Pull RAS updates from Ingo Molnar:
"The main changes in this cycle were:
- Assign notifier chain priorities for all RAS related handlers to
make the ordering explicit (Borislav Petkov)
- Improve the AMD MCA banks sysfs output (Yazen Ghannam)
- Various cleanups and restructuring of the x86 RAS code (Borislav
Petkov)"
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ras, EDAC, acpi: Assign MCE notifier handlers a priority
x86/ras: Get rid of mce_process_work()
EDAC/mce/amd: Dump TSC value
EDAC/mce/amd: Unexport amd_decode_mce()
x86/ras/amd/inj: Change dependency
x86/ras: Flip the TSC-adding logic
x86/ras/amd: Make sysfs names of banks more user-friendly
x86/ras/therm_throt: Do not log a fake MCE for thermal events
x86/ras/inject: Make it depend on X86_LOCAL_APIC=y
Pull perf updates from Ingo Molnar:
"On the kernel side the main changes in this cycle were:
- Add Intel Kaby Lake CPU support (Srinivas Pandruvada)
- AMD uncore driver updates for fam17 (Janakarajan Natarajan)
- Intel/PT updates and core events optimizations and cleanups
(Alexander Shishkin)
- cgroups events fixes (David Carrillo-Cisneros)
- kprobes improvements (Masami Hiramatsu)
- ... plus misc fixes and updates.
On the tooling side the main changes were:
- Support clang build in tools/{perf,lib/{bpf,traceevent,api}} with
CC=clang, to, for instance, take advantage of better warnings
(Arnaldo Carvalho de Melo):
- Introduce the 'delta-abs' 'perf diff' compute method, that orders
the histogram entries by the absolute value of the percentage delta
for a function in two perf.data files, i.e. the functions that
changed the most (increase or decrease in samples) comes first
(Namhyung Kim)
- Add support for parsing Intel uncore vendor event files and add
uncore vendor events for the Intel server processors (Haswell,
Broadwell, IvyBridge), Xeon Phi (Knights Landing) and Broadwell DE
(Andi Kleen)
- Introduce 'perf ftrace' a perf front end to the kernel's ftrace
function and function_graph tracer, defaulting to the
"function_graph" tracer, more work will be done in reviving this
effort, forward porting it from its initial patch submission
(Namhyung Kim)
- Add 'e' and 'c' hotkeys to expand/collapse call chains for a single
hist entry in the 'perf report' and 'perf top' TUI (Jiri Olsa)
- Account thread wait time (off CPU time) separately: sleep, iowait
and preempt, based on the prev_state of the last event, show the
breakdown when using "perf sched timehist --state" (Namhyumg Kim)
- Add more triggers to switch the output file (perf.data.TIMESTAMP).
Now, in addition to switching to a different output file when
receiving a SIGUSR2, one can also specify file size and time based
triggers:
perf record -a --switch-output=signal
is equivalent to what we had before:
perf record -a --switch-output
While we can also ask for the file to be "sliced" by size, taking
into account that that will happen only when we get woken up by the
kernel, i.e. one has to take into account the --mmap-pages (the
size of the perf mmap ring buffer):
perf record -a --switch-output=2G
will break the perf.data output into multiple files limited to 2GB
of samples, right when generating the output.
For time based samples, alert() will be used, so to have 1 minute
limited perf.data output files:
perf record -a --switch-output=1m
(Jiri Olsa)
- Improve 'perf trace' (Arnaldo Carvalho de Melo)
- 'perf kallsyms' toy tool to look for extended symbol information on
the running kernel and demonstrate the machine/thread/symbol APIs
for use in other tools, such as 'perf probe' (Arnaldo Carvalho de
Melo)
- ... plus tons of other changes, see the shortlog and Git log for
details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (131 commits)
perf tools: Add missing parse_events_error() prototype
perf pmu: Fix check for unset alias->unit array
perf tools: Be consistent on the type of map->symbols[] interator
perf intel pt decoder: clang has no -Wno-override-init
perf evsel: Do not put a variable sized type not at the end of a struct
perf probe: Avoid accessing uninitialized 'map' variable
perf tools: Do not put a variable sized type not at the end of a struct
perf record: Do not put a variable sized type not at the end of a struct
perf tests: Synthesize struct instead of using field after variable sized type
perf bench numa: Make sure dprintf() is not defined
Revert "perf bench futex: Sanitize numeric parameters"
tools lib subcmd: Make it an error to pass a signed value to OPTION_UINTEGER
tools: Set the maximum optimization level according to the compiler being used
tools: Suppress request for warning options not existent in clang
samples/bpf: Reset global variables
samples/bpf: Ignore already processed ELF sections
samples/bpf: Add missing header
perf symbols: dso->name is an array, no need to check it against NULL
perf tests record: No need to test an array against NULL
perf symbols: No need to check if sym->name is NULL
...
Pull EFI updates from Ingo Molnar:
"The main changes in this cycle were:
- Changes to the EFI init code to establish whether secure boot
authentication was performed at boot time. (Josh Boyer, David
Howells)
- Wire up the UEFI memory attributes table for x86. This eliminates
any runtime memory regions that are both writable and executable,
on recent firmware versions. (Sai Praneeth)
- Move the BGRT init code to an earlier stage so that we can still
use efi_mem_reserve(). (Dave Young)
- Preserve debug symbols in the ARM/arm64 UEFI stub (Ard Biesheuvel)
- Code deduplication work and various other cleanups (Lukas Wunner)
- ... plus various other fixes and cleanups"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/libstub: Make file I/O chunking x86-specific
efi: Print the secure boot status in x86 setup_arch()
efi: Disable secure boot if shim is in insecure mode
efi: Get and store the secure boot status
efi: Add SHIM and image security database GUID definitions
arm/efi: Allow invocation of arbitrary runtime services
x86/efi: Allow invocation of arbitrary runtime services
efi/libstub: Preserve .debug sections after absolute relocation check
efi/x86: Add debug code to print cooked memmap
efi/x86: Move the EFI BGRT init code to early init code
efi: Use typed function pointers for the runtime services table
efi/esrt: Fix typo in pr_err() message
x86/efi: Add support for EFI_MEMORY_ATTRIBUTES_TABLE
efi: Introduce the EFI_MEM_ATTR bit and set it from the memory attributes table
efi: Make EFI_MEMORY_ATTRIBUTES_TABLE initialization common across all architectures
x86/efi: Deduplicate efi_char16_printk()
efi: Deduplicate efi_file_size() / _read() / _close()
Pull RCU updates from Ingo Molnar:
"The RCU changes in this cycle are:
- Dynticks updates, consolidating open-coded counter accesses into a
well-defined API
- SRCU updates: Simplify algorithm, add formal verification
- Documentation updates
- Miscellaneous fixes
- Torture-test updates
Most of the diffstat comes from the relatively large documentation
update"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
srcu: Reduce probability of SRCU ->unlock_count[] counter overflow
rcutorture: Add CBMC-based formal verification for SRCU
srcu: Force full grace-period ordering
srcu: Implement more-efficient reader counts
rcu: Adjust FQS offline checks for exact online-CPU detection
rcu: Check cond_resched_rcu_qs() state less often to reduce GP overhead
rcu: Abstract extended quiescent state determination
rcu: Abstract dynticks extended quiescent state enter/exit operations
rcu: Add lockdep checks to synchronous expedited primitives
rcu: Eliminate unused expedited_normal counter
llist: Clarify comments about when locking is needed
rcu: Fix comment in rcu_organize_nocb_kthreads()
rcu: Enable RCU tracepoints by default to aid in debugging
rcu: Make rcu_cpu_starting() use its "cpu" argument
rcu: Add comment headers to expedited-grace-period counter functions
rcu: Don't wake rcuc/X kthreads on NOCB CPUs
rcu: Re-enable TASKS_RCU for User Mode Linux
rcu: Once again use NMI-based stack traces in stall warnings
rcu: Remove short-term CPU kicking
rcu: Add long-term CPU kicking
...
Pull debugobjects updates from Ingo Molnar:
"A number of scalability improvements by Waimang Long"
* 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
debugobjects: Improve variable naming
debugobjects: Reduce contention on the global pool_lock
debugobjects: Scale thresholds with # of CPUs
debugobjects: Track number of kmem_cache_alloc/kmem_cache_free done
Pull irq updates from Thomas Gleixner:
"This update provides:
- Yet another two irq controller chip drivers
- A few updates and fixes for GICV3
- A resource managed function for interrupt allocation
- Fixes, updates and enhancements all over the place"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/qcom: Fix error handling
genirq: Clarify logic calculating bogus irqreturn_t values
genirq/msi: Add stubs for get_cached_msi_msg/pci_write_msi_msg
genirq/devres: Use dev_name(dev) as default for devname
genirq: Fix /proc/interrupts output alignment
irqdesc: Add a resource managed version of irq_alloc_descs()
irqchip/gic-v3-its: Zero command on allocation
irqchip/gic-v3-its: Fix command buffer allocation
irqchip/mips-gic: Fix local interrupts
irqchip: Add a driver for Cortina Gemini
irqchip: DT bindings for Cortina Gemini irqchip
irqchip/gic-v3: Remove duplicate definition of GICD_TYPER_LPIS
irqchip/gic-v3-its: Rename MAPVI to MAPTI
irqchip/gic-v3-its: Drop deprecated GITS_BASER_TYPE_CPU
irqchip/gic-v3-its: Refactor command encoding
irqchip/gic-v3-its: Enable cacheable attribute Read-allocate hints
irqchip/qcom: Add IRQ combiner driver
ACPI: Add support for ResourceSource/IRQ domain mapping
ACPI: Generic GSI: Do not attempt to map non-GSI IRQs during bus scan
irq/platform-msi: Fix comment about maximal MSIs
Pull timer updates from Thomas Gleixner:
"Nothing exciting, just the usual pile of fixes, updates and cleanups:
- A bunch of clocksource driver updates
- Removal of CONFIG_TIMER_STATS and the related /proc file
- More posix timer slim down work
- A scalability enhancement in the tick broadcast code
- Math cleanups"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
hrtimer: Catch invalid clockids again
math64, tile: Fix build failure
clocksource/drivers/arm_arch_timer:: Mark cyclecounter __ro_after_init
timerfd: Protect the might cancel mechanism proper
timer_list: Remove useless cast when printing
time: Remove CONFIG_TIMER_STATS
clocksource/drivers/arm_arch_timer: Work around Hisilicon erratum 161010101
clocksource/drivers/arm_arch_timer: Introduce generic errata handling infrastructure
clocksource/drivers/arm_arch_timer: Remove fsl-a008585 parameter
clocksource/drivers/arm_arch_timer: Add dt binding for hisilicon-161010101 erratum
clocksource/drivers/ostm: Add renesas-ostm timer driver
clocksource/drivers/ostm: Document renesas-ostm timer DT bindings
clocksource/drivers/tcb_clksrc: Use 32 bit tcb as sched_clock
clocksource/drivers/gemini: Add driver for the Cortina Gemini
clocksource: add DT bindings for Cortina Gemini
clockevents: Add a clkevt-of mechanism like clksrc-of
tick/broadcast: Reduce lock cacheline contention
timers: Omit POSIX timer stuff from task_struct when disabled
x86/timer: Make delay() work during early bootup
delay: Add explanation of udelay() inaccuracy
...
* Expose per-DIMM error counts in sysfs (Aaron Miller)
* Add T2080 l2-cache support to mpc85xx (Chris Packham)
* Random other small improvements/cleanups/fixlets
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Merge tag 'edac_for_4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
- Make amd64_edac still load on a machine with unpopulated nodes +
cleanups (Yazen Ghannam)
- Expose per-DIMM error counts in sysfs (Aaron Miller)
- Add T2080 l2-cache support to mpc85xx (Chris Packham)
- Random other small improvements/cleanups/fixlets
* tag 'edac_for_4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, mce_amd: Print IPID and Syndrome on a separate line
EDAC, amd64: Bump driver version
MAINTAINERS, EDAC: Update email for Thor Thayer
EDAC, fsl_ddr: Make locally used symbols static
EDAC, mpc85xx: Add T2080 l2-cache support
EDAC, amd64: Add x86cpuid sanity check during init
EDAC, amd64: Don't treat ECC disabled as failure
EDAC: Add routine to check if MC devices list is empty
EDAC, amd64: Remove unused printing macros
EDAC, amd64: Rework messages in ecc_enabled()
EDAC, amd64: Move global code out of instance functions
EDAC, amd64: Free unused memory when init_one_instance() fails
EDAC, mce_amd: Give more context to deferred error message
EDAC, i7300: Test for the second channel properly
EDAC, sb_edac: Get rid of ->show_interleave_mode()
EDAC: Expose per-DIMM error counts in sysfs
EDAC, amd64: Save and return err code from probe_one_instance()
EDAC, i82975x: Add ioremap_nocache() error handling
EDAC: Fix typos in enum mem_type comments
EDAC: Make dev_attr_sdram_scrub_rate static
- new driver for stts751
- it87: Added support for IT8622E and IT8792E; improved support for other chips
- lm70: Added support for TMP122/124
- use permission-specific DEVICE_ATTR variants where possible
- fixed overflows in various drivers
- minor improvements in various drivers
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Merge tag 'hwmon-for-linus-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
- new driver for stts751
- it87: Added support for IT8622E and IT8792E; improved support for
other chips
- lm70: Added support for TMP122/124
- use permission-specific DEVICE_ATTR variants where possible
- fixed overflows in various drivers
- minor improvements in various drivers
* tag 'hwmon-for-linus-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (95 commits)
hwmon: (sht15) Add device tree support
devicetree: add lm90 thermal_zone sensor support
hwmon: (it87) Add support for IT8792E
hwmon: (it87) Do not overwrite bit 2..6 of pwm control registers
hwmon: (it87) Fix pwm4 detection for IT8620 and IT8628
hwmon: (it87) Ensure that pwm control cache is current before updating values
hwmon: (it87) Improve IT8622 support
hwmon: (it87) Add support for IT8622E
hwmon: (it87) Add feature flag indicating that VIN3 is connected to 5V
DT: add binding documentation for STTS751
hwmon: new driver for ST stts751 thermal sensor
hwmon: Register thermal zone only if 'dev' parameter was provided
hwmon: Relax name attribute validation for new APIs
hwmon: Update documentation to clarify rules for the 'name' attribute
hwmon: Make name attribute mandatory for new APIs
hwmon: (lm70) Add support for TI TMP122/124
hwmon: (lm70) Utilize dev_warn instead of pr_warn
hwmon: (ltc4151) Export OF device ID table as module aliases
hwmon: (adc128d818) Preserve operation mode
hwmon: (adc128d818) Support operation modes 1-3
...
General:
- new kernel API for retrieving max bad blocks per die (not used yet)
- track (and expose via sysfs) a partition's device tree node
- support a "label" device tree property for naming an MTD
NAND:
- sunxi: avoid busy-waiting for NAND events
- ifc: fix ECC handling on IFC v1.0
- OX820: add explicit dependency on ARCH_OXNAS in Kconfig
- core: add a new manufacture ID and fix a kernel-doc warning
- fsmc: kill pdata support
- lpc32xx_slc: remove unneeded NULL check
- support dynamic "max bad blocks" detection via ONFI
SPI NOR:
- add support for the 4-byte address instruction set
- add support for new memory parts
- add support to S3AN memories
- add support to the Intel SPI controller
- add support to the Aspeed AST2400 and AST2550 controllers
- support max SPI message sizes in m25p80_read()
- fixes for the Candence and Freescale QSPI drivers
Other:
- add support for Gemini flash probing
- bcm47xxsflash: add support for reading outside memory-mapped window
- bcm47xxparts: extend to support multiple TRX partitions
- misc fixes and typos
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Merge tag 'for-linus-20170212' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"MTD updates for 4.11:
General:
- new kernel API for retrieving max bad blocks per die (not used yet)
- track (and expose via sysfs) a partition's device tree node
- support a "label" device tree property for naming an MTD
NAND:
- sunxi: avoid busy-waiting for NAND events
- ifc: fix ECC handling on IFC v1.0
- OX820: add explicit dependency on ARCH_OXNAS in Kconfig
- core: add a new manufacture ID and fix a kernel-doc warning
- fsmc: kill pdata support
- lpc32xx_slc: remove unneeded NULL check
- support dynamic "max bad blocks" detection via ONFI
SPI NOR:
- add support for the 4-byte address instruction set
- add support for new memory parts
- add support to S3AN memories
- add support to the Intel SPI controller
- add support to the Aspeed AST2400 and AST2550 controllers
- support max SPI message sizes in m25p80_read()
- fixes for the Candence and Freescale QSPI drivers
Other:
- add support for Gemini flash probing
- bcm47xxsflash: add support for reading outside memory-mapped window
- bcm47xxparts: extend to support multiple TRX partitions
- misc fixes and typos
Extra note: we've pulled in an MFD subtree from Lee Jones as a
dependency for a new Intel SPI NOR driver"
[ Kudos to Brian for sending pull request a week early:
"I refuse to acknowledge the existence of 4.10-rc8 and am therefore
sending our MTD changes for 4.11 now"
which is all good ]
* tag 'for-linus-20170212' of git://git.infradead.org/linux-mtd: (52 commits)
mtd: aspeed: remove redundant dev_err call in aspeed_smc_probe()
dt-bindings: mtd: add a common label property to all mtd devices
mtd: name the mtd device with an optional label property
mtd: physmap_of: fixup gemini/versatile dependencies
mtd: spi-nor: cqspi: remove redundant dead code on error return check
Documentation: mtk-quadspi: update DT bindings
mtd: fsl-quadspi: Rename SEQID_QUAD_READ to SEQID_READ
mtd:fsl-quadspi:use the property fields of SPI-NOR
mtd: spi-nor: Add support for gd25q16
mtd: spi-nor: Fix S3AN addressing calculation
mtd: aspeed: fix compile warning in aspeed_smc_read_from_ahb()
mtd: spi-nor: add dt support for Everspin MRAMs
mtd: spi-nor: Add lock/unlock support for f25l32pa
mtd: spi-nor: add a stateless method to support memory size above 128Mib
mtd: spi-nor: rename SPINOR_OP_* macros of the 4-byte address op codes
mtd: m25p80: consider max message size in m25p80_read
mtd: spi-nor: bindings for the Aspeed memory controllers
mtd: aspeed: add memory controllers for the Aspeed AST2400 SoC
mtd: spi-nor: add memory controllers for the Aspeed AST2500 SoC
mtd: spi-nor: remove WARN_ONCE() message in spi_nor_write()
...
What happens is that a write to /dev/sg is given a request with non-zero
->iovec_count combined with zero ->dxfer_len. Or with ->dxferp pointing
to an array full of empty iovecs.
Having write permission to /dev/sg shouldn't be equivalent to the
ability to trigger BUG_ON() while holding spinlocks...
Found by Dmitry Vyukov and syzkaller.
[ The BUG_ON() got changed to a WARN_ON_ONCE(), but this fixes the
underlying issue. - Linus ]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Don't crash the machine just because of an empty transfer. Use WARN_ON()
combined with returning an error.
Found by Dmitry Vyukov and syzkaller.
[ Changed to "WARN_ON_ONCE()". Al has a patch that should fix the root
cause, but a BUG_ON() is not acceptable in any case, and a WARN_ON()
might still be a cause of excessive log spamming.
NOTE! If this warning ever triggers, we may end up leaking resources,
since this doesn't bother to try to clean the command up. So this
WARN_ON_ONCE() triggering does imply real problems. But BUG_ON() is
much worse.
People really need to stop using BUG_ON() for "this shouldn't ever
happen". It makes pretty much any bug worse. - Linus ]
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: James Bottomley <jejb@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If ip6_dst_lookup_tail has acquired a dst and fails the IPv4-mapped
check, release the dst before returning an error.
Fixes: ec5e3b0a1d ("ipv6: Inhibit IPv4-mapped src address on the wire.")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Two more bugfixes that came in during this week:
- one defconfig change to enable a vital driver used on some Qualcomm
based phones. This was already queued for 4.11, but the maintainer
asked to have it in 4.10 after all.
- One regression fix for the reset controller framework, this got
broken by a typo in the 4.10 merge window.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Two more bugfixes that came in during this week:
- a defconfig change to enable a vital driver used on some Qualcomm
based phones. This was already queued for 4.11, but the maintainer
asked to have it in 4.10 after all.
- a regression fix for the reset controller framework, this got
broken by a typo in the 4.10 merge window"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: multi_v7_defconfig: enable Qualcomm RPMCC
reset: fix shared reset triggered_count decrement on error
Pull ARM fixes from Russell King:
"A couple of fixes from Kees concerning problems he spotted with our
user access support"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8658/1: uaccess: fix zeroing of 64-bit get_user()
ARM: 8657/1: uaccess: consistently check object sizes
Pull x86 fix from Thomas Gleixner:
"Make the build clean by working around yet another GCC stupidity"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vm86: Fix unused variable warning if THP is disabled
Pull locking fix from Thomas Gleixner:
"Move the futex init function to core initcall so user mode helper does
not run into an uninitialized futex syscall"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Move futex_init() to core_initcall
Pull timer fixes from Thomas Gleixner:
"Two small fixes::
- Prevent deadlock on the tick broadcast lock. Found and fixed by
Mike.
- Stop using printk() in the timekeeping debug code to prevent a
deadlock against the scheduler"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping: Use deferred printk() in debug code
tick/broadcast: Prevent deadlock on tick_broadcast_lock
Pull networking fixes from David Miller:
1) Fix leak in dpaa_eth error paths, from Dan Carpenter.
2) Use after free when using IPV6_RECVPKTINFO, from Andrey Konovalov.
3) fanout_release() cannot be invoked from atomic contexts, from Anoob
Soman.
4) Fix bogus attempt at lockdep annotation in IRDA.
5) dev_fill_metadata_dst() can OOP on a NULL dst cache pointer, from
Paolo Abeni.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
irda: Fix lockdep annotations in hashbin_delete().
vxlan: fix oops in dev_fill_metadata_dst
dccp: fix freeing skb too early for IPV6_RECVPKTINFO
dpaa_eth: small leak on error
packet: Do not call fanout_release from atomic contexts
Use rcuidle console tracepoint because, apparently, it may be issued
from an idle CPU:
hw-breakpoint: Failed to enable monitor mode on CPU 0.
hw-breakpoint: CPU 0 failed to disable vector catch
===============================
[ ERR: suspicious RCU usage. ]
4.10.0-rc8-next-20170215+ #119 Not tainted
-------------------------------
./include/trace/events/printk.h:32 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
RCU used illegally from idle CPU!
rcu_scheduler_active = 2, debug_locks = 0
RCU used illegally from extended quiescent state!
2 locks held by swapper/0/0:
#0: (cpu_pm_notifier_lock){......}, at: [<c0237e2c>] cpu_pm_exit+0x10/0x54
#1: (console_lock){+.+.+.}, at: [<c01ab350>] vprintk_emit+0x264/0x474
stack backtrace:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-rc8-next-20170215+ #119
Hardware name: Generic OMAP4 (Flattened Device Tree)
console_unlock
vprintk_emit
vprintk_default
printk
reset_ctrl_regs
dbg_cpu_pm_notify
notifier_call_chain
cpu_pm_exit
omap_enter_idle_coupled
cpuidle_enter_state
cpuidle_enter_state_coupled
do_idle
cpu_startup_entry
start_kernel
This RCU warning, however, is suppressed by lockdep_off() in printk().
lockdep_off() increments the ->lockdep_recursion counter and thus
disables RCU_LOCKDEP_WARN() and debug_lockdep_rcu_enabled(), which want
lockdep to be enabled "current->lockdep_recursion == 0".
Link: http://lkml.kernel.org/r/20170217015932.11898-1-sergey.senozhatsky@gmail.com
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <rmk@armlinux.org.uk>
Cc: <stable@vger.kernel.org> [3.4+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch enables the Qualcomm RPM based Clock Controller present on
A-family boards.
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
commit 82e88ff1ea ("hrtimer: Revert CLOCK_MONOTONIC_RAW support") removed
unfortunately a sanity check in the hrtimer code which was part of that
MONOTONIC_RAW patch series.
It would have caught the bogus usage of CLOCK_MONOTONIC_RAW in the wireless
code. So bring it back.
It is way too easy to take any random clockid and feed it to the hrtimer
subsystem. At best, it gets mapped to a monotonic base, but it would be
better to just catch illegal values as early as possible.
Detect invalid clockids, map them to CLOCK_MONOTONIC and emit a warning.
[ tglx: Replaced the BUG by a WARN and gracefully map to CLOCK_MONOTONIC ]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Tomasz Nowicki <tn@semihalf.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Link: http://lkml.kernel.org/r/1452879670-16133-3-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
A nested lock depth was added to the hasbin_delete() code but it
doesn't actually work some well and results in tons of lockdep splats.
Fix the code instead to properly drop the lock around the operation
and just keep peeking the head of the hashbin queue.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull block layer fix from Jens Axboe:
"A single fix for a lockdep splat reported by Thomas and Gabriel"
* 'for-linus' of git://git.kernel.dk/linux-block:
cfq-iosched: don't call wbt_disable_default() with IRQs disabled
Since the commit 0c1d70af92 ("net: use dst_cache for vxlan device")
vxlan_fill_metadata_dst() calls vxlan_get_route() passing a NULL
dst_cache pointer, so the latter should explicitly check for
valid dst_cache ptr. Unfortunately the commit d71785ffc7 ("net: add
dst_cache to ovs vxlan lwtunnel") removed said check.
As a result is possible to trigger a null pointer access calling
vxlan_fill_metadata_dst(), e.g. with:
ovs-vsctl add-br ovs-br0
ovs-vsctl add-port ovs-br0 vxlan0 -- set interface vxlan0 \
type=vxlan options:remote_ip=192.168.1.1 \
options:key=1234 options:dst_port=4789 ofport_request=10
ip address add dev ovs-br0 172.16.1.2/24
ovs-vsctl set Bridge ovs-br0 ipfix=@i -- --id=@i create IPFIX \
targets=\"172.16.1.1:1234\" sampling=1
iperf -c 172.16.1.1 -u -l 1000 -b 10M -t 1 -p 1234
This commit addresses the issue passing to vxlan_get_route() the
dst_cache already available into the lwt info processed by
vxlan_fill_metadata_dst().
Fixes: d71785ffc7 ("net: add dst_cache to ovs vxlan lwtunnel")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the current DCCP implementation an skb for a DCCP_PKT_REQUEST packet
is forcibly freed via __kfree_skb in dccp_rcv_state_process if
dccp_v6_conn_request successfully returns.
However, if IPV6_RECVPKTINFO is set on a socket, the address of the skb
is saved to ireq->pktopts and the ref count for skb is incremented in
dccp_v6_conn_request, so skb is still in use. Nevertheless, it gets freed
in dccp_rcv_state_process.
Fix by calling consume_skb instead of doing goto discard and therefore
calling __kfree_skb.
Similar fixes for TCP:
fb7e2399ec [TCP]: skb is unexpectedly freed.
0aea76d35c tcp: SYN packets are now
simply consumed
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
One fix from Paul, we can not use the radix MMU under a hypervisor for now.
Although the current code checks if the processor supports radix, that is not
sufficient.
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Merge tag 'powerpc-4.10-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
"One fix from Paul: we can not use the radix MMU under a hypervisor for
now.
Although the code checked if the processor supports radix, that is not
sufficient"
* tag 'powerpc-4.10-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64: Disable use of radix under a hypervisor
Pull input fix from Dmitry Torokhov:
"Just a single change to Elan touchpad driver to recognize a new ACPI
ID"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - add ELAN0605 to the ACPI table
Pull i2c fix from Wolfram Sang:
"I2C has a revert to fix a regression"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
Revert "i2c: designware: detect when dynamic tar update is possible"
This should be >= instead of > here. It means that we don't increment
the free count enough so it becomes off by one.
Fixes: 9ad1a37493 ("dpaa_eth: add support for DPAA Ethernet")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Remove erroneous negation of the error check of the reset function
to decrement trigger_count in the error case, not on success. This
fixes shared resets to actually only trigger once, as intended.
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Merge tag 'reset-for-4.10-fixes' of https://git.pengutronix.de/git/pza/linux into fixes
Pull "Reset controller fixes for v4.10" from Philipp Zabel:
- Remove erroneous negation of the error check of the reset function
to decrement trigger_count in the error case, not on success. This
fixes shared resets to actually only trigger once, as intended.
* tag 'reset-for-4.10-fixes' of https://git.pengutronix.de/git/pza/linux:
reset: fix shared reset triggered_count decrement on error
For a shared reset, when the reset is successful, the triggered_count is
incremented when trying to call the reset callback, so that another device
sharing the same reset line won't trigger it again. If the reset has not
been triggered successfully, the trigger_count should be decremented.
The code does the opposite, and decrements the trigger_count on success.
As a consequence, another device sharing the reset will be able to trigger
it again.
Fixed be removing negation in from of the error code of the reset function.
Fixes: 7da33a37b4 ("reset: allow using reset_control_reset with shared reset")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
On Skylake hardware, the link_poll isn't clearing the pending interrupt
bit. Adding a new function for SKX that handles clearing of status bit the
right way.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Fixes: 783dfa6c ("ntb: Adding Skylake Xeon NTB support")
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Fix typo causing ntb_transport_create_queue to select the first
queue every time, instead of using the next free queue.
Signed-off-by: Thomas VanSelus <tvanselus@xes-inc.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Fixes: fce8a7bb5 ("PCI-Express Non-Transparent Bridge Support")
Signed-off-by: Jon Mason <jdmason@kudzu.us>
In the normal I/O execution path, ntb_perf is missing a call to
dmaengine_unmap_put() after submission. That causes us to leak
unmap objects.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Fixes: 8a7b6a77 ("ntb: ntb perf tool")
Signed-off-by: Jon Mason <jdmason@kudzu.us>
The call to debugfs_remove_recursive(qp->debugfs_dir) of the sub-level
directory must not be later than
debugfs_remove_recursive(nt_debugfs_dir) of the top-level directory.
Otherwise, the sub-level directory will not exist, and it would be
invalid (panic) to attempt to remove it. This removes the top-level
directory last, after sub-level directories have been cleaned up.
Signed-off-by: Allen Hubbe <Allen.Hubbe@dell.com>
Fixes: e26a5843f ("NTB: Split ntb_hw_intel and ntb_transport drivers")
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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Merge tag 'drm-fixes-for-v4.10-final' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Just two last minute fixes, one for DP MST oopses and one for a radeon
regression"
* tag 'drm-fixes-for-v4.10-final' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: Use mode h/vdisplay fields to hide out of bounds HW cursor
drm/dp/mst: fix kernel oops when turning off secondary monitor
One regression fix for interlaced modes on radeon
* 'drm-fixes-4.10' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: Use mode h/vdisplay fields to hide out of bounds HW cursor
This reverts commit 24b91e360e and commit
7bdb59f1ad ("tick/nohz: Fix possible missing clock reprog after tick
soft restart") that depends on it,
Pavel reports that it causes occasional boot hangs for him that seem to
depend on just how the machine was booted. In particular, his machine
hangs at around the PCI fixups of the EHCI USB host controller, but only
hangs from cold boot, not from a warm boot.
Thomas Gleixner suspecs it's a CPU hotplug interaction, particularly
since Pavel also saw suspend/resume issues that seem to be related.
We're reverting for now while trying to figure out the root cause.
Reported-bisected-and-tested-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org # reverted commits were marked for stable
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Changes to make tools/{perf,lib/{bpf,traceevent,api}} build with
CC=clang, to, for instance, take advantage of warnings (Arnaldo Carvalho de Melo):
- Conditionally request some warning options not available on clang
- Set the maximum optimization level to -O3 when using CC=clang, leave
the previous setting of -O6 otherwise.
- Make it an error to pass a signed value to OPTION_UINTEGER, so that
we can remove abs(unsigned int) calls in 'perf bench futex'.
- Make sure dprintf() is not defined before using that name in 'perf bench numa'
- Avoid using field after variable sized type, its a GNU extension, use
equivalent code.
- Fix some bugs where some variables could be used unitialized,
something not caught by gcc.
- Fix some spots where we were testing struct->array[] members against
NULL, it will always evaluate to 'true'.
- Add missing parse_events_error() prototype in the bison file.
There are still one problem when trying to build the python support, but
this are the 'size' outputs for 'make -C tools/perf NO_LIBPYTHON' for
gcc and clang builds:
DW_AT_producer: clang version 4.0.0 (http://llvm.org/git/clang.git f5be8ba13adc4ba1011a7ccd60c844bd60427c1c) (ht
$ size ~/bin/perf
text data bss dec hex filename
3447514 831320 23901696 28180530 1ae0032 /home/acme/bin/perf
DW_AT_producer: GNU C99 6.3.1 20161221 (Red Hat 6.3.1-1) -mtune=generic -march=x86-64 -ggdb3 -O6 -std=gnu99
+-fno-omit-frame-pointer -funwind-tables -fstack-protector-all
$ size ~/bin/perf
text data bss dec hex filename
3671662 836480 23902752 28410894 1b1840e /home/acme/bin/perf
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.11-20170215' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core clang fixes from Arnaldo Carvalho de Melo:
Changes to make tools/{perf,lib/{bpf,traceevent,api}} build with
CC=clang, to, for instance, take advantage of warnings (Arnaldo Carvalho de Melo):
- Conditionally request some warning options not available on clang
- Set the maximum optimization level to -O3 when using CC=clang, leave
the previous setting of -O6 otherwise.
- Make it an error to pass a signed value to OPTION_UINTEGER, so that
we can remove abs(unsigned int) calls in 'perf bench futex'.
- Make sure dprintf() is not defined before using that name in 'perf bench numa'
- Avoid using field after variable sized type, its a GNU extension, use
equivalent code.
- Fix some bugs where some variables could be used unitialized,
something not caught by gcc.
- Fix some spots where we were testing struct->array[] members against
NULL, it will always evaluate to 'true'.
- Add missing parse_events_error() prototype in the bison file.
There are still one problem when trying to build the python support, but
this are the 'size' outputs for 'make -C tools/perf NO_LIBPYTHON' for
gcc and clang builds:
DW_AT_producer: clang version 4.0.0 (http://llvm.org/git/clang.git f5be8ba13adc4ba1011a7ccd60c844bd60427c1c) (ht
$ size ~/bin/perf
text data bss dec hex filename
3447514 831320 23901696 28180530 1ae0032 /home/acme/bin/perf
DW_AT_producer: GNU C99 6.3.1 20161221 (Red Hat 6.3.1-1) -mtune=generic -march=x86-64 -ggdb3 -O6 -std=gnu99
+-fno-omit-frame-pointer -funwind-tables -fstack-protector-all
$ size ~/bin/perf
text data bss dec hex filename
3671662 836480 23902752 28410894 1b1840e /home/acme/bin/perf
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'media/v4.10-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fix from Mauro Carvalho Chehab:
"A regression fix that makes the Siano driver to work again after the
CONFIG_VMAP_STACK change"
* tag 'media/v4.10-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] siano: make it work again with CONFIG_VMAP_STACK
Flags (PIPE_BUF_FLAG_PACKET, PIPE_BUF_FLAG_GIFT) could remain on the
unused part of the pipe ring buffer. Previously splice_to_pipe() left
the flags value alone, which could result in incorrect behavior.
Uninitialized flags appears to have been there from the introduction of
the splice syscall.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org> # 2.6.17+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull fuse fixes from Miklos Szeredi:
"Fix a use after free bug introduced in 4.2 and using an uninitialized
value introduced in 4.9"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix uninitialized flags in pipe_buffer
fuse: fix use after free issue in fuse_dev_do_read()
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Merge tag 'pci-v4.10-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas:
"Add back pcie_pme_remove() so we free the IRQ when removing PCIe port
devices; previously the leaked IRQ caused an MSI BUG_ON"
* tag 'pci-v4.10-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/PME: Restore pcie_pme_driver.remove
