Pull perf fixes from Ingo Molnar:
"This tree contains various perf fixes on the kernel side, plus three
hw/event-enablement late additions:
- Intel Memory Bandwidth Monitoring events and handling
- the AMD Accumulated Power Mechanism reporting facility
- more IOMMU events
... and a final round of perf tooling updates/fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
perf llvm: Use strerror_r instead of the thread unsafe strerror one
perf llvm: Use realpath to canonicalize paths
perf tools: Unexport some methods unused outside strbuf.c
perf probe: No need to use formatting strbuf method
perf help: Use asprintf instead of adhoc equivalents
perf tools: Remove unused perf_pathdup, xstrdup functions
perf tools: Do not include stringify.h from the kernel sources
tools include: Copy linux/stringify.h from the kernel
tools lib traceevent: Remove redundant CPU output
perf tools: Remove needless 'extern' from function prototypes
perf tools: Simplify die() mechanism
perf tools: Remove unused DIE_IF macro
perf script: Remove lots of unused arguments
perf thread: Rename perf_event__preprocess_sample_addr to thread__resolve
perf machine: Rename perf_event__preprocess_sample to machine__resolve
perf tools: Add cpumode to struct perf_sample
perf tests: Forward the perf_sample in the dwarf unwind test
perf tools: Remove misplaced __maybe_unused
perf list: Fix documentation of :ppp
perf bench numa: Fix assertion for nodes bitfield
...
- prevent the boards from having glitches when inserting/removing SD card on
sama5d3/d4 Xplained. The regulators should be kept on.
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Merge tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/dt2
Merge "First fixes batch for AT91 on 4.6 - DT only fixes" from Nicolas Ferre:
- prevent the boards from having glitches when inserting/removing SD card on
sama5d3/d4 Xplained. The regulators should be kept on.
* tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: dts: at91: sama5d4 Xplained: don't disable hsmci regulator
ARM: dts: at91: sama5d3 Xplained: don't disable hsmci regulator
ARM: dts: at91: sama5d2 Xplained: add leds node
ARM: dts: at91: sama5d2 Xplained: add user push button
ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host
ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes
ARM: dts: at91: sama5d2: add dma properties to UART nodes
ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
The clock is really the device functional clock, not the interface
clock. Rename it.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Pull scheduler fixes from Ingo Molnar:
"Misc fixes: a cgroup fix, a fair-scheduler migration accounting fix, a
cputime fix and two cpuacct cleanups"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cpuacct: Simplify the cpuacct code
sched/cpuacct: Rename parameter in cpuusage_write() for readability
sched/fair: Add comments to explain select_idle_sibling()
sched/fair: Fix fairness issue on migration
sched/cgroup: Fix/cleanup cgroup teardown/init
sched/cputime: Fix steal time accounting vs. CPU hotplug
Pull locking fixes from Ingo Molnar:
"Documentation updates and a bitops ordering fix"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
bitops: Do not default to __clear_bit() for __clear_bit_unlock()
documentation: Clarify compiler store-fusion example
documentation: Transitivity is not cumulativity
documentation: Add alternative release-acquire outcome
documentation: Distinguish between local and global transitivity
documentation: Subsequent writes ordered by rcu_dereference()
documentation: Remove obsolete reference to RCU-protected indexes
documentation: Fix memory-barriers.txt section references
documentation: Fix control dependency and identical stores
Currently we disable preemption in copy_to_user_page; a behaviour that
we inherited from the 32-bit arm code. This was necessary for older
cores without broadcast data cache maintenance, and ensured that cache
lines were dirtied and cleaned by the same CPU. On these systems dirty
cache line migration was not possible, so this was sufficient to
guarantee coherency.
On contemporary systems, cache coherence protocols permit (dirty) cache
lines to migrate between CPUs as a result of speculation, prefetching,
and other behaviours. To account for this, in ARMv8 data cache
maintenance operations are broadcast and affect all data caches in the
domain associated with the VA (i.e. ISH for kernel and user mappings).
In __switch_to we ensure that tasks can be safely migrated in the middle
of a maintenance sequence, using a dsb(ish) to ensure prior explicit
memory accesses are observed and cache maintenance operations are
completed before a task can be run on another CPU.
Given the above, it is not necessary to disable preemption in
copy_to_user_page. This patch removes the preempt_{disable,enable}
calls, permitting preemption.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Commit 324420bf91 ("arm64: add support for ioremap() block
mappings") added new p?d_set_huge functions which do the hard work to
generate and set a correct block entry.
These differ from open-coded huge page creation in the early page table
code by explicitly setting the P?D_TYPE_SECT bits (which are implicitly
retained by mk_sect_prot() for any valid prot), but are otherwise
identical (and cannot fail on arm64).
For simplicity and consistency, make use of these in the initial page
table creation code.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The KASLR code incorrectly expects the contents of x18 to be preserved
across a call into C code, and uses it to stash the contents of SCTLR_EL1
before enabling the MMU. If the MMU needs to be disabled again to create
the randomized kernel mapping, x18 is written back to SCTLR_EL1, which is
likely to crash the system if x18 has been clobbered by kasan_early_init()
or kaslr_early_init(). So use x22 instead, which is not in use so far in
head.S
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Pull intel_idle patches for 4.6 from Len Brown.
* 'cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
intel_idle: Support for Intel Xeon Phi Processor x200 Product Family
intel_idle: prevent SKL-H boot failure when C8+C9+C10 enabled
User visible:
- Fix documentation of :ppp modifier in 'perf list' (Andi Kleen)
- Fix silly nodes bitfield bits/bytes length assertion in 'perf bench numa' (Jakub Jelen)
- Remove redundant CPU output in libtraceevent (Steven Rostedt)
- Remove 'core_id' check in topology 'perf test' (Sukadev Bhattiprolu)
Infrastructure:
- Record text offset in dso to calculate objdump address, to use with
modules in addition to vDSO symbol address calculations (Wang Nan)
- Move utilities.mak from perf to tools/scripts/ (Arnaldo Carvalho de Melo)
- Add cpumode to the perf_sample struct, this way we don't need to pass
the union event to the machine and thread resolving routines, shortening
function signatures and allowing the future introduction of a way
to use tracepoint events instead of the unavailable HW cycles counter on
powerpc guests in perf kvm by just hooking on perf_evsel__parse_sample,
at the end (Arnaldo Carvalho de Melo)
- Remove/unexport die() related infrastructure, that at some point will
finally be removed (Arnaldo Carvalho de Melo)
- Adopt linux/stringify.h from the kernel sources, not to touch this
kernel header from tools/ (Arnaldo Carvalho de Melo)
- Stop using strbuf for things we can instead trivially use libc's asprintf()
(Arnaldo Carvalho de Melo)
- Ditch tools/lib/util/abspath.c, its only exported function was used at just
one place and can be replaced by libc's realpath() (Arnaldo Carvalho de Melo)
- Use strerror_r() in the llvm infrastructure, tread safe, its what is used
elsewhere in tools/perf/ (Arnaldo Carvalho de Melo)
Cleanups:
- Removed misplaced or needless __maybe_unused/export (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-20160323' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/core improvements and fixes:
User visible fixes:
- Fix documentation of :ppp modifier in 'perf list' (Andi Kleen)
- Fix silly nodes bitfield bits/bytes length assertion in 'perf bench numa' (Jakub Jelen)
- Remove redundant CPU output in libtraceevent (Steven Rostedt)
- Remove 'core_id' check in topology 'perf test' (Sukadev Bhattiprolu)
Infrastructure changes/fixes:
- Record text offset in dso to calculate objdump address, to use with
modules in addition to vDSO symbol address calculations (Wang Nan)
- Move utilities.mak from perf to tools/scripts/ (Arnaldo Carvalho de Melo)
- Add cpumode to the perf_sample struct, this way we don't need to pass
the union event to the machine and thread resolving routines, shortening
function signatures and allowing the future introduction of a way
to use tracepoint events instead of the unavailable HW cycles counter on
powerpc guests in perf kvm by just hooking on perf_evsel__parse_sample,
at the end (Arnaldo Carvalho de Melo)
- Remove/unexport die() related infrastructure, that at some point will
finally be removed (Arnaldo Carvalho de Melo)
- Adopt linux/stringify.h from the kernel sources, not to touch this
kernel header from tools/ (Arnaldo Carvalho de Melo)
- Stop using strbuf for things we can instead trivially use libc's asprintf()
(Arnaldo Carvalho de Melo)
- Ditch tools/lib/util/abspath.c, its only exported function was used at just
one place and can be replaced by libc's realpath() (Arnaldo Carvalho de Melo)
- Use strerror_r() in the llvm infrastructure, tread safe, its what is used
elsewhere in tools/perf/ (Arnaldo Carvalho de Melo)
Cleanups:
- Removed misplaced or needless __maybe_unused/export (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull networking bugfixes from David Miller:
"Several bug fixes rolling in, some for changes introduced in this
merge window, and some for problems that have existed for some time:
1) Fix prepare_to_wait() handling in AF_VSOCK, from Claudio Imbrenda.
2) The new DST_CACHE should be a silent config option, from Dave
Jones.
3) inet_current_timestamp() unintentionally truncates timestamps to
16-bit, from Deepa Dinamani.
4) Missing reference to netns in ppp, from Guillaume Nault.
5) Free memory reference in hv_netvsc driver, from Haiyang Zhang.
6) Missing kernel doc documentation for function arguments in various
spots around the networking, from Luis de Bethencourt.
7) UDP stopped receiving broadcast packets properly, due to
overzealous multicast checks, fix from Paolo Abeni"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
net: ping: make ping_v6_sendmsg static
hv_netvsc: Fix the order of num_sc_offered decrement
net: Fix typos and whitespace.
hv_netvsc: Fix the array sizes to be max supported channels
hv_netvsc: Fix accessing freed memory in netvsc_change_mtu()
ppp: take reference on channels netns
net: Reset encap_level to avoid resetting features on inner IP headers
net: mediatek: fix checking for NULL instead of IS_ERR() in .probe
net: phy: at803x: Request 'reset' GPIO only for AT8030 PHY
at803x: fix reset handling
AF_VSOCK: Shrink the area influenced by prepare_to_wait
Revert "vsock: Fix blocking ops call in prepare_to_wait"
macb: fix PHY reset
ipv4: initialize flowi4_flags before calling fib_lookup()
fsl/fman: Workaround for Errata A-007273
ipv4: fix broadcast packets reception
net: hns: bug fix about the overflow of mss
net: hns: adds limitation for debug port mtu
net: hns: fix the bug about mtu setting
net: hns: fixes a bug of RSS
...
As ping_v6_sendmsg is used only in this file,
making it static
The body of "pingv6_prot" and "pingv6_protosw" were
moved at the middle of the file, to avoid having to
declare some static prototypes.
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reorder the code in netvsc_sc_open(), so num_sc_offered is only decremented
after vmbus_open() is called. This avoid pontential race of removing device
before all channels are setup.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Significant refactoring of Dell laptop drivers, modularizing the smbios code.
Multiple new platforms added for ideapad, asus, dell, and alienware using
existing quirks. A few fixes and cleanups.
hp-wmi:
- Remove GPS rfkill support via pre-2009 interface
- fix unregister order in hp_wmi_rfkill_setup() once again
ideapad-laptop:
- Add ideapad Y700 (15) to the no_hw_rfkill DMI list
fujitsu-laptop:
- Support radio toggle button
intel-hid:
- allocate correct amount of memory for private struct
platform/x86:
- Make intel_scu_ipc explicitly non-modular
intel_pmc_ipc:
- Avoid pending IPC1 command during legacy suspend
- Fix GCR register base address and length
asus-nb-wmi:
- add wapf=4 quirk for ASUS X75VD
intel_telemetry_pltdrv:
- Change verbosity control bits
dell-rbtn:
- Add a comment about the XPS 13 9350
dell-wmi, dell-laptop:
- depends DMI
dell-wmi:
- support Dell Inspiron M5110
- properly process Dell Instant Launch hotkey
- enable receiving WMI events on Dell Vostro V131
- Support new hotkeys on the XPS 13 9350 (Skylake)
- Clean up hotkey table size check
- Stop storing pointers to DMI tables
dell-laptop:
- move dell_smi_error() to dell-smbios
- use dell_smbios_find_token() instead of find_token_location()
- use dell_smbios_find_token() instead of find_token_id()
- extract SMBIOS-related code to a separate module
dell-smbios:
- rename dell_smi_error() to dell_smbios_error()
- make da_tokens static
- remove find_token_{id,location}()
- implement new function for finding DMI table 0xDA tokens
- make the SMBIOS buffer static
- return the SMBIOS buffer from dell_smbios_get_buffer()
- don't return an SMBIOS buffer from dell_smbios_send_request()
- don't pass an SMBIOS buffer to dell_smbios_send_request()
- rename dell_send_request() to dell_smbios_send_request()
- rename release_buffer() to dell_smbios_release_buffer()
- rename clear_buffer() to dell_smbios_clear_buffer()
- rename get_buffer() to dell_smbios_get_buffer()
dell-led:
- use dell_smbios_send_request() for performing SMBIOS calls
- use dell_smbios_find_token() for finding mic DMI tokens
toshiba_acpi:
- Add a module parameter to disable hotkeys registration
- Add sysfs entries for the Cooling Method feature
- Add support for cooling method feature
Documentation/ABI:
- Update sysfs-driver-toshiba_acpi file
thinkpad_acpi:
- Remove ambiguous logging for "Unsupported brightness interface"
alienware-wmi:
- whitespace improvements
- Add support for two new systems: ASM200 and ASM201.
- Add support for deep sleep control.
- Add initial support for alienware graphics amplifier.
- Add support for new platform: X51-R3
- Clean up whitespace for ASM100 platform
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Merge tag 'platform-drivers-x86-v4.6-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
Pull x86 platform driver updates from Darren Hart:
"Significant refactoring of Dell laptop drivers, modularizing the
smbios code. Multiple new platforms added for ideapad, asus, dell,
and alienware using existing quirks. A few fixes and cleanups.
hp-wmi:
- Remove GPS rfkill support via pre-2009 interface
- fix unregister order in hp_wmi_rfkill_setup() once again
ideapad-laptop:
- Add ideapad Y700 (15) to the no_hw_rfkill DMI list
fujitsu-laptop:
- Support radio toggle button
intel-hid:
- allocate correct amount of memory for private struct
platform/x86:
- Make intel_scu_ipc explicitly non-modular
intel_pmc_ipc:
- Avoid pending IPC1 command during legacy suspend
- Fix GCR register base address and length
asus-nb-wmi:
- add wapf=4 quirk for ASUS X75VD
intel_telemetry_pltdrv:
- Change verbosity control bits
dell-rbtn:
- Add a comment about the XPS 13 9350
dell-wmi, dell-laptop:
- depends DMI
dell-wmi:
- support Dell Inspiron M5110
- properly process Dell Instant Launch hotkey
- enable receiving WMI events on Dell Vostro V131
- Support new hotkeys on the XPS 13 9350 (Skylake)
- Clean up hotkey table size check
- Stop storing pointers to DMI tables
dell-laptop:
- move dell_smi_error() to dell-smbios
- use dell_smbios_find_token() instead of find_token_location()
- use dell_smbios_find_token() instead of find_token_id()
- extract SMBIOS-related code to a separate module
dell-smbios:
- rename dell_smi_error() to dell_smbios_error()
- make da_tokens static
- remove find_token_{id,location}()
- implement new function for finding DMI table 0xDA tokens
- make the SMBIOS buffer static
- return the SMBIOS buffer from dell_smbios_get_buffer()
- don't return an SMBIOS buffer from dell_smbios_send_request()
- don't pass an SMBIOS buffer to dell_smbios_send_request()
- rename dell_send_request() to dell_smbios_send_request()
- rename release_buffer() to dell_smbios_release_buffer()
- rename clear_buffer() to dell_smbios_clear_buffer()
- rename get_buffer() to dell_smbios_get_buffer()
dell-led:
- use dell_smbios_send_request() for performing SMBIOS calls
- use dell_smbios_find_token() for finding mic DMI tokens
toshiba_acpi:
- Add a module parameter to disable hotkeys registration
- Add sysfs entries for the Cooling Method feature
- Add support for cooling method feature
Documentation/ABI:
- Update sysfs-driver-toshiba_acpi file
thinkpad_acpi:
- Remove ambiguous logging for "Unsupported brightness interface"
alienware-wmi:
- whitespace improvements
- Add support for two new systems: ASM200 and ASM201.
- Add support for deep sleep control.
- Add initial support for alienware graphics amplifier.
- Add support for new platform: X51-R3
- Clean up whitespace for ASM100 platform"
* tag 'platform-drivers-x86-v4.6-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (47 commits)
hp-wmi: Remove GPS rfkill support via pre-2009 interface
hp-wmi: fix unregister order in hp_wmi_rfkill_setup() once again
dell-wmi: support Dell Inspiron M5110
dell-wmi: properly process Dell Instant Launch hotkey
dell-wmi: enable receiving WMI events on Dell Vostro V131
dell-smbios: rename dell_smi_error() to dell_smbios_error()
dell-laptop: move dell_smi_error() to dell-smbios
ideapad-laptop: Add ideapad Y700 (15) to the no_hw_rfkill DMI list
fujitsu-laptop: Support radio toggle button
intel-hid: allocate correct amount of memory for private struct
platform/x86: Make intel_scu_ipc explicitly non-modular
intel_pmc_ipc: Avoid pending IPC1 command during legacy suspend
intel_pmc_ipc: Fix GCR register base address and length
asus-nb-wmi: add wapf=4 quirk for ASUS X75VD
intel_telemetry_pltdrv: Change verbosity control bits
dell-rbtn: Add a comment about the XPS 13 9350
dell-wmi: Support new hotkeys on the XPS 13 9350 (Skylake)
dell-wmi: Clean up hotkey table size check
dell-wmi, dell-laptop: depends DMI
dell-wmi: Stop storing pointers to DMI tables
...
No new drivers this time around, but a handful of cleanups and fixes.
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Merge tag 'pwm/for-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"No new drivers this time around, but a handful of cleanups and fixes"
* tag 'pwm/for-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: omap-dmtimer: Add debug message for effective period and duty cycle
pwm: omap-dmtimer: Round load and match values rather than truncate
pwm: omap-dmtimer: Add sanity checking for load and match values
pwm: omap-dmtimer: Fix inaccurate period and duty cycle calculations
pwm: brcmstb: Fix check of devm_ioremap_resource() return code
pwm: rcar: Depend on ARCH_RENESAS instead of ARCH_SHMOBILE
pwm: lpc18xx-sct: Test clock rate to avoid division by 0
pwm: img: Test clock rate to avoid division by 0
Pull more SCSI target updates from Nicholas Bellinger:
"This series contains cxgb4 driver prerequisites for supporting iscsi
segmentation offload (ISO), that will be utilized for a number of
future v4.7 developments in iscsi-target for supporting generic hw
offloads"
* 'for-next-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
cxgb4: update Kconfig and Makefile
cxgb4: add iSCSI DDP page pod manager
cxgb4, iw_cxgb4: move delayed ack macro definitions
cxgb4: move VLAN_NONE macro definition
cxgb4: update struct cxgb4_lld_info definition
cxgb4: add definitions for iSCSI target ULD
cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition
cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions
cxgb4, iw_cxgb4: move definitions to common header file
cxgb4: large receive offload support
cxgb4: allocate resources for CXGB4_ULD_ISCSIT
cxgb4: add new ULD type CXGB4_ULD_ISCSIT
Bunch of small fixupes all over. Plus a dma-buf patch that Sumit asked me
to cherry-pick since that's the only one he had in his tree.
There's a sparse issue outstanding in the color mgr stuff, but Lionel is
still working on something that actually appeases sparse.
* tag 'topic/drm-misc-2016-03-22' of git://anongit.freedesktop.org/drm-intel:
dma-buf/fence: fix fence_is_later v2
dma-buf: Update docs for SYNC ioctl
drm: remove excess description
dma-buf, drm, ion: Propagate error code from dma_buf_start_cpu_access()
drm/atmel-hlcdc: use helper to get crtc state
drm/atomic: use helper to get crtc state
This adds the necessary data for handling io voltage domains on the rk3399.
As interesting tidbit, the rk3399 contains two separate iodomain areas.
One in the regular General Register Files (GRF) and one in PMUGRF in the
pmu power domain.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-5njrq9dltckgm624omw9ljgu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To kill the last user of make_nonrelative_path(), that gets ditched,
one more panicking function killed.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-3hu56rvyh4q5gxogovb6ko8a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Some SKL-H configurations require "intel_idle.max_cstate=7" to boot.
While that is an effective workaround, it disables C10.
This patch detects the problematic configuration,
and disables C8 and C9, keeping C10 enabled.
Note that enabling SGX in BIOS SETUP can also prevent this issue,
if the system BIOS provides that option.
https://bugzilla.kernel.org/show_bug.cgi?id=109081
"Freezes with Intel i7 6700HQ (Skylake), unless intel_idle.max_cstate=7"
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: stable@vger.kernel.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-nq1wvtky4mpu0nupjyar7sbw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Use the result of a local read to determine when to set the eof flag. This
allows us to return the location of the end of the file atomically at the
time of the read.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
[bfields: add some documentation]
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
We have addch() for chars, add() for fixed size data, and addstr() for
variable length strings, use them.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-0ap02fn2xtvpduj2j6b2o1j4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
That doesn't chekcs malloc return and that, when using strbuf, if it
can't grow, just explodes away via die().
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-vr8qsjbwub7e892hpa9msz95@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fix typos. Capitalize CPU, NAPI, RCU consistently. Align structure
indentation. No functional change intended; only comment and whitespace
changes.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The VRSS_CHANNEL_MAX is the max number of channels supported by Hyper-V
hosts. We use it for the related array sizes instead of using NR_CPUS,
which may be set to several thousands.
This patch reduces possible memory allocation failures.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
struct netvsc_device is freed in rndis_filter_device_remove(). So we save
the nvdev->num_chn into a temp variable for later usage.
(Please also include this patch into stable branch.)
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-s87zi5d03m6rz622y1z6rlsa@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Use instead the copy just made to tools/include/linux/.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-q736w12nwy98x5ox2hamp5ow@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This patch corrects an oversight in which we were allowing the encap_level
value to pass from the outer headers to the inner headers. As a result we
were incorrectly identifying UDP or GRE tunnels as also making use of ipip
or sit when the second header actually represented a tunnel encapsulated in
either a UDP or GRE tunnel which already had the features masked.
Fixes: 7644345622 ("net: Move GSO csum into SKB_GSO_CB")
Reported-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Acked-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is code in tools/ that is directly including this file from the
kernel, and this is verboten for a while, copy it so that the next csets
can fix this situation.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-e0r3nks2uai020ndghvxv5qw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit a674533078 ("tools lib traceevent: Split pevent_print_event()
into specific functionality functions") broke apart the function
pevent_print_event() into three functions.
The first function prints the comm, pid and CPU, the second prints the
timestamp.
But that commit added the printing of the CPU in the timestamp function,
which now causes pevent_print_event() to duplicate the CPU output.
Remove the redundant printing of the record's CPU from the timestamp
function.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Fixes: a674533078 ("tools lib traceevent: Split pevent_print_event() into specific functionality functions")
Link: http://lkml.kernel.org/r/20160323101628.459375d2@gandalf.local.home
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-w246stf7ponfamclsai6b9zo@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
devm_ioremap_resource() returns ERR_PTR() value on error, it never
returns NULL, fix it and propagate the returned error upwards.
Fixes: 656e705243 ("net-next: mediatek: add support for MT7623 ethernet")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: John Crispin <blogic@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This removes the dependency on GPIOLIB for non faulty PHYs.
Indeed, without this patch, if GPIOLIB is not selected
devm_gpiod_get_optional() will return -ENOSYS and the driver probe
call will fail, regardless of the actual PHY hardware.
Out of the 3 PHYs supported by this driver (AT8030, AT8031, AT8035),
only AT8030 presents the issues that commit 13a56b4493 ("net: phy:
at803x: Add support for hardware reset") attempts to work-around by
using a 'reset' GPIO line.
Hence, only AT8030 should depend on GPIOLIB operating properly.
Fixes: 13a56b4493 ("net: phy: at803x: Add support for hardware reset")
Signed-off-by: Sebastian Frias <sf84@laposte.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver of course "knows" that the chip's reset signal is active low,
so it drives the GPIO to 0 to reset the PHY and to 1 otherwise; however
all this will only work iff the GPIO is specified as active-high in the
device tree! I think both the driver and the device trees (if there are
any -- I was unable to find them) need to be fixed in this case...
Fixes: 13a56b4493 ("net: phy: at803x: Add support for hardware reset")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
GPS rfkill support via pre-2009 WMI interface uses hp_wmi_get_sw_state()
and hp_wmi_get_hw_state() to query its current hard and soft block state,
respectively.
In hp_wmi_get_sw_state() a mask is calculated which bit should be checked
in an int value returned by firmware to get current block state: 0x200 <<
(r * 8) which with r being 3 for GPS results in overflow and mask of zero.
The same goes for hp_wmi_get_hw_state().
This effectively means that GPS rfkill on this WMI interface is considered
always both hard and soft blocked.
Unfortunately, later when rfkill subsystem calls hp_wmi_set_block() to sync
this block to hardware firmware at least on my old nc6400 gets confused and
sets both hard and soft blocks on WiFi and BT.
This happens for example on hp-wmi module load.
Since due to overflow described above it is dubious that this ever worked
correctly and HP laptops with modems having GPS support seem to all have
been released well past year 2009 let's just remove GPS rfkill support via
pre-2009 WMI interface.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
rfkill registration order in hp_wmi_rfkill_setup() is:
1) WiFi,
2) BT,
3) WWAN,
5) GPS.
Unregistration when cleaning up on error return should happen in reverse
order.
This means that: If BT rfkill fails to be allocated we possibly need to
first unregister WiFi rfkill before destroying it.
The same goes with (WWAN, BT) and (GPS, WWAN) pairs.
Also, if WWAN rfkill fails to register we need to (possibly) unregister BT
not the GPS one. And if GPS rfkill fails to register we need to unregister
WWAN not the BT one.
We never need to unregister GPS rfkill here since if GPS rfkill
registration succeeds this function returns without error so no cleanup is
necessary.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Similarly to Dell Vostro V131, Dell Inspiron M5110 also requires an
SMBIOS request to be issued in order for WMI events to be generated and
does not raise an i8042 interrupt when the Dell Instant Launch hotkey is
pressed. However, the event code for that hotkey on this machine is
0xe029, so add it to the legacy keymap.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Tested-by: Darek Stojaczyk <darek.stojaczyk@gmail.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
On models on which an SMBIOS request needs to be issued in order for WMI
events to be generated, pressing the Dell Instant Launch hotkey does not
raise an i8042 interrupt - only a WMI event is generated (0xe025 on Dell
Vostro V131). As that WMI event is the only way the kernel will be
notified about pressing the Dell Instant Launch hotkey on such machines,
the relevant keymap entry has to be changed to a KE_KEY one. However,
the same WMI event should still be ignored on machines which do not
require an SMBIOS request for enabling WMI, so filter it conditionally
in dell_wmi_process_key().
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
On some laptop models (e.g. Dell Vostro V131), WMI events are not
generated until a specific SMBIOS request is issued to register an event
listener [1]. As there seems to be no ACPI method or SMBIOS request to
determine without possible side effects whether a given machine needs to
issue this SMBIOS request in order to receive WMI events, DMI matching
is used to whitelist the models which need it.
[1] https://lists.us.dell.com/pipermail/libsmbios-devel/2015-July/000612.html
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
As dell_smi_error() is exported by dell-smbios, its prefix should be
consistent with other exported symbols, so change function name to
dell_smbios_error().
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
The dell_smi_error() method could be used by modules other than
dell-laptop for convenient translation of SMBIOS request errors into
errno values. Thus, move it to dell-smbios.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Some Lenovo ideapad models lack a physical rfkill switch.
On Lenovo models ideapad Y700 Touch-15ISK and ideapad Y700-15ISK,
ideapad-laptop would wrongly report all radios as blocked by
hardware which caused wireless network connections to fail.
Add these models without an rfkill switch to the no_hw_rfkill list.
Signed-off-by: John Dahlstrom <jodarom@sdf.org>
Cc: <stable@vger.kernel.org> # 3.17.x-: 4fa9dab: ideapad_laptop: Lenovo G50-30 fix rfkill reports wireless blocked
Cc: <stable@vger.kernel.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Lifebook E734/E744/E754 has a radio toggle button which uses code 0x420.
Map it to KEY_RFKILL.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Linus Torvalds
Arnd Bergmann
Yoshinori Sato
Geert Uytterhoeven
Mark Rutland
Ard Biesheuvel
Rafael J. Wysocki
Ingo Molnar
Haishuang Yan
Haiyang Zhang
Dave Airlie
David Wu
Arnaldo Carvalho de Melo
Dasaratharaman Chandramouli
Len Brown
Benjamin Coddington
Bjorn Helgaas
Guillaume Nault
Alexander Duyck
Steven Rostedt
Vladimir Zapolskiy
Sebastian Frias
Sergei Shtylyov
Maciej S. Szmigiero
Michał Kępień
John Dahlstrom