udc
342 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Park Ju Hyung
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232e551bd4 |
trace: Force disable trace_printk() usage
Poorly made kernel trees often use trace_printk() without properly guarding them in a #ifdef macro. Such usage of trace_printk() causes a warning at boot and additional memory allocation. This option serves to disable those all at once with ease. Change-Id: Id06243f9b7e4bb9f19e1b385337773552d23b6d8 Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com> Signed-off-by: engstk <eng.stk@sapo.pt> |
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Michael Bestas
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50bfc82262 |
Merge remote-tracking branch 'common/android-4.9-q' into android-msm-pixel-4.9
* common/android-4.9-q:
ANDROID: android-verity: Prevent double-freeing metadata
Linux 4.9.317
bpf: Enlarge offset check value to INT_MAX in bpf_skb_{load,store}_bytes
NFSD: Fix possible sleep during nfsd4_release_lockowner()
tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm_probe()
dm verity: set DM_TARGET_IMMUTABLE feature flag
dm stats: add cond_resched when looping over entries
dm crypt: make printing of the key constant-time
exec: Force single empty string when argv is empty
block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern
drm/i915: Fix -Wstringop-overflow warning in call to intel_read_wm_latency()
assoc_array: Fix BUG_ON during garbage collect
drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers
net: af_key: check encryption module availability consistency
Linux 4.9.316
net: stmmac: fix missing pci_disable_device() on error in stmmac_pci_probe()
ethernet: tulip: fix missing pci_disable_device() on error in tulip_init_one()
mac80211: fix rx reordering with non explicit / psmp ack policy
scsi: qla2xxx: Fix missed DMA unmap for aborted commands
perf bench numa: Address compiler error on s390
igb: skip phy status check where unavailable
ARM: 9197/1: spectre-bhb: fix loop8 sequence for Thumb2
ARM: 9196/1: spectre-bhb: enable for Cortex-A15
net: af_key: add check for pfkey_broadcast in function pfkey_process
NFC: nci: fix sleep in atomic context bugs caused by nci_skb_alloc
net/qla3xxx: Fix a test in ql_reset_work()
net: vmxnet3: fix possible NULL pointer dereference in vmxnet3_rq_cleanup()
net: vmxnet3: fix possible use-after-free bugs in vmxnet3_rq_alloc_rx_buf()
drm/dp/mst: fix a possible memory leak in fetch_monitor_name()
perf: Fix sys_perf_event_open() race against self
ALSA: wavefront: Proper check of get_user() error
mmc: core: Default to generic_cmd6_time as timeout in __mmc_switch()
mmc: block: Use generic_cmd6_time when modifying INAND_CMD38_ARG_EXT_CSD
mmc: core: Specify timeouts for BKOPS and CACHE_FLUSH for eMMC
ARM: 9191/1: arm/stacktrace, kasan: Silence KASAN warnings in unwind_frame()
drbd: remove usage of list iterator variable after loop
MIPS: lantiq: check the return value of kzalloc()
Input: add bounds checking to input_set_capability()
um: Cleanup syscall_handler_t definition/cast, fix warning
floppy: use a statically allocated error counter
Linux 4.9.315
tty/serial: digicolor: fix possible null-ptr-deref in digicolor_uart_probe()
ping: fix address binding wrt vrf
USB: serial: option: add Fibocom MA510 modem
USB: serial: option: add Fibocom L610 modem
USB: serial: qcserial: add support for Sierra Wireless EM7590
USB: serial: pl2303: add device id for HP LM930 Display
usb: cdc-wdm: fix reading stuck on device close
ASoC: ops: Validate input values in snd_soc_put_volsw_range()
ASoC: max98090: Generate notifications on changes for custom control
ASoC: max98090: Reject invalid values in custom control put()
hwmon: (f71882fg) Fix negative temperature
net: sfc: ef10: fix memory leak in efx_ef10_mtd_probe()
s390/lcs: fix variable dereferenced before check
s390/ctcm: fix potential memory leak
s390/ctcm: fix variable dereferenced before check
mac80211_hwsim: call ieee80211_tx_prepare_skb under RCU protection
netlink: do not reset transport header in netlink_recvmsg()
ipv4: drop dst in multicast routing path
net: Fix features skip in for_each_netdev_feature()
Linux 4.9.314
mm: userfaultfd: fix missing cache flush in mcopy_atomic_pte() and __mcopy_atomic()
mmc: rtsx: add 74 Clocks in power on flow
Bluetooth: Fix the creation of hdev->name
can: grcan: only use the NAPI poll budget for RX
can: grcan: grcan_probe(): fix broken system id check for errata workaround needs
block: drbd: drbd_nl: Make conversion to 'enum drbd_ret_code' explicit
MIPS: Use address-of operator on section symbols
Linux 4.9.313
dm: interlock pending dm_io and dm_wait_for_bios_completion
dm: fix mempool NULL pointer race when completing IO
net: ipv6: ensure we call ipv6_mc_down() at most once
net: sched: prevent UAF on tc_ctl_tfilter when temporarily dropping rtnl_lock
kvm: x86/cpuid: Only provide CPUID leaf 0xA if host has architectural PMU
net: igmp: respect RCU rules in ip_mc_source() and ip_mc_msfilter()
btrfs: always log symlinks in full mode
smsc911x: allow using IRQ0
net: emaclite: Add error handling for of_address_to_resource()
ASoC: dmaengine: Restore NULL prepare_slave_config() callback
hwmon: (adt7470) Fix warning on module removal
NFC: netlink: fix sleep in atomic bug when firmware download timeout
nfc: nfcmrvl: main: reorder destructive operations in nfcmrvl_nci_unregister_dev to avoid bugs
nfc: replace improper check device_is_registered() in netlink related functions
can: grcan: use ofdev->dev when allocating DMA memory
can: grcan: grcan_close(): fix deadlock
ASoC: wm8958: Fix change notifications for DSP controls
firewire: core: extend card->lock in fw_core_handle_bus_reset
firewire: remove check of list iterator against head past the loop body
firewire: fix potential uaf in outbound_phy_packet_callback()
Revert "SUNRPC: attempt AF_LOCAL connect on setup"
ALSA: fireworks: fix wrong return count shorter than expected by 4 bytes
parisc: Merge model and model name into one line in /proc/cpuinfo
MIPS: Fix CP0 counter erratum detection for R4k CPUs
tty: n_gsm: fix incorrect UA handling
tty: n_gsm: fix wrong command frame length field encoding
tty: n_gsm: fix wrong command retry handling
tty: n_gsm: fix missing explicit ldisc flush
tty: n_gsm: fix insufficient txframe size
tty: n_gsm: fix malformed counter for out of frame data
tty: n_gsm: fix wrong signal octet encoding in convergence layer type 2
x86/cpu: Load microcode during restore_processor_state()
drivers: net: hippi: Fix deadlock in rr_close()
ASoC: wm8731: Disable the regulator when probing fails
bnx2x: fix napi API usage sequence
clk: sunxi: sun9i-mmc: check return value after calling platform_get_resource()
bus: sunxi-rsb: Fix the return value of sunxi_rsb_device_create()
tcp: fix potential xmit stalls caused by TCP_NOTSENT_LOWAT
ip_gre: Make o_seqno start from 0 in native mode
pinctrl: pistachio: fix use of irq_of_parse_and_map()
mtd: rawnand: Fix return value check of wait_for_completion_timeout
ARM: dts: Fix mmc order for omap3-gta04
ARM: OMAP2+: Fix refcount leak in omap_gic_of_init
phy: samsung: exynos5250-sata: fix missing device put in probe error paths
phy: samsung: Fix missing of_node_put() in exynos_sata_phy_probe
ARM: dts: imx6qdl-apalis: Fix sgtl5000 detection issue
hex2bin: fix access beyond string end
hex2bin: make the function hex_to_bin constant-time
serial: 8250: Correct the clock for EndRun PTP/1588 PCIe device
serial: 8250: Also set sticky MCR bits in console restoration
usb: gadget: configfs: clear deactivation flag in configfs_composite_unbind()
usb: gadget: uvc: Fix crash when encoding data for usb request
usb: misc: fix improper handling of refcount in uss720_probe()
iio: magnetometer: ak8975: Fix the error handling in ak8975_power_on()
iio: dac: ad5446: Fix read_raw not returning set value
iio: dac: ad5592r: Fix the missing return value.
xhci: stop polling roothubs after shutdown
USB: serial: option: add Telit 0x1057, 0x1058, 0x1075 compositions
USB: serial: option: add support for Cinterion MV32-WA/MV32-WB
USB: serial: cp210x: add PIDs for Kamstrup USB Meter Reader
USB: serial: whiteheat: fix heap overflow in WHITEHEAT_GET_DTR_RTS
USB: quirks: add STRING quirk for VCOM device
USB: quirks: add a Realtek card reader
lightnvm: disable the subsystem
Revert "net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link"
floppy: disable FDRAWCMD by default
Conflicts:
drivers/mmc/core/core.c
Change-Id: I32ebde76c794d1b17acb9dfc570c22936373a2e9
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Mikulas Patocka
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75a7b4fdd6 |
hex2bin: make the function hex_to_bin constant-time
commit e5be15767e7e284351853cbaba80cde8620341fb upstream. The function hex2bin is used to load cryptographic keys into device mapper targets dm-crypt and dm-integrity. It should take constant time independent on the processed data, so that concurrently running unprivileged code can't infer any information about the keys via microarchitectural convert channels. This patch changes the function hex_to_bin so that it contains no branches and no memory accesses. Note that this shouldn't cause performance degradation because the size of the new function is the same as the size of the old function (on x86-64) - and the new function causes no branch misprediction penalties. I compile-tested this function with gcc on aarch64 alpha arm hppa hppa64 i386 ia64 m68k mips32 mips64 powerpc powerpc64 riscv sh4 s390x sparc32 sparc64 x86_64 and with clang on aarch64 arm hexagon i386 mips32 mips64 powerpc powerpc64 s390x sparc32 sparc64 x86_64 to verify that there are no branches in the generated code. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Robin Peng
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ad18574239 |
Merge android-4.9 (4.9.178) into android-msm-pixel-4.9-lts
Merge 4.9.178 into android-4.9
Linux 4.9.178
KVM: x86: Skip EFER vs. guest CPUID checks for host-initiated writes
ALSA: hda/realtek - Fix for Lenovo B50-70 inverted internal microphone bug
* ext4: fix data corruption caused by overlapping unaligned and aligned IO
fs/ext4/file.c
* ext4: zero out the unused memory region in the extent tree block
fs/ext4/extents.c
* fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount
fs/fs-writeback.c
* writeback: synchronize sync(2) against cgroup writeback membership switches
fs/fs-writeback.c
include/linux/backing-dev-defs.h
mm/backing-dev.c
* fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")
net/core/fib_rules.c
crypto: arm/aes-neonbs - don't access already-freed walk.iv
crypto: salsa20 - don't access already-freed walk.iv
* crypto: gcm - fix incompatibility between "gcm" and "gcm_base"
crypto/gcm.c
* crypto: gcm - Fix error return code in crypto_gcm_create_common()
crypto/gcm.c
ipmi:ssif: compare block number correctly for multi-part return messages
bcache: never set KEY_PTRS of journal key to 0 in journal_reclaim()
bcache: fix a race between cache register and cacheset unregister
Btrfs: do not start a transaction at iterate_extent_inodes()
* ext4: fix ext4_show_options for file systems w/o journal
fs/ext4/super.c
* ext4: actually request zeroing of inode table after grow
fs/ext4/ioctl.c
* jbd2: check superblock mapped prior to committing
fs/jbd2/journal.c
tty/vt: fix write/write race in ioctl(KDSKBSENT) handler
mfd: max77620: Fix swapped FPS_PERIOD_MAX_US values
mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L
ocfs2: fix ocfs2 read inode data panic in ocfs2_iget
* mm/mincore.c: make mincore() more conservative
mm/mincore.c
ASoC: RT5677-SPI: Disable 16Bit SPI Transfers
ASoC: max98090: Fix restore of DAPM Muxes
ALSA: hda/realtek - EAPD turn on later
ALSA: hda/hdmi - Consider eld_valid when reporting jack event
ALSA: hda/hdmi - Read the pin sense from register when repolling
* ALSA: usb-audio: Fix a memory leak bug
sound/usb/mixer.c
crypto: x86/crct10dif-pcl - fix use via crypto_shash_digest()
crypto: crct10dif-generic - fix use via crypto_shash_digest()
crypto: vmx - fix copy-paste error in CTR mode
crypto: chacha20poly1305 - set cra_name correctly
sched/x86: Save [ER]FLAGS on context switch
* arm64: Clear OSDLR_EL1 on CPU boot
arch/arm64/kernel/debug-monitors.c
* arm64: compat: Reduce address limit
arch/arm64/include/asm/processor.h
power: supply: axp288_charger: Fix unchecked return value
ARM: exynos: Fix a leaked reference by adding missing of_node_put
objtool: Fix function fallthrough detection
x86/speculation/mds: Improve CPU buffer clear documentation
x86/speculation/mds: Revert CPU buffer clear on double fault exit
PCI: hv: Fix a memory leak in hv_eject_device_work()
* locking/rwsem: Prevent decrement of reader count before increment
kernel/locking/rwsem-xadd.c
* net: core: another layer of lists, around PF_MEMALLOC skb handling
include/linux/list.h
* UPSTREAM: fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")
net/core/fib_rules.c
* UPSTREAM: bpf: relax inode permission check for retrieving bpf program
kernel/bpf/inode.c
Merge 4.9.177 into android-4.9
Linux 4.9.177
powerpc/booke64: set RI in default MSR
powerpc/lib: fix book3s/32 boot failure due to code patching
drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl
drivers/virt/fsl_hypervisor.c: dereferencing error pointers in ioctl
* bonding: fix arp_validate toggling in active-backup mode
drivers/net/bonding/bond_options.c
* ipv4: Fix raw socket lookup for local traffic
net/ipv4/raw.c
* vrf: sit mtu should not be updated when vrf netdev is the link
net/ipv6/sit.c
vlan: disable SIOCSHWTSTAMP in container
* packet: Fix error path in packet_init
net/packet/af_packet.c
net: ucc_geth - fix Oops when changing number of buffers in the ring
* fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied
net/core/fib_rules.c
* bridge: Fix error path for kobject_init_and_add()
net/bridge/br_if.c
powerpc/64s: Include cpu header
x86/vdso: Pass --eh-frame-hdr to the linker
x86/vdso: Drop implicit common-page-size linker flag
x86: vdso: Use $LD instead of $CC to link
Revert "x86: vdso: Use $LD instead of $CC to link"
Revert "x86/vdso: Drop implicit common-page-size linker flag"
Don't jump to compute_result state from check_result state
rtlwifi: rtl8723ae: Fix missing break in switch statement
* ALSA: pcm: remove SNDRV_PCM_IOCTL1_INFO internal command
include/sound/pcm.h
sound/core/pcm_lib.c
sound/core/pcm_native.c
cw1200: fix missing unlock on error in cw1200_hw_scan()
Input: synaptics-rmi4 - fix possible double free
spi: ST ST95HF NFC: declare missing of table
spi: Micrel eth switch: declare missing of table
gpu: ipu-v3: dp: fix CSC handling
selftests/net: correct the return value for run_netsocktests
drm/sun4i: Set device driver data at bind time for use in unbind
s390: ctcm: fix ctcm_new_device error return code
MIPS: perf: ath79: Fix perfcount IRQ assignment
ipvs: do not schedule icmp errors from tunnels
selftests: netfilter: check icmp pkttoobig errors are set as related
* init: initialize jump labels before command line option parsing
init/main.c
tools lib traceevent: Fix missing equality check for strcmp
KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing
* x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T
include/linux/efi.h
mISDN: Check address length before reading address family
s390/3270: fix lockdep false positive on view->lock
mac80211: fix unaligned access in mesh table hash function
s390/dasd: Fix capacity calculation for large volumes
libnvdimm/btt: Fix a kmemdup failure check
* HID: input: add mapping for "Toggle Display" key
drivers/hid/hid-input.c
* HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys
drivers/hid/hid-input.c
* HID: input: add mapping for Expose/Overview key
drivers/hid/hid-input.c
libnvdimm/namespace: Fix a potential NULL pointer dereference
iio: adc: xilinx: fix potential use-after-free on remove
USB: serial: fix unthrottle races
platform/x86: sony-laptop: Fix unintentional fall-through
* bpf: convert htab map to hlist_nulls
include/linux/list_nulls.h
include/linux/rculist_nulls.h
kernel/bpf/hashtab.c
* bpf: fix struct htab_elem layout
kernel/bpf/hashtab.c
* netfilter: compat: initialize all fields in xt_init
net/netfilter/x_tables.c
ANDROID: cuttlefish_defconfig: Disable DEVTMPFS
ANDROID: Move from clang r349610 to r353983c.
Merge upstream-f2fs-stable-linux-4.9.y into android-4.9
Merge 4.9.176 into android-4.9
Linux 4.9.176
x86/cpu/bugs: Use __initconst for 'const' init data
x86: stop exporting msr-index.h to userland
x86/speculation/mds: Fix documentation typo
Documentation: Correct the possible MDS sysfs values
x86/mds: Add MDSUM variant to the MDS documentation
x86/speculation/mds: Add 'mitigations=' support for MDS
x86/speculation: Support 'mitigations=' cmdline option
* cpu/speculation: Add 'mitigations=' cmdline option
include/linux/cpu.h
kernel/cpu.c
x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
x86/speculation/mds: Fix comment
x86/speculation/mds: Add SMT warning message
x86/speculation: Move arch_smt_update() call to after mitigation decisions
x86/speculation/mds: Add mds=full,nosmt cmdline option
Documentation: Add MDS vulnerability documentation
Documentation: Move L1TF to separate directory
x86/speculation/mds: Add mitigation mode VMWERV
* x86/speculation/mds: Add sysfs reporting for MDS
drivers/base/cpu.c
include/linux/cpu.h
x86/speculation/mds: Add mitigation control for MDS
x86/speculation/mds: Conditionally clear CPU buffers on idle entry
x86/kvm/vmx: Add MDS protection when L1D Flush is not active
x86/speculation/mds: Clear CPU buffers on exit to user
x86/speculation/mds: Add mds_clear_cpu_buffers()
x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
x86/speculation/mds: Add BUG_MSBDS_ONLY
x86/speculation/mds: Add basic bug infrastructure for MDS
x86/speculation: Consolidate CPU whitelists
x86/msr-index: Cleanup bit defines
kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
x86/speculation: Provide IBPB always command line options
x86/speculation: Add seccomp Spectre v2 user space protection mode
x86/speculation: Enable prctl mode for spectre_v2_user
* x86/speculation: Add prctl() control for indirect branch speculation
include/linux/sched.h
include/uapi/linux/prctl.h
x86/speculation: Prevent stale SPEC_CTRL msr content
x86/speculation: Prepare arch_smt_update() for PRCTL mode
x86/speculation: Split out TIF update
x86/speculation: Prepare for conditional IBPB in switch_mm()
x86/speculation: Avoid __switch_to_xtra() calls
x86/process: Consolidate and simplify switch_to_xtra() code
x86/speculation: Prepare for per task indirect branch speculation control
x86/speculation: Add command line control for indirect branch speculation
x86/speculation: Unify conditional spectre v2 print functions
x86/speculataion: Mark command line parser data __initdata
x86/speculation: Mark string arrays const correctly
x86/speculation: Reorder the spec_v2 code
x86/l1tf: Show actual SMT state
* x86/speculation: Rework SMT state change
include/linux/sched/smt.h
kernel/cpu.c
* sched: Add sched_smt_active()
include/linux/sched/smt.h
kernel/sched/core.c
kernel/sched/sched.h
x86/Kconfig: Select SCHED_SMT if SMP enabled
x86/speculation: Reorganize speculation control MSRs update
x86/speculation: Rename SSBD update functions
x86/speculation: Disable STIBP when enhanced IBRS is in use
x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common()
x86/speculation: Remove unnecessary ret variable in cpu_show_common()
x86/speculation: Clean up spectre_v2_parse_cmdline()
x86/speculation: Update the TIF_SSBD comment
x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
x86/speculation: Propagate information about RSB filling mitigation to sysfs
* x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
kernel/cpu.c
* x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
include/linux/ptrace.h
kernel/ptrace.c
Documentation/l1tf: Fix small spelling typo
x86/cpu: Sanitize FAM6_ATOM naming
x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation
* locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file
include/linux/bitops.h
include/linux/bits.h
x86/speculation: Simplify the CPU bug detection logic
* bitops: avoid integer overflow in GENMASK(_ULL)
include/linux/bitops.h
x86/mm: Use WRITE_ONCE() when setting PTEs
x86/microcode: Update the new microcode revision unconditionally
x86/microcode: Make sure boot_cpu_data.microcode is up-to-date
x86/microcode/intel: Check microcode revision before updating sibling threads
x86/microcode/intel: Add a helper which gives the microcode revision
x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features
x86/bugs: Add AMD's SPEC_CTRL MSR usage
x86/bugs: Add AMD's variant of SSB_NO
x86/cpufeatures: Hide AMD-specific speculation flags
x86/MCE: Save microcode revision in machine check records
Merge 4.9.175 into android-4.9
Linux 4.9.175
timer/debug: Change /proc/timer_stats from 0644 to 0600
ASoC: Intel: avoid Oops if DMA setup fails
UAS: fix alignment of scatter/gather segments
* Bluetooth: Align minimum encryption key size for LE and BR/EDR connections
include/net/bluetooth/hci_core.h
net/bluetooth/hci_conn.c
Bluetooth: hidp: fix buffer overflow
scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines
* usb-storage: Set virt_boundary_mask to avoid SG overflows
drivers/usb/storage/scsiglue.c
USB: serial: f81232: fix interrupt worker not stop
* usb: dwc3: Fix default lpm_nyet_threshold value
drivers/usb/dwc3/core.c
* genirq: Prevent use-after-free and work list corruption
kernel/irq/manage.c
ARM: 8680/1: boot/compressed: fix inappropriate Thumb2 mnemonic for __nop
* mm: add 'try_get_page()' helper function
include/linux/mm.h
iommu/amd: Set exclusion range correctly
virtio-blk: limit number of hw queues by nr_cpu_ids
drm/mediatek: fix possible object reference leak
scsi: csiostor: fix missing data copy in csio_scsi_err_handler()
* linux/kernel.h: Use parentheses around argument in u64_to_user_ptr()
include/linux/kernel.h
perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS
drm/mediatek: Fix an error code in mtk_hdmi_dt_parse_pdata()
ASoC: tlv320aic32x4: Fix Common Pins
IB/hfi1: Eliminate opcode tests on mr deref
ASoC: cs4270: Set auto-increment bit for register writes
ASoC: nau8810: fix the issue of widget with prefixed name
* ASoC:soc-pcm:fix a codec fixup issue in TDM case
sound/soc/soc-pcm.c
staging: greybus: power_supply: fix prop-descriptor request size
ubsan: Fix nasty -Wbuiltin-declaration-mismatch GCC-9 warnings
scsi: libsas: fix a race condition when smp task timeout
* f2fs: fix to avoid accessing xattr across the boundary
fs/f2fs/xattr.c
fs/f2fs/xattr.h
* f2fs: fix to avoid potential race on sbi->unusable_block_count access/update
fs/f2fs/checkpoint.c
fs/f2fs/segment.c
fs/f2fs/super.c
* f2fs: add tracepoint for f2fs_filemap_fault()
fs/f2fs/file.c
include/trace/events/f2fs.h
* f2fs: introduce DATA_GENERIC_ENHANCE
fs/f2fs/checkpoint.c
fs/f2fs/data.c
fs/f2fs/f2fs.h
fs/f2fs/file.c
fs/f2fs/gc.c
fs/f2fs/inode.c
fs/f2fs/node.c
fs/f2fs/recovery.c
fs/f2fs/segment.c
fs/f2fs/segment.h
* f2fs: fix to handle error in f2fs_disable_checkpoint()
fs/f2fs/super.c
* f2fs: remove redundant check in f2fs_file_write_iter()
fs/f2fs/file.c
* f2fs: fix to be aware of readonly device in write_checkpoint()
fs/f2fs/checkpoint.c
* f2fs: fix to skip recovery on readonly device
fs/f2fs/checkpoint.c
fs/f2fs/super.c
* f2fs: fix to consider multiple device for readonly check
fs/f2fs/f2fs.h
fs/f2fs/super.c
* f2fs: relocate chksum_offset for large_nat_bitmap feature
fs/f2fs/checkpoint.c
fs/f2fs/f2fs.h
* f2fs: allow unfixed f2fs_checkpoint.checksum_offset
fs/f2fs/checkpoint.c
include/linux/f2fs_fs.h
* f2fs: Replace spaces with tab
fs/f2fs/acl.c
* f2fs: insert space before the open parenthesis '('
fs/f2fs/acl.c
* f2fs: allow address pointer number of dnode aligning to specified size
fs/f2fs/f2fs.h
fs/f2fs/file.c
fs/f2fs/gc.c
fs/f2fs/node.c
fs/f2fs/super.c
include/linux/f2fs_fs.h
* f2fs: introduce f2fs_read_single_page() for cleanup
fs/f2fs/data.c
* f2fs: mark is_extension_exist() inline
fs/f2fs/namei.c
* f2fs: fix to set FI_UPDATE_WRITE correctly
fs/f2fs/data.c
* f2fs: fix to avoid panic in f2fs_inplace_write_data()
fs/f2fs/segment.c
* f2fs: fix to do sanity check on valid block count of segment
fs/f2fs/segment.h
* f2fs: fix to do sanity check on valid node/block count
fs/f2fs/super.c
* f2fs: fix to avoid panic in do_recover_data()
fs/f2fs/recovery.c
* f2fs: fix to do sanity check on free nid
fs/f2fs/node.c
* f2fs: fix to do checksum even if inode page is uptodate
fs/f2fs/inode.c
fs/f2fs/node.c
* f2fs: fix to avoid panic in f2fs_remove_inode_page()
fs/f2fs/node.c
* f2fs: fix to clear dirty inode in error path of f2fs_iget()
fs/f2fs/inode.c
* f2fs: remove new blank line of f2fs kernel message
fs/f2fs/file.c
fs/f2fs/super.c
* f2fs: fix wrong __is_meta_io() macro
fs/f2fs/checkpoint.c
fs/f2fs/data.c
fs/f2fs/f2fs.h
* f2fs: fix to avoid panic in dec_valid_node_count()
fs/f2fs/f2fs.h
* f2fs: fix to avoid panic in dec_valid_block_count()
fs/f2fs/f2fs.h
* f2fs: fix to use inline space only if inline_xattr is enable
fs/f2fs/f2fs.h
* f2fs: fix to retrieve inline xattr space
fs/f2fs/inline.c
* f2fs: fix error path of recovery
fs/f2fs/recovery.c
* f2fs: fix to avoid deadloop in foreground GC
fs/f2fs/gc.c
* f2fs: data: fix warning Using plain integer as NULL pointer
fs/f2fs/data.c
* f2fs: add tracepoint for f2fs_file_write_iter()
fs/f2fs/file.c
include/trace/events/f2fs.h
* f2fs: add comment for conditional compilation statement
fs/f2fs/f2fs.h
* f2fs: fix potential recursive call when enabling data_flush
fs/f2fs/checkpoint.c
fs/f2fs/data.c
* f2fs: improve discard handling with multi-device volumes
fs/f2fs/f2fs.h
fs/f2fs/segment.c
* f2fs: Reduce zoned block device memory usage
fs/f2fs/f2fs.h
fs/f2fs/segment.c
fs/f2fs/super.c
* f2fs: Fix use of number of devices
fs/f2fs/data.c
fs/f2fs/f2fs.h
fs/f2fs/file.c
fs/f2fs/gc.c
fs/f2fs/segment.c
* ANDROID: block/cfq-iosched: make group_idle per io cgroup tunable
block/cfq-iosched.c
Merge remote-tracking branch 'origin/upstream-f2fs-stable-linux-4.9.y' into android-4.9
ANDROID: cuttlefish_defconfig: Enable CONFIG_CPUSETS and CONFIG_CGROUP_SCHEDTUNE
ANDROID: Communicates LMK events to userland where they can be logged
Merge 4.9.174 into android-4.9
Linux 4.9.174
media: v4l2: i2c: ov7670: Fix PLL bypass register values
x86/mce: Improve error message when kernel cannot recover, p2
* selinux: never allow relabeling on context mounts
security/selinux/hooks.c
Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ
scsi: RDMA/srpt: Fix a credit leak for aborted commands
staging: iio: adt7316: fix the dac write calculation
staging: iio: adt7316: fix the dac read calculation
staging: iio: adt7316: allow adt751x to use internal vref for all dacs
perf/x86/amd: Update generic hardware cache events for Family 17h
ARM: iop: don't use using 64-bit DMA masks
ARM: orion: don't use using 64-bit DMA masks
xsysace: Fix error handling in ace_setup
sh: fix multiple function definition build errors
hugetlbfs: fix memory leak for resv_map
net: hns: Fix WARNING when remove HNS driver with SMMU enabled
net: hns: Use NAPI_POLL_WEIGHT for hns driver
net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw()
scsi: storvsc: Fix calculation of sub-channel count
* scsi: core: add new RDAC LENOVO/DE_Series device
drivers/scsi/scsi_devinfo.c
vfio/pci: use correct format characters
rtc: da9063: set uie_unsupported when relevant
* debugfs: fix use-after-free on symlink traversal
fs/debugfs/inode.c
jffs2: fix use-after-free on symlink traversal
net: stmmac: don't log oversized frames
net: stmmac: fix dropping of multi-descriptor RX frames
net: stmmac: don't overwrite discard_frame status
* bonding: show full hw address in sysfs for slave entries
drivers/net/bonding/bond_sysfs_slave.c
net/mlx5: E-Switch, Fix esw manager vport indication for more vport commands
igb: Fix WARN_ONCE on runtime suspend
batman-adv: Reduce tt_global hash refcnt only for removed entry
batman-adv: Reduce tt_local hash refcnt only for removed entry
batman-adv: Reduce claim hash refcnt only for removed entry
rtc: sh: Fix invalid alarm warning for non-enabled alarm
* HID: debug: fix race condition with between rdesc_show() and device removal
drivers/hid/hid-debug.c
HID: logitech: check the return value of create_singlethread_workqueue
nvme-loop: init nvmet_ctrl fatal_err_work when allocate
* USB: core: Fix bug caused by duplicate interface PM usage counter
drivers/usb/core/driver.c
include/linux/usb.h
* USB: core: Fix unterminated string returned by usb_string()
drivers/usb/core/message.c
usb: usbip: fix isoc packet num validation in get_pipe
USB: w1 ds2490: Fix bug caused by improper use of altsetting array
USB: yurex: Fix protection fault after device removal
caif: reduce stack size with KASAN
* arm64: mm: don't print out page table entries on EL0 faults
arch/arm64/mm/fault.c
* arm64: mm: print out correct page table entries
arch/arm64/include/asm/system_misc.h
arch/arm64/mm/fault.c
* kasan: prevent compiler from optimizing away memset in tests
lib/Makefile
* arm64: proc: Set PTE_NG for table entries to avoid traversing them twice
arch/arm64/mm/proc.S
kasan: remove redundant initialization of variable 'real_size'
kasan: avoid -Wmaybe-uninitialized warning
* kasan: add a prototype of task_struct to avoid warning
include/linux/kasan.h
arm64: kasan: avoid bad virt_to_pfn()
x86/unwind: Disable KASAN checks for non-current tasks
mm/kasan: Switch to using __pa_symbol and lm_alias
x86/suspend: fix false positive KASAN warning on suspend/resume
net: phy: marvell: Fix buffer overrun with stats counters
bnxt_en: Improve multicast address setup logic.
* packet: validate msg_namelen in send directly
net/packet/af_packet.c
* ipv6: invert flowlabel sharing check in process and user mode
net/ipv6/ip6_flowlabel.c
* ipv6/flowlabel: wait rcu grace period before put_pid()
net/ipv6/ip6_flowlabel.c
* ipv4: ip_do_fragment: Preserve skb_iif during fragmentation
net/ipv4/ip_output.c
ALSA: line6: use dynamic buffers
* ext4: don't bother checking for encryption key in ->mmap()
fs/ext4/file.c
ANDROID: cuttlefish 4.9: enable CONFIG_CRYPTO_AES_NI_INTEL=y
Merge 4.9.173 into android-4.9
Linux 4.9.173
vfio/type1: Limit DMA mappings per container
leds: pca9532: fix a potential NULL pointer dereference
kconfig/[mn]conf: handle backspace (^H) key
* gpio: of: Fix of_gpiochip_add() error path
drivers/gpio/gpiolib-of.c
libata: fix using DMA buffers on stack
scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN
ceph: fix use-after-free on symlink traversal
usb: u132-hcd: fix resource leak
scsi: qla4xxx: fix a potential NULL pointer dereference
net: ethernet: ti: fix possible object reference leak
net: ibm: fix possible object reference leak
net: xilinx: fix possible object reference leak
NFS: Fix a typo in nfs_init_timeout_values()
staging: rtl8712: uninitialized memory in read_bbreg_hdl()
net: ks8851: Set initial carrier state to down
net: ks8851: Delay requesting IRQ until opened
net: ks8851: Reassert reset pin if chip ID check fails
net: ks8851: Dequeue RX packets explicitly
ARM: dts: pfla02: increase phy reset duration
usb: gadget: net2272: Fix net2272_dequeue()
usb: gadget: net2280: Fix net2280_dequeue()
usb: gadget: net2280: Fix overrun of OUT messages
serial: ar933x_uart: Fix build failure with disabled console
sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init()
netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING
netfilter: nft_set_rbtree: check for inactive element after flag mismatch
qlcnic: Avoid potential NULL pointer dereference
s390: limit brk randomization to 32MB
ARM: dts: bcm283x: Fix hdmi hpd gpio pull
media: vivid: check if the cec_adapter is valid
usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set
usbnet: ipheth: prevent TX queue timeouts when device not ready
Merge 4.9.172 into android-4.9
Linux 4.9.172
Documentation: Add nospectre_v1 parameter
powerpc/fsl: Add FSL_PPC_BOOK3E as supported arch for nospectre_v2 boot arg
* net: IP6 defrag: use rbtrees in nf_conntrack_reasm.c
net/ipv6/netfilter/nf_conntrack_reasm.c
* net: IP6 defrag: use rbtrees for IPv6 defrag
include/net/ipv6_frag.h
net/ipv6/reassembly.c
* ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module
include/net/ipv6.h
include/net/ipv6_frag.h
net/ipv6/netfilter/nf_conntrack_reasm.c
net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
net/ipv6/reassembly.c
* net: IP defrag: encapsulate rbtree defrag code into callable functions
include/net/inet_frag.h
net/ipv4/inet_fragment.c
net/ipv4/ip_fragment.c
* ipv6: frags: fix a lockdep false positive
net/ipv6/reassembly.c
* ipv4: set the tcp_min_rtt_wlen range from 0 to one day
net/ipv4/sysctl_net_ipv4.c
net: stmmac: move stmmac_check_ether_addr() to driver probe
team: fix possible recursive locking when add slaves
net: rds: exchange of 8K and 1M pool
net/mlx5e: ethtool, Remove unsupported SFP EEPROM high pages query
mlxsw: spectrum: Fix autoneg status in ethtool
* ipv4: add sanity checks in ipv4_link_failure()
net/ipv4/route.c
* Revert "block/loop: Use global lock for ioctl() operation."
drivers/block/loop.c
drivers/block/loop.h
tipc: check link name with right length in tipc_nl_compat_link_set
tipc: check bearer name with right length in tipc_nl_compat_bearer_enable
fm10k: Fix a potential NULL pointer dereference
* netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON
net/bridge/netfilter/ebtables.c
NFS: Forbid setting AF_INET6 to "struct sockaddr_in"->sin_family.
* fs/proc/proc_sysctl.c: Fix a NULL pointer dereference
fs/proc/proc_sysctl.c
intel_th: gth: Fix an off-by-one in output unassigning
* slip: make slhc_free() silently accept an error pointer
drivers/net/slip/slhc.c
tipc: handle the err returned from cmd header function
vsock/virtio: fix kernel panic from virtio_transport_reset_no_sock
* USB: Consolidate LPM checks to avoid enabling LPM twice
drivers/usb/core/driver.c
drivers/usb/core/hub.c
drivers/usb/core/message.c
* USB: Add new USB LPM helpers
drivers/usb/core/driver.c
drivers/usb/core/hub.c
drivers/usb/core/message.c
drivers/usb/core/sysfs.c
drivers/usb/core/usb.h
drm/vc4: Fix compilation error reported by kbuild test bot
drm/vc4: Fix memory leak during gpu reset.
ARM: 8857/1: efi: enable CP15 DMB instructions before cleaning the cache
dmaengine: sh: rcar-dmac: With cyclic DMA residue 0 is valid
Input: synaptics-rmi4 - write config register values to the right offset
sunrpc: don't mark uninitialised items as VALID.
nfsd: Don't release the callback slot unless it was actually held
ceph: fix ci->i_head_snapc leak
ceph: ensure d_name stability in ceph_dentry_hash()
* sched/numa: Fix a possible divide-by-zero
kernel/sched/fair.c
IB/rdmavt: Fix frwr memory registration
* trace: Fix preempt_enable_no_resched() abuse
kernel/trace/ring_buffer.c
MIPS: scall64-o32: Fix indirect syscall number load
* tracing: Fix a memory leak by early error exit in trace_pid_write()
kernel/trace/trace.c
cifs: do not attempt cifs operation on smb2+ rename error
* kbuild: simplify ld-option implementation
scripts/Kbuild.include
Merge 4.9.171 into android-4.9
Linux 4.9.171
* kernel/sysctl.c: fix out-of-bounds access when setting file-max
kernel/sysctl.c
Revert "locking/lockdep: Add debug_locks check in __lock_downgrade()"
i2c-hid: properly terminate i2c_hid_dmi_desc_override_table[] array
* percpu: stop printing kernel addresses
mm/percpu.c
* ALSA: info: Fix racy addition/deletion of nodes
sound/core/info.c
* mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n
mm/vmstat.c
device_cgroup: fix RCU imbalance in error case
* sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup
kernel/sched/fair.c
* Revert "kbuild: use -Oz instead of -Os when using clang"
Makefile
perf/x86/amd: Add event map for AMD Family 17h
mac80211: do not call driver wake_tx_queue op during reconfig
rt2x00: do not increment sequence number while re-transmitting
* kprobes: Fix error check when reusing optimized probes
kernel/kprobes.c
kprobes: Mark ftrace mcount handler functions nokprobe
* x86/kprobes: Verify stack frame on kretprobe
include/linux/kprobes.h
* arm64: futex: Restore oldval initialization to work around buggy compilers
arch/arm64/include/asm/futex.h
crypto: x86/poly1305 - fix overflow during partial reduction
Revert "svm: Fix AVIC incomplete IPI emulation"
Revert "scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO"
* ALSA: core: Fix card races between register and disconnect
sound/core/init.c
staging: comedi: ni_usb6501: Fix possible double-free of ->usb_rx_buf
staging: comedi: ni_usb6501: Fix use of uninitialized mutex
staging: comedi: vmk80xx: Fix possible double-free of ->usb_rx_buf
staging: comedi: vmk80xx: Fix use of uninitialized semaphore
io: accel: kxcjk1013: restore the range after resume.
iio: adc: at91: disable adc channel interrupt in timeout case
iio: ad_sigma_delta: select channel when reading register
iio/gyro/bmg160: Use millidegrees for temperature scale
staging: iio: ad7192: Fix ad7193 channel address
KVM: x86: Don't clear EFER during SMM transitions for 32-bit vCPU
CIFS: keep FileInfo handle live during oplock break
tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete
* modpost: file2alias: check prototype of handler
scripts/mod/file2alias.c
* modpost: file2alias: go back to simple devtable lookup
scripts/mod/file2alias.c
* mmc: sdhci: Fix data command CRC error handling
drivers/mmc/host/sdhci.c
crypto: crypto4xx - properly set IV after de- and encrypt
* ipv4: ensure rcu_read_lock() in ipv4_link_failure()
net/ipv4/route.c
* ipv4: recompile ip options in ipv4_link_failure
net/ipv4/route.c
vhost: reject zero size iova range
team: set slave to promisc if team is already in promisc mode
* tcp: tcp_grow_window() needs to respect tcp_space()
net/ipv4/tcp_input.c
net: fou: do not use guehdr after iptunnel_pull_offloads in gue_udp_recv
* net: bridge: multicast: use rcu to access port list from br_multicast_start_querier
net/bridge/br_multicast.c
* net: bridge: fix per-port af_packet sockets
net/bridge/br_input.c
net: atm: Fix potential Spectre v1 vulnerabilities
* bonding: fix event handling for stacked bonds
drivers/net/bonding/bond_main.c
* UPSTREAM: usb: hcd: use correct device pointer for dma ops
drivers/usb/core/hcd.c
UPSTREAM: usb: host: ehci: use correct device pointer for dma ops
* UPSTREAM: usb: separate out sysdev pointer from usb_bus
drivers/usb/core/buffer.c
drivers/usb/core/hcd.c
drivers/usb/core/usb.c
include/linux/usb.h
include/linux/usb/hcd.h
ANDROID: cuttlefish_defconfig: Enable CONFIG_XFRM_STATISTICS
Merge 4.9.170 into android-4.9
Linux 4.9.170
* appletalk: Fix compile regression
include/linux/atalk.h
net: stmmac: Set dma ring length before enabling the DMA
tpm/tpm_crb: Avoid unaligned reads in crb_recv()
* include/linux/swap.h: use offsetof() instead of custom __swapoffset macro
include/linux/swap.h
* lib/div64.c: off by one in shift
lib/div64.c
* appletalk: Fix use-after-free in atalk_proc_exit
include/linux/atalk.h
ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
lkdtm: Add tests for NULL pointer dereference
soc/tegra: pmc: Drop locking from tegra_powergate_is_powered()
iommu/dmar: Fix buffer overflow during PCI bus notification
crypto: sha512/arm - fix crash bug in Thumb2 build
crypto: sha256/arm - fix crash bug in Thumb2 build
* kernel: hung_task.c: disable on suspend
kernel/hung_task.c
cifs: fallback to older infolevels on findfirst queryinfo retry
ACPI / SBS: Fix GPE storm on recent MacBookPro's
ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms
HID: i2c-hid: override HID descriptors for certain devices
serial: uartps: console_setup() can't be placed to init section
* f2fs: fix to do sanity check with current segment number
fs/f2fs/super.c
9p locks: add mount option for lock retry interval
9p: do not trust pdu content for stat item size
rsi: improve kernel thread handling to fix kernel panic
gpio: pxa: handle corner case of unprobed device
* ext4: prohibit fstrim in norecovery mode
fs/ext4/ioctl.c
fix incorrect error code mapping for OBJECTID_NOT_FOUND
x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error
iommu/vt-d: Check capability before disabling protected memory
x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors
x86/hpet: Prevent potential NULL pointer dereference
irqchip/mbigen: Don't clear eventid when freeing an MSI
perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test()
perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test
perf evsel: Free evsel->counts in perf_evsel__exit()
perf hist: Add missing map__put() in error case
perf top: Fix error handling in cmd_top()
perf build-id: Fix memory leak in print_sdt_events()
perf config: Fix a memory leak in collect_config()
perf config: Fix an error in the config template documentation
tools/power turbostat: return the exit status of a command
thermal/int340x_thermal: fix mode setting
thermal/int340x_thermal: Add additional UUIDs
ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration
mmc: davinci: remove extraneous __init annotation
IB/mlx4: Fix race condition between catas error reset and aliasguid flows
ALSA: sb8: add a check for request_region
ALSA: echoaudio: add a check for ioremap_nocache
* ext4: report real fs size after failed resize
fs/ext4/resize.c
* ext4: add missing brelse() in add_new_gdb_meta_bg()
fs/ext4/resize.c
* perf/core: Restore mmap record type correctly
kernel/events/core.c
ARC: u-boot args: check that magic number is correct
ANDROID: cuttlefish_defconfig: Enable L2TP/PPTP
* ANDROID: Makefile: Properly resolve 4.9.169 merge
Makefile
Make arm64 serial port config compatible with crosvm
Merge 4.9.169 into android-4.9
Linux 4.9.169
* PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller
drivers/pci/quirks.c
xtensa: fix return_address
* sched/fair: Do not re-read ->h_load_next during hierarchical load calculation
kernel/sched/fair.c
xen: Prevent buffer overflow in privcmd ioctl
parisc: Use cr16 interval timers unconditionally on qemu
* arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value
arch/arm64/include/asm/futex.h
ARM: dts: at91: Fix typo in ISC_D0 on PC9
virtio: Honour 'may_reduce_num' in vring_create_virtqueue
* genirq: Respect IRQCHIP_SKIP_SET_WAKE in irq_chip_set_wake_parent()
kernel/irq/chip.c
* block: do not leak memory in bio_copy_user_iov()
block/bio.c
Btrfs: do not allow trimming when a fs is mounted with the nologreplay option
ASoC: fsl_esai: fix channel swap issue when stream starts
* include/linux/bitrev.h: fix constant bitrev
include/linux/bitrev.h
parisc: Detect QEMU earlier in boot process
ALSA: seq: Fix OOB-reads from strlcpy
* ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type
net/ipv6/ip6_tunnel.c
* net: ethtool: not call vzalloc for zero sized memory request
net/core/ethtool.c
* netns: provide pure entropy for net_hash_mix()
include/net/net_namespace.h
include/net/netns/hash.h
net/core/net_namespace.c
net/mlx5e: Add a lock on tir list
bnxt_en: Improve RX consumer index validity check.
bnxt_en: Reset device on RX buffer errors.
* vrf: check accept_source_route on the original netdevice
include/net/ip.h
net/ipv4/ip_input.c
net/ipv4/ip_options.c
tcp: Ensure DCTCP reacts to losses
sctp: initialize _pad of sockaddr_in before copying to user memory
qmi_wwan: add Olicard 600
openvswitch: fix flow actions reallocation
net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock().
kcm: switch order of device registration to fix a crash
* ipv6: sit: reset ip header pointer in ipip6_rcv
net/ipv6/sit.c
* ipv6: Fix dangling pointer when ipv6 fragment
net/ipv6/ip6_output.c
* tty: ldisc: add sysctl to prevent autoloading of ldiscs
drivers/tty/Kconfig
drivers/tty/tty_io.c
drivers/tty/tty_ldisc.c
* tty: mark Siemens R3964 line discipline as BROKEN
drivers/char/Kconfig
* arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region
arch/arm64/mm/init.c
powerpc/security: Fix spectre_v2 reporting
powerpc/fsl: Fix the flush of branch predictor.
powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup'
powerpc/fsl: Update Spectre v2 reporting
powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used
powerpc/fsl: Flush branch predictor when entering KVM
powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit)
powerpc/fsl: Flush the branch predictor at each kernel entry (64bit)
powerpc/fsl: Add nospectre_v2 command line argument
powerpc/fsl: Emulate SPRN_BUCSR register
powerpc/fsl: Fix spectre_v2 mitigations reporting
powerpc/fsl: Add macro to flush the branch predictor
powerpc/fsl: Add infrastructure to fixup branch predictor flush
powerpc/powernv: Query firmware for count cache flush settings
powerpc/pseries: Query hypervisor for count cache flush settings
powerpc/64s: Add support for software count cache flush
powerpc/64s: Add new security feature flags for count cache flush
powerpc/asm: Add a patch_site macro & helpers for patching instructions
powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit platforms
powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E
powerpc/64: Make meltdown reporting Book3S 64 specific
powerpc/64: Call setup_barrier_nospec() from setup_arch()
powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC
powerpc/64: Make stf barrier PPC_BOOK3S_64 specific.
powerpc/64: Disable the speculation barrier from the command line
powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2
powerpc/64s: Enhance the information in cpu_show_spectre_v1()
powerpc/64: Use barrier_nospec in syscall entry
powerpc: Use barrier_nospec in copy_from_user()
powerpc/64s: Enable barrier_nospec based on firmware settings
powerpc/64s: Patch barrier_nospec in modules
powerpc: Avoid code patching freed init sections
powerpc/64s: Add support for ori barrier_nospec patching
powerpc/64s: Add barrier_nospec
powerpc: Fix invalid use of register expressions
* lib/string.c: implement a basic bcmp
include/linux/string.h
lib/string.c
x86/vdso: Drop implicit common-page-size linker flag
x86: vdso: Use $LD instead of $CC to link
* kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD
Makefile
powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM
x86/power: Make restore_processor_context() sane
x86/power/32: Move SYSENTER MSR restoration to fix_processor_context()
x86/power/64: Use struct desc_ptr for the IDT in struct saved_context
x86/power: Fix some ordering bugs in __restore_processor_context()
* fscrypt: remove filesystem specific build config option
fs/crypto/Kconfig
fs/crypto/fscrypt_private.h
fs/ext4/Kconfig
fs/ext4/dir.c
fs/ext4/ext4.h
fs/ext4/inode.c
fs/ext4/ioctl.c
fs/ext4/namei.c
fs/ext4/page-io.c
fs/ext4/readpage.c
fs/ext4/super.c
fs/ext4/sysfs.c
fs/f2fs/Kconfig
fs/f2fs/f2fs.h
fs/f2fs/super.c
fs/f2fs/sysfs.c
include/linux/fs.h
include/linux/fscrypt.h
* f2fs: use IS_ENCRYPTED() to check encryption status
fs/f2fs/data.c
fs/f2fs/dir.c
fs/f2fs/f2fs.h
fs/f2fs/file.c
fs/f2fs/inode.c
fs/f2fs/namei.c
* ext4: use IS_ENCRYPTED() to check encryption status
fs/ext4/dir.c
fs/ext4/ext4.h
fs/ext4/ext4_jbd2.h
fs/ext4/extents.c
fs/ext4/file.c
fs/ext4/ialloc.c
fs/ext4/inode.c
fs/ext4/move_extent.c
fs/ext4/namei.c
fs/ext4/page-io.c
fs/ext4/readpage.c
* fscrypt: return -EXDEV for incompatible rename or link into encrypted dir
fs/crypto/hooks.c
fs/crypto/policy.c
include/linux/fscrypt.h
* fscrypt: remove CRYPTO_CTR dependency
fs/crypto/Kconfig
* fscrypt: add Adiantum support / removed speck
fs/crypto/crypto.c
fs/crypto/fname.c
fs/crypto/fscrypt_private.h
fs/crypto/keyinfo.c
fs/crypto/policy.c
include/uapi/linux/fs.h
* ANDROID: Makefile: Add '-fsplit-lto-unit' to cfi-clang-flags
Makefile
Merge 4.9.168 into android-4.9
Linux 4.9.168
ACPI / video: Extend chassis-type detection with a "Lunch Box" check
* drm/dp/mst: Configure no_stop_bit correctly for remote i2c xfers
drivers/gpu/drm/drm_dp_mst_topology.c
dmaengine: tegra: avoid overflow of byte tracking
x86/build: Mark per-CPU symbols as absolute explicitly for LLD
wlcore: Fix memory leak in case wl12xx_fetch_firmware failure
* selinux: do not override context on context mounts
security/selinux/hooks.c
x86/build: Specify elf_i386 linker emulation explicitly for i386 objects
drm/nouveau: Stop using drm_crtc_force_disable
regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting
media: s5p-jpeg: Check for fmt_ver_flag when doing fmt enumeration
netfilter: physdev: relax br_netfilter dependency
dmaengine: qcom_hidma: assign channel cookie correctly
dmaengine: imx-dma: fix warning comparison of distinct pointer types
hpet: Fix missing '=' character in the __setup() code of hpet_mmap_enable
HID: intel-ish: ipc: handle PIMR before ish_wakeup also clear PISR busy_clear bit
soc/tegra: fuse: Fix illegal free of IO base address
hwrng: virtio - Avoid repeated init of completion
media: mt9m111: set initial frame size other than 0x0
powerpc/pseries: Perform full re-add of CPU for topology update post-migration
* tty: increase the default flip buffer limit to 2*640K
drivers/tty/tty_buffer.c
ARM: avoid Cortex-A9 livelock on tight dmb loops
mt7601u: bump supported EEPROM version
soc: qcom: gsbi: Fix error handling in gsbi_probe()
ARM: dts: lpc32xx: Remove leading 0x and 0s from bindings notation
efi/memattr: Don't bail on zero VA if it equals the region's PA
ASoC: fsl-asoc-card: fix object reference leaks in fsl_asoc_card_probe
e1000e: fix cyclic resets at link up with active tx
cdrom: Fix race condition in cdrom_sysctl_register
* fbdev: fbmem: fix memory access if logo is bigger than the screen
drivers/video/fbdev/core/fbmem.c
iw_cxgb4: fix srqidx leak during connection abort
* genirq: Avoid summation loops for /proc/stat
include/linux/irqdesc.h
kernel/irq/chip.c
kernel/irq/internals.h
kernel/irq/irqdesc.c
bcache: improve sysfs_strtoul_clamp()
bcache: fix input overflow to sequential_cutoff
bcache: fix input overflow to cache set sysfs file io_error_halflife
* usb: f_fs: Avoid crash due to out-of-scope stack ptr access
drivers/usb/gadget/function/f_fs.c
* ALSA: PCM: check if ops are defined before suspending PCM
sound/core/pcm_native.c
ARM: 8833/1: Ensure that NEON code always compiles with Clang
* kprobes: Prohibit probing on bsearch()
lib/bsearch.c
ACPI / video: Refactor and fix dmi_is_desktop()
iwlwifi: pcie: fix emergency path
leds: lp55xx: fix null deref on firmware load failure
HID: intel-ish-hid: avoid binding wrong ishtp_cl_device
* vfs: fix preadv64v2 and pwritev64v2 compat syscalls with offset == -1
fs/read_write.c
media: mx2_emmaprp: Correct return type for mem2mem buffer helpers
media: s5p-g2d: Correct return type for mem2mem buffer helpers
media: s5p-jpeg: Correct return type for mem2mem buffer helpers
media: sh_veu: Correct return type for mem2mem buffer helpers
SoC: imx-sgtl5000: add missing put_device()
perf test: Fix failure of 'evsel-tp-sched' test on s390
scsi: megaraid_sas: return error when create DMA pool failed
IB/mlx4: Increase the timeout for CM cache
mlxsw: spectrum: Avoid -Wformat-truncation warnings
e1000e: Fix -Wformat-truncation warnings
mmc: omap: fix the maximum timeout setting
iommu/io-pgtable-arm-v7s: Only kmemleak_ignore L2 tables
ARM: 8840/1: use a raw_spinlock_t in unwind
coresight: etm4x: Add support to enable ETMv4.2
* scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
drivers/scsi/scsi_scan.c
usb: chipidea: Grab the (legacy) USB PHY by phandle first
crypto: crypto4xx - add missing of_node_put after of_device_is_available
wil6210: check null pointer in _wil_cfg80211_merge_extra_ies
tools lib traceevent: Fix buffer overflow in arg_eval
* fs: fix guard_bio_eod to check for real EOD errors
fs/buffer.c
* jbd2: fix invalid descriptor block checksum
fs/jbd2/commit.c
cifs: Fix NULL pointer dereference of devname
dm thin: add sanity checks to thin-pool and external snapshot creation
cifs: use correct format characters
* fs/file.c: initialize init_files.resize_wait
fs/file.c
f2fs: do not use mutex lock in atomic context
ocfs2: fix a panic problem caused by o2cb_ctl
mm/slab.c: kmemleak no scan alien caches
* mm/vmalloc.c: fix kernel BUG at mm/vmalloc.c:512!
mm/vmalloc.c
mm/page_ext.c: fix an imbalance with kmemleak
* mm/cma.c: cma_declare_contiguous: correct err handling
mm/cma.c
scsi: hisi_sas: Set PHY linkrate when disconnected
enic: fix build warning without CONFIG_CPUMASK_OFFSTACK
* sysctl: handle overflow for file-max
kernel/sysctl.c
* include/linux/relay.h: fix percpu annotation in struct rchan
include/linux/relay.h
gpio: gpio-omap: fix level interrupt idling
* tracing: kdb: Fix ftdump to not sleep
include/linux/ring_buffer.h
kernel/trace/ring_buffer.c
kernel/trace/trace.c
h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux-
CIFS: fix POSIX lock leak and invalid ptr deref
* i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA
drivers/i2c/i2c-core.c
mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified
tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped
tty/serial: atmel: Add is_half_duplex helper
* lib/int_sqrt: optimize initial value compute
lib/int_sqrt.c
* ext4: cleanup bh release code in ext4_ind_remove_space()
fs/ext4/indirect.c
* arm64: debug: Ensure debug handlers check triggering exception level
arch/arm64/kernel/probes/kprobes.c
* arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals
arch/arm64/mm/fault.c
* ext4: switch to fscrypt_prepare_setattr()
fs/ext4/inode.c
* ext4: switch to fscrypt_prepare_rename()
fs/ext4/namei.c
* ext4: switch to fscrypt_prepare_link()
fs/ext4/namei.c
* ext4: switch to fscrypt_file_open()
fs/ext4/file.c
* ext4, dax: set ext4_dax_aops for dax files
fs/ext4/inode.c
ANDROID: cuttlefish_defconfig: Enable CONFIG_OVERLAY_FS
ANDROID: cuttlefish: enable CONFIG_NET_SCH_INGRESS=y
Merge 4.9.167 into android-4.9
Linux 4.9.167
* arm64: support keyctl() system call in 32-bit mode
arch/arm64/Kconfig
* Revert "USB: core: only clean up what we allocated"
drivers/usb/core/config.c
* xhci: Fix port resume done detection for SS ports with LPM enabled
drivers/usb/host/xhci-ring.c
drivers/usb/host/xhci.h
* USB: gadget: f_hid: fix deadlock in f_hidg_write()
drivers/usb/gadget/function/f_hid.c
KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts
KVM: Reject device ioctls from processes other than the VM's creator
x86/smp: Enforce CONFIG_HOTPLUG_CPU when SMP=y
* cpu/hotplug: Prevent crash when CPU bringup fails on CONFIG_HOTPLUG_CPU=n
kernel/cpu.c
perf intel-pt: Fix TSC slip
usb: host: xhci-rcar: Add XHCI_TRUST_TX_LENGTH quirk
* usb: common: Consider only available nodes for dr_mode
drivers/usb/common/common.c
gpio: adnp: Fix testing wrong value in adnp_gpio_direction_input
* fs/proc/proc_sysctl.c: fix NULL pointer dereference in put_links
fs/proc/proc_sysctl.c
Disable kgdboc failed by echo space to /sys/module/kgdboc/parameters/kgdboc
USB: serial: option: add Olicard 600
USB: serial: option: set driver_info for SIM5218 and compatibles
USB: serial: mos7720: fix mos_parport refcount imbalance on error path
USB: serial: ftdi_sio: add additional NovaTech products
USB: serial: cp210x: add new device id
serial: sh-sci: Fix setting SCSCR_TIE while transferring data
serial: max310x: Fix to avoid potential NULL pointer dereference
staging: vt6655: Fix interrupt race condition on device start up.
staging: vt6655: Remove vif check from vnt_interrupt
staging: comedi: ni_mio_common: Fix divide-by-zero for DIO cmdtest
tty: atmel_serial: fix a potential NULL pointer dereference
scsi: zfcp: fix scsi_eh host reset with port_forced ERP for non-NPIV FCP devices
scsi: zfcp: fix rport unblock if deleted SCSI devices on Scsi_Host
* scsi: sd: Quiesce warning if device does not report optimal I/O size
drivers/scsi/sd.c
* scsi: sd: Fix a race between closing an sd device and sd I/O
drivers/scsi/sd.c
* fs/open.c: allow opening only regular files during execve()
fs/open.c
* ALSA: pcm: Don't suspend stream in unrecoverable PCM state
sound/core/pcm_native.c
ALSA: pcm: Fix possible OOB access in PCM oss plugins
ALSA: seq: oss: Fix Spectre v1 vulnerability
* ALSA: rawmidi: Fix potential Spectre v1 vulnerability
sound/core/rawmidi.c
net: dsa: qca8k: remove leftover phy accessors
NFSv4.1 don't free interrupted slot on open
powerpc: bpf: Fix generation of load/store DW instructions
ARM: imx6q: cpuidle: fix bug that CPU might not wake up at expected time
btrfs: raid56: properly unmap parity page in finish_parity_scrub()
btrfs: remove WARN_ON in log_dir_items
* tun: add a missing rcu_read_unlock() in error path
drivers/net/tun.c
* tun: properly test for IFF_UP
drivers/net/tun.c
mac8390: Fix mmio access size probe
* sctp: get sctphdr by offset in sctp_compute_cksum
include/net/sctp/checksum.h
vxlan: Don't call gro_cells_destroy() before device is unregistered
* tcp: do not use ipv6 header for ipv4 flow
net/ipv6/tcp_ipv6.c
* packets: Always register packet sk in the same order
include/net/sock.h
net/packet/af_packet.c
net: rose: fix a possible stack overflow
* net/packet: Set __GFP_NOWARN upon allocation in alloc_pg_vec
net/packet/af_packet.c
mISDN: hfcpci: Test both vendor & device ID for Digium HFC4S
dccp: do not use ipv6 header for ipv4 flow
stmmac: copy unicast mac address to MAC registers
* cfg80211: size various nl80211 messages correctly
net/wireless/nl80211.c
video: fbdev: Set pixclock = 0 in goldfishfb
* Bluetooth: Verify that l2cap_get_conf_opt provides large enough buffer
net/bluetooth/l2cap_core.c
* Bluetooth: Check L2CAP option sizes returned from l2cap_get_conf_opt
net/bluetooth/l2cap_core.c
UPSTREAM: virt_wifi: Remove REGULATORY_WIPHY_SELF_MANAGED
Merge 4.9.166 into android-4.9
Linux 4.9.166
ath10k: avoid possible string overflow
power: supply: charger-manager: Fix incorrect return value
pwm-backlight: Enable/disable the PWM before/after LCD enable toggle.
* rtc: Fix overflow when converting time64_t to rtc_time
drivers/rtc/rtc-lib.c
* scsi: ufs: fix wrong command type of UTRD for UFSHCI v2.1
drivers/scsi/ufs/ufshcd.c
* USB: core: only clean up what we allocated
drivers/usb/core/config.c
* lib/int_sqrt: optimize small argument
lib/int_sqrt.c
serial: sprd: clear timeout interrupt only rather than all interrupts
* arm64: traps: disable irq in die()
arch/arm64/kernel/traps.c
* Hang/soft lockup in d_invalidate with simultaneous calls
fs/dcache.c
serial: sprd: adjust TIMEOUT to a big value
* tcp/dccp: drop SYN packets if accept queue is full
include/net/inet_connection_sock.h
net/ipv4/tcp_input.c
ALSA: hda - Enforces runtime_resume after S3 and S4 for each codec
ALSA: hda - Record the current power state before suspend/resume calls
locking/lockdep: Add debug_locks check in __lock_downgrade()
* Bluetooth: Fix decrementing reference count twice in releasing socket
net/bluetooth/hci_sock.c
* media: v4l2-ctrls.c/uvc: zero v4l2_event
drivers/media/v4l2-core/v4l2-ctrls.c
* ext4: brelse all indirect buffer in ext4_ind_remove_space()
fs/ext4/indirect.c
* ext4: fix data corruption caused by unaligned direct AIO
fs/ext4/file.c
* ext4: fix NULL pointer dereference while journal is aborted
fs/ext4/ext4_jbd2.h
objtool: Move objtool_file struct off the stack
* futex: Ensure that futex address is aligned in handle_futex_death()
kernel/futex.c
MIPS: Fix kernel crash for R6 in jump label branch function
MIPS: Ensure ELF appended dtb is relocated
mips: loongson64: lemote-2f: Add IRQF_NO_SUSPEND to "cascade" irqaction.
udf: Fix crash on IO error during truncate
libceph: wait for latest osdmap in ceph_monc_blacklist_add()
iommu/amd: fix sg->dma_address for sg->offset bigger than PAGE_SIZE
drm/vmwgfx: Don't double-free the mode stored in par->set_mode
mmc: pxamci: fix enum type confusion
Change-Id: I240c51a5bde3c2c7a9ada58c87d5d0966f26cb78
Signed-off-by: Robin Peng <robinpeng@google.com>
|
||
|
Jann Horn
|
ef29106690 |
linux/kernel.h: Use parentheses around argument in u64_to_user_ptr()
[ Upstream commit a0fe2c6479aab5723239b315ef1b552673f434a3 ] Use parentheses around uses of the argument in u64_to_user_ptr() to ensure that the cast doesn't apply to part of the argument. There are existing uses of the macro of the form u64_to_user_ptr(A + B) which expands to (void __user *)(uintptr_t)A + B (the cast applies to the first operand of the addition, the addition is a pointer addition). This happens to still work as intended, the semantic difference doesn't cause a difference in behavior. But I want to use u64_to_user_ptr() with a ternary operator in the argument, like so: u64_to_user_ptr(A ? B : C) This currently doesn't work as intended. Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Cc: Andrei Vagin <avagin@openvz.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Kees Cook <keescook@chromium.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: NeilBrown <neilb@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Qiaowei Ren <qiaowei.ren@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20190329214652.258477-1-jannh@google.com Signed-off-by: Sasha Levin <sashal@kernel.org> |
||
|
Cyan_Hsieh
|
e9eb3984e2 |
Merge LA.UM.7.3.9.08.00.00.385.328 via branch qcom-msm-4.9 into android-msm-bluecross-4.9
Merge Qualcomm's LA.UM.7.3.9.08.00.00.385.328 Removed camera related changes with git checkout partner/android-msm-bluecross-4.9 -- drivers/media/platform/msm/camera/ \ drivers/media/platform/msm/camera_v2/ \ include/uapi/media/cam_req_mgr.h Conflicts: Documentation/devicetree/bindings/drm/msm/mdss-dsi-panel.txt Documentation/filesystems/f2fs.txt Makefile arch/Kconfig arch/arm64/Kconfig arch/arm64/boot/dts/qcom/sdm845-v2.dtsi arch/arm64/crypto/Makefile arch/arm64/kernel/entry.S arch/arm64/kernel/vdso/Makefile drivers/firmware/efi/libstub/Makefile drivers/gpu/drm/msm/dsi-staging/dsi_display.c drivers/gpu/drm/msm/sde/sde_kms.c drivers/hwtracing/coresight/coresight-event.c drivers/media/platform/msm/camera_v2/sensor/csiphy/msm_csiphy.c drivers/misc/Makefile drivers/power/supply/qcom/Kconfig drivers/power/supply/qcom/Makefile fs/crypto/fscrypt_private.h fs/f2fs/data.c fs/f2fs/f2fs.h fs/f2fs/file.c fs/f2fs/segment.c fs/f2fs/super.c fs/f2fs/inode.c fs/f2fs/sysfs.c include/linux/compiler-clang.h include/linux/compiler.h include/linux/fscrypt.h include/linux/init.h include/linux/jiffies.h include/trace/events/sched.h kernel/Makefile kernel/cfi.c kernel/sched/core.c kernel/sched/fair.c mm/filemap.c Bug: 80274434 Change-Id: I8640c44aa3978666364fd08bb9b8748e95a1e3ff Signed-off-by: aaronding <aaronding@google.com> Signed-off-by: Cyan_Hsieh <cyanhsieh@google.com> |
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Thierry Strudel
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b4621b2551 |
Revert "Add compiler error for trace_printk usage in Pixel kernel"
The patch should be active only on production server build, when
BUILD_NUMBER environment variable is set instead of always being
active even on local developer builds.
Bug: 72894705
This reverts commit
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Wei Wang
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76d03c5191 |
Add compiler error for trace_printk usage in Pixel kernel
Test: see compiler error if trace_printk used in production Bug: 72894705 Change-Id: Ie91342b4745f5501d9ba0dcf973a865ed0da3f02 Signed-off-by: Wei Wang <wvw@google.com> |
||
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Dan Williams
|
807e336589 |
libnvdimm, dax: fix 1GB-aligned namespaces vs physical misalignment
commit 41fce90f26333c4fa82e8e43b9ace86c4e8a0120 upstream.
The following namespace configuration attempt:
# ndctl create-namespace -e namespace0.0 -m devdax -a 1G -f
libndctl: ndctl_dax_enable: dax0.1: failed to enable
Error: namespace0.0: failed to enable
failed to reconfigure namespace: No such device or address
...fails when the backing memory range is not physically aligned to 1G:
# cat /proc/iomem | grep Persistent
210000000-30fffffff : Persistent Memory (legacy)
In the above example the 4G persistent memory range starts and ends on a
256MB boundary.
We handle this case correctly when needing to handle cases that violate
section alignment (128MB) collisions against "System RAM", and we simply
need to extend that padding/truncation for the 1GB alignment use case.
Cc: <stable@vger.kernel.org>
Fixes:
|
||
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Ian Abbott
|
f9ac6ec71c |
UPSTREAM: kernel.h: handle pointers to arrays better in container_of()
If the first parameter of container_of() is a pointer to a
non-const-qualified array type (and the third parameter names a
non-const-qualified array member), the local variable __mptr will be
defined with a const-qualified array type. In ISO C, these types are
incompatible. They work as expected in GNU C, but some versions will
issue warnings. For example, GCC 4.9 produces the warning
"initialization from incompatible pointer type".
Here is an example of where the problem occurs:
-------------------------------------------------------
#include <linux/kernel.h>
#include <linux/module.h>
MODULE_LICENSE("GPL");
struct st {
int a;
char b[16];
};
static int __init example_init(void) {
struct st t = { .a = 101, .b = "hello" };
char (*p)[16] = &t.b;
struct st *x = container_of(p, struct st, b);
printk(KERN_DEBUG "%p %p\n", (void *)&t, (void *)x);
return 0;
}
static void __exit example_exit(void) {
}
module_init(example_init);
module_exit(example_exit);
-------------------------------------------------------
Building the module with gcc-4.9 results in these warnings (where '{m}'
is the module source and '{k}' is the kernel source):
-------------------------------------------------------
In file included from {m}/example.c:1:0:
{m}/example.c: In function `example_init':
{k}/include/linux/kernel.h:854:48: warning: initialization from incompatible pointer type
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
{m}/example.c:14:17: note: in expansion of macro `container_of'
struct st *x = container_of(p, struct st, b);
^
{k}/include/linux/kernel.h:854:48: warning: (near initialization for `x')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
{m}/example.c:14:17: note: in expansion of macro `container_of'
struct st *x = container_of(p, struct st, b);
^
-------------------------------------------------------
Replace the type checking performed by the macro to avoid these
warnings. Make sure `*(ptr)` either has type compatible with the
member, or has type compatible with `void`, ignoring qualifiers. Raise
compiler errors if this is not true. This is stronger than the previous
behaviour, which only resulted in compiler warnings for a type mismatch.
[arnd@arndb.de: fix new warnings for container_of()]
Link: http://lkml.kernel.org/r/20170620200940.90557-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/20170525120316.24473-7-abbotti@mev.co.uk
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 67861121
(cherry picked from commit c7acec713d14c6ce8a20154f9dfda258d6bcad3b)
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I4cc400f980ca58372fc27c4433dd5b79b1cef50a
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Johannes Berg
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589a9785ee |
min/max: remove sparse warnings when they're nested
Currently, when min/max are nested within themselves, sparse will warn:
warning: symbol '_min1' shadows an earlier one
originally declared here
warning: symbol '_min1' shadows an earlier one
originally declared here
warning: symbol '_min2' shadows an earlier one
originally declared here
This also immediately happens when min3() or max3() are used.
Since sparse implements __COUNTER__, we can use __UNIQUE_ID() to
generate unique variable names, avoiding this.
Link: http://lkml.kernel.org/r/1471519773-29882-1-git-send-email-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Peter Zijlstra
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9af6528ee9 |
sched/core: Optimize __schedule()
Oleg noted that by making do_exit() use __schedule() for the TASK_DEAD context switch, we can avoid the TASK_DEAD special case currently in __schedule() because that avoids the extra preempt_disable() from schedule(). In order to facilitate this, create a do_task_dead() helper which we place in the scheduler code, such that it can access __schedule(). Also add some __noreturn annotations to the functions, there's no coming back from do_exit(). Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Cheng Chao <cs.os.kernel@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: akpm@linux-foundation.org Cc: chris@chris-wilson.co.uk Cc: tj@kernel.org Link: http://lkml.kernel.org/r/20160913163729.GB5012@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Luis de Bethencourt
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9d5059c959 |
dynamic_debug: only add header when used
kernel.h header doesn't directly use dynamic debug, instead we can include it in module.c (which used it via kernel.h). printk.h only uses it if CONFIG_DYNAMIC_DEBUG is on, changing the inclusion to only happen in that case. Link: http://lkml.kernel.org/r/1468429793-16917-1-git-send-email-luisbg@osg.samsung.com [luisbg@osg.samsung.com: include dynamic_debug.h in drb_int.h] Link: http://lkml.kernel.org/r/1468447828-18558-2-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Cc: Borislav Petkov <bp@suse.de> Cc: Michal Nazarewicz <mina86@mina86.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Daniel Bristot de Oliveira
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088e9d253d |
rcu: sysctl: Panic on RCU Stall
It is not always easy to determine the cause of an RCU stall just by analysing the RCU stall messages, mainly when the problem is caused by the indirect starvation of rcu threads. For example, when preempt_rcu is not awakened due to the starvation of a timer softirq. We have been hard coding panic() in the RCU stall functions for some time while testing the kernel-rt. But this is not possible in some scenarios, like when supporting customers. This patch implements the sysctl kernel.panic_on_rcu_stall. If set to 1, the system will panic() when an RCU stall takes place, enabling the capture of a vmcore. The vmcore provides a way to analyze all kernel/tasks states, helping out to point to the culprit and the solution for the stall. The kernel.panic_on_rcu_stall sysctl is disabled by default. Changes from v1: - Fixed a typo in the git log - The if(sysctl_panic_on_rcu_stall) panic() is in a static function - Fixed the CONFIG_TINY_RCU compilation issue - The var sysctl_panic_on_rcu_stall is now __read_mostly Cc: Jonathan Corbet <corbet@lwn.net> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Arnaldo Carvalho de Melo <acme@kernel.org> Tested-by: "Luis Claudio R. Goncalves" <lgoncalv@redhat.com> Signed-off-by: Daniel Bristot de Oliveira <bristot@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
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Linus Torvalds
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2f37dd131c |
Merge tag 'staging-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver updates from Greg KH: "Here's the big staging and iio driver update for 4.7-rc1. I think we almost broke even with this release, only adding a few more lines than we removed, which isn't bad overall given that there's a bunch of new iio drivers added. The Lustre developers seem to have woken up from their sleep and have been doing a great job in cleaning up the code and pruning unused or old cruft, the filesystem is almost readable :) Other than that, just a lot of basic coding style cleanups in the churn. All have been in linux-next for a while with no reported issues" * tag 'staging-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (938 commits) Staging: emxx_udc: emxx_udc: fixed coding style issue staging/gdm724x: fix "alignment should match open parenthesis" issues staging/gdm724x: Fix avoid CamelCase staging: unisys: rename misleading var ii with frag staging: unisys: visorhba: switch success handling to error handling staging: unisys: visorhba: main path needs to flow down the left margin staging: unisys: visorinput: handle_locking_key() simplifications staging: unisys: visorhba: fail gracefully for thread creation failures staging: unisys: visornic: comment restructuring and removing bad diction staging: unisys: fix format string %Lx to %llx for u64 staging: unisys: remove unused struct members staging: unisys: visorchannel: correct variable misspelling staging: unisys: visorhba: replace functionlike macro with function staging: dgnc: Need to check for NULL of ch staging: dgnc: remove redundant condition check staging: dgnc: fix 'line over 80 characters' staging: dgnc: clean up the dgnc_get_modem_info() staging: lustre: lnet: enable configuration per NI interface staging: lustre: o2iblnd: properly set ibr_why staging: lustre: o2iblnd: remove last of kiblnd_tunables_fini ... |
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Rasmus Villemoes
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48a270554a |
include/linux: apply __malloc attribute
Attach the malloc attribute to a few allocation functions. This helps
gcc generate better code by telling it that the return value doesn't
alias any existing pointers (which is even more valuable given the
pessimizations implied by -fno-strict-aliasing).
A simple example of what this allows gcc to do can be seen by looking at
the last part of drm_atomic_helper_plane_reset:
plane->state = kzalloc(sizeof(*plane->state), GFP_KERNEL);
if (plane->state) {
plane->state->plane = plane;
plane->state->rotation = BIT(DRM_ROTATE_0);
}
which compiles to
e8 99 bf d6 ff callq ffffffff8116d540 <kmem_cache_alloc_trace>
48 85 c0 test %rax,%rax
48 89 83 40 02 00 00 mov %rax,0x240(%rbx)
74 11 je ffffffff814015c4 <drm_atomic_helper_plane_reset+0x64>
48 89 18 mov %rbx,(%rax)
48 8b 83 40 02 00 00 mov 0x240(%rbx),%rax [*]
c7 40 40 01 00 00 00 movl $0x1,0x40(%rax)
With this patch applied, the instruction at [*] is elided, since the
store to plane->state->plane is known to not alter the value of
plane->state.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Gustavo Padovan
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3ed605bc8a |
kernel.h: add u64_to_user_ptr()
This function had copies in 3 different files. Unify them in kernel.h. Cc: Joe Perches <joe@perches.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Rob Clark <robdclark@gmail.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Acked-by: Daniel Vetter <daniel.vetter@intel.com> [drm/i915/] Acked-by: Rob Clark <robdclark@gmail.com> [drm/msm/] Acked-by: Lucas Stach <l.stach@pengutronix.de> [drm/etinav/] Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linus Torvalds
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e46b4e2b46 |
Merge tag 'trace-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"Nothing major this round. Mostly small clean ups and fixes.
Some visible changes:
- A new flag was added to distinguish traces done in NMI context.
- Preempt tracer now shows functions where preemption is disabled but
interrupts are still enabled.
Other notes:
- Updates were done to function tracing to allow better performance
with perf.
- Infrastructure code has been added to allow for a new histogram
feature for recording live trace event histograms that can be
configured by simple user commands. The feature itself was just
finished, but needs a round in linux-next before being pulled.
This only includes some infrastructure changes that will be needed"
* tag 'trace-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (22 commits)
tracing: Record and show NMI state
tracing: Fix trace_printk() to print when not using bprintk()
tracing: Remove redundant reset per-CPU buff in irqsoff tracer
x86: ftrace: Fix the misleading comment for arch/x86/kernel/ftrace.c
tracing: Fix crash from reading trace_pipe with sendfile
tracing: Have preempt(irqs)off trace preempt disabled functions
tracing: Fix return while holding a lock in register_tracer()
ftrace: Use kasprintf() in ftrace_profile_tracefs()
ftrace: Update dynamic ftrace calls only if necessary
ftrace: Make ftrace_hash_rec_enable return update bool
tracing: Fix typoes in code comment and printk in trace_nop.c
tracing, writeback: Replace cgroup path to cgroup ino
tracing: Use flags instead of bool in trigger structure
tracing: Add an unreg_all() callback to trigger commands
tracing: Add needs_rec flag to event triggers
tracing: Add a per-event-trigger 'paused' field
tracing: Add get_syscall_name()
tracing: Add event record param to trigger_ops.func()
tracing: Make event trigger functions available
tracing: Make ftrace_event_field checking functions available
...
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Hidehiro Kawai
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ebc41f20d7 |
panic: change nmi_panic from macro to function
Commit |
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Steven Rostedt (Red Hat)
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3debb0a9dd |
tracing: Fix trace_printk() to print when not using bprintk()
The trace_printk() code will allocate extra buffers if the compile detects
that a trace_printk() is used. To do this, the format of the trace_printk()
is saved to the __trace_printk_fmt section, and if that section is bigger
than zero, the buffers are allocated (along with a message that this has
happened).
If trace_printk() uses a format that is not a constant, and thus something
not guaranteed to be around when the print happens, the compiler optimizes
the fmt out, as it is not used, and the __trace_printk_fmt section is not
filled. This means the kernel will not allocate the special buffers needed
for the trace_printk() and the trace_printk() will not write anything to the
tracing buffer.
Adding a "__used" to the variable in the __trace_printk_fmt section will
keep it around, even though it is set to NULL. This will keep the string
from being printed in the debugfs/tracing/printk_formats section as it is
not needed.
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Fixes:
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Linus Torvalds
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1200b6809d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
"Highlights:
1) Support more Realtek wireless chips, from Jes Sorenson.
2) New BPF types for per-cpu hash and arrap maps, from Alexei
Starovoitov.
3) Make several TCP sysctls per-namespace, from Nikolay Borisov.
4) Allow the use of SO_REUSEPORT in order to do per-thread processing
of incoming TCP/UDP connections. The muxing can be done using a
BPF program which hashes the incoming packet. From Craig Gallek.
5) Add a multiplexer for TCP streams, to provide a messaged based
interface. BPF programs can be used to determine the message
boundaries. From Tom Herbert.
6) Add 802.1AE MACSEC support, from Sabrina Dubroca.
7) Avoid factorial complexity when taking down an inetdev interface
with lots of configured addresses. We were doing things like
traversing the entire address less for each address removed, and
flushing the entire netfilter conntrack table for every address as
well.
8) Add and use SKB bulk free infrastructure, from Jesper Brouer.
9) Allow offloading u32 classifiers to hardware, and implement for
ixgbe, from John Fastabend.
10) Allow configuring IRQ coalescing parameters on a per-queue basis,
from Kan Liang.
11) Extend ethtool so that larger link mode masks can be supported.
From David Decotigny.
12) Introduce devlink, which can be used to configure port link types
(ethernet vs Infiniband, etc.), port splitting, and switch device
level attributes as a whole. From Jiri Pirko.
13) Hardware offload support for flower classifiers, from Amir Vadai.
14) Add "Local Checksum Offload". Basically, for a tunneled packet
the checksum of the outer header is 'constant' (because with the
checksum field filled into the inner protocol header, the payload
of the outer frame checksums to 'zero'), and we can take advantage
of that in various ways. From Edward Cree"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits)
bonding: fix bond_get_stats()
net: bcmgenet: fix dma api length mismatch
net/mlx4_core: Fix backward compatibility on VFs
phy: mdio-thunder: Fix some Kconfig typos
lan78xx: add ndo_get_stats64
lan78xx: handle statistics counter rollover
RDS: TCP: Remove unused constant
RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket
net: smc911x: convert pxa dma to dmaengine
team: remove duplicate set of flag IFF_MULTICAST
bonding: remove duplicate set of flag IFF_MULTICAST
net: fix a comment typo
ethernet: micrel: fix some error codes
ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it
bpf, dst: add and use dst_tclassid helper
bpf: make skb->tc_classid also readable
net: mvneta: bm: clarify dependencies
cls_bpf: reset class and reuse major in da
ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c
ldmvsw: Add ldmvsw.c driver code
...
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Kees Cook
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ef95159907 |
lib: move strtobool() to kstrtobool()
Create the kstrtobool_from_user() helper and move strtobool() logic into the new kstrtobool() (matching all the other kstrto* functions). Provides an inline wrapper for existing strtobool() callers. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Joe Perches <joe@perches.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Amitkumar Karwar <akarwar@marvell.com> Cc: Nishant Sarmukadam <nishants@marvell.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: Steve French <sfrench@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Nicolas Dichtel
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b5d3755a22 |
uapi: define DIV_ROUND_UP for userland
DIV_ROUND_UP is defined in linux/kernel.h only for the kernel.
When ethtool.h is included by a userland app, we got the following error:
include/linux/ethtool.h:1218:8: error: variably modified 'queue_mask' at file scope
__u32 queue_mask[DIV_ROUND_UP(MAX_NUM_QUEUE, 32)];
^
Let's add a common definition in uapi and use it everywhere.
Fixes:
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Michal Nazarewicz
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8f57e4d930 |
include/linux/kernel.h: change abs() macro so it uses consistent return type
Rewrite abs() so that its return type does not depend on the
architecture and no unexpected type conversion happen inside of it. The
only conversion is from unsigned to signed type. char is left as a
return type but treated as a signed type regradless of it's actual
signedness.
With the old version, int arguments were promoted to long and depending
on architecture a long argument might result in s64 or long return type
(which may or may not be the same).
This came after some back and forth with Nicolas. The current macro has
different return type (for the same input type) depending on
architecture which might be midly iritating.
An alternative version would promote to int like so:
#define abs(x) __abs_choose_expr(x, long long, \
__abs_choose_expr(x, long, \
__builtin_choose_expr( \
sizeof(x) <= sizeof(int), \
({ int __x = (x); __x<0?-__x:__x; }), \
((void)0))))
I have no preference but imagine Linus might. :] Nicolas argument against
is that promoting to int causes iconsistent behaviour:
int main(void) {
unsigned short a = 0, b = 1, c = a - b;
unsigned short d = abs(a - b);
unsigned short e = abs(c);
printf("%u %u\n", d, e); // prints: 1 65535
}
Then again, no sane person expects consistent behaviour from C integer
arithmetic. ;)
Note:
__builtin_types_compatible_p(unsigned char, char) is always false, and
__builtin_types_compatible_p(signed char, char) is also always false.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Hidehiro Kawai
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58c5661f21 |
panic, x86: Allow CPUs to save registers even if looping in NMI context
Currently, kdump_nmi_shootdown_cpus(), a subroutine of crash_kexec(),
sends an NMI IPI to CPUs which haven't called panic() to stop them,
save their register information and do some cleanups for crash dumping.
However, if such a CPU is infinitely looping in NMI context, we fail to
save its register information into the crash dump.
For example, this can happen when unknown NMIs are broadcast to all
CPUs as follows:
CPU 0 CPU 1
=========================== ==========================
receive an unknown NMI
unknown_nmi_error()
panic() receive an unknown NMI
spin_trylock(&panic_lock) unknown_nmi_error()
crash_kexec() panic()
spin_trylock(&panic_lock)
panic_smp_self_stop()
infinite loop
kdump_nmi_shootdown_cpus()
issue NMI IPI -----------> blocked until IRET
infinite loop...
Here, since CPU 1 is in NMI context, the second NMI from CPU 0 is
blocked until CPU 1 executes IRET. However, CPU 1 never executes IRET,
so the NMI is not handled and the callback function to save registers is
never called.
In practice, this can happen on some servers which broadcast NMIs to all
CPUs when the NMI button is pushed.
To save registers in this case, we need to:
a) Return from NMI handler instead of looping infinitely
or
b) Call the callback function directly from the infinite loop
Inherently, a) is risky because NMI is also used to prevent corrupted
data from being propagated to devices. So, we chose b).
This patch does the following:
1. Move the infinite looping of CPUs which haven't called panic() in NMI
context (actually done by panic_smp_self_stop()) outside of panic() to
enable us to refer pt_regs. Please note that panic_smp_self_stop() is
still used for normal context.
2. Call a callback of kdump_nmi_shootdown_cpus() directly to save
registers and do some cleanups after setting waiting_for_crash_ipi which
is used for counting down the number of CPUs which handled the callback
Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Aaron Tomlin <atomlin@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: David Hildenbrand <dahi@linux.vnet.ibm.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Gobinda Charan Maji <gobinda.cemk07@gmail.com>
Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Javi Merino <javi.merino@arm.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: kexec@lists.infradead.org
Cc: linux-doc@vger.kernel.org
Cc: lkml <linux-kernel@vger.kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Link: http://lkml.kernel.org/r/20151210014628.25437.75256.stgit@softrs
[ Cleanup comments, fixup formatting. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Hidehiro Kawai
|
1717f2096b |
panic, x86: Fix re-entrance problem due to panic on NMI
If panic on NMI happens just after panic() on the same CPU, panic() is recursively called. Kernel stalls, as a result, after failing to acquire panic_lock. To avoid this problem, don't call panic() in NMI context if we've already entered panic(). For that, introduce nmi_panic() macro to reduce code duplication. In the case of panic on NMI, don't return from NMI handlers if another CPU already panicked. Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Aaron Tomlin <atomlin@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Baoquan He <bhe@redhat.com> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: David Hildenbrand <dahi@linux.vnet.ibm.com> Cc: Don Zickus <dzickus@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Gobinda Charan Maji <gobinda.cemk07@gmail.com> Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Javi Merino <javi.merino@arm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: kexec@lists.infradead.org Cc: linux-doc@vger.kernel.org Cc: lkml <linux-kernel@vger.kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Michal Nazarewicz <mina86@mina86.com> Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Seth Jennings <sjenning@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ulrich Obergfell <uobergfe@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Link: http://lkml.kernel.org/r/20151210014626.25437.13302.stgit@softrs [ Cleanup comments, fixup formatting. ] Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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Andrew Morton
|
79211c8ed1 |
remove abs64()
Switch everything to the new and more capable implementation of abs(). Mainly to give the new abs() a bit of a workout. Cc: Michal Nazarewicz <mina86@mina86.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Michal Nazarewicz
|
c8299cb605 |
kernel.h: make abs() work with 64-bit types
For 64-bit arguments, the abs macro casts it to an int which leads to
lost precision and may cause incorrect results. To deal with 64-bit
types abs64 macro has been introduced but still there are places where
abs macro is used incorrectly.
To deal with the problem, expand abs macro such that it operates on s64
type when dealing with 64-bit types while still returning long when
dealing with smaller types.
This fixes one known bug (per John):
The internal clocksteering done for fine-grained error correction uses a
: logarithmic approximation, so any time adjtimex() adjusts the clock
: steering, timekeeping_freqadjust() quickly approximates the correct clock
: frequency over a series of ticks.
:
: Unfortunately, the logic in timekeeping_freqadjust(), introduced in commit
:
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Rasmus Villemoes
|
0a9df786a6 |
lib/kasprintf.c: introduce kvasprintf_const
This adds kvasprintf_const which tries to use kstrdup_const if possible: If the format string contains no % characters, or if the format string is exactly "%s", we delegate to kstrdup_const. Otherwise, we fall back to kvasprintf. Just as for kstrdup_const, the main motivation is to save memory by reusing .rodata when possible. The return value should be freed by kfree_const, just like for kstrdup_const. There is deliberately no kasprintf_const: In the vast majority of cases, the format string argument is a literal, so one can determine statically whether one could instead use kstrdup_const directly (which would also require one to change all corresponding kfree calls to kfree_const). Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Nicolas Iooss
|
8db1486065 |
include, lib: add __printf attributes to several function prototypes
Using __printf attributes helps to detect several format string issues at compile time (even though -Wformat-security is currently disabled in Makefile). For example it can detect when formatting a pointer as a number, like the issue fixed in commit |
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Linus Torvalds
|
2d01eedf1d |
Merge branch 'akpm' (patches from Andrew)
Merge third patchbomb from Andrew Morton: - the rest of MM - scripts/gdb updates - ipc/ updates - lib/ updates - MAINTAINERS updates - various other misc things * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (67 commits) genalloc: rename of_get_named_gen_pool() to of_gen_pool_get() genalloc: rename dev_get_gen_pool() to gen_pool_get() x86: opt into HAVE_COPY_THREAD_TLS, for both 32-bit and 64-bit MAINTAINERS: add zpool MAINTAINERS: BCACHE: Kent Overstreet has changed email address MAINTAINERS: move Jens Osterkamp to CREDITS MAINTAINERS: remove unused nbd.h pattern MAINTAINERS: update brcm gpio filename pattern MAINTAINERS: update brcm dts pattern MAINTAINERS: update sound soc intel patterns MAINTAINERS: remove website for paride MAINTAINERS: update Emulex ocrdma email addresses bcache: use kvfree() in various places libcxgbi: use kvfree() in cxgbi_free_big_mem() target: use kvfree() in session alloc and free IB/ehca: use kvfree() in ipz_queue_{cd}tor() drm/nouveau/gem: use kvfree() in u_free() drm: use kvfree() in drm_free_large() cxgb4: use kvfree() in t4_free_mem() cxgb3: use kvfree() in cxgb_free_mem() ... |
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Linus Torvalds
|
02201e3f1b |
Merge tag 'modules-next-for-linus' of 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()
...
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HATAYAMA Daisuke
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5375b708f2 |
kernel/panic/kexec: fix "crash_kexec_post_notifiers" option issue in oops path
Commit
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Linus Torvalds
|
e382608254 |
Merge tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"This patch series contains several clean ups and even a new trace
clock "monitonic raw". Also some enhancements to make the ring buffer
even faster. But the biggest and most noticeable change is the
renaming of the ftrace* files, structures and variables that have to
deal with trace events.
Over the years I've had several developers tell me about their
confusion with what ftrace is compared to events. Technically,
"ftrace" is the infrastructure to do the function hooks, which include
tracing and also helps with live kernel patching. But the trace
events are a separate entity altogether, and the files that affect the
trace events should not be named "ftrace". These include:
include/trace/ftrace.h -> include/trace/trace_events.h
include/linux/ftrace_event.h -> include/linux/trace_events.h
Also, functions that are specific for trace events have also been renamed:
ftrace_print_*() -> trace_print_*()
(un)register_ftrace_event() -> (un)register_trace_event()
ftrace_event_name() -> trace_event_name()
ftrace_trigger_soft_disabled() -> trace_trigger_soft_disabled()
ftrace_define_fields_##call() -> trace_define_fields_##call()
ftrace_get_offsets_##call() -> trace_get_offsets_##call()
Structures have been renamed:
ftrace_event_file -> trace_event_file
ftrace_event_{call,class} -> trace_event_{call,class}
ftrace_event_buffer -> trace_event_buffer
ftrace_subsystem_dir -> trace_subsystem_dir
ftrace_event_raw_##call -> trace_event_raw_##call
ftrace_event_data_offset_##call-> trace_event_data_offset_##call
ftrace_event_type_funcs_##call -> trace_event_type_funcs_##call
And a few various variables and flags have also been updated.
This has been sitting in linux-next for some time, and I have not
heard a single complaint about this rename breaking anything. Mostly
because these functions, variables and structures are mostly internal
to the tracing system and are seldom (if ever) used by anything
external to that"
* tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits)
ring_buffer: Allow to exit the ring buffer benchmark immediately
ring-buffer-benchmark: Fix the wrong type
ring-buffer-benchmark: Fix the wrong param in module_param
ring-buffer: Add enum names for the context levels
ring-buffer: Remove useless unused tracing_off_permanent()
ring-buffer: Give NMIs a chance to lock the reader_lock
ring-buffer: Add trace_recursive checks to ring_buffer_write()
ring-buffer: Allways do the trace_recursive checks
ring-buffer: Move recursive check to per_cpu descriptor
ring-buffer: Add unlikelys to make fast path the default
tracing: Rename ftrace_get_offsets_##call() to trace_event_get_offsets_##call()
tracing: Rename ftrace_define_fields_##call() to trace_event_define_fields_##call()
tracing: Rename ftrace_event_type_funcs_##call to trace_event_type_funcs_##call
tracing: Rename ftrace_data_offset_##call to trace_event_data_offset_##call
tracing: Rename ftrace_raw_##call event structures to trace_event_raw_##call
tracing: Rename ftrace_trigger_soft_disabled() to trace_trigger_soft_disabled()
tracing: Rename FTRACE_EVENT_FL_* flags to EVENT_FILE_FL_*
tracing: Rename struct ftrace_subsystem_dir to trace_subsystem_dir
tracing: Rename ftrace_event_name() to trace_event_name()
tracing: Rename FTRACE_MAX_EVENT to TRACE_EVENT_TYPE_MAX
...
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Steven Rostedt (Red Hat)
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3c6296f716 |
ring-buffer: Remove useless unused tracing_off_permanent()
The tracing_off_permanent() call is a way to disable all ring_buffers. Nothing uses it and nothing should use it, as tracing_off() and friends are better, as they disable the ring buffers related to tracing. The tracing_off_permanent() even disabled non tracing ring buffers. This is a bit drastic, and was added to handle NMIs doing outputs that could corrupt the ring buffer when only tracing used them. It is now obsolete and adds a little overhead, it should be removed. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> |
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Gobinda Charan Maji
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28b8d0c8f5 |
sysfs: tightened sysfs permission checks
There were some inconsistency in restriction to VERIFY_OCTAL_PERMISSIONS(). Previously the test was "User perms >= group perms >= other perms". The permission field of User, Group or Other consists of three bits. LSB is EXECUTE permission, MSB is READ permission and the middle bit is WRITE permission. But logically WRITE is "more privileged" than READ. Say for example, permission value is "0430". Here User has only READ permission whereas Group has both WRITE and EXECUTE permission. So, the checks could be tightened and the tests are separated to USER_READABLE >= GROUP_READABLE >= OTHER_READABLE, USER_WRITABLE >= GROUP_WRITABLE and OTHER_WRITABLE is not permitted. Signed-off-by: Gobinda Charan Maji <gobinda.cemk07@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> |
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David Hildenbrand
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9ec23531fd |
sched/preempt, mm/fault: Trigger might_sleep() in might_fault() with disabled pagefaults
Commit
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Javi Merino
|
f766093ecb |
kernel.h: implement DIV_ROUND_CLOSEST_ULL
We have grown a number of different implementations of DIV_ROUND_CLOSEST_ULL throughout the kernel. Move the i915 one to kernel.h so that it can be reused. Signed-off-by: Javi Merino <javi.merino@arm.com> Reviewed-by: Jeff Epler <jepler@unpythonic.net> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: David Airlie <airlied@linux.ie> Cc: Guenter Roeck <linux@roeck-us.net> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Alex Elder <elder@linaro.org> Cc: Antti Palosaari <crope@iki.fi> Cc: Javi Merino <javi.merino@arm.com> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Rasmus Villemoes
|
02f1f2170d |
kernel.h: remove ancient __FUNCTION__ hack
__FUNCTION__ hasn't been treated as a string literal since gcc 3.4, so this only helps people who only test-compile using 3.3 (compiler-gcc3.h barks at anything older than that). Besides, there are almost no occurrences of __FUNCTION__ left in the tree. [akpm@linux-foundation.org: convert remaining __FUNCTION__ references] Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Michal Nazarewicz <mina86@mina86.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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1d9c5d79e6 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull live patching infrastructure from Jiri Kosina:
"Let me provide a bit of history first, before describing what is in
this pile.
Originally, there was kSplice as a standalone project that implemented
stop_machine()-based patching for the linux kernel. This project got
later acquired, and the current owner is providing live patching as a
proprietary service, without any intentions to have their
implementation merged.
Then, due to rising user/customer demand, both Red Hat and SUSE
started working on their own implementation (not knowing about each
other), and announced first versions roughly at the same time [1] [2].
The principle difference between the two solutions is how they are
making sure that the patching is performed in a consistent way when it
comes to different execution threads with respect to the semantic
nature of the change that is being introduced.
In a nutshell, kPatch is issuing stop_machine(), then looking at
stacks of all existing processess, and if it decides that the system
is in a state that can be patched safely, it proceeds insterting code
redirection machinery to the patched functions.
On the other hand, kGraft provides a per-thread consistency during one
single pass of a process through the kernel and performs a lazy
contignuous migration of threads from "unpatched" universe to the
"patched" one at safe checkpoints.
If interested in a more detailed discussion about the consistency
models and its possible combinations, please see the thread that
evolved around [3].
It pretty quickly became obvious to the interested parties that it's
absolutely impractical in this case to have several isolated solutions
for one task to co-exist in the kernel. During a dedicated Live
Kernel Patching track at LPC in Dusseldorf, all the interested parties
sat together and came up with a joint aproach that would work for both
distro vendors. Steven Rostedt took notes [4] from this meeting.
And the foundation for that aproach is what's present in this pull
request.
It provides a basic infrastructure for function "live patching" (i.e.
code redirection), including API for kernel modules containing the
actual patches, and API/ABI for userspace to be able to operate on the
patches (look up what patches are applied, enable/disable them, etc).
It's relatively simple and minimalistic, as it's making use of
existing kernel infrastructure (namely ftrace) as much as possible.
It's also self-contained, in a sense that it doesn't hook itself in
any other kernel subsystem (it doesn't even touch any other code).
It's now implemented for x86 only as a reference architecture, but
support for powerpc, s390 and arm is already in the works (adding
arch-specific support basically boils down to teaching ftrace about
regs-saving).
Once this common infrastructure gets merged, both Red Hat and SUSE
have agreed to immediately start porting their current solutions on
top of this, abandoning their out-of-tree code. The plan basically is
that each patch will be marked by flag(s) that would indicate which
consistency model it is willing to use (again, the details have been
sketched out already in the thread at [3]).
Before this happens, the current codebase can be used to patch a large
group of secruity/stability problems the patches for which are not too
complex (in a sense that they don't introduce non-trivial change of
function's return value semantics, they don't change layout of data
structures, etc) -- this corresponds to LEAVE_FUNCTION &&
SWITCH_FUNCTION semantics described at [3].
This tree has been in linux-next since December.
[1] https://lkml.org/lkml/2014/4/30/477
[2] https://lkml.org/lkml/2014/7/14/857
[3] https://lkml.org/lkml/2014/11/7/354
[4] http://linuxplumbersconf.org/2014/wp-content/uploads/2014/10/LPC2014_LivePatching.txt
[ The core code is introduced by the three commits authored by Seth
Jennings, which got a lot of changes incorporated during numerous
respins and reviews of the initial implementation. All the followup
commits have materialized only after public tree has been created,
so they were not folded into initial three commits so that the
public tree doesn't get rebased ]"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
livepatch: add missing newline to error message
livepatch: rename config to CONFIG_LIVEPATCH
livepatch: fix uninitialized return value
livepatch: support for repatching a function
livepatch: enforce patch stacking semantics
livepatch: change ARCH_HAVE_LIVE_PATCHING to HAVE_LIVE_PATCHING
livepatch: fix deferred module patching order
livepatch: handle ancient compilers with more grace
livepatch: kconfig: use bool instead of boolean
livepatch: samples: fix usage example comments
livepatch: MAINTAINERS: add git tree location
livepatch: use FTRACE_OPS_FL_IPMODIFY
livepatch: move x86 specific ftrace handler code to arch/x86
livepatch: samples: add sample live patching module
livepatch: kernel: add support for live patching
livepatch: kernel: add TAINT_LIVEPATCH
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Linus Torvalds
|
00845eb968 |
sched: don't cause task state changes in nested sleep debugging
Commit
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Seth Jennings
|
c5f4546593 |
livepatch: kernel: add TAINT_LIVEPATCH
This adds a new taint flag to indicate when the kernel or a kernel module has been live patched. This will provide a clean indication in bug reports that live patching was used. Additionally, if the crash occurs in a live patched function, the live patch module will appear beside the patched function in the backtrace. Signed-off-by: Seth Jennings <sjenning@redhat.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Petr Mladek <pmladek@suse.cz> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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Linus Torvalds
|
37da7bbbe8 |
Merge tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH: "Here's the big tty/serial driver update for 3.19-rc1. There are a number of TTY core changes/fixes in here from Peter Hurley that have all been teted in linux-next for a long time now. There are also the normal serial driver updates as well, full details in the changelog below" * tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (219 commits) serial: pxa: hold port.lock when reporting modem line changes tty-hvsi_lib: Deletion of an unnecessary check before the function call "tty_kref_put" tty: Deletion of unnecessary checks before two function calls n_tty: Fix read_buf race condition, increment read_head after pushing data serial: of-serial: add PM suspend/resume support Revert "serial: of-serial: add PM suspend/resume support" Revert "serial: of-serial: fix up PM ops on no_console_suspend and port type" serial: 8250: don't attempt a trylock if in sysrq serial: core: Add big-endian iotype serial: samsung: use port->fifosize instead of hardcoded values serial: samsung: prefer to use fifosize from driver data serial: samsung: fix style problems serial: samsung: wait for transfer completion before clock disable serial: icom: fix error return code serial: tegra: clean up tty-flag assignments serial: Fix io address assign flow with Fintek PCI-to-UART Product serial: mxs-auart: fix tx_empty against shift register serial: mxs-auart: fix gpio change detection on interrupt serial: mxs-auart: Fix mxs_auart_set_ldisc() serial: 8250_dw: Use 64-bit access for OCTEON. ... |
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Prarit Bhargava
|
9e3961a097 |
kernel: add panic_on_warn
There have been several times where I have had to rebuild a kernel to
cause a panic when hitting a WARN() in the code in order to get a crash
dump from a system. Sometimes this is easy to do, other times (such as
in the case of a remote admin) it is not trivial to send new images to
the user.
A much easier method would be a switch to change the WARN() over to a
panic. This makes debugging easier in that I can now test the actual
image the WARN() was seen on and I do not have to engage in remote
debugging.
This patch adds a panic_on_warn kernel parameter and
/proc/sys/kernel/panic_on_warn calls panic() in the
warn_slowpath_common() path. The function will still print out the
location of the warning.
An example of the panic_on_warn output:
The first line below is from the WARN_ON() to output the WARN_ON()'s
location. After that the panic() output is displayed.
WARNING: CPU: 30 PID: 11698 at /home/prarit/dummy_module/dummy-module.c:25 init_dummy+0x1f/0x30 [dummy_module]()
Kernel panic - not syncing: panic_on_warn set ...
CPU: 30 PID: 11698 Comm: insmod Tainted: G W OE 3.17.0+ #57
Hardware name: Intel Corporation S2600CP/S2600CP, BIOS RMLSDP.86I.00.29.D696.1311111329 11/11/2013
0000000000000000 000000008e3f87df ffff88080f093c38 ffffffff81665190
0000000000000000 ffffffff818aea3d ffff88080f093cb8 ffffffff8165e2ec
ffffffff00000008 ffff88080f093cc8 ffff88080f093c68 000000008e3f87df
Call Trace:
[<ffffffff81665190>] dump_stack+0x46/0x58
[<ffffffff8165e2ec>] panic+0xd0/0x204
[<ffffffffa038e05f>] ? init_dummy+0x1f/0x30 [dummy_module]
[<ffffffff81076b90>] warn_slowpath_common+0xd0/0xd0
[<ffffffffa038e040>] ? dummy_greetings+0x40/0x40 [dummy_module]
[<ffffffff81076c8a>] warn_slowpath_null+0x1a/0x20
[<ffffffffa038e05f>] init_dummy+0x1f/0x30 [dummy_module]
[<ffffffff81002144>] do_one_initcall+0xd4/0x210
[<ffffffff811b52c2>] ? __vunmap+0xc2/0x110
[<ffffffff810f8889>] load_module+0x16a9/0x1b30
[<ffffffff810f3d30>] ? store_uevent+0x70/0x70
[<ffffffff810f49b9>] ? copy_module_from_fd.isra.44+0x129/0x180
[<ffffffff810f8ec6>] SyS_finit_module+0xa6/0xd0
[<ffffffff8166cf29>] system_call_fastpath+0x12/0x17
Successfully tested by me.
hpa said: There is another very valid use for this: many operators would
rather a machine shuts down than being potentially compromised either
functionally or security-wise.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Peter Hurley
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e1c2296c34 |
tty: Move session_of_pgrp() and make static
tiocspgrp() is the lone caller of session_of_pgrp(); relocate and limit to file scope. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Reviewed-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Peter Zijlstra
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3427445afd |
sched: Exclude cond_resched() from nested sleep test
cond_resched() is a preemption point, not strictly a blocking primitive, so exclude it from the ->state test. In particular, preemption preserves task_struct::state. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: tglx@linutronix.de Cc: ilya.dryomov@inktank.com Cc: umgwanakikbuti@gmail.com Cc: oleg@redhat.com Cc: Alex Elder <alex.elder@linaro.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Axel Lin <axel.lin@ingics.com> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Dave Jones <davej@redhat.com> Cc: Jason Baron <jbaron@akamai.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20140924082242.656559952@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Peter Zijlstra
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1029a2b52c |
sched, exit: Deal with nested sleeps
do_wait() is a big wait loop, but we set TASK_RUNNING too late; we end up calling potential sleeps before we reset it. Not strictly a bug since we're guaranteed to exit the loop and not call schedule(); put in annotations to quiet might_sleep(). WARNING: CPU: 0 PID: 1 at ../kernel/sched/core.c:7123 __might_sleep+0x7e/0x90() do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff8109a788>] do_wait+0x88/0x270 Call Trace: [<ffffffff81694991>] dump_stack+0x4e/0x7a [<ffffffff8109877c>] warn_slowpath_common+0x8c/0xc0 [<ffffffff8109886c>] warn_slowpath_fmt+0x4c/0x50 [<ffffffff810bca6e>] __might_sleep+0x7e/0x90 [<ffffffff811a1c15>] might_fault+0x55/0xb0 [<ffffffff8109a3fb>] wait_consider_task+0x90b/0xc10 [<ffffffff8109a804>] do_wait+0x104/0x270 [<ffffffff8109b837>] SyS_wait4+0x77/0x100 [<ffffffff8169d692>] system_call_fastpath+0x16/0x1b Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: tglx@linutronix.de Cc: umgwanakikbuti@gmail.com Cc: ilya.dryomov@inktank.com Cc: Alex Elder <alex.elder@linaro.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Axel Lin <axel.lin@ingics.com> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Dave Jones <davej@redhat.com> Cc: Guillaume Morin <guillaume@morinfr.org> Cc: Ionut Alexa <ionut.m.alexa@gmail.com> Cc: Jason Baron <jbaron@akamai.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.cz> Cc: Michal Schmidt <mschmidt@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Rik van Riel <riel@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20140924082242.186408915@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
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8c81f48e16 |
Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 EFI updates from Peter Anvin: "This patchset falls under the "maintainers that grovel" clause in the v3.18-rc1 announcement. We had intended to push it late in the merge window since we got it into the -tip tree relatively late. Many of these are relatively simple things, but there are a couple of key bits, especially Ard's and Matt's patches" * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) rtc: Disable EFI rtc for x86 efi: rtc-efi: Export platform:rtc-efi as module alias efi: Delete the in_nmi() conditional runtime locking efi: Provide a non-blocking SetVariable() operation x86/efi: Adding efi_printks on memory allocationa and pci.reads x86/efi: Mark initialization code as such x86/efi: Update comment regarding required phys mapped EFI services x86/efi: Unexport add_efi_memmap variable x86/efi: Remove unused efi_call* macros efi: Resolve some shadow warnings arm64: efi: Format EFI memory type & attrs with efi_md_typeattr_format() ia64: efi: Format EFI memory type & attrs with efi_md_typeattr_format() x86: efi: Format EFI memory type & attrs with efi_md_typeattr_format() efi: Introduce efi_md_typeattr_format() efi: Add macro for EFI_MEMORY_UCE memory attribute x86/efi: Clear EFI_RUNTIME_SERVICES if failing to enter virtual mode arm64/efi: Do not enter virtual mode if booting with efi=noruntime or noefi arm64/efi: uefi_init error handling fix efi: Add kernel param efi=noruntime lib: Add a generic cmdline parse function parse_option_str ... |
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Daniel Walter
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3db2e9cdc0 |
include/linux: remove strict_strto* definitions
Remove obsolete and unused strict_strto* functions Signed-off-by: Daniel Walter <dwalter@google.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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5e40d331bd |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris. Mostly ima, selinux, smack and key handling updates. * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (65 commits) integrity: do zero padding of the key id KEYS: output last portion of fingerprint in /proc/keys KEYS: strip 'id:' from ca_keyid KEYS: use swapped SKID for performing partial matching KEYS: Restore partial ID matching functionality for asymmetric keys X.509: If available, use the raw subjKeyId to form the key description KEYS: handle error code encoded in pointer selinux: normalize audit log formatting selinux: cleanup error reporting in selinux_nlmsg_perm() KEYS: Check hex2bin()'s return when generating an asymmetric key ID ima: detect violations for mmaped files ima: fix race condition on ima_rdwr_violation_check and process_measurement ima: added ima_policy_flag variable ima: return an error code from ima_add_boot_aggregate() ima: provide 'ima_appraise=log' kernel option ima: move keyring initialization to ima_init() PKCS#7: Handle PKCS#7 messages that contain no X.509 certs PKCS#7: Better handling of unsupported crypto KEYS: Overhaul key identification when searching for asymmetric keys KEYS: Implement binary asymmetric key ID handling ... |