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* Merge remote-tracking branch 'google/common/android-4.4-p' into ↵Michael Bestas2022-02-04
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lineage-18.1-caf-msm8998 * google/common/android-4.4-p: Linux 4.4.302 Input: i8042 - Fix misplaced backport of "add ASUS Zenbook Flip to noselftest list" KVM: x86: Fix misplaced backport of "work around leak of uninitialized stack contents" Revert "tc358743: fix register i2c_rd/wr function fix" Revert "drm/radeon/ci: disable mclk switching for high refresh rates (v2)" Bluetooth: MGMT: Fix misplaced BT_HS check ipv4: tcp: send zero IPID in SYNACK messages ipv4: raw: lock the socket in raw_bind() hwmon: (lm90) Reduce maximum conversion rate for G781 drm/msm: Fix wrong size calculation net-procfs: show net devices bound packet types ipv4: avoid using shared IP generator for connected sockets net: fix information leakage in /proc/net/ptype ipv6_tunnel: Rate limit warning messages scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put() USB: core: Fix hang in usb_kill_urb by adding memory barriers usb-storage: Add unusual-devs entry for VL817 USB-SATA bridge tty: Add support for Brainboxes UC cards. tty: n_gsm: fix SW flow control encoding/handling serial: stm32: fix software flow control transfer PM: wakeup: simplify the output logic of pm_show_wakelocks() udf: Fix NULL ptr deref when converting from inline format udf: Restore i_lenAlloc when inode expansion fails scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices s390/hypfs: include z/VM guests with access control group set Bluetooth: refactor malicious adv data check can: bcm: fix UAF of bcm op Linux 4.4.301 drm/i915: Flush TLBs before releasing backing store Linux 4.4.300 lib82596: Fix IRQ check in sni_82596_probe bcmgenet: add WOL IRQ check net_sched: restore "mpu xxx" handling dmaengine: at_xdmac: Fix at_xdmac_lld struct definition dmaengine: at_xdmac: Fix lld view setting dmaengine: at_xdmac: Print debug message after realeasing the lock dmaengine: at_xdmac: Don't start transactions at tx_submit level netns: add schedule point in ops_exit_list() net: axienet: fix number of TX ring slots for available check net: axienet: Wait for PhyRstCmplt after core reset af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses ext4: don't use the orphan list when migrating an inode ext4: Fix BUG_ON in ext4_bread when write quota data ext4: set csum seed in tmp inode while migrating to extents ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers power: bq25890: Enable continuous conversion for ADC at charging scsi: sr: Don't use GFP_DMA MIPS: Octeon: Fix build errors using clang i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters ALSA: seq: Set upper limit of processed events w1: Misuse of get_user()/put_user() reported by sparse i2c: mpc: Correct I2C reset procedure powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING i2c: i801: Don't silently correct invalid transfer size powerpc/btext: add missing of_node_put powerpc/cell: add missing of_node_put powerpc/powernv: add missing of_node_put powerpc/6xx: add missing of_node_put parisc: Avoid calling faulthandler_disabled() twice serial: core: Keep mctrl register state and cached copy in sync serial: pl010: Drop CR register reset on set_termios dm space map common: add bounds check to sm_ll_lookup_bitmap() dm btree: add a defensive bounds check to insert_at() net: mdio: Demote probed message to debug print btrfs: remove BUG_ON(!eie) in find_parent_nodes btrfs: remove BUG_ON() in find_parent_nodes() ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R() ACPICA: Utilities: Avoid deleting the same object twice in a row um: registers: Rename function names to avoid conflicts and build problems ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0 media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach() media: igorplugusb: receiver overflow should be reported net: bonding: debug: avoid printing debug logs when bond is not notifying peers iwlwifi: mvm: synchronize with FW after multicast commands media: m920x: don't use stack on USB reads media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach() floppy: Add max size check for user space request mwifiex: Fix skb_over_panic in mwifiex_usb_recv() HSI: core: Fix return freed object in hsi_new_client media: b2c2: Add missing check in flexcop_pci_isr: usb: gadget: f_fs: Use stream_open() for endpoint files ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply fs: dlm: filter user dlm messages for kernel locks Bluetooth: Fix debugfs entry leak in hci_register_dev() RDMA/cxgb4: Set queue pair state when being queried mips: bcm63xx: add support for clk_set_parent() mips: lantiq: add support for clk_set_parent() misc: lattice-ecp3-config: Fix task hung when firmware load failed ASoC: samsung: idma: Check of ioremap return value dmaengine: pxa/mmp: stop referencing config->slave_id RDMA/core: Let ib_find_gid() continue search even after empty entry char/mwave: Adjust io port register size ALSA: oss: fix compile error when OSS_DEBUG is enabled powerpc/prom_init: Fix improper check of prom_getprop() ALSA: hda: Add missing rwsem around snd_ctl_remove() calls ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls ALSA: jack: Add missing rwsem around snd_ctl_remove() calls ext4: avoid trim error on fs with small groups net: mcs7830: handle usb read errors properly pcmcia: fix setting of kthread task states can: xilinx_can: xcan_probe(): check for error irq can: softing: softing_startstop(): fix set but not used variable warning spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe ppp: ensure minimum packet size in ppp_write() pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region() pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region() usb: ftdi-elan: fix memory leak on device disconnect media: msi001: fix possible null-ptr-deref in msi001_probe() media: saa7146: mxb: Fix a NULL pointer dereference in mxb_attach() media: dib8000: Fix a memleak in dib8000_init() floppy: Fix hang in watchdog when disk is ejected serial: amba-pl011: do not request memory region twice drm/amdgpu: Fix a NULL pointer dereference in amdgpu_connector_lcd_native_mode() arm64: dts: qcom: msm8916: fix MMC controller aliases netfilter: bridge: add support for pppoe filtering tty: serial: atmel: Call dma_async_issue_pending() tty: serial: atmel: Check return code of dmaengine_submit() crypto: qce - fix uaf on qce_ahash_register_one Bluetooth: stop proccessing malicious adv data Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller can: softing_cs: softingcs_probe(): fix memleak on registration failure media: stk1160: fix control-message timeouts media: pvrusb2: fix control-message timeouts media: dib0700: fix undefined behavior in tuner shutdown media: em28xx: fix control-message timeouts media: mceusb: fix control-message timeouts rtc: cmos: take rtc_lock while reading from CMOS nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind() HID: uhid: Fix worker destroying device without any protection rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled media: uvcvideo: fix division by zero at stream start drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk() can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved} can: gs_usb: fix use of uninitialized variable, detach device on reception of invalid USB data mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe() USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status USB: core: Fix bug in resuming hub's handling of wakeup requests Bluetooth: bfusb: fix division by zero in send path Linux 4.4.299 power: reset: ltc2952: Fix use of floating point literals mISDN: change function names to avoid conflicts net: udp: fix alignment problem in udp4_seq_show() ip6_vti: initialize __ip6_tnl_parm struct in vti6_siocdevprivate scsi: libiscsi: Fix UAF in iscsi_conn_get_param()/iscsi_conn_teardown() phonet: refcount leak in pep_sock_accep rndis_host: support Hytera digital radios xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate sch_qfq: prevent shift-out-of-bounds in qfq_init_qdisc i40e: Fix incorrect netdev's real number of RX/TX queues mac80211: initialize variable have_higher_than_11mbit ieee802154: atusb: fix uninit value in atusb_set_extended_addr Bluetooth: btusb: Apply QCA Rome patches for some ATH3012 models bpf, test: fix ld_abs + vlan push/pop stress test Linux 4.4.298 net: fix use-after-free in tw_timer_handler Input: spaceball - fix parsing of movement data packets Input: appletouch - initialize work before device registration scsi: vmw_pvscsi: Set residual data length conditionally usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear. xhci: Fresco FL1100 controller should not have BROKEN_MSI quirk set. uapi: fix linux/nfc.h userspace compilation errors nfc: uapi: use kernel size_t to fix user-space builds selinux: initialize proto variable in selinux_ip_postroute_compat() recordmcount.pl: fix typo in s390 mcount regex platform/x86: apple-gmux: use resource_size() with res Linux 4.4.297 phonet/pep: refuse to enable an unbound pipe hamradio: improve the incomplete fix to avoid NPD hamradio: defer ax25 kfree after unregister_netdev ax25: NPD bug when detaching AX25 device xen/blkfront: fix bug in backported patch ARM: 9169/1: entry: fix Thumb2 bug in iWMMXt exception handling ALSA: drivers: opl3: Fix incorrect use of vp->state ALSA: jack: Check the return value of kstrdup() hwmon: (lm90) Fix usage of CONFIG2 register in detect function drivers: net: smc911x: Check for error irq bonding: fix ad_actor_system option setting to default qlcnic: potential dereference null pointer of rx_queue->page_ring IB/qib: Fix memory leak in qib_user_sdma_queue_pkts() HID: holtek: fix mouse probing can: kvaser_usb: get CAN clock frequency from device net: usb: lan78xx: add Allied Telesis AT29M2-AF Conflicts: drivers/usb/gadget/function/f_fs.c Change-Id: Iabc390c3c9160c7a2864ffe1125d73412ffdb31d
| * um: registers: Rename function names to avoid conflicts and build problemsRandy Dunlap2022-01-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 077b7320942b64b0da182aefd83c374462a65535 ] The function names init_registers() and restore_registers() are used in several net/ethernet/ and gpu/drm/ drivers for other purposes (not calls to UML functions), so rename them. This fixes multiple build errors. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: linux-um@lists.infradead.org Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Sasha Levin <sashal@kernel.org>
* | Merge remote-tracking branch 'common/android-4.4-p' into ↵Michael Bestas2021-12-27
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lineage-18.1-caf-msm8998 * common/android-4.4-p: Linux 4.4.296 xen/netback: don't queue unlimited number of packages xen/console: harden hvc_xen against event channel storms xen/netfront: harden netfront against event channel storms xen/blkfront: harden blkfront against event channel storms Input: touchscreen - avoid bitwise vs logical OR warning ARM: 8805/2: remove unneeded naked function usage net: lan78xx: Avoid unnecessary self assignment net: systemport: Add global locking for descriptor lifecycle timekeeping: Really make sure wall_to_monotonic isn't positive USB: serial: option: add Telit FN990 compositions PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error USB: gadget: bRequestType is a bitfield, not a enum igbvf: fix double free in `igbvf_probe` soc/tegra: fuse: Fix bitwise vs. logical OR warning nfsd: fix use-after-free due to delegation race dm btree remove: fix use after free in rebalance_children() recordmcount.pl: look for jgnop instruction as well as bcrl on s390 mac80211: send ADDBA requests using the tid/queue of the aggregation session hwmon: (dell-smm) Fix warning on /proc/i8k creation error net: netlink: af_netlink: Prevent empty skb by adding a check on len. i2c: rk3x: Handle a spurious start completion interrupt flag parisc/agp: Annotate parisc agp init functions with __init nfc: fix segfault in nfc_genl_dump_devices_done FROMGIT: USB: gadget: bRequestType is a bitfield, not a enum Linux 4.4.295 irqchip: nvic: Fix offset for Interrupt Priority Offsets irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove iio: itg3200: Call iio_trigger_notify_done() on error iio: ltr501: Don't return error code in trigger handler iio: mma8452: Fix trigger reference couting iio: stk3310: Don't return error code in interrupt handler usb: core: config: fix validation of wMaxPacketValue entries USB: gadget: zero allocate endpoint 0 buffers USB: gadget: detect too-big endpoint 0 requests net/qla3xxx: fix an error code in ql_adapter_up() net, neigh: clear whole pneigh_entry at alloc time net: fec: only clear interrupt of handling queue in fec_enet_rx_queue() net: altera: set a couple error code in probe() net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2) tracefs: Set all files to the same group ownership as the mount option signalfd: use wake_up_pollfree() binder: use wake_up_pollfree() wait: add wake_up_pollfree() libata: add horkage for ASMedia 1092 can: pch_can: pch_can_rx_normal: fix use after free tracefs: Have new files inherit the ownership of their parent ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*() ALSA: pcm: oss: Limit the period size to 16MB ALSA: pcm: oss: Fix negative period/buffer sizes ALSA: ctl: Fix copy of updated id with element read/write mm: bdi: initialize bdi_min_ratio when bdi is unregistered nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done can: sja1000: fix use after free in ems_pcmcia_add_card() HID: check for valid USB device for many HID drivers HID: wacom: fix problems when device is not a valid USB device HID: add USB_HID dependancy on some USB HID drivers HID: add USB_HID dependancy to hid-chicony HID: add USB_HID dependancy to hid-prodikeys HID: add hid_is_usb() function to make it simpler for USB detection HID: introduce hid_is_using_ll_driver UPSTREAM: USB: gadget: zero allocate endpoint 0 buffers UPSTREAM: USB: gadget: detect too-big endpoint 0 requests Linux 4.4.294 serial: pl011: Add ACPI SBSA UART match id tty: serial: msm_serial: Deactivate RX DMA for polling support vgacon: Propagate console boot parameters before calling `vc_resize' parisc: Fix "make install" on newer debian releases siphash: use _unaligned version by default net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings() natsemi: xtensa: fix section mismatch warnings fget: check that the fd still exists after getting a ref to it fs: add fget_many() and fput_many() sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl kprobes: Limit max data_size of the kretprobe instances net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock() net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound scsi: iscsi: Unblock session then wake up error handler s390/setup: avoid using memblock_enforce_memory_limit platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep net: return correct error code hugetlb: take PMD sharing into account when flushing tlb/caches tty: hvc: replace BUG_ON() with negative return value xen/netfront: don't trust the backend response data blindly xen/netfront: disentangle tx_skb_freelist xen/netfront: don't read data from request on the ring page xen/netfront: read response from backend only once xen/blkfront: don't trust the backend response data blindly xen/blkfront: don't take local copy of a request from the ring page xen/blkfront: read response from backend only once xen: sync include/xen/interface/io/ring.h with Xen's newest version shm: extend forced shm destroy to support objects from several IPC nses fuse: release pipe buf after last use fuse: fix page stealing NFC: add NCI_UNREG flag to eliminate the race proc/vmcore: fix clearing user buffer by properly using clear_user() hugetlbfs: flush TLBs correctly after huge_pmd_unshare tracing: Check pid filtering when creating events tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows scsi: mpt3sas: Fix kernel panic during drive powercycle test ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE NFSv42: Don't fail clone() unless the OP_CLONE operation failed net: ieee802154: handle iftypes as u32 ASoC: topology: Add missing rwsem around snd_ctl_remove() calls ARM: dts: BCM5301X: Add interrupt properties to GPIO node xen: detect uninitialized xenbus in xenbus_init xen: don't continue xenstore initialization in case of errors staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() ALSA: ctxfi: Fix out-of-range access binder: fix test regression due to sender_euid change usb: hub: Fix locking issues with address0_mutex usb: hub: Fix usb enumeration issue due to address0 race USB: serial: option: add Fibocom FM101-GL variants USB: serial: option: add Telit LE910S1 0x9200 composition staging: ion: Prevent incorrect reference counting behavour Change-Id: Iadf9f213915d2a02b27ceb3b2144eac827ade329
| * hugetlbfs: flush TLBs correctly after huge_pmd_unshareNadav Amit2021-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit a4a118f2eead1d6c49e00765de89878288d4b890 upstream. When __unmap_hugepage_range() calls to huge_pmd_unshare() succeed, a TLB flush is missing. This TLB flush must be performed before releasing the i_mmap_rwsem, in order to prevent an unshared PMDs page from being released and reused before the TLB flush took place. Arguably, a comprehensive solution would use mmu_gather interface to batch the TLB flushes and the PMDs page release, however it is not an easy solution: (1) try_to_unmap_one() and try_to_migrate_one() also call huge_pmd_unshare() and they cannot use the mmu_gather interface; and (2) deferring the release of the page reference for the PMDs page until after i_mmap_rwsem is dropeed can confuse huge_pmd_unshare() into thinking PMDs are shared when they are not. Fix __unmap_hugepage_range() by adding the missing TLB flush, and forcing a flush when unshare is successful. Fixes: 24669e58477e ("hugetlb: use mmu_gather instead of a temporary linked list for accumulating pages)" # 3.6 Signed-off-by: Nadav Amit <namit@vmware.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge android-4.4.187 (8eb3d65) into msm-4.4Srinivasarao P2019-08-07
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * refs/heads/tmp-8eb3d65 Linux 4.4.187 ceph: hold i_ceph_lock when removing caps for freeing inode drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl sched/fair: Don't free p->numa_faults with concurrent readers Bluetooth: hci_uart: check for missing tty operations media: radio-raremono: change devm_k*alloc to k*alloc media: cpia2_usb: first wake up, then free in disconnect ISDN: hfcsusb: checking idx of ep configuration tcp: reset sk_send_head in tcp_write_queue_purge ipv6: check sk sk_type and protocol early in ip_mroute_set/getsockopt mm, vmstat: make quiet_vmstat lighter vmstat: Remove BUG_ON from vmstat_update access: avoid the RCU grace period for the temporary subjective credentials powerpc/tm: Fix oops on sigreturn on systems without TM ALSA: hda - Add a conexant codec entry to let mute led work ALSA: line6: Fix wrong altsetting for LINE6_PODHD500_1 hpet: Fix division by zero in hpet_time_div() x86/speculation/mds: Apply more accurate check on hypervisor platform x86/sysfb_efi: Add quirks for some devices with swapped width and height usb: pci-quirks: Correct AMD PLL quirk detection usb: wusbcore: fix unbalanced get/put cluster_id locking/lockdep: Hide unused 'class' variable locking/lockdep: Fix lock used or unused stats error mm/mmu_notifier: use hlist_add_head_rcu() 9p: pass the correct prototype to read_cache_page mm/kmemleak.c: fix check for softirq context sh: prevent warnings when using iounmap powerpc/eeh: Handle hugepages in ioremap space mailbox: handle failed named mailbox channel request f2fs: avoid out-of-range memory access perf test mmap-thread-lookup: Initialize variable to suppress memory sanitizer warning kallsyms: exclude kasan local symbols on s390 serial: sh-sci: Fix TX DMA buffer flushing and workqueue races powerpc/4xx/uic: clear pending interrupt after irq type/pol change um: Silence lockdep complaint about mmap_sem mfd: arizona: Fix undefined behavior mfd: core: Set fwnode for created devices recordmcount: Fix spurious mcount entries on powerpc iio: iio-utils: Fix possible incorrect mask calculation PCI: sysfs: Ignore lockdep for remove attribute powerpc/pci/of: Fix OF flags parsing for 64bit BARs usb: gadget: Zero ffs_io_data phy: renesas: rcar-gen2: Fix memory leak at error paths drm/virtio: Add memory barriers for capset cache. tty: serial: msm_serial: avoid system lockup condition tty/serial: digicolor: Fix digicolor-usart already registered warning memstick: Fix error cleanup path of memstick_init tty: serial: cpm_uart - fix init when SMC is relocated pinctrl: rockchip: fix leaked of_node references tty: max310x: Fix invalid baudrate divisors calculator usb: core: hub: Disable hub-initiated U1/U2 drm/panel: simple: Fix panel_simple_dsi_probe nfsd: Fix overflow causing non-working mounts on 1 TB machines nfsd: fix performance-limiting session calculation nfsd: give out fewer session slots as limit approaches nfsd: increase DRC cache limit NFSv4: Fix open create exclusive when the server reboots elevator: fix truncation of icq_cache_name net: bridge: stp: don't cache eth dest pointer before skb pull net: bridge: mcast: fix stale ipv6 hdr pointer when handling v6 query net: bridge: mcast: fix stale nsrcs pointer in igmp3/mld2 report handling bonding: validate ip header before check IPPROTO_IGMP tcp: Reset bytes_acked and bytes_received when disconnecting netrom: hold sock when setting skb->destructor netrom: fix a memory leak in nr_rx_frame() sky2: Disable MSI on ASUS P6T nfc: fix potential illegal memory access net: neigh: fix multiple neigh timer scheduling net: bcmgenet: use promisc for unsupported filters ipv4: don't set IPv6 only flags to IPv4 addresses caif-hsi: fix possible deadlock in cfhsi_exit_module() bnx2x: Prevent load reordering in tx completion processing dm bufio: fix deadlock with loop device usb: Handle USB3 remote wakeup for LPM enabled devices correctly Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug intel_th: msu: Fix single mode with disabled IOMMU eCryptfs: fix a couple type promotion bugs powerpc/watchpoint: Restore NV GPRs while returning from exception powerpc/32s: fix suspend/resume when IBATs 4-7 are used parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1 gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM coda: pass the host file in vma->vm_file on mmap floppy: fix out-of-bounds read in copy_buffer floppy: fix invalid pointer dereference in drive_name floppy: fix out-of-bounds read in next_valid_format floppy: fix div-by-zero in setup_format_params take floppy compat ioctls to sodding floppy.c PCI: Do not poll for PME if the device is in D3cold 9p/virtio: Add cleanup path in p9_virtio_init padata: use smp_mb in padata_reorder to avoid orphaned padata jobs drm/nouveau/i2c: Enable i2c pads & busses during preinit KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed media: coda: Remove unbalanced and unneeded mutex unlock media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom() ALSA: seq: Break too long mutex context in the write loop lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE NFSv4: Handle the special Linux file open access mode tracing/snapshot: Resize spare buffer if size changed regulator: s2mps11: Fix buck7 and buck8 wrong voltages Input: gtco - bounds check collection indent level crypto: arm64/sha2-ce - correct digest for empty data in finup crypto: arm64/sha1-ce - correct digest for empty data in finup crypto: ghash - fix unaligned memory access in ghash_setkey() Bluetooth: validate BLE connection interval updates Bluetooth: Check state in l2cap_disconnect_rsp Bluetooth: 6lowpan: search for destination address in all peers Bluetooth: hci_bcsp: Fix memory leak in rx_skb bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush() EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec ixgbe: Check DDM existence in transceiver before access rslib: Fix handling of of caller provided syndrome rslib: Fix decoding of shortened codes ath10k: fix PCIE device wake up failed mt7601u: fix possible memory leak when the device is disconnected x86/build: Add 'set -e' to mkcapflags.sh to delete broken capflags.c mt7601u: do not schedule rx_tasklet when the device has been disconnected media: coda: increment sequence offset for the last returned frame media: coda: fix mpeg2 sequence number handling acpi/arm64: ignore 5.1 FADTs that are reported as 5.0 timer_list: Guard procfs specific code ntp: Limit TAI-UTC offset media: i2c: fix warning same module names EDAC/sysfs: Fix memory leak when creating a csrow object vhost_net: disable zerocopy by default perf evsel: Make perf_evsel__name() accept a NULL argument xfrm: fix sa selector validation rcu: Force inlining of rcu_read_lock() bpf: silence warning messages in core regmap: fix bulk writes on paged registers gpio: omap: ensure irq is enabled before wakeup gpio: omap: fix lack of irqstatus_raw0 for OMAP4 perf test 6: Fix missing kvm module load for s390 s390/qdio: handle PENDING state for QEBSM devices net: axienet: Fix race condition causing TX hang net: fec: Do not use netdev messages too early cpupower : frequency-set -r option misses the last cpu in related cpu list media: wl128x: Fix some error handling in fm_v4l2_init_video_device() locking/lockdep: Fix merging of hlocks with non-zero references tua6100: Avoid build warnings. net: phy: Check against net_device being NULL media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails. xfrm: Fix xfrm sel prefix length validation af_key: fix leaks in key_pol_get_resp and dump_sp. signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig net: stmmac: dwmac1000: Clear unused address entries media: vpss: fix a potential NULL pointer dereference media: marvell-ccic: fix DMA s/g desc number calculation crypto: talitos - fix skcipher failure due to wrong output IV media: dvb: usb: fix use after free in dvb_usb_device_exit batman-adv: fix for leaked TVLV handler. ath: DFS JP domain W56 fixed pulse type 3 RADAR detection ath6kl: add some bounds checking ath9k: Check for errors when reading SREV register ath10k: Do not send probe response template for mesh dmaengine: imx-sdma: fix use-after-free on probe error path MIPS: fix build on non-linux hosts MIPS: ath79: fix ar933x uart parity mode f2fs: use EINVAL for superblock with invalid magic f2fs: fix to read source block before invalidating it f2fs: remove redundant check from f2fs_setflags_common() f2fs: use generic checking and prep function for FS_IOC_SETFLAGS ANDROID: overlayfs: Fix a regression in commit b24be4acd ANDROID: xfrm: remove in_compat_syscall() checks ANDROID: enable CONFIG_RTC_DRV_TEST on cuttlefish BACKPORT: binder: Set end of SG buffer area properly. f2fs: improve print log in f2fs_sanity_check_ckpt() f2fs: avoid out-of-range memory access f2fs: fix to avoid long latency during umount f2fs: allow all the users to pin a file f2fs: support swap file w/ DIO f2fs: allocate blocks for pinned file f2fs: fix is_idle() check for discard type f2fs: add a rw_sem to cover quota flag changes f2fs: set SBI_NEED_FSCK for xattr corruption case f2fs: use generic EFSBADCRC/EFSCORRUPTED f2fs: Use DIV_ROUND_UP() instead of open-coding f2fs: print kernel message if filesystem is inconsistent f2fs: introduce f2fs_<level> macros to wrap f2fs_printk() f2fs: avoid get_valid_blocks() for cleanup f2fs: ioctl for removing a range from F2FS f2fs: only set project inherit bit for directory f2fs: separate f2fs i_flags from fs_flags and ext4 i_flags f2fs: Add option to limit required GC for checkpoint=disable f2fs: Fix accounting for unusable blocks f2fs: Fix root reserved on remount f2fs: Lower threshold for disable_cp_again f2fs: fix sparse warning f2fs: fix f2fs_show_options to show nodiscard mount option f2fs: add error prints for debugging mount failure f2fs: fix to do sanity check on segment bitmap of LFS curseg f2fs: add missing sysfs entries in documentation f2fs: fix to avoid deadloop if data_flush is on f2fs: always assume that the device is idle under gc_urgent f2fs: add bio cache for IPU f2fs: allow ssr block allocation during checkpoint=disable period f2fs: fix to check layout on last valid checkpoint park Conflicts: drivers/net/wireless/ath/ath10k/hw.c fs/ecryptfs/crypto.c mm/vmstat.c Change-Id: Ic268e845f4992a9dbdf5c985cfe9359a56a5c72e Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
| * um: Silence lockdep complaint about mmap_semJohannes Berg2019-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 80bf6ceaf9310b3f61934c69b382d4912deee049 ] When we get into activate_mm(), lockdep complains that we're doing something strange: WARNING: possible circular locking dependency detected 5.1.0-10252-gb00152307319-dirty #121 Not tainted ------------------------------------------------------ inside.sh/366 is trying to acquire lock: (____ptrval____) (&(&p->alloc_lock)->rlock){+.+.}, at: flush_old_exec+0x703/0x8d7 but task is already holding lock: (____ptrval____) (&mm->mmap_sem){++++}, at: flush_old_exec+0x6c5/0x8d7 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&mm->mmap_sem){++++}: [...] __lock_acquire+0x12ab/0x139f lock_acquire+0x155/0x18e down_write+0x3f/0x98 flush_old_exec+0x748/0x8d7 load_elf_binary+0x2ca/0xddb [...] -> #0 (&(&p->alloc_lock)->rlock){+.+.}: [...] __lock_acquire+0x12ab/0x139f lock_acquire+0x155/0x18e _raw_spin_lock+0x30/0x83 flush_old_exec+0x703/0x8d7 load_elf_binary+0x2ca/0xddb [...] other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_sem); lock(&(&p->alloc_lock)->rlock); lock(&mm->mmap_sem); lock(&(&p->alloc_lock)->rlock); *** DEADLOCK *** 2 locks held by inside.sh/366: #0: (____ptrval____) (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file+0x12d/0x869 #1: (____ptrval____) (&mm->mmap_sem){++++}, at: flush_old_exec+0x6c5/0x8d7 stack backtrace: CPU: 0 PID: 366 Comm: inside.sh Not tainted 5.1.0-10252-gb00152307319-dirty #121 Stack: [...] Call Trace: [<600420de>] show_stack+0x13b/0x155 [<6048906b>] dump_stack+0x2a/0x2c [<6009ae64>] print_circular_bug+0x332/0x343 [<6009c5c6>] check_prev_add+0x669/0xdad [<600a06b4>] __lock_acquire+0x12ab/0x139f [<6009f3d0>] lock_acquire+0x155/0x18e [<604a07e0>] _raw_spin_lock+0x30/0x83 [<60151e6a>] flush_old_exec+0x703/0x8d7 [<601a8eb8>] load_elf_binary+0x2ca/0xddb [...] I think it's because in exec_mmap() we have down_read(&old_mm->mmap_sem); ... task_lock(tsk); ... activate_mm(active_mm, mm); (which does down_write(&mm->mmap_sem)) I'm not really sure why lockdep throws in the whole knowledge about the task lock, but it seems that old_mm and mm shouldn't ever be the same (and it doesn't deadlock) so tell lockdep that they're different. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Sasha Levin <sashal@kernel.org>
* | Merge android-4.4.175 (08d5867) into msm-4.4Srinivasarao P2019-02-22
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * refs/heads/tmp-08d5867 Linux 4.4.175 uapi/if_ether.h: move __UAPI_DEF_ETHHDR libc define pinctrl: msm: fix gpio-hog related boot issues usb: dwc2: Remove unnecessary kfree kaweth: use skb_cow_head() to deal with cloned skbs ch9200: use skb_cow_head() to deal with cloned skbs smsc95xx: Use skb_cow_head to deal with cloned skbs dm thin: fix bug where bio that overwrites thin block ignores FUA x86/a.out: Clear the dump structure initially signal: Restore the stop PTRACE_EVENT_EXIT x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls tracing/uprobes: Fix output for multiple string arguments alpha: Fix Eiger NR_IRQS to 128 alpha: fix page fault handling for r16-r18 targets Input: elantech - enable 3rd button support on Fujitsu CELSIUS H780 Input: bma150 - register input device after setting private data ALSA: usb-audio: Fix implicit fb endpoint setup by quirk ALSA: hda - Add quirk for HP EliteBook 840 G5 perf/core: Fix impossible ring-buffer sizes warning Input: elan_i2c - add ACPI ID for touchpad in Lenovo V330-15ISK Revert "Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G" Documentation/network: reword kernel version reference cifs: Limit memory used by lock request calls to a page gpio: pl061: handle failed allocations ARM: dts: kirkwood: Fix polarity of GPIO fan lines ARM: dts: da850-evm: Correct the sound card name uapi/if_ether.h: prevent redefinition of struct ethhdr Revert "exec: load_script: don't blindly truncate shebang string" batman-adv: Force mac header to start of data on xmit batman-adv: Avoid WARN on net_device without parent in netns xfrm: refine validation of template and selector families libceph: avoid KEEPALIVE_PENDING races in ceph_con_keepalive() Revert "cifs: In Kconfig CONFIG_CIFS_POSIX needs depends on legacy (insecure cifs)" NFC: nxp-nci: Include unaligned.h instead of access_ok.h HID: debug: fix the ring buffer implementation drm/vmwgfx: Return error code from vmw_execbuf_copy_fence_user drm/vmwgfx: Fix setting of dma masks drm/modes: Prevent division by zero htotal mac80211: ensure that mgmt tx skbs have tailroom for encryption ARM: iop32x/n2100: fix PCI IRQ mapping MIPS: VDSO: Include $(ccflags-vdso) in o32,n32 .lds builds MIPS: OCTEON: don't set octeon_dma_bar_type if PCI is disabled mips: cm: reprime error cause debugfs: fix debugfs_rename parameter checking misc: vexpress: Off by one in vexpress_syscfg_exec() signal: Better detection of synchronous signals signal: Always notice exiting tasks mtd: rawnand: gpmi: fix MX28 bus master lockup problem perf tests evsel-tp-sched: Fix bitwise operator perf/core: Don't WARN() for impossible ring-buffer sizes x86/MCE: Initialize mce.bank in the case of a fatal error in mce_no_way_out() perf/x86/intel/uncore: Add Node ID mask KVM: nVMX: unconditionally cancel preemption timer in free_nested (CVE-2019-7221) KVM: x86: work around leak of uninitialized stack contents (CVE-2019-7222) usb: gadget: udc: net2272: Fix bitwise and boolean operations usb: phy: am335x: fix race condition in _probe dmaengine: imx-dma: fix wrong callback invoke fuse: handle zero sized retrieve correctly fuse: decrement NR_WRITEBACK_TEMP on the right page fuse: call pipe_buf_release() under pipe lock ALSA: hda - Serialize codec registrations ALSA: compress: Fix stop handling on compressed capture streams net: dsa: slave: Don't propagate flag changes on down slave interfaces net: systemport: Fix WoL with password after deep sleep skge: potential memory corruption in skge_get_regs() net: dp83640: expire old TX-skb enic: fix checksum validation for IPv6 dccp: fool proof ccid_hc_[rt]x_parse_options() string: drop __must_check from strscpy() and restore strscpy() usages in cgroup tipc: use destination length for copy string test_hexdump: use memcpy instead of strncpy thermal: hwmon: inline helpers when CONFIG_THERMAL_HWMON is not set exec: load_script: don't blindly truncate shebang string fs/epoll: drop ovflist branch prediction kernel/hung_task.c: break RCU locks based on jiffies HID: lenovo: Add checks to fix of_led_classdev_register block/swim3: Fix -EBUSY error when re-opening device after unmount gdrom: fix a memory leak bug isdn: hisax: hfc_pci: Fix a possible concurrency use-after-free bug in HFCPCI_l1hw() ocfs2: don't clear bh uptodate for block read scripts/decode_stacktrace: only strip base path when a prefix of the path niu: fix missing checks of niu_pci_eeprom_read um: Avoid marking pages with "changed protection" cifs: check ntwrk_buf_start for NULL before dereferencing it crypto: ux500 - Use proper enum in hash_set_dma_transfer crypto: ux500 - Use proper enum in cryp_set_dma_transfer seq_buf: Make seq_buf_puts() null-terminate the buffer hwmon: (lm80) fix a missing check of bus read in lm80 probe hwmon: (lm80) fix a missing check of the status of SMBus read NFS: nfs_compare_mount_options always compare auth flavors. KVM: x86: svm: report MSR_IA32_MCG_EXT_CTL as unsupported fbdev: fbcon: Fix unregister crash when more than one framebuffer igb: Fix an issue that PME is not enabled during runtime suspend fbdev: fbmem: behave better with small rotated displays and many CPUs video: clps711x-fb: release disp device node in probe() drbd: Avoid Clang warning about pointless switch statment drbd: skip spurious timeout (ping-timeo) when failing promote drbd: disconnect, if the wrong UUIDs are attached on a connected peer drbd: narrow rcu_read_lock in drbd_sync_handshake cw1200: Fix concurrency use-after-free bugs in cw1200_hw_scan() Bluetooth: Fix unnecessary error message for HCI request completion xfrm6_tunnel: Fix spi check in __xfrm6_tunnel_alloc_spi mac80211: fix radiotap vendor presence bitmap handling powerpc/uaccess: fix warning/error with access_ok() arm64: KVM: Skip MMIO insn after emulation tty: serial: samsung: Properly set flags in autoCTS mode memstick: Prevent memstick host from getting runtime suspended during card detection ASoC: fsl: Fix SND_SOC_EUKREA_TLV320 build error on i.MX8M ARM: pxa: avoid section mismatch warning udf: Fix BUG on corrupted inode i2c-axxia: check for error conditions first cpuidle: big.LITTLE: fix refcount leak clk: imx6sl: ensure MMDC CH0 handshake is bypassed sata_rcar: fix deferred probing iommu/arm-smmu-v3: Use explicit mb() when moving cons pointer mips: bpf: fix encoding bug for mm_srlv32_op ARM: dts: Fix OMAP4430 SDP Ethernet startup timekeeping: Use proper seqcount initializer usb: hub: delay hub autosuspend if USB3 port is still link training smack: fix access permissions for keyring media: DaVinci-VPBE: fix error handling in vpbe_initialize() x86/fpu: Add might_fault() to user_insn() ARM: dts: mmp2: fix TWSI2 arm64: ftrace: don't adjust the LR value nfsd4: fix crash on writing v4_end_grace before nfsd startup sunvdc: Do not spin in an infinite loop when vio_ldc_send() returns EAGAIN f2fs: fix wrong return value of f2fs_acl_create f2fs: move dir data flush to write checkpoint process soc/tegra: Don't leak device tree node reference perf tools: Add Hygon Dhyana support modpost: validate symbol names also in find_elf_symbol ARM: OMAP2+: hwmod: Fix some section annotations staging: iio: ad7780: update voltage on read staging:iio:ad2s90: Make probe handle spi_setup failure ptp: check gettime64 return code in PTP_SYS_OFFSET ioctl serial: fsl_lpuart: clear parity enable bit when disable parity powerpc/pseries: add of_node_put() in dlpar_detach_node() x86/PCI: Fix Broadcom CNB20LE unintended sign extension (redux) dlm: Don't swamp the CPU with callbacks queued during recovery ARM: 8808/1: kexec:offline panic_smp_self_stop CPU scsi: lpfc: Correct LCB RJT handling ASoC: Intel: mrfld: fix uninitialized variable access staging: iio: adc: ad7280a: handle error from __ad7280_read32() drm/bufs: Fix Spectre v1 vulnerability BACKPORT: userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas ANDROID: cuttlefish_defconfig: Enable DEBUG_SET_MODULE_RONX ANDROID: Move from clang r346389b to r349610. UPSTREAM: virt_wifi: fix error return code in virt_wifi_newlink() ion: Disable ION_HEAP_TYPE_SYSTEM_CONTIG Change-Id: I8456a2f1d229a2d454295d660f749a2b436c6440 Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
| * um: Avoid marking pages with "changed protection"Anton Ivanov2019-02-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 8892d8545f2d0342b9c550defbfb165db237044b ] Changing protection is a very high cost operation in UML because in addition to an extra syscall it also interrupts mmap merge sequences generated by the tlb. While the condition is not particularly common it is worth avoiding. Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Sasha Levin <sashal@kernel.org>
* | Merge branch 'v4.4-16.09-android-tmp' into lsk-v4.4-16.09-androidRunmin Wang2016-12-16
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Disable runtime PM on probe failure cpufreq: Fix GOV_LIMITS handling for the userspace governor metag: Fix atomic_*_return inline asm constraints scsi: fix upper bounds check of sense key in scsi_sense_key_string() ALSA: timer: fix NULL pointer dereference on memory allocation failure ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE ALSA: timer: fix NULL pointer dereference in read()/ioctl() race ALSA: hda - Enable subwoofer on Dell Inspiron 7559 ALSA: hda - Add headset mic quirk for Dell Inspiron 5468 ALSA: rawmidi: Fix possible deadlock with virmidi registration ALSA: fireworks: accessing to user space outside spinlock ALSA: firewire-tascam: accessing to user space outside spinlock ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114 crypto: caam - fix IV loading for authenc (giv)decryption uprobes: Fix the memcg accounting x86/apic: Do not init irq remapping if ioapic is disabled vhost/scsi: fix reuse of &vq->iov[out] in response bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two. ubifs: Fix assertion in layout_in_gaps() ovl: fix workdir creation ovl: listxattr: use strnlen() ovl: remove posix_acl_default from workdir ovl: don't copy up opaqueness wrappers for ->i_mutex access lustre: remove unused declaration timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING timekeeping: Cap array access in timekeeping_debug xfs: fix superblock inprogress check ASoC: atmel_ssc_dai: Don't unconditionally reset SSC on stream startup drm/msm: fix use of copy_from_user() while holding spinlock drm: Reject page_flip for !DRIVER_MODESET drm/radeon: fix radeon_move_blit on 32bit systems s390/sclp_ctl: fix potential information leak with /dev/sclp rds: fix an infoleak in rds_inc_info_copy powerpc/tm: Avoid SLB faults in treclaim/trecheckpoint when RI=0 nvme: Call pci_disable_device on the error path. cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork block: make sure a big bio is split into at most 256 bvecs block: Fix race triggered by blk_set_queue_dying() ext4: avoid modifying checksum fields directly during checksum verification ext4: avoid deadlock when expanding inode size ext4: properly align shifted xattrs when expanding inodes ext4: fix xattr shifting when expanding inodes part 2 ext4: fix xattr shifting when expanding inodes ext4: validate that metadata blocks do not overlap superblock net: Use ns_capable_noaudit() when determining net sysctl permissions kernel: Add noaudit variant of ns_capable() KEYS: Fix ASN.1 indefinite length object parsing drivers:hv: Lock access to hyperv_mmio resource tree cxlflash: Move to exponential back-off when cmd_room is not available netfilter: x_tables: check for size overflow drm/amdgpu/cz: enable/disable vce dpm even if vce pg is disabled cred: Reject inodes with invalid ids in set_create_file_as() fs: Check for invalid i_uid in may_follow_link() IB/IPoIB: Do not set skb truesize since using one linearskb udp: properly support MSG_PEEK with truncated buffers crypto: nx-842 - Mask XERS0 bit in return value cxlflash: Fix to avoid virtual LUN failover failure cxlflash: Fix to escalate LINK_RESET also on port 1 tipc: fix nl compat regression for link statistics tipc: fix an infoleak in tipc_nl_compat_link_dump netfilter: x_tables: check for size overflow Bluetooth: Add support for Intel Bluetooth device 8265 [8087:0a2b] drm/i915: Check VBT for port presence in addition to the strap on VLV/CHV drm/i915: Only ignore eDP ports that are connected Input: xpad - move pending clear to the correct location net: thunderx: Fix link status reporting x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances crypto: vmx - IV size failing on skcipher API tda10071: Fix dependency to REGMAP_I2C crypto: vmx - Fix ABI detection crypto: vmx - comply with ABIs that specify vrsave as reserved. HID: core: prevent out-of-bound readings lpfc: Fix DMA faults observed upon plugging loopback connector block: fix blk_rq_get_max_sectors for driver private requests irqchip/gicv3-its: numa: Enable workaround for Cavium thunderx erratum 23144 clocksource: Allow unregistering the watchdog btrfs: Continue write in case of can_not_nocow blk-mq: End unstarted requests on dying queue cxlflash: Fix to resolve dead-lock during EEH recovery drm/radeon/mst: fix regression in lane/link handling. ecryptfs: fix handling of directory opening ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps drm: Balance error path for GEM handle allocation ntp: Fix ADJ_SETOFFSET being used w/ ADJ_NANO time: Verify time values in adjtimex ADJ_SETOFFSET to avoid overflow Input: xpad - correctly handle concurrent LED and FF requests net: thunderx: Fix receive packet stats net: thunderx: Fix for multiqset not configured upon interface toggle perf/x86/cqm: Fix CQM memory leak and notifier leak perf/x86/cqm: Fix CQM handling of grouping events into a cache_group s390/crypto: provide correct file mode at device register. proc: revert /proc/<pid>/maps [stack:TID] annotation intel_idle: Support for Intel Xeon Phi Processor x200 Product Family cxlflash: Fix to avoid unnecessary scan with internal LUNs Drivers: hv: vmbus: don't manipulate with clocksources on crash Drivers: hv: vmbus: avoid scheduling in interrupt context in vmbus_initiate_unload() Drivers: hv: vmbus: avoid infinite loop in init_vp_index() arcmsr: fixes not release allocated resource arcmsr: fixed getting wrong configuration data s390/pci_dma: fix DMA table corruption with > 4 TB main memory net/mlx5e: Don't modify CQ before it was created net/mlx5e: Don't try to modify CQ moderation if it is not supported mmc: sdhci: Do not BUG on invalid vdd UVC: Add support for R200 depth camera sched/numa: Fix use-after-free bug in the task_numa_compare ALSA: hda - add codec support for Kabylake display audio codec drm/i915: Fix hpd live status bits for g4x tipc: fix nullptr crash during subscription cancel arm64: Add workaround for Cavium erratum 27456 net: thunderx: Fix for Qset error due to CQ full drm/radeon: fix dp link rate selection (v2) drm/amdgpu: fix dp link rate selection (v2) qla2xxx: Use ATIO type to send correct tmr response mmc: sdhci: 64-bit DMA actually has 4-byte alignment drm/atomic: Do not unset crtc when an encoder is stolen drm/i915/skl: Add missing SKL ids drm/i915/bxt: update list of PCIIDs hrtimer: Catch illegal clockids i40e/i40evf: Fix RSS rx-flow-hash configuration through ethtool mpt3sas: Fix for Asynchronous completion of timedout IO and task abort of timedout IO. mpt3sas: A correction in unmap_resources net: cavium: liquidio: fix check for in progress flag arm64: KVM: Configure TCR_EL2.PS at runtime irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor pwm: lpc32xx: fix and simplify duty cycle and period calculations pwm: lpc32xx: correct number of PWM channels from 2 to 1 pwm: fsl-ftm: Fix clock enable/disable when using PM megaraid_sas: Add an i/o barrier megaraid_sas: Fix SMAP issue megaraid_sas: Do not allow PCI access during OCR s390/cio: update measurement characteristics s390/cio: ensure consistent measurement state s390/cio: fix measurement characteristics memleak qeth: initialize net_device with carrier off lpfc: Fix external loopback failure. lpfc: Fix mbox reuse in PLOGI completion lpfc: Fix RDP Speed reporting. lpfc: Fix crash in fcp command completion path. lpfc: Fix driver crash when module parameter lpfc_fcp_io_channel set to 16 lpfc: Fix RegLogin failed error seen on Lancer FC during port bounce lpfc: Fix the FLOGI discovery logic to comply with T11 standards lpfc: Fix FCF Infinite loop in lpfc_sli4_fcf_rr_next_index_get. cxl: Enable PCI device ID for future IBM CXL adapter cxl: fix build for GCC 4.6.x cxlflash: Enable device id for future IBM CXL adapter cxlflash: Resolve oops in wait_port_offline cxlflash: Fix to resolve cmd leak after host reset cxl: Fix DSI misses when the context owning task exits cxl: Fix possible idr warning when contexts are released Drivers: hv: vmbus: fix rescind-offer handling for device without a driver Drivers: hv: vmbus: serialize process_chn_event() and vmbus_close_internal() Drivers: hv: vss: run only on supported host versions drivers/hv: cleanup synic msrs if vmbus connect failed Drivers: hv: util: catch allocation errors tools: hv: report ENOSPC errors in hv_fcopy_daemon Drivers: hv: utils: run polling callback always in interrupt context Drivers: hv: util: Increase the timeout for util services lightnvm: fix missing grown bad block type lightnvm: fix locking and mempool in rrpc_lun_gc lightnvm: unlock rq and free ppa_list on submission fail lightnvm: add check after mempool allocation lightnvm: fix incorrect nr_free_blocks stat lightnvm: fix bio submission issue cxlflash: a couple off by one bugs fm10k: Cleanup exception handling for mailbox interrupt fm10k: Cleanup MSI-X interrupts in case of failure fm10k: reinitialize queuing scheme after calling init_hw fm10k: always check init_hw for errors fm10k: reset max_queues on init_hw_vf failure fm10k: Fix handling of NAPI budget when multiple queues are enabled per vector fm10k: Correct MTU for jumbo frames fm10k: do not assume VF always has 1 queue clk: xgene: Fix divider with non-zero shift value e1000e: fix division by zero on jumbo MTUs e1000: fix data race between tx_ring->next_to_clean ixgbe: Fix handling of NAPI budget when multiple queues are enabled per vector igb: fix NULL derefs due to skipped SR-IOV enabling igb: use the correct i210 register for EEMNGCTL igb: don't unmap NULL hw_addr i40e: Fix Rx hash reported to the stack by our driver i40e: clean whole mac filter list i40evf: check rings before freeing resources i40e: don't add zero MAC filter i40e: properly delete VF MAC filters i40e: Fix memory leaks, sideband filter programming i40e: fix: do not sleep in netdev_ops i40e/i40evf: Fix RS bit update in Tx path and disable force WB workaround i40evf: handle many MAC filters correctly i40e: Workaround fix for mss < 256 issue UPSTREAM: audit: fix a double fetch in audit_log_single_execve_arg() UPSTREAM: ARM: 8494/1: mm: Enable PXN when running non-LPAE kernel on LPAE processor FIXUP: sched/tune: update accouting before CPU capacity FIXUP: sched/tune: add fixes missing from a previous patch arm: Fix #if/#ifdef typo in topology.c arm: Fix build error "conflicting types for 'scale_cpu_capacity'" sched/walt: use do_div instead of division operator DEBUG: cpufreq: fix cpu_capacity tracing build for non-smp systems sched/walt: include missing header for arm_timer_read_counter() cpufreq: Kconfig: Fixup incorrect selection by CPU_FREQ_DEFAULT_GOV_SCHED sched/fair: Avoid redundant idle_cpu() call in update_sg_lb_stats() FIXUP: sched: scheduler-driven cpu frequency selection sched/rt: Add Kconfig option to enable panicking for RT throttling sched/rt: print RT tasks when RT throttling is activated UPSTREAM: sched: Fix a race between __kthread_bind() and sched_setaffinity() sched/fair: Favor higher cpus only for boosted tasks vmstat: make vmstat_updater deferrable again and shut down on idle sched/fair: call OPP update when going idle after migration sched/cpufreq_sched: fix thermal capping events sched/fair: Picking cpus with low OPPs for tasks that prefer idle CPUs FIXUP: sched/tune: do initialization as a postcore_initicall DEBUG: sched: add tracepoint for RD overutilized sched/tune: Introducing a new schedtune attribute prefer_idle sched: use util instead of capacity to select busy cpu arch_timer: add error handling when the MPM global timer is cleared FIXUP: sched: Fix double-release of spinlock in move_queued_task FIXUP: sched/fair: Fix hang during suspend in sched_group_energy FIXUP: sched: fix SchedFreq integration for both PELT and WALT sched: EAS: Avoid causing spikes to max-freq unnecessarily FIXUP: sched: fix set_cfs_cpu_capacity when WALT is in use sched/walt: Accounting for number of irqs pending on each core sched: Introduce Window Assisted Load Tracking (WALT) sched/tune: fix PB and PC cuts indexes definition sched/fair: optimize idle cpu selection for boosted tasks FIXUP: sched/tune: fix accounting for runnable tasks sched/tune: use a single initialisation function sched/{fair,tune}: simplify fair.c code FIXUP: sched/tune: fix payoff calculation for boost region sched/tune: Add support for negative boost values FIX: sched/tune: move schedtune_nornalize_energy into fair.c FIX: sched/tune: update usage of boosted task utilisation on CPU selection sched/fair: add tunable to set initial task load sched/fair: add tunable to force selection at cpu granularity sched: EAS: take cstate into account when selecting idle core sched/cpufreq_sched: Consolidated update FIXUP: sched: fix build for non-SMP target DEBUG: sched/tune: add tracepoint on P-E space filtering DEBUG: sched/tune: add tracepoint for energy_diff() values DEBUG: sched/tune: add tracepoint for task boost signal arm: topology: Define TC2 energy and provide it to the scheduler CHROMIUM: sched: update the average of nr_running DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values DEBUG: schedtune: add tracepoint for CPU boost signal DEBUG: schedtune: add tracepoint for SchedTune configuration update DEBUG: sched: add energy procfs interface DEBUG: sched,cpufreq: add cpu_capacity change tracepoint DEBUG: sched: add tracepoint for CPU load/util signals DEBUG: sched: add tracepoint for task load/util signals DEBUG: sched: add tracepoint for cpu/freq scale invariance sched/fair: filter energy_diff() based on energy_payoff value sched/tune: add support to compute normalized energy sched/fair: keep track of energy/capacity variations sched/fair: add boosted task utilization sched/{fair,tune}: track RUNNABLE tasks impact on per CPU boost value sched/tune: compute and keep track of per CPU boost value sched/tune: add initial support for CGroups based boosting sched/fair: add boosted CPU usage sched/fair: add function to convert boost value into "margin" sched/tune: add sysctl interface to define a boost value sched/tune: add detailed documentation fixup! sched/fair: jump to max OPP when crossing UP threshold fixup! sched: scheduler-driven cpu frequency selection sched: rt scheduler sets capacity requirement sched: deadline: use deadline bandwidth in scale_rt_capacity sched: remove call of sched_avg_update from sched_rt_avg_update sched/cpufreq_sched: add trace events sched/fair: jump to max OPP when crossing UP threshold sched/fair: cpufreq_sched triggers for load balancing sched/{core,fair}: trigger OPP change request on fork() sched/fair: add triggers for OPP change requests sched: scheduler-driven cpu frequency selection cpufreq: introduce cpufreq_driver_is_slow sched: Consider misfit tasks when load-balancing sched: Add group_misfit_task load-balance type sched: Add per-cpu max capacity to sched_group_capacity sched: Do eas idle balance regardless of the rq avg idle value arm64: Enable max freq invariant scheduler load-tracking and capacity support arm: Enable max freq invariant scheduler load-tracking and capacity support sched: Update max cpu capacity in case of max frequency constraints cpufreq: Max freq invariant scheduler load-tracking and cpu capacity support arm64, topology: Updates to use DT bindings for EAS costing data sched: Support for extracting EAS energy costs from DT Documentation: DT bindings for energy model cost data required by EAS sched: Disable energy-unfriendly nohz kicks sched: Consider a not over-utilized energy-aware system as balanced sched: Energy-aware wake-up task placement sched: Determine the current sched_group idle-state sched, cpuidle: Track cpuidle state index in the scheduler sched: Add over-utilization/tipping point indicator sched: Estimate energy impact of scheduling decisions sched: Extend sched_group_energy to test load-balancing decisions sched: Calculate energy consumption of sched_group sched: Highest energy aware balancing sched_domain level pointer sched: Relocated cpu_util() and change return type sched: Compute cpu capacity available at current frequency arm64: Cpu invariant scheduler load-tracking and capacity support arm: Cpu invariant scheduler load-tracking and capacity support sched: Introduce SD_SHARE_CAP_STATES sched_domain flag sched: Initialize energy data structures sched: Introduce energy data structures sched: Make energy awareness a sched feature sched: Documentation for scheduler energy cost model sched: Prevent unnecessary active balance of single task in sched group sched: Enable idle balance to pull single task towards cpu with higher capacity sched: Consider spare cpu capacity at task wake-up sched: Add cpu capacity awareness to wakeup balancing sched: Store system-wide maximum cpu capacity in root domain arm: Update arch_scale_cpu_capacity() to reflect change to define arm64: Enable frequency invariant scheduler load-tracking support arm: Enable frequency invariant scheduler load-tracking support cpufreq: Frequency invariant scheduler load-tracking support sched/fair: Fix new task's load avg removed from source CPU in wake_up_new_task() FROMLIST: pstore: drop pmsg bounce buffer UPSTREAM: usercopy: remove page-spanning test for now UPSTREAM: usercopy: force check_object_size() inline BACKPORT: usercopy: fold builtin_const check into inline function UPSTREAM: x86/uaccess: force copy_*_user() to be inlined UPSTREAM: HID: core: prevent out-of-bound readings Android: Fix build breakages. UPSTREAM: tty: Prevent ldisc drivers from re-using stale tty fields UPSTREAM: netfilter: nfnetlink: correctly validate length of batch messages cpuset: Make cpusets restore on hotplug UPSTREAM: mm/slub: support left redzone UPSTREAM: Make the hardened user-copy code depend on having a hardened allocator Android: MMC/UFS IO Latency Histograms. UPSTREAM: usercopy: fix overlap check for kernel text UPSTREAM: usercopy: avoid potentially undefined behavior in pointer math UPSTREAM: unsafe_[get|put]_user: change interface to use a error target label BACKPORT: arm64: mm: fix location of _etext BACKPORT: ARM: 8583/1: mm: fix location of _etext BACKPORT: Don't show empty tag stats for unprivileged uids UPSTREAM: tcp: fix use after free in tcp_xmit_retransmit_queue() ANDROID: base-cfg: drop SECCOMP_FILTER config UPSTREAM: [media] xc2028: unlock on error in xc2028_set_config() UPSTREAM: [media] xc2028: avoid use after free ANDROID: base-cfg: enable SECCOMP config ANDROID: rcu_sync: Export rcu_sync_lockdep_assert RFC: FROMLIST: cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork RFC: FROMLIST: cgroup: avoid synchronize_sched() in __cgroup_procs_write() RFC: FROMLIST: locking/percpu-rwsem: Optimize readers and reduce global impact net: ipv6: Fix ping to link-local addresses. ipv6: fix endianness error in icmpv6_err ANDROID: dm: android-verity: Allow android-verity to be compiled as an independent module backporting: a brief introduce of backported feautures on 4.4 Linux 4.4.20 sysfs: correctly handle read offset on PREALLOC attrs hwmon: (iio_hwmon) fix memory leak in name attribute ALSA: line6: Fix POD sysfs attributes segfault ALSA: line6: Give up on the lock while URBs are released. ALSA: line6: Remove double line6_pcm_release() after failed acquire. ACPI / SRAT: fix SRAT parsing order with both LAPIC and X2APIC present ACPI / sysfs: fix error code in get_status() ACPI / drivers: replace acpi_probe_lock spinlock with mutex ACPI / drivers: fix typo in ACPI_DECLARE_PROBE_ENTRY macro staging: comedi: ni_mio_common: fix wrong insn_write handler staging: comedi: ni_mio_common: fix AO inttrig backwards compatibility staging: comedi: comedi_test: fix timer race conditions staging: comedi: daqboard2000: bug fix board type matching code USB: serial: option: add WeTelecom 0x6802 and 0x6803 products USB: serial: option: add WeTelecom WM-D200 USB: serial: mos7840: fix non-atomic allocation in write path USB: serial: mos7720: fix non-atomic allocation in write path USB: fix typo in wMaxPacketSize validation usb: chipidea: udc: don't touch DP when controller is in host mode USB: avoid left shift by -1 dmaengine: usb-dmac: check CHCR.DE bit in usb_dmac_isr_channel() crypto: qat - fix aes-xts key sizes crypto: nx - off by one bug in nx_of_update_msc() Input: i8042 - set up shared ps2_cmd_mutex for AUX ports Input: i8042 - break load dependency between atkbd/psmouse and i8042 Input: tegra-kbc - fix inverted reset logic btrfs: properly track when rescan worker is running btrfs: waiting on qgroup rescan should not always be interruptible fs/seq_file: fix out-of-bounds read gpio: Fix OF build problem on UM usb: renesas_usbhs: gadget: fix return value check in usbhs_mod_gadget_probe() megaraid_sas: Fix probing cards without io port mpt3sas: Fix resume on WarpDrive flash cards cdc-acm: fix wrong pipe type on rx interrupt xfers i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer() mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper aacraid: Check size values after double-fetch from user ARC: Elide redundant setup of DMA callbacks ARC: Call trace_hardirqs_on() before enabling irqs ARC: use correct offset in pt_regs for saving/restoring user mode r25 ARC: build: Better way to detect ISA compatible toolchain drm/i915: fix aliasing_ppgtt leak drm/amdgpu: record error code when ring test failed drm/amd/amdgpu: sdma resume fail during S4 on CI drm/amdgpu: skip TV/CV in display parsing drm/amdgpu: avoid a possible array overflow drm/amdgpu: fix amdgpu_move_blit on 32bit systems drm/amdgpu: Change GART offset to 64-bit iio: fix sched WARNING "do not call blocking ops when !TASK_RUNNING" sched/nohz: Fix affine unpinned timers mess sched/cputime: Fix NO_HZ_FULL getrusage() monotonicity regression of: fix reference counting in of_graph_get_endpoint_by_regs arm64: dts: rockchip: add reset saradc node for rk3368 SoCs mac80211: fix purging multicast PS buffer queue s390/dasd: fix hanging device after clear subchannel EDAC: Increment correct counter in edac_inc_ue_error() pinctrl/amd: Remove the default de-bounce time iommu/arm-smmu: Don't BUG() if we find aborting STEs with disable_bypass iommu/arm-smmu: Fix CMDQ error handling iommu/dma: Don't put uninitialised IOVA domains xhci: Make sure xhci handles USB_SPEED_SUPER_PLUS devices. USB: serial: ftdi_sio: add PIDs for Ivium Technologies devices USB: serial: ftdi_sio: add device ID for WICED USB UART dev board USB: serial: option: add support for Telit LE920A4 USB: serial: option: add D-Link DWM-156/A3 USB: serial: fix memleak in driver-registration error path xhci: don't dereference a xhci member after removing xhci usb: xhci: Fix panic if disconnect xhci: always handle "Command Ring Stopped" events usb/gadget: fix gadgetfs aio support. usb: gadget: fsl_qe_udc: off by one in setup_received_handle() USB: validate wMaxPacketValue entries in endpoint descriptors usb: renesas_usbhs: Use dmac only if the pipe type is bulk usb: renesas_usbhs: clear the BRDYSTS in usbhsg_ep_enable() USB: hub: change the locking in hub_activate USB: hub: fix up early-exit pathway in hub_activate usb: hub: Fix unbalanced reference count/memory leak/deadlocks usb: define USB_SPEED_SUPER_PLUS speed for SuperSpeedPlus USB3.1 devices usb: dwc3: gadget: increment request->actual once usb: dwc3: pci: add Intel Kabylake PCI ID usb: misc: usbtest: add fix for driver hang usb: ehci: change order of register cleanup during shutdown crypto: caam - defer aead_set_sh_desc in case of zero authsize crypto: caam - fix echainiv(authenc) encrypt shared descriptor crypto: caam - fix non-hmac hashes genirq/msi: Make sure PCI MSIs are activated early genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP um: Don't discard .text.exit section ACPI / CPPC: Prevent cpc_desc_ptr points to the invalid data ACPI: CPPC: Return error if _CPC is invalid on a CPU mmc: sdhci-acpi: Reduce Baytrail eMMC/SD/SDIO hangs PCI: Limit config space size for Netronome NFP4000 PCI: Add Netronome NFP4000 PF device ID PCI: Limit config space size for Netronome NFP6000 family PCI: Add Netronome vendor and device IDs PCI: Support PCIe devices with short cfg_size NVMe: Don't unmap controller registers on reset ALSA: hda - Manage power well properly for resume libnvdimm, nd_blk: mask off reserved status bits perf intel-pt: Fix occasional decoding errors when tracing system-wide vfio/pci: Fix NULL pointer oops in error interrupt setup handling virtio: fix memory leak in virtqueue_add() parisc: Fix order of EREFUSED define in errno.h arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO ALSA: usb-audio: Add quirk for ELP HD USB Camera ALSA: usb-audio: Add a sample rate quirk for Creative Live! Cam Socialize HD (VF0610) powerpc/eeh: eeh_pci_enable(): fix checking of post-request state SUNRPC: allow for upcalls for same uid but different gss service SUNRPC: Handle EADDRNOTAVAIL on connection failures tools/testing/nvdimm: fix SIGTERM vs hotplug crash uprobes/x86: Fix RIP-relative handling of EVEX-encoded instructions x86/mm: Disable preemption during CR3 read+write hugetlb: fix nr_pmds accounting with shared page tables mm: SLUB hardened usercopy support mm: SLAB hardened usercopy support s390/uaccess: Enable hardened usercopy sparc/uaccess: Enable hardened usercopy powerpc/uaccess: Enable hardened usercopy ia64/uaccess: Enable hardened usercopy arm64/uaccess: Enable hardened usercopy ARM: uaccess: Enable hardened usercopy x86/uaccess: Enable hardened usercopy x86: remove more uaccess_32.h complexity x86: remove pointless uaccess_32.h complexity x86: fix SMAP in 32-bit environments Use the new batched user accesses in generic user string handling Add 'unsafe' user access functions for batched accesses x86: reorganize SMAP handling in user space accesses mm: Hardened usercopy mm: Implement stack frame object validation mm: Add is_migrate_cma_page Linux 4.4.19 Documentation/module-signing.txt: Note need for version info if reusing a key module: Invalidate signatures on force-loaded modules dm flakey: error READ bios during the down_interval rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq() lpfc: fix oops in lpfc_sli4_scmd_to_wqidx_distr() from lpfc_send_taskmgmt() ACPI / EC: Work around method reentrancy limit in ACPICA for _Qxx x86/platform/intel_mid_pci: Rework IRQ0 workaround PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset MIPS: hpet: Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES MIPS: Don't register r4k sched clock when CPUFREQ enabled MIPS: mm: Fix definition of R6 cache instruction SUNRPC: Don't allocate a full sockaddr_storage for tracing Input: elan_i2c - properly wake up touchpad on ASUS laptops target: Fix ordered task CHECK_CONDITION early exception handling target: Fix max_unmap_lba_count calc overflow target: Fix race between iscsi-target connection shutdown + ABORT_TASK target: Fix missing complete during ABORT_TASK + CMD_T_FABRIC_STOP target: Fix ordered task target_setup_cmd_from_cdb exception hang iscsi-target: Fix panic when adding second TCP connection to iSCSI session ubi: Fix race condition between ubi device creation and udev ubi: Fix early logging ubi: Make volume resize power cut aware of: fix memory leak related to safe_name() IB/mlx4: Fix memory leak if QP creation failed IB/mlx4: Fix error flow when sending mads under SRIOV IB/mlx4: Fix the SQ size of an RC QP IB/IWPM: Fix a potential skb leak IB/IPoIB: Don't update neigh validity for unresolved entries IB/SA: Use correct free function IB/mlx5: Return PORT_ERR in Active to Initializing tranisition IB/mlx5: Fix post send fence logic IB/mlx5: Fix entries check in mlx5_ib_resize_cq IB/mlx5: Fix returned values of query QP IB/mlx5: Fix entries checks in mlx5_ib_create_cq IB/mlx5: Fix MODIFY_QP command input structure ALSA: hda - Fix headset mic detection problem for two dell machines ALSA: hda: add AMD Bonaire AZ PCI ID with proper driver caps ALSA: hda/realtek - Can't adjust speaker's volume on a Dell AIO ALSA: hda: Fix krealloc() with __GFP_ZERO usage mm/hugetlb: avoid soft lockup in set_max_huge_pages() mtd: nand: fix bug writing 1 byte less than page size block: fix bdi vs gendisk lifetime mismatch block: add missing group association in bio-cloning functions metag: Fix __cmpxchg_u32 asm constraint for CMP ftrace/recordmcount: Work around for addition of metag magic but not relocations balloon: check the number of available pages in leak balloon drm/i915/dp: Revert "drm/i915/dp: fall back to 18 bpp when sink capability is unknown" drm/i915: Never fully mask the the EI up rps interrupt on SNB/IVB drm/edid: Add 6 bpc quirk for display AEO model 0. drm: Restore double clflush on the last partial cacheline drm/nouveau/fbcon: fix font width not divisible by 8 drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup drm/nouveau: check for supported chipset before booting fbdev off the hw drm/radeon: support backlight control for UNIPHY3 drm/radeon: fix firmware info version checks drm/radeon: Poll for both connect/disconnect on analog connectors drm/radeon: add a delay after ATPX dGPU power off drm/amdgpu/gmc7: add missing mullins case drm/amdgpu: fix firmware info version checks drm/amdgpu: Disable RPM helpers while reprobing connectors on resume drm/amdgpu: support backlight control for UNIPHY3 drm/amdgpu: Poll for both connect/disconnect on analog connectors drm/amdgpu: add a delay after ATPX dGPU power off w1:omap_hdq: fix regression netlabel: add address family checks to netlbl_{sock,req}_delattr() ARM: dts: sunxi: Add a startup delay for fixed regulator enabled phys audit: fix a double fetch in audit_log_single_execve_arg() iommu/amd: Update Alias-DTE in update_device_table() iommu/amd: Init unity mappings only for dma_ops domains iommu/amd: Handle IOMMU_DOMAIN_DMA in ops->domain_free call-back iommu/vt-d: Return error code in domain_context_mapping_one() iommu/exynos: Suppress unbinding to prevent system failure drm/i915: Don't complain about lack of ACPI video bios nfsd: don't return an unhashed lock stateid after taking mutex nfsd: Fix race between FREE_STATEID and LOCK nfs: don't create zero-length requests MIPS: KVM: Propagate kseg0/mapped tlb fault errors MIPS: KVM: Fix gfn range check in kseg0 tlb faults MIPS: KVM: Add missing gfn range check MIPS: KVM: Fix mapped fault broken commpage handling random: add interrupt callback to VMBus IRQ handler random: print a warning for the first ten uninitialized random users random: initialize the non-blocking pool via add_hwgenerator_randomness() CIFS: Fix a possible invalid memory access in smb2_query_symlink() cifs: fix crash due to race in hmac(md5) handling cifs: Check for existing directory when opening file with O_CREAT fs/cifs: make share unaccessible at root level mountable jbd2: make journal y2038 safe ARC: mm: don't loose PTE_SPECIAL in pte_modify() remoteproc: Fix potential race condition in rproc_add ovl: disallow overlayfs as upperdir HID: uhid: fix timeout when probe races with IO EDAC: Correct channel count limit Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU spi: pxa2xx: Clear all RFT bits in reset_sccr1() on Intel Quark i2c: efm32: fix a failure path in efm32_i2c_probe() s5p-mfc: Add release callback for memory region devs s5p-mfc: Set device name for reserved memory region devs hp-wmi: Fix wifi cannot be hard-unblocked dm: set DMF_SUSPENDED* _before_ clearing DMF_NOFLUSH_SUSPENDING sur40: fix occasional oopses on device close sur40: lower poll interval to fix occasional FPS drops to ~56 FPS Fix RC5 decoding with Fintek CIR chipset vb2: core: Skip planes array verification if pb is NULL videobuf2-v4l2: Verify planes array in buffer dequeueing media: dvb_ringbuffer: Add memory barriers media: usbtv: prevent access to free'd resources mfd: qcom_rpm: Parametrize also ack selector size mfd: qcom_rpm: Fix offset error for msm8660 intel_pstate: Fix MSR_CONFIG_TDP_x addressing in core_get_max_pstate() s390/cio: allow to reset channel measurement block KVM: nVMX: Fix memory corruption when using VMCS shadowing KVM: VMX: handle PML full VMEXIT that occurs during event delivery KVM: MTRR: fix kvm_mtrr_check_gfn_range_consistency page fault KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures arm64: mm: avoid fdt_check_header() before the FDT is fully mapped arm64: dts: rockchip: fixes the gic400 2nd region size for rk3368 pinctrl: cherryview: prevent concurrent access to GPIO controllers Bluetooth: hci_intel: Fix null gpio desc pointer dereference gpio: intel-mid: Remove potentially harmful code gpio: pca953x: Fix NBANK calculation for PCA9536 tty/serial: atmel: fix RS485 half duplex with DMA serial: samsung: Fix ERR pointer dereference on deferred probe tty: serial: msm: Don't read off end of tx fifo arm64: Fix incorrect per-cpu usage for boot CPU arm64: debug: unmask PSTATE.D earlier arm64: kernel: Save and restore UAO and addr_limit on exception entry USB: usbfs: fix potential infoleak in devio usb: renesas_usbhs: fix NULL pointer dereference in xfer_work() USB: serial: option: add support for Telit LE910 PID 0x1206 usb: dwc3: fix for the isoc transfer EP_BUSY flag usb: quirks: Add no-lpm quirk for Elan usb: renesas_usbhs: protect the CFIFOSEL setting in usbhsg_ep_enable() usb: f_fs: off by one bug in _ffs_func_bind() usb: gadget: avoid exposing kernel stack UPSTREAM: usb: gadget: configfs: add mutex lock before unregister gadget ANDROID: dm-verity: adopt changes made to dm callbacks UPSTREAM: ecryptfs: fix handling of directory opening ANDROID: net: core: fix UID-based routing ANDROID: net: fib: remove duplicate assignment FROMLIST: proc: Fix timerslack_ns CAP_SYS_NICE check when adjusting self ANDROID: dm verity fec: pack the fec_header structure ANDROID: dm: android-verity: Verify header before fetching table ANDROID: dm: allow adb disable-verity only in userdebug ANDROID: dm: mount as linear target if eng build ANDROID: dm: use default verity public key ANDROID: dm: fix signature verification flag ANDROID: dm: use name_to_dev_t ANDROID: dm: rename dm-linear methods for dm-android-verity ANDROID: dm: Minor cleanup ANDROID: dm: Mounting root as linear device when verity disabled ANDROID: dm-android-verity: Rebase on top of 4.1 ANDROID: dm: Add android verity target ANDROID: dm: fix dm_substitute_devices() ANDROID: dm: Rebase on top of 4.1 CHROMIUM: dm: boot time specification of dm= Implement memory_state_time, used by qcom,cpubw Revert "panic: Add board ID to panic output" usb: gadget: f_accessory: remove duplicate endpoint alloc BACKPORT: brcmfmac: defer DPC processing during probe FROMLIST: proc: Add LSM hook checks to /proc/<tid>/timerslack_ns FROMLIST: proc: Relax /proc/<tid>/timerslack_ns capability requirements UPSTREAM: ppp: defer netns reference release for ppp channel cpuset: Add allow_attach hook for cpusets on android. UPSTREAM: KEYS: Fix ASN.1 indefinite length object parsing ANDROID: sdcardfs: fix itnull.cocci warnings android-recommended.cfg: enable fstack-protector-strong Linux 4.4.18 mm: memcontrol: fix memcg id ref counter on swap charge move mm: memcontrol: fix swap counter leak on swapout from offline cgroup mm: memcontrol: fix cgroup creation failure after many small jobs ext4: fix reference counting bug on block allocation error ext4: short-cut orphan cleanup on error ext4: validate s_reserved_gdt_blocks on mount ext4: don't call ext4_should_journal_data() on the journal inode ext4: fix deadlock during page writeback ext4: check for extents that wrap around crypto: scatterwalk - Fix test in scatterwalk_done crypto: gcm - Filter out async ghash if necessary fs/dcache.c: avoid soft-lockup in dput() fuse: fix wrong assignment of ->flags in fuse_send_init() fuse: fuse_flush must check mapping->flags for errors fuse: fsync() did not return IO errors sysv, ipc: fix security-layer leaking block: fix use-after-free in seq file x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace drm/i915: Pretend cursor is always on for ILK-style WM calculations (v2) x86/mm/pat: Fix BUG_ON() in mmap_mem() on QEMU/i386 x86/pat: Document the PAT initialization sequence x86/xen, pat: Remove PAT table init code from Xen x86/mtrr: Fix PAT init handling when MTRR is disabled x86/mtrr: Fix Xorg crashes in Qemu sessions x86/mm/pat: Replace cpu_has_pat with boot_cpu_has() x86/mm/pat: Add pat_disable() interface x86/mm/pat: Add support of non-default PAT MSR setting devpts: clean up interface to pty drivers random: strengthen input validation for RNDADDTOENTCNT apparmor: fix ref count leak when profile sha1 hash is read Revert "s390/kdump: Clear subchannel ID to signal non-CCW/SCSI IPL" KEYS: 64-bit MIPS needs to use compat_sys_keyctl for 32-bit userspace arm: oabi compat: add missing access checks cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind i2c: i801: Allow ACPI SystemIO OpRegion to conflict with PCI BAR x86/mm/32: Enable full randomization on i386 and X86_32 HID: sony: do not bail out when the sixaxis refuses the output report PNP: Add Broadwell to Intel MCH size workaround PNP: Add Haswell-ULT to Intel MCH size workaround scsi: ignore errors from scsi_dh_add_device() ipath: Restrict use of the write() interface tcp: consider recv buf for the initial window scale qed: Fix setting/clearing bit in completion bitmap net/irda: fix NULL pointer dereference on memory allocation failure net: bgmac: Fix infinite loop in bgmac_dma_tx_add() bonding: set carrier off for devices created through netlink ipv4: reject RTNH_F_DEAD and RTNH_F_LINKDOWN from user space tcp: enable per-socket rate limiting of all 'challenge acks' tcp: make challenge acks less predictable arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE Linux 4.4.17 vfs: fix deadlock in file_remove_privs() on overlayfs intel_th: Fix a deadlock in modprobing intel_th: pci: Add Kaby Lake PCH-H support net: mvneta: set real interrupt per packet for tx_done libceph: apply new_state before new_up_client on incrementals libata: LITE-ON CX1-JB256-HP needs lower max_sectors i2c: mux: reg: wrong condition checked for of_address_to_resource return value posix_cpu_timer: Exit early when process has been reaped media: fix airspy usb probe error path ipr: Clear interrupt on croc/crocodile when running with LSI SCSI: fix new bug in scsi_dev_info_list string matching RDS: fix rds_tcp_init() error path can: fix oops caused by wrong rtnl dellink usage can: fix handling of unmodifiable configuration options fix can: c_can: Update D_CAN TX and RX functions to 32 bit - fix Altera Cyclone access can: at91_can: RX queue could get stuck at high bus load perf/x86: fix PEBS issues on Intel Atom/Core2 ovl: handle ATTR_KILL* sched/fair: Fix effective_load() to consistently use smoothed load mmc: block: fix packed command header endianness block: fix use-after-free in sys_ioprio_get() qeth: delete napi struct when removing a qeth device platform/chrome: cros_ec_dev - double fetch bug in ioctl clk: rockchip: initialize flags of clk_init_data in mmc-phase clock spi: sun4i: fix FIFO limit spi: sunxi: fix transfer timeout namespace: update event counter when umounting a deleted dentry 9p: use file_dentry() ext4: verify extent header depth ecryptfs: don't allow mmap when the lower fs doesn't support it Revert "ecryptfs: forbid opening files without mmap handler" locks: use file_inode() power_supply: power_supply_read_temp only if use_cnt > 0 cgroup: set css->id to -1 during init pinctrl: imx: Do not treat a PIN without MUX register as an error pinctrl: single: Fix missing flush of posted write for a wakeirq pvclock: Add CPU barriers to get correct version value Input: tsc200x - report proper input_dev name Input: xpad - validate USB endpoint count during probe Input: wacom_w8001 - w8001_MAX_LENGTH should be 13 Input: xpad - fix oops when attaching an unknown Xbox One gamepad Input: elantech - add more IC body types to the list Input: vmmouse - remove port reservation ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt ALSA: timer: Fix leak in events via snd_timer_user_ccallback ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS xenbus: don't bail early from xenbus_dev_request_and_reply() xenbus: don't BUG() on user mode induced condition xen/pciback: Fix conf_space read/write overlap check. ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame) arc: unwind: warn only once if DW2_UNWIND is disabled kernel/sysrq, watchdog, sched/core: Reset watchdog on all CPUs while processing sysrq-w pps: do not crash when failed to register vmlinux.lds: account for destructor sections mm, meminit: ensure node is online before checking whether pages are uninitialised mm, meminit: always return a valid node from early_pfn_to_nid mm, compaction: prevent VM_BUG_ON when terminating freeing scanner fs/nilfs2: fix potential underflow in call to crc32_le mm, compaction: abort free scanner if split fails mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask dmaengine: at_xdmac: double FIFO flush needed to compute residue dmaengine: at_xdmac: fix residue corruption dmaengine: at_xdmac: align descriptors on 64 bits x86/quirks: Add early quirk to reset Apple AirPort card x86/quirks: Reintroduce scanning of secondary buses x86/quirks: Apply nvidia_bugs quirk only on root bus USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails Conflicts: arch/arm/kernel/topology.c arch/arm64/include/asm/arch_gicv3.h arch/arm64/kernel/topology.c block/bio.c drivers/cpufreq/Kconfig drivers/md/Makefile drivers/media/dvb-core/dvb_ringbuffer.c drivers/media/tuners/tuner-xc2028.c drivers/misc/Kconfig drivers/misc/Makefile drivers/mmc/core/host.c drivers/scsi/ufs/ufshcd.c drivers/scsi/ufs/ufshcd.h drivers/usb/dwc3/gadget.c drivers/usb/gadget/configfs.c fs/ecryptfs/file.c include/linux/mmc/core.h include/linux/mmc/host.h include/linux/mmzone.h include/linux/sched.h include/linux/sched/sysctl.h include/trace/events/power.h include/trace/events/sched.h init/Kconfig kernel/cpuset.c kernel/exit.c kernel/sched/Makefile kernel/sched/core.c kernel/sched/cputime.c kernel/sched/fair.c kernel/sched/features.h kernel/sched/rt.c kernel/sched/sched.h kernel/sched/stop_task.c kernel/sched/tune.c lib/Kconfig.debug mm/Makefile mm/vmstat.c Change-Id: I243a43231ca56a6362076fa6301827e1b0493be5 Signed-off-by: Runmin Wang <runminw@codeaurora.org>
| * um: Don't discard .text.exit sectionAndrey Ryabinin2016-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit dad2232844073295c64e9cc2d734a0ade043e0f6 upstream. Commit e41f501d3912 ("vmlinux.lds: account for destructor sections") added '.text.exit' to EXIT_TEXT which is discarded at link time by default. This breaks compilation of UML: `.text.exit' referenced in section `.fini_array' of /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(sdlerror.o): defined in discarded section `.text.exit' of /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(sdlerror.o) Apparently UML doesn't want to discard exit text, so let's place all EXIT_TEXT sections in .exit.text. Fixes: e41f501d3912 ("vmlinux.lds: account for destructor sections") Reported-by: Stefan Traby <stefan@hello-penguin.com> Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Acked-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | um: define TIF_MM_RELEASEDVinayak Menon2016-04-18
| | | | | | | | | | | | | | | | | | Define TIF_MM_RELEASED to let UML compile. CRs-Fixed: 1003624 Change-Id: I65dd431b7f1f756b33a2a0b25ab841aad5368967 Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
* | Revert "net, lib: kill arch_fast_hash library bits"Rohit Vaswani2016-03-22
|/ | | | This reverts commit 0cb6c969ed9de43687abdfc63714b6fe4385d2fc.
* um: Switch clocksource to hrtimersAnton Ivanov2015-11-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UML is using an obsolete itimer call for all timers and "polls" for kernel space timer firing in its userspace portion resulting in a long list of bugs and incorrect behaviour(s). It also uses ITIMER_VIRTUAL for its timer which results in the timer being dependent on it running and the cpu load. This patch fixes this by moving to posix high resolution timers firing off CLOCK_MONOTONIC and relaying the timer correctly to the UML userspace. Fixes: - crashes when hosts suspends/resumes - broken userspace timers - effecive ~40Hz instead of what they should be. Note - this modifies skas behavior by no longer setting an itimer per clone(). Timer events are relayed instead. - kernel network packet scheduling disciplines - tcp behaviour especially under load - various timer related corner cases Finally, overall responsiveness of userspace is better. Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Anton Ivanov <aivanov@brocade.com> [rw: massaged commit message] Signed-off-by: Richard Weinberger <richard@nod.at>
* um: Store syscall number after syscall_trace_enter()Richard Weinberger2015-11-06
| | | | | | | To support changing syscall numbers we have to store it after syscall_trace_enter(). Signed-off-by: Richard Weinberger <richard@nod.at>
* um: Define PTRACE_OLDSETOPTIONSRichard Weinberger2015-11-06
| | | | | | ...such that processes within UML can do a ptrace(PTRACE_OLDSETOPTIONS, ...) Signed-off-by: Richard Weinberger <richard@nod.at>
* Merge branch 'strscpy' of ↵Linus Torvalds2015-10-04
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull strscpy string copy function implementation from Chris Metcalf. Chris sent this during the merge window, but I waffled back and forth on the pull request, which is why it's going in only now. The new "strscpy()" function is definitely easier to use and more secure than either strncpy() or strlcpy(), both of which are horrible nasty interfaces that have serious and irredeemable problems. strncpy() has a useless return value, and doesn't NUL-terminate an overlong result. To make matters worse, it pads a short result with zeroes, which is a performance disaster if you have big buffers. strlcpy(), by contrast, is a mis-designed "fix" for strlcpy(), lacking the insane NUL padding, but having a differently broken return value which returns the original length of the source string. Which means that it will read characters past the count from the source buffer, and you have to trust the source to be properly terminated. It also makes error handling fragile, since the test for overflow is unnecessarily subtle. strscpy() avoids both these problems, guaranteeing the NUL termination (but not excessive padding) if the destination size wasn't zero, and making the overflow condition very obvious by returning -E2BIG. It also doesn't read past the size of the source, and can thus be used for untrusted source data too. So why did I waffle about this for so long? Every time we introduce a new-and-improved interface, people start doing these interminable series of trivial conversion patches. And every time that happens, somebody does some silly mistake, and the conversion patch to the improved interface actually makes things worse. Because the patch is mindnumbing and trivial, nobody has the attention span to look at it carefully, and it's usually done over large swatches of source code which means that not every conversion gets tested. So I'm pulling the strscpy() support because it *is* a better interface. But I will refuse to pull mindless conversion patches. Use this in places where it makes sense, but don't do trivial patches to fix things that aren't actually known to be broken. * 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: use global strscpy() rather than private copy string: provide strscpy() Make asm/word-at-a-time.h available on all architectures
| * Make asm/word-at-a-time.h available on all architecturesChris Metcalf2015-07-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Added the x86 implementation of word-at-a-time to the generic version, which previously only supported big-endian. Omitted the x86-specific load_unaligned_zeropad(), which in any case is also not present for the existing BE-only implementation of a word-at-a-time, and is only used under CONFIG_DCACHE_WORD_ACCESS. Added as a "generic-y" to the Kbuilds of all architectures that didn't previously have it. Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
* | Merge branch 'x86/urgent' into x86/asm, before applying dependent patchesIngo Molnar2015-07-31
|\ \ | | | | | | | | | Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | mm: clean up per architecture MM hook header filesLaurent Dufour2015-07-17
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 2ae416b142b6 ("mm: new mm hook framework") introduced an empty header file (mm-arch-hooks.h) for every architecture, even those which doesn't need to define mm hooks. As suggested by Geert Uytterhoeven, this could be cleaned through the use of a generic header file included via each per architecture asm/include/Kbuild file. The PowerPC architecture is not impacted here since this architecture has to defined the arch_remap MM hook. Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Vineet Gupta <vgupta@synopsys.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* / um: Fix do_signal() prototypeIngo Molnar2015-07-07
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Once x86 exports its do_signal(), the prototypes will clash. Fix the clash and also improve the code a bit: remove the unnecessary kern_do_signal() indirection. This allows interrupt_end() to share the 'regs' parameter calculation. Also remove the unused return code to match x86. Minimally build and boot tested. Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Denys Vlasenko <vda.linux@googlemail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Richard Weinberger <richard.weinberger@gmail.com> Cc: Rik van Riel <riel@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: paulmck@linux.vnet.ibm.com Link: http://lkml.kernel.org/r/67c57eac09a589bac3c6c5ff22f9623ec55a184a.1435952415.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge branch 'for-linus-4.2-rc1' of ↵Linus Torvalds2015-06-28
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML updates from Richard Weinberger: - remove hppfs ("HonePot ProcFS") - initial support for musl libc - uaccess cleanup - random cleanups and bug fixes all over the place * 'for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: (21 commits) um: Don't pollute kernel namespace with uapi um: Include sys/types.h for makedev(), major(), minor() um: Do not use stdin and stdout identifiers for struct members um: Do not use __ptr_t type for stack_t's .ss pointer um: Fix mconsole dependency um: Handle tracehook_report_syscall_entry() result um: Remove copy&paste code from init.h um: Stop abusing __KERNEL__ um: Catch unprotected user memory access um: Fix warning in setup_signal_stack_si() um: Rework uaccess code um: Add uaccess.h to ldt.c um: Add uaccess.h to syscalls_64.c um: Add asm/elf.h to vma.c um: Cleanup mem_32/64.c headers um: Remove hppfs um: Move syscall() declaration into os.h um: kernel: ksyms: Export symbol syscall() for fixing modpost issue um/os-Linux: Use char[] for syscall_stub declarations um: Use char[] for linker script address declarations ...
| * um: Don't pollute kernel namespace with uapiRichard Weinberger2015-06-25
| | | | | | | | | | | | | | | | | | Don't include ptrace uapi stuff in arch headers, it will pollute the kernel namespace and conflict with existing stuff. In this case it fixes clashes with common names like R8. Signed-off-by: Richard Weinberger <richard@nod.at>
| * um: Handle tracehook_report_syscall_entry() resultRichard Weinberger2015-05-31
| | | | | | | | | | | | | | tracehook_report_syscall_entry() is allowed to fail, in case of failure we have to abort the current syscall. Signed-off-by: Richard Weinberger <richard@nod.at>
| * um: Remove copy&paste code from init.hRichard Weinberger2015-05-31
| | | | | | | | | | | | | | | | | | As we got rid of the __KERNEL__ abuse, we can directly include linux/compiler.h now. This also allows gcc 5 to build UML. Reported-by: Hans-Werner Hilse <hwhilse@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| * um: Stop abusing __KERNEL__Richard Weinberger2015-05-31
| | | | | | | | | | | | | | | | Currently UML is abusing __KERNEL__ to distinguish between kernel and host code (os-Linux). It is better to use a custom define such that existing users of __KERNEL__ don't get confused. Signed-off-by: Richard Weinberger <richard@nod.at>
| * um: Rework uaccess codeRichard Weinberger2015-05-31
| | | | | | | | | | | | | | Rework UML's uaccess code to reuse as much as possible from asm-generic/uaccess.c. Signed-off-by: Richard Weinberger <richard@nod.at>
| * um: Move syscall() declaration into os.hRichard Weinberger2015-05-31
| | | | | | | | Signed-off-by: Richard Weinberger <richard@nod.at>
| * um: Use char[] for linker script address declarationsNicolas Iooss2015-05-31
| | | | | | | | | | | | | | | | | | | | | | The linker script defines some variables which are declared either with type char[] in include/asm-generic/sections.h or with a meaningless integer type in arch/um/include/asm/sections.h. Fix this inconsistency by declaring every variable char[]. Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Richard Weinberger <richard@nod.at>
| * um: Create asm/sections.hNicolas Iooss2015-05-31
| | | | | | | | | | | | | | | | | | | | | | | | arch/um/kernel/dyn.lds.S and arch/um/kernel/uml.lds.S define some UML-specific symbols. These symbols are used in the kernel part of UML with extern declarations. Move these declarations to a new header, asm/sections.h, like other architectures do. Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Richard Weinberger <richard@nod.at>
* | Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-blockLinus Torvalds2015-06-25
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull asm/scatterlist.h removal from Jens Axboe: "We don't have any specific arch scatterlist anymore, since parisc finally switched over. Kill the include" * 'for-4.2/sg' of git://git.kernel.dk/linux-block: remove scatterlist.h generation from arch Kbuild files remove <asm/scatterlist.h>
| * | remove scatterlist.h generation from arch Kbuild filesChristoph Hellwig2015-05-19
| |/ | | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jens Axboe <axboe@fb.com>
* / mm: new mm hook frameworkLaurent Dufour2015-06-24
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CRIU is recreating the process memory layout by remapping the checkpointee memory area on top of the current process (criu). This includes remapping the vDSO to the place it has at checkpoint time. However some architectures like powerpc are keeping a reference to the vDSO base address to build the signal return stack frame by calling the vDSO sigreturn service. So once the vDSO has been moved, this reference is no more valid and the signal frame built later are not usable. This patch serie is introducing a new mm hook framework, and a new arch_remap hook which is called when mremap is done and the mm lock still hold. The next patch is adding the vDSO remap and unmap tracking to the powerpc architecture. This patch (of 3): This patch introduces a new set of header file to manage mm hooks: - per architecture empty header file (arch/x/include/asm/mm-arch-hooks.h) - a generic header (include/linux/mm-arch-hooks.h) The architecture which need to overwrite a hook as to redefine it in its header file, while architecture which doesn't need have nothing to do. The default hooks are defined in the generic header and are used in the case the architecture is not defining it. In a next step, mm hooks defined in include/asm-generic/mm_hooks.h should be moved here. Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'exec_domain_rip_v2' of ↵Linus Torvalds2015-04-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc Pull exec domain removal from Richard Weinberger: "This series removes execution domain support from Linux. The idea behind exec domains was to support different ABIs. The feature was never complete nor stable. Let's rip it out and make the kernel signal handling code less complicated" * 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (27 commits) arm64: Removed unused variable sparc: Fix execution domain removal Remove rest of exec domains. arch: Remove exec_domain from remaining archs arc: Remove signal translation and exec_domain xtensa: Remove signal translation and exec_domain xtensa: Autogenerate offsets in struct thread_info x86: Remove signal translation and exec_domain unicore32: Remove signal translation and exec_domain um: Remove signal translation and exec_domain tile: Remove signal translation and exec_domain sparc: Remove signal translation and exec_domain sh: Remove signal translation and exec_domain s390: Remove signal translation and exec_domain mn10300: Remove signal translation and exec_domain microblaze: Remove signal translation and exec_domain m68k: Remove signal translation and exec_domain m32r: Remove signal translation and exec_domain m32r: Autogenerate offsets in struct thread_info frv: Remove signal translation and exec_domain ...
| * um: Remove signal translation and exec_domainRichard Weinberger2015-04-12
| | | | | | | | | | | | | | | | As execution domain support is gone we can remove signal translation from the signal code and remove exec_domain from thread_info. Signed-off-by: Richard Weinberger <richard@nod.at>
* | um: Move uml_postsetup in the init_thread stackThomas Meyer2015-04-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | atomic_notifier_chain_register() and uml_postsetup() do call kernel code that rely on the "current" kernel macro and a valid task_struct resp. thread_info struct. Give those functions a valid stack by moving uml_postsetup() in the init_thread stack. This moves enables a panic() call in this early code to generate a valid stacktrace, instead of crashing. E.g. when an UML kernel is started with an initrd but too few physical memory the panic() call get's actually processed. Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Richard Weinberger <richard@nod.at>
* | um: Remove broken highmem supportRichard Weinberger2015-04-13
| | | | | | | | | | | | | | | | Highmem was always buggy and experimental on UML(i386). In times where 64 bit computers are default we can remove that experimental code. Signed-off-by: Richard Weinberger <richard@nod.at>
* | um: Remove broken SMP supportRichard Weinberger2015-04-13
| | | | | | | | | | | | | | | | | | | | | | | | At times where UML used the TT mode to operate it had kind of SMP support. It never got finished nor was stable. Let's rip out that cruft and stop confusing developers which do tree-wide SMP cleanups. If someone wants SMP support UML it has do be done from scratch. Signed-off-by: Richard Weinberger <richard@nod.at>
* | um: Remove SKAS3/4 supportRichard Weinberger2015-04-13
|/ | | | | | | | | | | | | Before we had SKAS0 UML had two modes of operation TT (tracing thread) and SKAS3/4 (separated kernel address space). TT was known to be insecure and got removed a long time ago. SKAS3/4 required a few (3 or 4) patches on the host side which never went mainline. The last host patch is 10 years old. With SKAS0 mode (separated kernel address space using 0 host patches), default since 2005, SKAS3/4 is obsolete and can be removed. Signed-off-by: Richard Weinberger <richard@nod.at>
* all arches, signal: move restart_block to struct task_structAndy Lutomirski2015-02-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an attacker can cause a controlled kernel stack overflow, overwriting the restart block is a very juicy exploit target. This is because the restart_block is held in the same memory allocation as the kernel stack. Moving the restart block to struct task_struct prevents this exploit by making the restart_block harder to locate. Note that there are other fields in thread_info that are also easy targets, at least on some architectures. It's also a decent simplification, since the restart code is more or less identical on all architectures. [james.hogan@imgtec.com: metag: align thread_info::supervisor_stack] Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: David Miller <davem@davemloft.net> Acked-by: Richard Weinberger <richard@nod.at> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Steven Miao <realmz6@gmail.com> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Tested-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: make FIRST_USER_ADDRESS unsigned long on all archsKirill A. Shutemov2015-02-11
| | | | | | | | | | | | | | | | | | | | | | | | LKP has triggered a compiler warning after my recent patch "mm: account pmd page tables to the process": mm/mmap.c: In function 'exit_mmap': >> mm/mmap.c:2857:2: warning: right shift count >= width of type [enabled by default] The code: > 2857 WARN_ON(mm_nr_pmds(mm) > 2858 round_up(FIRST_USER_ADDRESS, PUD_SIZE) >> PUD_SHIFT); In this, on tile, we have FIRST_USER_ADDRESS defined as 0. round_up() has the same type -- int. PUD_SHIFT. I think the best way to fix it is to define FIRST_USER_ADDRESS as unsigned long. On every arch for consistency. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reported-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* um: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-10
| | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2014-12-11
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: 1) New offloading infrastructure and example 'rocker' driver for offloading of switching and routing to hardware. This work was done by a large group of dedicated individuals, not limited to: Scott Feldman, Jiri Pirko, Thomas Graf, John Fastabend, Jamal Hadi Salim, Andy Gospodarek, Florian Fainelli, Roopa Prabhu 2) Start making the networking operate on IOV iterators instead of modifying iov objects in-situ during transfers. Thanks to Al Viro and Herbert Xu. 3) A set of new netlink interfaces for the TIPC stack, from Richard Alpe. 4) Remove unnecessary looping during ipv6 routing lookups, from Martin KaFai Lau. 5) Add PAUSE frame generation support to gianfar driver, from Matei Pavaluca. 6) Allow for larger reordering levels in TCP, which are easily achievable in the real world right now, from Eric Dumazet. 7) Add a variable of napi_schedule that doesn't need to disable cpu interrupts, from Eric Dumazet. 8) Use a doubly linked list to optimize neigh_parms_release(), from Nicolas Dichtel. 9) Various enhancements to the kernel BPF verifier, and allow eBPF programs to actually be attached to sockets. From Alexei Starovoitov. 10) Support TSO/LSO in sunvnet driver, from David L Stevens. 11) Allow controlling ECN usage via routing metrics, from Florian Westphal. 12) Remote checksum offload, from Tom Herbert. 13) Add split-header receive, BQL, and xmit_more support to amd-xgbe driver, from Thomas Lendacky. 14) Add MPLS support to openvswitch, from Simon Horman. 15) Support wildcard tunnel endpoints in ipv6 tunnels, from Steffen Klassert. 16) Do gro flushes on a per-device basis using a timer, from Eric Dumazet. This tries to resolve the conflicting goals between the desired handling of bulk vs. RPC-like traffic. 17) Allow userspace to ask for the CPU upon what a packet was received/steered, via SO_INCOMING_CPU. From Eric Dumazet. 18) Limit GSO packets to half the current congestion window, from Eric Dumazet. 19) Add a generic helper so that all drivers set their RSS keys in a consistent way, from Eric Dumazet. 20) Add xmit_more support to enic driver, from Govindarajulu Varadarajan. 21) Add VLAN packet scheduler action, from Jiri Pirko. 22) Support configurable RSS hash functions via ethtool, from Eyal Perry. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1820 commits) Fix race condition between vxlan_sock_add and vxlan_sock_release net/macb: fix compilation warning for print_hex_dump() called with skb->mac_header net/mlx4: Add support for A0 steering net/mlx4: Refactor QUERY_PORT net/mlx4_core: Add explicit error message when rule doesn't meet configuration net/mlx4: Add A0 hybrid steering net/mlx4: Add mlx4_bitmap zone allocator net/mlx4: Add a check if there are too many reserved QPs net/mlx4: Change QP allocation scheme net/mlx4_core: Use tasklet for user-space CQ completion events net/mlx4_core: Mask out host side virtualization features for guests net/mlx4_en: Set csum level for encapsulated packets be2net: Export tunnel offloads only when a VxLAN tunnel is created gianfar: Fix dma check map error when DMA_API_DEBUG is enabled cxgb4/csiostor: Don't use MASTER_MUST for fw_hello call net: fec: only enable mdio interrupt before phy device link up net: fec: clear all interrupt events to support i.MX6SX net: fec: reset fep link status in suspend function net: sock: fix access via invalid file descriptor net: introduce helper macro for_each_cmsghdr ...
| * net, lib: kill arch_fast_hash library bitsDaniel Borkmann2014-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As there are now no remaining users of arch_fast_hash(), lets kill it entirely. This basically reverts commit 71ae8aac3e19 ("lib: introduce arch optimized hash library") and follow-up work, that is f.e., commit 237217546d44 ("lib: hash: follow-up fixups for arch hash"), commit e3fec2f74f7f ("lib: Add missing arch generic-y entries for asm-generic/hash.h") and last but not least commit 6a02652df511 ("perf tools: Fix include for non x86 architectures"). Cc: Francesco Fusco <fusco@ntop.org> Cc: Thomas Graf <tgraf@suug.ch> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mm: Make arch_unmap()/bprm_mm_init() available to all architecturesDave Hansen2014-11-19
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The x86 MPX patch set calls arch_unmap() and arch_bprm_mm_init() from fs/exec.c, so we need at least a stub for them in all architectures. They are only called under an #ifdef for CONFIG_MMU=y, so we can at least restict this to architectures with MMU support. blackfin/c6x have no MMU support, so do not call arch_unmap(). They also do not include mm_hooks.h or mmu_context.h at all and do not need to be touched. s390, um and unicore32 do not use asm-generic/mm_hooks.h, so got their own arch_unmap() versions. (I also moved um's arch_dup_mmap() to be closer to the other mm_hooks.h functions). xtensa only includes mm_hooks when MMU=y, which should be fine since arch_unmap() is called only from MMU=y code. For the rest, we use the stub copies of these functions in asm-generic/mm_hook.h. I cross compiled defconfigs for cris (to check NOMMU) and s390 to make sure that this works. I also checked a 64-bit build of UML and all my normal x86 builds including PARAVIRT on and off. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dave Hansen <dave@sr71.net> Cc: linux-arch@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/20141118182350.8B4AA2C2@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* um: Add support for CONFIG_STACKTRACEDaniel Walter2014-10-13
| | | | | | | Add stacktrace support for User Mode Linux Signed-off-by: Daniel Walter <dwalter@google.com> Signed-off-by: Richard Weinberger <richard@nod.at>
* um: delete unnecessary bootmem struct page arrayHonggang Li2014-10-13
| | | | | | | | | | | | | 1) uml kernel bootmem managed through bootmem_data->node_bootmem_map, not the struct page array, so the array is unnecessary. 2) the bootmem struct page array has been pointed by a *local* pointer, struct page *map, in init_maps function. The array can be accessed only in init_maps's scope. As a result, uml kernel wastes about 1% of total memory. Signed-off-by: Honggang Li <enjoymindful@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>
* irq_work: Introduce arch_irq_work_has_interrupt()Peter Zijlstra2014-09-13
| | | | | | | | | | | | | | | The nohz full code needs irq work to trigger its own interrupt so that the subsystem can work even when the tick is stopped. Lets introduce arch_irq_work_has_interrupt() that archs can override to tell about their support for this ability. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
* Merge branch 'signal-cleanup' of ↵Linus Torvalds2014-08-09
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc Pull arch signal handling cleanup from Richard Weinberger: "This patch series moves all remaining archs to the get_signal(), signal_setup_done() and sigsp() functions. Currently these archs use open coded variants of the said functions. Further, unused parameters get removed from get_signal_to_deliver(), tracehook_signal_handler() and signal_delivered(). At the end of the day we save around 500 lines of code." * 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits) powerpc: Use sigsp() openrisc: Use sigsp() mn10300: Use sigsp() mips: Use sigsp() microblaze: Use sigsp() metag: Use sigsp() m68k: Use sigsp() m32r: Use sigsp() hexagon: Use sigsp() frv: Use sigsp() cris: Use sigsp() c6x: Use sigsp() blackfin: Use sigsp() avr32: Use sigsp() arm64: Use sigsp() arc: Use sigsp() sas_ss_flags: Remove nested ternary if Rip out get_signal_to_deliver() Clean up signal_delivered() tracehook_signal_handler: Remove sig, info, ka and regs ...
| * um: Use get_signal() signal_setup_done()Richard Weinberger2014-08-06
| | | | | | | | | | | | | | Use the more generic functions get_signal() signal_setup_done() for signal delivery. Signed-off-by: Richard Weinberger <richard@nod.at>
* | arm64,ia64,ppc,s390,sh,tile,um,x86,mm: remove default gate areaAndy Lutomirski2014-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The core mm code will provide a default gate area based on FIXADDR_USER_START and FIXADDR_USER_END if !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR). This default is only useful for ia64. arm64, ppc, s390, sh, tile, 64-bit UML, and x86_32 have their own code just to disable it. arm, 32-bit UML, and x86_64 have gate areas, but they have their own implementations. This gets rid of the default and moves the code into ia64. This should save some code on architectures without a gate area: it's now possible to inline the gate_area functions in the default case. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Acked-by: Nathan Lynch <nathan_lynch@mentor.com> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [in principle] Acked-by: Richard Weinberger <richard@nod.at> [for um] Acked-by: Will Deacon <will.deacon@arm.com> [for arm64] Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Nathan Lynch <Nathan_Lynch@mentor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>