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2018-08-07Merge android-4.4.146 (13962260) into msm-4.4Srinivasarao P
* refs/heads/tmp-13962260 Linux 4.4.146 scsi: sg: fix minor memory leak in error path crypto: padlock-aes - Fix Nano workaround data corruption kvm: x86: vmx: fix vpid leak virtio_balloon: fix another race between migration and ballooning net: socket: fix potential spectre v1 gadget in socketcall can: ems_usb: Fix memory leak on ems_usb_disconnect() squashfs: more metadata hardenings squashfs: more metadata hardening netlink: Fix spectre v1 gadget in netlink_create() net: dsa: Do not suspend/resume closed slave_dev inet: frag: enforce memory limits earlier tcp: add one more quick ack after after ECN events tcp: refactor tcp_ecn_check_ce to remove sk type cast tcp: do not aggressively quick ack after ECN events tcp: add max_quickacks param to tcp_incr_quickack and tcp_enter_quickack_mode tcp: do not force quickack when receiving out-of-order packets NET: stmmac: align DMA stuff to largest cache line length xen-netfront: wait xenbus state change when load module manually net: lan78xx: fix rx handling before first packet is send net: fix amd-xgbe flow-control issue ipv4: remove BUG_ON() from fib_compute_spec_dst ASoC: pxa: Fix module autoload for platform drivers dmaengine: pxa_dma: remove duplicate const qualifier ext4: check for allocation block validity with block group locked ext4: fix inline data updates with checksums enabled squashfs: be more careful about metadata corruption random: mix rdrand with entropy sent in from userspace drm: Add DP PSR2 sink enable bit media: si470x: fix __be16 annotations scsi: megaraid_sas: Increase timeout by 1 sec for non-RAID fastpath IOs scsi: scsi_dh: replace too broad "TP9" string with the exact models media: omap3isp: fix unbalanced dma_iommu_mapping crypto: authenc - don't leak pointers to authenc keys crypto: authencesn - don't leak pointers to authenc keys usb: hub: Don't wait for connect state at resume for powered-off ports microblaze: Fix simpleImage format generation audit: allow not equal op for audit by executable rsi: Fix 'invalid vdd' warning in mmc ipconfig: Correctly initialise ic_nameservers drm/gma500: fix psb_intel_lvds_mode_valid()'s return type memory: tegra: Apply interrupts mask per SoC memory: tegra: Do not handle spurious interrupts ALSA: hda/ca0132: fix build failure when a local macro is defined drm/atomic: Handling the case when setting old crtc for plane media: siano: get rid of __le32/__le16 cast warnings bpf: fix references to free_bpf_prog_info() in comments thermal: exynos: fix setting rising_threshold for Exynos5433 scsi: megaraid: silence a static checker bug scsi: 3w-xxxx: fix a missing-check bug scsi: 3w-9xxx: fix a missing-check bug perf: fix invalid bit in diagnostic entry s390/cpum_sf: Add data entry sizes to sampling trailer entry brcmfmac: Add support for bcm43364 wireless chipset mtd: rawnand: fsl_ifc: fix FSL NAND driver to read all ONFI parameter pages media: saa7164: Fix driver name in debug output libata: Fix command retry decision media: rcar_jpu: Add missing clk_disable_unprepare() on error in jpu_open() dma-iommu: Fix compilation when !CONFIG_IOMMU_DMA tty: Fix data race in tty_insert_flip_string_fixed_flag HID: i2c-hid: check if device is there before really probing powerpc/embedded6xx/hlwd-pic: Prevent interrupts from being handled by Starlet drm/radeon: fix mode_valid's return type HID: hid-plantronics: Re-resend Update to map button for PTT products ALSA: usb-audio: Apply rate limit to warning messages in URB complete callback media: smiapp: fix timeout checking in smiapp_read_nvm md: fix NULL dereference of mddev->pers in remove_and_add_spares() regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops ALSA: emu10k1: Rate-limit error messages about page errors scsi: ufs: fix exception event handling mwifiex: correct histogram data with appropriate index PCI: pciehp: Request control of native hotplug only if supported pinctrl: at91-pio4: add missing of_node_put powerpc/8xx: fix invalid register expression in head_8xx.S powerpc/powermac: Mark variable x as unused powerpc/powermac: Add missing prototype for note_bootable_part() powerpc/chrp/time: Make some functions static, add missing header include powerpc/32: Add a missing include header ath: Add regulatory mapping for Bahamas ath: Add regulatory mapping for Bermuda ath: Add regulatory mapping for Serbia ath: Add regulatory mapping for Tanzania ath: Add regulatory mapping for Uganda ath: Add regulatory mapping for APL2_FCCA ath: Add regulatory mapping for APL13_WORLD ath: Add regulatory mapping for ETSI8_WORLD ath: Add regulatory mapping for FCC3_ETSIC PCI: Prevent sysfs disable of device while driver is attached btrfs: qgroup: Finish rescan when hit the last leaf of extent tree btrfs: add barriers to btrfs_sync_log before log_commit_wait wakeups media: videobuf2-core: don't call memop 'finish' when queueing wlcore: sdio: check for valid platform device data before suspend mwifiex: handle race during mwifiex_usb_disconnect mfd: cros_ec: Fail early if we cannot identify the EC ASoC: dpcm: fix BE dai not hw_free and shutdown Bluetooth: btusb: Add a new Realtek 8723DE ID 2ff8:b011 Bluetooth: hci_qca: Fix "Sleep inside atomic section" warning iwlwifi: pcie: fix race in Rx buffer allocator perf/x86/intel/uncore: Correct fixed counter index check for NHM perf/x86/intel/uncore: Correct fixed counter index check in generic code usbip: usbip_detach: Fix memory, udev context and udev leak f2fs: fix to don't trigger writeback during recovery disable loading f2fs module on PAGE_SIZE > 4KB RDMA/mad: Convert BUG_ONs to error flows powerpc/64s: Fix compiler store ordering to SLB shadow area hvc_opal: don't set tb_ticks_per_usec in udbg_init_opal_common() infiniband: fix a possible use-after-free bug netfilter: ipset: List timing out entries with "timeout 1" instead of zero rtc: ensure rtc_set_alarm fails when alarms are not supported mm/slub.c: add __printf verification to slab_err() mm: vmalloc: avoid racy handling of debugobjects in vunmap nfsd: fix potential use-after-free in nfsd4_decode_getdeviceinfo ALSA: fm801: add error handling for snd_ctl_add ALSA: emu10k1: add error handling for snd_ctl_add xen/netfront: raise max number of slots in xennet_get_responses() tracing: Quiet gcc warning about maybe unused link variable tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure tracing: Fix possible double free in event_enable_trigger_func() tracing: Fix double free of event_trigger_data Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST Input: i8042 - add Lenovo LaVie Z to the i8042 reset list Input: elan_i2c - add ACPI ID for lenovo ideapad 330 MIPS: Fix off-by-one in pci_resource_to_user() kernel/sys.c: fix merge error with 4.4.144 Conflicts: drivers/scsi/ufs/ufshcd.c include/net/tcp.h net/socket.c Change-Id: Ie84fdcf54b0a45508f76ef56330291f54e35ed30 Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2018-08-06virtio_balloon: fix another race between migration and ballooningJiang Biao
commit 89da619bc18d79bca5304724c11d4ba3b67ce2c6 upstream. Kernel panic when with high memory pressure, calltrace looks like, PID: 21439 TASK: ffff881be3afedd0 CPU: 16 COMMAND: "java" #0 [ffff881ec7ed7630] machine_kexec at ffffffff81059beb #1 [ffff881ec7ed7690] __crash_kexec at ffffffff81105942 #2 [ffff881ec7ed7760] crash_kexec at ffffffff81105a30 #3 [ffff881ec7ed7778] oops_end at ffffffff816902c8 #4 [ffff881ec7ed77a0] no_context at ffffffff8167ff46 #5 [ffff881ec7ed77f0] __bad_area_nosemaphore at ffffffff8167ffdc #6 [ffff881ec7ed7838] __node_set at ffffffff81680300 #7 [ffff881ec7ed7860] __do_page_fault at ffffffff8169320f #8 [ffff881ec7ed78c0] do_page_fault at ffffffff816932b5 #9 [ffff881ec7ed78f0] page_fault at ffffffff8168f4c8 [exception RIP: _raw_spin_lock_irqsave+47] RIP: ffffffff8168edef RSP: ffff881ec7ed79a8 RFLAGS: 00010046 RAX: 0000000000000246 RBX: ffffea0019740d00 RCX: ffff881ec7ed7fd8 RDX: 0000000000020000 RSI: 0000000000000016 RDI: 0000000000000008 RBP: ffff881ec7ed79a8 R8: 0000000000000246 R9: 000000000001a098 R10: ffff88107ffda000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000008 R14: ffff881ec7ed7a80 R15: ffff881be3afedd0 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 It happens in the pagefault and results in double pagefault during compacting pages when memory allocation fails. Analysed the vmcore, the page leads to second pagefault is corrupted with _mapcount=-256, but private=0. It's caused by the race between migration and ballooning, and lock missing in virtballoon_migratepage() of virtio_balloon driver. This patch fix the bug. Fixes: e22504296d4f64f ("virtio_balloon: introduce migration primitives to balloon pages") Cc: stable@vger.kernel.org Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn> Signed-off-by: Huang Chong <huang.chong@zte.com.cn> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-01Merge android-4.4.118 (5f7f76a) into msm-4.4Srinivasarao P
* refs/heads/tmp-5f7f76a Linux 4.4.118 net: dst_cache_per_cpu_dst_set() can be static crypto: s5p-sss - Fix kernel Oops in AES-ECB mode KVM: nVMX: invvpid handling improvements KVM: VMX: clean up declaration of VPID/EPT invalidation types kvm: nVMX: Fix kernel panics induced by illegal INVEPT/INVVPID types KVM: nVMX: vmx_complete_nested_posted_interrupt() can't fail KVM: nVMX: kmap() can't fail x86/speculation: Fix typo IBRS_ATT, which should be IBRS_ALL x86/spectre: Simplify spectre_v2 command line parsing x86/retpoline: Avoid retpolines for built-in __init functions x86/kvm: Update spectre-v1 mitigation x86/paravirt: Remove 'noreplace-paravirt' cmdline option x86/spectre: Fix spelling mistake: "vunerable"-> "vulnerable" x86/spectre: Report get_user mitigation for spectre_v1 nl80211: Sanitize array index in parse_txq_params vfs, fdtable: Prevent bounds-check bypass via speculative execution x86/syscall: Sanitize syscall table de-references under speculation x86/get_user: Use pointer masking to limit speculation x86: Introduce barrier_nospec x86: Implement array_index_mask_nospec array_index_nospec: Sanitize speculative array de-references Documentation: Document array_index_nospec x86/spectre: Check CONFIG_RETPOLINE in command line parser x86/cpu/bugs: Make retpoline module warning conditional x86/bugs: Drop one "mitigation" from dmesg x86/nospec: Fix header guards names module/retpoline: Warn about missing retpoline in module KVM: VMX: Make indirect call speculation safe KVM: x86: Make indirect calls in emulator speculation safe x86/retpoline: Remove the esp/rsp thunk KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously kasan: rework Kconfig settings drm/gma500: remove helper function x86/microcode/AMD: Change load_microcode_amd()'s param to bool to fix preemptibility bug genksyms: Fix segfault with invalid declarations dell-wmi, dell-laptop: depends DMI netlink: fix nla_put_{u8,u16,u32} for KASAN ASoC: Intel: Kconfig: fix build when ACPI is not enabled ARM: tegra: select USB_ULPI from EHCI rather than platform ncr5380: shut up gcc indentation warning usb: phy: msm add regulator dependency idle: i7300: add PCI dependency binfmt_elf: compat: avoid unused function warning isdn: sc: work around type mismatch warning power: bq27xxx_battery: mark some symbols __maybe_unused Revert "power: bq27xxx_battery: Remove unneeded dependency in Kconfig" ncpfs: fix unused variable warning gpio: xgene: mark PM functions as __maybe_unused net: hp100: remove unnecessary #ifdefs dmaengine: zx: fix build warning perf/x86: Shut up false-positive -Wmaybe-uninitialized warning wireless: cw1200: use __maybe_unused to hide pm functions_ cw1200: fix bogus maybe-uninitialized warning v4l: remove MEDIA_TUNER dependency for VIDEO_TUNER hdpvr: hide unused variable drm/gma500: Sanity-check pipe index serial: 8250_mid: fix broken DMA dependency ASoC: rockchip: use __maybe_unused to hide st_irq_syscfg_resume ISDN: eicon: reduce stack size of sig_ind function em28xx: only use mt9v011 if camera support is enabled go7007: add MEDIA_CAMERA_SUPPORT dependency KVM: add X86_LOCAL_APIC dependency Input: tca8418_keypad - hide gcc-4.9 -Wmaybe-uninitialized warning drm/nouveau: hide gcc-4.9 -Wmaybe-uninitialized tc358743: fix register i2c_rd/wr functions staging: unisys: visorinput depends on INPUT i2c: remove __init from i2c_register_board_info() b2c2: flexcop: avoid unused function warnings infiniband: cxgb4: use %pR format string for printing resources iio: adc: axp288: remove redundant duplicate const on axp288_adc_channels ASoC: mediatek: add i2c dependency genirq/msi: Add stubs for get_cached_msi_msg/pci_write_msi_msg tty: cyclades: cyz_interrupt is only used for PCI drm/vmwgfx: use *_32_bits() macros tlan: avoid unused label with PCI=n tc1100-wmi: fix build warning when CONFIG_PM not enabled ipv4: ipconfig: avoid unused ic_proto_used symbol netfilter: ipvs: avoid unused variable warnings x86/platform/olpc: Fix resume handler build warning staging: wilc1000: fix kbuild test robot error rtlwifi: fix gcc-6 indentation warning USB: cdc_subset: only build when one driver is enabled hwrng: exynos - use __maybe_unused to hide pm functions fbdev: sm712fb: avoid unused function warnings Drivers: hv: vmbus: fix build warning modsign: hide openssl output in silent builds fbdev: s6e8ax0: avoid unused function warnings mtd: cfi: enforce valid geometry configuration mtd: sh_flctl: pass FIFO as physical address amd-xgbe: Fix unused suspend handlers build warning fbdev: auo_k190x: avoid unused function warnings driver-core: use 'dev' argument in dev_dbg_ratelimited stub target/user: Fix cast from pointer to phys_addr_t tty: hvc_xen: hide xen_console_remove when unused usb: musb/ux500: remove duplicate check for dma_is_compatible pwc: hide unused label SCSI: initio: remove duplicate module device table scsi: mvumi: use __maybe_unused to hide pm functions video: Use bool instead int pointer for get_opt_bool() argument fbdev: sis: enforce selection of at least one backend staging: ste_rmi4: avoid unused function warnings video: fbdev: sis: remove unused variable scsi: fdomain: drop fdomain_pci_tbl when built-in mptfusion: hide unused seq_mpt_print_ioc_summary function mtd: maps: add __init attribute mtd: ichxrom: maybe-uninitialized with gcc-4.9 md: avoid warning for 32-bit sector_t profile: hide unused functions when !CONFIG_PROC_FS dpt_i2o: fix build warning drivers/net: fix eisa_driver probe section mismatch scsi: sim710: fix build warning x86/boot: Avoid warning for zero-filling .bss thermal: spear: use __maybe_unused for PM functions ssb: mark ssb_bus_register as __maybe_unused reiserfs: avoid a -Wmaybe-uninitialized warning ALSA: hda/ca0132 - fix possible NULL pointer use arm64: Kconfig: select COMPAT_BINFMT_ELF only when BINFMT_ELF is set scsi: advansys: fix uninitialized data access x86/platform: Add PCI dependency for PUNIT_ATOM_DEBUG x86: add MULTIUSER dependency for KVM thermal: fix INTEL_SOC_DTS_IOSF_CORE dependencies x86/build: Silence the build with "make -s" tools build: Add tools tree support for 'make -s' x86/fpu/math-emu: Fix possible uninitialized variable use arm64: define BUG() instruction without CONFIG_BUG x86/ras/inject: Make it depend on X86_LOCAL_APIC=y scsi: advansys: fix build warning for PCI=n video: fbdev: via: remove possibly unused variables platform/x86: intel_mid_thermal: Fix suspend handlers unused warning gpio: intel-mid: Fix build warning when !CONFIG_PM vmxnet3: prevent building with 64K pages isdn: icn: remove a #warning virtio_balloon: prevent uninitialized variable use hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close xen: XEN_ACPI_PROCESSOR is Dom0-only x86/mm/kmmio: Fix mmiotrace for page unaligned addresses mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep dmaengine: jz4740: disable/unprepare clk if probe fails drm/armada: fix leak of crtc structure xfrm: Fix stack-out-of-bounds with misconfigured transport mode policies. spi: sun4i: disable clocks in the remove function ASoC: rockchip: disable clock on error clk: fix a panic error caused by accessing NULL pointer dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved dmaengine: ioat: Fix error handling path 509: fix printing uninitialized stack memory when OID is empty btrfs: Fix possible off-by-one in btrfs_search_path_in_tree net_sched: red: Avoid illegal values net_sched: red: Avoid devision by zero gianfar: fix a flooded alignment reports because of padding issue. s390/dasd: prevent prefix I/O error powerpc/perf: Fix oops when grouping different pmu events ipvlan: Add the skb->mark as flow4's member to lookup route scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none RDMA/cma: Make sure that PSN is not over max allowed pinctrl: sunxi: Fix A80 interrupt pin bank media: s5k6aa: describe some function parameters perf bench numa: Fixup discontiguous/sparse numa nodes perf top: Fix window dimensions change handling ARM: dts: am4372: Correct the interrupts_properties of McASP ARM: dts: Fix omap4 hang with GPS connected to USB by using wakeupgen ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context usb: build drivers/usb/common/ when USB_SUPPORT is set usbip: keep usbip_device sockfd state in sync with tcp_socket staging: iio: adc: ad7192: fix external frequency setting binder: check for binder_thread allocation failure in binder_poll() staging: android: ashmem: Fix a race condition in pin ioctls dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock Make DST_CACHE a silent config option arm64: dts: add #cooling-cells to CPU nodes video: fbdev/mmp: add MODULE_LICENSE ASoC: ux500: add MODULE_LICENSE tag net: avoid skb_warn_bad_offload on IS_ERR netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert netfilter: on sockopt() acquire sock lock only in the required scope netfilter: ipt_CLUSTERIP: fix out-of-bounds accesses in clusterip_tg_check() netfilter: x_tables: avoid out-of-bounds reads in xt_request_find_{match|target} netfilter: x_tables: fix int overflow in xt_alloc_table_info() KVM: x86: fix escape of guest dr6 to the host crypto: x86/twofish-3way - Fix %rbp usage selinux: skip bounded transition processing if the policy isn't loaded selinux: ensure the context is NUL terminated in security_context_to_sid_core() Provide a function to create a NUL-terminated string from unterminated data drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all blktrace: fix unlocked registration of tracepoints xfrm: check id proto in validate_tmpl() xfrm: Fix stack-out-of-bounds read on socket policy lookup. mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed. cfg80211: check dev_set_name() return value net: replace dst_cache ip6_tunnel implementation with the generic one net: add dst_cache support ANDROID: sdcardfs: Hold i_mutex for i_size_write BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck64-XTS BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck128-XTS BACKPORT, FROMGIT: crypto: arm/speck - add NEON-accelerated implementation of Speck-XTS FROMGIT: crypto: speck - export common helpers BACKPORT, FROMGIT: crypto: speck - add support for the Speck block cipher UPSTREAM: ANDROID: binder: synchronize_rcu() when using POLLFREE. f2fs: updates on v4.16-rc1 Conflicts: net/Kconfig net/core/Makefile Change-Id: I659b0444812b04252f1f1fba8bc62410ce42b061 Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2018-02-25virtio_balloon: prevent uninitialized variable useArnd Bergmann
commit f0bb2d50dfcc519f06f901aac88502be6ff1df2c upstream. The latest gcc-7.0.1 snapshot reports a new warning: virtio/virtio_balloon.c: In function 'update_balloon_stats': virtio/virtio_balloon.c:258:26: error: 'events[2]' is used uninitialized in this function [-Werror=uninitialized] virtio/virtio_balloon.c:260:26: error: 'events[3]' is used uninitialized in this function [-Werror=uninitialized] virtio/virtio_balloon.c:261:56: error: 'events[18]' is used uninitialized in this function [-Werror=uninitialized] virtio/virtio_balloon.c:262:56: error: 'events[17]' is used uninitialized in this function [-Werror=uninitialized] This seems absolutely right, so we should add an extra check to prevent copying uninitialized stack data into the statistics. >From all I can tell, this has been broken since the statistics code was originally added in 2.6.34. Fixes: 9564e138b1f6 ("virtio: Add memory statistics reporting to the balloon driver (V4)") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ladi Prosek <lprosek@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-18Merge android-4.4.106 (2fea039) into msm-4.4Srinivasarao P
* refs/heads/tmp-2fea039 Linux 4.4.106 usb: gadget: ffs: Forbid usb_ep_alloc_request from sleeping arm: KVM: Fix VTTBR_BADDR_MASK BUG_ON off-by-one Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers" Revert "x86/efi: Hoist page table switching code into efi_call_virt()" Revert "x86/efi: Build our own page table structures" net/packet: fix a race in packet_bind() and packet_notifier() packet: fix crash in fanout_demux_rollover() sit: update frag_off info rds: Fix NULL pointer dereference in __rds_rdma_map tipc: fix memory leak in tipc_accept_from_sock() more bio_map_user_iov() leak fixes s390: always save and restore all registers on context switch ipmi: Stop timers before cleaning up the module audit: ensure that 'audit=1' actually enables audit for PID 1 ipvlan: fix ipv6 outbound device afs: Connect up the CB.ProbeUuid IB/mlx5: Assign send CQ and recv CQ of UMR QP IB/mlx4: Increase maximal message size under UD QP xfrm: Copy policy family in clone_policy jump_label: Invoke jump_label_test() via early_initcall() atm: horizon: Fix irq release error sctp: use the right sk after waking up from wait_buf sleep sctp: do not free asoc when it is already dead in sctp_sendmsg sparc64/mm: set fields in deferred pages block: wake up all tasks blocked in get_request() sunrpc: Fix rpc_task_begin trace point NFS: Fix a typo in nfs_rename() dynamic-debug-howto: fix optional/omitted ending line number to be LARGE instead of 0 lib/genalloc.c: make the avail variable an atomic_long_t route: update fnhe_expires for redirect when the fnhe exists route: also update fnhe_genid when updating a route cache mac80211_hwsim: Fix memory leak in hwsim_new_radio_nl() kbuild: pkg: use --transform option to prefix paths in tar EDAC, i5000, i5400: Fix definition of NRECMEMB register EDAC, i5000, i5400: Fix use of MTR_DRAM_WIDTH macro powerpc/powernv/ioda2: Gracefully fail if too many TCE levels requested drm/amd/amdgpu: fix console deadlock if late init failed axonram: Fix gendisk handling netfilter: don't track fragmented packets zram: set physical queue limits to avoid array out of bounds accesses i2c: riic: fix restart condition crypto: s5p-sss - Fix completing crypto request in IRQ handler ipv6: reorder icmpv6_init() and ip6_mr_init() bnx2x: do not rollback VF MAC/VLAN filters we did not configure bnx2x: fix possible overrun of VFPF multicast addresses array bnx2x: prevent crash when accessing PTP with interface down spi_ks8995: fix "BUG: key accdaa28 not in .data!" arm64: KVM: Survive unknown traps from guests arm: KVM: Survive unknown traps from guests KVM: nVMX: reset nested_run_pending if the vCPU is going to be reset irqchip/crossbar: Fix incorrect type of register size scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters workqueue: trigger WARN if queue_delayed_work() is called with NULL @wq libata: drop WARN from protocol error in ata_sff_qc_issue() kvm: nVMX: VMCLEAR should not cause the vCPU to shut down USB: gadgetfs: Fix a potential memory leak in 'dev_config()' usb: gadget: configs: plug memory leak HID: chicony: Add support for another ASUS Zen AiO keyboard gpio: altera: Use handle_level_irq when configured as a level_high ARM: OMAP2+: Release device node after it is no longer needed. ARM: OMAP2+: Fix device node reference counts module: set __jump_table alignment to 8 selftest/powerpc: Fix false failures for skipped tests x86/hpet: Prevent might sleep splat on resume ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure vti6: Don't report path MTU below IPV6_MIN_MTU. Revert "s390/kbuild: enable modversions for symbols exported from asm" Revert "spi: SPI_FSL_DSPI should depend on HAS_DMA" Revert "drm/armada: Fix compile fail" mm: drop unused pmdp_huge_get_and_clear_notify() thp: fix MADV_DONTNEED vs. numa balancing race thp: reduce indentation level in change_huge_pmd() scsi: storvsc: Workaround for virtual DVD SCSI version ARM: avoid faulting on qemu ARM: BUG if jumping to usermode address in kernel mode arm64: fpsimd: Prevent registers leaking from dead tasks KVM: VMX: remove I/O port 0x80 bypass on Intel hosts arm64: KVM: fix VTTBR_BADDR_MASK BUG_ON off-by-one media: dvb: i2c transfers over usb cannot be done from stack drm/exynos: gem: Drop NONCONTIG flag for buffers allocated without IOMMU drm: extra printk() wrapper macros kdb: Fix handling of kallsyms_symbol_next() return value s390: fix compat system call table iommu/vt-d: Fix scatterlist offset handling ALSA: usb-audio: Add check return value for usb_string() ALSA: usb-audio: Fix out-of-bound error ALSA: seq: Remove spurious WARN_ON() at timer check ALSA: pcm: prevent UAF in snd_pcm_info x86/PCI: Make broadcom_postcore_init() check acpi_disabled X.509: reject invalid BIT STRING for subjectPublicKey ASN.1: check for error from ASN1_OP_END__ACT actions ASN.1: fix out-of-bounds read when parsing indefinite length item efi: Move some sysfs files to be read-only by root scsi: libsas: align sata_device's rps_resp on a cacheline isa: Prevent NULL dereference in isa_bus driver callbacks hv: kvp: Avoid reading past allocated blocks from KVP file virtio: release virtio index when fail to device_register can: usb_8dev: cancel urb on -EPIPE and -EPROTO can: esd_usb2: cancel urb on -EPIPE and -EPROTO can: ems_usb: cancel urb on -EPIPE and -EPROTO can: kvaser_usb: cancel urb on -EPIPE and -EPROTO can: kvaser_usb: ratelimit errors if incomplete messages are received can: kvaser_usb: Fix comparison bug in kvaser_usb_read_bulk_callback() can: kvaser_usb: free buf in error paths can: ti_hecc: Fix napi poll return value for repoll BACKPORT: irq: Make the irqentry text section unconditional UPSTREAM: arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections UPSTREAM: x86, kasan, ftrace: Put APIC interrupt handlers into .irqentry.text UPSTREAM: kasan: make get_wild_bug_type() static UPSTREAM: kasan: separate report parts by empty lines UPSTREAM: kasan: improve double-free report format UPSTREAM: kasan: print page description after stacks UPSTREAM: kasan: improve slab object description UPSTREAM: kasan: change report header UPSTREAM: kasan: simplify address description logic UPSTREAM: kasan: change allocation and freeing stack traces headers UPSTREAM: kasan: unify report headers UPSTREAM: kasan: introduce helper functions for determining bug type BACKPORT: kasan: report only the first error by default UPSTREAM: kasan: fix races in quarantine_remove_cache() UPSTREAM: kasan: resched in quarantine_remove_cache() BACKPORT: kasan, sched/headers: Uninline kasan_enable/disable_current() BACKPORT: kasan: drain quarantine of memcg slab objects UPSTREAM: kasan: eliminate long stalls during quarantine reduction UPSTREAM: kasan: support panic_on_warn UPSTREAM: x86/suspend: fix false positive KASAN warning on suspend/resume UPSTREAM: kasan: support use-after-scope detection UPSTREAM: kasan/tests: add tests for user memory access functions UPSTREAM: mm, kasan: add a ksize() test UPSTREAM: kasan: test fix: warn if the UAF could not be detected in kmalloc_uaf2 UPSTREAM: kasan: modify kmalloc_large_oob_right(), add kmalloc_pagealloc_oob_right() UPSTREAM: lib/stackdepot: export save/fetch stack for drivers UPSTREAM: lib/stackdepot.c: bump stackdepot capacity from 16MB to 128MB BACKPORT: kprobes: Unpoison stack in jprobe_return() for KASAN UPSTREAM: kasan: remove the unnecessary WARN_ONCE from quarantine.c UPSTREAM: kasan: avoid overflowing quarantine size on low memory systems UPSTREAM: kasan: improve double-free reports BACKPORT: mm: coalesce split strings BACKPORT: mm/kasan: get rid of ->state in struct kasan_alloc_meta UPSTREAM: mm/kasan: get rid of ->alloc_size in struct kasan_alloc_meta UPSTREAM: mm: kasan: remove unused 'reserved' field from struct kasan_alloc_meta UPSTREAM: mm/kasan, slub: don't disable interrupts when object leaves quarantine UPSTREAM: mm/kasan: don't reduce quarantine in atomic contexts UPSTREAM: mm/kasan: fix corruptions and false positive reports UPSTREAM: lib/stackdepot.c: use __GFP_NOWARN for stack allocations BACKPORT: mm, kasan: switch SLUB to stackdepot, enable memory quarantine for SLUB UPSTREAM: kasan/quarantine: fix bugs on qlist_move_cache() UPSTREAM: mm: mempool: kasan: don't poot mempool objects in quarantine UPSTREAM: kasan: change memory hot-add error messages to info messages BACKPORT: mm/kasan: add API to check memory regions UPSTREAM: mm/kasan: print name of mem[set,cpy,move]() caller in report UPSTREAM: mm: kasan: initial memory quarantine implementation UPSTREAM: lib/stackdepot: avoid to return 0 handle UPSTREAM: lib/stackdepot.c: allow the stack trace hash to be zero UPSTREAM: mm, kasan: fix compilation for CONFIG_SLAB BACKPORT: mm, kasan: stackdepot implementation. Enable stackdepot for SLAB BACKPORT: mm, kasan: add GFP flags to KASAN API UPSTREAM: mm, kasan: SLAB support UPSTREAM: mm/slab: align cache size first before determination of OFF_SLAB candidate UPSTREAM: mm/slab: use more appropriate condition check for debug_pagealloc UPSTREAM: mm/slab: factor out debugging initialization in cache_init_objs() UPSTREAM: mm/slab: remove object status buffer for DEBUG_SLAB_LEAK UPSTREAM: mm/slab: alternative implementation for DEBUG_SLAB_LEAK UPSTREAM: mm/slab: clean up DEBUG_PAGEALLOC processing code UPSTREAM: mm/slab: activate debug_pagealloc in SLAB when it is actually enabled sched: EAS/WALT: Don't take into account of running task's util BACKPORT: schedutil: Reset cached freq if it is not in sync with next_freq UPSTREAM: kasan: add functions to clear stack poison Conflicts: arch/arm/include/asm/kvm_arm.h arch/arm64/kernel/vmlinux.lds.S include/linux/kasan.h kernel/softirq.c lib/Kconfig lib/Kconfig.kasan lib/Makefile lib/stackdepot.c mm/kasan/kasan.c sound/usb/mixer.c Change-Id: If70ced6da5f19be3dd92d10a8d8cd4d5841e5870 Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2017-12-16virtio: release virtio index when fail to device_registerweiping zhang
commit e60ea67bb60459b95a50a156296041a13e0e380e upstream. index can be reused by other virtio device. Signed-off-by: weiping zhang <zhangweiping@didichuxing.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-20Merge branch 'android-4.4@c71ad0f' into branch 'msm-4.4'Blagovest Kolenichev
* refs/heads/tmp-c71ad0f: BACKPORT: arm64: dts: juno: fix cluster sleep state entry latency on all SoC versions staging: android: ashmem: lseek failed due to no FMODE_LSEEK. ANDROID: sdcardfs: update module info ANDROID: sdcardfs: use d_splice_alias ANDROID: sdcardfs: add read_iter/write_iter opeations ANDROID: sdcardfs: fix ->llseek to update upper and lower offset ANDROID: sdcardfs: copy lower inode attributes in ->ioctl ANDROID: sdcardfs: remove unnecessary call to do_munmap Merge 4.4.59 into android-4.4 UPSTREAM: ipv6 addrconf: implement RFC7559 router solicitation backoff android: base-cfg: enable CONFIG_INET_DIAG_DESTROY ANDROID: android-base.cfg: add CONFIG_MODULES option ANDROID: android-base.cfg: add CONFIG_IKCONFIG option ANDROID: android-base.cfg: properly sort the file ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES. ANDROID: sort android-recommended.cfg UPSTREAM: config/android: Remove CONFIG_IPV6_PRIVACY UPSTREAM: config: android: set SELinux as default security mode config: android: move device mapper options to recommended ANDROID: ARM64: Allow to choose appended kernel image UPSTREAM: arm64: vdso: constify vm_special_mapping used for aarch32 vectors page UPSTREAM: arm64: vdso: add __init section marker to alloc_vectors_page UPSTREAM: ARM: 8597/1: VDSO: put RO and RO after init objects into proper sections UPSTREAM: arm64: Add support for CLOCK_MONOTONIC_RAW in clock_gettime() vDSO UPSTREAM: arm64: Refactor vDSO time functions UPSTREAM: arm64: fix vdso-offsets.h dependency UPSTREAM: kbuild: drop FORCE from PHONY targets UPSTREAM: mm: add PHYS_PFN, use it in __phys_to_pfn() UPSTREAM: ARM: 8476/1: VDSO: use PTR_ERR_OR_ZERO for vma check Linux 4.4.58 crypto: algif_hash - avoid zero-sized array fbcon: Fix vc attr at deinit serial: 8250_pci: Detach low-level driver during PCI error recovery ACPI / blacklist: Make Dell Latitude 3350 ethernet work ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520 uvcvideo: uvc_scan_fallback() for webcams with broken chain s390/zcrypt: Introduce CEX6 toleration block: allow WRITE_SAME commands with the SG_IO ioctl vfio/spapr: Postpone allocation of userspace version of TCE table PCI: Do any VF BAR updates before enabling the BARs PCI: Ignore BAR updates on virtual functions PCI: Update BARs using property bits appropriate for type PCI: Don't update VF BARs while VF memory space is enabled PCI: Decouple IORESOURCE_ROM_ENABLE and PCI_ROM_ADDRESS_ENABLE PCI: Add comments about ROM BAR updating PCI: Remove pci_resource_bar() and pci_iov_resource_bar() PCI: Separate VF BAR updates from standard BAR updates x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic igb: add i211 to i210 PHY workaround igb: Workaround for igb i210 firmware issue xen: do not re-use pirq number cached in pci device msi msg data xfs: clear _XBF_PAGES from buffers when readahead page USB: usbtmc: add missing endpoint sanity check nl80211: fix dumpit error path RTNL deadlocks xfs: fix up xfs_swap_extent_forks inline extent handling xfs: don't allow di_size with high bit set libceph: don't set weight to IN when OSD is destroyed raid10: increment write counter after bio is split cpufreq: Restore policy min/max limits on CPU online ARM: dts: at91: sama5d2: add dma properties to UART nodes ARM: at91: pm: cpu_idle: switch DDR to power-down mode iommu/vt-d: Fix NULL pointer dereference in device_to_iommu xen/acpi: upload PM state from init-domain to Xen mmc: sdhci: Do not disable interrupts while waiting for clock ext4: mark inode dirty after converting inline directory parport: fix attempt to write duplicate procfiles iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3 iio: adc: ti_am335x_adc: fix fifo overrun recovery mmc: ushc: fix NULL-deref at probe uwb: hwa-rc: fix NULL-deref at probe uwb: i1480-dfu: fix NULL-deref at probe usb: hub: Fix crash after failure to read BOS descriptor usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer USB: wusbcore: fix NULL-deref at probe USB: idmouse: fix NULL-deref at probe USB: lvtest: fix NULL-deref at probe USB: uss720: fix NULL-deref at probe usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval ACM gadget: fix endianness in notifications USB: serial: qcserial: add Dell DW5811e USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems ALSA: hda - Adding a group of pin definition to fix headset problem ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call ALSA: seq: Fix racy cell insertions during snd_seq_pool_done() Input: sur40 - validate number of endpoints before using them Input: kbtab - validate number of endpoints before using them Input: cm109 - validate number of endpoints before using them Input: yealink - validate number of endpoints before using them Input: hanwang - validate number of endpoints before using them Input: ims-pcu - validate number of endpoints before using them Input: iforce - validate number of endpoints before using them Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000 Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw tcp: initialize icsk_ack.lrcvtime at session start time socket, bpf: fix sk_filter use after free in sk_clone_lock ipv4: provide stronger user input validation in nl_fib_input() net: bcmgenet: remove bcmgenet_internal_phy_setup() net/mlx5e: Count LRO packets correctly net/mlx5: Increase number of max QPs in default profile net: unix: properly re-increment inflight counter of GC discarded candidates amd-xgbe: Fix jumbo MTU processing on newer hardware net: properly release sk_frag.page net: bcmgenet: Do not suspend PHY if Wake-on-LAN is enabled net/openvswitch: Set the ipv6 source tunnel key address attribute correctly Linux 4.4.57 ext4: fix fencepost in s_first_meta_bg validation percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages gfs2: Avoid alignment hole in struct lm_lockname isdn/gigaset: fix NULL-deref at probe target: Fix VERIFY_16 handling in sbc_parse_cdb scsi: libiscsi: add lock around task lists to fix list corruption regression scsi: lpfc: Add shutdown method for kexec target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export md/raid1/10: fix potential deadlock powerpc/boot: Fix zImage TOC alignment cpufreq: Fix and clean up show_cpuinfo_cur_freq() perf/core: Fix event inheritance on fork() give up on gcc ilog2() constant optimizations kernek/fork.c: allocate idle task for a CPU always on its local node hv_netvsc: use skb_get_hash() instead of a homegrown implementation tpm_tis: Use devm_free_irq not free_irq drm/amdgpu: add missing irq.h include s390/pci: fix use after free in dma_init KVM: PPC: Book3S PR: Fix illegal opcode emulation xen/qspinlock: Don't kick CPU if IRQ is not initialized Drivers: hv: avoid vfree() on crash Drivers: hv: balloon: don't crash when memory is added in non-sorted order pinctrl: cherryview: Do not mask all interrupts in probe ACPI / video: skip evaluating _DOD when it does not exist cxlflash: Increase cmd_per_lun for better throughput crypto: mcryptd - Fix load failure crypto: cryptd - Assign statesize properly crypto: ghash-clmulni - Fix load failure USB: don't free bandwidth_mutex too early usb: core: hub: hub_port_init lock controller instead of bus ANDROID: sdcardfs: Fix style issues in macros ANDROID: sdcardfs: Use seq_puts over seq_printf ANDROID: sdcardfs: Use to kstrout ANDROID: sdcardfs: Use pr_[...] instead of printk ANDROID: sdcardfs: remove unneeded null check ANDROID: sdcardfs: Fix style issues with comments ANDROID: sdcardfs: Fix formatting ANDROID: sdcardfs: correct order of descriptors fix the deadlock in xt_qtaguid when enable DDEBUG net: ipv6: Add sysctl for minimum prefix len acceptable in RIOs. Linux 4.4.56 futex: Add missing error handling to FUTEX_REQUEUE_PI futex: Fix potential use-after-free in FUTEX_REQUEUE_PI x86/perf: Fix CR4.PCE propagation to use active_mm instead of mm x86/kasan: Fix boot with KASAN=y and PROFILE_ANNOTATED_BRANCHES=y fscrypto: lock inode while setting encryption policy fscrypt: fix renaming and linking special files net sched actions: decrement module reference count after table flush. dccp: fix memory leak during tear-down of unsuccessful connection request dccp/tcp: fix routing redirect race bridge: drop netfilter fake rtable unconditionally ipv6: avoid write to a possibly cloned skb ipv6: make ECMP route replacement less greedy mpls: Send route delete notifications when router module is unloaded act_connmark: avoid crashing on malformed nlattrs with null parms uapi: fix linux/packet_diag.h userspace compilation error vrf: Fix use-after-free in vrf_xmit dccp: fix use-after-free in dccp_feat_activate_values net: fix socket refcounting in skb_complete_tx_timestamp() net: fix socket refcounting in skb_complete_wifi_ack() tcp: fix various issues for sockets morphing to listen state dccp: Unlock sock before calling sk_free() net: net_enable_timestamp() can be called from irq contexts net: don't call strlen() on the user buffer in packet_bind_spkt() l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv ipv4: mask tos for input route vti6: return GRE_KEY for vti6 vxlan: correctly validate VXLAN ID against VXLAN_N_VID netlink: remove mmapped netlink support ANDROID: mmc: core: export emmc revision BACKPORT: mmc: core: Export device lifetime information through sysfs ANDROID: android-verity: do not compile as independent module ANDROID: sched: fix duplicate sched_group_energy const specifiers config: disable CONFIG_USELIB and CONFIG_FHANDLE ANDROID: power: align wakeup_sources format ANDROID: dm: android-verity: allow disable dm-verity for Treble VTS uid_sys_stats: change to use rt_mutex ANDROID: vfs: user permission2 in notify_change2 ANDROID: sdcardfs: Fix gid issue ANDROID: sdcardfs: Use tabs instead of spaces in multiuser.h ANDROID: sdcardfs: Remove uninformative prints ANDROID: sdcardfs: move path_put outside of spinlock ANDROID: sdcardfs: Use case insensitive hash function ANDROID: sdcardfs: declare MODULE_ALIAS_FS ANDROID: sdcardfs: Get the blocksize from the lower fs ANDROID: sdcardfs: Use d_invalidate instead of drop_recurisve ANDROID: sdcardfs: Switch to internal case insensitive compare ANDROID: sdcardfs: Use spin_lock_nested ANDROID: sdcardfs: Replace get/put with d_lock ANDROID: sdcardfs: rate limit warning print ANDROID: sdcardfs: Fix case insensitive lookup ANDROID: uid_sys_stats: account for fsync syscalls ANDROID: sched: add a counter to track fsync ANDROID: uid_sys_stats: fix negative write bytes. ANDROID: uid_sys_stats: allow writing same state ANDROID: uid_sys_stats: rename uid_cputime.c to uid_sys_stats.c ANDROID: uid_cputime: add per-uid IO usage accounting DTB: Add EAS compatible Juno Energy model to 'juno.dts' arm64: dts: juno: Add idle-states to device tree ANDROID: Replace spaces by '_' for some android filesystem tracepoints. usb: gadget: f_accessory: Fix for UsbAccessory clean unbind. android: binder: move global binder state into context struct. android: binder: add padding to binder_fd_array_object. binder: use group leader instead of open thread nf: IDLETIMER: Use fullsock when querying uid nf: IDLETIMER: Fix use after free condition during work ANDROID: dm: android-verity: fix table_make_digest() error handling ANDROID: usb: gadget: function: Fix commenting style cpufreq: interactive governor drops bits in time calculation ANDROID: sdcardfs: support direct-IO (DIO) operations ANDROID: sdcardfs: implement vm_ops->page_mkwrite ANDROID: sdcardfs: Don't bother deleting freelist ANDROID: sdcardfs: Add missing path_put ANDROID: sdcardfs: Fix incorrect hash ANDROID: ext4 crypto: Disables zeroing on truncation when there's no key ANDROID: ext4: add a non-reversible key derivation method ANDROID: ext4: allow encrypting filenames using HEH algorithm ANDROID: arm64/crypto: add ARMv8-CE optimized poly_hash algorithm ANDROID: crypto: heh - factor out poly_hash algorithm ANDROID: crypto: heh - Add Hash-Encrypt-Hash (HEH) algorithm ANDROID: crypto: gf128mul - Add ble multiplication functions ANDROID: crypto: gf128mul - Refactor gf128 overflow macros and tables UPSTREAM: crypto: gf128mul - Zero memory when freeing multiplication table ANDROID: crypto: shash - Add crypto_grab_shash() and crypto_spawn_shash_alg() ANDROID: crypto: allow blkcipher walks over ablkcipher data UPSTREAM: arm/arm64: crypto: assure that ECB modes don't require an IV ANDROID: Refactor fs readpage/write tracepoints. ANDROID: export security_path_chown Squashfs: optimize reading uncompressed data Squashfs: implement .readpages() Squashfs: replace buffer_head with BIO Squashfs: refactor page_actor Squashfs: remove the FILE_CACHE option ANDROID: android-recommended.cfg: CONFIG_CPU_SW_DOMAIN_PAN=y FROMLIST: 9p: fix a potential acl leak BACKPORT: posix_acl: Clear SGID bit when setting file permissions UPSTREAM: udp: properly support MSG_PEEK with truncated buffers UPSTREAM: arm64: Allow hw watchpoint of length 3,5,6 and 7 BACKPORT: arm64: hw_breakpoint: Handle inexact watchpoint addresses UPSTREAM: arm64: Allow hw watchpoint at varied offset from base address BACKPORT: hw_breakpoint: Allow watchpoint of length 3,5,6 and 7 ANDROID: sdcardfs: Switch strcasecmp for internal call ANDROID: sdcardfs: switch to full_name_hash and qstr ANDROID: sdcardfs: Add GID Derivation to sdcardfs ANDROID: sdcardfs: Remove redundant operation ANDROID: sdcardfs: add support for user permission isolation ANDROID: sdcardfs: Refactor configfs interface ANDROID: sdcardfs: Allow non-owners to touch ANDROID: binder: fix format specifier for type binder_size_t ANDROID: fs: Export vfs_rmdir2 ANDROID: fs: Export free_fs_struct and set_fs_pwd BACKPORT: Input: xpad - validate USB endpoint count during probe BACKPORT: Input: xpad - fix oops when attaching an unknown Xbox One gamepad ANDROID: mnt: remount should propagate to slaves of slaves ANDROID: sdcardfs: Switch ->d_inode to d_inode() ANDROID: sdcardfs: Fix locking issue with permision fix up ANDROID: sdcardfs: Change magic value ANDROID: sdcardfs: Use per mount permissions ANDROID: sdcardfs: Add gid and mask to private mount data ANDROID: sdcardfs: User new permission2 functions ANDROID: vfs: Add setattr2 for filesystems with per mount permissions ANDROID: vfs: Add permission2 for filesystems with per mount permissions ANDROID: vfs: Allow filesystems to access their private mount data ANDROID: mnt: Add filesystem private data to mount points ANDROID: sdcardfs: Move directory unlock before touch ANDROID: sdcardfs: fix external storage exporting incorrect uid ANDROID: sdcardfs: Added top to sdcardfs_inode_info ANDROID: sdcardfs: Switch package list to RCU ANDROID: sdcardfs: Fix locking for permission fix up ANDROID: sdcardfs: Check for other cases on path lookup ANDROID: sdcardfs: override umask on mkdir and create arm64: kernel: Fix build warning DEBUG: sched/fair: Fix sched_load_avg_cpu events for task_groups DEBUG: sched/fair: Fix missing sched_load_avg_cpu events UPSTREAM: l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind() UPSTREAM: packet: fix race condition in packet_set_ring UPSTREAM: netlink: Fix dump skb leak/double free UPSTREAM: net: avoid signed overflows for SO_{SND|RCV}BUFFORCE MIPS: Prevent "restoration" of MSA context in non-MSA kernels net: socket: don't set sk_uid to garbage value in ->setattr() ANDROID: configs: CONFIG_ARM64_SW_TTBR0_PAN=y UPSTREAM: arm64: Disable PAN on uaccess_enable() UPSTREAM: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN UPSTREAM: arm64: xen: Enable user access before a privcmd hvc call UPSTREAM: arm64: Handle faults caused by inadvertent user access with PAN enabled BACKPORT: arm64: Disable TTBR0_EL1 during normal kernel execution BACKPORT: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1 BACKPORT: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro BACKPORT: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros UPSTREAM: arm64: alternative: add auto-nop infrastructure UPSTREAM: arm64: barriers: introduce nops and __nops macros for NOP sequences Revert "FROMLIST: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros" Revert "FROMLIST: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro" Revert "FROMLIST: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1" Revert "FROMLIST: arm64: Disable TTBR0_EL1 during normal kernel execution" Revert "FROMLIST: arm64: Handle faults caused by inadvertent user access with PAN enabled" Revert "FROMLIST: arm64: xen: Enable user access before a privcmd hvc call" Revert "FROMLIST: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN" ANDROID: sched/walt: fix build failure if FAIR_GROUP_SCHED=n ANDROID: trace: net: use %pK for kernel pointers ANDROID: android-base: Enable QUOTA related configs net: ipv4: Don't crash if passing a null sk to ip_rt_update_pmtu. net: inet: Support UID-based routing in IP protocols. net: core: add UID to flows, rules, and routes net: core: Add a UID field to struct sock. Revert "net: core: Support UID-based routing." UPSTREAM: efi/arm64: Don't apply MEMBLOCK_NOMAP to UEFI memory map mapping UPSTREAM: arm64: mm: always take dirty state from new pte in ptep_set_access_flags UPSTREAM: arm64: Implement pmdp_set_access_flags() for hardware AF/DBM UPSTREAM: arm64: Fix typo in the pmdp_huge_get_and_clear() definition UPSTREAM: arm64: enable CONFIG_DEBUG_RODATA by default goldfish: enable CONFIG_INET_DIAG_DESTROY sched/walt: kill {min,max}_capacity sched: fix wrong truncation of walt_avg build: fix build config kernel_dir ANDROID: dm verity: add minimum prefetch size build: add build server configs for goldfish usb: gadget: Fix compilation problem with tx_qlen field Conflicts: android/configs/android-base.cfg arch/arm64/Makefile arch/arm64/include/asm/cpufeature.h arch/arm64/kernel/vdso/gettimeofday.S arch/arm64/mm/cache.S drivers/md/Kconfig drivers/misc/Makefile drivers/mmc/host/sdhci.c drivers/usb/core/hcd.c drivers/usb/gadget/function/u_ether.c fs/sdcardfs/derived_perm.c fs/sdcardfs/file.c fs/sdcardfs/inode.c fs/sdcardfs/lookup.c fs/sdcardfs/main.c fs/sdcardfs/multiuser.h fs/sdcardfs/packagelist.c fs/sdcardfs/sdcardfs.h fs/sdcardfs/super.c include/linux/mmc/card.h include/linux/mmc/mmc.h include/trace/events/android_fs.h include/trace/events/android_fs_template.h drivers/android/binder.c fs/exec.c fs/ext4/crypto_key.c fs/ext4/ext4.h fs/ext4/inline.c fs/ext4/inode.c fs/ext4/readpage.c fs/f2fs/data.c fs/f2fs/inline.c fs/mpage.c include/linux/dcache.h include/trace/events/sched.h include/uapi/linux/ipv6.h net/ipv4/tcp_ipv4.c net/netfilter/xt_IDLETIMER.c Change-Id: Ie345db6a14869fe0aa794aef4b71b5d0d503690b Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-04-06Merge 4.4.59 into android-4.4Greg Kroah-Hartman
Changes in 4.4.59: xfrm: policy: init locks early xfrm_user: validate XFRM_MSG_NEWAE XFRMA_REPLAY_ESN_VAL replay_window xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size harder virtio_balloon: init 1st buffer in stats vq pinctrl: qcom: Don't clear status bit on irq_unmask c6x/ptrace: Remove useless PTRACE_SETREGSET implementation h8300/ptrace: Fix incorrect register transfer count mips/ptrace: Preserve previous registers for short regset write sparc/ptrace: Preserve previous registers for short regset write metag/ptrace: Preserve previous registers for short regset write metag/ptrace: Provide default TXSTATUS for short NT_PRSTATUS metag/ptrace: Reject partial NT_METAG_RPIPE writes fscrypt: remove broken support for detecting keyring key revocation sched/rt: Add a missing rescheduling point Linux 4.4.59 Change-Id: Ifa35307b133cbf29d0a0084bb78a7b0436182b53 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2017-03-31virtio_balloon: init 1st buffer in stats vqLadi Prosek
commit fc8653228c8588a120f6b5dad6983b7b61ff669e upstream. When init_vqs runs, virtio_balloon.stats is either uninitialized or contains stale values. The host updates its state with garbage data because it has no way of knowing that this is just a marker buffer used for signaling. This patch updates the stats before pushing the initial buffer. Alternative fixes: * Push an empty buffer in init_vqs. Not easily done with the current virtio implementation and violates the spec "Driver MUST supply the same subset of statistics in all buffers submitted to the statsq". * Push a buffer with invalid tags in init_vqs. Violates the same spec clause, plus "invalid tag" is not really defined. Note: the spec says: When using the legacy interface, the device SHOULD ignore all values in the first buffer in the statsq supplied by the driver after device initialization. Note: Historically, drivers supplied an uninitialized buffer in the first buffer. Unfortunately QEMU does not seem to implement the recommendation even for the legacy interface. Signed-off-by: Ladi Prosek <lprosek@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-28Merge tag 'lsk-v4.4-16.12-android' into branch 'msm-4.4'Runmin Wang
* remotes/origin/tmp-2f0de51: Linux 4.4.38 esp6: Fix integrity verification when ESN are used esp4: Fix integrity verification when ESN are used ipv4: Set skb->protocol properly for local output ipv6: Set skb->protocol properly for local output Don't feed anything but regular iovec's to blk_rq_map_user_iov constify iov_iter_count() and iter_is_iovec() sparc64: fix compile warning section mismatch in find_node() sparc64: Fix find_node warning if numa node cannot be found sparc32: Fix inverted invalid_frame_pointer checks on sigreturns net: ping: check minimum size on ICMP header length net: avoid signed overflows for SO_{SND|RCV}BUFFORCE geneve: avoid use-after-free of skb->data sh_eth: remove unchecked interrupts for RZ/A1 net: bcmgenet: Utilize correct struct device for all DMA operations packet: fix race condition in packet_set_ring net/dccp: fix use-after-free in dccp_invalid_packet netlink: Do not schedule work from sk_destruct netlink: Call cb->done from a worker thread net/sched: pedit: make sure that offset is valid net, sched: respect rcu grace period on cls destruction net: dsa: bcm_sf2: Ensure we re-negotiate EEE during after link change l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind() rtnetlink: fix FDB size computation af_unix: conditionally use freezable blocking calls in read net: sky2: Fix shutdown crash ip6_tunnel: disable caching when the traffic class is inherited net: check dead netns for peernet2id_alloc() virtio-net: add a missing synchronize_net() Linux 4.4.37 arm64: suspend: Reconfigure PSTATE after resume from idle arm64: mm: Set PSTATE.PAN from the cpu_enable_pan() call arm64: cpufeature: Schedule enable() calls instead of calling them via IPI pwm: Fix device reference leak mwifiex: printk() overflow with 32-byte SSIDs PCI: Set Read Completion Boundary to 128 iff Root Port supports it (_HPX) PCI: Export pcie_find_root_port rcu: Fix soft lockup for rcu_nocb_kthread ALSA: pcm : Call kill_fasync() in stream lock x86/traps: Ignore high word of regs->cs in early_fixup_exception() kasan: update kasan_global for gcc 7 zram: fix unbalanced idr management at hot removal ARC: Don't use "+l" inline asm constraint Linux 4.4.36 scsi: mpt3sas: Unblock device after controller reset flow_dissect: call init_default_flow_dissectors() earlier mei: fix return value on disconnection mei: me: fix place for kaby point device ids. mei: me: disable driver on SPT SPS firmware drm/radeon: Ensure vblank interrupt is enabled on DPMS transition to on mpi: Fix NULL ptr dereference in mpi_powm() [ver #3] parisc: Also flush data TLB in flush_icache_page_asm parisc: Fix race in pci-dma.c parisc: Fix races in parisc_setup_cache_timing() NFSv4.x: hide array-bounds warning apparmor: fix change_hat not finding hat after policy replacement cfg80211: limit scan results cache size tile: avoid using clocksource_cyc2ns with absolute cycle count scsi: mpt3sas: Fix secure erase premature termination Fix USB CB/CBI storage devices with CONFIG_VMAP_STACK=y USB: serial: ftdi_sio: add support for TI CC3200 LaunchPad USB: serial: cp210x: add ID for the Zone DPMX usb: chipidea: move the lock initialization to core file KVM: x86: check for pic and ioapic presence before use KVM: x86: drop error recovery in em_jmp_far and em_ret_far iommu/vt-d: Fix IOMMU lookup for SR-IOV Virtual Functions iommu/vt-d: Fix PASID table allocation sched: tune: Fix lacking spinlock initialization UPSTREAM: trace: Update documentation for mono, mono_raw and boot clock UPSTREAM: trace: Add an option for boot clock as trace clock UPSTREAM: timekeeping: Add a fast and NMI safe boot clock ANDROID: goldfish_pipe: fix allmodconfig build ANDROID: goldfish: goldfish_pipe: fix locking errors ANDROID: video: goldfishfb: fix platform_no_drv_owner.cocci warnings ANDROID: goldfish_pipe: fix call_kern.cocci warnings arm64: rename ranchu defconfig to ranchu64 ANDROID: arch: x86: disable pic for Android toolchain ANDROID: goldfish_pipe: An implementation of more parallel pipe ANDROID: goldfish_pipe: bugfixes and performance improvements. ANDROID: goldfish: Add goldfish sync driver ANDROID: goldfish: add ranchu defconfigs ANDROID: goldfish_audio: Clear audio read buffer status after each read ANDROID: goldfish_events: no extra EV_SYN; register goldfish ANDROID: goldfish_fb: Set pixclock = 0 ANDROID: goldfish: Enable ACPI-based enumeration for goldfish audio ANDROID: goldfish: Enable ACPI-based enumeration for goldfish framebuffer ANDROID: video: goldfishfb: add devicetree bindings BACKPORT: staging: goldfish: audio: fix compiliation on arm BACKPORT: Input: goldfish_events - enable ACPI-based enumeration for goldfish events BACKPORT: goldfish: Enable ACPI-based enumeration for goldfish battery BACKPORT: drivers: tty: goldfish: Add device tree bindings BACKPORT: tty: goldfish: support platform_device with id -1 BACKPORT: Input: goldfish_events - add devicetree bindings BACKPORT: power: goldfish_battery: add devicetree bindings BACKPORT: staging: goldfish: audio: add devicetree bindings ANDROID: usb: gadget: function: cleanup: Add blank line after declaration cpufreq: sched: Fix kernel crash on accessing sysfs file usb: gadget: f_mtp: simplify ptp NULL pointer check cgroup: replace unified-hierarchy.txt with a proper cgroup v2 documentation cgroup: rename Documentation/cgroups/ to Documentation/cgroup-legacy/ cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type writeback: initialize inode members that track writeback history mm: page_alloc: generalize the dirty balance reserve block: fix module reference leak on put_disk() call for cgroups throttle Linux 4.4.35 netfilter: nft_dynset: fix element timeout for HZ != 1000 IB/cm: Mark stale CM id's whenever the mad agent was unregistered IB/uverbs: Fix leak of XRC target QPs IB/core: Avoid unsigned int overflow in sg_alloc_table IB/mlx5: Fix fatal error dispatching IB/mlx5: Use cache line size to select CQE stride IB/mlx4: Fix create CQ error flow IB/mlx4: Check gid_index return value PM / sleep: don't suspend parent when async child suspend_{noirq, late} fails PM / sleep: fix device reference leak in test_suspend uwb: fix device reference leaks mfd: core: Fix device reference leak in mfd_clone_cell iwlwifi: pcie: fix SPLC structure parsing rtc: omap: Fix selecting external osc clk: mmp: mmp2: fix return value check in mmp2_clk_init() clk: mmp: pxa168: fix return value check in pxa168_clk_init() clk: mmp: pxa910: fix return value check in pxa910_clk_init() drm/amdgpu: Attach exclusive fence to prime exported bo's. (v5) crypto: caam - do not register AES-XTS mode on LP units ext4: sanity check the block and cluster size at mount time kbuild: Steal gcc's pie from the very beginning x86/kexec: add -fno-PIE scripts/has-stack-protector: add -fno-PIE kbuild: add -fno-PIE i2c: mux: fix up dependencies can: bcm: fix warning in bcm_connect/proc_register mfd: intel-lpss: Do not put device in reset state on suspend fuse: fix fuse_write_end() if zero bytes were copied KVM: Disable irq while unregistering user notifier KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr x86/cpu/AMD: Fix cpu_llc_id for AMD Fam17h systems Linux 4.4.34 sparc64: Delete now unused user copy fixup functions. sparc64: Delete now unused user copy assembler helpers. sparc64: Convert U3copy_{from,to}_user to accurate exception reporting. sparc64: Convert NG2copy_{from,to}_user to accurate exception reporting. sparc64: Convert NGcopy_{from,to}_user to accurate exception reporting. sparc64: Convert NG4copy_{from,to}_user to accurate exception reporting. sparc64: Convert U1copy_{from,to}_user to accurate exception reporting. sparc64: Convert GENcopy_{from,to}_user to accurate exception reporting. sparc64: Convert copy_in_user to accurate exception reporting. sparc64: Prepare to move to more saner user copy exception handling. sparc64: Delete __ret_efault. sparc64: Handle extremely large kernel TLB range flushes more gracefully. sparc64: Fix illegal relative branches in hypervisor patched TLB cross-call code. sparc64: Fix instruction count in comment for __hypervisor_flush_tlb_pending. sparc64: Fix illegal relative branches in hypervisor patched TLB code. sparc64: Handle extremely large kernel TSB range flushes sanely. sparc: Handle negative offsets in arch_jump_label_transform sparc64 mm: Fix base TSB sizing when hugetlb pages are used sparc: serial: sunhv: fix a double lock bug sparc: Don't leak context bits into thread->fault_address tty: Prevent ldisc drivers from re-using stale tty fields tcp: take care of truncations done by sk_filter() ipv4: use new_gw for redirect neigh lookup net: __skb_flow_dissect() must cap its return value sock: fix sendmmsg for partial sendmsg fib_trie: Correct /proc/net/route off by one error sctp: assign assoc_id earlier in __sctp_connect ipv6: dccp: add missing bind_conflict to dccp_ipv6_mapped ipv6: dccp: fix out of bound access in dccp_v6_err() dccp: fix out of bound access in dccp_v4_err() dccp: do not send reset to already closed sockets tcp: fix potential memory corruption ip6_tunnel: Clear IP6CB in ip6tunnel_xmit() bgmac: stop clearing DMA receive control register right after it is set net: mangle zero checksum in skb_checksum_help() net: clear sk_err_soft in sk_clone_lock() dctcp: avoid bogus doubling of cwnd after loss ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook Linux 4.4.33 netfilter: fix namespace handling in nf_log_proc_dostring btrfs: qgroup: Prevent qgroup->reserved from going subzero mmc: mxs: Initialize the spinlock prior to using it ASoC: sun4i-codec: return error code instead of NULL when create_card fails ACPI / APEI: Fix incorrect return value of ghes_proc() i40e: fix call of ndo_dflt_bridge_getlink() hwrng: core - Don't use a stack buffer in add_early_randomness() lib/genalloc.c: start search from start of chunk mei: bus: fix received data size check in NFC fixup iommu/vt-d: Fix dead-locks in disable_dmar_iommu() path iommu/amd: Free domain id when free a domain of struct dma_ops_domain tty/serial: at91: fix hardware handshake on Atmel platforms dmaengine: at_xdmac: fix spurious flag status for mem2mem transfers drm/i915: Respect alternate_ddc_pin for all DDI ports KVM: MIPS: Precalculate MMIO load resume PC scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk scsi: qla2xxx: Fix scsi scan hang triggered if adapter fails during init iio: orientation: hid-sensor-rotation: Add PM function (fix non working driver) iio: hid-sensors: Increase the precision of scale to fix wrong reading interpretation. clk: qoriq: Don't allow CPU clocks higher than starting value toshiba-wmi: Fix loading the driver on non Toshiba laptops drbd: Fix kernel_sendmsg() usage - potential NULL deref usb: gadget: u_ether: remove interrupt throttling USB: cdc-acm: fix TIOCMIWAIT staging: nvec: remove managed resource from PS2 driver Revert "staging: nvec: ps2: change serio type to passthrough" drivers: staging: nvec: remove bogus reset command for PS/2 interface staging: iio: ad5933: avoid uninitialized variable in error case pinctrl: cherryview: Prevent possible interrupt storm on resume pinctrl: cherryview: Serialize register access in suspend/resume ARC: timer: rtc: implement read loop in "C" vs. inline asm s390/hypfs: Use get_free_page() instead of kmalloc to ensure page alignment coredump: fix unfreezable coredumping task swapfile: fix memory corruption via malformed swapfile dib0700: fix nec repeat handling ASoC: cs4270: fix DAPM stream name mismatch ALSA: info: Limit the proc text input size ALSA: info: Return error for invalid read/write arm64: Enable KPROBES/HIBERNATION/CORESIGHT in defconfig arm64: kvm: allows kvm cpu hotplug arm64: KVM: Register CPU notifiers when the kernel runs at HYP arm64: KVM: Skip HYP setup when already running in HYP arm64: hyp/kvm: Make hyp-stub reject kvm_call_hyp() arm64: hyp/kvm: Make hyp-stub extensible arm64: kvm: Move lr save/restore from do_el2_call into EL1 arm64: kvm: deal with kernel symbols outside of linear mapping arm64: introduce KIMAGE_VADDR as the virtual base of the kernel region ANDROID: video: adf: Avoid directly referencing user pointers ANDROID: usb: gadget: audio_source: fix comparison of distinct pointer types android: binder: support for file-descriptor arrays. android: binder: support for scatter-gather. android: binder: add extra size to allocator. android: binder: refactor binder_transact() android: binder: support multiple /dev instances. android: binder: deal with contexts in debugfs. android: binder: support multiple context managers. android: binder: split flat_binder_object. disable aio support in recommended configuration Linux 4.4.32 scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression drm/radeon: fix DP mode validation drm/radeon/dp: add back special handling for NUTMEG drm/amdgpu: fix DP mode validation drm/amdgpu/dp: add back special handling for NUTMEG KVM: MIPS: Drop other CPU ASIDs on guest MMU changes Revert KVM: MIPS: Drop other CPU ASIDs on guest MMU changes of: silence warnings due to max() usage packet: on direct_xmit, limit tso and csum to supported devices sctp: validate chunk len before actually using it net sched filters: fix notification of filter delete with proper handle udp: fix IP_CHECKSUM handling net: sctp, forbid negative length ipv4: use the right lock for ping_group_range ipv4: disable BH in set_ping_group_range() net: add recursion limit to GRO rtnetlink: Add rtnexthop offload flag to compare mask bridge: multicast: restore perm router ports on multicast enable net: pktgen: remove rcu locking in pktgen_change_name() ipv6: correctly add local routes when lo goes up ip6_tunnel: fix ip6_tnl_lookup ipv6: tcp: restore IP6CB for pktoptions skbs netlink: do not enter direct reclaim from netlink_dump() packet: call fanout_release, while UNREGISTERING a netdev net: Add netdev all_adj_list refcnt propagation to fix panic net/sched: act_vlan: Push skb->data to mac_header prior calling skb_vlan_*() functions net: pktgen: fix pkt_size net: fec: set mac address unconditionally tg3: Avoid NULL pointer dereference in tg3_io_error_detected() ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route ip6_gre: fix flowi6_proto value in ip6gre_xmit_other() tcp: fix a compile error in DBGUNDO() tcp: fix wrong checksum calculation on MTU probing net: avoid sk_forward_alloc overflows tcp: fix overflow in __tcp_retransmit_skb() arm64/kvm: fix build issue on kvm debug arm64: ptdump: Indicate whether memory should be faulting arm64: Add support for ARCH_SUPPORTS_DEBUG_PAGEALLOC arm64: Drop alloc function from create_mapping arm64: allow vmalloc regions to be set with set_memory_* arm64: kernel: implement ACPI parking protocol arm64: mm: create new fine-grained mappings at boot arm64: ensure _stext and _etext are page-aligned arm64: mm: allow passing a pgdir to alloc_init_* arm64: mm: allocate pagetables anywhere arm64: mm: use fixmap when creating page tables arm64: mm: add functions to walk tables in fixmap arm64: mm: add __{pud,pgd}_populate arm64: mm: avoid redundant __pa(__va(x)) Linux 4.4.31 HID: usbhid: add ATEN CS962 to list of quirky devices ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap() kvm: x86: Check memopp before dereference (CVE-2016-8630) tty: vt, fix bogus division in csi_J usb: dwc3: Fix size used in dma_free_coherent() pwm: Unexport children before chip removal UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header Disable "frame-address" warning smc91x: avoid self-comparison warning cgroup: avoid false positive gcc-6 warning drm/exynos: fix error handling in exynos_drm_subdrv_open mm/cma: silence warnings due to max() usage ARM: 8584/1: floppy: avoid gcc-6 warning powerpc/ptrace: Fix out of bounds array access warning x86/xen: fix upper bound of pmd loop in xen_cleanhighmap() perf build: Fix traceevent plugins build race drm/dp/mst: Check peer device type before attempting EDID read drm/radeon: drop register readback in cayman_cp_int_cntl_setup drm/radeon/si_dpm: workaround for SI kickers drm/radeon/si_dpm: Limit clocks on HD86xx part Revert "drm/radeon: fix DP link training issue with second 4K monitor" mmc: dw_mmc-pltfm: fix the potential NULL pointer dereference scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware scsi: scsi_debug: Fix memory leak if LBP enabled and module is unloaded scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices mac80211: discard multicast and 4-addr A-MSDUs firewire: net: fix fragmented datagram_size off-by-one firewire: net: guard against rx buffer overflows Input: i8042 - add XMG C504 to keyboard reset table dm mirror: fix read error on recovery after default leg failure virtio: console: Unlock vqs while freeing buffers virtio_ring: Make interrupt suppression spec compliant parisc: Ensure consistent state when switching to kernel stack at syscall entry ovl: fsync after copy-up KVM: MIPS: Make ERET handle ERL before EXL KVM: x86: fix wbinvd_dirty_mask use-after-free dm: free io_barrier after blk_cleanup_queue call USB: serial: cp210x: fix tiocmget error handling tty: limit terminal size to 4M chars xhci: add restart quirk for Intel Wildcatpoint PCH hv: do not lose pending heartbeat vmbus packets vt: clear selection before resizing Fix potential infoleak in older kernels GenWQE: Fix bad page access during abort of resource allocation usb: increase ohci watchdog delay to 275 msec xhci: use default USB_RESUME_TIMEOUT when resuming ports. USB: serial: ftdi_sio: add support for Infineon TriBoard TC2X7 USB: serial: fix potential NULL-dereference at probe usb: gadget: function: u_ether: don't starve tx request queue mei: txe: don't clean an unprocessed interrupt cause. ubifs: Fix regression in ubifs_readdir() ubifs: Abort readdir upon error btrfs: fix races on root_log_ctx lists ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct ANDROID: binder: Add strong ref checks ALSA: hda - Fix headset mic detection problem for two Dell laptops ALSA: hda - Adding a new group of pin cfg into ALC295 pin quirk table ALSA: hda - allow 40 bit DMA mask for NVidia devices ALSA: hda - Raise AZX_DCAPS_RIRB_DELAY handling into top drivers ALSA: hda - Merge RIRB_PRE_DELAY into CTX_WORKAROUND caps ALSA: usb-audio: Add quirk for Syntek STK1160 KEYS: Fix short sprintf buffer in /proc/keys show function mm: memcontrol: do not recurse in direct reclaim mm/list_lru.c: avoid error-path NULL pointer deref libxfs: clean up _calc_dquots_per_chunk h8300: fix syscall restarting drm/dp/mst: Clear port->pdt when tearing down the i2c adapter i2c: core: fix NULL pointer dereference under race condition i2c: xgene: Avoid dma_buffer overrun arm64:cpufeature ARM64_NCAPS is the indicator of last feature arm64: hibernate: Refuse to hibernate if the boot cpu is offline PM / sleep: Add support for read-only sysfs attributes arm64: kernel: Add support for hibernate/suspend-to-disk arm64: mm: add functions to walk page tables by PA arm64: mm: move pte_* macros PM / Hibernate: Call flush_icache_range() on pages restored in-place arm64: Add new asm macro copy_page arm64: Promote KERNEL_START/KERNEL_END definitions to a header file arm64: kernel: Include _AC definition in page.h arm64: Change cpu_resume() to enable mmu early then access sleep_sp by va arm64: kernel: Rework finisher callback out of __cpu_suspend_enter() arm64: Cleanup SCTLR flags arm64: Fold proc-macros.S into assembler.h arm/arm64: KVM: Add hook for C-based stage2 init arm/arm64: KVM: Detect vGIC presence at runtime arm64: KVM: Add support for 16-bit VMID arm: KVM: Make kvm_arm.h friendly to assembly code arm/arm64: KVM: Remove unreferenced S2_PGD_ORDER arm64: KVM: debug: Remove spurious inline attributes ARM: KVM: Cleanup exception injection arm64: KVM: Remove weak attributes arm64: KVM: Cleanup asm-offset.c arm64: KVM: Turn system register numbers to an enum arm64: KVM: VHE: Patch out use of HVC arm64: Add ARM64_HAS_VIRT_HOST_EXTN feature arm/arm64: Add new is_kernel_in_hyp_mode predicate arm64: KVM: Move away from the assembly version of the world switch arm64: KVM: Map the kernel RO section into HYP arm64: KVM: Add compatibility aliases arm64: KVM: Implement vgic-v3 save/restore arm64: KVM: Add panic handling arm64: KVM: HYP mode entry points arm64: KVM: Implement TLB handling arm64: KVM: Implement fpsimd save/restore arm64: KVM: Implement the core world switch arm64: KVM: Add patchable function selector arm64: KVM: Implement guest entry arm64: KVM: Implement debug save/restore arm64: KVM: Implement 32bit system register save/restore arm64: KVM: Implement system register save/restore arm64: KVM: Implement timer save/restore arm64: KVM: Implement vgic-v2 save/restore arm64: KVM: Add a HYP-specific header file KVM: arm/arm64: vgic-v3: Make the LR indexing macro public arm64: Add macros to read/write system registers Linux 4.4.30 Revert "fix minor infoleak in get_user_ex()" Revert "x86/mm: Expand the exception table logic to allow new handling options" Linux 4.4.29 ARM: pxa: pxa_cplds: fix interrupt handling powerpc/nvram: Fix an incorrect partition merge mpt3sas: Don't spam logs if logging level is 0 perf symbols: Fixup symbol sizes before picking best ones perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too perf hists browser: Fix event group display clk: divider: Fix clk_divider_round_rate() to use clk_readl() clk: qoriq: fix a register offset error s390/con3270: fix insufficient space padding s390/con3270: fix use of uninitialised data s390/cio: fix accidental interrupt enabling during resume x86/mm: Expand the exception table logic to allow new handling options dmaengine: ipu: remove bogus NO_IRQ reference power: bq24257: Fix use of uninitialized pointer bq->charger staging: r8188eu: Fix scheduling while atomic splat ASoC: dapm: Fix kcontrol creation for output driver widget ASoC: dapm: Fix value setting for _ENUM_DOUBLE MUX's second channel ASoC: dapm: Fix possible uninitialized variable in snd_soc_dapm_get_volsw() ASoC: topology: Fix error return code in soc_tplg_dapm_widget_create() hwrng: omap - Only fail if pm_runtime_get_sync returns < 0 crypto: arm/ghash-ce - add missing async import/export crypto: gcm - Fix IV buffer size in crypto_gcm_setkey mwifiex: correct aid value during tdls setup spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function ARM: clk-imx35: fix name for ckil clk uio: fix dmem_region_start computation genirq/generic_chip: Add irq_unmap callback perf stat: Fix interval output values powerpc/eeh: Null check uses of eeh_pe_bus_get tunnels: Remove encapsulation offloads on decap. tunnels: Don't apply GRO to multiple layers of encapsulation. ipip: Properly mark ipip GRO packets as encapsulated. posix_acl: Clear SGID bit when setting file permissions brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap() mm/hugetlb: fix memory offline with hugepage size > memory block size drm/i915: Unalias obj->phys_handle and obj->userptr drm/i915: Account for TSEG size when determining 865G stolen base Revert "drm/i915: Check live status before reading edid" drm/i915/gen9: fix the WaWmMemoryReadLatency implementation xenbus: don't look up transaction IDs for ordinary writes drm/vmwgfx: Limit the user-space command buffer size drm/radeon: change vblank_time's calculation method to reduce computational error. drm/radeon/si/dpm: fix phase shedding setup drm/radeon: narrow asic_init for virtualization drm/amdgpu: change vblank_time's calculation method to reduce computational error. drm/amdgpu/dce11: add missing drm_mode_config_cleanup call drm/amdgpu/dce11: disable hpd on local panels drm/amdgpu/dce8: disable hpd on local panels drm/amdgpu/dce10: disable hpd on local panels drm/amdgpu: fix IB alignment for UVD drm/prime: Pass the right module owner through to dma_buf_export() Linux 4.4.28 target: Don't override EXTENDED_COPY xcopy_pt_cmd SCSI status code target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE target: Re-add missing SCF_ACK_KREF assignment in v4.1.y ubifs: Fix xattr_names length in exit paths jbd2: fix incorrect unlock on j_list_lock ext4: do not advertise encryption support when disabled mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led mmc: rtsx_usb_sdmmc: Avoid keeping the device runtime resumed when unused mmc: core: Annotate cmd_hdr as __le32 powerpc/mm: Prevent unlikely crash in copro_calculate_slb() ceph: fix error handling in ceph_read_iter arm64: kernel: Init MDCR_EL2 even in the absence of a PMU arm64: percpu: rewrite ll/sc loops in assembly memstick: rtsx_usb_ms: Manage runtime PM when accessing the device memstick: rtsx_usb_ms: Runtime resume the device when polling for cards isofs: Do not return EACCES for unknown filesystems irqchip/gic-v3-its: Fix entry size mask for GITS_BASER s390/mm: fix gmap tlb flush issues Using BUG_ON() as an assert() is _never_ acceptable mm: filemap: fix mapping->nrpages double accounting in fuse mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page() acpi, nfit: check for the correct event code in notifications net/mlx4_core: Allow resetting VF admin mac to zero bnx2x: Prevent false warning for lack of FC NPIV PKCS#7: Don't require SpcSpOpusInfo in Authenticode pkcs7 signatures hpsa: correct skipping masked peripherals sd: Fix rw_max for devices that report an optimal xfer size irqchip/gicv3: Handle loop timeout proper kvm: x86: memset whole irq_eoi x86/e820: Don't merge consecutive E820_PRAM ranges blkcg: Unlock blkcg_pol_mutex only once when cpd == NULL Fix regression which breaks DFS mounting Cleanup missing frees on some ioctls Do not send SMB3 SET_INFO request if nothing is changing SMB3: GUIDs should be constructed as random but valid uuids Set previous session id correctly on SMB3 reconnect Display number of credits available Clarify locking of cifs file and tcon structures and make more granular fs/cifs: keep guid when assigning fid to fileinfo cifs: Limit the overall credit acquired fs/super.c: fix race between freeze_super() and thaw_super() arc: don't leak bits of kernel stack into coredump lightnvm: ensure that nvm_dev_ops can be used without CONFIG_NVM ipc/sem.c: fix complex_count vs. simple op race mm: filemap: don't plant shadow entries without radix tree node metag: Only define atomic_dec_if_positive conditionally scsi: Fix use-after-free NFSv4.2: Fix a reference leak in nfs42_proc_layoutstats_generic NFSv4: Open state recovery must account for file permission changes NFSv4: nfs4_copy_delegation_stateid() must fail if the delegation is invalid NFSv4: Don't report revoked delegations as valid in nfs_have_delegation() sunrpc: fix write space race causing stalls Input: elantech - add Fujitsu Lifebook E556 to force crc_enabled Input: elantech - force needed quirks on Fujitsu H760 Input: i8042 - skip selftest on ASUS laptops lib: add "on"/"off" support to kstrtobool lib: update single-char callers of strtobool() lib: move strtobool() to kstrtobool() MIPS: ptrace: Fix regs_return_value for kernel context MIPS: Fix -mabi=64 build of vdso.lds ALSA: hda - Fix a failure of micmute led when having multi adcs cx231xx: fix GPIOs for Pixelview SBTVD hybrid cx231xx: don't return error on success mb86a20s: fix demod settings mb86a20s: fix the locking logic ovl: copy_up_xattr(): use strnlen ovl: Fix info leak in ovl_lookup_temp() fbdev/efifb: Fix 16 color palette entry calculation scsi: zfcp: spin_lock_irqsave() is not nestable zfcp: trace full payload of all SAN records (req,resp,iels) zfcp: fix payload trace length for SAN request&response zfcp: fix D_ID field with actual value on tracing SAN responses zfcp: restore tracing of handle for port and LUN with HBA records zfcp: trace on request for open and close of WKA port zfcp: restore: Dont use 0 to indicate invalid LUN in rec trace zfcp: retain trace level for SCSI and HBA FSF response records zfcp: close window with unblocked rport during rport gone zfcp: fix ELS/GS request&response length for hardware data router zfcp: fix fc_host port_type with NPIV ubi: Deal with interrupted erasures in WL powerpc/pseries: Fix stack corruption in htpe code powerpc/64: Fix incorrect return value from __copy_tofrom_user powerpc/powernv: Use CPU-endian PEST in pnv_pci_dump_p7ioc_diag_data() powerpc/powernv: Use CPU-endian hub diag-data type in pnv_eeh_get_and_dump_hub_diag() powerpc/powernv: Pass CPU-endian PE number to opal_pci_eeh_freeze_clear() powerpc/vdso64: Use double word compare on pointers dm crypt: fix crash on exit dm mpath: check if path's request_queue is dying in activate_path() dm: return correct error code in dm_resume()'s retry loop dm: mark request_queue dead before destroying the DM device perf intel-pt: Fix MTC timestamp calculation for large MTC periods perf intel-pt: Fix estimated timestamps for cycle-accurate mode perf intel-pt: Fix snapshot overlap detection decoder errors pstore/ram: Use memcpy_fromio() to save old buffer pstore/ram: Use memcpy_toio instead of memcpy pstore/core: drop cmpxchg based updates pstore/ramoops: fixup driver removal parisc: Increase initial kernel mapping size parisc: Fix kernel memory layout regarding position of __gp parisc: Increase KERNEL_INITIAL_SIZE for 32-bit SMP kernels cpufreq: intel_pstate: Fix unsafe HWP MSR access platform: don't return 0 from platform_get_irq[_byname]() on error PCI: Mark Atheros AR9580 to avoid bus reset mmc: sdhci: cast unsigned int to unsigned long long to avoid unexpeted error mmc: block: don't use CMD23 with very old MMC cards rtlwifi: Fix missing country code for Great Britain PM / devfreq: event: remove duplicate devfreq_event_get_drvdata() clk: imx6: initialize GPU clocks regulator: tps65910: Work around silicon erratum SWCZ010 mei: me: add kaby point device ids gpio: mpc8xxx: Correct irq handler function cgroup: Change from CAP_SYS_NICE to CAP_SYS_RESOURCE for cgroup migration permissions UPSTREAM: cpu/hotplug: Handle unbalanced hotplug enable/disable UPSTREAM: arm64: kaslr: fix breakage with CONFIG_MODVERSIONS=y UPSTREAM: arm64: kaslr: keep modules close to the kernel when DYNAMIC_FTRACE=y cgroup: Remove leftover instances of allow_attach BACKPORT: lib: harden strncpy_from_user CHROMIUM: cgroups: relax permissions on moving tasks between cgroups CHROMIUM: remove Android's cgroup generic permissions checks Linux 4.4.27 cfq: fix starvation of asynchronous writes vfs: move permission checking into notify_change() for utimes(NULL) dlm: free workqueues after the connections crypto: vmx - Fix memory corruption caused by p8_ghash crypto: ghash-generic - move common definitions to a new header file ext4: release bh in make_indexed_dir ext4: allow DAX writeback for hole punch ext4: fix memory leak in ext4_insert_range() ext4: reinforce check of i_dtime when clearing high fields of uid and gid ext4: enforce online defrag restriction for encrypted files scsi: ibmvfc: Fix I/O hang when port is not mapped scsi: arcmsr: Simplify user_len checking scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer() async_pq_val: fix DMA memory leak reiserfs: switch to generic_{get,set,remove}xattr() reiserfs: Unlock superblock before calling reiserfs_quota_on_mount() ASoC: Intel: Atom: add a missing star in a memcpy call brcmfmac: fix memory leak in brcmf_fill_bss_param i40e: avoid NULL pointer dereference and recursive errors on early PCI error fuse: fix killing s[ug]id in setattr fuse: invalidate dir dentry after chmod fuse: listxattr: verify xattr list drivers: base: dma-mapping: page align the size when unmap_kernel_range btrfs: assign error values to the correct bio structs serial: 8250_dw: Check the data->pclk when get apb_pclk arm64: Use PoU cache instr for I/D coherency arm64: mm: add code to safely replace TTBR1_EL1 arm64: mm: place __cpu_setup in .text arm64: add function to install the idmap arm64: unmap idmap earlier arm64: unify idmap removal arm64: mm: place empty_zero_page in bss arm64: head.S: use memset to clear BSS arm64: mm: specialise pagetable allocators arm64: mm: remove pointless PAGE_MASKing asm-generic: Fix local variable shadow in __set_fixmap_offset arm64: mm: fold alternatives into .init ARM: 8511/1: ARM64: kernel: PSCI: move PSCI idle management code to drivers/firmware ARM: 8481/2: drivers: psci: replace psci firmware calls ARM: 8480/2: arm64: add implementation for arm-smccc ARM: 8479/2: add implementation for arm-smccc ARM: 8478/2: arm/arm64: add arm-smccc ARM: 8510/1: rework ARM_CPU_SUSPEND dependencies ARM: 8458/1: bL_switcher: add GIC dependency Linux 4.4.26 mm: remove gup_flags FOLL_WRITE games from __get_user_pages() x86/build: Build compressed x86 kernels as PIE arm64: Remove stack duplicating code from jprobes arm64: kprobes: Add KASAN instrumentation around stack accesses arm64: kprobes: Cleanup jprobe_return arm64: kprobes: Fix overflow when saving stack arm64: kprobes: WARN if attempting to step with PSTATE.D=1 kprobes: Add arm64 case in kprobe example module arm64: Add kernel return probes support (kretprobes) arm64: Add trampoline code for kretprobes arm64: kprobes instruction simulation support arm64: Treat all entry code as non-kprobe-able arm64: Blacklist non-kprobe-able symbol arm64: Kprobes with single stepping support arm64: add conditional instruction simulation support arm64: Add more test functions to insn.c arm64: Add HAVE_REGS_AND_STACK_ACCESS_API feature Linux 4.4.25 tpm_crb: fix crb_req_canceled behavior tpm: fix a race condition in tpm2_unseal_trusted() ima: use file_dentry() ARM: cpuidle: Fix error return code ARM: dts: MSM8064 remove flags from SPMI/MPP IRQs ARM: dts: mvebu: armada-390: add missing compatibility string and bracket x86/dumpstack: Fix x86_32 kernel_stack_pointer() previous stack access x86/irq: Prevent force migration of irqs which are not in the vector domain x86/boot: Fix kdump, cleanup aborted E820_PRAM max_pfn manipulation KVM: PPC: BookE: Fix a sanity check KVM: MIPS: Drop other CPU ASIDs on guest MMU changes KVM: PPC: Book3s PR: Allow access to unprivileged MMCR2 register mfd: wm8350-i2c: Make sure the i2c regmap functions are compiled mfd: 88pm80x: Double shifting bug in suspend/resume mfd: atmel-hlcdc: Do not sleep in atomic context mfd: rtsx_usb: Avoid setting ucr->current_sg.status ALSA: usb-line6: use the same declaration as definition in header for MIDI manufacturer ID ALSA: usb-audio: Extend DragonFly dB scale quirk to cover other variants ALSA: ali5451: Fix out-of-bound position reporting timekeeping: Fix __ktime_get_fast_ns() regression time: Add cycles to nanoseconds translation mm: Fix build for hardened usercopy ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct ANDROID: binder: Add strong ref checks UPSTREAM: staging/android/ion : fix a race condition in the ion driver ANDROID: android-base: CONFIG_HARDENED_USERCOPY=y UPSTREAM: fs/proc/kcore.c: Add bounce buffer for ktext data UPSTREAM: fs/proc/kcore.c: Make bounce buffer global for read BACKPORT: arm64: Correctly bounds check virt_addr_valid Fix a build breakage in IO latency hist code. UPSTREAM: efi: include asm/early_ioremap.h not asm/efi.h to get early_memremap UPSTREAM: ia64: split off early_ioremap() declarations into asm/early_ioremap.h FROMLIST: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN FROMLIST: arm64: xen: Enable user access before a privcmd hvc call FROMLIST: arm64: Handle faults caused by inadvertent user access with PAN enabled FROMLIST: arm64: Disable TTBR0_EL1 during normal kernel execution FROMLIST: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1 FROMLIST: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro FROMLIST: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros UPSTREAM: arm64: Handle el1 synchronous instruction aborts cleanly UPSTREAM: arm64: include alternative handling in dcache_by_line_op UPSTREAM: arm64: fix "dc cvau" cache operation on errata-affected core UPSTREAM: Revert "arm64: alternatives: add enable parameter to conditional asm macros" UPSTREAM: arm64: Add new asm macro copy_page UPSTREAM: arm64: kill ESR_LNX_EXEC UPSTREAM: arm64: add macro to extract ESR_ELx.EC UPSTREAM: arm64: mm: mark fault_info table const UPSTREAM: arm64: fix dump_instr when PAN and UAO are in use BACKPORT: arm64: Fold proc-macros.S into assembler.h UPSTREAM: arm64: choose memstart_addr based on minimum sparsemem section alignment UPSTREAM: arm64/mm: ensure memstart_addr remains sufficiently aligned UPSTREAM: arm64/kernel: fix incorrect EL0 check in inv_entry macro UPSTREAM: arm64: Add macros to read/write system registers UPSTREAM: arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM UPSTREAM: arm64/efi: split off EFI init and runtime code for reuse by 32-bit ARM UPSTREAM: arm64/efi: mark UEFI reserved regions as MEMBLOCK_NOMAP BACKPORT: arm64: only consider memblocks with NOMAP cleared for linear mapping UPSTREAM: mm/memblock: add MEMBLOCK_NOMAP attribute to memblock memory table ANDROID: dm: android-verity: Remove fec_header location constraint BACKPORT: audit: consistently record PIDs with task_tgid_nr() android-base.cfg: Enable kernel ASLR UPSTREAM: vmlinux.lds.h: allow arch specific handling of ro_after_init data section UPSTREAM: arm64: spinlock: fix spin_unlock_wait for LSE atomics UPSTREAM: arm64: avoid TLB conflict with CONFIG_RANDOMIZE_BASE UPSTREAM: arm64: Only select ARM64_MODULE_PLTS if MODULES=y sched: Add Kconfig option DEFAULT_USE_ENERGY_AWARE to set ENERGY_AWARE feature flag sched/fair: remove printk while schedule is in progress ANDROID: fs: FS tracepoints to track IO. sched/walt: Drop arch-specific timer access ANDROID: fiq_debugger: Pass task parameter to unwind_frame() eas/sched/fair: Fixing comments in find_best_target. input: keyreset: switch to orderly_reboot UPSTREAM: tun: fix transmit timestamp support UPSTREAM: arch/arm/include/asm/pgtable-3level.h: add pmd_mkclean for THP net: inet: diag: expose the socket mark to privileged processes. net: diag: make udp_diag_destroy work for mapped addresses. net: diag: support SOCK_DESTROY for UDP sockets net: diag: allow socket bytecode filters to match socket marks net: diag: slightly refactor the inet_diag_bc_audit error checks. net: diag: Add support to filter on device index UPSTREAM: brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap() Linux 4.4.24 ALSA: hda - Add the top speaker pin config for HP Spectre x360 ALSA: hda - Fix headset mic detection problem for several Dell laptops ACPICA: acpi_get_sleep_type_data: Reduce warnings ALSA: hda - Adding one more ALC255 pin definition for headset problem Revert "usbtmc: convert to devm_kzalloc" USB: serial: cp210x: Add ID for a Juniper console Staging: fbtft: Fix bug in fbtft-core usb: misc: legousbtower: Fix NULL pointer deference USB: serial: cp210x: fix hardware flow-control disable dm log writes: fix bug with too large bios clk: xgene: Add missing parenthesis when clearing divider value aio: mark AIO pseudo-fs noexec batman-adv: remove unused callback from batadv_algo_ops struct IB/mlx4: Use correct subnet-prefix in QP1 mads under SR-IOV IB/mlx4: Fix code indentation in QP1 MAD flow IB/mlx4: Fix incorrect MC join state bit-masking on SR-IOV IB/ipoib: Don't allow MC joins during light MC flush IB/core: Fix use after free in send_leave function IB/ipoib: Fix memory corruption in ipoib cm mode connect flow KVM: nVMX: postpone VMCS changes on MSR_IA32_APICBASE write dmaengine: at_xdmac: fix to pass correct device identity to free_irq() kernel/fork: fix CLONE_CHILD_CLEARTID regression in nscd ASoC: omap-mcpdm: Fix irq resource handling sysctl: handle error writing UINT_MAX to u32 fields powerpc/prom: Fix sub-processor option passed to ibm, client-architecture-support brcmsmac: Initialize power in brcms_c_stf_ss_algo_channel_get() brcmsmac: Free packet if dma_mapping_error() fails in dma_rxfill brcmfmac: Fix glob_skb leak in brcmf_sdiod_recv_chain ASoC: Intel: Skylake: Fix error return code in skl_probe() pNFS/flexfiles: Fix layoutcommit after a commit to DS pNFS/files: Fix layoutcommit after a commit to DS NFS: Don't drop CB requests with invalid principals svc: Avoid garbage replies when pc_func() returns rpc_drop_reply dmaengine: at_xdmac: fix debug string fnic: pci_dma_mapping_error() doesn't return an error code avr32: off by one in at32_init_pio() ath9k: Fix programming of minCCA power threshold gspca: avoid unused variable warnings em28xx-i2c: rt_mutex_trylock() returns zero on failure NFC: fdp: Detect errors from fdp_nci_create_conn() iwlmvm: mvm: set correct state in smart-fifo configuration tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO pstore: drop file opened reference count blk-mq: actually hook up defer list when running requests hwrng: omap - Fix assumption that runtime_get_sync will always succeed ARM: sa1111: fix pcmcia suspend/resume ARM: shmobile: fix regulator quirk for Gen2 ARM: sa1100: clear reset status prior to reboot ARM: sa1100: fix 3.6864MHz clock ARM: sa1100: register clocks early ARM: sun5i: Fix typo in trip point temperature regulator: qcom_smd: Fix voltage ranges for pm8x41 regulator: qcom_spmi: Update mvs1/mvs2 switches on pm8941 regulator: qcom_spmi: Add support for get_mode/set_mode on switches regulator: qcom_spmi: Add support for S4 supply on pm8941 tpm: fix byte-order for the value read by tpm2_get_tpm_pt printk: fix parsing of "brl=" option MIPS: uprobes: fix use of uninitialised variable MIPS: Malta: Fix IOCU disable switch read for MIPS64 MIPS: fix uretprobe implementation MIPS: uprobes: remove incorrect set_orig_insn arm64: debug: avoid resetting stepping state machine when TIF_SINGLESTEP ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7 irqchip/gicv3: Silence noisy DEBUG_PER_CPU_MAPS warning gpio: sa1100: fix irq probing for ucb1x00 usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame() ceph: fix race during filling readdir cache iwlwifi: mvm: don't use ret when not initialised iwlwifi: pcie: fix access to scratch buffer spi: sh-msiof: Avoid invalid clock generator parameters hwmon: (adt7411) set bit 3 in CFG1 register nvmem: Declare nvmem_cell_read() consistently ipvs: fix bind to link-local mcast IPv6 address in backup tools/vm/slabinfo: fix an unintentional printf mmc: pxamci: fix potential oops drivers/perf: arm_pmu: Fix leak in error path pinctrl: Flag strict is a field in struct pinmux_ops pinctrl: uniphier: fix .pin_dbg_show() callback i40e: avoid null pointer dereference perf/core: Fix pmu::filter_match for SW-led groups iwlwifi: mvm: fix a few firmware capability checks usb: musb: fix DMA for host mode usb: musb: Fix DMA desired mode for Mentor DMA engine ARM: 8617/1: dma: fix dma_max_pfn() ARM: 8616/1: dt: Respect property size when parsing CPUs drm/radeon/si/dpm: add workaround for for Jet parts drm/nouveau/fifo/nv04: avoid ramht race against cookie insertion x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID x86/init: Fix cr4_init_shadow() on CR4-less machines can: dev: fix deadlock reported after bus-off mm,ksm: fix endless looping in allocating memory when ksm enable mtd: nand: davinci: Reinitialize the HW ECC engine in 4bit hwctl cpuset: handle race between CPU hotplug and cpuset_hotplug_work usercopy: fold builtin_const check into inline function Linux 4.4.23 hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common() qxl: check for kmap failures power: supply: max17042_battery: fix model download bug. power_supply: tps65217-charger: fix missing platform_set_drvdata() PM / hibernate: Fix rtree_next_node() to avoid walking off list ends PM / hibernate: Restore processor state before using per-CPU variables MIPS: paravirt: Fix undefined reference to smp_bootstrap MIPS: Add a missing ".set pop" in an early commit MIPS: Avoid a BUG warning during prctl(PR_SET_FP_MODE, ...) MIPS: Remove compact branch policy Kconfig entries MIPS: vDSO: Fix Malta EVA mapping to vDSO page structs MIPS: SMP: Fix possibility of deadlock when bringing CPUs online MIPS: Fix pre-r6 emulation FPU initialisation i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended i2c-eg20t: fix race between i2c init and interrupt enable btrfs: ensure that file descriptor used with subvol ioctls is a dir nl80211: validate number of probe response CSA counters can: flexcan: fix resume function mm: delete unnecessary and unsafe init_tlb_ubc() tracing: Move mutex to protect against resetting of seq data fix memory leaks in tracing_buffers_splice_read() power: reset: hisi-reboot: Unmap region obtained by of_iomap mtd: pmcmsp-flash: Allocating too much in init_msp_flash() mtd: maps: sa1100-flash: potential NULL dereference fix fault_in_multipages_...() on architectures with no-op access_ok() fanotify: fix list corruption in fanotify_get_response() fsnotify: add a way to stop queueing events on group shutdown xfs: prevent dropping ioend completions during buftarg wait autofs: use dentry flags to block walks during expire autofs races pwm: Mark all devices as "might sleep" bridge: re-introduce 'fix parsing of MLDv2 reports' net: smc91x: fix SMC accesses Revert "phy: IRQ cannot be shared" net: dsa: bcm_sf2: Fix race condition while unmasking interrupts net/mlx5: Added missing check of msg length in verifying its signature tipc: fix NULL pointer dereference in shutdown() net/irda: handle iriap_register_lsap() allocation failure vti: flush x-netns xfrm cache when vti interface is removed af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock' Revert "af_unix: Fix splice-bind deadlock" bonding: Fix bonding crash megaraid: fix null pointer check in megasas_detach_one(). nouveau: fix nv40_perfctr_next() cleanup regression Staging: iio: adc: fix indent on break statement iwlegacy: avoid warning about missing braces ath9k: fix misleading indentation am437x-vfpe: fix typo in vpfe_get_app_input_index Add braces to avoid "ambiguous ‘else’" compiler warnings net: caif: fix misleading indentation Makefile: Mute warning for __builtin_return_address(>0) for tracing only Disable "frame-address" warning Disable "maybe-uninitialized" warning globally gcov: disable -Wmaybe-uninitialized warning Kbuild: disable 'maybe-uninitialized' warning for CONFIG_PROFILE_ALL_BRANCHES kbuild: forbid kernel directory to contain spaces and colons tools: Support relative directory path for 'O=' Makefile: revert "Makefile: Document ability to make file.lst and file.S" partially kbuild: Do not run modules_install and install in paralel ocfs2: fix start offset to ocfs2_zero_range_for_truncate() ocfs2/dlm: fix race between convert and migration crypto: echainiv - Replace chaining with multiplication crypto: skcipher - Fix blkcipher walk OOM crash crypto: arm/aes-ctr - fix NULL dereference in tail processing crypto: arm64/aes-ctr - fix NULL dereference in tail processing tcp: properly scale window in tcp_v[46]_reqsk_send_ack() tcp: fix use after free in tcp_xmit_retransmit_queue() tcp: cwnd does not increase in TCP YeAH ipv6: release dst in ping_v6_sendmsg ipv4: panic in leaf_walk_rcu due to stale node pointer reiserfs: fix "new_insert_key may be used uninitialized ..." Fix build warning in kernel/cpuset.c include/linux/kernel.h: change abs() macro so it uses consistent return type Linux 4.4.22 openrisc: fix the fix of copy_from_user() avr32: fix 'undefined reference to `___copy_from_user' ia64: copy_from_user() should zero the destination on access_ok() failure genirq/msi: Fix broken debug output ppc32: fix copy_from_user() sparc32: fix copy_from_user() mn10300: copy_from_user() should zero on access_ok() failure... nios2: copy_from_user() should zero the tail of destination openrisc: fix copy_from_user() parisc: fix copy_from_user() metag: copy_from_user() should zero the destination on access_ok() failure alpha: fix copy_from_user() asm-generic: make copy_from_user() zero the destination properly mips: copy_from_user() must zero the destination on access_ok() failure hexagon: fix strncpy_from_user() error return sh: fix copy_from_user() score: fix copy_from_user() and friends blackfin: fix copy_from_user() cris: buggered copy_from_user/copy_to_user/clear_user frv: fix clear_user() asm-generic: make get_user() clear the destination on errors ARC: uaccess: get_user to zero out dest in cause of fault s390: get_user() should zero on failure score: fix __get_user/get_user nios2: fix __get_user() sh64: failing __get_user() should zero m32r: fix __get_user() mn10300: failing __get_user() and get_user() should zero fix minor infoleak in get_user_ex() microblaze: fix copy_from_user() avr32: fix copy_from_user() microblaze: fix __get_user() fix iov_iter_fault_in_readable() irqchip/atmel-aic: Fix potential deadlock in ->xlate() genirq: Provide irq_gc_{lock_irqsave,unlock_irqrestore}() helpers drm: Only use compat ioctl for addfb2 on X86/IA64 drm: atmel-hlcdc: Fix vertical scaling net: simplify napi_synchronize() to avoid warnings kconfig: tinyconfig: provide whole choice blocks to avoid warnings soc: qcom/spm: shut up uninitialized variable warning pinctrl: at91-pio4: use %pr format string for resource mmc: dw_mmc: use resource_size_t to store physical address drm/i915: Avoid pointer arithmetic in calculating plane surface offset mpssd: fix buffer overflow warning gma500: remove annoying deprecation warning ipv6: addrconf: fix dev refcont leak when DAD failed sched/core: Fix a race between try_to_wake_up() and a woken up task Revert "wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel" ath9k: fix using sta->drv_priv before initializing it md-cluster: make md-cluster also can work when compiled into kernel xhci: fix null pointer dereference in stop command timeout function fuse: direct-io: don't dirty ITER_BVEC pages Btrfs: remove root_log_ctx from ctx list before btrfs_sync_log returns crypto: cryptd - initialize child shash_desc on import arm64: spinlocks: implement smp_mb__before_spinlock() as smp_mb() pinctrl: sunxi: fix uart1 CTS/RTS pins at PG on A23/A33 pinctrl: pistachio: fix mfio pll_lock pinmux dm crypt: fix error with too large bios dm log writes: move IO accounting earlier to fix error path dm log writes: fix check of kthread_run() return value bus: arm-ccn: Fix XP watchpoint settings bitmask bus: arm-ccn: Do not attempt to configure XPs for cycle counter bus: arm-ccn: Fix PMU handling of MN ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI ARM: dts: overo: fix gpmc nand on boards with ethernet ARM: dts: overo: fix gpmc nand cs0 range ARM: dts: imx6qdl: Fix SPDIF regression ARM: OMAP3: hwmod data: Add sysc information for DSI ARM: kirkwood: ib62x0: fix size of u-boot environment partition ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx ARM: imx6: add missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul ARM: AM43XX: hwmod: Fix RSTST register offset for pruss cpuset: make sure new tasks conform to the current config of the cpuset net: thunderx: Fix OOPs with ethtool --register-dump USB: change bInterval default to 10 ms ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB) usb: chipidea: udc: fix NULL ptr dereference in isr_setup_status_phase usb: renesas_usbhs: fix clearing the {BRDY,BEMP}STS condition USB: serial: simple: add support for another Infineon flashloader serial: 8250: added acces i/o products quad and octal serial cards serial: 8250_mid: fix divide error bug if baud rate is 0 iio: ensure ret is initialized to zero before entering do loop iio:core: fix IIO_VAL_FRACTIONAL sign handling iio: accel: kxsd9: Fix scaling bug iio: fix pressure data output unit in hid-sensor-attributes iio: accel: bmc150: reset chip at init time iio: adc: at91: unbreak channel adc channel 3 iio: ad799x: Fix buffered capture for ad7991/ad7995/ad7999 iio: adc: ti_am335x_adc: Increase timeout value waiting for ADC sample iio: adc: ti_am335x_adc: Protect FIFO1 from concurrent access iio: adc: rockchip_saradc: reset saradc controller before programming it iio: proximity: as3935: set up buffer timestamps for non-zero values iio: accel: kxsd9: Fix raw read return kvm-arm: Unmap shadow pagetables properly x86/AMD: Apply erratum 665 on machines without a BIOS fix x86/paravirt: Do not trace _paravirt_ident_*() functions ARC: mm: fix build breakage with STRICT_MM_TYPECHECKS IB/uverbs: Fix race between uverbs_close and remove_one dm flakey: fix reads to be issued if drop_writes configured audit: fix exe_file access in audit_exe_compare mm: introduce get_task_exe_file kexec: fix double-free when failing to relocate the purgatory NFSv4.1: Fix the CREATE_SESSION slot number accounting pNFS: Ensure LAYOUTGET and LAYOUTRETURN are properly serialised nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock NFSv4.x: Fix a refcount leak in nfs_callback_up_net pNFS: The client must not do I/O to the DS if it's lease has expired kernfs: don't depend on d_find_any_alias() when generating notifications powerpc/mm: Don't alias user region to other regions below PAGE_OFFSET powerpc/powernv : Drop reference added by kset_find_obj() powerpc/tm: do not use r13 for tabort_syscall tipc: move linearization of buffers to generic code lightnvm: put bio before return fscrypto: require write access to mount to set encryption policy Revert "KVM: x86: fix missed hardware breakpoints" MIPS: KVM: Check for pfn noslot case clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function fscrypto: add authorization check for setting encryption policy ext4: use __GFP_NOFAIL in ext4_free_blocks() Conflicts: arch/arm/kernel/devtree.c arch/arm64/Kconfig arch/arm64/kernel/arm64ksyms.c arch/arm64/kernel/psci.c arch/arm64/mm/fault.c drivers/android/binder.c drivers/usb/host/xhci-hub.c fs/ext4/readpage.c include/linux/mmc/core.h include/linux/mmzone.h mm/memcontrol.c net/core/filter.c net/netlink/af_netlink.c net/netlink/af_netlink.h Change-Id: I99fe7a0914e83e284b11b33185b71448a8999d1f Signed-off-by: Runmin Wang <runminw@codeaurora.org> Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-02-21mm: fix build warnings in <linux/compaction.h>Minchan Kim
Randy reported below build error. > In file included from ../include/linux/balloon_compaction.h:48:0, > from ../mm/balloon_compaction.c:11: > ../include/linux/compaction.h:237:51: warning: 'struct node' declared inside parameter list [enabled by default] > static inline int compaction_register_node(struct node *node) > ../include/linux/compaction.h:237:51: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] > ../include/linux/compaction.h:242:54: warning: 'struct node' declared inside parameter list [enabled by default] > static inline void compaction_unregister_node(struct node *node) > It was caused by non-lru page migration which needs compaction.h but compaction.h doesn't include any header to be standalone. I think proper header for non-lru page migration is migrate.h rather than compaction.h because migrate.h has already headers needed to work non-lru page migration indirectly like isolate_mode_t, migrate_mode MIGRATEPAGE_SUCCESS. [akpm@linux-foundation.org: revert mm-balloon-use-general-non-lru-movable-page-feature-fix.patch temp fix] Link: http://lkml.kernel.org/r/20160610003304.GE29779@bbox Signed-off-by: Minchan Kim <minchan@kernel.org> Reported-by: Randy Dunlap <rdunlap@infradead.org> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Gioh Kim <gi-oh.kim@profitbricks.com> Cc: Rafael Aquini <aquini@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Git-commit: dd4123f324bbaec7618b677b7bce2b11aee9594e Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Change-Id: If9a33a471f69bf008f4c2d40f21ff30abce200bb Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
2017-02-21mm: balloon: use general non-lru movable page featureMinchan Kim
Now, VM has a feature to migrate non-lru movable pages so balloon doesn't need custom migration hooks in migrate.c and compaction.c. Instead, this patch implements the page->mapping->a_ops-> {isolate|migrate|putback} functions. With that, we could remove hooks for ballooning in general migration functions and make balloon compaction simple. [akpm@linux-foundation.org: compaction.h requires that the includer first include node.h] Link: http://lkml.kernel.org/r/1464736881-24886-4-git-send-email-minchan@kernel.org Signed-off-by: Gioh Kim <gi-oh.kim@profitbricks.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Rafael Aquini <aquini@redhat.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Git-commit: b1123ea6d3b3da25af5c8a9d843bd07ab63213f4 Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Change-Id: Ibf5bc7ffcbfd31e01946729dc5366baa79d7cf5e Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
2016-11-10virtio_ring: Make interrupt suppression spec compliantLadi Prosek
commit 0ea1e4a6d9b62cf29e210d2b4ba9fd43917522e3 upstream. According to the spec, if the VIRTIO_RING_F_EVENT_IDX feature bit is negotiated the driver MUST set flags to 0. Not dirtying the available ring in virtqueue_disable_cb also has a minor positive performance impact, improving L1 dcache load missed by ~0.5% in vring_bench. Writes to the used event field (vring_used_event) are still unconditional. Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Ladi Prosek <lprosek@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07virtio: fix memory leak in virtqueue_add()Wei Yongjun
commit 58625edf9e2515ed41dac2a24fa8004030a87b87 upstream. When using the indirect buffers feature, 'desc' is allocated in virtqueue_add() but isn't freed before leaving on a ring full error, causing a memory leak. For example, it seems rather clear that this can trigger with virtio net if mergeable buffers are not used. Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20balloon: check the number of available pages in leak balloonKonstantin Neumoin
commit 37cf99e08c6fb4dcea0f9ad2b13b6daa8c76a711 upstream. The balloon has a special mechanism that is subscribed to the oom notification which leads to deflation for a fixed number of pages. The number is always fixed even when the balloon is fully deflated. But leak_balloon did not expect that the pages to deflate will be more than taken, and raise a "BUG" in balloon_page_dequeue when page list will be empty. So, the simplest solution would be to check that the number of releases pages is less or equal to the number taken pages. Signed-off-by: Konstantin Neumoin <kneumoin@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-27virtio_balloon: fix PFN format for virtio-1Michael S. Tsirkin
commit 87c9403b0d1de4676b0bd273eea68fcf6de68e68 upstream. Everything should be LE when using virtio-1, but the linux balloon driver does not seem to care about that. Reported-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20virtio: virtio 1.0 cs04 spec compliance for resetMichael S. Tsirkin
commit 05dbcb430795b2e1fb1d5c757f8619d3dbed0a1c upstream. The spec says: after writing 0 to device_status, the driver MUST wait for a read of device_status to return 0 before reinitializing the device. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03virtio_pci: fix use after free on releaseMichael S. Tsirkin
commit 2989be09a8a9d62a785137586ad941f916e08f83 upstream. KASan detected a use-after-free error in virtio-pci remove code. In virtio_pci_remove(), vp_dev is still used after being freed in unregister_virtio_device() (in virtio_pci_release_dev() more precisely). To fix, keep a reference until cleanup is done. Fixes: 63bd62a08ca4 ("virtio_pci: defer kfree until release callback") Reported-by: Jerome Marchand <jmarchan@redhat.com> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Jerome Marchand <jmarchan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03virtio_balloon: fix race by fill and leakMinchan Kim
commit f68b992bbb474641881932c61c92dcfa6f5b3689 upstream. During my compaction-related stuff, I encountered a bug with ballooning. With repeated inflating and deflating cycle, guest memory( ie, cat /proc/meminfo | grep MemTotal) is decreased and couldn't be recovered. The reason is balloon_lock doesn't cover release_pages_balloon so struct virtio_balloon fields could be overwritten by race of fill_balloon(e,g, vb->*pfns could be critical). This patch fixes it in my test. Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-07virtio_ring: shadow available ring flags & indexVenkatesh Srinivas
Improves cacheline transfer flow of available ring header. Virtqueues are implemented as a pair of rings, one producer->consumer avail ring and one consumer->producer used ring; preceding the avail ring in memory are two contiguous u16 fields -- avail->flags and avail->idx. A producer posts work by writing to avail->idx and a consumer reads avail->idx. The flags and idx fields only need to be written by a producer CPU and only read by a consumer CPU; when the producer and consumer are running on different CPUs and the virtio_ring code is structured to only have source writes/sink reads, we can continuously transfer the avail header cacheline between 'M' states between cores. This flow optimizes core -> core bandwidth on certain CPUs. (see: "Software Optimization Guide for AMD Family 15h Processors", Section 11.6; similar language appears in the 10h guide and should apply to CPUs w/ exclusive caches, using LLC as a transfer cache) Unfortunately the existing virtio_ring code issued reads to the avail->idx and read-modify-writes to avail->flags on the producer. This change shadows the flags and index fields in producer memory; the vring code now reads from the shadows and only ever writes to avail->flags and avail->idx, allowing the cacheline to transfer core -> core optimally. In a concurrent version of vring_bench, the time required for 10,000,000 buffer checkout/returns was reduced by ~2% (average across many runs) on an AMD Piledriver (15h) CPU: (w/o shadowing): Performance counter stats for './vring_bench': 5,451,082,016 L1-dcache-loads ... 2.221477739 seconds time elapsed (w/ shadowing): Performance counter stats for './vring_bench': 5,405,701,361 L1-dcache-loads ... 2.168405376 seconds time elapsed The further away (in a NUMA sense) virtio producers and consumers are from each other, the more we expect to benefit. Physical implementations of virtio devices and implementations of virtio where the consumer polls vring avail indexes (vhost) should also benefit. Signed-off-by: Venkatesh Srinivas <venkateshs@google.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-07virtio: Do not drop __GFP_HIGH in alloc_indirectMichal Hocko
b92b1b89a33c ("virtio: force vring descriptors to be allocated from lowmem") tried to exclude highmem pages for descriptors so it cleared __GFP_HIGHMEM from a given gfp mask. The patch also cleared __GFP_HIGH which doesn't make much sense for this fix because __GFP_HIGH only controls access to memory reserves and it doesn't have any influence on the zone selection. Some of the call paths use GFP_ATOMIC and dropping __GFP_HIGH will reduce their changes for success because the lack of access to memory reserves. Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Mel Gorman <mgorman@techsingularity.net>
2015-12-07virtio: fix memory leak of virtio ida cache layersSuman Anna
The virtio core uses a static ida named virtio_index_ida for assigning index numbers to virtio devices during registration. The ida core may allocate some internal idr cache layers and an ida bitmap upon any ida allocation, and all these layers are truely freed only upon the ida destruction. The virtio_index_ida is not destroyed at present, leading to a memory leak when using the virtio core as a module and atleast one virtio device is registered and unregistered. Fix this by invoking ida_destroy() in the virtio core module exit. Cc: stable@vger.kernel.org Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-09-08virtio_balloon: do not change memory amount visible via /proc/meminfoDenis V. Lunev
Balloon device is frequently used as a mean of cooperative memory control in between guest and host to manage memory overcommitment. This is the typical case for any hosting workload when KVM guest is provided for end-user. Though there is a problem in this setup. The end-user and hosting provider have signed SLA agreement in which some amount of memory is guaranted for the guest. The good thing is that this memory will be given to the guest when the guest will really need it (f.e. with OOM in guest and with VIRTIO_BALLOON_F_DEFLATE_ON_OOM configuration flag set). The bad thing is that end-user does not know this. Balloon by default reduce the amount of memory exposed to the end-user each time when the page is stolen from guest or returned back by using adjust_managed_page_count and thus /proc/meminfo shows reduced amount of memory. Fortunately the solution is simple, we should just avoid to call adjust_managed_page_count with VIRTIO_BALLOON_F_DEFLATE_ON_OOM set. Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-09-08virtio_ballon: change stub of release_pages_by_pfnDenis V. Lunev
and rename it to release_pages_balloon. The function originally takes arrays of pfns and now it takes pointer to struct virtio_ballon. This change is necessary to conditionally call adjust_managed_page_count in the next patch. Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-09-08virtio_mmio: add ACPI probingGraeme Gregory
Added the match table and pointers for ACPI probing to the driver. This uses the same identifier for virt devices as being used for qemu ARM64 ACPI support. http://git.linaro.org/people/shannon.zhao/qemu.git/commit/d0bf1955a3ecbab4b51d46f8c5dda02b7e14a17e Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-08-06virtio-input: reset device and detach unused during removeJason Wang
Spec requires a device reset during cleanup, so do it and avoid warn in virtio core. And detach unused buffers to avoid memory leak. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-03Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull virtio/vhost cross endian support from Michael Tsirkin: "I have just queued some more bugfix patches today but none fix regressions and none are related to these ones, so it looks like a good time for a merge for -rc1. The motivation for this is support for legacy BE guests on the new LE hosts. There are two redeeming properties that made me merge this: - It's a trivial amount of code: since we wrap host/guest accesses anyway, almost all of it is well hidden from drivers. - Sane platforms would never set flags like VHOST_CROSS_ENDIAN_LEGACY, and when it's clear, there's zero overhead (as some point it was tested by compiling with and without the patches, got the same stripped binary). Maybe we could create a Kconfig symbol to enforce the second point: prevent people from enabling it eg on x86. I will look into this" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio-pci: alloc only resources actually used. macvtap/tun: cross-endian support for little-endian hosts vhost: cross-endian support for legacy devices virtio: add explicit big-endian support to memory accessors vhost: introduce vhost_is_little_endian() helper vringh: introduce vringh_is_little_endian() helper macvtap: introduce macvtap_is_little_endian() helper tun: add tun_is_little_endian() helper virtio: introduce virtio_is_little_endian() helper
2015-07-01Merge tag 'modules-next-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module updates from Rusty Russell: "Main excitement here is Peter Zijlstra's lockless rbtree optimization to speed module address lookup. He found some abusers of the module lock doing that too. A little bit of parameter work here too; including Dan Streetman's breaking up the big param mutex so writing a parameter can load another module (yeah, really). Unfortunately that broke the usual suspects, !CONFIG_MODULES and !CONFIG_SYSFS, so those fixes were appended too" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (26 commits) modules: only use mod->param_lock if CONFIG_MODULES param: fix module param locks when !CONFIG_SYSFS. rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() module: add per-module param_lock module: make perm const params: suppress unused variable error, warn once just in case code changes. modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'. kernel/module.c: avoid ifdefs for sig_enforce declaration kernel/workqueue.c: remove ifdefs over wq_power_efficient kernel/params.c: export param_ops_bool_enable_only kernel/params.c: generalize bool_enable_only kernel/module.c: use generic module param operaters for sig_enforce kernel/params: constify struct kernel_param_ops uses sysfs: tightened sysfs permission checks module: Rework module_addr_{min,max} module: Use __module_address() for module_address_lookup() module: Make the mod_tree stuff conditional on PERF_EVENTS || TRACING module: Optimize __module_address() using a latched RB-tree rbtree: Implement generic latch_tree seqlock: Introduce raw_read_seqcount_latch() ...
2015-06-24virtio-pci: alloc only resources actually used.Gerd Hoffmann
Move resource allocation from common code to legacy and modern code. Only request resources actually used, i.e. bar0 in legacy mode and the bar(s) specified by capabilities in modern mode. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-06-23Merge tag 'pci-v4.2-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "PCI changes for the v4.2 merge window: Enumeration - Move pci_ari_enabled() to global header (Alex Williamson) - Account for ARI in _PRT lookups (Alex Williamson) - Remove unused pci_scan_bus_parented() (Yijing Wang) Resource management - Use host bridge _CRS info on systems with >32 bit addressing (Bjorn Helgaas) - Use host bridge _CRS info on Foxconn K8M890-8237A (Bjorn Helgaas) - Fix pci_address_to_pio() conversion of CPU address to I/O port (Zhichang Yuan) - Add pci_bus_addr_t (Yinghai Lu) PCI device hotplug - Wait for pciehp command completion where necessary (Alex Williamson) - Drop pointless ACPI-based "slot detection" check (Rafael J. Wysocki) - Check ignore_hotplug for all downstream devices (Rafael J. Wysocki) - Propagate the "ignore hotplug" setting to parent (Rafael J. Wysocki) - Inline pciehp "handle event" functions into the ISR (Bjorn Helgaas) - Clean up pciehp debug logging (Bjorn Helgaas) Power management - Remove redundant PCIe port type checking (Yijing Wang) - Add dev->has_secondary_link to track downstream PCIe links (Yijing Wang) - Use dev->has_secondary_link to find downstream links for ASPM (Yijing Wang) - Drop __pci_disable_link_state() useless "force" parameter (Bjorn Helgaas) - Simplify Clock Power Management setting (Bjorn Helgaas) Virtualization - Add ACS quirks for Intel 9-series PCH root ports (Alex Williamson) - Add function 1 DMA alias quirk for Marvell 9120 (Sakari Ailus) MSI - Disable MSI at enumeration even if kernel doesn't support MSI (Michael S. Tsirkin) - Remove unused pci_msi_off() (Bjorn Helgaas) - Rename msi_set_enable(), msix_clear_and_set_ctrl() (Michael S. Tsirkin) - Export pci_msi_set_enable(), pci_msix_clear_and_set_ctrl() (Michael S. Tsirkin) - Drop pci_msi_off() calls during probe (Michael S. Tsirkin) APM X-Gene host bridge driver - Add APM X-Gene v1 PCIe MSI/MSIX termination driver (Duc Dang) - Add APM X-Gene PCIe MSI DTS nodes (Duc Dang) - Disable Configuration Request Retry Status for v1 silicon (Duc Dang) - Allow config access to Root Port even when link is down (Duc Dang) Broadcom iProc host bridge driver - Allow override of device tree IRQ mapping function (Hauke Mehrtens) - Add BCMA PCIe driver (Hauke Mehrtens) - Directly add PCI resources (Hauke Mehrtens) - Free resource list after registration (Hauke Mehrtens) Freescale i.MX6 host bridge driver - Add speed change timeout message (Troy Kisky) - Rename imx6_pcie_start_link() to imx6_pcie_establish_link() (Bjorn Helgaas) Freescale Layerscape host bridge driver - Use dw_pcie_link_up() consistently (Bjorn Helgaas) - Factor out ls_pcie_establish_link() (Bjorn Helgaas) Marvell MVEBU host bridge driver - Remove mvebu_pcie_scan_bus() (Yijing Wang) NVIDIA Tegra host bridge driver - Remove tegra_pcie_scan_bus() (Yijing Wang) Synopsys DesignWare host bridge driver - Consolidate outbound iATU programming functions (Jisheng Zhang) - Use iATU0 for cfg and IO, iATU1 for MEM (Jisheng Zhang) - Add support for x8 links (Zhou Wang) - Wait for link to come up with consistent style (Bjorn Helgaas) - Use pci_scan_root_bus() for simplicity (Yijing Wang) TI DRA7xx host bridge driver - Use dw_pcie_link_up() consistently (Bjorn Helgaas) Miscellaneous - Include <linux/pci.h>, not <asm/pci.h> (Bjorn Helgaas) - Remove unnecessary #includes of <asm/pci.h> (Bjorn Helgaas) - Remove unused pcibios_select_root() (again) (Bjorn Helgaas) - Remove unused pci_dma_burst_advice() (Bjorn Helgaas) - xen/pcifront: Don't use deprecated function pci_scan_bus_parented() (Arnd Bergmann)" * tag 'pci-v4.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (58 commits) PCI: pciehp: Inline the "handle event" functions into the ISR PCI: pciehp: Rename queue_interrupt_event() to pciehp_queue_interrupt_event() PCI: pciehp: Make queue_interrupt_event() void PCI: xgene: Allow config access to Root Port even when link is down PCI: xgene: Disable Configuration Request Retry Status for v1 silicon PCI: pciehp: Clean up debug logging x86/PCI: Use host bridge _CRS info on systems with >32 bit addressing PCI: imx6: Add #define PCIE_RC_LCSR PCI: imx6: Use "u32", not "uint32_t" PCI: Remove unused pci_scan_bus_parented() xen/pcifront: Don't use deprecated function pci_scan_bus_parented() PCI: imx6: Add speed change timeout message PCI/ASPM: Simplify Clock Power Management setting PCI: designware: Wait for link to come up with consistent style PCI: layerscape: Factor out ls_pcie_establish_link() PCI: layerscape: Use dw_pcie_link_up() consistently PCI: dra7xx: Use dw_pcie_link_up() consistently x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A PCI: pciehp: Wait for hotplug command completion where necessary PCI: Remove unused pci_dma_burst_advice() ...
2015-06-04virtio_pci: Clear stale cpumask when setting irq affinityJiang Liu
The cpumask vp_dev->msix_affinity_masks[info->msix_vector] may contain staled information when vp_set_vq_affinity() gets called, so clear it before setting the new cpu bit mask. Cc: stable@vger.kernel.org Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-05-28kernel/params: constify struct kernel_param_ops usesLuis R. Rodriguez
Most code already uses consts for the struct kernel_param_ops, sweep the kernel for the last offending stragglers. Other than include/linux/moduleparam.h and kernel/params.c all other changes were generated with the following Coccinelle SmPL patch. Merge conflicts between trees can be handled with Coccinelle. In the future git could get Coccinelle merge support to deal with patch --> fail --> grammar --> Coccinelle --> new patch conflicts automatically for us on patches where the grammar is available and the patch is of high confidence. Consider this a feature request. Test compiled on x86_64 against: * allnoconfig * allmodconfig * allyesconfig @ const_found @ identifier ops; @@ const struct kernel_param_ops ops = { }; @ const_not_found depends on !const_found @ identifier ops; @@ -struct kernel_param_ops ops = { +const struct kernel_param_ops ops = { }; Generated-by: Coccinelle SmPL Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Junio C Hamano <gitster@pobox.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Cc: Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: cocci@systeme.lip6.fr Cc: linux-kernel@vger.kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-05-07virtio_pci: drop pci_msi_off() call during probeMichael S. Tsirkin
The PCI core now disables MSI and MSI-X for all devices during enumeration regardless of CONFIG_PCI_MSI. Remove device-specific code to disable MSI/MSI-X. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-15virtio: drop virtio_device_is_legacy_onlyMichael S. Tsirkin
virtio_device_is_legacy_only is now unused, drop it from core. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-15virtio_pci: support non-legacy balloon devicesMichael S. Tsirkin
virtio_device_is_legacy_only is always false now, drop the test from virtio pci. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-15virtio_mmio: support non-legacy balloon devicesMichael S. Tsirkin
virtio_device_is_legacy_only is always false now, drop the test from virtio mmio. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-15virtio: balloon might not be a legacy deviceMichael S. Tsirkin
We added transitional device support to balloon driver, so we don't need to black-list it in core anymore. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-15virtio_balloon: transitional interfaceMichael S. Tsirkin
Virtio 1.0 doesn't include a modern balloon device. But it's not a big change to support a transitional balloon device: this has the advantage of supporting existing drivers, transparently. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-01virtio_pci_modern: switch to type-safe io accessorsMichael S. Tsirkin
As Rusty noted, we were accessing queue_enable with an incorrect width. Switch to type-safe accessors so we don't make this mistake again in the future. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-01virtio_pci_modern: type-safe io accessorsMichael S. Tsirkin
The spec is very clear on this: 4.1.3.1 Driver Requirements: PCI Device Layout The driver MUST access each field using the “natural” access method, i.e. 32-bit accesses for 32-bit fields, 16-bit accesses for 16-bit fields and 8-bit accesses for 8-bit fields. Add type-safe wrappers to prevent access with incorrect width. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-03-29Add virtio-input driver.Gerd Hoffmann
virtio-input is basically evdev-events-over-virtio, so this driver isn't much more than reading configuration from config space and forwarding incoming events to the linux input layer. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-03-17virtio_mmio: fix access width for mmioMichael S. Tsirkin
Going over the virtio mmio code, I noticed that it doesn't correctly access modern device config values using "natural" accessors: it uses readb to get/set them byte by byte, while the virtio 1.0 spec explicitly states: 4.2.2.2 Driver Requirements: MMIO Device Register Layout ... The driver MUST only use 32 bit wide and aligned reads and writes to access the control registers described in table 4.1. For the device-specific configuration space, the driver MUST use 8 bit wide accesses for 8 bit wide fields, 16 bit wide and aligned accesses for 16 bit wide fields and 32 bit wide and aligned accesses for 32 and 64 bit wide fields. Borrow code from virtio_pci_modern to do this correctly. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-03-13virtio_mmio: generation supportMichael S. Tsirkin
virtio_mmio currently lacks generation support which makes multi-byte field access racy. Fix by getting the value at offset 0xfc for version 2 devices. Nothing we can do for version 1, so return generation id 0. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-03-10virtio-balloon: do not call blocking ops when !TASK_RUNNINGMichael S. Tsirkin
virtio balloon has this code: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); Which is a problem because towards_target() call might block after wait_event_interruptible sets task state to TAST_INTERRUPTIBLE, causing the task_struct::state collision typical of nesting of sleeping primitives See also http://lwn.net/Articles/628628/ or Thomas's bug report http://article.gmane.org/gmane.linux.kernel.virtualization/24846 for a fuller explanation. To fix, rewrite using wait_woken. Cc: stable@vger.kernel.org Reported-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-03-10virtio_balloon: set DRIVER_OK before using deviceMichael S. Tsirkin
virtio spec requires that all drivers set DRIVER_OK before using devices. While balloon isn't yet included in the virtio 1 spec, previous spec versions also required this. virtio balloon might violate this rule: probe calls kthread_run before setting DRIVER_OK, which might run immediately and cause balloon to inflate/deflate. To fix, call virtio_device_ready before running the kthread. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org
2015-02-17virtio: don't set VIRTIO_CONFIG_S_DRIVER_OK twice.Rusty Russell
I noticed this with the console device. It's not *wrong*, just a bit weird. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-02-11virtio_pci: use 16-bit accessor for queue_enable.Rusty Russell
Since PCI is little endian, 8-bit access might work, but the spec section is very clear on this: 4.1.3.1 Driver Requirements: PCI Device Layout The driver MUST access each field using the “natural” access method, i.e. 32-bit accesses for 32-bit fields, 16-bit accesses for 16-bit fields and 8-bit accesses for 8-bit fields. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Michael S. Tsirkin <mst@redhat.com>
2015-02-11virtio: Avoid possible kernel panic if DEBUG is enabled.Tetsuo Handa
The virtqueue_add() calls START_USE() upon entry. The virtqueue_kick() is called if vq->num_added == (1 << 16) - 1 before calling END_USE(). The virtqueue_kick_prepare() called via virtqueue_kick() calls START_USE() upon entry, and will call panic() if DEBUG is enabled. Move this virtqueue_kick() call to after END_USE() call. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-01-23virtio-mmio: Update the device to OASIS spec versionPawel Moll
This patch add a support for second version of the virtio-mmio device, which follows OASIS "Virtual I/O Device (VIRTIO) Version 1.0" specification. Main changes: 1. The control register symbolic names use the new device/driver nomenclature rather than the old guest/host one. 2. The driver detect the device version (version 1 is the pre-OASIS spec, version 2 is compatible with fist revision of the OASIS spec) and drives the device accordingly. 3. New version uses direct addressing (64 bit address split into two low/high register) instead of the guest page size based one, and addresses each part of the queue (descriptors, available, used) separately. 4. The device activity is now explicitly triggered by writing to the "queue ready" register. 5. Whole 64 bit features are properly handled now (both ways). Signed-off-by: Pawel Moll <pawel.moll@arm.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-01-21virtio_pci_modern: drop an unused functionMichael S. Tsirkin
release function in modern driver is unused: it's a left-over from when each driver had to have its own release. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>