* refs/heads/tmp-a9d0273:
Linux 4.9.84
crypto: s5p-sss - Fix kernel Oops in AES-ECB mode
KVM: nVMX: invvpid handling improvements
KVM: VMX: clean up declaration of VPID/EPT invalidation types
KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously
x86/microcode/AMD: Change load_microcode_amd()'s param to bool to fix preemptibility bug
usb: phy: msm add regulator dependency
arm64: fix warning about swapper_pg_dir overflow
idle: i7300: add PCI dependency
spi: bcm-qspi: shut up warning about cfi header inclusion
binfmt_elf: compat: avoid unused function warning
arm64: sunxi: always enable reset controller
drm/i915: hide unused intel_panel_set_backlight function
kasan: rework Kconfig settings
clk: meson: gxbb: fix build error without RESET_CONTROLLER
ISDN: eicon: reduce stack size of sig_ind function
tw5864: use dev_warn instead of WARN to shut up warning
em28xx: only use mt9v011 if camera support is enabled
go7007: add MEDIA_CAMERA_SUPPORT dependency
tc358743: fix register i2c_rd/wr functions
shmem: fix compilation warnings on unused functions
KVM: add X86_LOCAL_APIC dependency
Input: tca8418_keypad - hide gcc-4.9 -Wmaybe-uninitialized warning
drm/nouveau: hide gcc-4.9 -Wmaybe-uninitialized
rbd: silence bogus -Wmaybe-uninitialized warning
drm: exynos: mark pm functions as __maybe_unused
security/keys: BIG_KEY requires CONFIG_CRYPTO
cw1200: fix bogus maybe-uninitialized warning
reiserfs: avoid a -Wmaybe-uninitialized warning
ALSA: hda/ca0132 - fix possible NULL pointer use
arm64: Kconfig: select COMPAT_BINFMT_ELF only when BINFMT_ELF is set
scsi: advansys: fix uninitialized data access
x86/vm86: Fix unused variable warning if THP is disabled
x86/platform: Add PCI dependency for PUNIT_ATOM_DEBUG
dmaengine: zx: fix build warning
x86: add MULTIUSER dependency for KVM
thermal: fix INTEL_SOC_DTS_IOSF_CORE dependencies
x86/build: Silence the build with "make -s"
tools build: Add tools tree support for 'make -s'
x86/fpu/math-emu: Fix possible uninitialized variable use
arm64: define BUG() instruction without CONFIG_BUG
gpio: xgene: mark PM functions as __maybe_unused
x86/ras/inject: Make it depend on X86_LOCAL_APIC=y
scsi: advansys: fix build warning for PCI=n
video: fbdev: via: remove possibly unused variables
perf: xgene: Include module.h
PCI: Change pci_host_common_probe() visibility
usb: musb: fix compilation warning on unused function
platform/x86: intel_mid_thermal: Fix suspend handlers unused warning
gpio: intel-mid: Fix build warning when !CONFIG_PM
PCI: vmd: Fix suspend handlers defined-but-not-used warning
perf/x86: Shut up false-positive -Wmaybe-uninitialized warning
vmxnet3: prevent building with 64K pages
clk: sunxi-ng: fix build error without CONFIG_RESET_CONTROLLER
shmem: avoid maybe-uninitialized warning
drm/i915: fix intel_backlight_device_register declaration
crypto: talitos - fix Kernel Oops on hashing an empty file
powerpc/64s: Improve RFI L1-D cache flush fallback
powerpc/64s: Simple RFI macro conversions
powerpc/64s: Fix conversion of slb_miss_common to use RFI_TO_USER/KERNEL
hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close
xen: XEN_ACPI_PROCESSOR is Dom0-only
platform/x86: dell-laptop: Fix keyboard max lighting for Dell Latitude E6410
x86/mm/kmmio: Fix mmiotrace for page unaligned addresses
mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep
usb: dwc3: of-simple: fix missing clk_disable_unprepare
usb: dwc3: gadget: Wait longer for controller to end command processing
dmaengine: jz4740: disable/unprepare clk if probe fails
drm/armada: fix leak of crtc structure
xfrm: Fix stack-out-of-bounds with misconfigured transport mode policies.
spi: sun4i: disable clocks in the remove function
ASoC: rockchip: disable clock on error
clk: fix a panic error caused by accessing NULL pointer
dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved
dmaengine: ioat: Fix error handling path
gianfar: Disable EEE autoneg by default
509: fix printing uninitialized stack memory when OID is empty
net: ethernet: arc: fix error handling in emac_rockchip_probe
brcmfmac: Avoid build error with make W=1
btrfs: Fix possible off-by-one in btrfs_search_path_in_tree
net_sched: red: Avoid illegal values
net_sched: red: Avoid devision by zero
gianfar: fix a flooded alignment reports because of padding issue.
ARM: dts: Fix elm interrupt compiler warning
s390/dasd: prevent prefix I/O error
powerpc/perf: Fix oops when grouping different pmu events
m68k: add missing SOFTIRQENTRY_TEXT linker section
ipvlan: Add the skb->mark as flow4's member to lookup route
scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
sctp: only update outstanding_bytes for transmitted queue when doing prsctp_prune
RDMA/cma: Make sure that PSN is not over max allowed
i40iw: Correct ARP index mask
pinctrl: sunxi: Fix A64 UART mux value
pinctrl: sunxi: Fix A80 interrupt pin bank
media: s5k6aa: describe some function parameters
perf bench numa: Fixup discontiguous/sparse numa nodes
perf top: Fix window dimensions change handling
ARM: dts: am437x-cm-t43: Correct the dmas property of spi0
ARM: dts: am4372: Correct the interrupts_properties of McASP
ARM: dts: logicpd-somlv: Fix wl127x pinmux
ARM: dts: logicpd-som-lv: Fix gpmc addresses for NAND and enet
ARM: dts: Fix omap4 hang with GPS connected to USB by using wakeupgen
ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function
ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context
usb: build drivers/usb/common/ when USB_SUPPORT is set
usbip: keep usbip_device sockfd state in sync with tcp_socket
staging: iio: ad5933: switch buffer mode to software
staging: iio: adc: ad7192: fix external frequency setting
binder: check for binder_thread allocation failure in binder_poll()
staging: android: ashmem: Fix a race condition in pin ioctls
dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock
arm64: dts: add #cooling-cells to CPU nodes
ARM: 8743/1: bL_switcher: add MODULE_LICENSE tag
video: fbdev/mmp: add MODULE_LICENSE
ASoC: ux500: add MODULE_LICENSE tag
crypto: hash - prevent using keyed hashes without setting key
crypto: hash - annotate algorithms taking optional key
net: avoid skb_warn_bad_offload on IS_ERR
rds: tcp: atomically purge entries from rds_tcp_conn_list during netns delete
netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert
netfilter: xt_cgroup: initialize info->priv in cgroup_mt_check_v1()
netfilter: on sockopt() acquire sock lock only in the required scope
netfilter: ipt_CLUSTERIP: fix out-of-bounds accesses in clusterip_tg_check()
netfilter: x_tables: avoid out-of-bounds reads in xt_request_find_{match|target}
netfilter: x_tables: fix int overflow in xt_alloc_table_info()
kcov: detect double association with a single task
KVM: x86: fix escape of guest dr6 to the host
blk_rq_map_user_iov: fix error override
staging: android: ion: Switch from WARN to pr_warn
staging: android: ion: Add __GFP_NOWARN for system contig heap
crypto: x86/twofish-3way - Fix %rbp usage
selinux: skip bounded transition processing if the policy isn't loaded
selinux: ensure the context is NUL terminated in security_context_to_sid_core()
Provide a function to create a NUL-terminated string from unterminated data
ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE
drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all
blktrace: fix unlocked registration of tracepoints
sctp: set frag_point in sctp_setsockopt_maxseg correctly
xfrm: check id proto in validate_tmpl()
xfrm: Fix stack-out-of-bounds read on socket policy lookup.
mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed.
xfrm: skip policies marked as dead while rehashing
cfg80211: check dev_set_name() return value
kcm: Only allow TCP sockets to be attached to a KCM mux
kcm: Check if sk_user_data already set in kcm_attach
vhost: use mutex_lock_nested() in vhost_dev_lock_vqs()
ANDROID: sdcardfs: Hold i_mutex for i_size_write
UPSTREAM: ANDROID: binder: synchronize_rcu() when using POLLFREE.
BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck64-XTS
BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck128-XTS
BACKPORT, FROMGIT: crypto: arm/speck - add NEON-accelerated implementation of Speck-XTS
FROMGIT: crypto: speck - export common helpers
BACKPORT, FROMGIT: crypto: speck - add support for the Speck block cipher
f2fs: updates on v4.16-rc1
Linux 4.9.83
media: r820t: fix r820t_write_reg for KASAN
ARM: dts: Delete bogus reference to the charlcd
arm: dts: mt2701: Add reset-cells
ARM: dts: s5pv210: add interrupt-parent for ohci
arm64: dts: msm8916: Add missing #phy-cells
ARM: pxa/tosa-bt: add MODULE_LICENSE tag
ARM: dts: exynos: fix RTC interrupt for exynos5410
vfs: don't do RCU lookup of empty pathnames
x86: fix build warnign with 32-bit PAE
x86/cpu: Change type of x86_cache_size variable to unsigned int
x86/spectre: Fix an error message
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
selftests/x86/mpx: Fix incorrect bounds with old _sigfault
x86/speculation: Add <asm/msr-index.h> dependency
nospec: Move array_index_nospec() parameter checking into separate macro
x86/speculation: Fix up array_index_nospec_mask() asm constraint
selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c
selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c
selftests/x86/pkeys: Remove unused functions
x86/speculation: Clean up various Spectre related details
X86/nVMX: Properly set spec_ctrl and pred_cmd before merging MSRs
KVM/x86: Reduce retpoline performance impact in slot_handle_level_range(), by always inlining iterator helper methods
x86/speculation: Correct Speculation Control microcode blacklist again
x86/speculation: Update Speculation Control microcode blacklist
compiler-gcc.h: Introduce __optimize function attribute
x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface
arm: spear13xx: Fix spics gpio controller's warning
arm: spear13xx: Fix dmas cells
arm: spear600: Add missing interrupt-parent of rtc
ARM: dts: nomadik: add interrupt-parent for clcd
ARM: dts: STi: Add gpio polarity for "hdmi,hpd-gpio" property
ARM: lpc3250: fix uda1380 gpio numbers
arm64: dts: msm8916: Correct ipc references for smsm
s390: fix handling of -1 in set{,fs}[gu]id16 syscalls
ocfs2: try a blocking lock before return AOP_TRUNCATED_PAGE
PM / devfreq: Propagate error from devfreq_add_device()
cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
RDMA/rxe: Fix a race condition related to the QP error state
kselftest: fix OOM in memory compaction test
IB/mlx4: Fix incorrectly releasing steerable UD QPs when have only ETH ports
IB/qib: Fix comparison error with qperf compare/swap test
powerpc: fix build errors in stable tree
dm: correctly handle chained bios in dec_pending()
usb: Move USB_UHCI_BIG_ENDIAN_* out of USB_SUPPORT
mvpp2: fix multicast address filter
ALSA: seq: Fix racy pool initializations
ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204
ALSA: hda/realtek: PCI quirk for Fujitsu U7x7
ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform
ALSA: usb-audio: Fix UAC2 get_ctl request with a RANGE attribute
ALSA: hda - Fix headset mic detection problem for two Dell machines
mtd: nand: vf610: set correct ooblayout
9p/trans_virtio: discard zero-length reply
Btrfs: fix unexpected -EEXIST when creating new inode
Btrfs: fix btrfs_evict_inode to handle abnormal inodes correctly
Btrfs: fix extent state leak from tree log
Btrfs: fix crash due to not cleaning up tree log block's dirty bits
Btrfs: fix deadlock in run_delalloc_nocow
target/iscsi: avoid NULL dereference in CHAP auth error path
rtlwifi: rtl8821ae: Fix connection lost problem correctly
console/dummy: leave .con_font_get set to NULL
video: fbdev: atmel_lcdfb: fix display-timings lookup
PCI: keystone: Fix interrupt-controller-node lookup
MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN
mm: Fix memory size alignment in devm_memremap_pages_release()
mm: hide a #warning for COMPILE_TEST
ext4: correct documentation for grpid mount option
ext4: save error to disk in __ext4_grp_locked_error()
ext4: fix a race in the ext4 shutdown path
jbd2: fix sphinx kernel-doc build warnings
mbcache: initialize entry->e_referenced in mb_cache_entry_create()
rtc-opal: Fix handling of firmware error codes, prevent busy loops
drm/radeon: adjust tested variable
drm/radeon: Add dpm quirk for Jet PRO (v2)
scsi: smartpqi: allow static build ("built-in")
BACKPORT: tee: shm: Potential NULL dereference calling tee_shm_register()
BACKPORT: tee: shm: don't put_page on null shm->pages
BACKPORT: tee: shm: make function __tee_shm_alloc static
BACKPORT: tee: optee: check type of registered shared memory
BACKPORT: tee: add start argument to shm_register callback
BACKPORT: tee: optee: fix header dependencies
BACKPORT: tee: shm: inline tee_shm_get_id()
BACKPORT: tee: use reference counting for tee_context
BACKPORT: tee: optee: enable dynamic SHM support
BACKPORT: tee: optee: add optee-specific shared pool implementation
BACKPORT: tee: optee: store OP-TEE capabilities in private data
BACKPORT: tee: optee: add registered buffers handling into RPC calls
BACKPORT: tee: optee: add registered shared parameters handling
BACKPORT: tee: optee: add shared buffer registration functions
BACKPORT: tee: optee: add page list manipulation functions
BACKPORT: tee: optee: Update protocol definitions
BACKPORT: tee: shm: add page accessor functions
BACKPORT: tee: shm: add accessors for buffer size and page offset
BACKPORT: tee: add register user memory
BACKPORT: tee: flexible shared memory pool creation
BACKPORT: optee: support asynchronous supplicant requests
BACKPORT: tee: add TEE_IOCTL_PARAM_ATTR_META
BACKPORT: tee: add tee_param_is_memref() for driver use
UPSTREAM: tcp: fix access to sk->sk_state in tcp_poll()
BACKPORT: tcp: fix potential double free issue for fastopen_req
BACKPORT: xfrm: Fix return value check of copy_sec_ctx.
time: Fix ktime_get_raw() incorrect base accumulation
FROMLIST: coresight: ETM: Add support for ARM Cortex-A73
FROMLIST: coresight: tmc: implementing TMC-ETR AUX space API
UPSTREAM: coresight: etm_perf: Fix using uninitialised work
UPSTREAM: coresight: fix kernel panic caused by invalid CPU
UPSTREAM: coresight: Fix disabling of CoreSight TPIU
UPSTREAM: coresight: perf: Add a missing call to etm_free_aux
UPSTREAM: coresight: tmc: Remove duplicate memset
UPSTREAM: coresight: tmc: Get rid of mode parameter for helper routines
UPSTREAM: coresight: tmc: Cleanup operation mode handling
UPSTREAM: coresight: reset "enable_sink" flag when need be
sched/fair: prevent possible infinite loop in sched_group_energy
ANDROID: qtaguid: Fix the UAF probelm with tag_ref_tree
UPSTREAM: ANDROID: binder: remove waitqueue when thread exits.
ANDROID: sdcardfs: Protect set_top
ANDROID: fsnotify: Notify lower fs of open
Revert "ANDROID: sdcardfs: notify lower file of opens"
ANDROID: sdcardfs: Use lower getattr times/size
ANDROID: sched: EAS: check energy_aware() before calling select_energy_cpu_brute() in up-migrate path
UPSTREAM: eventpoll.h: add missing epoll event masks
BACKPORT: thermal/drivers/hisi: Add support for hi3660 SoC
BACKPORT: thermal/drivers/hisi: Prepare to add support for other hisi platforms
BACKPORT: thermal/drivers/hisi: Add platform prefix to function name
BACKPORT: thermal/drivers/hisi: Put platform code together
BACKPORT: thermal/drivers/hisi: Use round up step value
BACKPORT: thermal/drivers/hisi: Move the clk setup in the corresponding functions
BACKPORT: thermal/drivers/hisi: Remove mutex_lock in the code
BACKPORT: thermal/drivers/hisi: Remove thermal data back pointer
BACKPORT: thermal/drivers/hisi: Convert long to int
BACKPORT: thermal/drivers/hisi: Rename and remove unused field
BACKPORT: thermal/drivers/hisi: Remove costly sensor inspection
BACKPORT: thermal/drivers/hisi: Fix configuration register setting
BACKPORT: thermal/drivers/hisi: Encapsulate register writes into helpers
BACKPORT: thermal/drivers/hisi: Remove pointless lock
BACKPORT: thermal/drivers/hisi: Remove the multiple sensors support
BACKPORT: thermal: hisilicon: constify thermal_zone_of_device_ops structures
ANDROID: xattr: Pass EOPNOTSUPP to permission2
ANDROID: sdcardfs: Move default_normal to superblock
UPSTREAM: tcp: fix a request socket leak
UPSTREAM: tcp: fix possible deadlock in TCP stack vs BPF filter
UPSTREAM: tcp: Add a tcp_filter hook before handle ack packet
FROMLIST: arm64: kpti: Fix the interaction between ASID switching and software PAN
FROMLIST: arm64: Move post_ttbr_update_workaround to C code
fscrypt: updates on 4.15-rc4
ANDROID: uid_sys_stats: fix the comment
BACKPORT: optee: fix invalid of_node_put() in optee_driver_init()
BACKPORT: tee: optee: sync with new naming of interrupts
BACKPORT: tee: indicate privileged dev in gen_caps
BACKPORT: tee: optee: interruptible RPC sleep
BACKPORT: tee: optee: add const to tee_driver_ops and tee_desc structures
BACKPORT: tee: tee_shm: Constify dma_buf_ops structures.
BACKPORT: tee: add forward declaration for struct device
BACKPORT: tee: optee: fix uninitialized symbol 'parg'
BACKPORT: tee.txt: standardize document format
BACKPORT: tee: add ARM_SMCCC dependency
clocksource: arch_timer: make virtual counter access configurable
arm64: issue isb when trapping CNTVCT_EL0 access
BACKPORT: arm64: Add CNTFRQ_EL0 trap handler
BACKPORT: arm64: Add CNTVCT_EL0 trap handler
ANDROID: sdcardfs: Fix missing break on default_normal
ANDROID: arm64: kaslr: fixup Falkor workaround for 4.9
ANDROID: usb: f_fs: Prevent gadget unbind if it is already unbound
arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry
arm64: use RET instruction for exiting the trampoline
UPSTREAM: arm64: kaslr: Put kernel vectors address in separate data page
UPSTREAM: arm64: mm: Introduce TTBR_ASID_MASK for getting at the ASID in the TTBR
UPSTREAM: arm64: Kconfig: Add CONFIG_UNMAP_KERNEL_AT_EL0
UPSTREAM: arm64: entry: Add fake CPU feature for unmapping the kernel at EL0
UPSTREAM: arm64: tls: Avoid unconditional zeroing of tpidrro_el0 for native tasks
UPSTREAM: arm64: erratum: Work around Falkor erratum #E1003 in trampoline code
UPSTREAM: arm64: entry: Hook up entry trampoline to exception vectors
UPSTREAM: arm64: entry: Explicitly pass exception level to kernel_ventry macro
UPSTREAM: arm64: mm: Map entry trampoline into trampoline and kernel page tables
UPSTREAM: arm64: entry: Add exception trampoline page for exceptions from EL0
UPSTREAM: arm64: mm: Invalidate both kernel and user ASIDs when performing TLBI
UPSTREAM: arm64: mm: Add arm64_kernel_unmapped_at_el0 helper
UPSTREAM: arm64: mm: Allocate ASIDs in pairs
UPSTREAM: arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN
UPSTREAM: arm64: mm: Rename post_ttbr0_update_workaround
UPSTREAM: arm64: mm: Move ASID from TTBR0 to TTBR1
UPSTREAM: arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN
UPSTREAM: arm64: mm: Use non-global mappings for kernel space
UPSTREAM: arm64: factor out entry stack manipulation
ANDROID: sdcardfs: Add default_normal option
ANDROID: sdcardfs: notify lower file of opens
blkdev: Refactoring block io latency histogram codes
UPSTREAM: netfilter: conntrack: use power efficient workqueue
ANDROID: binder: Remove obsolete proc waitqueue.
UPSTREAM: arm64: setup: introduce kaslr_offset()
UPSTREAM: kcov: fix comparison callback signature
UPSTREAM: kcov: support comparison operands collection
UPSTREAM: kcov: remove pointless current != NULL check
UPSTREAM: kcov: support compat processes
UPSTREAM: kcov: simplify interrupt check
UPSTREAM: kcov: make kcov work properly with KASLR enabled
UPSTREAM: kcov: add more missing includes
BACKPORT: irq: Make the irqentry text section unconditional
UPSTREAM: kasan: make get_wild_bug_type() static
UPSTREAM: kasan: separate report parts by empty lines
UPSTREAM: kasan: improve double-free report format
UPSTREAM: kasan: print page description after stacks
UPSTREAM: kasan: improve slab object description
UPSTREAM: kasan: change report header
UPSTREAM: kasan: simplify address description logic
UPSTREAM: kasan: change allocation and freeing stack traces headers
UPSTREAM: kasan: unify report headers
UPSTREAM: kasan: introduce helper functions for determining bug type
BACKPORT: kasan: report only the first error by default
UPSTREAM: kasan: fix races in quarantine_remove_cache()
UPSTREAM: kasan: resched in quarantine_remove_cache()
UPSTREAM: kasan, sched/headers: Uninline kasan_enable/disable_current()
UPSTREAM: kasan: drain quarantine of memcg slab objects
UPSTREAM: kasan: eliminate long stalls during quarantine reduction
UPSTREAM: kasan: support panic_on_warn
ANDROID: dma-buf/sw_sync: Rename active_list to link
ANDROID: initramfs: call free_initrd() when skipping init
BACKPORT: Documentation: tee subsystem and op-tee driver
BACKPORT: tee: add OP-TEE driver
BACKPORT: tee: generic TEE subsystem
BACKPORT: dt/bindings: add bindings for optee
BACKPORT: schedutil: Reset cached freq if it is not in sync with next_freq
sched: EAS/WALT: Don't take into account of running task's util
sched: EAS/WALT: take into account of waking task's load
sched: EAS: upmigrate misfit current task
sched: avoid pushing tasks to an offline CPU
sched: Extend active balance to accept 'push_task' argument
sched: walt: Correct WALT window size initialization
sched: WALT: account cumulative window demand
sched: EAS/WALT: finish accounting prior to task_tick
sched/fair: prevent meaningless active migration
sched: walt: Leverage existing helper APIs to apply invariance
UPSTREAM: net: xfrm: allow clearing socket xfrm policies.
UPSTREAM: time: Clean up CLOCK_MONOTONIC_RAW time handling
UPSTREAM: arm64: vdso: fix clock_getres for 4GiB-aligned res
f2fs: updates on 4.15-rc1
UPSTREAM: android: binder: fix type mismatch warning
BACKPORT: arm64: Use __pa_symbol for empty_zero_page
UPSTREAM: arm64: Use __pa_symbol for kernel symbols
UPSTREAM: mm: Introduce lm_alias
FROMLIST: binder: fix proc->files use-after-free
BACKPORT: xfrm: Clear sk_dst_cache when applying per-socket policy.
sched: WALT: fix potential overflow
sched: Update task->on_rq when tasks are moving between runqueues
sched: WALT: fix window mis-alignment
sched: EAS: kill incorrect nohz idle cpu kick
sched: EAS: fix incorrect energy delta calculation due to rounding error
sched: EAS/WALT: use cr_avg instead of prev_runnable_sum
sched: WALT: fix broken cumulative runnable average accounting
sched: deadline: WALT: account cumulative runnable avg
ANDROID: binder: clarify deferred thread work.
BACKPORT: net/tcp-fastopen: Add new API support
UPSTREAM: net: Remove __sk_dst_reset() in tcp_v6_connect()
UPSTREAM: net/tcp-fastopen: refactor cookie check logic
sched: compute task utilisation with WALT consistently
FROMLIST: arm64: Avoid aligning normal memory pointers in __memcpy_{to,from}io
UPSTREAM: security: bpf: replace include of linux/bpf.h with forward declarations
UPSTREAM: selinux: bpf: Add addtional check for bpf object file receive
UPSTREAM: selinux: bpf: Add selinux check for eBPF syscall operations
BACKPORT: security: bpf: Add LSM hooks for bpf object related syscall
BACKPORT: bpf: Add file mode configuration into bpf maps
cpufreq: Drop schedfreq governor
ANDROID: Revert "arm64: move ELF_ET_DYN_BASE to 4GB / 4MB"
ANDROID: Revert "arm: move ELF_ET_DYN_BASE to 4MB"
sched: EAS: Fix the condition to distinguish energy before/after
sched: EAS: update trg_cpu to backup_cpu if no energy saving for target_cpu
sched/fair: consider task utilization in group_max_util()
sched/fair: consider task utilization in group_norm_util()
sched/fair: enforce EAS mode
sched/fair: ignore backup CPU when not valid
sched/fair: trace energy_diff for non boosted tasks
UPSTREAM: sched/fair: Sync task util before slow-path wakeup
UPSTREAM: sched/core: Add missing update_rq_clock() call in set_user_nice()
UPSTREAM: sched/core: Add missing update_rq_clock() call for task_hot()
UPSTREAM: sched/core: Add missing update_rq_clock() in detach_task_cfs_rq()
UPSTREAM: sched/core: Add missing update_rq_clock() in post_init_entity_util_avg()
UPSTREAM: sched/fair: Fix task group initialization
cpufreq/sched: Consider max cpu capacity when choosing frequencies
cpufreq/sched: Use cpu max freq rather than policy max
sched/fair: remove erroneous RCU_LOCKDEP_WARN from start_cpu()
FROMLIST: ALSA: usx2y: Suppress kernel warning at page allocation failures
FROMLIST: kbuild: clang: fix build failures with sparse check
Revert "Revert "BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub""
BACKPORT: efi/libstub: Unify command line param parsing
ANDROID: sched/walt: Fix divide by zero error in cpufreq notifier
ANDROID: binder: show high watermark of alloc->pages.
ANDROID: binder: Add thread->process_todo flag.
ANDROID: sched/fair: Select correct capacity state for energy_diff
ANDROID: cpufreq-dt: Set sane defaults for schedutil rate limits
BACKPORT: cpufreq: schedutil: Use policy-dependent transition delays
Revert "BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub"
FROMLIST: android: binder: Fix null ptr dereference in debug msg
FROMLIST: android: binder: Change binder_shrinker to static
UPSTREAM: arm64: compat: Remove leftover variable declaration
ANDROID: HACK: arm64: use -mno-implicit-float instead of -mgeneral-regs-only
ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple
CHROMIUM: arm64: Disable asm-operand-width warning for clang
CHROMIUM: kbuild: clang: Disable the 'duplicate-decl-specifier' warning
BACKPORT: x86/asm: Fix inline asm call constraints for Clang
BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub
UPSTREAM: efi/libstub/arm64: Force 'hidden' visibility for section markers
UPSTREAM: efi/libstub/arm64: Use hidden attribute for struct screen_info reference
UPSTREAM: x86/build: Use cc-option to validate stack alignment parameter
UPSTREAM: x86/build: Fix stack alignment for CLang
UPSTREAM: compiler, clang: always inline when CONFIG_OPTIMIZE_INLINING is disabled
UPSTREAM: x86/boot: #undef memcpy() et al in string.c
UPSTREAM: llist: clang: introduce member_address_is_nonnull()
UPSTREAM: crypto: arm64/sha - avoid non-standard inline asm tricks
UPSTREAM: kbuild: clang: Disable 'address-of-packed-member' warning
UPSTREAM: x86/build: Specify stack alignment for clang
UPSTREAM: x86/build: Use __cc-option for boot code compiler options
UPSTREAM: kbuild: Add __cc-option macro
UPSTREAM: x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility
UPSTREAM: crypto, x86: aesni - fix token pasting for clang
UPSTREAM: x86/kbuild: Use cc-option to enable -falign-{jumps/loops}
UPSTREAM: compiler, clang: properly override 'inline' for clang
UPSTREAM: compiler, clang: suppress warning for unused static inline functions
UPSTREAM: modules: mark __inittest/__exittest as __maybe_unused
UPSTREAM: kbuild: Add support to generate LLVM assembly files
UPSTREAM: kbuild: use -Oz instead of -Os when using clang
UPSTREAM: kbuild, LLVMLinux: Add -Werror to cc-option to support clang
UPSTREAM: kbuild: drop -Wno-unknown-warning-option from clang options
UPSTREAM: kbuild: fix asm-offset generation to work with clang
UPSTREAM: kbuild: consolidate redundant sed script ASM offset generation
UPSTREAM: kbuild: Consolidate header generation from ASM offset information
UPSTREAM: kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
UPSTREAM: kbuild: Add better clang cross build support
FROMLIST: f2fs: expose some sectors to user in inline data or dentry case
UPSTREAM: sched/fair: Fix usage of find_idlest_group() when the local group is idlest
UPSTREAM: sched/fair: Fix usage of find_idlest_group() when no groups are allowed
UPSTREAM: sched/fair: Fix find_idlest_group() when local group is not allowed
UPSTREAM: sched/fair: Remove unnecessary comparison with -1
UPSTREAM: sched/fair: Move select_task_rq_fair() slow-path into its own function
UPSTREAM: sched/fair: Force balancing on NOHZ balance if local group has capacity
UPSTREAM: f2fs: fix potential panic during fstrim
f2fs: catch up to v4.14-rc1
UPSTREAM: sched: use load_avg for selecting idlest group
UPSTREAM: sched: fix find_idlest_group for fork
ANDROID: binder: fix node sched policy calculation
ANDROID: binder: init desired_prio.sched_policy before use it
BACKPORT: net: xfrm: support setting an output mark.
FROMLIST: tracing: Add support for preempt and irq enable/disable events
FROMLIST: tracing: Prepare to add preempt and irq trace events
Conflicts:
arch/arm64/Kconfig
arch/arm64/include/asm/assembler.h
arch/arm64/include/asm/cpucaps.h
arch/arm64/include/asm/efi.h
arch/arm64/include/asm/memory.h
arch/arm64/include/asm/mmu.h
arch/arm64/include/asm/mmu_context.h
arch/arm64/kernel/cpufeature.c
arch/arm64/kernel/io.c
arch/arm64/kernel/setup.c
arch/arm64/kernel/vdso.c
arch/arm64/mm/context.c
arch/arm64/mm/mmu.c
drivers/Kconfig
drivers/Makefile
drivers/cpufreq/Kconfig
drivers/hwtracing/coresight/coresight-etm4x.c
drivers/hwtracing/coresight/coresight-priv.h
drivers/hwtracing/coresight/coresight-tmc-etr.c
drivers/hwtracing/coresight/coresight.c
drivers/scsi/ufs/ufshcd.h
drivers/staging/android/ion/ion-ioctl.c
drivers/staging/android/ion/ion_system_heap.c
drivers/usb/dwc3/gadget.c
include/linux/sched.h
include/trace/events/sched.h
kernel/kcov.c
kernel/sched/core.c
kernel/sched/cpufreq_sched.c
kernel/sched/cpufreq_schedutil.c
kernel/sched/fair.c
kernel/sched/sched.h
kernel/sched/walt.c
kernel/sched/walt.h
mm/kasan/report.c
security/security.c
security/selinux/hooks.c
Change-Id: I0ec8cbca6cb6384e22fbbe8def8a9d228229dc48
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
commit f35157417215ec138c920320c746fdb3e04ef1d5 upstream.
Provide a function, kmemdup_nul(), that will create a NUL-terminated string
from an unterminated character array where the length is known in advance.
This is better than kstrndup() in situations where we already know the
string length as the strnlen() in kstrndup() is superfluous.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newer version of gcc keeps the calls to __write_overflow which is only a
compile time check. __write_overflow is implemented as error function
and as a result all the string functions fail with the overflow error.
Work around the gcc issue by defining the overflow functions as no-op.
Change-Id: I41c2bb6d35c1a308c1a4e9c1d484ad6ad2bf7d3f
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
Using strscpy was wrong because FORTIFY_SOURCE is passing the maximum
possible size of the outermost object, but strscpy defines the count
parameter as the exact buffer size, so this could copy past the end of
the source. This would still be wrong with the planned usage of
__builtin_object_size(p, 1) for intra-object overflow checks since it's
the maximum possible size of the specified object with no guarantee of
it being that large.
Reuse of the fortified functions like this currently makes the runtime
error reporting less precise but that can be improved later on.
Noticed by Dave Jones and KASAN.
Change-Id: I559abc94e1fd8acaa97cfc2c23d454caa43ce804
Signed-off-by: Daniel Micay <danielmicay@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 077d2ba519b2e8bf1abd80cbade699b1de42cafe
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
This reverts commit 4c5c1c70bb.
The author attribution is incorrect and will be corrected soon.
Change-Id: I97767788e2ca5a827ffd2f4730877f211382826e
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
Using strscpy was wrong because FORTIFY_SOURCE is passing the maximum
possible size of the outermost object, but strscpy defines the count
parameter as the exact buffer size, so this could copy past the end of
the source. This would still be wrong with the planned usage of
__builtin_object_size(p, 1) for intra-object overflow checks since it's
the maximum possible size of the specified object with no guarantee of
it being that large.
Reuse of the fortified functions like this currently makes the runtime
error reporting less precise but that can be improved later on.
Noticed by Dave Jones and KASAN.
Change-Id: I0b485afdcab001002152d39ade3189db6dbaa1c8
Signed-off-by: Daniel Micay <danielmicay@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 077d2ba519b2e8bf1abd80cbade699b1de42cafe
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
This adds support for compiling with a rough equivalent to the glibc
_FORTIFY_SOURCE=1 feature, providing compile-time and runtime buffer
overflow checks for string.h functions when the compiler determines the
size of the source or destination buffer at compile-time. Unlike glibc,
it covers buffer reads in addition to writes.
GNU C __builtin_*_chk intrinsics are avoided because they would force a
much more complex implementation. They aren't designed to detect read
overflows and offer no real benefit when using an implementation based
on inline checks. Inline checks don't add up to much code size and
allow full use of the regular string intrinsics while avoiding the need
for a bunch of _chk functions and per-arch assembly to avoid wrapper
overhead.
This detects various overflows at compile-time in various drivers and
some non-x86 core kernel code. There will likely be issues caught in
regular use at runtime too.
Future improvements left out of initial implementation for simplicity,
as it's all quite optional and can be done incrementally:
* Some of the fortified string functions (strncpy, strcat), don't yet
place a limit on reads from the source based on __builtin_object_size of
the source buffer.
* Extending coverage to more string functions like strlcat.
* It should be possible to optionally use __builtin_object_size(x, 1) for
some functions (C strings) to detect intra-object overflows (like
glibc's _FORTIFY_SOURCE=2), but for now this takes the conservative
approach to avoid likely compatibility issues.
* The compile-time checks should be made available via a separate config
option which can be enabled by default (or always enabled) once enough
time has passed to get the issues it catches fixed.
Kees said:
"This is great to have. While it was out-of-tree code, it would have
blocked at least CVE-2016-3858 from being exploitable (improper size
argument to strlcpy()). I've sent a number of fixes for
out-of-bounds-reads that this detected upstream already"
Change-Id: I4c6ba947ffc296caf1b074f7ef4a3b64877230ea
[arnd@arndb.de: x86: fix fortified memcpy]
Link: http://lkml.kernel.org/r/20170627150047.660360-1-arnd@arndb.de
[keescook@chromium.org: avoid panic() in favor of BUG()]
Link: http://lkml.kernel.org/r/20170626235122.GA25261@beast
[keescook@chromium.org: move from -mm, add ARCH_HAS_FORTIFY_SOURCE, tweak Kconfig help]
Link: http://lkml.kernel.org/r/20170526095404.20439-1-danielmicay@gmail.com
Link: http://lkml.kernel.org/r/1497903987-21002-8-git-send-email-keescook@chromium.org
Signed-off-by: Daniel Micay <danielmicay@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 6974f0c4555e285ab217cee58b6e874f776ff409
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
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>
Similar to memdup_user(), except that allocated buffer is one byte
longer and '\0' is stored after the copied data.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The strscpy() API is intended to be used instead of strlcpy(),
and instead of most uses of strncpy().
- Unlike strlcpy(), it doesn't read from memory beyond (src + size).
- Unlike strlcpy() or strncpy(), the API provides an easy way to check
for destination buffer overflow: an -E2BIG error return value.
- The provided implementation is robust in the face of the source
buffer being asynchronously changed during the copy, unlike the
current implementation of strlcpy().
- Unlike strncpy(), the destination buffer will be NUL-terminated
if the string in the source buffer is too long.
- Also unlike strncpy(), the destination buffer will not be updated
beyond the NUL termination, avoiding strncpy's behavior of zeroing
the entire tail end of the destination buffer. (A memset() after
the strscpy() can be used if this behavior is desired.)
- The implementation should be reasonably performant on all
platforms since it uses the asm/word-at-a-time.h API rather than
simple byte copy. Kernel-to-kernel string copy is not considered
to be performance critical in any case.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Strings are sometimes sanitized by replacing a certain character (often
'/') by another (often '!'). In a few places, this is done the same way
Schlemiel the Painter would do it. Others are slightly smarter but still
do multiple strchr() calls. Introduce strreplace() to do this using a
single function call and a single pass over the string.
One would expect the return value to be one of three things: void, s, or
the number of replacements made. I chose the fourth, returning a pointer
to the end of the string. This is more likely to be useful (for example
allowing the caller to avoid a strlen call).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Neil Brown <neilb@suse.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kstrdup() is often used to duplicate strings where neither source neither
destination will be ever modified. In such case we can just reuse the
source instead of duplicating it. The problem is that we must be sure
that the source is non-modifiable and its life-time is long enough.
I suspect the good candidates for such strings are strings located in
kernel .rodata section, they cannot be modifed because the section is
read-only and their life-time is equal to kernel life-time.
This small patchset proposes alternative version of kstrdup -
kstrdup_const, which returns source string if it is located in .rodata
otherwise it fallbacks to kstrdup. To verify if the source is in
.rodata function checks if the address is between sentinels
__start_rodata, __end_rodata. I guess it should work with all
architectures.
The main patch is accompanied by four patches constifying kstrdup for
cases where situtation described above happens frequently.
I have tested the patchset on mobile platform (exynos4210-trats) and it
saves 3272 string allocations. Since minimal allocation is 32 or 64
bytes depending on Kconfig options the patchset saves respectively about
100KB or 200KB of memory.
Stats from tested platform show that the main offender is sysfs:
By caller:
2260 __kernfs_new_node
631 clk_register+0xc8/0x1b8
318 clk_register+0x34/0x1b8
51 kmem_cache_create
12 alloc_vfsmnt
By string (with count >= 5):
883 power
876 subsystem
135 parameters
132 device
61 iommu_group
...
This patch (of 5):
Add an alternative version of kstrdup which returns pointer to constant
char array. The function checks if input string is in persistent and
read-only memory section, if yes it returns the input string, otherwise it
fallbacks to kstrdup.
kstrdup_const is accompanied by kfree_const performing conditional memory
deallocation of the string.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
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: Tejun Heo <tj@kernel.org>
Cc: Greg KH <greg@kroah.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull /dev/random updates from Ted Ts'o:
"This adds a memzero_explicit() call which is guaranteed not to be
optimized away by GCC. This is important when we are wiping
cryptographically sensitive material"
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
crypto: memzero_explicit - make sure to clear out sensitive data
random: add and use memzero_explicit() for clearing data
zatimend has reported that in his environment (3.16/gcc4.8.3/corei7)
memset() calls which clear out sensitive data in extract_{buf,entropy,
entropy_user}() in random driver are being optimized away by gcc.
Add a helper memzero_explicit() (similarly as explicit_bzero() variants)
that can be used in such cases where a variable with sensitive data is
being cleared out in the end. Other use cases might also be in crypto
code. [ I have put this into lib/string.c though, as it's always built-in
and doesn't need any dependencies then. ]
Fixes kernel bugzilla: 82041
Reported-by: zatimend@hotmail.co.uk
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
The previous patch made strnicmp into a wrapper for strncasecmp.
This patch makes all in-tree users of strnicmp call strncasecmp
directly, while still making sure that the strnicmp symbol can be used
by out-of-tree modules. It should be considered a temporary hack until
all in-tree callers have been converted.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The strchrnul() variant helpfully returns a the end of the string
instead of a NULL if the requested character is not found. This can
simplify string parsing code since it doesn't need to expicitly check
for a NULL return. If a valid string pointer is passed in, then a valid
null terminated string will always come back out.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
memweight() is the function that counts the total number of bits set in
memory area. Unlike bitmap_weight(), memweight() takes pointer and size
in bytes to specify a memory area which does not need to be aligned to
long-word boundary.
[akpm@linux-foundation.org: rename `w' to `ret']
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Anders Larsen <al@alarsen.net>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a rename of the usr_strtobool proposal, which was a renamed,
relocated and fixed version of previous kstrtobool RFC
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Recently, We marked strstrip() as must_check. because it was frequently
misused and it should be checked. However, we found one exception.
scsi/ipr.c intentionally ignore return value of strstrip. Because it
wishes to keep the whitespace at the beginning.
Thus we need to keep with and without checked whitespace trim function.
This patch adds a new strim() and changes ipr.c to use it.
[akpm@linux-foundation.org: coding-style fixes]
Suggested-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On the following sentence:
while (*s && isspace(*s))
s++;
If *s == 0, isspace() evaluates to ((_ctype[*s] & 0x20) != 0), which
evaluates to ((0x08 & 0x20) != 0) which equals to 0 as well.
If *s == 1, we depend on isspace() result anyway. In other words,
"a char equals zero is never a space", so remove this check.
Also, *s != 0 is most common case (non-null string).
Fixed const return as noticed by Jan Engelhardt and James Bottomley.
Fixed unnecessary extra cast on strstrip() as noticed by Jan Engelhardt.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
strstrip() can return a modified value of its input argument, when
removing elading whitesapce. So it is surely bug for this function's
return value to be ignored. The caller is probably going to use the
incorrect original pointer.
So mark it __must_check to prevent this frm happening (as it has before).
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param:
module: use strstarts()
strstarts: helper function for !strncmp(str, prefix, strlen(prefix))
arm: allow usage of string functions in linux/string.h
module: don't use stop_machine on module load
module: create a request_module_nowait()
module: include other structures in module version check
module: remove the SHF_ALLOC flag on the __versions section.
module: clarify the force-loading taint message.
module: Export symbols needed for Ksplice
Ksplice: Add functions for walking kallsyms symbols
module: remove module_text_address()
module: __module_address
module: Make find_symbol return a struct kernel_symbol
kernel/module.c: fix an unused goto label
param: fix charp parameters set via sysfs
Fix trivial conflicts in kernel/extable.c manually.
* 'printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
printk: correct the behavior of printk_timed_ratelimit()
vsprintf: unify the format decoding layer for its 3 users, cleanup
fix regression from "vsprintf: unify the format decoding layer for its 3 users"
vsprintf: fix bug in negative value printing
vsprintf: unify the format decoding layer for its 3 users
vsprintf: add binary printf
printk: introduce printk_once()
Fix trivial conflicts (printk_once vs log_buf_kexec_setup() added near
each other) in include/linux/kernel.h.
I notice there are many places doing copy_from_user() which follows
kmalloc():
dst = kmalloc(len, GFP_KERNEL);
if (!dst)
return -ENOMEM;
if (copy_from_user(dst, src, len)) {
kfree(dst);
return -EFAULT
}
memdup_user() is a wrapper of the above code. With this new function, we
don't have to write 'len' twice, which can lead to typos/mistakes. It
also produces smaller code and kernel text.
A quick grep shows 250+ places where memdup_user() *may* be used. I'll
prepare a patchset to do this conversion.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Americo Wang <xiyou.wangcong@gmail.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Impact: minor new API
ksplice added a "starts_with" function, which seems like a common need.
When people open-code it they seem to use fixed numbers rather than strlen,
so it's quite a readability win (also, strncmp() almost always wants != 0
on it).
So here's strstarts().
Cc: Anders Kaseorg <andersk@mit.edu>
Cc: Jeff Arnold <jbarnold@mit.edu>
Cc: Tim Abbott <tabbott@mit.edu>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Impact: add new APIs for binary trace printk infrastructure
vbin_printf(): write args to binary buffer, string is copied
when "%s" is occurred.
bstr_printf(): read from binary buffer for args and format a string
[fweisbec@gmail.com: rebase]
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1236356510-8381-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Add a new sysfs_streq() string comparison function, which ignores
the trailing newlines found in sysfs inputs. By example:
sysfs_streq("a", "b") ==> false
sysfs_streq("a", "a") ==> true
sysfs_streq("a", "a\n") ==> true
sysfs_streq("a\n", "a") ==> true
This is intended to simplify parsing of sysfs inputs, letting them
avoid the need to manually strip off newlines from inputs.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It wants string functions like memcpy() for inline
routines, and these define userland interfaces.
The only clean way to deal with this is to simply
put linux/string.h into unifdef-y and have it
include <string.h> when not-__KERNEL__.
Signed-off-by: David S. Miller <davem@davemloft.net>
argv_split() is a helper function which takes a string, splits it at
whitespace, and returns a NULL-terminated argv vector. This is
deliberately simple - it does no quote processing of any kind.
[ Seems to me that this is something which is already being done in
the kernel, but I couldn't find any other implementations, either to
steal or replace. Keep an eye out. ]
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
One of idiomatic ways to duplicate a region of memory is
dst = kmalloc(len, GFP_KERNEL);
if (!dst)
return -ENOMEM;
memcpy(dst, src, len);
which is neat code except a programmer needs to write size twice. Which
sometimes leads to mistakes. If len passed to kmalloc is smaller that len
passed to memcpy, it's straight overwrite-beyond-end. If len passed to
memcpy is smaller than len passed to kmalloc, it's either a) legit
behaviour ;-), or b) cloned buffer will contain garbage in second half.
Slight trolling of commit lists shows several duplications bugs
done exactly because of diverged lenghts:
Linux:
[CRYPTO]: Fix memcpy/memset args.
[PATCH] memcpy/memset fixes
OpenBSD:
kerberosV/src/lib/asn1: der_copy.c:1.4
If programmer is given only one place to play with lengths, I believe, such
mistakes could be avoided.
With kmemdup, the snippet above will be rewritten as:
dst = kmemdup(src, len, GFP_KERNEL);
if (!dst)
return -ENOMEM;
This also leads to smaller code (kzalloc effect). Quick grep shows
200+ places where kmemdup() can be used.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Some string functions were safely overrideable in lib/string.c, but their
corresponding declarations in linux/string.h were not. Correct this, and
make strcspn overrideable.
Odds of someone wanting to do optimized assembly of these are small, but
for the sake of cleanliness, might as well bring them into line with the
rest of the file.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch series creates a strndup_user() function to easy copying C strings
from userspace. Also we avoid common pitfalls like userspace modifying the
final \0 after the strlen_user().
Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
- added typedef unsigned int __nocast gfp_t;
- replaced __nocast uses for gfp flags with gfp_t - it gives exactly
the same warnings as far as sparse is concerned, doesn't change
generated code (from gcc point of view we replaced unsigned int with
typedef) and documents what's going on far better.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch creates a new kstrdup library function and changes the "local"
implementations in several places to use this function.
Most of the changes come from the sound and net subsystems. The sound part
had already been acknowledged by Takashi Iwai and the net part by David S.
Miller.
I left UML alone for now because I would need more time to read the code
carefully before making changes there.
Signed-off-by: Paulo Marques <pmarques@grupopie.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
