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Closer inspection of the Xen code shows that we aren't supposed to be
using the XEN_RUNSTATE_UPDATE flag unconditionally. It should be
explicitly enabled by guests through the HYPERVISOR_vm_assist hypercall.
If we randomly set the top bit of ->state_entry_time for a guest that
hasn't asked for it and doesn't expect it, that could make the runtimes
fail to add up and confuse the guest. Without the flag it's perfectly
safe for a vCPU to read its own vcpu_runstate_info; just not for one
vCPU to read *another's*.
I briefly pondered adding a word for the whole set of VMASST_TYPE_*
flags but the only one we care about for HVM guests is this, so it
seemed a bit pointless.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20221127122210.248427-3-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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====================
bpf-next 2022-11-25
We've added 101 non-merge commits during the last 11 day(s) which contain
a total of 109 files changed, 8827 insertions(+), 1129 deletions(-).
The main changes are:
1) Support for user defined BPF objects: the use case is to allocate own
objects, build own object hierarchies and use the building blocks to
build own data structures flexibly, for example, linked lists in BPF,
from Kumar Kartikeya Dwivedi.
2) Add bpf_rcu_read_{,un}lock() support for sleepable programs,
from Yonghong Song.
3) Add support storing struct task_struct objects as kptrs in maps,
from David Vernet.
4) Batch of BPF map documentation improvements, from Maryam Tahhan
and Donald Hunter.
5) Improve BPF verifier to propagate nullness information for branches
of register to register comparisons, from Eduard Zingerman.
6) Fix cgroup BPF iter infra to hold reference on the start cgroup,
from Hou Tao.
7) Fix BPF verifier to not mark fentry/fexit program arguments as trusted
given it is not the case for them, from Alexei Starovoitov.
8) Improve BPF verifier's realloc handling to better play along with dynamic
runtime analysis tools like KASAN and friends, from Kees Cook.
9) Remove legacy libbpf mode support from bpftool,
from Sahid Orentino Ferdjaoui.
10) Rework zero-len skb redirection checks to avoid potentially breaking
existing BPF test infra users, from Stanislav Fomichev.
11) Two small refactorings which are independent and have been split out
of the XDP queueing RFC series, from Toke Høiland-Jørgensen.
12) Fix a memory leak in LSM cgroup BPF selftest, from Wang Yufen.
13) Documentation on how to run BPF CI without patch submission,
from Daniel Müller.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
====================
Link: https://lore.kernel.org/r/20221125012450.441-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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introduce a new ioctl to replace the whole content of a file atomically,
which means it induces truncate and content update at the same time.
We can start it with F2FS_IOC_START_ATOMIC_REPLACE and complete it with
F2FS_IOC_COMMIT_ATOMIC_WRITE. Or abort it with
F2FS_IOC_ABORT_ATOMIC_WRITE.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
- Second batch of the lazy destroy patches
- First batch of KVM changes for kernel virtual != physical address support
- Removal of a unused function
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add contiguous nv12 tiled format nv12_8l128 and nv12_10be_8l128
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Extend the DVB frontend parameter enums with additional values specified
by the DVB-C2 (ETSI EN 302 769) and DVB-S2X (ETSI EN 302 307-2)
standards to be ready for frontend drivers for such receivers.
While most parameters will be "read-only" due to being autodetected by
the receiver and only being reported back for informational purposes,
the addition of SYS_DVBC2 to the delivery systems enum is required,
because there are DVB-C2 capable receivers which are not capable of
DVB-C/C2 autodetection and thus need this enum value to be explicitly
instructed to search for a DVB-C2 signal.
As for DVB-S2X, as that is an extension to DVB-S2, the same delivery
system enum as for DVB-S2 can be used.
Add the additional enum values and comments to the documentation.
Link: https://lore.kernel.org/linux-media/trinity-1b7c5a66-85d4-4595-a690-0fde965d49b3-1642146228587@3c-app-gmx-bap69
Signed-off-by: Robert Schlabbach <robert_s@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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* append missing optnames to the end
* simplify bpf_getsockopt()'s doc
Signed-off-by: Ji Rongfeng <SikoJobs@outlook.com>
Link: https://lore.kernel.org/r/DU0P192MB15479B86200B1216EC90E162D6099@DU0P192MB1547.EURP192.PROD.OUTLOOK.COM
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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After the commits for userspace (see Link tags below) the uuid field
is not being used in the ACRN code. Update kernel to reflect these
changes, i.e. do the following:
- adding a comment explaining that it's not used anymore
- replacing the specific type by a raw buffer
- updating the example code accordingly
The advertised field confused users and actually never been used.
So the wrong part here is that kernel puts something which userspace
never used and hence this may confuse a reader of this code.
Note, that there is only a single tool that had been prepared a year
ago for these forthcoming changes in the kernel.
Link: https://github.com/projectacrn/acrn-hypervisor/commit/da0d24326ed6
Link: https://github.com/projectacrn/acrn-hypervisor/commit/bb0327e70097
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20221116162956.72658-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add KVM_CAP_S390_PROTECTED_ASYNC_DISABLE to signal that the
KVM_PV_ASYNC_DISABLE and KVM_PV_ASYNC_DISABLE_PREPARE commands for the
KVM_S390_PV_COMMAND ioctl are available.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20221111170632.77622-4-imbrenda@linux.ibm.com
Message-Id: <20221111170632.77622-4-imbrenda@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
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Until now, destroying a protected guest was an entirely synchronous
operation that could potentially take a very long time, depending on
the size of the guest, due to the time needed to clean up the address
space from protected pages.
This patch implements an asynchronous destroy mechanism, that allows a
protected guest to reboot significantly faster than previously.
This is achieved by clearing the pages of the old guest in background.
In case of reboot, the new guest will be able to run in the same
address space almost immediately.
The old protected guest is then only destroyed when all of its memory
has been destroyed or otherwise made non protected.
Two new PV commands are added for the KVM_S390_PV_COMMAND ioctl:
KVM_PV_ASYNC_CLEANUP_PREPARE: set aside the current protected VM for
later asynchronous teardown. The current KVM VM will then continue
immediately as non-protected. If a protected VM had already been
set aside for asynchronous teardown, but without starting the teardown
process, this call will fail. There can be at most one VM set aside at
any time. Once it is set aside, the protected VM only exists in the
context of the Ultravisor, it is not associated with the KVM VM
anymore. Its protected CPUs have already been destroyed, but not its
memory. This command can be issued again immediately after starting
KVM_PV_ASYNC_CLEANUP_PERFORM, without having to wait for completion.
KVM_PV_ASYNC_CLEANUP_PERFORM: tears down the protected VM previously
set aside using KVM_PV_ASYNC_CLEANUP_PREPARE. Ideally the
KVM_PV_ASYNC_CLEANUP_PERFORM PV command should be issued by userspace
from a separate thread. If a fatal signal is received (or if the
process terminates naturally), the command will terminate immediately
without completing. All protected VMs whose teardown was interrupted
will be put in the need_cleanup list. The rest of the normal KVM
teardown process will take care of properly cleaning up all remaining
protected VMs, including the ones on the need_cleanup list.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Link: https://lore.kernel.org/r/20221111170632.77622-2-imbrenda@linux.ibm.com
Message-Id: <20221111170632.77622-2-imbrenda@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
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In general, as of now, in FUSE, direct writes on the same file are
serialized over inode lock i.e we hold inode lock for the full duration of
the write request. I could not find in fuse code and git history a comment
which clearly explains why this exclusive lock is taken for direct writes.
Following might be the reasons for acquiring an exclusive lock but not be
limited to
1) Our guess is some USER space fuse implementations might be relying on
this lock for serialization.
2) The lock protects against file read/write size races.
3) Ruling out any issues arising from partial write failures.
This patch relaxes the exclusive lock for direct non-extending writes only.
File size extending writes might not need the lock either, but we are not
entirely sure if there is a risk to introduce any kind of regression.
Furthermore, benchmarking with fio does not show a difference between patch
versions that take on file size extension a) an exclusive lock and b) a
shared lock.
A possible example of an issue with i_size extending writes are write error
cases. Some writes might succeed and others might fail for file system
internal reasons - for example ENOSPACE. With parallel file size extending
writes it _might_ be difficult to revert the action of the failing write,
especially to restore the right i_size.
With these changes, we allow non-extending parallel direct writes on the
same file with the help of a flag called FOPEN_PARALLEL_DIRECT_WRITES. If
this flag is set on the file (flag is passed from libfuse to fuse kernel as
part of file open/create), we do not take exclusive lock anymore, but
instead use a shared lock that allows non-extending writes to run in
parallel. FUSE implementations which rely on this inode lock for
serialization can continue to do so and serialized direct writes are still
the default. Implementations that do not do write serialization need to be
updated and need to set the FOPEN_PARALLEL_DIRECT_WRITES flag in their file
open/create reply.
On patch review there were concerns that network file systems (or vfs
multiple mounts of the same file system) might have issues with parallel
writes. We believe this is not the case, as this is just a local lock,
which network file systems could not rely on anyway. I.e. this lock is
just for local consistency.
Signed-off-by: Dharmendra Singh <dsingh@ddn.com>
Signed-off-by: Bernd Schubert <bschubert@ddn.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Add a flag to entry expiration that lets the filesystem expire a dentry
without kicking it out from the cache immediately.
This makes a difference for overmounted dentries, where plain invalidation
would detach all submounts before dropping the dentry from the cache. If
only expiry is set on the dentry, then any overmounts are left alone and
until ->d_revalidate() is called.
Note: ->d_revalidate() is not called for the case of following a submount,
so invalidation will only be triggered for the non-overmounted case. The
dentry could also be mounted in a different mount instance, in which case
any submounts will still be detached.
Suggested-by: Jakob Blomer <jblomer@cern.ch>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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HUTRR72 added 3 new usage codes for keys that are supposed to enable,
disable and toggle camera access. These are useful, considering many
laptops today have key(s) for toggling access to camera.
This patch adds new key definitions for KEY_CAMERA_ACCESS_ENABLE,
KEY_CAMERA_ACCESS_DISABLE and KEY_CAMERA_ACCESS_TOGGLE. Additionally
hid-debug is adjusted to recognize this new usage codes as well.
Signed-off-by: Eray Orçunus <erayorcunus@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/r/20221029120311.11152-3-erayorcunus@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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We need the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We can have dependencies between epoll and io_uring. Consider an epoll
context, identified by the epfd file descriptor, and an io_uring file
descriptor identified by iofd. If we add iofd to the epfd context, and
arm a multishot poll request for epfd with iofd, then the multishot
poll request will repeatedly trigger and generate events until terminated
by CQ ring overflow. This isn't a desired behavior.
Add EPOLL_URING so that io_uring can pass it in as part of the poll wakeup
key, and io_uring can check for that to detect a potential recursive
invocation.
Cc: stable@vger.kernel.org # 6.0
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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It might be useful for applications to detect if a zero copy transfer with
SEND[MSG]_ZC was actually possible or not. The application can fallback to
plain SEND[MSG] in order to avoid the overhead of two cqes per request. Or
it can generate a log message that could indicate to an administrator that
no zero copy was possible and could explain degraded performance.
Cc: stable@vger.kernel.org # 6.1
Link: https://lore.kernel.org/io-uring/fb6a7599-8a9b-15e5-9b64-6cd9d01c6ff4@gmail.com/T/#m2b0d9df94ce43b0e69e6c089bdff0ce6babbdfaa
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/8945b01756d902f5d5b0667f20b957ad3f742e5e.1666895626.git.metze@samba.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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I've added a flex array to struct nlmsghdr in
commit 738136a0e375 ("netlink: split up copies in the ack construction")
to allow accessing the data easily. It leads to warnings with clang,
if user space wraps this structure into another struct and the flex
array is not at the end of the container.
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/all/20221114023927.GA685@u2004-local/
Link: https://lore.kernel.org/r/20221118033903.1651026-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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To fully utilize offload capabilities of Intel 100G card QoS capabilities
new attribute 'tx_weight' needs to be introduced. This attribute allows
for usage of Weighted Fair Queuing arbitration scheme among siblings.
This arbitration scheme can be used simultaneously with the strict
priority.
Introduce new attribute in devlink-rate that will allow for configuration
of Weighted Fair Queueing. New attribute is optional.
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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To fully utilize offload capabilities of Intel 100G card QoS capabilities
new attribute 'tx_priority' needs to be introduced. This attribute allows
for usage of strict priority arbiter among siblings. This arbitration
scheme attempts to schedule nodes based on their priority as long as the
nodes remain within their bandwidth limit.
Introduce new attribute in devlink-rate that will allow for configuration
of strict priority. New attribute is optional.
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Many of the drivers which implement ethtool_ops::get_drvinfo() will
prints the .driver, .version or .bus_info of struct ethtool_drvinfo.
To have a glance of current state, do:
$ git grep -W "get_drvinfo(struct"
Printing in those three fields is useless because:
- since [1], the driver version should be the kernel version (at
least for upstream drivers). Arguably, out of tree drivers might
still want to set a custom version, but out of tree is not our
focus.
- since [2], the core is able to provide default values for .driver
and .bus_info.
In summary, drivers may provide .fw_version and .erom_version, the
rest is expected to be done by the core.
In struct ethtool_ops doc from linux/ethtool: rephrase field
get_drvinfo() doc to discourage developers from implementing this
callback.
In struct ethtool_drvinfo doc from uapi/linux/ethtool.h: remove the
paragraph mentioning what drivers should do. Rationale: no need to
repeat what is already written in struct ethtool_ops doc. But add a
note that .fw_version and .erom_version are driver defined.
Also update the dummy driver and simply remove the callback in order
not to confuse the newcomers: most of the drivers will not need this
callback function any more.
[1] commit 6a7e25c7fb48 ("net/core: Replace driver version to be
kernel version")
Link: https://git.kernel.org/torvalds/linux/c/6a7e25c7fb48
[2] commit edaf5df22cb8 ("ethtool: ethtool_get_drvinfo: populate
drvinfo fields even if callback exits")
Link: https://git.kernel.org/netdev/net-next/c/edaf5df22cb8
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/r/20221116171828.4093-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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include/linux/bpf.h
1f6e04a1c7b8 ("bpf: Fix offset calculation error in __copy_map_value and zero_map_value")
aa3496accc41 ("bpf: Refactor kptr_off_tab into btf_record")
f71b2f64177a ("bpf: Refactor map->off_arr handling")
https://lore.kernel.org/all/20221114095000.67a73239@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Remove some left-over from commit e2be04c7f995 ("License cleanup: add SPDX
license identifier to uapi header files with a license")
When the SPDX-License-Identifier tag has been added, the corresponding
license text has not been removed.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Kai Vehmanen <kvcontact@nosignal.fi>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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TDX guest driver exposes IOCTL interfaces to service TDX guest
user-specific requests. Currently, it is only used to allow the user to
get the TDREPORT to support TDX attestation.
Details about the TDX attestation process are documented in
Documentation/x86/tdx.rst, and the IOCTL details are documented in
Documentation/virt/coco/tdx-guest.rst.
Operations like getting TDREPORT involves sending a blob of data as
input and getting another blob of data as output. It was considered
to use a sysfs interface for this, but it doesn't fit well into the
standard sysfs model for configuring values. It would be possible to
do read/write on files, but it would need multiple file descriptors,
which would be somewhat messy. IOCTLs seem to be the best fitting
and simplest model for this use case. The AMD sev-guest driver also
uses the IOCTL interface to support attestation.
[Bagas Sanjaya: Ack is for documentation portion]
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Kai Huang <kai.huang@intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Wander Lairson Costa <wander@redhat.com>
Link: https://lore.kernel.org/all/20221116223820.819090-3-sathyanarayanan.kuppuswamy%40linux.intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bpf.
Current release - regressions:
- tls: fix memory leak in tls_enc_skb() and tls_sw_fallback_init()
Previous releases - regressions:
- bridge: fix memory leaks when changing VLAN protocol
- dsa: make dsa_master_ioctl() see through port_hwtstamp_get() shims
- dsa: don't leak tagger-owned storage on switch driver unbind
- eth: mlxsw: avoid warnings when not offloaded FDB entry with IPv6
is removed
- eth: stmmac: ensure tx function is not running in
stmmac_xdp_release()
- eth: hns3: fix return value check bug of rx copybreak
Previous releases - always broken:
- kcm: close race conditions on sk_receive_queue
- bpf: fix alignment problem in bpf_prog_test_run_skb()
- bpf: fix writing offset in case of fault in
strncpy_from_kernel_nofault
- eth: macvlan: use built-in RCU list checking
- eth: marvell: add sleep time after enabling the loopback bit
- eth: octeon_ep: fix potential memory leak in octep_device_setup()
Misc:
- tcp: configurable source port perturb table size
- bpf: Convert BPF_DISPATCHER to use static_call() (not ftrace)"
* tag 'net-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits)
net: use struct_group to copy ip/ipv6 header addresses
net: usb: smsc95xx: fix external PHY reset
net: usb: qmi_wwan: add Telit 0x103a composition
netdevsim: Fix memory leak of nsim_dev->fa_cookie
tcp: configurable source port perturb table size
l2tp: Serialize access to sk_user_data with sk_callback_lock
net: thunderbolt: Fix error handling in tbnet_init()
net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()
net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()
net: dsa: don't leak tagger-owned storage on switch driver unbind
net/x25: Fix skb leak in x25_lapb_receive_frame()
net: ag71xx: call phylink_disconnect_phy if ag71xx_hw_enable() fail in ag71xx_open()
bridge: switchdev: Fix memory leaks when changing VLAN protocol
net: hns3: fix setting incorrect phy link ksettings for firmware in resetting process
net: hns3: fix return value check bug of rx copybreak
net: hns3: fix incorrect hw rss hash type of rx packet
net: phy: marvell: add sleep time after enabling the loopback bit
net: ena: Fix error handling in ena_init()
kcm: close race conditions on sk_receive_queue
net: ionic: Fix error handling in ionic_init_module()
...
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kernel test robot reported warnings when build bonding module with
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/bonding/:
from ../drivers/net/bonding/bond_main.c:35:
In function ‘fortify_memcpy_chk’,
inlined from ‘iph_to_flow_copy_v4addrs’ at ../include/net/ip.h:566:2,
inlined from ‘bond_flow_ip’ at ../drivers/net/bonding/bond_main.c:3984:3:
../include/linux/fortify-string.h:413:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of f
ield (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
413 | __read_overflow2_field(q_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘fortify_memcpy_chk’,
inlined from ‘iph_to_flow_copy_v6addrs’ at ../include/net/ipv6.h:900:2,
inlined from ‘bond_flow_ip’ at ../drivers/net/bonding/bond_main.c:3994:3:
../include/linux/fortify-string.h:413:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of f
ield (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
413 | __read_overflow2_field(q_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This is because we try to copy the whole ip/ip6 address to the flow_key,
while we only point the to ip/ip6 saddr. Note that since these are UAPI
headers, __struct_group() is used to avoid the compiler warnings.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: c3f8324188fa ("net: Add full IPv6 addresses to flow_keys")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20221115142400.1204786-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
1) Fix sparse warning in the new nft_inner expression, reported
by Jakub Kicinski.
2) Incorrect vlan header check in nft_inner, from Peng Wu.
3) Two patches to pass reset boolean to expression dump operation,
in preparation for allowing to reset stateful expressions in rules.
This adds a new NFT_MSG_GETRULE_RESET command. From Phil Sutter.
4) Inconsistent indentation in nft_fib, from Jiapeng Chong.
5) Speed up siphash calculation in conntrack, from Florian Westphal.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: conntrack: use siphash_4u64
netfilter: rpfilter/fib: clean up some inconsistent indenting
netfilter: nf_tables: Introduce NFT_MSG_GETRULE_RESET
netfilter: nf_tables: Extend nft_expr_ops::dump callback parameters
netfilter: nft_inner: fix return value check in nft_inner_parse_l2l3()
netfilter: nft_payload: use __be16 to store gre version
====================
Link: https://lore.kernel.org/r/20221115095922.139954-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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For queueing packets in XDP we want to add a new redirect map type with
support for 64-bit indexes. To prepare fore this, expand the width of the
'key' argument to the bpf_redirect_map() helper. Since BPF registers are
always 64-bit, this should be safe to do after the fact.
Acked-by: Song Liu <song@kernel.org>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20221108140601.149971-3-toke@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Tag branch
* tag 'br-v6.2d' of git://linuxtv.org/hverkuil/media_tree: (35 commits)
media: saa7164: remove variable cnt
atomisp: fix potential NULL pointer dereferences
radio-terratec: Remove variable p
media: platform: s5p-mfc: Fix spelling mistake "mmaping" -> "mmapping"
media: platform: mtk-mdp3: remove unused VIDEO_MEDIATEK_VPU config
media: vivid: remove redundant assignment to variable checksum
media: cedrus: h264: Optimize mv col buffer allocation
media: cedrus: h265: Associate mv col buffers with buffer
media: mediatek: vcodec: fix h264 cavlc bitstream fail
media: cedrus: hevc: Fix offset adjustments
media: imx-jpeg: Fix Coverity issue in probe
media: v4l2-ioctl.c: Unify YCbCr/YUV terms in format descriptions
media: atomisp: Fix spelling mistake "mis-match" -> "mismatch"
media: c8sectpfe: Add missed header(s)
media: adv748x: afe: Select input port when initializing AFE
media: vimc: Update device configuration in the documentation
media: adv748x: Remove dead function declaration
media: mxl5005s: Make array RegAddr static const
media: atomisp: Fix spelling mistake "modee" -> "mode"
media: meson/vdec: always init coef_node_start
...
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Tag branch
* tag 'br-v6.2e' of git://linuxtv.org/hverkuil/media_tree: (29 commits)
media: davinci/vpbe: Fix a typo ("defualt_mode")
media: sun6i-csi: Remove unnecessary print function dev_err()
media: Documentation: Drop deprecated bytesused == 0
media: platform: exynos4-is: fix return value check in fimc_md_probe()
media: dvb-core: remove variable n, turn for-loop to while-loop
media: vivid: fix compose size exceed boundary
media: rkisp1: make const arrays ae_wnd_num and hist_wnd_num static
media: dvb-core: Fix UAF due to refcount races at releasing
media: rkvdec: Add required padding
media: aspeed: Extend debug message
media: aspeed: Support aspeed mode to reduce compressed data
media: Documentation: aspeed-video: Add user documentation for the aspeed-video driver
media: v4l2-ctrls: Reserve controls for ASPEED
media: v4l: Add definition for the Aspeed JPEG format
staging: media: tegra-video: fix device_node use after free
staging: media: tegra-video: fix chan->mipi value on error
media: cedrus: initialize controls a bit later
media: cedrus: prefer untiled capture format
media: cedrus: Remove cedrus_codec enum
media: cedrus: set codec ops immediately
...
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Analogous to NFT_MSG_GETOBJ_RESET, but for rules: Reset stateful
expressions like counters or quotas. The latter two are the only
consumers, adjust their 'dump' callbacks to respect the parameter
introduced earlier.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add the support on the map side to parse, recognize, verify, and build
metadata table for a new special field of the type struct bpf_list_head.
To parameterize the bpf_list_head for a certain value type and the
list_node member it will accept in that value type, we use BTF
declaration tags.
The definition of bpf_list_head in a map value will be done as follows:
struct foo {
struct bpf_list_node node;
int data;
};
struct map_value {
struct bpf_list_head head __contains(foo, node);
};
Then, the bpf_list_head only allows adding to the list 'head' using the
bpf_list_node 'node' for the type struct foo.
The 'contains' annotation is a BTF declaration tag composed of four
parts, "contains:name:node" where the name is then used to look up the
type in the map BTF, with its kind hardcoded to BTF_KIND_STRUCT during
the lookup. The node defines name of the member in this type that has
the type struct bpf_list_node, which is actually used for linking into
the linked list. For now, 'kind' part is hardcoded as struct.
This allows building intrusive linked lists in BPF, using container_of
to obtain pointer to entry, while being completely type safe from the
perspective of the verifier. The verifier knows exactly the type of the
nodes, and knows that list helpers return that type at some fixed offset
where the bpf_list_node member used for this list exists. The verifier
also uses this information to disallow adding types that are not
accepted by a certain list.
For now, no elements can be added to such lists. Support for that is
coming in future patches, hence draining and freeing items is done with
a TODO that will be resolved in a future patch.
Note that the bpf_list_head_free function moves the list out to a local
variable under the lock and releases it, doing the actual draining of
the list items outside the lock. While this helps with not holding the
lock for too long pessimizing other concurrent list operations, it is
also necessary for deadlock prevention: unless every function called in
the critical section would be notrace, a fentry/fexit program could
attach and call bpf_map_update_elem again on the map, leading to the
same lock being acquired if the key matches and lead to a deadlock.
While this requires some special effort on part of the BPF programmer to
trigger and is highly unlikely to occur in practice, it is always better
if we can avoid such a condition.
While notrace would prevent this, doing the draining outside the lock
has advantages of its own, hence it is used to also fix the deadlock
related problem.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20221114191547.1694267-5-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add an option to get migration data size by introducing a new migration
feature named VFIO_DEVICE_FEATURE_MIG_DATA_SIZE.
Upon VFIO_DEVICE_FEATURE_GET the estimated data length that will be
required to complete STOP_COPY is returned.
This option may better enable user space to consider before moving to
STOP_COPY whether it can meet the downtime SLA based on the returned
data.
The patch also includes the implementation for mlx5 and hisi for this
new option to make it feature complete for the existing drivers in this
area.
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Longfang Liu <liulongfang@huawei.com>
Link: https://lore.kernel.org/r/20221106174630.25909-2-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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The PCIE Data Object Exchange (DOE) mailbox is a protocol run over
configuration cycles. It assumes one initiator at a time. While the
kernel has control of the mailbox user space writes could interfere with
the kernel access.
Mark DOE mailbox config space exclusive when iterated by the CXL driver.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20220926215711.2893286-3-ira.weiny@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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The crc_val in the completion record should be 64 bits and not 32 bits.
Fixes: 4ac823e9cd85 ("dmaengine: idxd: fix delta_rec and crc size field for completion record")
Reported-by: Nirav N Shah <nirav.n.shah@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20221111012715.2031481-1-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Andrii Nakryiko says:
====================
bpf-next 2022-11-11
We've added 49 non-merge commits during the last 9 day(s) which contain
a total of 68 files changed, 3592 insertions(+), 1371 deletions(-).
The main changes are:
1) Veristat tool improvements to support custom filtering, sorting, and replay
of results, from Andrii Nakryiko.
2) BPF verifier precision tracking fixes and improvements,
from Andrii Nakryiko.
3) Lots of new BPF documentation for various BPF maps, from Dave Tucker,
Donald Hunter, Maryam Tahhan, Bagas Sanjaya.
4) BTF dedup improvements and libbpf's hashmap interface clean ups, from
Eduard Zingerman.
5) Fix veth driver panic if XDP program is attached before veth_open, from
John Fastabend.
6) BPF verifier clean ups and fixes in preparation for follow up features,
from Kumar Kartikeya Dwivedi.
7) Add access to hwtstamp field from BPF sockops programs,
from Martin KaFai Lau.
8) Various fixes for BPF selftests and samples, from Artem Savkov,
Domenico Cerasuolo, Kang Minchul, Rong Tao, Yang Jihong.
9) Fix redirection to tunneling device logic, preventing skb->len == 0, from
Stanislav Fomichev.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (49 commits)
selftests/bpf: fix veristat's singular file-or-prog filter
selftests/bpf: Test skops->skb_hwtstamp
selftests/bpf: Fix incorrect ASSERT in the tcp_hdr_options test
bpf: Add hwtstamp field for the sockops prog
selftests/bpf: Fix xdp_synproxy compilation failure in 32-bit arch
bpf, docs: Document BPF_MAP_TYPE_ARRAY
docs/bpf: Document BPF map types QUEUE and STACK
docs/bpf: Document BPF ARRAY_OF_MAPS and HASH_OF_MAPS
docs/bpf: Document BPF_MAP_TYPE_CPUMAP map
docs/bpf: Document BPF_MAP_TYPE_LPM_TRIE map
libbpf: Hashmap.h update to fix build issues using LLVM14
bpf: veth driver panics when xdp prog attached before veth_open
selftests: Fix test group SKIPPED result
selftests/bpf: Tests for btf_dedup_resolve_fwds
libbpf: Resolve unambigous forward declarations
libbpf: Hashmap interface update to allow both long and void* keys/values
samples/bpf: Fix sockex3 error: Missing BPF prog type
selftests/bpf: Fix u32 variable compared with less than zero
Documentation: bpf: Escape underscore in BPF type name prefix
selftests/bpf: Use consistent build-id type for liburandom_read.so
...
====================
Link: https://lore.kernel.org/r/20221111233733.1088228-1-andrii@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull io_uring fixes from Jens Axboe:
"Nothing major, just a few minor tweaks:
- Tweak for the TCP zero-copy io_uring self test (Pavel)
- Rather than use our internal cached value of number of CQ events
available, use what the user can see (Dylan)
- Fix a typo in a comment, added in this release (me)
- Don't allow wrapping while adding provided buffers (me)
- Fix a double poll race, and add a lockdep assertion for it too
(Pavel)"
* tag 'io_uring-6.1-2022-11-11' of git://git.kernel.dk/linux:
io_uring/poll: lockdep annote io_poll_req_insert_locked
io_uring/poll: fix double poll req->flags races
io_uring: check for rollover of buffer ID when providing buffers
io_uring: calculate CQEs from the user visible value
io_uring: fix typo in io_uring.h comment
selftests/net: don't tests batched TCP io_uring zc
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The bpf-tc prog has already been able to access the
skb_hwtstamps(skb)->hwtstamp. This patch extends the same hwtstamp
access to the sockops prog.
In sockops, the skb is also available to the bpf prog during
the BPF_SOCK_OPS_PARSE_HDR_OPT_CB event. There is a use case
that the hwtstamp will be useful to the sockops prog to better
measure the one-way-delay when the sender has put the tx
timestamp in the tcp header option.
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20221107230420.4192307-2-martin.lau@linux.dev
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
"Misc minor driver fixes and a big pile of at_hdmac driver fixes. More
work on this driver is done and sitting in next:
- Pile of at_hdmac driver rework which fixes many long standing
issues for this driver.
- couple of stm32 driver fixes for clearing structure and race fix
- idxd fixes for RO device state and batch size
- ti driver mem leak fix
- apple fix for grabbing channels in xlate
- resource leak fix in mv xor"
* tag 'dmaengine-fix-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (24 commits)
dmaengine: at_hdmac: Check return code of dma_async_device_register
dmaengine: at_hdmac: Fix impossible condition
dmaengine: at_hdmac: Don't allow CPU to reorder channel enable
dmaengine: at_hdmac: Fix completion of unissued descriptor in case of errors
dmaengine: at_hdmac: Fix descriptor handling when issuing it to hardware
dmaengine: at_hdmac: Fix concurrency over the active list
dmaengine: at_hdmac: Free the memset buf without holding the chan lock
dmaengine: at_hdmac: Fix concurrency over descriptor
dmaengine: at_hdmac: Fix concurrency problems by removing atc_complete_all()
dmaengine: at_hdmac: Protect atchan->status with the channel lock
dmaengine: at_hdmac: Do not call the complete callback on device_terminate_all
dmaengine: at_hdmac: Fix premature completion of desc in issue_pending
dmaengine: at_hdmac: Start transfer for cyclic channels in issue_pending
dmaengine: at_hdmac: Don't start transactions at tx_submit level
dmaengine: at_hdmac: Fix at_lli struct definition
dmaengine: stm32-dma: fix potential race between pause and resume
dmaengine: ti: k3-udma-glue: fix memory leak when register device fail
dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove()
dmaengine: apple-admac: Fix grabbing of channels in of_xlate
dmaengine: idxd: fix RO device state error after been disabled/reset
...
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drivers/net/can/pch_can.c
ae64438be192 ("can: dev: fix skb drop check")
1dd1b521be85 ("can: remove obsolete PCH CAN driver")
https://lore.kernel.org/all/20221110102509.1f7d63cc@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, wifi, can and bpf.
Current release - new code bugs:
- can: af_can: can_exit(): add missing dev_remove_pack() of
canxl_packet
Previous releases - regressions:
- bpf, sockmap: fix the sk->sk_forward_alloc warning
- wifi: mac80211: fix general-protection-fault in
ieee80211_subif_start_xmit()
- can: af_can: fix NULL pointer dereference in can_rx_register()
- can: dev: fix skb drop check, avoid o-o-b access
- nfnetlink: fix potential dead lock in nfnetlink_rcv_msg()
Previous releases - always broken:
- bpf: fix wrong reg type conversion in release_reference()
- gso: fix panic on frag_list with mixed head alloc types
- wifi: brcmfmac: fix buffer overflow in brcmf_fweh_event_worker()
- wifi: mac80211: set TWT Information Frame Disabled bit as 1
- eth: macsec offload related fixes, make sure to clear the keys from
memory
- tun: fix memory leaks in the use of napi_get_frags
- tun: call napi_schedule_prep() to ensure we own a napi
- tcp: prohibit TCP_REPAIR_OPTIONS if data was already sent
- ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to
network
- tipc: fix a msg->req tlv length check
- sctp: clear out_curr if all frag chunks of current msg are pruned,
avoid list corruption
- mctp: fix an error handling path in mctp_init(), avoid leaks"
* tag 'net-6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
eth: sp7021: drop free_netdev() from spl2sw_init_netdev()
MAINTAINERS: Move Vivien to CREDITS
net: macvlan: fix memory leaks of macvlan_common_newlink
ethernet: tundra: free irq when alloc ring failed in tsi108_open()
net: mv643xx_eth: disable napi when init rxq or txq failed in mv643xx_eth_open()
ethernet: s2io: disable napi when start nic failed in s2io_card_up()
net: atlantic: macsec: clear encryption keys from the stack
net: phy: mscc: macsec: clear encryption keys when freeing a flow
stmmac: dwmac-loongson: fix missing of_node_put() while module exiting
stmmac: dwmac-loongson: fix missing pci_disable_device() in loongson_dwmac_probe()
stmmac: dwmac-loongson: fix missing pci_disable_msi() while module exiting
cxgb4vf: shut down the adapter when t4vf_update_port_info() failed in cxgb4vf_open()
mctp: Fix an error handling path in mctp_init()
stmmac: intel: Update PCH PTP clock rate from 200MHz to 204.8MHz
net: cxgb3_main: disable napi when bind qsets failed in cxgb_up()
net: cpsw: disable napi in cpsw_ndo_open()
iavf: Fix VF driver counting VLAN 0 filters
ice: Fix spurious interrupt during removal of trusted VF
net/mlx5e: TC, Fix slab-out-of-bounds in parse_tc_actions
net/mlx5e: E-Switch, Fix comparing termination table instance
...
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ARM64 needs to dirty memory outside of a VCPU context when VGIC/ITS is
enabled. It's conflicting with that ring-based dirty page tracking always
requires a running VCPU context.
Introduce a new flavor of dirty ring that requires the use of both VCPU
dirty rings and a dirty bitmap. The expectation is that for non-VCPU
sources of dirty memory (such as the VGIC/ITS on arm64), KVM writes to
the dirty bitmap. Userspace should scan the dirty bitmap before migrating
the VM to the target.
Use an additional capability to advertise this behavior. The newly added
capability (KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP) can't be enabled before
KVM_CAP_DIRTY_LOG_RING_ACQ_REL on ARM64. In this way, the newly added
capability is treated as an extension of KVM_CAP_DIRTY_LOG_RING_ACQ_REL.
Suggested-by: Marc Zyngier <maz@kernel.org>
Suggested-by: Peter Xu <peterx@redhat.com>
Co-developed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Gavin Shan <gshan@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221110104914.31280-4-gshan@redhat.com
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Add the mask KVM_MSR_EXIT_REASON_VALID_MASK for the MSR exit reason
flags. This simplifies checks that validate these flags, and makes it
easier to introduce new flags in the future.
No functional change intended.
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Message-Id: <20220921151525.904162-3-aaronlewis@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Commit bc27fb68aaad ("include/uapi/linux/byteorder, swab: force inlining
of some byteswap operations") added __always_inline to swab functions
and commit 283d75737837 ("uapi/linux/stddef.h: Provide __always_inline to
userspace headers") added a definition of __always_inline for use in
exported headers when the kernel's compiler.h is not available.
However, since swab.h does not include stddef.h, if the header soup does
not indirectly include it, the definition of __always_inline is missing,
resulting in a compilation failure, which was observed compiling the
perf tool using exported headers containing this commit:
In file included from /usr/include/linux/byteorder/little_endian.h:12:0,
from /usr/include/asm/byteorder.h:14,
from tools/include/uapi/linux/perf_event.h:20,
from perf.h:8,
from builtin-bench.c:18:
/usr/include/linux/swab.h:160:8: error: unknown type name `__always_inline'
static __always_inline __u16 __swab16p(const __u16 *p)
Fix this by replacing the inclusion of linux/compiler.h with
linux/stddef.h to ensure that we pick up that definition if required,
without relying on it's indirect inclusion. compiler.h is then included
indirectly, via stddef.h.
Fixes: 283d75737837 ("uapi/linux/stddef.h: Provide __always_inline to userspace headers")
Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Petr Vaněk <arkamar@atlas.cz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit fix from Paul Moore:
"A small audit patch to fix an instance of undefined behavior in a
shift operator caused when shifting a signed value too far, the same
case as the lsm patch merged previously.
While the fix is trivial and I can't imagine it causing a problem in a
backport, I'm not explicitly marking it for stable on the off chance
that there is some system out there which is relying on some wonky
unexpected behavior which this patch could break; *if* it does break,
IMO it's better that to happen in a minor or -rcX release and not in a
stable backport"
* tag 'audit-pr-20221107' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: fix undefined behavior in bit shift for AUDIT_BIT
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull lsm fix from Paul Moore:
"A small capability patch to fix an instance of undefined behavior in a
shift operator caused when shifting a signed value too far.
While the fix is trivial and I can't imagine it causing a problem in a
backport, I'm not explicitly marking it for stable on the off chance
that there is some system out there which is relying on some wonky
unexpected behavior which this patch could break; *if* it does break,
IMO it's better that to happen in a minor or -rcX release and not in a
stable backport"
* tag 'lsm-pr-20221107' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
capabilities: fix undefined behavior in bit shift for CAP_TO_MASK
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This patch is to add helper support in act_ct for OVS actions=ct(alg=xxx)
offloading, which is corresponding to Commit cae3a2627520 ("openvswitch:
Allow attaching helpers to ct action") in OVS kernel part.
The difference is when adding TC actions family and proto cannot be got
from the filter/match, other than helper name in tb[TCA_CT_HELPER_NAME],
we also need to send the family in tb[TCA_CT_HELPER_FAMILY] and the
proto in tb[TCA_CT_HELPER_PROTO] to kernel.
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The previous attempt to augment carrier_down (see Link)
was not met with much enthusiasm so let's do the simple
thing of exposing what some devices already maintain.
Add a common ethtool statistic for link going down.
Currently users have to maintain per-driver mapping
to extract the right stat from the vendor-specific ethtool -S
stats. carrier_down does not fit the bill because it counts
a lot of software related false positives.
Add the statistic to the extended link state API to steer
vendors towards implementing all of it.
Implement for bnxt and all Linux-controlled PHYs. mlx5 and (possibly)
enic also have a counter for this but I leave the implementation
to their maintainers.
Link: https://lore.kernel.org/r/20220520004500.2250674-1-kuba@kernel.org
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20221104190125.684910-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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* git://linuxtv.org/sailus/media_tree: (47 commits)
media: i2c: ov4689: code cleanup
media: ov9650: Drop platform data code path
media: ov7670: Drop unused include
media: ov2640: Drop legacy includes
media: tc358746: add Toshiba TC358746 Parallel to CSI-2 bridge driver
media: dt-bindings: add bindings for Toshiba TC358746
phy: dphy: add support to calculate the timing based on hs_clk_rate
phy: dphy: refactor get_default_config
v4l: subdev: Warn if disabling streaming failed, return success
dw9768: Enable low-power probe on ACPI
media: i2c: imx290: Replace GAIN control with ANALOGUE_GAIN
media: i2c: imx290: Add crop selection targets support
media: i2c: imx290: Factor out format retrieval to separate function
media: i2c: imx290: Move registers with fixed value to init array
media: i2c: imx290: Create controls for fwnode properties
media: i2c: imx290: Implement HBLANK and VBLANK controls
media: i2c: imx290: Split control initialization to separate function
media: i2c: imx290: Fix max gain value
media: i2c: imx290: Add exposure time control
media: i2c: imx290: Define more register macros
...
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Just a basic s/thig/this swap, fixing up a typo introduced by a commit
added in the 6.1 release.
Fixes: 9cda70f622cd ("io_uring: introduce fixed buffer support for io_uring_cmd")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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