spec the BGRT image address should fall into EFI_BOOT_SERVICES_DATA, see the section 5.2.22.4 of below document: http://www.uefi.org/sites/default/files/resources/ACPI_6_1.pdf Fix this issue by validating the image address in efi_bgrt_init(). If the image address does not fall into any EFI_BOOT_SERVICES_DATA areas we just bail out with a warning message. Reported-by: Maniaxx <tripleshiftone@gmail.com> Signed-off-by: Dave Young <dyoung@redhat.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Fixes: 7b0a911478c7 ("efi/x86: Move the EFI BGRT init code to early init code") Link: http://lkml.kernel.org/r/20170609084558.26766-2-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>