Since the clocksource framework has introduced one suspend clocksource to
compensate the suspend time, this patch registers one always-on timer as
the suspend clocksource.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This patch adds a new "System Timer" on the Mediatek SoCs.
The System Timer is introduced as an always-on timer being
clockevent device for tick-broadcasting.
For clock, it is driven by 13 MHz system clock.
The implementation uses the system clock with no clock
source divider.
For interrupt, the clock event timer can be used by all cores.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Convert the driver to use the timer_of helpers.
This allows to remove custom proprietary structure,
factors out and simplifies the code.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Use specific prefix to specify the name of supported
timer hardware: "General Purpose Timer (GPT)".
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Rename mtk_timer to timer-mediatek to apply new naming convention
in clocksource folder.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This patch adds bindings of new "System Timer" on Mediatek SoCs.
Remove RTC clock in the same time because it is not used by
both "General Purpose Timer" and "System Timer" now.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Currently, quite a few clockevent devices have cpumask set to
cpu_all_mask which should be fine. However, cpu_possible_mask is more
accurate and if there are any other clockevent devices in the system
which have cpumask set to cpu_possible_mask, then having cpu_all_mask
may result in issues (mostly boot hang with forever loops in
clockevents_notify_released).
So, lets replace all the clockevent device cpu_all_mask to
cpu_possible_mask in order to prevent above mentioned possible issue.
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Pull the second set of timekeeping things for 4.19 from John Stultz
* NTP argument clenaups and constification from Ondrej Mosnacek
* Fix to avoid RTC injecting sleeptime when suspend fails from
Mukesh Ojha
* Broading suspsend-timing to include non-stop clocksources that
aren't currently used for timekeeping from Baolin Wang
On some hardware with multiple clocksources, we have coarse grained
clocksources that support the CLOCK_SOURCE_SUSPEND_NONSTOP flag, but
which are less than ideal for timekeeping whereas other clocksources
can be better candidates but halt on suspend.
Currently, the timekeeping core only supports timing suspend using
CLOCK_SOURCE_SUSPEND_NONSTOP clocksources if that clocksource is the
current clocksource for timekeeping.
As a result, some architectures try to implement read_persistent_clock64()
using those non-stop clocksources, but isn't really ideal, which will
introduce more duplicate code. To fix this, provide logic to allow a
registered SUSPEND_NONSTOP clocksource, which isn't the current
clocksource, to be used to calculate the suspend time.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
[jstultz: minor tweaks to merge with previous resume changes]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Currently, there exists a corner case assuming when there is
only one clocksource e.g RTC, and system failed to go to
suspend mode. While resume rtc_resume() injects the sleeptime
as timekeeping_rtc_skipresume() returned 'false' (default value
of sleeptime_injected) due to which we can see mismatch in
timestamps.
This issue can also come in a system where more than one
clocksource are present and very first suspend fails.
Success case:
------------
{sleeptime_injected=false}
rtc_suspend() => timekeeping_suspend() => timekeeping_resume() =>
(sleeptime injected)
rtc_resume()
Failure case:
------------
{failure in sleep path} {sleeptime_injected=false}
rtc_suspend() => rtc_resume()
{sleeptime injected again which was not required as the suspend failed}
Fix this by handling the boolean logic properly.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Originally-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Add 'const' to some function arguments and variables to make it easier
to read the code.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
[jstultz: Also fixup pre-existing checkpatch warnings for
prototype arguments with no variable name]
Signed-off-by: John Stultz <john.stultz@linaro.org>
...instead of kstrtol with a dirty cast.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
The 'ts' argument of process_adj_status() and process_adjtimex_modes()
is unused and can be safely removed.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Pull timekeeping updates from John Stultz:
- Make the timekeeping update more precise when NTP frequency is set
directly by updating the multiplier.
- Adjust selftests
Using ktime_to_ns() is nice to help backports to stable kernels.
Having a typesafe function instead of a macro avoid stupid typos
and waste of time tracking these typos.
Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lkml.kernel.org/r/20180711181641.10369-1-edumazet@google.com
- Join split message for easier grepping,
- Use pr_*() instead of printk*(),
- Use %u to format unsigned cpu numbers.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20180712144118.8819-1-geert+renesas@glider.be
When the NTP frequency is set directly from userspace using the
ADJ_FREQUENCY or ADJ_TICK timex mode, immediately update the
timekeeper's multiplier instead of waiting for the next tick.
This removes a hidden non-deterministic delay in setting of the
frequency and allows an extremely tight control of the system clock
with update rates close to or even exceeding the kernel HZ.
The update is limited to archs using modern timekeeping
(!ARCH_USES_GETTIMEOFFSET).
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
In the past we've warned when ADJ_OFFSET was in progress, usually
caused by ntpd or some other time adjusting daemon running in non
steady sate, which can cause the skew calculations to be
incorrect.
Thus, this patch checks to see if the clock was being adjusted
when we fail so that we don't cause false negatives.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Suggested-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
v2: Widened the checks to look for other clock adjustments that
could happen, as suggested by Miroslav
v3: Fixed up commit message
Air Icy reported:
UBSAN: Undefined behaviour in kernel/time/alarmtimer.c:811:7
signed integer overflow:
1529859276030040771 + 9223372036854775807 cannot be represented in type 'long long int'
Call Trace:
alarm_timer_nsleep+0x44c/0x510 kernel/time/alarmtimer.c:811
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1235 [inline]
__se_sys_clock_nanosleep kernel/time/posix-timers.c:1213 [inline]
__x64_sys_clock_nanosleep+0x326/0x4e0 kernel/time/posix-timers.c:1213
do_syscall_64+0xb8/0x3a0 arch/x86/entry/common.c:290
alarm_timer_nsleep() uses ktime_add() to add the current time and the
relative expiry value. ktime_add() has no sanity checks so the addition
can overflow when the relative timeout is large enough.
Use ktime_add_safe() which has the necessary sanity checks in place and
limits the result to the valid range.
Fixes: 9a7adcf5c6 ("timers: Posix interface for alarm-timers")
Reported-by: Team OWL337 <icytxw@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1807020926360.1595@nanos.tec.linutronix.de
The posix timer overrun handling is broken because the forwarding functions
can return a huge number of overruns which does not fit in an int. As a
consequence timer_getoverrun(2) and siginfo::si_overrun can turn into
random number generators.
The k_clock::timer_forward() callbacks return a 64 bit value now. Make
k_itimer::ti_overrun[_last] 64bit as well, so the kernel internal
accounting is correct. 3Remove the temporary (int) casts.
Add a helper function which clamps the overrun value returned to user space
via timer_getoverrun(2) or siginfo::si_overrun limited to a positive value
between 0 and INT_MAX. INT_MAX is an indicator for user space that the
overrun value has been clamped.
Reported-by: Team OWL337 <icytxw@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Link: https://lkml.kernel.org/r/20180626132705.018623573@linutronix.de
The posix timer ti_overrun handling is broken because the forwarding
functions can return a huge number of overruns which does not fit in an
int. As a consequence timer_getoverrun(2) and siginfo::si_overrun can turn
into random number generators.
As a first step to address that let the timer_forward() callbacks return
the full 64 bit value.
Cast it to (int) temporarily until k_itimer::ti_overrun is converted to
64bit and the conversion to user space visible values is sanitized.
Reported-by: Team OWL337 <icytxw@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Link: https://lkml.kernel.org/r/20180626132704.922098090@linutronix.de
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Merge tag 'for-4.18-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"We have a few regression fixes for qgroup rescan status tracking and
the vm_fault_t conversion that mixed up the error values"
* tag 'for-4.18-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: fix mount failure when qgroup rescan is in progress
Btrfs: fix regression in btrfs_page_mkwrite() from vm_fault_t conversion
btrfs: quota: Set rescan progress to (u64)-1 if we hit last leaf
Pull vfs fix from Al Viro:
"Followup to procfs-seq_file series this window"
This fixes a memory leak by making sure that proc seq files release any
private data on close. The 'proc_seq_open' has to be properly paired
with 'proc_seq_release' that releases the extra private data.
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
proc: add proc_seq_release
Here are a few small staging and IIO driver fixes for 4.18-rc3.
Nothing major or big, all just fixes for reported problems since
4.18-rc1. All of these have been in linux-next this week with no
reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO fixes from Greg KH:
"Here are a few small staging and IIO driver fixes for 4.18-rc3.
Nothing major or big, all just fixes for reported problems since
4.18-rc1. All of these have been in linux-next this week with no
reported problems"
* tag 'staging-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: android: ion: Return an ERR_PTR in ion_map_kernel
staging: comedi: quatech_daqp_cs: fix no-op loop daqp_ao_insn_write()
iio: imu: inv_mpu6050: Fix probe() failure on older ACPI based machines
iio: buffer: fix the function signature to match implementation
iio: mma8452: Fix ignoring MMA8452_INT_DRDY
iio: tsl2x7x/tsl2772: avoid potential division by zero
iio: pressure: bmp280: fix relative humidity unit
Here are 5 fixes for the tty core and some serial drivers.
The tty core one fix some security and other issues reported by the
syzbot that I have taken too long in responding to (sorry Tetsuo!). The
8350 serial driver fix resolves an issue of devices that used to work
properly stopping working as they shouldn't have been added to a
blacklist.
All of these have been in linux-next for a few days with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are five fixes for the tty core and some serial drivers.
The tty core ones fix some security and other issues reported by the
syzbot that I have taken too long in responding to (sorry Tetsuo!).
The 8350 serial driver fix resolves an issue of devices that used to
work properly stopping working as they shouldn't have been added to a
blacklist.
All of these have been in linux-next for a few days with no reported
issues"
* tag 'tty-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
vt: prevent leaking uninitialized data to userspace via /dev/vcs*
serdev: fix memleak on module unload
serial: 8250_pci: Remove stalled entries in blacklist
n_tty: Access echo_* variables carefully.
n_tty: Fix stall at n_tty_receive_char_special().
Here is a number of USB gadget and other driver fixes for 4.18-rc3.
There's a bunch of them here, most of them being gadget driver and xhci
host controller fixes for reported issues (as normal), but there are
also some new device ids, and some fixes for the typec code.
There is an acpi core patch in here that was acked by the acpi
maintainer as it is needed for the typec fixes in order to properly
solve a problem in that driver.
All of these have been in linux-next this week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here is a number of USB gadget and other driver fixes for 4.18-rc3.
There's a bunch of them here, most of them being gadget driver and
xhci host controller fixes for reported issues (as normal), but there
are also some new device ids, and some fixes for the typec code.
There is an acpi core patch in here that was acked by the acpi
maintainer as it is needed for the typec fixes in order to properly
solve a problem in that driver.
All of these have been in linux-next this week with no reported
issues"
* tag 'usb-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
usb: chipidea: host: fix disconnection detect issue
usb: typec: tcpm: fix logbuffer index is wrong if _tcpm_log is re-entered
typec: tcpm: Fix a msecs vs jiffies bug
NFC: pn533: Fix wrong GFP flag usage
usb: cdc_acm: Add quirk for Uniden UBC125 scanner
staging/typec: fix tcpci_rt1711h build errors
usb: typec: ucsi: Fix for incorrect status data issue
usb: typec: ucsi: acpi: Workaround for cache mode issue
acpi: Add helper for deactivating memory region
usb: xhci: increase CRS timeout value
usb: xhci: tegra: fix runtime PM error handling
usb: xhci: remove the code build warning
xhci: Fix kernel oops in trace_xhci_free_virt_device
xhci: Fix perceived dead host due to runtime suspend race with event handler
dwc2: gadget: Fix ISOC IN DDMA PID bitfield value calculation
usb: gadget: dwc2: fix memory leak in gadget_init()
usb: gadget: composite: fix delayed_status race condition when set_interface
usb: dwc2: fix isoc split in transfer with no data
usb: dwc2: alloc dma aligned buffer for isoc split in
usb: dwc2: fix the incorrect bitmaps for the ports of multi_tt hub
...
Pull parisc fixes and cleanups from Helge Deller:
"Nothing exiting in this patchset, just
- small cleanups of header files
- default to 4 CPUs when building a SMP kernel
- mark 16kB and 64kB page sizes broken
- addition of the new io_pgetevents syscall"
* 'parisc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Build kernel without -ffunction-sections
parisc: Reduce debug output in unwind code
parisc: Wire up io_pgetevents syscall
parisc: Default to 4 SMP CPUs
parisc: Convert printk(KERN_LEVEL) to pr_lvl()
parisc: Mark 16kB and 64kB page sizes BROKEN
parisc: Drop struct sigaction from not exported header file
A smaller batch for the end of the week (let's see if I can keep the
weekly cadence going for once).
All medium-grade fixes here, nothing worrisome:
- Fixes for some fairly old bugs around SD card write-protect detection
and GPIO interrupt assignments on Davinci.
- Wifi module suspend fix for Hikey.
- Minor DT tweaks to fix inaccuracies for Amlogic platforms, on of
which solves booting with third-party u-boot.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A smaller batch for the end of the week (let's see if I can keep the
weekly cadence going for once).
All medium-grade fixes here, nothing worrisome:
- Fixes for some fairly old bugs around SD card write-protect
detection and GPIO interrupt assignments on Davinci.
- Wifi module suspend fix for Hikey.
- Minor DT tweaks to fix inaccuracies for Amlogic platforms, one
of which solves booting with third-party u-boot"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: dts: hikey960: Define wl1837 power capabilities
arm64: dts: hikey: Define wl1835 power capabilities
ARM64: dts: meson-gxl: fix Mali GPU compatible string
ARM64: dts: meson-axg: fix ethernet stability issue
ARM64: dts: meson-gx: fix ATF reserved memory region
ARM64: dts: meson-gxl-s905x-p212: Add phy-supply for usb0
ARM64: dts: meson: fix register ranges for SD/eMMC
ARM64: dts: meson: disable sd-uhs modes on the libretech-cc
ARM: dts: da850: Fix interrups property for gpio
ARM: davinci: board-da850-evm: fix WP pin polarity for MMC/SD
- introduce __diag_* macros and suppress -Wattribute-alias warnings from GCC 8
- fix stack protector test script for x86_64
- fix line number handling in Kconfig
- document that '#' starts a comment in Kconfig
- handle P_SYMBOL property in dump debugging of Kconfig
- correct help message of LD_DEAD_CODE_DATA_ELIMINATION
- fix occasional segmentation faults in Kconfig
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Merge tag 'kbuild-fixes-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- introduce __diag_* macros and suppress -Wattribute-alias warnings
from GCC 8
- fix stack protector test script for x86_64
- fix line number handling in Kconfig
- document that '#' starts a comment in Kconfig
- handle P_SYMBOL property in dump debugging of Kconfig
- correct help message of LD_DEAD_CODE_DATA_ELIMINATION
- fix occasional segmentation faults in Kconfig
* tag 'kbuild-fixes-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: loop boundary condition fix
kbuild: reword help of LD_DEAD_CODE_DATA_ELIMINATION
kconfig: handle P_SYMBOL in print_symbol()
kconfig: document Kconfig source file comments
kconfig: fix line numbers for if-entries in menu tree
stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y
powerpc: Remove -Wattribute-alias pragmas
disable -Wattribute-alias warning for SYSCALL_DEFINEx()
kbuild: add macro for controlling warnings to linux/compiler.h
Pull x86 fixes from Ingo Molnar:
"The biggest diffstat comes from self-test updates, plus there's entry
code fixes, 5-level paging related fixes, console debug output fixes,
and misc fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Clean up the printk()s in show_fault_oops()
x86/mm: Drop unneeded __always_inline for p4d page table helpers
x86/efi: Fix efi_call_phys_epilog() with CONFIG_X86_5LEVEL=y
selftests/x86/sigreturn: Do minor cleanups
selftests/x86/sigreturn/64: Fix spurious failures on AMD CPUs
x86/entry/64/compat: Fix "x86/entry/64/compat: Preserve r8-r11 in int $0x80"
x86/mm: Don't free P4D table when it is folded at runtime
x86/entry/32: Add explicit 'l' instruction suffix
x86/mm: Get rid of KERN_CONT in show_fault_oops()
Pull perf fixes from Ingo Molnar:
"Tooling fixes mostly, plus a build warning fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
perf/core: Move inline keyword at the beginning of declaration
tools/headers: Pick up latest kernel ABIs
perf tools: Fix crash caused by accessing feat_ops[HEADER_LAST_FEATURE]
perf script: Fix crash because of missing evsel->priv
perf script: Add missing output fields in a hint
perf bench: Fix numa report output code
perf stat: Remove duplicate event counting
perf alias: Rebuild alias expression string to make it comparable
perf alias: Remove trailing newline when reading sysfs files
perf tools: Fix a clang 7.0 compilation error
tools include uapi: Synchronize bpf.h with the kernel
tools include uapi: Update if_link.h to pick IFLA_{BRPORT_ISOLATED,VXLAN_TTL_INHERIT}
tools include powerpc: Update arch/powerpc/include/uapi/asm/unistd.h copy to get 'rseq' syscall
perf tools: Update x86's syscall_64.tbl, adding 'io_pgetevents' and 'rseq'
tools headers uapi: Synchronize drm/drm.h
perf intel-pt: Fix packet decoding of CYC packets
perf tests: Add valid callback for parse-events test
perf tests: Add event parsing error handling to parse events test
perf report powerpc: Fix crash if callchain is empty
perf test session topology: Fix test on s390
...
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Merge tag 'selinux-pr-20180629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fix from Paul Moore:
"One fairly straightforward patch to fix a longstanding issue where a
process could stall while accessing files in selinuxfs and block
everyone else due to a held mutex.
The patch passes all our tests and looks to apply cleanly to your
current tree"
* tag 'selinux-pr-20180629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: move user accesses in selinuxfs out of locked regions
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Merge tag 'for-linus-20180629' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Small set of fixes for this series. Mostly just minor fixes, the only
oddball in here is the sg change.
The sg change came out of the stall fix for NVMe, where we added a
mempool and limited us to a single page allocation. CONFIG_SG_DEBUG
sort-of ruins that, since we'd need to account for that. That's
actually a generic problem, since lots of drivers need to allocate SG
lists. So this just removes support for CONFIG_SG_DEBUG, which I added
back in 2007 and to my knowledge it was never useful.
Anyway, outside of that, this pull contains:
- clone of request with special payload fix (Bart)
- drbd discard handling fix (Bart)
- SATA blk-mq stall fix (me)
- chunk size fix (Keith)
- double free nvme rdma fix (Sagi)"
* tag 'for-linus-20180629' of git://git.kernel.dk/linux-block:
sg: remove ->sg_magic member
drbd: Fix drbd_request_prepare() discard handling
blk-mq: don't queue more if we get a busy return
block: Fix cloning of requests with a special payload
nvme-rdma: fix possible double free of controller async event buffer
block: Fix transfer when chunk sectors exceeds max
Two regression fixes, and a new syscall wire-up.
A fix for the recent conversion to time64_t in the powermac RTC routines, which
caused time to go backward.
Another fix for fallout from the split PMD PTL conversion.
Wire up the new io_pgetevents() syscall.
Thanks to:
Aneesh Kumar K.V, Arnd Bergmann, Breno Leitao, Mathieu Malaterre.
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Merge tag 'powerpc-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two regression fixes, and a new syscall wire-up:
- A fix for the recent conversion to time64_t in the powermac RTC
routines, which caused time to go backward.
- Another fix for fallout from the split PMD PTL conversion.
- Wire up the new io_pgetevents() syscall.
Thanks to: Aneesh Kumar K.V, Arnd Bergmann, Breno Leitao, Mathieu
Malaterre"
* tag 'powerpc-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powermac: Fix rtc read/write functions
powerpc/mm/32: Fix pgtable_page_dtor call
powerpc: Wire up io_pgetevents
and fixes interrupt property for DA850 SoC GPIO as defined in
device-tree.
Both of these are not introduced with v4.18 merge but have
existed prior.
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Merge tag 'davinci-fixes-for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes
This fixes polarity of SD card write-protect pin on DA850 EVM
and fixes interrupt property for DA850 SoC GPIO as defined in
device-tree.
Both of these are not introduced with v4.18 merge but have
existed prior.
* tag 'davinci-fixes-for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: dts: da850: Fix interrups property for gpio
ARM: davinci: board-da850-evm: fix WP pin polarity for MMC/SD
Signed-off-by: Olof Johansson <olof@lixom.net>
- Added power capabilities for the mmc host controller on the
hikey and hikey960 boards to avoid broken wifi.
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Merge tag 'hisi-fixes-for-4.18' of git://github.com/hisilicon/linux-hisi into fixes
ARM64: hisi fixes for 4.18
- Added power capabilities for the mmc host controller on the
hikey and hikey960 boards to avoid broken wifi.
* tag 'hisi-fixes-for-4.18' of git://github.com/hisilicon/linux-hisi:
arm64: dts: hikey960: Define wl1837 power capabilities
arm64: dts: hikey: Define wl1835 power capabilities
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull i2c fixes from Wolfram Sang:
- a revert because of bugzilla #200045 (and some documentation about
it)
- another regression fix in the i2c-gpio driver
- a leak fix for the i2c core
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: gpio: initialize SCL to HIGH again
i2c: smbus: kill memory leak on emulated and failed DMA SMBus xfers
i2c: algos: bit: mention our experience about initial states
Revert "i2c: algo-bit: init the bus to a known state"
As suggested by Nick Piggin it seems we can drop the -ffunction-sections
compile flag, now that the kernel uses thin archives. Testing with 32-
and 64-bit kernel showed no difference in kernel size.
Suggested-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This was introduced more than a decade ago when sg chaining was
added, but we never really caught anything with it. The scatterlist
entry size can be critical, since drivers allocate it, so remove
the magic member. Recently it's been triggering allocation stalls
and failures in NVMe.
Tested-by: Jordan Glover <Golden_Miller83@protonmail.ch>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- Fix the initialization time error handling in the recently added
Kryo cpufreq driver (Dan Carpenter).
- Fix up the recently added coverage of performance states in the
generic power domains (genpd) framework (Viresh Kumar).
- Add missing documentation of the new hwp_dynamic_boost sysfs knob
in the intel_pstate driver (Rafael Wysocki).
- Fix incorrect sysfs path in the intel_pstate driver documentation
(Rafael Wysocki).
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Merge tag 'pm-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix up recently added features (the Kryo cpufreq driver and
performance states coverage in the generic power domains framework),
add missing documentation for a recently added sysfs knob in the
intel_pstate driver and fix an error in its documentation.
Specifics:
- Fix the initialization time error handling in the recently added
Kryo cpufreq driver (Dan Carpenter).
- Fix up the recently added coverage of performance states in the
generic power domains (genpd) framework (Viresh Kumar).
- Add missing documentation of the new hwp_dynamic_boost sysfs knob
in the intel_pstate driver (Rafael Wysocki).
- Fix incorrect sysfs path in the intel_pstate driver documentation
(Rafael Wysocki)"
* tag 'pm-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Documentation: intel_pstate: Describe hwp_dynamic_boost sysfs knob
Documentation: admin-guide: intel_pstate: Fix sysfs path
PM / Domains: Rename opp_node to np
PM / Domains: Fix return value of of_genpd_opp_to_performance_state()
cpufreq: qcom-kryo: Fix error handling in probe()
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Merge tag 'drm-fixes-2018-06-29' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Nothing too major this round:
- small set of mali-dp fixes
- single meson fix
- a bunch of amdgpu fixes (one makes non-4k page sizes not be a bad
experience)"
* tag 'drm-fixes-2018-06-29' of git://anongit.freedesktop.org/drm/drm:
drm/amd/display: release spinlock before committing updates to stream
drm/amdgpu:Support new VCN FW version naming convention
drm/amdgpu: fix UBSAN: Undefined behaviour for amdgpu_fence.c
drm/meson: Fix an un-handled error path in 'meson_drv_bind_master()'
drm/amdgpu: GPU vs CPU page size fixes in amdgpu_vm_bo_split_mapping
drm/amdgpu: Count disabled CRTCs in commit tail earlier
drm/mali-dp: Rectify the width and height passed to rotmem_required()
drm/arm/malidp: Preserve LAYER_FORMAT contents when setting format
drm: mali-dp: Enable Global SE interrupts mask for DP500
drm/arm/malidp: Ensure that the crtcs are shutdown before removing any encoder/connector
bio_clone_bioset(). Also fixes splitting bio that has integrity
payload.
- Three fixes related to properly validating DAX capabilities of a
stacked DM device that will advertise DAX support.
- Update DM writecache target to use 2-factor allocator arguments. Kees
says this is the last related change for 4.18.
- Fix DM zoned target to use GFP_NOIO to avoid triggering reclaim during
IO submission (caught by lockdep).
- Fix DM thinp to gracefully recover from running out of data space
while a previous async discard completes (whereby freeing space).
- Fix DM thinp's metadata transaction commit to avoid needless work.
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Merge tag 'for-4.18/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix dm core to use more efficient bio_split() instead of
bio_clone_bioset(). Also fixes splitting bio that has integrity
payload.
- Three fixes related to properly validating DAX capabilities of a
stacked DM device that will advertise DAX support.
- Update DM writecache target to use 2-factor allocator arguments. Kees
says this is the last related change for 4.18.
- Fix DM zoned target to use GFP_NOIO to avoid triggering reclaim
during IO submission (caught by lockdep).
- Fix DM thinp to gracefully recover from running out of data space
while a previous async discard completes (whereby freeing space).
- Fix DM thinp's metadata transaction commit to avoid needless work.
* tag 'for-4.18/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: prevent DAX mounts if not supported
dax: check for QUEUE_FLAG_DAX in bdev_dax_supported()
pmem: only set QUEUE_FLAG_DAX for fsdax mode
dm thin: handle running out of data space vs concurrent discard
dm raid: don't use 'const' in function return
dm zoned: avoid triggering reclaim from inside dmz_map()
dm writecache: use 2-factor allocator arguments
dm thin metadata: remove needless work from __commit_transaction
dm: use bio_split() when splitting out the already processed bio
Pull single NVMe fix from Christoph.
* 'nvme-4.18' of git://git.infradead.org/nvme:
nvme-rdma: fix possible double free of controller async event buffer
Baolin Wang