Alexei Starovoitov says:
====================
pull-request: bpf 2020-06-17
The following pull-request contains BPF updates for your *net* tree.
We've added 10 non-merge commits during the last 2 day(s) which contain
a total of 14 files changed, 158 insertions(+), 59 deletions(-).
The main changes are:
1) Important fix for bpf_probe_read_kernel_str() return value, from Andrii.
2) [gs]etsockopt fix for large optlen, from Stanislav.
3) devmap allocation fix, from Toke.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement support for fetching nvdimm health information via
H_SCM_HEALTH hcall as documented in Ref[1]. The hcall returns a pair
of 64-bit bitmap, bitwise-and of which is then stored in
'struct papr_scm_priv' and subsequently partially exposed to
user-space via newly introduced dimm specific attribute
'papr/flags'. Since the hcall is costly, the health information is
cached and only re-queried, 60s after the previous successful hcall.
The patch also adds a documentation text describing flags reported by
the the new sysfs attribute 'papr/flags' is also introduced at
Documentation/ABI/testing/sysfs-bus-papr-pmem.
[1] commit 58b278f568 ("powerpc: Provide initial documentation for
PAPR hcalls")
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20200615124407.32596-4-vaibhav@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Add documentation to 'papr_hcalls.rst' describing the bitmap flags
that are returned from H_SCM_HEALTH hcall as per the PAPR-SCM
specification.
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Acked-by: Ira Weiny <ira.weiny@intel.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20200615124407.32596-2-vaibhav@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
includes the per-inode DAX support, which was dependant on the DAX
infrastructure which came in via the XFS tree, and a number of
regression and bug fixes; most notably the "BUG: using
smp_processor_id() in preemptible code in ext4_mb_new_blocks" reported
by syzkaller.
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Merge tag 'ext4-for-linus-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull more ext4 updates from Ted Ts'o:
"This is the second round of ext4 commits for 5.8 merge window [1].
It includes the per-inode DAX support, which was dependant on the DAX
infrastructure which came in via the XFS tree, and a number of
regression and bug fixes; most notably the "BUG: using
smp_processor_id() in preemptible code in ext4_mb_new_blocks" reported
by syzkaller"
[1] The pull request actually came in 15 minutes after I had tagged the
rc1 release. Tssk, tssk, late.. - Linus
* tag 'ext4-for-linus-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4, jbd2: ensure panic by fix a race between jbd2 abort and ext4 error handlers
ext4: support xattr gnu.* namespace for the Hurd
ext4: mballoc: Use this_cpu_read instead of this_cpu_ptr
ext4: avoid utf8_strncasecmp() with unstable name
ext4: stop overwrite the errcode in ext4_setup_super
ext4: fix partial cluster initialization when splitting extent
ext4: avoid race conditions when remounting with options that change dax
Documentation/dax: Update DAX enablement for ext4
fs/ext4: Introduce DAX inode flag
fs/ext4: Remove jflag variable
fs/ext4: Make DAX mount option a tri-state
fs/ext4: Only change S_DAX on inode load
fs/ext4: Update ext4_should_use_dax()
fs/ext4: Change EXT4_MOUNT_DAX to EXT4_MOUNT_DAX_ALWAYS
fs/ext4: Disallow verity if inode is DAX
fs/ext4: Narrow scope of DAX check in setflags
sve.rst describes a flag PR_SVE_SET_VL_INHERIT for the
PR_SVE_SET_VL prctl, but there is no flag of this name. The flag
is shared between the _GET and _SET calls, so the _SET prefix was
dropped, giving the name PR_SVE_VL_INHERIT in the headers.
Fix it.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Link: https://lore.kernel.org/r/1591808590-20210-2-git-send-email-Dave.Martin@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
There are no more user of this function attribute, also, with us now
actively supporting '__no_kcsan inline' it doesn't make sense to have
in any case.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Pull networking fixes from David Miller:
1) Fix cfg80211 deadlock, from Johannes Berg.
2) RXRPC fails to send norigications, from David Howells.
3) MPTCP RM_ADDR parsing has an off by one pointer error, fix from
Geliang Tang.
4) Fix crash when using MSG_PEEK with sockmap, from Anny Hu.
5) The ucc_geth driver needs __netdev_watchdog_up exported, from
Valentin Longchamp.
6) Fix hashtable memory leak in dccp, from Wang Hai.
7) Fix how nexthops are marked as FDB nexthops, from David Ahern.
8) Fix mptcp races between shutdown and recvmsg, from Paolo Abeni.
9) Fix crashes in tipc_disc_rcv(), from Tuong Lien.
10) Fix link speed reporting in iavf driver, from Brett Creeley.
11) When a channel is used for XSK and then reused again later for XSK,
we forget to clear out the relevant data structures in mlx5 which
causes all kinds of problems. Fix from Maxim Mikityanskiy.
12) Fix memory leak in genetlink, from Cong Wang.
13) Disallow sockmap attachments to UDP sockets, it simply won't work.
From Lorenz Bauer.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits)
net: ethernet: ti: ale: fix allmulti for nu type ale
net: ethernet: ti: am65-cpsw-nuss: fix ale parameters init
net: atm: Remove the error message according to the atomic context
bpf: Undo internal BPF_PROBE_MEM in BPF insns dump
libbpf: Support pre-initializing .bss global variables
tools/bpftool: Fix skeleton codegen
bpf: Fix memlock accounting for sock_hash
bpf: sockmap: Don't attach programs to UDP sockets
bpf: tcp: Recv() should return 0 when the peer socket is closed
ibmvnic: Flush existing work items before device removal
genetlink: clean up family attributes allocations
net: ipa: header pad field only valid for AP->modem endpoint
net: ipa: program upper nibbles of sequencer type
net: ipa: fix modem LAN RX endpoint id
net: ipa: program metadata mask differently
ionic: add pcie_print_link_status
rxrpc: Fix race between incoming ACK parser and retransmitter
net/mlx5: E-Switch, Fix some error pointer dereferences
net/mlx5: Don't fail driver on failure to create debugfs
net/mlx5e: CT: Fix ipv6 nat header rewrite actions
...
I'm not convinced the script makes useful automaed help lines anyway,
but since we're trying to deprecate the use of "---help---" in Kconfig
files, let's fix the doc example code too.
See commit a7f7f6248d ("treewide: replace '---help---' in Kconfig
files with 'help'")
Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull i2c updates from Wolfram Sang:
"I2C has quite some patches for you this time. I hope it is the move to
per-driver-maintainers which is now showing results. We will see.
The big news is two new drivers (Nuvoton NPCM and Qualcomm CCI),
larger refactoring of the Designware, Tegra, and PXA drivers, the
Cadence driver supports being a slave now, and there is support to
instanciate SPD eeproms for well-known cases (which will be
user-visible because the i801 driver supports it), and some
devm_platform_ioremap_resource() conversions which blow up the
diffstat.
Note that I applied the Nuvoton driver quite late, so some minor fixup
patches arrived during the merge window. I chose to apply them right
away because they were trivial"
* 'i2c/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (109 commits)
i2c: Drop stray comma in MODULE_AUTHOR statements
i2c: npcm7xx: npcm_i2caddr[] can be static
MAINTAINERS: npcm7xx: Add maintainer for Nuvoton NPCM BMC
i2c: npcm7xx: Fix a couple of error codes in probe
i2c: icy: Fix build with CONFIG_AMIGA_PCMCIA=n
i2c: npcm7xx: Remove unnecessary parentheses
i2c: npcm7xx: Add support for slave mode for Nuvoton
i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver
dt-bindings: i2c: npcm7xx: add NPCM I2C controller
i2c: pxa: don't error out if there's no pinctrl
i2c: add 'single-master' property to generic bindings
i2c: designware: Add Baikal-T1 System I2C support
i2c: designware: Move reg-space remapping into a dedicated function
i2c: designware: Retrieve quirk flags as early as possible
i2c: designware: Convert driver to using regmap API
i2c: designware: Discard Cherry Trail model flag
i2c: designware: Add Baytrail sem config DW I2C platform dependency
i2c: designware: slave: Set DW I2C core module dependency
i2c: designware: Use `-y` to build multi-object modules
dt-bindings: i2c: dw: Add Baikal-T1 SoC I2C controller
...
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Merge tag 'media/v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull more media updates from Mauro Carvalho Chehab:
- a set of atomisp patches. They remove several abstraction layers, and
fixes clang and gcc warnings (that were hidden via some macros that
were disabling 4 or 5 types of warnings there). There are also some
important fixes and sensor auto-detection on newer BIOSes via ACPI
_DCM tables.
- some fixes
* tag 'media/v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (95 commits)
media: rkvdec: Fix H264 scaling list order
media: v4l2-ctrls: Unset correct HEVC loop filter flag
media: videobuf2-dma-contig: fix bad kfree in vb2_dma_contig_clear_max_seg_size
media: v4l2-subdev.rst: correct information about v4l2 events
media: s5p-mfc: Properly handle dma_parms for the allocated devices
media: medium: cec: Make MEDIA_CEC_SUPPORT default to n if !MEDIA_SUPPORT
media: cedrus: Implement runtime PM
media: cedrus: Program output format during each run
media: atomisp: improve ACPI/DMI detection logs
media: Revert "media: atomisp: add Asus Transform T101HA ACPI vars"
media: Revert "media: atomisp: Add some ACPI detection info"
media: atomisp: improve sensor detection code to use _DSM table
media: atomisp: get rid of an iomem abstraction layer
media: atomisp: get rid of a string_support.h abstraction layer
media: atomisp: use strscpy() instead of less secure variants
media: atomisp: set DFS to MAX if sensor doesn't report fps
media: atomisp: use different dfs failed messages
media: atomisp: change the detection of ISP2401 at runtime
media: atomisp: use macros from intel-family.h
media: atomisp: don't set hpll_freq twice with different values
...
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Merge tag 'notifications-20200601' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull notification queue from David Howells:
"This adds a general notification queue concept and adds an event
source for keys/keyrings, such as linking and unlinking keys and
changing their attributes.
Thanks to Debarshi Ray, we do have a pull request to use this to fix a
problem with gnome-online-accounts - as mentioned last time:
https://gitlab.gnome.org/GNOME/gnome-online-accounts/merge_requests/47
Without this, g-o-a has to constantly poll a keyring-based kerberos
cache to find out if kinit has changed anything.
[ There are other notification pending: mount/sb fsinfo notifications
for libmount that Karel Zak and Ian Kent have been working on, and
Christian Brauner would like to use them in lxc, but let's see how
this one works first ]
LSM hooks are included:
- A set of hooks are provided that allow an LSM to rule on whether or
not a watch may be set. Each of these hooks takes a different
"watched object" parameter, so they're not really shareable. The
LSM should use current's credentials. [Wanted by SELinux & Smack]
- A hook is provided to allow an LSM to rule on whether or not a
particular message may be posted to a particular queue. This is
given the credentials from the event generator (which may be the
system) and the watch setter. [Wanted by Smack]
I've provided SELinux and Smack with implementations of some of these
hooks.
WHY
===
Key/keyring notifications are desirable because if you have your
kerberos tickets in a file/directory, your Gnome desktop will monitor
that using something like fanotify and tell you if your credentials
cache changes.
However, we also have the ability to cache your kerberos tickets in
the session, user or persistent keyring so that it isn't left around
on disk across a reboot or logout. Keyrings, however, cannot currently
be monitored asynchronously, so the desktop has to poll for it - not
so good on a laptop. This facility will allow the desktop to avoid the
need to poll.
DESIGN DECISIONS
================
- The notification queue is built on top of a standard pipe. Messages
are effectively spliced in. The pipe is opened with a special flag:
pipe2(fds, O_NOTIFICATION_PIPE);
The special flag has the same value as O_EXCL (which doesn't seem
like it will ever be applicable in this context)[?]. It is given up
front to make it a lot easier to prohibit splice&co from accessing
the pipe.
[?] Should this be done some other way? I'd rather not use up a new
O_* flag if I can avoid it - should I add a pipe3() system call
instead?
The pipe is then configured::
ioctl(fds[1], IOC_WATCH_QUEUE_SET_SIZE, queue_depth);
ioctl(fds[1], IOC_WATCH_QUEUE_SET_FILTER, &filter);
Messages are then read out of the pipe using read().
- It should be possible to allow write() to insert data into the
notification pipes too, but this is currently disabled as the
kernel has to be able to insert messages into the pipe *without*
holding pipe->mutex and the code to make this work needs careful
auditing.
- sendfile(), splice() and vmsplice() are disabled on notification
pipes because of the pipe->mutex issue and also because they
sometimes want to revert what they just did - but one or more
notification messages might've been interleaved in the ring.
- The kernel inserts messages with the wait queue spinlock held. This
means that pipe_read() and pipe_write() have to take the spinlock
to update the queue pointers.
- Records in the buffer are binary, typed and have a length so that
they can be of varying size.
This allows multiple heterogeneous sources to share a common
buffer; there are 16 million types available, of which I've used
just a few, so there is scope for others to be used. Tags may be
specified when a watchpoint is created to help distinguish the
sources.
- Records are filterable as types have up to 256 subtypes that can be
individually filtered. Other filtration is also available.
- Notification pipes don't interfere with each other; each may be
bound to a different set of watches. Any particular notification
will be copied to all the queues that are currently watching for it
- and only those that are watching for it.
- When recording a notification, the kernel will not sleep, but will
rather mark a queue as having lost a message if there's
insufficient space. read() will fabricate a loss notification
message at an appropriate point later.
- The notification pipe is created and then watchpoints are attached
to it, using one of:
keyctl_watch_key(KEY_SPEC_SESSION_KEYRING, fds[1], 0x01);
watch_mount(AT_FDCWD, "/", 0, fd, 0x02);
watch_sb(AT_FDCWD, "/mnt", 0, fd, 0x03);
where in both cases, fd indicates the queue and the number after is
a tag between 0 and 255.
- Watches are removed if either the notification pipe is destroyed or
the watched object is destroyed. In the latter case, a message will
be generated indicating the enforced watch removal.
Things I want to avoid:
- Introducing features that make the core VFS dependent on the
network stack or networking namespaces (ie. usage of netlink).
- Dumping all this stuff into dmesg and having a daemon that sits
there parsing the output and distributing it as this then puts the
responsibility for security into userspace and makes handling
namespaces tricky. Further, dmesg might not exist or might be
inaccessible inside a container.
- Letting users see events they shouldn't be able to see.
TESTING AND MANPAGES
====================
- The keyutils tree has a pipe-watch branch that has keyctl commands
for making use of notifications. Proposed manual pages can also be
found on this branch, though a couple of them really need to go to
the main manpages repository instead.
If the kernel supports the watching of keys, then running "make
test" on that branch will cause the testing infrastructure to spawn
a monitoring process on the side that monitors a notifications pipe
for all the key/keyring changes induced by the tests and they'll
all be checked off to make sure they happened.
https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git/log/?h=pipe-watch
- A test program is provided (samples/watch_queue/watch_test) that
can be used to monitor for keyrings, mount and superblock events.
Information on the notifications is simply logged to stdout"
* tag 'notifications-20200601' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
smack: Implement the watch_key and post_notification hooks
selinux: Implement the watch_key security hook
keys: Make the KEY_NEED_* perms an enum rather than a mask
pipe: Add notification lossage handling
pipe: Allow buffers to be marked read-whole-or-error for notifications
Add sample notification program
watch_queue: Add a key/keyring notification facility
security: Add hooks to rule on setting a watch
pipe: Add general notification queue support
pipe: Add O_NOTIFICATION_PIPE
security: Add a hook for the point of notification insertion
uapi: General notification queue definitions
- Thermal framework cleanups (self-encapsulation, pointless stubs,
private structures) (Daniel Lezcano)
- Use the PM QoS frequency changes for the devfreq cooling device (Matthias
Kaehlcke)
- Remove duplicate error messages from platform_get_irq() error handling
(Markus Elfring)
- Add support for the bandgap sensors (Keerthy)
- Statically initialize .get_mode/.set_mode ops (Andrzej Pietrasiewicz)
- Add Renesas R-Car maintainer entry (Niklas Söderlund)
- Fix error checking after calling ti_bandgap_get_sensor_data() for the TI SoC
thermal (Sudip Mukherjee)
- Add latency constraint for the idle injection, the DT binding and the change
the registering function (Daniel Lezcano)
- Convert the thermal framework binding to the Yaml schema (Amit Kucheria)
- Replace zero-length array with flexible-array on i.MX 8MM (Gustavo A. R. Silva)
- Thermal framework cleanups (alphabetic order for heads, replace module.h by
export.h, make file naming consistent) (Amit Kucheria)
- Merge tsens-common into the tsens driver (Amit Kucheria)
- Fix platform dependency for the Qoriq driver (Geert Uytterhoeven)
- Clean up the rcar_thermal_update_temp() function in the rcar thermal driver
(Niklas Söderlund)
- Fix the TMSAR register for the TMUv2 on the Qoriq platform (Yuantian Tang)
- Export GDDV, OEM vendor variables, and don't require IDSP for the int340x
thermal driver - trivial conflicts fixed (Matthew Garrett)
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Merge tag 'thermal-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal updates from Daniel Lezcano:
- Add the hwmon support on the i.MX SC (Anson Huang)
- Thermal framework cleanups (self-encapsulation, pointless stubs,
private structures) (Daniel Lezcano)
- Use the PM QoS frequency changes for the devfreq cooling device
(Matthias Kaehlcke)
- Remove duplicate error messages from platform_get_irq() error
handling (Markus Elfring)
- Add support for the bandgap sensors (Keerthy)
- Statically initialize .get_mode/.set_mode ops (Andrzej Pietrasiewicz)
- Add Renesas R-Car maintainer entry (Niklas Söderlund)
- Fix error checking after calling ti_bandgap_get_sensor_data() for the
TI SoC thermal (Sudip Mukherjee)
- Add latency constraint for the idle injection, the DT binding and the
change the registering function (Daniel Lezcano)
- Convert the thermal framework binding to the Yaml schema (Amit
Kucheria)
- Replace zero-length array with flexible-array on i.MX 8MM (Gustavo A.
R. Silva)
- Thermal framework cleanups (alphabetic order for heads, replace
module.h by export.h, make file naming consistent) (Amit Kucheria)
- Merge tsens-common into the tsens driver (Amit Kucheria)
- Fix platform dependency for the Qoriq driver (Geert Uytterhoeven)
- Clean up the rcar_thermal_update_temp() function in the rcar thermal
driver (Niklas Söderlund)
- Fix the TMSAR register for the TMUv2 on the Qoriq platform (Yuantian
Tang)
- Export GDDV, OEM vendor variables, and don't require IDSP for the
int340x thermal driver - trivial conflicts fixed (Matthew Garrett)
* tag 'thermal-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (48 commits)
thermal/int340x_thermal: Don't require IDSP to exist
thermal/int340x_thermal: Export OEM vendor variables
thermal/int340x_thermal: Export GDDV
thermal: qoriq: Update the settings for TMUv2
thermal: rcar_thermal: Clean up rcar_thermal_update_temp()
thermal: qoriq: Add platform dependencies
drivers: thermal: tsens: Merge tsens-common.c into tsens.c
thermal/of: Rename of-thermal.c
thermal/governors: Prefix all source files with gov_
thermal/drivers/user_space: Sort headers alphabetically
thermal/drivers/of-thermal: Sort headers alphabetically
thermal/drivers/cpufreq_cooling: Replace module.h with export.h
thermal/drivers/cpufreq_cooling: Sort headers alphabetically
thermal/drivers/clock_cooling: Include export.h
thermal/drivers/clock_cooling: Sort headers alphabetically
thermal/drivers/thermal_hwmon: Include export.h
thermal/drivers/thermal_hwmon: Sort headers alphabetically
thermal/drivers/thermal_helpers: Include export.h
thermal/drivers/thermal_helpers: Sort headers alphabetically
thermal/core: Replace module.h with export.h
...
Nothing too exciting for this cycle. A couple of fixes across the board,
and Lee volunteered to help with patch review.
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Merge tag 'pwm/for-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"Nothing too exciting for this cycle. A couple of fixes across the
board, and Lee volunteered to help with patch review"
* tag 'pwm/for-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: Add missing "CONFIG_" prefix
MAINTAINERS: Add Lee Jones as reviewer for the PWM subsystem
pwm: imx27: Fix rounding behavior
pwm: rockchip: Simplify rockchip_pwm_get_state()
pwm: img: Call pm_runtime_put() in pm_runtime_get_sync() failed case
pwm: tegra: Support dynamic clock frequency configuration
pwm: jz4740: Add support for the JZ4725B
pwm: jz4740: Make PWM start with the active part
pwm: jz4740: Enhance precision in calculation of duty cycle
pwm: jz4740: Drop dependency on MACH_INGENIC
pwm: lpss: Fix get_state runtime-pm reference handling
pwm: sun4i: Support direct clock output on Allwinner A64
pwm: Add support for Azoteq IQS620A PWM generator
dt-bindings: pwm: rcar: add r8a77961 support
pwm: Add missing '\n' in log messages
- Another round of whack-a-mole removing 'allOf', redundant cases of
'maxItems' and incorrect 'reg' sizes
- Fix support for yaml.h in non-standard paths
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Merge tag 'devicetree-fixes-for-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fixes from Rob Herring:
- Another round of whack-a-mole removing 'allOf', redundant cases of
'maxItems' and incorrect 'reg' sizes
- Fix support for yaml.h in non-standard paths
* tag 'devicetree-fixes-for-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: Remove redundant 'maxItems'
dt-bindings: Fix more incorrect 'reg' property sizes in examples
dt-bindings: phy: qcom: Fix missing 'ranges' and example addresses
dt-bindings: Remove more cases of 'allOf' containing a '$ref'
scripts/dtc: use pkg-config to include <yaml.h> in non-standard path
There's no need to specify 'maxItems' with the same value as the number
of entries in 'items'. A meta-schema update will catch future cases.
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Anson Huang <Anson.Huang@nxp.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-pwm@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Reviewed-by: Stephen Boyd <sboyd@kernel.org> # clk
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
KCSAN is a dynamic race detector, which relies on compile-time
instrumentation, and uses a watchpoint-based sampling approach to detect
races.
The feature was under development for quite some time and has already found
legitimate bugs.
Unfortunately it comes with a limitation, which was only understood late in
the development cycle:
It requires an up to date CLANG-11 compiler
CLANG-11 is not yet released (scheduled for June), but it's the only
compiler today which handles the kernel requirements and especially the
annotations of functions to exclude them from KCSAN instrumentation
correctly.
These annotations really need to work so that low level entry code and
especially int3 text poke handling can be completely isolated.
A detailed discussion of the requirements and compiler issues can be found
here:
https://lore.kernel.org/lkml/CANpmjNMTsY_8241bS7=XAfqvZHFLrVEkv_uM4aDUWE_kh3Rvbw@mail.gmail.com/
We came to the conclusion that trying to work around compiler limitations
and bugs again would end up in a major trainwreck, so requiring a working
compiler seemed to be the best choice.
For Continous Integration purposes the compiler restriction is manageable
and that's where most xxSAN reports come from.
For a change this limitation might make GCC people actually look at their
bugs. Some issues with CSAN in GCC are 7 years old and one has been 'fixed'
3 years ago with a half baken solution which 'solved' the reported issue
but not the underlying problem.
The KCSAN developers also ponder to use a GCC plugin to become independent,
but that's not something which will show up in a few days.
Blocking KCSAN until wide spread compiler support is available is not a
really good alternative because the continuous growth of lockless
optimizations in the kernel demands proper tooling support.
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Merge tag 'locking-kcsan-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull the Kernel Concurrency Sanitizer from Thomas Gleixner:
"The Kernel Concurrency Sanitizer (KCSAN) is a dynamic race detector,
which relies on compile-time instrumentation, and uses a
watchpoint-based sampling approach to detect races.
The feature was under development for quite some time and has already
found legitimate bugs.
Unfortunately it comes with a limitation, which was only understood
late in the development cycle:
It requires an up to date CLANG-11 compiler
CLANG-11 is not yet released (scheduled for June), but it's the only
compiler today which handles the kernel requirements and especially
the annotations of functions to exclude them from KCSAN
instrumentation correctly.
These annotations really need to work so that low level entry code and
especially int3 text poke handling can be completely isolated.
A detailed discussion of the requirements and compiler issues can be
found here:
https://lore.kernel.org/lkml/CANpmjNMTsY_8241bS7=XAfqvZHFLrVEkv_uM4aDUWE_kh3Rvbw@mail.gmail.com/
We came to the conclusion that trying to work around compiler
limitations and bugs again would end up in a major trainwreck, so
requiring a working compiler seemed to be the best choice.
For Continous Integration purposes the compiler restriction is
manageable and that's where most xxSAN reports come from.
For a change this limitation might make GCC people actually look at
their bugs. Some issues with CSAN in GCC are 7 years old and one has
been 'fixed' 3 years ago with a half baken solution which 'solved' the
reported issue but not the underlying problem.
The KCSAN developers also ponder to use a GCC plugin to become
independent, but that's not something which will show up in a few
days.
Blocking KCSAN until wide spread compiler support is available is not
a really good alternative because the continuous growth of lockless
optimizations in the kernel demands proper tooling support"
* tag 'locking-kcsan-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (76 commits)
compiler_types.h, kasan: Use __SANITIZE_ADDRESS__ instead of CONFIG_KASAN to decide inlining
compiler.h: Move function attributes to compiler_types.h
compiler.h: Avoid nested statement expression in data_race()
compiler.h: Remove data_race() and unnecessary checks from {READ,WRITE}_ONCE()
kcsan: Update Documentation to change supported compilers
kcsan: Remove 'noinline' from __no_kcsan_or_inline
kcsan: Pass option tsan-instrument-read-before-write to Clang
kcsan: Support distinguishing volatile accesses
kcsan: Restrict supported compilers
kcsan: Avoid inserting __tsan_func_entry/exit if possible
ubsan, kcsan: Don't combine sanitizer with kcov on clang
objtool, kcsan: Add kcsan_disable_current() and kcsan_enable_current_nowarn()
kcsan: Add __kcsan_{enable,disable}_current() variants
checkpatch: Warn about data_race() without comment
kcsan: Use GFP_ATOMIC under spin lock
Improve KCSAN documentation a bit
kcsan: Make reporting aware of KCSAN tests
kcsan: Fix function matching in report
kcsan: Change data_race() to no longer require marking racing accesses
kcsan: Move kcsan_{disable,enable}_current() to kcsan-checks.h
...
In some rare cases, for input data over 32 KB, lzo-rle could encode two
different inputs to the same compressed representation, so that
decompression is then ambiguous (i.e. data may be corrupted - although
zram is not affected because it operates over 4 KB pages).
This modifies the compressor without changing the decompressor or the
bitstream format, such that:
- there is no change to how data produced by the old compressor is
decompressed
- an old decompressor will correctly decode data from the updated
compressor
- performance and compression ratio are not affected
- we avoid introducing a new bitstream format
In testing over 12.8M real-world files totalling 903 GB, three files
were affected by this bug. I also constructed 37M semi-random 64 KB
files totalling 2.27 TB, and saw no affected files. Finally I tested
over files constructed to contain each of the ~1024 possible bad input
sequences; for all of these cases, updated lzo-rle worked correctly.
There is no significant impact to performance or compression ratio.
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Dave Rodgman <dave.rodgman@arm.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200507100203.29785-1-dave.rodgman@arm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The examples template is a 'simple-bus' with a size of 1 cell for
had between 2 and 4 cells which really only errors on I2C or SPI type
devices with a single cell.
The easiest fix in most cases is to change the 'reg' property to 1 cell
for address and size.
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Ezequiel Garcia <ezequiel@collabora.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: linux-rockchip@lists.infradead.org
Cc: linux-media@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Cc: netdev@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
The QCom QMP PHY bindings have child nodes with translatable (MMIO)
addresses, so a 'ranges' property is required in the parent node.
Additionally, the examples default to 1 address and size cell, so let's
fix that, too.
Fixes: ccf51c1ced ("dt-bindings: phy: qcom,qmp: Convert QMP PHY bindings to yaml")
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Another round of 'allOf' removals that came in this cycle.
json-schema versions draft7 and earlier have a weird behavior in that
any keywords combined with a '$ref' are ignored (silently). The correct
form was to put a '$ref' under an 'allOf'. This behavior is now changed
in the 2019-09 json-schema spec and '$ref' can be mixed with other
keywords. The json-schema library doesn't yet support this, but the
tooling now does a fixup for this and either way works.
This has been a constant source of review comments, so let's change this
treewide so everyone copies the simpler syntax.
Signed-off-by: Rob Herring <robh@kernel.org>
new controller driver for IPCC
reorg the of_device data
add support for ipq6018 platform
- spreadtrum:
new sprd controller driver
- imx:
implement suspend/resume PM support
- Misc :
make pcc driver struct as static
fix return value in imx_mu_scu
disable clock before bailout in imx probe
remove duplicate error mssg in zynqmp probe
fix header size in imx.scu
check for null instead of is-err in zynqmp
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Merge tag 'mailbox-v5.8' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
"qcom:
- new controller driver for IPCC
- reorg the of_device data
- add support for ipq6018 platform
spreadtrum:
- new sprd controller driver
imx:
- implement suspend/resume PM support
misc:
- make pcc driver struct static
- fix return value in imx_mu_scu
- disable clock before bailout in imx probe
- remove duplicate error mssg in zynqmp probe
- fix header size in imx.scu
- check for null instead of is-err in zynqmp"
* tag 'mailbox-v5.8' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: qcom: Add ipq6018 apcs compatible
mailbox: qcom: Add clock driver name in apcs mailbox driver data
dt-bindings: mailbox: Add YAML schemas for QCOM APCS global block
mailbox: imx: ONLY IPC MU needs IRQF_NO_SUSPEND flag
mailbox: imx: Add runtime PM callback to handle MU clocks
mailbox: imx: Add context save/restore for suspend/resume
MAINTAINERS: Add entry for Qualcomm IPCC driver
mailbox: Add support for Qualcomm IPCC
dt-bindings: mailbox: Add devicetree binding for Qcom IPCC
mailbox: zynqmp-ipi: Fix NULL vs IS_ERR() check in zynqmp_ipi_mbox_probe()
mailbox: imx-mailbox: fix scu msg header size check
mailbox: sprd: Add Spreadtrum mailbox driver
dt-bindings: mailbox: Add the Spreadtrum mailbox documentation
mailbox: ZynqMP IPI: Delete an error message in zynqmp_ipi_probe()
mailbox: imx: Disable the clock on devm_mbox_controller_register() failure
mailbox: imx: Fix return in imx_mu_scu_xlate()
mailbox: imx: Support runtime PM
mailbox: pcc: make pcc_mbox_driver static
Here are last-minute fixes gathered before merge window close;
a few fixes are for the core while the rest majority are driver
fixes.
* PCM locking annotation fixes and the possible self-lock fix
* ASoC DPCM regression fixes with multi-CPU DAI
* A fix for inconsistent resume from system-PM on USB-audio
* Improved runtime-PM handling with multiple USB interfaces
* Quirks for HD-audio and USB-audio
* Hardened firmware handling in max98390 codec
* A couple of fixes for meson
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Merge tag 'sound-fix-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are last-minute fixes gathered before merge window close; a few
fixes are for the core while the rest majority are driver fixes.
- PCM locking annotation fixes and the possible self-lock fix
- ASoC DPCM regression fixes with multi-CPU DAI
- A fix for inconsistent resume from system-PM on USB-audio
- Improved runtime-PM handling with multiple USB interfaces
- Quirks for HD-audio and USB-audio
- Hardened firmware handling in max98390 codec
- A couple of fixes for meson"
* tag 'sound-fix-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
ASoC: rt5645: Add platform-data for Asus T101HA
ASoC: Intel: bytcr_rt5640: Add quirk for Toshiba Encore WT10-A tablet
ASoC: SOF: nocodec: conditionally set dpcm_capture/dpcm_playback flags
ASoC: Intel: boards: replace capture_only by dpcm_capture
ASoC: core: only convert non DPCM link to DPCM link
ASoC: soc-pcm: dpcm: fix playback/capture checks
ASoC: meson: add missing free_irq() in error path
ALSA: pcm: disallow linking stream to itself
ALSA: usb-audio: Manage auto-pm of all bundled interfaces
ALSA: hda/realtek - add a pintbl quirk for several Lenovo machines
ALSA: pcm: fix snd_pcm_link() lockdep splat
ALSA: usb-audio: Use the new macro for HP Dock rename quirks
ALSA: usb-audio: Add vendor, product and profile name for HP Thunderbolt Dock
ALSA: emu10k1: delete an unnecessary condition
dt-bindings: ASoc: Fix tdm-slot documentation spelling error
ASoC: meson: fix memory leak of links if allocation of ldata fails
ALSA: usb-audio: Fix inconsistent card PM state after resume
ASoC: max98390: Fix potential crash during param fw loading
ASoC: max98390: Fix incorrect printf qualifier
ASoC: fsl-asoc-card: Defer probe when fail to find codec device
...
Document change in required compiler version for KCSAN, and remove the
now redundant note about __no_kcsan and inlining problems with older
compilers.
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200521142047.169334-8-elver@google.com
Merge the state of the locking kcsan branch before the read/write_once()
and the atomics modifications got merged.
Squash the fallout of the rebase on top of the read/write once and atomic
fallback work into the merge. The history of the original branch is
preserved in tag locking-kcsan-2020-06-02.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
- Keep nfsd clients from unnecessarily breaking their own delegations:
Note this requires a small kthreadd addition, discussed at:
https://lore.kernel.org/r/1588348912-24781-1-git-send-email-bfields@redhat.com
The result is Tejun Heo's suggestion, and he was OK with this going
through my tree.
- Patch nfsd/clients/ to display filenames, and to fix byte-order when
displaying stateid's.
- fix a module loading/unloading bug, from Neil Brown.
- A big series from Chuck Lever with RPC/RDMA and tracing improvements,
and lay some groundwork for RPC-over-TLS.
Note Stephen Rothwell spotted two conflicts in linux-next. Both should
be straightforward:
include/trace/events/sunrpc.h
https://lore.kernel.org/r/20200529105917.50dfc40f@canb.auug.org.au
net/sunrpc/svcsock.c
https://lore.kernel.org/r/20200529131955.26c421db@canb.auug.org.au
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Merge tag 'nfsd-5.8' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"Highlights:
- Keep nfsd clients from unnecessarily breaking their own
delegations.
Note this requires a small kthreadd addition. The result is Tejun
Heo's suggestion (see link), and he was OK with this going through
my tree.
- Patch nfsd/clients/ to display filenames, and to fix byte-order
when displaying stateid's.
- fix a module loading/unloading bug, from Neil Brown.
- A big series from Chuck Lever with RPC/RDMA and tracing
improvements, and lay some groundwork for RPC-over-TLS"
Link: https://lore.kernel.org/r/1588348912-24781-1-git-send-email-bfields@redhat.com
* tag 'nfsd-5.8' of git://linux-nfs.org/~bfields/linux: (49 commits)
sunrpc: use kmemdup_nul() in gssp_stringify()
nfsd: safer handling of corrupted c_type
nfsd4: make drc_slab global, not per-net
SUNRPC: Remove unreachable error condition in rpcb_getport_async()
nfsd: Fix svc_xprt refcnt leak when setup callback client failed
sunrpc: clean up properly in gss_mech_unregister()
sunrpc: svcauth_gss_register_pseudoflavor must reject duplicate registrations.
sunrpc: check that domain table is empty at module unload.
NFSD: Fix improperly-formatted Doxygen comments
NFSD: Squash an annoying compiler warning
SUNRPC: Clean up request deferral tracepoints
NFSD: Add tracepoints for monitoring NFSD callbacks
NFSD: Add tracepoints to the NFSD state management code
NFSD: Add tracepoints to NFSD's duplicate reply cache
SUNRPC: svc_show_status() macro should have enum definitions
SUNRPC: Restructure svc_udp_recvfrom()
SUNRPC: Refactor svc_recvfrom()
SUNRPC: Clean up svc_release_skb() functions
SUNRPC: Refactor recvfrom path dealing with incomplete TCP receives
SUNRPC: Replace dprintk() call sites in TCP receive path
...
Remove description of non-existing v4l2_subdev.nevents and replace the
undefined flag V4L2_SUBDEV_USES_EVENTS by the correct flag
V4L2_SUBDEV_FL_HAS_EVENTS, which is already documented in v4l2_subdev.flags
Fixes: commit 02adb1cc76 ("[media] v4l: subdev: Events support")
Signed-off-by: Michael Rodin <mrodin@de.adit-jv.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This adds the same per-file/per-directory DAX support for ext4 as was
done for xfs, now that we finally have consensus over what the
interface should be.
A new file snuck into the tree after all existing documentation
was converted to RST. Convert sja1105's devlink info and move
it where the rest of the drivers are documented.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We need an empty line before list stats, otherwise first point
will be smooshed into the paragraph. Inside tables text must
start at the same offset in the cell, otherwise sphinx thinks
it's a new indented block.
Documentation/networking/dsa/sja1105.rst:108: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/networking/dsa/sja1105.rst:112: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/networking/dsa/sja1105.rst:245: WARNING: Unexpected indentation.
Documentation/networking/dsa/sja1105.rst:246: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/networking/dsa/sja1105.rst:253: WARNING: Unexpected indentation.
Documentation/networking/dsa/sja1105.rst:254: WARNING: Block quote ends without a blank line; unexpected unindent.
Fixes: a20bc43bfb ("docs: net: dsa: sja1105: document the best_effort_vlan_filtering option")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sphinx appears to get upset at extra spaces at the end of a literal:
Documentation/networking/ethtool-netlink.rst:1032: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1034: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1036: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1089: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1091: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1093: WARNING: Inline literal start-string without end-string.
Fixes: f2bc8ad31a ("net: ethtool: Allow PHY cable test TDR data to configured")
Fixes: a331172b15 ("net: ethtool: Add attributes for cable test TDR data")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull READ/WRITE_ONCE rework from Will Deacon:
"This the READ_ONCE rework I've been working on for a while, which
bumps the minimum GCC version and improves code-gen on arm64 when
stack protector is enabled"
[ Side note: I'm _really_ tempted to raise the minimum gcc version to
4.9, so that we can just say that we require _Generic() support.
That would allow us to more cleanly handle a lot of the cases where we
depend on very complex macros with 'sizeof' or __builtin_choose_expr()
with __builtin_types_compatible_p() etc.
This branch has a workaround for sparse not handling _Generic(),
either, but that was already fixed in the sparse development branch,
so it's really just gcc-4.9 that we'd require. - Linus ]
* 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux:
compiler_types.h: Use unoptimized __unqual_scalar_typeof for sparse
compiler_types.h: Optimize __unqual_scalar_typeof compilation time
compiler.h: Enforce that READ_ONCE_NOCHECK() access size is sizeof(long)
compiler-types.h: Include naked type in __pick_integer_type() match
READ_ONCE: Fix comment describing 2x32-bit atomicity
gcov: Remove old GCC 3.4 support
arm64: barrier: Use '__unqual_scalar_typeof' for acquire/release macros
locking/barriers: Use '__unqual_scalar_typeof' for load-acquire macros
READ_ONCE: Drop pointer qualifiers when reading from scalar types
READ_ONCE: Enforce atomicity for {READ,WRITE}_ONCE() memory accesses
READ_ONCE: Simplify implementations of {READ,WRITE}_ONCE()
arm64: csum: Disable KASAN for do_csum()
fault_inject: Don't rely on "return value" from WRITE_ONCE()
net: tls: Avoid assigning 'const' pointer to non-const pointer
netfilter: Avoid assigning 'const' pointer to non-const pointer
compiler/gcc: Raise minimum GCC version for kernel builds to 4.8
HTTP links to HTTPS that had to be yanked and redone before the first
pull.
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Merge tag 'docs-5.8-2' of git://git.lwn.net/linux
Pull more documentation updates from Jonathan Corbet:
"A handful of late-arriving docs fixes, along with a patch changing a
lot of HTTP links to HTTPS that had to be yanked and redone before the
first pull"
* tag 'docs-5.8-2' of git://git.lwn.net/linux:
docs/memory-barriers.txt/kokr: smp_mb__{before,after}_atomic(): update Documentation
Documentation: devres: add missing entry for devm_platform_get_and_ioremap_resource()
Replace HTTP links with HTTPS ones: documentation
docs: it_IT: address invalid reference warnings
doc: zh_CN: use doc reference to resolve undefined label warning
docs: Update the location of the LF NDA program
docs: dev-tools: coccinelle: underlines
- Add support for interconnect bandwidth to the OPP core (Georgi
Djakov, Saravana Kannan, Sibi Sankar, Viresh Kumar).
- Add support for regulator enable/disable to the OPP core (Kamil
Konieczny).
- Add boost support to the CPPC cpufreq driver (Xiongfeng Wang).
- Make the tegra186 cpufreq driver set the
CPUFREQ_NEED_INITIAL_FREQ_CHECK flag (Mian Yousaf Kaukab).
- Prevent the ACPI power management from using power resources
with devices where the list of power resources for power state
D0 (full power) is missing (Rafael Wysocki).
- Annotate a hibernation-related function with __init (Christophe
JAILLET).
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Merge tag 'pm-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are operating performance points (OPP) framework updates mostly,
including support for interconnect bandwidth in the OPP core, plus a
few cpufreq changes, including boost support in the CPPC cpufreq
driver, an ACPI device power management fix and a hibernation code
cleanup.
Specifics:
- Add support for interconnect bandwidth to the OPP core (Georgi
Djakov, Saravana Kannan, Sibi Sankar, Viresh Kumar).
- Add support for regulator enable/disable to the OPP core (Kamil
Konieczny).
- Add boost support to the CPPC cpufreq driver (Xiongfeng Wang).
- Make the tegra186 cpufreq driver set the
CPUFREQ_NEED_INITIAL_FREQ_CHECK flag (Mian Yousaf Kaukab).
- Prevent the ACPI power management from using power resources with
devices where the list of power resources for power state D0 (full
power) is missing (Rafael Wysocki).
- Annotate a hibernation-related function with __init (Christophe
JAILLET)"
* tag 'pm-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Avoid using power resources if there are none for D0
cpufreq: CPPC: add SW BOOST support
cpufreq: change '.set_boost' to act on one policy
PM: hibernate: Add __init annotation to swsusp_header_init()
opp: Don't parse icc paths unnecessarily
opp: Remove bandwidth votes when target_freq is zero
opp: core: add regulators enable and disable
opp: Reorder the code for !target_freq case
opp: Expose bandwidth information via debugfs
cpufreq: dt: Add support for interconnect bandwidth scaling
opp: Update the bandwidth on OPP frequency changes
opp: Add sanity checks in _read_opp_key()
opp: Add support for parsing interconnect bandwidth
cpufreq: tegra186: add CPUFREQ_NEED_INITIAL_FREQ_CHECK flag
OPP: Add helpers for reading the binding properties
dt-bindings: opp: Introduce opp-peak-kBps and opp-avg-kBps bindings
Pull input updates from Dmitry Torokhov:
- a new driver for the Azoteq IQS269A capacitive touch controller
- a new driver for the Cypress CY8CTMA140 touchscreen
- updates to Elan and ft5x06 touchscreen drivers
- assorted driver fixes
- msm-vibrator has been removed as we have a more generic solution
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (28 commits)
Input: adi - work around module name confict
Input: iqs269a - add missing I2C dependency
Input: elants - refactor elants_i2c_execute_command()
Input: elants - override touchscreen info with DT properties
Input: elants - remove unused axes
Input: add support for Azoteq IQS269A
dt-bindings: input: Add bindings for Azoteq IQS269A
Input: imx_sc_key - use devm_add_action_or_reset() to handle all cleanups
Input: remove msm-vibrator driver
dt-bindings: Input: remove msm-vibrator
Input: elants_i2c - provide an attribute to show calibration count
Input: introduce input_mt_report_slot_inactive()
dt-bindings: input: touchscreen: elants_i2c: convert to YAML
Input: add driver for the Cypress CY8CTMA140 touchscreen
dt-bindings: touchscreen: Add CY8CTMA140 bindings
Input: edt-ft5x06 - prefer asynchronous probe
Input: edt-ft5x06 - improve power management operations
Input: edt-ft5x06 - move parameter restore into helper
Input: edt-ft5x06 - fix get_default register write access
Input: atkbd - receive and use physcode->keycode mapping from FW
...
* partition parser: Support MTD names containing one or more colons.
* mtdblock: clear cache_state to avoid writing to bad blocks repeatedly.
Raw NAND core changes:
* Stop using nand_release(), patched all drivers.
* Give more information about the ECC weakness when not matching the
chip's requirement.
* MAINTAINERS updates.
* Support emulated SLC mode on MLC NANDs.
* Support "constrained" controllers, adapt the core and ONFI/JEDEC
table parsing and Micron's code.
* Take check_only into account.
* Add an invalid ECC mode to discriminate with valid ones.
* Return an enum from of_get_nand_ecc_algo().
* Drop OOB_FIRST placement scheme.
* Introduce nand_extract_bits().
* Ensure a consistent bitflips numbering.
* BCH lib:
- Allow easy bit swapping.
- Rework a little bit the exported function names.
* Fix nand_gpio_waitrdy().
* Propage CS selection to sub operations.
* Add a NAND_NO_BBM_QUIRK flag.
* Give the possibility to verify a read operation is supported.
* Add a helper to check supported operations.
* Avoid indirect access to ->data_buf().
* Rename the use_bufpoi variables.
* Fix comments about the use of bufpoi.
* Rename a NAND chip option.
* Reorder the nand_chip->options flags.
* Translate obscure bitfields into readable macros.
* Timings:
- Fix default values.
- Add mode information to the timings structure.
Raw NAND controller driver changes:
* Fixed many error paths.
* Arasan
- New driver
* Au1550nd:
- Various cleanups
- Migration to ->exec_op()
* brcmnand:
- Misc cleanup.
- Support v2.1-v2.2 controllers.
- Remove unused including <linux/version.h>.
- Correctly verify erased pages.
- Fix Hamming OOB layout.
* Cadence
- Make cadence_nand_attach_chip static.
* Cafe:
- Set the NAND_NO_BBM_QUIRK flag
* cmx270:
- Remove this controller driver.
* cs553x:
- Misc cleanup
- Migration to ->exec_op()
* Davinci:
- Misc cleanup.
- Migration to ->exec_op()
* Denali:
- Add more delays before latching incoming data
* Diskonchip:
- Misc cleanup
- Migration to ->exec_op()
* Fsmc:
- Change to non-atomic bit operations.
* GPMI:
- Use nand_extract_bits()
- Fix runtime PM imbalance.
* Ingenic:
- Migration to exec_op()
- Fix the RB gpio active-high property on qi, lb60
- Make qi_lb60_ooblayout_ops static.
* Marvell:
- Misc cleanup and small fixes
* Nandsim:
- Fix the error paths, driver wide.
* Omap_elm:
- Fix runtime PM imbalance.
* STM32_FMC2:
- Misc cleanups (error cases, comments, timeout valus, cosmetic
changes).
SPI NOR core changes:
* Add, update support and fix few flashes.
* Prepare BFPT parsing for JESD216 rev D.
* Kernel doc fixes.
CFI changes:
* Support the absence of protection registers for Intel CFI flashes.
* Replace zero-length array with flexible-arrays.
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Merge tag 'mtd/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Richard Weinberger:
"MTD core changes:
- partition parser: Support MTD names containing one or more colons.
- mtdblock: clear cache_state to avoid writing to bad blocks
repeatedly.
Raw NAND core changes:
- Stop using nand_release(), patched all drivers.
- Give more information about the ECC weakness when not matching the
chip's requirement.
- MAINTAINERS updates.
- Support emulated SLC mode on MLC NANDs.
- Support "constrained" controllers, adapt the core and ONFI/JEDEC
table parsing and Micron's code.
- Take check_only into account.
- Add an invalid ECC mode to discriminate with valid ones.
- Return an enum from of_get_nand_ecc_algo().
- Drop OOB_FIRST placement scheme.
- Introduce nand_extract_bits().
- Ensure a consistent bitflips numbering.
- BCH lib:
- Allow easy bit swapping.
- Rework a little bit the exported function names.
- Fix nand_gpio_waitrdy().
- Propage CS selection to sub operations.
- Add a NAND_NO_BBM_QUIRK flag.
- Give the possibility to verify a read operation is supported.
- Add a helper to check supported operations.
- Avoid indirect access to ->data_buf().
- Rename the use_bufpoi variables.
- Fix comments about the use of bufpoi.
- Rename a NAND chip option.
- Reorder the nand_chip->options flags.
- Translate obscure bitfields into readable macros.
- Timings:
- Fix default values.
- Add mode information to the timings structure.
Raw NAND controller driver changes:
- Fixed many error paths.
- Arasan
- New driver
- Au1550nd:
- Various cleanups
- Migration to ->exec_op()
- brcmnand:
- Misc cleanup.
- Support v2.1-v2.2 controllers.
- Remove unused including <linux/version.h>.
- Correctly verify erased pages.
- Fix Hamming OOB layout.
- Cadence
- Make cadence_nand_attach_chip static.
- Cafe:
- Set the NAND_NO_BBM_QUIRK flag
- cmx270:
- Remove this controller driver.
- cs553x:
- Misc cleanup
- Migration to ->exec_op()
- Davinci:
- Misc cleanup.
- Migration to ->exec_op()
- Denali:
- Add more delays before latching incoming data
- Diskonchip:
- Misc cleanup
- Migration to ->exec_op()
- Fsmc:
- Change to non-atomic bit operations.
- GPMI:
- Use nand_extract_bits()
- Fix runtime PM imbalance.
- Ingenic:
- Migration to exec_op()
- Fix the RB gpio active-high property on qi, lb60
- Make qi_lb60_ooblayout_ops static.
- Marvell:
- Misc cleanup and small fixes
- Nandsim:
- Fix the error paths, driver wide.
- Omap_elm:
- Fix runtime PM imbalance.
- STM32_FMC2:
- Misc cleanups (error cases, comments, timeout valus, cosmetic
changes).
SPI NOR core changes:
- Add, update support and fix few flashes.
- Prepare BFPT parsing for JESD216 rev D.
- Kernel doc fixes.
CFI changes:
- Support the absence of protection registers for Intel CFI flashes.
- Replace zero-length array with flexible-arrays"
* tag 'mtd/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (208 commits)
mtd: clear cache_state to avoid writing to bad blocks repeatedly
mtd: parser: cmdline: Support MTD names containing one or more colons
mtd: physmap_of_gemini: remove defined but not used symbol 'syscon_match'
mtd: rawnand: Add an invalid ECC mode to discriminate with valid ones
mtd: rawnand: Return an enum from of_get_nand_ecc_algo()
mtd: rawnand: Drop OOB_FIRST placement scheme
mtd: rawnand: Avoid a typedef
mtd: Fix typo in mtd_ooblayout_set_databytes() description
mtd: rawnand: Stop using nand_release()
mtd: rawnand: nandsim: Reorganize ns_cleanup_module()
mtd: rawnand: nandsim: Rename a label in ns_init_module()
mtd: rawnand: nandsim: Manage lists on error in ns_init_module()
mtd: rawnand: nandsim: Fix the label pointing on nand_cleanup()
mtd: rawnand: nandsim: Free erase_block_wear on error
mtd: rawnand: nandsim: Use an additional label when freeing the nandsim object
mtd: rawnand: nandsim: Stop using nand_release()
mtd: rawnand: nandsim: Free the partition names in ns_free()
mtd: rawnand: nandsim: Free the allocated device on error in ns_init()
mtd: rawnand: nandsim: Free partition names on error in ns_init()
mtd: rawnand: nandsim: Fix the two ns_alloc_device() error paths
...
function that isn't used anymore. Otherwise the main new thing for the common
clk framework is that it is selectable in the Kconfig language now. Hopefully
this will let clk drivers and clk consumers be testable on more than the
architectures that support the clk framework. The goal is to introduce some
Kunit tests for the framework.
Outside of the core framework we have the usual set of various driver updates
and non-critical fixes. The dirstat shows that the new Baikal-T1 driver is the
largest addition this time around in terms of lines of code. After that the x86
(Intel), Qualcomm, and Mediatek drivers introduce many lines to support new or
upcoming SoCs. After that the dirstat shows the usual suspects working on their
SoC support by fixing minor bugs, correcting data and converting some of their
DT bindings to YAML.
Core:
- Allow the COMMON_CLK config to be selectable
New Drivers:
- Clk driver for Baikal-T1 SoCs
- Mediatek MT6765 clock support
- Support for Intel Agilex clks
- Add support for X1830 and X1000 Ingenic SoC clk controllers
- Add support for the new Renesas RZ/G1H (R8A7742) SoC
- Add support for Qualcomm's MSM8939 Generic Clock Controller
Updates:
- Support IDT VersaClock 5P49V5925
- Bunch of updates for HSDK clock generation unit (CGU) driver
- Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs
- Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver
- Enable supply regulators for GPU gdscs on Qualcomm SoCs
- Add support for Si5342, Si5344 and Si5345 chips
- Support custom flags in Xilinx zynq firmware
- Various small fixes to the Xilinx clk driver
- A single minor rounding fix for the legacy Allwinner clock support
- A few patches from Abel Vesa as preparation of adding audiomix clock support
on i.MX
- A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and clk-pllv3
drivers
- Drop dependency on ARM64 for i.MX8M clock driver, to support aarch32 mode on
aarch64 hardware
- A series from Peng Fan to improve i.MX8M clock drivers, using composite
clock for core and bus clk slice
- Set a better parent clock for flexcan on i.MX6UL to support CiA102 defined
bit rates
- A couple changes for EMC frequency scaling on Tegra210
- Support for CPU frequency scaling on Tegra20/Tegra30
- New clk gate for CSI test pattern generator on Tegra210
- Regression fixes for Samsung exynos542x and exynos5433 SoCs
- Use of fallthrough; attribute for Samsung s3c24xx
- Updates and fixup HDMI and video clocks on Meson8b
- Fixup reset polarity on Meson8b
- Fix GPU glitch free mux switch on Meson gx and g12
- A minor fix for the currently unused suspend/resume handling on Renesas RZ/A1 and RZ/A2
- Two more conversions of Renesas DT bindings to json-schema
- Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This time around we have four lines of diff in the core framework,
removing a function that isn't used anymore. Otherwise the main new
thing for the common clk framework is that it is selectable in the
Kconfig language now. Hopefully this will let clk drivers and clk
consumers be testable on more than the architectures that support the
clk framework. The goal is to introduce some Kunit tests for the
framework.
Outside of the core framework we have the usual set of various driver
updates and non-critical fixes. The dirstat shows that the new
Baikal-T1 driver is the largest addition this time around in terms of
lines of code. After that the x86 (Intel), Qualcomm, and Mediatek
drivers introduce many lines to support new or upcoming SoCs. After
that the dirstat shows the usual suspects working on their SoC support
by fixing minor bugs, correcting data and converting some of their DT
bindings to YAML.
Core:
- Allow the COMMON_CLK config to be selectable
New Drivers:
- Clk driver for Baikal-T1 SoCs
- Mediatek MT6765 clock support
- Support for Intel Agilex clks
- Add support for X1830 and X1000 Ingenic SoC clk controllers
- Add support for the new Renesas RZ/G1H (R8A7742) SoC
- Add support for Qualcomm's MSM8939 Generic Clock Controller
Updates:
- Support IDT VersaClock 5P49V5925
- Bunch of updates for HSDK clock generation unit (CGU) driver
- Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs
- Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver
- Enable supply regulators for GPU gdscs on Qualcomm SoCs
- Add support for Si5342, Si5344 and Si5345 chips
- Support custom flags in Xilinx zynq firmware
- Various small fixes to the Xilinx clk driver
- A single minor rounding fix for the legacy Allwinner clock support
- A few patches from Abel Vesa as preparation of adding audiomix
clock support on i.MX
- A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and
clk-pllv3 drivers
- Drop dependency on ARM64 for i.MX8M clock driver, to support
aarch32 mode on aarch64 hardware
- A series from Peng Fan to improve i.MX8M clock drivers, using
composite clock for core and bus clk slice
- Set a better parent clock for flexcan on i.MX6UL to support CiA102
defined bit rates
- A couple changes for EMC frequency scaling on Tegra210
- Support for CPU frequency scaling on Tegra20/Tegra30
- New clk gate for CSI test pattern generator on Tegra210
- Regression fixes for Samsung exynos542x and exynos5433 SoCs
- Use of fallthrough; attribute for Samsung s3c24xx
- Updates and fixup HDMI and video clocks on Meson8b
- Fixup reset polarity on Meson8b
- Fix GPU glitch free mux switch on Meson gx and g12
- A minor fix for the currently unused suspend/resume handling on
Renesas RZ/A1 and RZ/A2
- Two more conversions of Renesas DT bindings to json-schema
- Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (155 commits)
clk: mediatek: Remove ifr{0,1}_cfg_regs structures
clk: baikal-t1: remove redundant assignment to variable 'divider'
clk: baikal-t1: fix spelling mistake "Uncompatible" -> "Incompatible"
dt-bindings: clock: Add a missing include to MMP Audio Clock binding
dt: Add bindings for IDT VersaClock 5P49V5925
clk: vc5: Add support for IDT VersaClock 5P49V6965
clk: Add Baikal-T1 CCU Dividers driver
clk: Add Baikal-T1 CCU PLLs driver
dt-bindings: clk: Add Baikal-T1 CCU Dividers binding
dt-bindings: clk: Add Baikal-T1 CCU PLLs binding
clk: mediatek: assign the initial value to clk_init_data of mtk_mux
clk: mediatek: Add MT6765 clock support
clk: mediatek: add mt6765 clock IDs
dt-bindings: clock: mediatek: document clk bindings vcodecsys for Mediatek MT6765 SoC
dt-bindings: clock: mediatek: document clk bindings mipi0a for Mediatek MT6765 SoC
dt-bindings: clock: mediatek: document clk bindings for Mediatek MT6765 SoC
CLK: HSDK: CGU: add support for 148.5MHz clock
CLK: HSDK: CGU: support PLL bypassing
CLK: HSDK: CGU: check if PLL is bypassed first
clk: clk-si5341: Add support for the Si5345 series
...
kobject:
* Increase number of allowed uevent variables
power-supply core:
* Add power-supply type in uevent
* Cleanup property handling in core
* Make property and usb_type pointers const
* Convert core power-supply DT binding to YAML
* Cleanup HWMON code
* Add new health status "calibration required"
* Add new properties for manufacture date and
capacity error margin
battery drivers:
* new cw2015 battery driver used by pine64 Pinebook Pro laptop
* axp22: blacklist on Meegopad T02
* sc27xx: support current/voltage reading
* max17042: support time-to-empty reading
* simple-battery: add more battery parameters
* bq27xxx: convert DT binding document to YAML
* sbs-battery: add TI BQ20Z65 support, fix technology property, convert
DT binding to YAML, add option to disable charger
broadcasts, add new properties: manufacture date,
capacity error margin, average current, charge current
and voltage and support calibration required health
status
* misc. fixes
charger drivers:
* bq25890: cleanup, implement charge type, precharge current and input
current limiting properties
* bd70528: use new linear range helper library
* bd99954: new charger driver
* mp2629: new charger driver
* misc. fixes
reboot drivers:
* oxnas-restart: introduce new driver
* syscon-reboot: convert DT binding to YAML, add parent syscon device support
* misc. fixes
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Merge tag 'for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"This time there are lots of changes. Quite a few changes to the core,
lots of driver changes and one change to kobject core (with Ack from
Greg).
Summary:
kobject:
- Increase number of allowed uevent variables
power-supply core:
- Add power-supply type in uevent
- Cleanup property handling in core
- Make property and usb_type pointers const
- Convert core power-supply DT binding to YAML
- Cleanup HWMON code
- Add new health status "calibration required"
- Add new properties for manufacture date and capacity error margin
battery drivers:
- new cw2015 battery driver used by pine64 Pinebook Pro laptop
- axp22: blacklist on Meegopad T02
- sc27xx: support current/voltage reading
- max17042: support time-to-empty reading
- simple-battery: add more battery parameters
- bq27xxx: convert DT binding document to YAML
- sbs-battery: add TI BQ20Z65 support, fix technology property,
convert DT binding to YAML, add option to disable charger
broadcasts, add new properties: manufacture date, capacity
error margin, average current, charge current and voltage and
support calibration required health status
- misc fixes
charger drivers:
- bq25890: cleanup, implement charge type, precharge current and
input current limiting properties
- bd70528: use new linear range helper library
- bd99954: new charger driver
- mp2629: new charger driver
- misc fixes
reboot drivers:
- oxnas-restart: introduce new driver
- syscon-reboot: convert DT binding to YAML, add parent syscon device
support
- misc fixes"
* tag 'for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (85 commits)
power: supply: cw2015: Attach OF ID table to the driver
power: reset: gpio-poweroff: add missing '\n' in dev_err()
Revert "power: supply: sbs-battery: simplify read_read_string_data"
Revert "power: supply: sbs-battery: add PEC support"
dt-bindings: power: sbs-battery: Convert to yaml
power: supply: sbs-battery: constify power-supply property array
power: supply: sbs-battery: switch to i2c's probe_new
power: supply: sbs-battery: switch from of_property_* to device_property_*
power: supply: sbs-battery: add ability to disable charger broadcasts
power: supply: sbs-battery: fix idle battery status
power: supply: sbs-battery: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED support
power: supply: sbs-battery: add MANUFACTURE_DATE support
power: supply: sbs-battery: add POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT/VOLTAGE_MAX support
power: supply: sbs-battery: Improve POWER_SUPPLY_PROP_TECHNOLOGY support
power: supply: sbs-battery: add POWER_SUPPLY_PROP_CURRENT_AVG support
power: supply: sbs-battery: add PEC support
power: supply: sbs-battery: simplify read_read_string_data
power: supply: sbs-battery: add POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN support
power: supply: sbs-battery: Add TI BQ20Z65 support
power: supply: core: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED
...
Bunch of updates to drivers like dmatest, dw-edma, ioat,
mmp-tdma and k3-udma along with Renesas binding update to json-schema
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Merge tag 'dmaengine-5.8-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
"A fairly small dmaengine update which includes mostly driver updates
(dmatest, dw-edma, ioat, mmp-tdma and k3-udma) along with Renesas
binding update to json-schema"
* tag 'dmaengine-5.8-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (39 commits)
dmaengine: imx-sdma: initialize all script addresses
dmaengine: ti: k3-udma: Use proper return code in alloc_chan_resources
dmaengine: ti: k3-udma: Remove udma_chan.in_ring_cnt
dmaengine: ti: k3-udma: Add missing dma_sync call for rx flush descriptor
dmaengine: at_xdmac: Replace zero-length array with flexible-array
dmaengine: at_hdmac: Replace zero-length array with flexible-array
dmaengine: qcom: bam_dma: Replace zero-length array with flexible-array
dmaengine: ti: k3-udma: Use PTR_ERR_OR_ZERO() to simplify code
dmaengine: moxart-dma: Drop pointless static qualifier in moxart_probe()
dmaengine: sf-pdma: Simplify the error handling path in 'sf_pdma_probe()'
dmaengine: qcom_hidma: use true,false for bool variable
dmaengine: dw-edma: support local dma device transfer semantics
dmaengine: Fix doc strings to satisfy validation script
dmaengine: Include dmaengine.h into dmaengine.c
dmaengine: dmatest: Describe members of struct dmatest_info
dmaengine: dmatest: Describe members of struct dmatest_params
dmaengine: dmatest: Allow negative timeout value to specify infinite wait
Revert "dmaengine: dmatest: timeout value of -1 should specify infinite wait"
dmaengine: stm32-dma: direct mode support through device tree
dt-bindings: dma: add direct mode support through device tree in stm32-dma
...
The improved paragraph about line lengths contains a sentence with a
duplicate word: there is one "are" at the end of a line, followed by a
second one at the beginning of the next line.
Drop the first one, as that one is part of the longest line.
Fixes: bdc48fa11e ("checkpatch/coding-style: deprecate 80-column warning")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pm-opp:
opp: Don't parse icc paths unnecessarily
opp: Remove bandwidth votes when target_freq is zero
opp: core: add regulators enable and disable
opp: Reorder the code for !target_freq case
opp: Expose bandwidth information via debugfs
cpufreq: dt: Add support for interconnect bandwidth scaling
opp: Update the bandwidth on OPP frequency changes
opp: Add sanity checks in _read_opp_key()
opp: Add support for parsing interconnect bandwidth
interconnect: Remove unused module exit code from core
interconnect: Disallow interconnect core to be built as a module
interconnect: Add of_icc_get_by_index() helper function
OPP: Add helpers for reading the binding properties
dt-bindings: opp: Introduce opp-peak-kBps and opp-avg-kBps bindings
A small pile of fixes that came in during the merge window, the DPCM
fixes from Pierre are the most notable thing here.
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Merge tag 'asoc-fix-v5.8' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.8
A small pile of fixes that came in during the merge window, the DPCM
fixes from Pierre are the most notable thing here.
spi@13000: clock-names: Additional items are not allowed ('pclk' was unexpected)
spi@13000: clock-names: ['core', 'pclk'] is too long
spi@13000: clocks: [[2, 23], [2, 258]] is too long
spi@15000: clock-names: Additional items are not allowed ('pclk' was unexpected)
spi@15000: clock-names: ['core', 'pclk'] is too long
spi@15000: clocks: [[2, 29], [2, 261]] is too long
Conditional schema properties don't overwrite others. Instead of
restrictions have to be validated. So general clock amount is 1-2 and
depending on the actual device type limit the mount to 1 or 2.
Signed-off-by: Alexander Stein <alexander.stein@mailbox.org>
Link: https://lore.kernel.org/r/20200609165527.55183-1-alexander.stein@mailbox.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Merge tag 'fuse-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Fix a rare deadlock in virtiofs
- Fix st_blocks in writeback cache mode
- Fix wrong checks in splice move causing spurious warnings
- Fix a race between a GETATTR request and a FUSE_NOTIFY_INVAL_INODE
notification
- Use rb-tree instead of linear search for pages currently under
writeout by userspace
- Fix copy_file_range() inconsistencies
* tag 'fuse-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: copy_file_range should truncate cache
fuse: fix copy_file_range cache issues
fuse: optimize writepages search
fuse: update attr_version counter on fuse_notify_inval_inode()
fuse: don't check refcount after stealing page
fuse: fix weird page warning
fuse: use dump_page
virtiofs: do not use fuse_fill_super_common() for device installation
fuse: always allow query of st_dev
fuse: always flush dirty data on close(2)
fuse: invalidate inode attr in writeback cache mode
fuse: Update stale comment in queue_interrupt()
fuse: BUG_ON correction in fuse_dev_splice_write()
virtiofs: Add mount option and atime behavior to the doc
virtiofs: schedule blocking async replies in separate worker
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Merge tag 'ovl-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs updates from Miklos Szeredi:
"Fixes:
- Resolve mount option conflicts consistently
- Sync before remount R/O
- Fix file handle encoding corner cases
- Fix metacopy related issues
- Fix an unintialized return value
- Add missing permission checks for underlying layers
Optimizations:
- Allow multipe whiteouts to share an inode
- Optimize small writes by inheriting SB_NOSEC from upper layer
- Do not call ->syncfs() multiple times for sync(2)
- Do not cache negative lookups on upper layer
- Make private internal mounts longterm"
* tag 'ovl-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (27 commits)
ovl: remove unnecessary lock check
ovl: make oip->index bool
ovl: only pass ->ki_flags to ovl_iocb_to_rwf()
ovl: make private mounts longterm
ovl: get rid of redundant members in struct ovl_fs
ovl: add accessor for ofs->upper_mnt
ovl: initialize error in ovl_copy_xattr
ovl: drop negative dentry in upper layer
ovl: check permission to open real file
ovl: call secutiry hook in ovl_real_ioctl()
ovl: verify permissions in ovl_path_open()
ovl: switch to mounter creds in readdir
ovl: pass correct flags for opening real directory
ovl: fix redirect traversal on metacopy dentries
ovl: initialize OVL_UPPERDATA in ovl_lookup()
ovl: use only uppermetacopy state in ovl_lookup()
ovl: simplify setting of origin for index lookup
ovl: fix out of bounds access warning in ovl_check_fb_len()
ovl: return required buffer size for file handles
ovl: sync dirty data when remounting to ro mode
...
The include file for input clock in the example was missing, breaking the
validation.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reported-by: Rob Herring <robh+dt@kernel.org>
Link: https://lore.kernel.org/r/20200605065258.567858-1-lkundrak@v3.sk
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
In this round, we've added some knobs to enhance compression feature and harden
testing environment. In addition, we've fixed several bugs reported from Android
devices such as long discarding latency, device hanging during quota_sync, etc.
Enhancement:
- support lzo-rle algorithm
- add two ioctls to release and reserve blocks for compression
- support partial truncation/fiemap on compressed file
- introduce sysfs entries to attach IO flags explicitly
- add iostat trace point along with read io stat
Bug fix:
- fix long discard latency
- flush quota data by f2fs_quota_sync correctly
- fix to recover parent inode number for power-cut recovery
- fix lz4/zstd output buffer budget
- parse checkpoint mount option correctly
- avoid inifinite loop to wait for flushing node/meta pages
- manage discard space correctly
And some refactoring and clean up patches were added.
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Merge tag 'f2fs-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've added some knobs to enhance compression feature
and harden testing environment. In addition, we've fixed several bugs
reported from Android devices such as long discarding latency, device
hanging during quota_sync, etc.
Enhancements:
- support lzo-rle algorithm
- add two ioctls to release and reserve blocks for compression
- support partial truncation/fiemap on compressed file
- introduce sysfs entries to attach IO flags explicitly
- add iostat trace point along with read io stat
Bug fixes:
- fix long discard latency
- flush quota data by f2fs_quota_sync correctly
- fix to recover parent inode number for power-cut recovery
- fix lz4/zstd output buffer budget
- parse checkpoint mount option correctly
- avoid inifinite loop to wait for flushing node/meta pages
- manage discard space correctly
And some refactoring and clean up patches were added"
* tag 'f2fs-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits)
f2fs: attach IO flags to the missing cases
f2fs: add node_io_flag for bio flags likewise data_io_flag
f2fs: remove unused parameter of f2fs_put_rpages_mapping()
f2fs: handle readonly filesystem in f2fs_ioc_shutdown()
f2fs: avoid utf8_strncasecmp() with unstable name
f2fs: don't return vmalloc() memory from f2fs_kmalloc()
f2fs: fix retry logic in f2fs_write_cache_pages()
f2fs: fix wrong discard space
f2fs: compress: don't compress any datas after cp stop
f2fs: remove unneeded return value of __insert_discard_tree()
f2fs: fix wrong value of tracepoint parameter
f2fs: protect new segment allocation in expand_inode_data
f2fs: code cleanup by removing ifdef macro surrounding
f2fs: avoid inifinite loop to wait for flushing node pages at cp_error
f2fs: flush dirty meta pages when flushing them
f2fs: fix checkpoint=disable:%u%%
f2fs: compress: fix zstd data corruption
f2fs: add compressed/gc data read IO stat
f2fs: fix potential use-after-free issue
f2fs: compress: don't handle non-compressed data in workqueue
...
No new features this release. Mostly clean ups, restructuring and
documentation.
- Have ftrace_bug() show ftrace errors before the WARN, as the WARN will
reboot the box before the error messages are printed if panic_on_warn
is set.
- Have traceoff_on_warn disable tracing sooner (before prints)
- Write a message to the trace buffer that its being disabled when
disable_trace_on_warning() is set.
- Separate out synthetic events from histogram code to let it be used by
other parts of the kernel.
- More documentation on histogram design.
- Other small fixes and clean ups.
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Merge tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"No new features this release. Mostly clean ups, restructuring and
documentation.
- Have ftrace_bug() show ftrace errors before the WARN, as the WARN
will reboot the box before the error messages are printed if
panic_on_warn is set.
- Have traceoff_on_warn disable tracing sooner (before prints)
- Write a message to the trace buffer that its being disabled when
disable_trace_on_warning() is set.
- Separate out synthetic events from histogram code to let it be used
by other parts of the kernel.
- More documentation on histogram design.
- Other small fixes and clean ups"
* tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Remove obsolete PREEMPTIRQ_EVENTS kconfig option
tracing/doc: Fix ascii-art in histogram-design.rst
tracing: Add a trace print when traceoff_on_warning is triggered
ftrace,bug: Improve traceoff_on_warn
selftests/ftrace: Distinguish between hist and synthetic event checks
tracing: Move synthetic events to a separate file
tracing: Fix events.rst section numbering
tracing/doc: Fix typos in histogram-design.rst
tracing: Add hist_debug trace event files for histogram debugging
tracing: Add histogram-design document
tracing: Check state.disabled in synth event trace functions
tracing/probe: reverse arguments to list_add
tools/bootconfig: Add a summary of test cases and return error
ftrace: show debugging information when panic_on_warn set
This Kunit update for Linux 5.8-rc1 consists of:
- Several config fragment fixes from Anders Roxell to improve
test coverage.
- Improvements to kunit run script to use defconfig as default and
restructure the code for config/build/exec/parse from Vitor Massaru Iha
and David Gow.
- Miscellaneous documentation warn fix.
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Merge tag 'linux-kselftest-kunit-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kunit updates from Shuah Khan:
"This consists of:
- Several config fragment fixes from Anders Roxell to improve test
coverage.
- Improvements to kunit run script to use defconfig as default and
restructure the code for config/build/exec/parse from Vitor Massaru
Iha and David Gow.
- Miscellaneous documentation warn fix"
* tag 'linux-kselftest-kunit-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
security: apparmor: default KUNIT_* fragments to KUNIT_ALL_TESTS
fs: ext4: default KUNIT_* fragments to KUNIT_ALL_TESTS
drivers: base: default KUNIT_* fragments to KUNIT_ALL_TESTS
lib: Kconfig.debug: default KUNIT_* fragments to KUNIT_ALL_TESTS
kunit: default KUNIT_* fragments to KUNIT_ALL_TESTS
kunit: Kconfig: enable a KUNIT_ALL_TESTS fragment
kunit: Fix TabError, remove defconfig code and handle when there is no kunitconfig
kunit: use KUnit defconfig by default
kunit: use --build_dir=.kunit as default
Documentation: test.h - fix warnings
kunit: kunit_tool: Separate out config/build/exec/parse
This Kselftest update for Linux 5.8-rc1 consists of:
- Several fixes from Masami Hiramatsu to improve coverage for
lib and sysctl tests.
- Clean up to vdso test and a new test for getcpu() from Mark Brown.
- Add new gen_tar selftests Makefile target generate selftest package
running "make gen_tar" in selftests directory from Veronika Kabatova.
- Other miscellaneous fixes to timens, exec, tpm2 tests.
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Merge tag 'linux-kselftest-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
"This consists of:
- Several fixes from Masami Hiramatsu to improve coverage for lib and
sysctl tests.
- Clean up to vdso test and a new test for getcpu() from Mark Brown.
- Add new gen_tar selftests Makefile target generate selftest package
running "make gen_tar" in selftests directory from Veronika
Kabatova.
- Other miscellaneous fixes to timens, exec, tpm2 tests"
* tag 'linux-kselftest-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/sysctl: Make sysctl test driver as a module
selftests/sysctl: Fix to load test_sysctl module
lib: Make test_sysctl initialized as module
lib: Make prime number generator independently selectable
selftests/ftrace: Return unsupported if no error_log file
selftests/ftrace: Use printf for backslash included command
selftests/timens: handle a case when alarm clocks are not supported
Kernel selftests: Add check if TPM devices are supported
selftests: vdso: Add a selftest for vDSO getcpu()
selftests: vdso: Use a header file to prototype parse_vdso API
selftests: vdso: Rename vdso_test to vdso_test_gettimeofday
selftests/exec: Verify execve of non-regular files fail
selftests: introduce gen_tar Makefile target
Merge even more updates from Andrew Morton:
- a kernel-wide sweep of show_stack()
- pagetable cleanups
- abstract out accesses to mmap_sem - prep for mmap_sem scalability work
- hch's user acess work
Subsystems affected by this patch series: debug, mm/pagemap, mm/maccess,
mm/documentation.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (93 commits)
include/linux/cache.h: expand documentation over __read_mostly
maccess: return -ERANGE when probe_kernel_read() fails
x86: use non-set_fs based maccess routines
maccess: allow architectures to provide kernel probing directly
maccess: move user access routines together
maccess: always use strict semantics for probe_kernel_read
maccess: remove strncpy_from_unsafe
tracing/kprobes: handle mixed kernel/userspace probes better
bpf: rework the compat kernel probe handling
bpf:bpf_seq_printf(): handle potentially unsafe format string better
bpf: handle the compat string in bpf_trace_copy_string better
bpf: factor out a bpf_trace_copy_string helper
maccess: unify the probe kernel arch hooks
maccess: remove probe_read_common and probe_write_common
maccess: rename strnlen_unsafe_user to strnlen_user_nofault
maccess: rename strncpy_from_unsafe_strict to strncpy_from_kernel_nofault
maccess: rename strncpy_from_unsafe_user to strncpy_from_user_nofault
maccess: update the top of file comment
maccess: clarify kerneldoc comments
maccess: remove duplicate kerneldoc comments
...
Pull x86 srbds fixes from Thomas Gleixner:
"The 9th episode of the dime novel "The performance killer" with the
subtitle "Slow Randomizing Boosts Denial of Service".
SRBDS is an MDS-like speculative side channel that can leak bits from
the random number generator (RNG) across cores and threads. New
microcode serializes the processor access during the execution of
RDRAND and RDSEED. This ensures that the shared buffer is overwritten
before it is released for reuse. This is equivalent to a full bus
lock, which means that many threads running the RNG instructions in
parallel have the same effect as the same amount of threads issuing a
locked instruction targeting an address which requires locking of two
cachelines at once.
The mitigation support comes with the usual pile of unpleasant
ingredients:
- command line options
- sysfs file
- microcode checks
- a list of vulnerable CPUs identified by model and stepping this
time which requires stepping match support for the cpu match logic.
- the inevitable slowdown of affected CPUs"
* branch 'x86/srbds' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Add Ivy Bridge to affected list
x86/speculation: Add SRBDS vulnerability and mitigation documentation
x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation
x86/cpu: Add 'table' argument to cpu_matches()
This patch adds another way to attach bio flags to node writes.
Description: Give a way to attach REQ_META|FUA to node writes
given temperature-based bits. Now the bits indicate:
* REQ_META | REQ_FUA |
* 5 | 4 | 3 | 2 | 1 | 0 |
* Cold | Warm | Hot | Cold | Warm | Hot |
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
* fix the deadlock on rfkill/wireless removal that a few
people reported
* fix an uninitialized variable
* update wiki URLs
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Merge tag 'mac80211-for-davem-2020-06-08' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Just a small update:
* fix the deadlock on rfkill/wireless removal that a few
people reported
* fix an uninitialized variable
* update wiki URLs
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This introduces device managed versions of functions used to register
remoteproc devices, add support for remoteproc driver specific resource
control, enables remoteproc drivers to specify ELF class and machine for
coredumps. It integrates pm_runtime in the core for keeping resources
active while the remote is booted and holds a wake source while
recoverying a remote processor after a firmware crash.
It refactors the remoteproc device's allocation path to simplify the
logic, fix a few cleanup bugs and to not clone const strings onto the
heap. Debugfs code is simplifies using the DEFINE_SHOW_ATTRIBUTE and a
zero-length array is replaced with flexible-array.
A new remoteproc driver for the JZ47xx VPU is introduced, the Qualcomm
SM8250 gains support for audio, compute and sensor remoteprocs and the
Qualcomm SC7180 modem support is cleaned up and improved.
The Qualcomm glink subsystem-restart driver is merged into the main
glink driver, the Qualcomm sysmon driver is extended to properly notify
remote processors about all other remote processors' state transitions.
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Merge tag 'rproc-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This introduces device managed versions of functions used to register
remoteproc devices, add support for remoteproc driver specific
resource control, enables remoteproc drivers to specify ELF class and
machine for coredumps. It integrates pm_runtime in the core for
keeping resources active while the remote is booted and holds a wake
source while recoverying a remote processor after a firmware crash.
It refactors the remoteproc device's allocation path to simplify the
logic, fix a few cleanup bugs and to not clone const strings onto the
heap. Debugfs code is simplifies using the DEFINE_SHOW_ATTRIBUTE and a
zero-length array is replaced with flexible-array.
A new remoteproc driver for the JZ47xx VPU is introduced, the Qualcomm
SM8250 gains support for audio, compute and sensor remoteprocs and the
Qualcomm SC7180 modem support is cleaned up and improved.
The Qualcomm glink subsystem-restart driver is merged into the main
glink driver, the Qualcomm sysmon driver is extended to properly
notify remote processors about all other remote processors' state
transitions"
* tag 'rproc-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (43 commits)
remoteproc: Fix an error code in devm_rproc_alloc()
MAINTAINERS: Add myself as reviewer for Ingenic rproc driver
remoteproc: ingenic: Added remoteproc driver
remoteproc: Add support for runtime PM
dt-bindings: Document JZ47xx VPU auxiliary processor
remoteproc: wcss: Fix arguments passed to qcom_add_glink_subdev()
remoteproc: Fix and restore the parenting hierarchy for vdev
remoteproc: Fall back to using parent memory pool if no dedicated available
remoteproc: Replace zero-length array with flexible-array
remoteproc: wcss: add support for rpmsg communication
remoteproc: core: Prevent system suspend during remoteproc recovery
remoteproc: qcom_q6v5_mss: Remove unused q6v5_da_to_va function
remoteproc: qcom_q6v5_mss: map/unmap mpss segments before/after use
remoteproc: qcom_q6v5_mss: Drop accesses to MPSS PERPH register space
dt-bindings: remoteproc: qcom: Replace halt-nav with spare-regs
remoteproc: qcom: pas: Add SM8250 PAS remoteprocs
dt-bindings: remoteproc: qcom: pas: Add SM8250 remoteprocs
remoteproc: qcom_q6v5_mss: Extract mba/mpss from memory-region
dt-bindings: remoteproc: qcom: Use memory-region to reference memory
remoteproc: qcom: pas: Add SC7180 Modem support
...
- An iopen glock locking scheme rework that speeds up deletes of
inodes accessed from multiple nodes.
- Various bug fixes and debugging improvements.
- Convert gfs2-glocks.txt to ReST.
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Merge tag 'gfs2-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- An iopen glock locking scheme rework that speeds up deletes of inodes
accessed from multiple nodes
- Various bug fixes and debugging improvements
- Convert gfs2-glocks.txt to ReST
* tag 'gfs2-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: fix use-after-free on transaction ail lists
gfs2: new slab for transactions
gfs2: initialize transaction tr_ailX_lists earlier
gfs2: Smarter iopen glock waiting
gfs2: Wake up when setting GLF_DEMOTE
gfs2: Check inode generation number in delete_work_func
gfs2: Move inode generation number check into gfs2_inode_lookup
gfs2: Minor gfs2_lookup_by_inum cleanup
gfs2: Try harder to delete inodes locally
gfs2: Give up the iopen glock on contention
gfs2: Turn gl_delete into a delayed work
gfs2: Keep track of deleted inode generations in LVBs
gfs2: Allow ASPACE glocks to also have an lvb
gfs2: instrumentation wrt log_flush stuck
gfs2: introduce new gfs2_glock_assert_withdraw
gfs2: print mapping->nrpages in glock dump for address space glocks
gfs2: Only do glock put in gfs2_create_inode for free inodes
gfs2: Allow lock_nolock mount to specify jid=X
gfs2: Don't ignore inode write errors during inode_go_sync
docs: filesystems: convert gfs2-glocks.txt to ReST
- Add support for multi-function devices in pci code.
- Enable PF-VF linking for architectures using the
pdev->no_vf_scan flag (currently just s390).
- Add reipl from NVMe support.
- Get rid of critical section cleanup in entry.S.
- Refactor PNSO CHSC (perform network subchannel operation) in cio
and qeth.
- QDIO interrupts and error handling fixes and improvements, more
refactoring changes.
- Align ioremap() with generic code.
- Accept requests without the prefetch bit set in vfio-ccw.
- Enable path handling via two new regions in vfio-ccw.
- Other small fixes and improvements all over the code.
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Merge tag 's390-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
- Add support for multi-function devices in pci code.
- Enable PF-VF linking for architectures using the pdev->no_vf_scan
flag (currently just s390).
- Add reipl from NVMe support.
- Get rid of critical section cleanup in entry.S.
- Refactor PNSO CHSC (perform network subchannel operation) in cio and
qeth.
- QDIO interrupts and error handling fixes and improvements, more
refactoring changes.
- Align ioremap() with generic code.
- Accept requests without the prefetch bit set in vfio-ccw.
- Enable path handling via two new regions in vfio-ccw.
- Other small fixes and improvements all over the code.
* tag 's390-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (52 commits)
vfio-ccw: make vfio_ccw_regops variables declarations static
vfio-ccw: Add trace for CRW event
vfio-ccw: Wire up the CRW irq and CRW region
vfio-ccw: Introduce a new CRW region
vfio-ccw: Refactor IRQ handlers
vfio-ccw: Introduce a new schib region
vfio-ccw: Refactor the unregister of the async regions
vfio-ccw: Register a chp_event callback for vfio-ccw
vfio-ccw: Introduce new helper functions to free/destroy regions
vfio-ccw: document possible errors
vfio-ccw: Enable transparent CCW IPL from DASD
s390/pci: Log new handle in clp_disable_fh()
s390/cio, s390/qeth: cleanup PNSO CHSC
s390/qdio: remove q->first_to_kick
s390/qdio: fix up qdio_start_irq() kerneldoc
s390: remove critical section cleanup from entry.S
s390: add machine check SIGP
s390/pci: ioremap() align with generic code
s390/ap: introduce new ap function ap_get_qdev()
Documentation/s390: Update / remove developerWorks web links
...
Including:
- A big part of this is a change in how devices get connected to
IOMMUs in the core code. It contains the change from the old
add_device()/remove_device() to the new
probe_device()/release_device() call-backs. As a result
functionality that was previously in the IOMMU drivers has
been moved to the IOMMU core code, including IOMMU group
allocation for each device.
The reason for this change was to get more robust allocation
of default domains for the iommu groups.
A couple of fixes were necessary after this was merged into
the IOMMU tree, but there are no known bugs left. The last fix
is applied on-top of the merge commit for the topic branches.
- Removal of the driver private domain handling in the Intel
VT-d driver. This was fragile code and I am glad it is gone
now.
- More Intel VT-d updates from Lu Baolu:
- Nested Shared Virtual Addressing (SVA) support to the
Intel VT-d driver
- Replacement of the Intel SVM interfaces to the common
IOMMU SVA API
- SVA Page Request draining support
- ARM-SMMU Updates from Will:
- Avoid mapping reserved MMIO space on SMMUv3, so that
it can be claimed by the PMU driver
- Use xarray to manage ASIDs on SMMUv3
- Reword confusing shutdown message
- DT compatible string updates
- Allow implementations to override the default domain
type
- A new IOMMU driver for the Allwinner Sun50i platform
- Support for ATS gets disabled for untrusted devices (like
Thunderbolt devices). This includes a PCI patch, acked by
Bjorn.
- Some cleanups to the AMD IOMMU driver to make more use of
IOMMU core features.
- Unification of some printk formats in the Intel and AMD IOMMU
drivers and in the IOVA code.
- Updates for DT bindings
- A number of smaller fixes and cleanups.
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Merge tag 'iommu-updates-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"A big part of this is a change in how devices get connected to IOMMUs
in the core code. It contains the change from the old add_device() /
remove_device() to the new probe_device() / release_device()
call-backs.
As a result functionality that was previously in the IOMMU drivers has
been moved to the IOMMU core code, including IOMMU group allocation
for each device. The reason for this change was to get more robust
allocation of default domains for the iommu groups.
A couple of fixes were necessary after this was merged into the IOMMU
tree, but there are no known bugs left. The last fix is applied on-top
of the merge commit for the topic branches.
Other than that change, we have:
- Removal of the driver private domain handling in the Intel VT-d
driver. This was fragile code and I am glad it is gone now.
- More Intel VT-d updates from Lu Baolu:
- Nested Shared Virtual Addressing (SVA) support to the Intel VT-d
driver
- Replacement of the Intel SVM interfaces to the common IOMMU SVA
API
- SVA Page Request draining support
- ARM-SMMU Updates from Will:
- Avoid mapping reserved MMIO space on SMMUv3, so that it can be
claimed by the PMU driver
- Use xarray to manage ASIDs on SMMUv3
- Reword confusing shutdown message
- DT compatible string updates
- Allow implementations to override the default domain type
- A new IOMMU driver for the Allwinner Sun50i platform
- Support for ATS gets disabled for untrusted devices (like
Thunderbolt devices). This includes a PCI patch, acked by Bjorn.
- Some cleanups to the AMD IOMMU driver to make more use of IOMMU
core features.
- Unification of some printk formats in the Intel and AMD IOMMU
drivers and in the IOVA code.
- Updates for DT bindings
- A number of smaller fixes and cleanups.
* tag 'iommu-updates-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (109 commits)
iommu: Check for deferred attach in iommu_group_do_dma_attach()
iommu/amd: Remove redundant devid checks
iommu/amd: Store dev_data as device iommu private data
iommu/amd: Merge private header files
iommu/amd: Remove PD_DMA_OPS_MASK
iommu/amd: Consolidate domain allocation/freeing
iommu/amd: Free page-table in protection_domain_free()
iommu/amd: Allocate page-table in protection_domain_init()
iommu/amd: Let free_pagetable() not rely on domain->pt_root
iommu/amd: Unexport get_dev_data()
iommu/vt-d: Fix compile warning
iommu/vt-d: Remove real DMA lookup in find_domain
iommu/vt-d: Allocate domain info for real DMA sub-devices
iommu/vt-d: Only clear real DMA device's context entries
iommu: Remove iommu_sva_ops::mm_exit()
uacce: Remove mm_exit() op
iommu/sun50i: Constify sun50i_iommu_ops
iommu/hyper-v: Constify hyperv_ir_domain_ops
iommu/vt-d: Use pci_ats_supported()
iommu/arm-smmu-v3: Use pci_ats_supported()
...
Merge still more updates from Andrew Morton:
"Various trees. Mainly those parts of MM whose linux-next dependents
are now merged. I'm still sitting on ~160 patches which await merges
from -next.
Subsystems affected by this patch series: mm/proc, ipc, dynamic-debug,
panic, lib, sysctl, mm/gup, mm/pagemap"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (52 commits)
doc: cgroup: update note about conditions when oom killer is invoked
module: move the set_fs hack for flush_icache_range to m68k
nommu: use flush_icache_user_range in brk and mmap
binfmt_flat: use flush_icache_user_range
exec: use flush_icache_user_range in read_code
exec: only build read_code when needed
m68k: implement flush_icache_user_range
arm: rename flush_cache_user_range to flush_icache_user_range
xtensa: implement flush_icache_user_range
sh: implement flush_icache_user_range
asm-generic: add a flush_icache_user_range stub
mm: rename flush_icache_user_range to flush_icache_user_page
arm,sparc,unicore32: remove flush_icache_user_range
riscv: use asm-generic/cacheflush.h
powerpc: use asm-generic/cacheflush.h
openrisc: use asm-generic/cacheflush.h
m68knommu: use asm-generic/cacheflush.h
microblaze: use asm-generic/cacheflush.h
ia64: use asm-generic/cacheflush.h
hexagon: use asm-generic/cacheflush.h
...
Starting from v4.19 commit 29ef680ae7 ("memcg, oom: move out_of_memory
back to the charge path") cgroup oom killer is no longer invoked only
from page faults. Now it implements the same semantics as global OOM
killer: allocation context invokes OOM killer and keeps retrying until
success.
[akpm@linux-foundation.org: fixes per Randy]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Link: http://lkml.kernel.org/r/158894738928.208854.5244393925922074518.stgit@buzz
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "vhost, docs: convert to pin_user_pages(), new "case 5""
It recently became clear to me that there are some get_user_pages*()
callers that don't fit neatly into any of the four cases that are so far
listed in pin_user_pages.rst. vhost.c is one of those.
Add a Case 5 to the documentation, and refer to that when converting
vhost.c.
Thanks to Jan Kara for helping me (again) in understanding the
interaction between get_user_pages() and page writeback [1].
This is based on today's mmotm, which has a nearby patch to
pin_user_pages.rst that rewords cases 3 and 4.
Note that I have only compile-tested the vhost.c patch, although that
does also include cross-compiling for a few other arches. Any run-time
testing would be greatly appreciated.
[1] https://lore.kernel.org/r/20200529070343.GL14550@quack2.suse.cz
This patch (of 2):
There are four cases listed in pin_user_pages.rst. These are intended
to help developers figure out whether to use get_user_pages*(), or
pin_user_pages*(). However, the four cases do not cover all the
situations. For example, drivers/vhost/vhost.c has a "pin, write to
page, set page dirty, unpin" case.
Add a fifth case, to help explain that there is a general pattern that
requires pin_user_pages*() API calls.
[jhubbard@nvidia.com: v2]
Link: http://lkml.kernel.org/r/20200601052633.853874-2-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jan Kara <jack@suse.cz>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: "Michael S . Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Link: http://lkml.kernel.org/r/20200529234309.484480-1-jhubbard@nvidia.com
Link: http://lkml.kernel.org/r/20200529234309.484480-2-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update case 3 so that it covers the use of mmu notifiers, for hardware
that does, or does not have replayable page faults.
Also, elaborate case 4 slightly, as it was quite cryptic.
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: http://lkml.kernel.org/r/20200527194953.11130-1-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Usually when the kernel reaches an oops condition, it's a point of no
return; in case not enough debug information is available in the kernel
splat, one of the last resorts would be to collect a kernel crash dump
and analyze it. The problem with this approach is that in order to
collect the dump, a panic is required (to kexec-load the crash kernel).
When in an environment of multiple virtual machines, users may prefer to
try living with the oops, at least until being able to properly shutdown
their VMs / finish their important tasks.
This patch implements a way to collect a bit more debug details when an
oops event is reached, by printing all the CPUs backtraces through the
usage of NMIs (on architectures that support that). The sysctl added
(and documented) here was called "oops_all_cpu_backtrace", and when set
will (as the name suggests) dump all CPUs backtraces.
Far from ideal, this may be the last option though for users that for
some reason cannot panic on oops. Most of times oopses are clear enough
to indicate the kernel portion that must be investigated, but in virtual
environments it's possible to observe hypervisor/KVM issues that could
lead to oopses shown in other guests CPUs (like virtual APIC crashes).
This patch hence aims to help debug such complex issues without
resorting to kdump.
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Link: http://lkml.kernel.org/r/20200327224116.21030-1-gpiccoli@canonical.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 401c636a0e ("kernel/hung_task.c: show all hung tasks before
panic") introduced a change in that we started to show all CPUs
backtraces when a hung task is detected _and_ the sysctl/kernel
parameter "hung_task_panic" is set. The idea is good, because usually
when observing deadlocks (that may lead to hung tasks), the culprit is
another task holding a lock and not necessarily the task detected as
hung.
The problem with this approach is that dumping backtraces is a slightly
expensive task, specially printing that on console (and specially in
many CPU machines, as servers commonly found nowadays). So, users that
plan to collect a kdump to investigate the hung tasks and narrow down
the deadlock definitely don't need the CPUs backtrace on dmesg/console,
which will delay the panic and pollute the log (crash tool would easily
grab all CPUs traces with 'bt -a' command).
Also, there's the reciprocal scenario: some users may be interested in
seeing the CPUs backtraces but not have the system panic when a hung
task is detected. The current approach hence is almost as embedding a
policy in the kernel, by forcing the CPUs backtraces' dump (only) on
hung_task_panic.
This patch decouples the panic event on hung task from the CPUs
backtraces dump, by creating (and documenting) a new sysctl called
"hung_task_all_cpu_backtrace", analog to the approach taken on soft/hard
lockups, that have both a panic and an "all_cpu_backtrace" sysctl to
allow individual control. The new mechanism for dumping the CPUs
backtraces on hung task detection respects "hung_task_warnings" by not
dumping the traces in case there's no warnings left.
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Link: http://lkml.kernel.org/r/20200327223646.20779-1-gpiccoli@canonical.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
After a recent change introduced by Vlastimil's series [0], kernel is
able now to handle sysctl parameters on kernel command line; also, the
series introduced a simple infrastructure to convert legacy boot
parameters (that duplicate sysctls) into sysctl aliases.
This patch converts the watchdog parameters softlockup_panic and
{hard,soft}lockup_all_cpu_backtrace to use the new alias infrastructure.
It fixes the documentation too, since the alias only accepts values 0 or
1, not the full range of integers.
We also took the opportunity here to improve the documentation of the
previously converted hung_task_panic (see the patch series [0]) and put
the alias table in alphabetical order.
[0] http://lkml.kernel.org/r/20200427180433.7029-1-vbabka@suse.cz
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Kees Cook <keescook@chromium.org>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Link: http://lkml.kernel.org/r/20200507214624.21911-1-gpiccoli@canonical.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We can now handle sysctl parameters on kernel command line and have
infrastructure to convert legacy command line options that duplicate
sysctl to become a sysctl alias.
This patch converts the hung_task_panic parameter. Note that the sysctl
handler is more strict and allows only 0 and 1, while the legacy
parameter allowed any non-zero value. But there is little reason anyone
would not be using 1.
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20200427180433.7029-4-vbabka@suse.cz
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "support setting sysctl parameters from kernel command line", v3.
This series adds support for something that seems like many people
always wanted but nobody added it yet, so here's the ability to set
sysctl parameters via kernel command line options in the form of
sysctl.vm.something=1
The important part is Patch 1. The second, not so important part is an
attempt to clean up legacy one-off parameters that do the same thing as
a sysctl. I don't want to remove them completely for compatibility
reasons, but with generic sysctl support the idea is to remove the
one-off param handlers and treat the parameters as aliases for the
sysctl variants.
I have identified several parameters that mention sysctl counterparts in
Documentation/admin-guide/kernel-parameters.txt but there might be more.
The conversion also has varying level of success:
- numa_zonelist_order is converted in Patch 2 together with adding the
necessary infrastructure. It's easy as it doesn't really do anything
but warn on deprecated value these days.
- hung_task_panic is converted in Patch 3, but there's a downside that
now it only accepts 0 and 1, while previously it was any integer
value
- nmi_watchdog maps to two sysctls nmi_watchdog and hardlockup_panic,
so there's no straighforward conversion possible
- traceoff_on_warning is a flag without value and it would be required
to handle that somehow in the conversion infractructure, which seems
pointless for a single flag
This patch (of 5):
A recently proposed patch to add vm_swappiness command line parameter in
addition to existing sysctl [1] made me wonder why we don't have a
general support for passing sysctl parameters via command line.
Googling found only somebody else wondering the same [2], but I haven't
found any prior discussion with reasons why not to do this.
Settings the vm_swappiness issue aside (the underlying issue might be
solved in a different way), quick search of kernel-parameters.txt shows
there are already some that exist as both sysctl and kernel parameter -
hung_task_panic, nmi_watchdog, numa_zonelist_order, traceoff_on_warning.
A general mechanism would remove the need to add more of those one-offs
and might be handy in situations where configuration by e.g.
/etc/sysctl.d/ is impractical.
Hence, this patch adds a new parse_args() pass that looks for parameters
prefixed by 'sysctl.' and tries to interpret them as writes to the
corresponding sys/ files using an temporary in-kernel procfs mount.
This mechanism was suggested by Eric W. Biederman [3], as it handles
all dynamically registered sysctl tables, even though we don't handle
modular sysctls. Errors due to e.g. invalid parameter name or value
are reported in the kernel log.
The processing is hooked right before the init process is loaded, as
some handlers might be more complicated than simple setters and might
need some subsystems to be initialized. At the moment the init process
can be started and eventually execute a process writing to /proc/sys/
then it should be also fine to do that from the kernel.
Sysctls registered later on module load time are not set by this
mechanism - it's expected that in such scenarios, setting sysctl values
from userspace is practical enough.
[1] https://lore.kernel.org/r/BL0PR02MB560167492CA4094C91589930E9FC0@BL0PR02MB5601.namprd02.prod.outlook.com/
[2] https://unix.stackexchange.com/questions/558802/how-to-set-sysctl-using-kernel-command-line-parameter
[3] https://lore.kernel.org/r/87bloj2skm.fsf@x220.int.ebiederm.org/
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Link: http://lkml.kernel.org/r/20200427180433.7029-1-vbabka@suse.cz
Link: http://lkml.kernel.org/r/20200427180433.7029-2-vbabka@suse.cz
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Analogously to the introduction of panic_on_warn, this patch introduces
a kernel option named panic_on_taint in order to provide a simple and
generic way to stop execution and catch a coredump when the kernel gets
tainted by any given flag.
This is useful for debugging sessions as it avoids having to rebuild the
kernel to explicitly add calls to panic() into the code sites that
introduce the taint flags of interest.
For instance, if one is interested in proceeding with a post-mortem
analysis at the point a given code path is hitting a bad page (i.e.
unaccount_page_cache_page(), or slab_bug()), a coredump can be collected
by rebooting the kernel with 'panic_on_taint=0x20' amended to the
command line.
Another, perhaps less frequent, use for this option would be as a means
for assuring a security policy case where only a subset of taints, or no
single taint (in paranoid mode), is allowed for the running system. The
optional switch 'nousertaint' is handy in this particular scenario, as
it will avoid userspace induced crashes by writes to sysctl interface
/proc/sys/kernel/tainted causing false positive hits for such policies.
[akpm@linux-foundation.org: tweak kernel-parameters.txt wording]
Suggested-by: Qian Cai <cai@lca.pw>
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Adrian Bunk <bunk@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/20200515175502.146720-1-aquini@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Instead of enabling dynamic debug globally with CONFIG_DYNAMIC_DEBUG,
CONFIG_DYNAMIC_DEBUG_CORE will only enable core function of dynamic
debug. With the DYNAMIC_DEBUG_MODULE defined for any modules, dynamic
debug will be tied to them.
This is useful for people who only want to enable dynamic debug for
kernel modules without worrying about kernel image size and memory
consumption is increasing too much.
[orson.zhai@unisoc.com: v2]
Link: http://lkml.kernel.org/r/1587408228-10861-1-git-send-email-orson.unisoc@gmail.com
Signed-off-by: Orson Zhai <orson.zhai@unisoc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Petr Mladek <pmladek@suse.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Link: http://lkml.kernel.org/r/1586521984-5890-1-git-send-email-orson.unisoc@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Translate this commit to Korean:
39323c64b8 ("smp_mb__{before,after}_atomic(): update Documentation")
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Yunjae Lee <lyj7694@gmail.com>
Link: https://lore.kernel.org/r/20200606083746.20869-1-sjpark@amazon.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The devm_platform_get_and_ioremap_resource() should be documented in
devres.rst. Add the missing entry.
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Link: https://lore.kernel.org/r/20200527144531.9376-1-zhengdejin5@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200526060544.25127-1-grandmaster@al2klimov.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation generation warns:
it_IT/kernel-hacking/hacking.rst:
WARNING: unknown document: ../core-api/symbol/namespaces
it_IT/process/5.Posting.rst:
WARNING: undefined label: it_email_clients
it_IT/process/submitting-patches.rst:
WARNING: undefined label: it_email_clients
it_IT/process/howto.rst:
WARNING: undefined label: it_managementstyle
Refer to English documentation, as Italian translation does not exist,
and add labels for Italian process documents to resolve label references.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20200531185618.7099-1-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation generation warns:
Documentation/translations/zh_CN/filesystems/debugfs.rst:5:
WARNING: undefined label: debugfs_index
Use doc reference for files rather than introducing a label to refer to.
This resolves the warning above.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Link: https://lore.kernel.org/r/20200531183556.5751-1-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The link to the Linux Foundation NDA program got broken in one of their
web-site thrashups; now that the information is back online, point to its
current location. This should last until the next thrashup...
Reported-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Underline lengths should match the lengths of headings to avoid build
warnings with Sphinx.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Julia Lawall <julia.lawall@inria.fr>
Link: https://lore.kernel.org/r/20200605030405.6479-1-xypron.glpk@gmx.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Qualcomm APCS global block provides a bunch of generic properties which
are required in a device tree. Add YAML schema for these properties.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
In the files:
- regulatory.rst
- mac80211-injection.rst
the wiki url is still the old "wireless.kernel.org"
instead of the new "wireless.wiki.kernel.org"
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Link: https://lore.kernel.org/r/20200605154112.16277-2-f.suligoi@asem.it
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
kernel cycle.
New drivers:
- Intel Jasper Lake support.
- NXP Freescale i.MX8DXL support.
- Qualcomm SM8250 support.
- Renesas R8A7742 SH-PFC support.
Driver improvements:
- Severe cleanup and modernization of the MCP23s08 driver.
- Mediatek driver modularized.
- Setting config supported in the Meson driver.
- Wakeup support for the Broadcom BCM7211.
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Merge tag 'pinctrl-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v5.8 kernel cycle.
It's just really boring this time. Zero core changes. Just linear
development, cleanups and misc noncritical fixes. Some new drivers for
very new Qualcomm and Intel chips.
New drivers:
- Intel Jasper Lake support.
- NXP Freescale i.MX8DXL support.
- Qualcomm SM8250 support.
- Renesas R8A7742 SH-PFC support.
Driver improvements:
- Severe cleanup and modernization of the MCP23s08 driver.
- Mediatek driver modularized.
- Setting config supported in the Meson driver.
- Wakeup support for the Broadcom BCM7211"
* tag 'pinctrl-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits)
pinctrl: sprd: Fix the incorrect pull-up definition
pinctrl: pxa: pxa2xx: Remove 'pxa2xx_pinctrl_exit()' which is unused and broken
pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'
pinctrl: freescale: imx: Fix an error handling path in 'imx_pinctrl_probe()'
pinctrl: sirf: add missing put_device() call in sirfsoc_gpio_probe()
pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()'
pinctrl: bcm2835: Add support for wake-up interrupts
pinctrl: bcm2835: Match BCM7211 compatible string
dt-bindings: pinctrl: Document optional BCM7211 wake-up interrupts
dt-bindings: pinctrl: Document 7211 compatible for brcm, bcm2835-gpio.txt
dt-bindings: pinctrl: stm32: Add missing interrupts property
pinctrl: at91-pio4: Add COMPILE_TEST support
pinctrl: Fix return value about devm_platform_ioremap_resource()
MAINTAINERS: Renesas Pin Controllers are supported
dt-bindings: pinctrl: ocelot: Add Sparx5 SoC support
pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2
pinctrl: ocelot: Remove instance number from pin functions
pinctrl: ocelot: Always register GPIO driver
dt-bindings: pinctrl: rockchip: update example
pinctrl: amd: Add ACPI dependency
...
Here is the large set of char/misc driver patches for 5.8-rc1
Included in here are:
- habanalabs driver updates, loads
- mhi bus driver updates
- extcon driver updates
- clk driver updates (approved by the clock maintainer)
- firmware driver updates
- fpga driver updates
- gnss driver updates
- coresight driver updates
- interconnect driver updates
- parport driver updates (it's still alive!)
- nvmem driver updates
- soundwire driver updates
- visorbus driver updates
- w1 driver updates
- various misc driver updates
In short, loads of different driver subsystem updates along with the
drivers as well.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc driver patches for 5.8-rc1
Included in here are:
- habanalabs driver updates, loads
- mhi bus driver updates
- extcon driver updates
- clk driver updates (approved by the clock maintainer)
- firmware driver updates
- fpga driver updates
- gnss driver updates
- coresight driver updates
- interconnect driver updates
- parport driver updates (it's still alive!)
- nvmem driver updates
- soundwire driver updates
- visorbus driver updates
- w1 driver updates
- various misc driver updates
In short, loads of different driver subsystem updates along with the
drivers as well.
All have been in linux-next for a while with no reported issues"
* tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (233 commits)
habanalabs: correctly cast u64 to void*
habanalabs: initialize variable to default value
extcon: arizona: Fix runtime PM imbalance on error
extcon: max14577: Add proper dt-compatible strings
extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()'
extcon: remove redundant assignment to variable idx
w1: omap-hdq: print dev_err if irq flags are not cleared
w1: omap-hdq: fix interrupt handling which did show spurious timeouts
w1: omap-hdq: fix return value to be -1 if there is a timeout
w1: omap-hdq: cleanup to add missing newline for some dev_dbg
/dev/mem: Revoke mappings when a driver claims the region
misc: xilinx-sdfec: convert get_user_pages() --> pin_user_pages()
misc: xilinx-sdfec: cleanup return value in xsdfec_table_write()
misc: xilinx-sdfec: improve get_user_pages_fast() error handling
nvmem: qfprom: remove incorrect write support
habanalabs: handle MMU cache invalidation timeout
habanalabs: don't allow hard reset with open processes
habanalabs: GAUDI does not support soft-reset
habanalabs: add print for soft reset due to event
habanalabs: improve MMU cache invalidation code
...
Here is the set of driver core patches for 5.8-rc1.
Not all that huge this release, just a number of small fixes and
updates:
- software node fixes
- kobject now sends KOBJ_REMOVE when it is removed from sysfs,
not when it is removed from memory (which could come much
later)
- device link additions and fixes based on testing on more
devices
- firmware core cleanups
- other minor changes, full details in the shortlog
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of driver core patches for 5.8-rc1.
Not all that huge this release, just a number of small fixes and
updates:
- software node fixes
- kobject now sends KOBJ_REMOVE when it is removed from sysfs, not
when it is removed from memory (which could come much later)
- device link additions and fixes based on testing on more devices
- firmware core cleanups
- other minor changes, full details in the shortlog
All have been in linux-next for a while with no reported issues"
* tag 'driver-core-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (23 commits)
driver core: Update device link status correctly for SYNC_STATE_ONLY links
firmware_loader: change enum fw_opt to u32
software node: implement software_node_unregister()
kobject: send KOBJ_REMOVE uevent when the object is removed from sysfs
driver core: Remove unnecessary is_fwnode_dev variable in device_add()
drivers property: When no children in primary, try secondary
driver core: platform: Fix spelling errors in platform.c
driver core: Remove check in driver_deferred_probe_force_trigger()
of: platform: Batch fwnode parsing when adding all top level devices
driver core: fw_devlink: Add support for batching fwnode parsing
driver core: Look for waiting consumers only for a fwnode's primary device
driver core: Move code to the right part of the file
Revert "Revert "driver core: Set fw_devlink to "permissive" behavior by default""
drivers: base: Fix NULL pointer exception in __platform_driver_probe() if a driver developer is foolish
firmware_loader: move fw_fallback_config to a private kernel symbol namespace
driver core: Add missing '\n' in log messages
driver/base/soc: Use kobj_to_dev() API
Add documentation on meaning of -EPROBE_DEFER
driver core: platform: remove redundant assignment to variable ret
debugfs: Use the correct style for SPDX License Identifier
...
Here is the large set of staging and IIO driver changes for 5.8-rc1
Nothing major, but a lot of new IIO drivers are included in here, along
with other core iio cleanups and changes.
On the staging driver front, again, nothing noticable. No new deletions
or additions, just a ton of tiny cleanups all over the tree done by a
lot of different people. Most coding style, but many actual real fixes
and cleanups that are nice to see.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver updates from Greg KH:
"Here is the large set of staging and IIO driver changes for 5.8-rc1
Nothing major, but a lot of new IIO drivers are included in here,
along with other core iio cleanups and changes.
On the staging driver front, again, nothing noticable. No new
deletions or additions, just a ton of tiny cleanups all over the tree
done by a lot of different people. Most coding style, but many actual
real fixes and cleanups that are nice to see.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (618 commits)
staging: rtl8723bs: Use common packet header constants
staging: sm750fb: Add names to proc_setBLANK args
staging: most: usb: init return value in default path of switch/case expression
staging: vchiq: Get rid of VCHIQ_SERVICE_OPENEND callback reason
staging: vchiq: move vchiq_release_message() into vchiq
staging: vchi: Get rid of C++ guards
staging: vchi: Get rid of not implemented function declarations
staging: vchi: Get rid of vchiq_status_to_vchi()
staging: vchi: Get rid of vchi_service_set_option()
staging: vchi: Merge vchi_msg_queue() into vchi_queue_kernel_message()
staging: vchiq: Move copy callback handling into vchiq
staging: vchi: Get rid of vchi_queue_user_message()
staging: vchi: Get rid of vchi_service_destroy()
staging: most: usb: use function sysfs_streq
staging: most: usb: add missing put_device calls
staging: most: usb: use correct error codes
staging: most: usb: replace code to calculate array index
staging: most: usb: don't use error path to exit function on success
staging: most: usb: move allocation of URB out of critical section
staging: most: usb: return 0 instead of variable
...
Here is the tty and serial driver updates for 5.8-rc1
Nothing huge at all, just a lot of little serial driver fixes, updates
for new devices and features, and other small things. Full details are
in the shortlog.
Note, you will get a conflict merging with your tree in the
Documentation/devicetree/bindings/serial/rs485.yaml file, but it should
be pretty obvious what to do. If not, I'm sure Rob will clean it all up
afterwards :)
All of these have been in linux-next with no issues for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the tty and serial driver updates for 5.8-rc1
Nothing huge at all, just a lot of little serial driver fixes, updates
for new devices and features, and other small things. Full details are
in the shortlog.
All of these have been in linux-next with no issues for a while"
* tag 'tty-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (67 commits)
tty: serial: qcom_geni_serial: Add 51.2MHz frequency support
tty: serial: imx: clear Ageing Timer Interrupt in handler
serial: 8250_fintek: Add F81966 Support
sc16is7xx: Add flag to activate IrDA mode
dt-bindings: sc16is7xx: Add flag to activate IrDA mode
serial: 8250: Support rs485 bus termination GPIO
serial: 8520_port: Fix function param documentation
dt-bindings: serial: Add binding for rs485 bus termination GPIO
vt: keyboard: avoid signed integer overflow in k_ascii
serial: 8250: Enable 16550A variants by default on non-x86
tty: hvc_console, fix crashes on parallel open/close
serial: imx: Initialize lock for non-registered console
sc16is7xx: Read the LSR register for basic device presence check
sc16is7xx: Allow sharing the IRQ line
sc16is7xx: Use threaded IRQ
sc16is7xx: Always use falling edge IRQ
tty: n_gsm: Fix bogus i++ in gsm_data_kick
tty: n_gsm: Remove unnecessary test in gsm_print_packet()
serial: stm32: add no_console_suspend support
tty: serial: fsl_lpuart: Use __maybe_unused instead of #if CONFIG_PM_SLEEP
...
Here are the large set of USB and PHY driver updates for 5.8-rc1.
Nothing huge, just lots of little things:
- USB gadget fixes and additions all over the place
- new PHY drivers
- PHY driver fixes and updates
- XHCI driver updates
- musb driver updates
- more USB-serial driver ids added
- various USB quirks added
- thunderbolt minor updates and fixes
- typec updates and additions
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY driver updates from Greg KH:
"Here are the large set of USB and PHY driver updates for 5.8-rc1.
Nothing huge, just lots of little things:
- USB gadget fixes and additions all over the place
- new PHY drivers
- PHY driver fixes and updates
- XHCI driver updates
- musb driver updates
- more USB-serial driver ids added
- various USB quirks added
- thunderbolt minor updates and fixes
- typec updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (245 commits)
usb: dwc3: meson-g12a: fix USB2 PHY initialization on G12A and A1 SoCs
usb: dwc3: meson-g12a: fix error path when fetching the reset line fails
Revert "dt-bindings: usb: qcom,dwc3: Convert USB DWC3 bindings"
Revert "dt-bindings: usb: qcom,dwc3: Add compatible for SC7180"
Revert "dt-bindings: usb: qcom,dwc3: Introduce interconnect properties for Qualcomm DWC3 driver"
USB: serial: ch341: fix lockup of devices with limited prescaler
USB: serial: ch341: add basis for quirk detection
CDC-ACM: heed quirk also in error handling
USB: serial: option: add Telit LE910C1-EUX compositions
usb: musb: Fix runtime PM imbalance on error
usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set
usb: musb: mediatek: add reset FADDR to zero in reset interrupt handle
usb: musb: use true for 'use_dma'
usb: musb: start session in resume for host port
usb: musb: return -ESHUTDOWN in urb when three-strikes error happened
USB: serial: qcserial: add DW5816e QDL support
thunderbolt: Add trivial .shutdown
usb: dwc3: keystone: Turn on USB3 PHY before controller
dt-bindings: usb: ti,keystone-dwc3.yaml: Add USB3.0 PHY property
dt-bindings: usb: convert keystone-usb.txt to YAML
...
- allow only 'config', 'comment', 'if' statements inside 'choice' since
the other statements are not sensible inside 'choice' and should be
grammatical error
- support LMC_KEEP env variable for 'make local{yes,mod}config' to
preserve some CONFIG options
- deprecate 'make kvmconfig' and 'make xenconfig' in favor of
'make kvm_guest.config' and 'make xen.config'
- code cleanups
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Merge tag 'kconfig-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:
- allow only 'config', 'comment', 'if' statements inside 'choice' since
the other statements are not sensible inside 'choice' and should be
grammatical error
- support LMC_KEEP env variable for 'make local{yes,mod}config' to
preserve some CONFIG options
- deprecate 'make kvmconfig' and 'make xenconfig' in favor of
'make kvm_guest.config' and 'make xen.config'
- code cleanups
* tag 'kconfig-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: announce removal of 'kvmconfig' and 'xenconfig' shorthands
streamline_config.pl: add LMC_KEEP to preserve some kconfigs
kconfig: allow only 'config', 'comment', and 'if' inside 'choice'
kconfig: tests: remove randconfig test for choice in choice
kconfig: do not assign a variable in the return statement
kconfig: do not use OR-assignment for zero-cleared structure
- fix warnings in 'make clean' for ARCH=um, hexagon, h8300, unicore32
- ensure to rebuild all objects when the compiler is upgraded
- exclude system headers from dependency tracking and fixdep processing
- fix potential bit-size mismatch between the kernel and BPF user-mode
helper
- add the new syntax 'userprogs' to build user-space programs for the
target architecture (the same arch as the kernel)
- compile user-space sample code under samples/ for the target arch
instead of the host arch
- make headers_install fail if a CONFIG option is leaked to user-space
- sanitize the output format of scripts/checkstack.pl
- handle ARM 'push' instruction in scripts/checkstack.pl
- error out before modpost if a module name conflict is found
- error out when multiple directories are passed to M= because this
feature is broken for a long time
- add CONFIG_DEBUG_INFO_COMPRESSED to support compressed debug info
- a lot of cleanups of modpost
- dump vmlinux symbols out into vmlinux.symvers, and reuse it in the
second pass of modpost
- do not run the second pass of modpost if nothing in modules is updated
- install modules.builtin(.modinfo) by 'make install' as well as by
'make modules_install' because it is useful even when CONFIG_MODULES=n
- add new command line variables, GZIP, BZIP2, LZOP, LZMA, LZ4, and XZ
to allow users to use alternatives such as pigz, pbzip2, etc.
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Merge tag 'kbuild-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- fix warnings in 'make clean' for ARCH=um, hexagon, h8300, unicore32
- ensure to rebuild all objects when the compiler is upgraded
- exclude system headers from dependency tracking and fixdep processing
- fix potential bit-size mismatch between the kernel and BPF user-mode
helper
- add the new syntax 'userprogs' to build user-space programs for the
target architecture (the same arch as the kernel)
- compile user-space sample code under samples/ for the target arch
instead of the host arch
- make headers_install fail if a CONFIG option is leaked to user-space
- sanitize the output format of scripts/checkstack.pl
- handle ARM 'push' instruction in scripts/checkstack.pl
- error out before modpost if a module name conflict is found
- error out when multiple directories are passed to M= because this
feature is broken for a long time
- add CONFIG_DEBUG_INFO_COMPRESSED to support compressed debug info
- a lot of cleanups of modpost
- dump vmlinux symbols out into vmlinux.symvers, and reuse it in the
second pass of modpost
- do not run the second pass of modpost if nothing in modules is
updated
- install modules.builtin(.modinfo) by 'make install' as well as by
'make modules_install' because it is useful even when
CONFIG_MODULES=n
- add new command line variables, GZIP, BZIP2, LZOP, LZMA, LZ4, and XZ
to allow users to use alternatives such as pigz, pbzip2, etc.
* tag 'kbuild-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (96 commits)
kbuild: add variables for compression tools
Makefile: install modules.builtin even if CONFIG_MODULES=n
mksysmap: Fix the mismatch of '.L' symbols in System.map
kbuild: doc: rename LDFLAGS to KBUILD_LDFLAGS
modpost: change elf_info->size to size_t
modpost: remove is_vmlinux() helper
modpost: strip .o from modname before calling new_module()
modpost: set have_vmlinux in new_module()
modpost: remove mod->skip struct member
modpost: add mod->is_vmlinux struct member
modpost: remove is_vmlinux() call in check_for_{gpl_usage,unused}()
modpost: remove mod->is_dot_o struct member
modpost: move -d option in scripts/Makefile.modpost
modpost: remove -s option
modpost: remove get_next_text() and make {grab,release_}file static
modpost: use read_text_file() and get_line() for reading text files
modpost: avoid false-positive file open error
modpost: fix potential mmap'ed file overrun in get_src_version()
modpost: add read_text_file() and get_line() helpers
modpost: do not call get_modinfo() for vmlinux(.o)
...
Pull cgroup updates from Tejun Heo:
"Just two patches: one to add system-level cpu.stat to the root cgroup
for convenience and a trivial comment update"
* 'for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: add cpu.stat file to root cgroup
cgroup: Remove stale comments
The full build runs modpost twice, first for vmlinux.o and second for
modules.
The first pass dumps all the vmlinux symbols into Module.symvers, but
the second pass parses vmlinux again instead of reusing the dump file,
presumably because it needs to avoid accumulating stale symbols.
Loading symbol info from a dump file is faster than parsing an ELF object.
Besides, modpost deals with various issues to parse vmlinux in the second
pass.
A solution is to make the first pass dumps symbols into a separate file,
vmlinux.symvers. The second pass reads it, and parses module .o files.
The merged symbol information is dumped into Module.symvers in the same
way as before.
This makes further modpost cleanups possible.
Also, it fixes the problem of 'make vmlinux', which previously overwrote
Module.symvers, throwing away module symbols.
I slightly touched scripts/link-vmlinux.sh so that vmlinux is re-linked
when you cross this commit. Otherwise, vmlinux.symvers would not be
generated.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
* Fix performance problems found in dioread_nolock now that it is the
default, caused by transaction leaks.
* Clean up fiemap handling in ext4
* Clean up and refactor multiple block allocator (mballoc) code
* Fix a problem with mballoc with a smaller file systems running out
of blocks because they couldn't properly use blocks that had been
reserved by inode preallocation.
* Fixed a race in ext4_sync_parent() versus rename()
* Simplify the error handling in the extent manipulation code
* Make sure all metadata I/O errors are felected to ext4_ext_dirty()'s and
ext4_make_inode_dirty()'s callers.
* Avoid passing an error pointer to brelse in ext4_xattr_set()
* Fix race which could result to freeing an inode on the dirty last
in data=journal mode.
* Fix refcount handling if ext4_iget() fails
* Fix a crash in generic/019 caused by a corrupted extent node
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"A lot of bug fixes and cleanups for ext4, including:
- Fix performance problems found in dioread_nolock now that it is the
default, caused by transaction leaks.
- Clean up fiemap handling in ext4
- Clean up and refactor multiple block allocator (mballoc) code
- Fix a problem with mballoc with a smaller file systems running out
of blocks because they couldn't properly use blocks that had been
reserved by inode preallocation.
- Fixed a race in ext4_sync_parent() versus rename()
- Simplify the error handling in the extent manipulation code
- Make sure all metadata I/O errors are felected to
ext4_ext_dirty()'s and ext4_make_inode_dirty()'s callers.
- Avoid passing an error pointer to brelse in ext4_xattr_set()
- Fix race which could result to freeing an inode on the dirty last
in data=journal mode.
- Fix refcount handling if ext4_iget() fails
- Fix a crash in generic/019 caused by a corrupted extent node"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (58 commits)
ext4: avoid unnecessary transaction starts during writeback
ext4: don't block for O_DIRECT if IOCB_NOWAIT is set
ext4: remove the access_ok() check in ext4_ioctl_get_es_cache
fs: remove the access_ok() check in ioctl_fiemap
fs: handle FIEMAP_FLAG_SYNC in fiemap_prep
fs: move fiemap range validation into the file systems instances
iomap: fix the iomap_fiemap prototype
fs: move the fiemap definitions out of fs.h
fs: mark __generic_block_fiemap static
ext4: remove the call to fiemap_check_flags in ext4_fiemap
ext4: split _ext4_fiemap
ext4: fix fiemap size checks for bitmap files
ext4: fix EXT4_MAX_LOGICAL_BLOCK macro
add comment for ext4_dir_entry_2 file_type member
jbd2: avoid leaking transaction credits when unreserving handle
ext4: drop ext4_journal_free_reserved()
ext4: mballoc: use lock for checking free blocks while retrying
ext4: mballoc: refactor ext4_mb_good_group()
ext4: mballoc: introduce pcpu seqcnt for freeing PA to improve ENOSPC handling
ext4: mballoc: refactor ext4_mb_discard_preallocations()
...
version 2 feature that adds support for pairing regular block
devices with a zoned device to ease performance impact associated
with finite random zones of zoned device. Changes came in 3
batches: first prepared for and then added the ability to pair a
single regular block device, second was a batch of fixes to improve
zoned's reclaim heuristic, third removed the limitation of only
adding a single additional regular block device to allow many
devices. Testing has shown linear scaling as more devices are
added.
- Add new emulated block size (ebs) target that emulates a smaller
logical_block_size than a block device supports. Primary use-case
is to emulate "512e" devices that have 512 byte logical_block_size
and 4KB physical_block_size. This is useful to some legacy
applications otherwise wouldn't be ablee to be used on 4K devices
because they depend on issuing IO in 512 byte granularity.
- Add discard interfaces to DM bufio. First consumer of the interface
is the dm-ebs target that makes heavy use of dm-bufio.
- Fix DM crypt's block queue_limits stacking to not truncate
logic_block_size.
- Add Documentation for DM integrity's status line.
- Switch DMDEBUG from a compile time config option to instead use
dynamic debug via pr_debug.
- Fix DM multipath target's hueristic for how it manages
"queue_if_no_path" state internally. DM multipath now avoids
disabling "queue_if_no_path" unless it is actually needed (e.g. in
response to configure timeout or explicit "fail_if_no_path"
message). This fixes reports of spurious -EIO being reported back
to userspace application during fault tolerance testing with an NVMe
backend. Added various dynamic DMDEBUG messages to assist with
debugging queue_if_no_path in the future.
- Add a new DM multipath "Historical Service Time" Path Selector.
- Fix DM multipath's dm_blk_ioctl() to switch paths on IO error.
- Improve DM writecache target performance by using explicit
cache flushing for target's single-threaded usecase and a small
cleanup to remove unnecessary test in persistent_memory_claim.
- Other small cleanups in DM core, dm-persistent-data, and DM integrity.
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Merge tag 'for-5.8/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- The largest change for this cycle is the DM zoned target's metadata
version 2 feature that adds support for pairing regular block devices
with a zoned device to ease the performance impact associated with
finite random zones of zoned device.
The changes came in three batches: the first prepared for and then
added the ability to pair a single regular block device, the second
was a batch of fixes to improve zoned's reclaim heuristic, and the
third removed the limitation of only adding a single additional
regular block device to allow many devices.
Testing has shown linear scaling as more devices are added.
- Add new emulated block size (ebs) target that emulates a smaller
logical_block_size than a block device supports
The primary use-case is to emulate "512e" devices that have 512 byte
logical_block_size and 4KB physical_block_size. This is useful to
some legacy applications that otherwise wouldn't be able to be used
on 4K devices because they depend on issuing IO in 512 byte
granularity.
- Add discard interfaces to DM bufio. First consumer of the interface
is the dm-ebs target that makes heavy use of dm-bufio.
- Fix DM crypt's block queue_limits stacking to not truncate
logic_block_size.
- Add Documentation for DM integrity's status line.
- Switch DMDEBUG from a compile time config option to instead use
dynamic debug via pr_debug.
- Fix DM multipath target's hueristic for how it manages
"queue_if_no_path" state internally.
DM multipath now avoids disabling "queue_if_no_path" unless it is
actually needed (e.g. in response to configure timeout or explicit
"fail_if_no_path" message).
This fixes reports of spurious -EIO being reported back to userspace
application during fault tolerance testing with an NVMe backend.
Added various dynamic DMDEBUG messages to assist with debugging
queue_if_no_path in the future.
- Add a new DM multipath "Historical Service Time" Path Selector.
- Fix DM multipath's dm_blk_ioctl() to switch paths on IO error.
- Improve DM writecache target performance by using explicit cache
flushing for target's single-threaded usecase and a small cleanup to
remove unnecessary test in persistent_memory_claim.
- Other small cleanups in DM core, dm-persistent-data, and DM
integrity.
* tag 'for-5.8/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (62 commits)
dm crypt: avoid truncating the logical block size
dm mpath: add DM device name to Failing/Reinstating path log messages
dm mpath: enhance queue_if_no_path debugging
dm mpath: restrict queue_if_no_path state machine
dm mpath: simplify __must_push_back
dm zoned: check superblock location
dm zoned: prefer full zones for reclaim
dm zoned: select reclaim zone based on device index
dm zoned: allocate zone by device index
dm zoned: support arbitrary number of devices
dm zoned: move random and sequential zones into struct dmz_dev
dm zoned: per-device reclaim
dm zoned: add metadata pointer to struct dmz_dev
dm zoned: add device pointer to struct dm_zone
dm zoned: allocate temporary superblock for tertiary devices
dm zoned: convert to xarray
dm zoned: add a 'reserved' zone flag
dm zoned: improve logging messages for reclaim
dm zoned: avoid unnecessary device recalulation for secondary superblock
dm zoned: add debugging message for reading superblocks
...
A few large, long discussed works this time. The RNBD block driver has
been posted for nearly two years now, and the removal of FMR has been a
recurring discussion theme for a long time. The usual smattering of
features and bug fixes.
- Various small driver bugs fixes in rxe, mlx5, hfi1, and efa
- Continuing driver cleanups in bnxt_re, hns
- Big cleanup of mlx5 QP creation flows
- More consistent use of src port and flow label when LAG is used and a
mlx5 implementation
- Additional set of cleanups for IB CM
- 'RNBD' network block driver and target. This is a network block RDMA
device specific to ionos's cloud environment. It brings strong multipath
and resiliency capabilities.
- Accelerated IPoIB for HFI1
- QP/WQ/SRQ ioctl migration for uverbs, and support for multiple async fds
- Support for exchanging the new IBTA defiend ECE data during RDMA CM
exchanges
- Removal of the very old and insecure FMR interface from all ULPs and
drivers. FRWR should be preferred for at least a decade now.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"A more active cycle than most of the recent past, with a few large,
long discussed works this time.
The RNBD block driver has been posted for nearly two years now, and
flowing through RDMA due to it also introducing a new ULP.
The removal of FMR has been a recurring discussion theme for a long
time.
And the usual smattering of features and bug fixes.
Summary:
- Various small driver bugs fixes in rxe, mlx5, hfi1, and efa
- Continuing driver cleanups in bnxt_re, hns
- Big cleanup of mlx5 QP creation flows
- More consistent use of src port and flow label when LAG is used and
a mlx5 implementation
- Additional set of cleanups for IB CM
- 'RNBD' network block driver and target. This is a network block
RDMA device specific to ionos's cloud environment. It brings strong
multipath and resiliency capabilities.
- Accelerated IPoIB for HFI1
- QP/WQ/SRQ ioctl migration for uverbs, and support for multiple
async fds
- Support for exchanging the new IBTA defiend ECE data during RDMA CM
exchanges
- Removal of the very old and insecure FMR interface from all ULPs
and drivers. FRWR should be preferred for at least a decade now"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (247 commits)
RDMA/cm: Spurious WARNING triggered in cm_destroy_id()
RDMA/mlx5: Return ECE DC support
RDMA/mlx5: Don't rely on FW to set zeros in ECE response
RDMA/mlx5: Return an error if copy_to_user fails
IB/hfi1: Use free_netdev() in hfi1_netdev_free()
RDMA/hns: Uninitialized variable in modify_qp_init_to_rtr()
RDMA/core: Move and rename trace_cm_id_create()
IB/hfi1: Fix hfi1_netdev_rx_init() error handling
RDMA: Remove 'max_map_per_fmr'
RDMA: Remove 'max_fmr'
RDMA/core: Remove FMR device ops
RDMA/rdmavt: Remove FMR memory registration
RDMA/mthca: Remove FMR support for memory registration
RDMA/mlx4: Remove FMR support for memory registration
RDMA/i40iw: Remove FMR leftovers
RDMA/bnxt_re: Remove FMR leftovers
RDMA/mlx5: Remove FMR leftovers
RDMA/core: Remove FMR pool API
RDMA/rds: Remove FMR support for memory registration
RDMA/srp: Remove support for FMR memory registration
...
Core changes:
- A new GPIO aggregator driver has been merged: this can
join a few select GPIO lines into a new aggregated GPIO
chip. This can be used for security: a process can be
granted access to only these lines, for example for
industrial control. Another way to use this is to
reexpose certain select lines to a virtual machine or
container.
- Warn if the gpio-line-names is too long in he DT parser
core.
- GPIO lines can now be looked up by line name in addition
to being looked up by offset.
New drivers:
- A new generic regmap GPIO driver has been merged. Too
many regmap drivers are starting to look like each other
so we need to create some common ground and try to move
drivers over to using that.
- The F7188X driver now supports F81865.
Driver improvements:
- Large improvements to the PCA953x expander, get multiple lines
and several cleanups.
- Large improvements to the DesignWare DWAPB driver, and Sergey
Semin has volunteered to maintain it.
- PL061 can now be built as a module, this is part of a bigger
effort to make the ARM platforms more modular.
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Merge tag 'gpio-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v5.8 kernel cycle.
Core changes:
- A new GPIO aggregator driver has been merged: this can join a few
select GPIO lines into a new aggregated GPIO chip. This can be used
for security: a process can be granted access to only these lines,
for example for industrial control. Another way to use this is to
reexpose certain select lines to a virtual machine or container.
- Warn if the gpio-line-names is too long in he DT parser core.
- GPIO lines can now be looked up by line name in addition to being
looked up by offset.
New drivers:
- A new generic regmap GPIO driver has been merged. Too many regmap
drivers are starting to look like each other so we need to create
some common ground and try to move drivers over to using that.
- The F7188X driver now supports F81865.
Driver improvements:
- Large improvements to the PCA953x expander, get multiple lines and
several cleanups.
- Large improvements to the DesignWare DWAPB driver, and Sergey Semin
has volunteered to maintain it.
- PL061 can now be built as a module, this is part of a bigger effort
to make the ARM platforms more modular"
* tag 'gpio-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
gpio: pca953x: Drop unneeded ACPI_PTR()
MAINTAINERS: Add gpio regmap section
gpio: add a reusable generic gpio_chip using regmap
gpiolib: Introduce gpiochip_irqchip_add_domain()
gpio: gpiolib: Allow GPIO IRQs to lazy disable
gpiolib: Separate GPIO_GET_LINEINFO_WATCH_IOCTL conditional
gpio: rcar: Fix runtime PM imbalance on error
gpio: pca935x: Allow IRQ support for driver built as a module
gpio: pxa: Add COMPILE_TEST support
dt-bindings: gpio: Add renesas,em-gio bindings
MAINTAINERS: Fix file name for DesignWare GPIO DT schema
gpio: dwapb: Remove unneeded has_irq member in struct dwapb_port_property
gpio: dwapb: Don't use IRQ 0 as valid Linux interrupt
gpio: dwapb: avoid error message for optional IRQ
gpio: dwapb: Call acpi_gpiochip_free_interrupts() on GPIO chip de-registration
gpio: max730x: bring gpiochip_add_data after port config
MAINTAINERS: Add GPIO Aggregator section
docs: gpio: Add GPIO Aggregator documentation
gpio: Add GPIO Aggregator
gpiolib: Add support for GPIO lookup by line name
...
- Support for userspace to send requests directly to the on-chip GZIP
accelerator on Power9.
- Rework of our lockless page table walking (__find_linux_pte()) to make it
safe against parallel page table manipulations without relying on an IPI for
serialisation.
- A series of fixes & enhancements to make our machine check handling more
robust.
- Lots of plumbing to add support for "prefixed" (64-bit) instructions on
Power10.
- Support for using huge pages for the linear mapping on 8xx (32-bit).
- Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound driver.
- Removal of some obsolete 40x platforms and associated cruft.
- Initial support for booting on Power10.
- Lots of other small features, cleanups & fixes.
Thanks to:
Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Andrey Abramov,
Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent Abali, Cédric Le
Goater, Chen Zhou, Christian Zigotzky, Christophe JAILLET, Christophe Leroy,
Dmitry Torokhov, Emmanuel Nicolet, Erhard F., Gautham R. Shenoy, Geoff Levand,
George Spelvin, Greg Kurz, Gustavo A. R. Silva, Gustavo Walbon, Haren Myneni,
Hari Bathini, Joel Stanley, Jordan Niethe, Kajol Jain, Kees Cook, Leonardo
Bras, Madhavan Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael
Neuling, Michal Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao,
Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram
Pai, Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler, Wolfram
Sang, Xiongfeng Wang.
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Merge tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Support for userspace to send requests directly to the on-chip GZIP
accelerator on Power9.
- Rework of our lockless page table walking (__find_linux_pte()) to
make it safe against parallel page table manipulations without
relying on an IPI for serialisation.
- A series of fixes & enhancements to make our machine check handling
more robust.
- Lots of plumbing to add support for "prefixed" (64-bit) instructions
on Power10.
- Support for using huge pages for the linear mapping on 8xx (32-bit).
- Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound
driver.
- Removal of some obsolete 40x platforms and associated cruft.
- Initial support for booting on Power10.
- Lots of other small features, cleanups & fixes.
Thanks to: Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan,
Andrey Abramov, Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent
Abali, Cédric Le Goater, Chen Zhou, Christian Zigotzky, Christophe
JAILLET, Christophe Leroy, Dmitry Torokhov, Emmanuel Nicolet, Erhard F.,
Gautham R. Shenoy, Geoff Levand, George Spelvin, Greg Kurz, Gustavo A.
R. Silva, Gustavo Walbon, Haren Myneni, Hari Bathini, Joel Stanley,
Jordan Niethe, Kajol Jain, Kees Cook, Leonardo Bras, Madhavan
Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Michal
Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin,
Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram Pai,
Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler,
Wolfram Sang, Xiongfeng Wang.
* tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (299 commits)
powerpc/pseries: Make vio and ibmebus initcalls pseries specific
cxl: Remove dead Kconfig options
powerpc: Add POWER10 architected mode
powerpc/dt_cpu_ftrs: Add MMA feature
powerpc/dt_cpu_ftrs: Enable Prefixed Instructions
powerpc/dt_cpu_ftrs: Advertise support for ISA v3.1 if selected
powerpc: Add support for ISA v3.1
powerpc: Add new HWCAP bits
powerpc/64s: Don't set FSCR bits in INIT_THREAD
powerpc/64s: Save FSCR to init_task.thread.fscr after feature init
powerpc/64s: Don't let DT CPU features set FSCR_DSCR
powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()
powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG
powerpc/module_64: Use special stub for _mcount() with -mprofile-kernel
powerpc/module_64: Simplify check for -mprofile-kernel ftrace relocations
powerpc/module_64: Consolidate ftrace code
powerpc/32: Disable KASAN with pages bigger than 16k
powerpc/uaccess: Don't set KUEP by default on book3s/32
powerpc/uaccess: Don't set KUAP by default on book3s/32
powerpc/8xx: Reduce time spent in allow_user_access() and friends
...
David S. Miller