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PSC platform profile mode is only supported on Linux for AMD platforms.
Some older Intel platforms (e.g T490) are advertising it's capability
as Windows uses it - but on Linux we should only be using MMC profile
for Intel systems.
Add a check to prevent it being enabled incorrectly.
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20220627181449.3537-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Currently the active mode (PSC/MMC) is stored in an enum and queried
throughout the driver.
Other driver changes will enumerate additional submodes that are relevant
to be tracked, so instead track PSC/MMC in a single integer variable.
Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20220603170212.164963-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
On some Panasonic models the volume up/down/mute keypresses get
reported both through the Panasonic ACPI HKEY interface as well as
through the atkbd device.
Filter out the atkbd scan-codes for these to avoid reporting presses
twice.
Note normally we would leave the filtering of these to userspace by mapping
the scan-codes to KEY_UNKNOWN through /lib/udev/hwdb.d/60-keyboard.hwdb.
However in this case that would cause regressions since we were filtering
the Panasonic ACPI HKEY events before, so filter these in the kernel.
Fixes: ed83c9171829 ("platform/x86: panasonic-laptop: Resolve hotkey double trigger bug")
Reported-and-tested-by: Stefan Seyfried <seife+kernel@b1-systems.com>
Reported-and-tested-by: Kenneth Chan <kenneth.t.chan@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220624112340.10130-7-hdegoede@redhat.com
The brightness key-presses might also get reported by the ACPI video bus,
check for this and in this case don't report the presses to avoid reporting
2 presses for a single key-press.
Fixes: ed83c9171829 ("platform/x86: panasonic-laptop: Resolve hotkey double trigger bug")
Reported-and-tested-by: Stefan Seyfried <seife+kernel@b1-systems.com>
Reported-and-tested-by: Kenneth Chan <kenneth.t.chan@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220624112340.10130-6-hdegoede@redhat.com
In hindsight blindly throwing away most of the key-press events is not
a good idea. So revert commit ed83c9171829 ("platform/x86:
panasonic-laptop: Resolve hotkey double trigger bug").
Fixes: ed83c9171829 ("platform/x86: panasonic-laptop: Resolve hotkey double trigger bug")
Reported-and-tested-by: Stefan Seyfried <seife+kernel@b1-systems.com>
Reported-and-tested-by: Kenneth Chan <kenneth.t.chan@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220624112340.10130-5-hdegoede@redhat.com
Sort includes alphabetically, small cleanup patch in preparation of
further changes.
Fixes: ed83c9171829 ("platform/x86: panasonic-laptop: Resolve hotkey double trigger bug")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220624112340.10130-4-hdegoede@redhat.com
In the definition of panasonic_keymap[] the key codes are given in
decimal, later checks are done with hexadecimal values, which does
not help in understanding the code.
Additionally use two helper variables to shorten the code and make
the logic more obvious.
Fixes: ed83c9171829 ("platform/x86: panasonic-laptop: Resolve hotkey double trigger bug")
Signed-off-by: Stefan Seyfried <seife+kernel@b1-systems.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220624112340.10130-3-hdegoede@redhat.com
Some systems have an ACPI video bus but not ACPI video devices with
backlight capability. On these devices brightness key-presses are
(logically) not reported through the ACPI video bus.
Change how acpi_video_handles_brightness_key_presses() determines if
brightness key-presses are handled by the ACPI video driver to avoid
vendor specific drivers/platform/x86 drivers filtering out their
brightness key-presses even though they are the only ones reporting
these presses.
Fixes: ed83c9171829 ("platform/x86: panasonic-laptop: Resolve hotkey double trigger bug")
Reported-and-tested-by: Stefan Seyfried <seife+kernel@b1-systems.com>
Reported-and-tested-by: Kenneth Chan <kenneth.t.chan@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220624112340.10130-2-hdegoede@redhat.com
The BPF subsystem consists of a large number of pieces. There is not a
single person that understands it all. Yet reviews are crucially important
for the BPF community to provide productive quality feedback to contributors
in a timely manner and therefore to ultimately expand the number of active
developers in the community.
So far, the BPF community had a two-stage review system, that is, a weekly
rotation among 7 developers (Alexei, Daniel, Andrii, Martin, Song, Yonghong,
John) as a first-level review of all inbound patches accompanied by a BPF CI
system which runs the in-tree BPF selftests to check for regressions for
every new patch, and then, a final check by Alexei, Daniel, Andrii to apply
the patches to either bpf or bpf-next trees.
This system worked well for the last ~3.5 years, but clearly reaches its
limits these days as it does not scale enough. Especially, as we also need
to allow enough room for every developer to contribute patches themselves,
integrate with their day to day job, and in particular avoid burnout. We
want to better scale both horizontally and vertically going forward.
On the horizontal scale, we are adding more developers (KP, Stan, Hao, Jiri)
to the overall core reviewer team, thus growing to 11 people in total. The
weekly rotation for the horizontal oncall reviewer is shortened to 1/2 week
(Mo - Wed and Thur - Fri). Instead of just patches, the coverage however
extends also generally to triage and reply to mailing list traffic (e.g. RFCs,
questions, etc).
On the vertical scale, there is clearly a need for deep expertise areas to
assign dedicated maintainer/reviewer teams that are responsible for code
reviews and help with design of individual building blocks. To some degree
we have been doing this implicitly, but the point is to formalize the teams
and commitment.
There is an overlap between areas and boundaries are intentionally grey. These
additional entries provide a guidance on who has to look at the patches. The
patch series which span multiple areas will be looked at by multiple people.
The vertical review with areas of deep expertise are bundled at the same time
with the horizontal side.
This patch cleans up a bit the BPF entries, adds mentioned developers to
the horizontal scale and creates new sub-entries with teams for developers
committing to the above outlined vertical scale. Also, pw.git tools we use
for BPF tree maintenance have been updated with a new pw-schedule script to
semi-automate vertical oncall review rotation.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <martin.lau@linux.dev>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Mykola Lysenko <mykolal@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: KP Singh <kpsingh@kernel.org>
Acked-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Hao Luo <haoluo@google.com>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Link: https://git.kernel.org/pub/scm/linux/kernel/git/dborkman/pw.git
Link: https://lore.kernel.org/bpf/5bdc73e7f5a087299589944fa074563cdf2c2c1a.1656353995.git.daniel@iogearbox.net
Commit ceaf69f8eadc ("fanotify: do not allow setting dirent events in
mask of non-dir") added restrictions about setting dirent events in the
mask of a non-dir inode mark, which does not make any sense.
For backward compatibility, these restictions were added only to new
(v5.17+) APIs.
It also does not make any sense to set the flags FAN_EVENT_ON_CHILD or
FAN_ONDIR in the mask of a non-dir inode. Add these flags to the
dir-only restriction of the new APIs as well.
Move the check of the dir-only flags for new APIs into the helper
fanotify_events_supported(), which is only called for FAN_MARK_ADD,
because there is no need to error on an attempt to remove the dir-only
flags from non-dir inode.
Fixes: ceaf69f8eadc ("fanotify: do not allow setting dirent events in mask of non-dir")
Link: https://lore.kernel.org/linux-fsdevel/20220627113224.kr2725conevh53u4@quack3.lan/
Link: https://lore.kernel.org/r/20220627174719.2838175-1-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
When routes corresponding to addresses are restored by
fixup_permanent_addr(), the dst_nopolicy parameter was not set.
The typical use case is a user that configures an address on a down
interface and then put this interface up.
Let's take care of this flag in addrconf_f6i_alloc(), so that every callers
benefit ont it.
CC: stable@kernel.org
CC: David Forster <dforster@brocade.com>
Fixes: df789fe75206 ("ipv6: Provide ipv6 version of "disable_policy" sysctl")
Reported-by: Siwar Zitouni <siwar.zitouni@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20220623120015.32640-1-nicolas.dichtel@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We should respect link partner capabilities and not force flow control
support on every link. Even more, in current state the MAC driver do not
advertises pause support so we should not keep flow control enabled at
all.
Fixes: e532a096be0e ("net: usb: asix: ax88772: add phylib support")
Reported-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Tested-by: Anton Lundin <glance@acc.umu.se>
Link: https://lore.kernel.org/r/20220624075139.3139300-2-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If cable is attached after probe sequence, the usbnet framework would
not automatically start processing RX packets except at least one
packet was transmitted.
On systems with any kind of address auto configuration this issue was
not detected, because some packets are send immediately after link state
is changed to "running".
With this patch we will notify usbnet about link status change provided by the
PHYlib.
Fixes: e532a096be0e ("net: usb: asix: ax88772: add phylib support")
Reported-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Tested-by: Anton Lundin <glance@acc.umu.se>
Link: https://lore.kernel.org/r/20220624075139.3139300-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Mails to Charles get an auto reply, that he is no longer working at
Eff'Innov technologies. Drop the entry and mark the driver as orphaned.
Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220626200039.4062784-1-michael@walle.cc
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This should be bitwise operator not logical.
Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization")
Signed-off-by: Shreenidhi Shedi <sshedi@vmware.com>
Link: https://lore.kernel.org/r/20220626132947.3992423-1-sshedi@vmware.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Victor Nogueira says:
====================
Notify user space if any actions were flushed before error
This patch series fixes the behaviour of actions flush so that the
kernel always notifies user space whenever it deletes actions during a
flush operation, even if it didn't flush all the actions. This series
also introduces tdc tests to verify this new behaviour.
====================
Link: https://lore.kernel.org/r/20220623140742.684043-1-victor@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add tdc test cases to verify new flush behaviour is correct, which do
the following:
- Try to flush only one action which is being referenced by a filter
- Try to flush three actions where the last one (index 3) is being
referenced by a filter
Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If during an action flush operation one of the actions is still being
referenced, the flush operation is aborted and the kernel returns to
user space with an error. However, if the kernel was able to flush, for
example, 3 actions and failed on the fourth, the kernel will not notify
user space that it deleted 3 actions before failing.
This patch fixes that behaviour by notifying user space of how many
actions were deleted before flush failed and by setting extack with a
message describing what happened.
Fixes: 55334a5db5cd ("net_sched: act: refuse to remove bound action outside")
Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
epic_close() calls epic_rx() and uses dma buffer, but in epic_remove_one()
we already freed the dma buffer. To fix this issue, reorder function calls
like in the .probe function.
BUG: KASAN: use-after-free in epic_rx+0xa6/0x7e0 [epic100]
Call Trace:
epic_rx+0xa6/0x7e0 [epic100]
epic_close+0xec/0x2f0 [epic100]
unregister_netdev+0x18/0x20
epic_remove_one+0xaa/0xf0 [epic100]
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Yilun Wu <yiluwu@cs.stonybrook.edu>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Reviewed-by: Francois Romieu <romieu@fr.zoreil.com>
Link: https://lore.kernel.org/r/20220627043351.25615-1-ztong0001@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
While looking at a syzbot report I noticed the NAPI only gets
disabled before it's deleted. I think that user can detach
the queue before destroying the device and the NAPI will never
be stopped.
Fixes: 943170998b20 ("tun: enable NAPI for TUN/TAP driver")
Acked-by: Petar Penkov <ppenkov@aviatrix.com>
Link: https://lore.kernel.org/r/20220623042105.2274812-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fixes all over the place, most notably we are disabling
IRQ hardening (again!).
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Fixes all over the place, most notably we are disabling
IRQ hardening (again!)"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_ring: make vring_create_virtqueue_split prettier
vhost-vdpa: call vhost_vdpa_cleanup during the release
virtio_mmio: Restore guest page size on resume
virtio_mmio: Add missing PM calls to freeze/restore
caif_virtio: fix race between virtio_device_ready() and ndo_open()
virtio-net: fix race between ndo_open() and virtio_device_ready()
virtio: disable notification hardening by default
virtio: Remove unnecessary variable assignments
virtio_ring : keep used_wrap_counter in vq->last_used_idx
vduse: Tie vduse mgmtdev and its device
vdpa/mlx5: Initialize CVQ vringh only once
vdpa/mlx5: Update Control VQ callback information
EXPORT_SYMBOL and __init is a bad combination because the .init.text
section is freed up after the initialization. Hence, modules cannot
use symbols annotated __init. The access to a freed symbol may end up
with kernel panic.
modpost used to detect it, but it had been broken for a decade.
Commit 28438794aba4 ("modpost: fix section mismatch check for exported
init/exit sections") fixed it so modpost started to warn it again, then
this showed up:
MODPOST vmlinux.symvers
WARNING: modpost: vmlinux.o(___ksymtab_gpl+tick_nohz_full_setup+0x0): Section mismatch in reference from the variable __ksymtab_tick_nohz_full_setup to the function .init.text:tick_nohz_full_setup()
The symbol tick_nohz_full_setup is exported and annotated __init
Fix this by removing the __init annotation of tick_nohz_full_setup or drop the export.
Drop the export because tick_nohz_full_setup() is only called from the
built-in code in kernel/sched/isolation.c.
Fixes: ae9e557b5be2 ("time: Export tick start/stop functions for rcutorture")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When br_netfilter module is loaded, skbs may be diverted to the
ipv4/ipv6 hooks, just like as if we were routing.
Unfortunately, bridge filter hooks with priority 0 may be skipped
in this case.
Example:
1. an nftables bridge ruleset is loaded, with a prerouting
hook that has priority 0.
2. interface is added to the bridge.
3. no tcp packet is ever seen by the bridge prerouting hook.
4. flush the ruleset
5. load the bridge ruleset again.
6. tcp packets are processed as expected.
After 1) the only registered hook is the bridge prerouting hook, but its
not called yet because the bridge hasn't been brought up yet.
After 2), hook order is:
0 br_nf_pre_routing // br_netfilter internal hook
0 chain bridge f prerouting // nftables bridge ruleset
The packet is diverted to br_nf_pre_routing.
If call-iptables is off, the nftables bridge ruleset is called as expected.
But if its enabled, br_nf_hook_thresh() will skip it because it assumes
that all 0-priority hooks had been called previously in bridge context.
To avoid this, check for the br_nf_pre_routing hook itself, we need to
resume directly after it, even if this hook has a priority of 0.
Unfortunately, this still results in different packet flow.
With this fix, the eval order after in 3) is:
1. br_nf_pre_routing
2. ip(6)tables (if enabled)
3. nftables bridge
but after 5 its the much saner:
1. nftables bridge
2. br_nf_pre_routing
3. ip(6)tables (if enabled)
Unfortunately I don't see a solution here:
It would be possible to move br_nf_pre_routing to a higher priority
so that it will be called later in the pipeline, but this also impacts
ebtables evaluation order, and would still result in this very ordering
problem for all nftables-bridge hooks with the same priority as the
br_nf_pre_routing one.
Searching back through the git history I don't think this has
ever behaved in any other way, hence, no fixes-tag.
Reported-by: Radim Hrazdil <rhrazdil@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
When verdict is NF_STOLEN, the skb might have been freed.
When tracing is enabled, this can result in a use-after-free:
1. access to skb->nf_trace
2. access to skb->mark
3. computation of trace id
4. dump of packet payload
To avoid 1, keep a cached copy of skb->nf_trace in the
trace state struct.
Refresh this copy whenever verdict is != STOLEN.
Avoid 2 by skipping skb->mark access if verdict is STOLEN.
3 is avoided by precomputing the trace id.
Only dump the packet when verdict is not "STOLEN".
Reported-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This patch fixes a race condition.
nft_rhash_update() might fail for two reasons:
- Element already exists in the hashtable.
- Another packet won race to insert an entry in the hashtable.
In both cases, new() has already bumped the counter via atomic_add_unless(),
therefore, decrement the set element counter.
Fixes: 22fe54d5fefc ("netfilter: nf_tables: add support for dynamic set updates")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The Ideapad 5 15ITL05 uses DYTC version 4 for platform-profile
control. This has been tested successfully with the ideapad-laptop
DYTC version 5 code; Add the Ideapad 5 15ITL05 to the
ideapad_dytc_v4_allow_table[].
Fixes: 599482c58ebd ("platform/x86: ideapad-laptop: Add platform support for Ideapad 5 Pro 16ACH6-82L5")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213297
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220627130850.313537-1-hdegoede@redhat.com
Add some spaces to vring_alloc_queue(make it look prettier).
Signed-off-by: Deming Wang <wangdeming@inspur.com>
Message-Id: <20220622192306.4371-1-wangdeming@inspur.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Before commit 3d5698793897 ("vhost-vdpa: introduce asid based IOTLB")
we call vhost_vdpa_iotlb_free() during the release to clean all regions
mapped in the iotlb.
That commit removed vhost_vdpa_iotlb_free() and added vhost_vdpa_cleanup()
to do some cleanup, including deleting all mappings, but we forgot to call
it in vhost_vdpa_release().
This causes that if an application does not remove all mappings explicitly
(or it crashes), the mappings remain in the iotlb and subsequent
applications may fail if they map the same addresses.
Calling vhost_vdpa_cleanup() also fixes a memory leak since we are not
freeing `v->vdev.vqs` during the release from the same commit.
Since vhost_vdpa_cleanup() calls vhost_dev_cleanup() we can remove its
call from vhost_vdpa_release().
Fixes: 3d5698793897 ("vhost-vdpa: introduce asid based IOTLB")
Cc: gautam.dawar@xilinx.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20220622151407.51232-1-sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Virtio devices might lose their state when the VMM is restarted
after a suspend to disk (hibernation) cycle. This means that the
guest page size register must be restored for the virtio_mmio legacy
interface, since otherwise the virtio queues are not functional.
This is particularly problematic for QEMU that currently still defaults
to using the legacy interface for virtio_mmio. Write the guest page
size register again in virtio_mmio_restore() to make legacy virtio_mmio
devices work correctly after hibernation.
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Message-Id: <20220621110621.3638025-3-stephan.gerhold@kernkonzept.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Most virtio drivers provide freeze/restore callbacks to finish up
device usage before suspend and to reinitialize the virtio device after
resume. However, these callbacks are currently only called when using
virtio_pci. virtio_mmio does not have any PM ops defined.
This causes problems for example after suspend to disk (hibernation),
since the virtio devices might lose their state after the VMM is
restarted. Calling virtio_device_freeze()/restore() ensures that
the virtio devices are re-initialized correctly.
Fix this by implementing the dev_pm_ops for virtio_mmio,
similar to virtio_pci_common.
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Message-Id: <20220621110621.3638025-2-stephan.gerhold@kernkonzept.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
We currently depend on probe() calling virtio_device_ready() -
which happens after netdev
registration. Since ndo_open() can be called immediately
after register_netdev, this means there exists a race between
ndo_open() and virtio_device_ready(): the driver may start to use the
device (e.g. TX) before DRIVER_OK which violates the spec.
Fix this by switching to use register_netdevice() and protect the
virtio_device_ready() with rtnl_lock() to make sure ndo_open() can
only be called after virtio_device_ready().
Fixes: 0d2e1a2926b18 ("caif_virtio: Introduce caif over virtio")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220620051115.3142-3-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
We currently call virtio_device_ready() after netdev
registration. Since ndo_open() can be called immediately
after register_netdev, this means there exists a race between
ndo_open() and virtio_device_ready(): the driver may start to use the
device before DRIVER_OK which violates the spec.
Fix this by switching to use register_netdevice() and protect the
virtio_device_ready() with rtnl_lock() to make sure ndo_open() can
only be called after virtio_device_ready().
Fixes: 4baf1e33d0842 ("virtio_net: enable VQs early")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220617072949.30734-1-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Shuang Li reported a NULL pointer dereference crash:
[] BUG: kernel NULL pointer dereference, address: 0000000000000068
[] RIP: 0010:tipc_link_is_up+0x5/0x10 [tipc]
[] Call Trace:
[] <IRQ>
[] tipc_bcast_rcv+0xa2/0x190 [tipc]
[] tipc_node_bc_rcv+0x8b/0x200 [tipc]
[] tipc_rcv+0x3af/0x5b0 [tipc]
[] tipc_udp_recv+0xc7/0x1e0 [tipc]
It was caused by the 'l' passed into tipc_bcast_rcv() is NULL. When it
creates a node in tipc_node_check_dest(), after inserting the new node
into hashtable in tipc_node_create(), it creates the bc link. However,
there is a gap between this insert and bc link creation, a bc packet
may come in and get the node from the hashtable then try to dereference
its bc link, which is NULL.
This patch is to fix it by moving the bc link creation before inserting
into the hashtable.
Note that for a preliminary node becoming "real", the bc link creation
should also be called before it's rehashed, as we don't create it for
preliminary nodes.
Fixes: 4cbf8ac2fe5a ("tipc: enable creating a "preliminary" node")
Reported-by: Shuang Li <shuali@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Unlike release_mem_region(), a call to release_resource() does not
free the resource, so it has to be freed explicitly to avoid a memory
leak.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 455cd867b85b ("platform/x86: thinkpad_acpi: Add a s2idle resume quirk for a number of laptops")
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mark Gross <markgross@kernel.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220621155511.5b266395@endymion.delvare
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This should return PTR_ERR() instead of IS_ERR(). Also "dev->client"
has been set to NULL by this point so it returns 0/success so preserve
the error code earlier.
Fixes: 662f24826f95 ("platform/mellanox: Add support for new SN2201 system")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/YqmUGwmPK7cPolk/@kili
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add Alder Lake N (ADL-N) to the list of the platforms that Intel's
PMC core driver supports. Alder Lake N reuses all the TigerLake PCH IPs.
Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com>
Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>
Link: https://lore.kernel.org/r/20220615002751.3371730-1-gayatri.kammela@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
A number of fixes have accumulated, but they are largely for
harmless issues:
- Several OF node leak fixes
- A fix to the Exynos7885 UART clock description
- DTS fixes to prevent boot failures on TI AM64 and J721s2
- Bus probe error handling fixes for Baikal-T1
- A fixup to the way STM32 SoCs use separate dts files for
different firmware stacks
- Multiple code fixes for Arm SCMI firmware, all dealing with
robustness of the implementation
- Multiple NXP i.MX devicetree fixes, addressing incorrect
data in DT nodes
- Three updates to the MAINTAINERS file, including Florian
Fainelli taking over BCM283x/BCM2711 (Raspberry Pi)
from Nicolas Saenz Julienne
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Merge tag 'soc-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"A number of fixes have accumulated, but they are largely for harmless
issues:
- Several OF node leak fixes
- A fix to the Exynos7885 UART clock description
- DTS fixes to prevent boot failures on TI AM64 and J721s2
- Bus probe error handling fixes for Baikal-T1
- A fixup to the way STM32 SoCs use separate dts files for different
firmware stacks
- Multiple code fixes for Arm SCMI firmware, all dealing with
robustness of the implementation
- Multiple NXP i.MX devicetree fixes, addressing incorrect data in DT
nodes
- Three updates to the MAINTAINERS file, including Florian Fainelli
taking over BCM283x/BCM2711 (Raspberry Pi) from Nicolas Saenz
Julienne"
* tag 'soc-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
ARM: dts: aspeed: nuvia: rename vendor nuvia to qcom
arm: mach-spear: Add missing of_node_put() in time.c
ARM: cns3xxx: Fix refcount leak in cns3xxx_init
MAINTAINERS: Update email address
arm64: dts: ti: k3-am64-main: Remove support for HS400 speed mode
arm64: dts: ti: k3-j721s2: Fix overlapping GICD memory region
ARM: dts: bcm2711-rpi-400: Fix GPIO line names
bus: bt1-axi: Don't print error on -EPROBE_DEFER
bus: bt1-apb: Don't print error on -EPROBE_DEFER
ARM: Fix refcount leak in axxia_boot_secondary
ARM: dts: stm32: move SCMI related nodes in a dedicated file for stm32mp15
soc: imx: imx8m-blk-ctrl: fix display clock for LCDIF2 power domain
ARM: dts: imx6qdl-colibri: Fix capacitive touch reset polarity
ARM: dts: imx6qdl: correct PU regulator ramp delay
firmware: arm_scmi: Fix incorrect error propagation in scmi_voltage_descriptors_get
firmware: arm_scmi: Avoid using extended string-buffers sizes if not necessary
firmware: arm_scmi: Fix SENSOR_AXIS_NAME_GET behaviour when unsupported
ARM: dts: imx7: Move hsic_phy power domain to HSIC PHY node
soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe
MAINTAINERS: Update BCM2711/BCM2835 maintainer
...
Fixes for post-5.18 changes:
- fix for a damon boot hang, from SeongJae
- fix for a kfence warning splat, from Jason Donenfeld
- fix for zero-pfn pinning, from Alex Williamson
- fix for fallocate hole punch clearing, from Mike Kravetz
Fixes pre-5.18 material:
- fix for a performance regression, from Marcelo
- fix for a hwpoisining BUG from zhenwei pi
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Merge tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
"Minor things, mainly - mailmap updates, MAINTAINERS updates, etc.
Fixes for this merge window:
- fix for a damon boot hang, from SeongJae
- fix for a kfence warning splat, from Jason Donenfeld
- fix for zero-pfn pinning, from Alex Williamson
- fix for fallocate hole punch clearing, from Mike Kravetz
Fixes for previous releases:
- fix for a performance regression, from Marcelo
- fix for a hwpoisining BUG from zhenwei pi"
* tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: add entry for Christian Marangi
mm/memory-failure: disable unpoison once hw error happens
hugetlbfs: zero partial pages during fallocate hole punch
mm: memcontrol: reference to tools/cgroup/memcg_slabinfo.py
mm: re-allow pinning of zero pfns
mm/kfence: select random number before taking raw lock
MAINTAINERS: add maillist information for LoongArch
MAINTAINERS: update MM tree references
MAINTAINERS: update Abel Vesa's email
MAINTAINERS: add MEMORY HOT(UN)PLUG section and add David as reviewer
MAINTAINERS: add Miaohe Lin as a memory-failure reviewer
mailmap: add alias for jarkko@profian.com
mm/damon/reclaim: schedule 'damon_reclaim_timer' only after 'system_wq' is initialized
kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal
mm: lru_cache_disable: use synchronize_rcu_expedited
mm/page_isolation.c: fix one kernel-doc comment
- Enable ignore_missing_thread in 'perf stat', enabling counting with '--pid'
when threads disappear during counting session setup.
- Adjust output data offset for backward compatibility in 'perf inject'.
- Fix missing free in copy_kcore_dir() in 'perf inject'.
- Fix caching files with a wrong build ID.
- Sync drm, cpufeatures, vhost and svn headers with the kernel.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.19-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Enable ignore_missing_thread in 'perf stat', enabling counting with
'--pid' when threads disappear during counting session setup
- Adjust output data offset for backward compatibility in 'perf inject'
- Fix missing free in copy_kcore_dir() in 'perf inject'
- Fix caching files with a wrong build ID
- Sync drm, cpufeatures, vhost and svn headers with the kernel
* tag 'perf-tools-fixes-for-v5.19-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
tools headers UAPI: Synch KVM's svm.h header with the kernel
tools include UAPI: Sync linux/vhost.h with the kernel sources
perf stat: Enable ignore_missing_thread
perf inject: Adjust output data offset for backward compatibility
perf trace beauty: Fix generation of errno id->str table on ALT Linux
perf build-id: Fix caching files with a wrong build ID
tools headers cpufeatures: Sync with the kernel sources
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
perf inject: Fix missing free in copy_kcore_dir()
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Merge tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- zoned relocation fixes:
- fix critical section end for extent writeback, this could lead
to out of order write
- prevent writing to previous data relocation block group if space
gets low
- reflink fixes:
- fix race between reflinking and ordered extent completion
- proper error handling when block reserve migration fails
- add missing inode iversion/mtime/ctime updates on each iteration
when replacing extents
- fix deadlock when running fsync/fiemap/commit at the same time
- fix false-positive KCSAN report regarding pid tracking for read locks
and data race
- minor documentation update and link to new site
* tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Documentation: update btrfs list of features and link to readthedocs.io
btrfs: fix deadlock with fsync+fiemap+transaction commit
btrfs: don't set lock_owner when locking extent buffer for reading
btrfs: zoned: fix critical section of relocation inode writeback
btrfs: zoned: prevent allocation from previous data relocation BG
btrfs: do not BUG_ON() on failure to migrate space when replacing extents
btrfs: add missing inode updates on each iteration when replacing extents
btrfs: fix race between reflinking and ordered extent completion
- pass the correct size to dma_set_encrypted() when freeing memory
(Dexuan Cui)
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Merge tag 'dma-mapping-5.19-2022-06-26' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fix from Christoph Hellwig:
- pass the correct size to dma_set_encrypted() when freeing memory
(Dexuan Cui)
* tag 'dma-mapping-5.19-2022-06-26' of git://git.infradead.org/users/hch/dma-mapping:
dma-direct: use the correct size for dma_set_encrypted()
Two bug fixes for the pxa3xx and intelfb drivers:
- pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write
- intelfb: Initialize value of stolen size
The other changes are small cleanups, simplifications and documentation
updates to the cirrusfb, skeletonfb, omapfb, intelfb, au1100fb and
simplefb drivers.
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Merge tag 'for-5.19/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
"Two bug fixes for the pxa3xx and intelfb drivers:
- pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write
- intelfb: Initialize value of stolen size
The other changes are small cleanups, simplifications and
documentation updates to the cirrusfb, skeletonfb, omapfb,
intelfb, au1100fb and simplefb drivers"
* tag 'for-5.19/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
video: fbdev: omap: Remove duplicate 'the' in comment
video: fbdev: omapfb: Align '*' in comment
video: fbdev: simplefb: Check before clk_put() not needed
video: fbdev: au1100fb: Drop unnecessary NULL ptr check
video: fbdev: pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write
video: fbdev: skeletonfb: Convert to generic power management
video: fbdev: cirrusfb: Remove useless reference to PCI power management
video: fbdev: intelfb: Initialize value of stolen size
video: fbdev: intelfb: Use aperture size from pci_resource_len
video: fbdev: skeletonfb: Fix syntax errors in comments
Three important fixes:
- enable ARCH_HAS_STRICT_MODULE_RWX to prevent a boot crash on c8000 machines
- flush all mappings of a shared anonymous page on PA8800/8900 machines via
flushing the whole data cache. This may slow down such machines but
makes sure that the cache is consistent
- Fix duplicate definition build error regarding fb_is_primary_device()
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Merge tag 'for-5.19/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture fixes from Helge Deller:
- enable ARCH_HAS_STRICT_MODULE_RWX to prevent a boot crash on c8000
machines
- flush all mappings of a shared anonymous page on PA8800/8900 machines
via flushing the whole data cache. This may slow down such machines
but makes sure that the cache is consistent
- Fix duplicate definition build error regarding fb_is_primary_device()
* tag 'for-5.19/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Enable ARCH_HAS_STRICT_MODULE_RWX
parisc: Fix flush_anon_page on PA8800/PA8900
parisc: align '*' in comment in math-emu code
parisc/stifb: Fix fb_is_primary_device() only available with CONFIG_FB_STI
- fix OF reference leaks in xtensa arch code
- replace '.bss' with '.section .bss' to fix entry.S build with old
assembler
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Merge tag 'xtensa-20220626' of https://github.com/jcmvbkbc/linux-xtensa
Pull xtensa fixes from Max Filippov:
- fix OF reference leaks in xtensa arch code
- replace '.bss' with '.section .bss' to fix entry.S build with old
assembler
* tag 'xtensa-20220626' of https://github.com/jcmvbkbc/linux-xtensa:
xtensa: change '.bss' to '.section .bss'
xtensa: xtfpga: Fix refcount leak bug in setup
xtensa: Fix refcount leak bug in time.c
- A fix for a CMA change that broke booting guests with > 2G RAM on Power8 hosts.
- Fix the RTAS call filter to allow a special case that applications rely on.
- A change to our execve path, to make the execve syscall exit tracepoint work.
- Three fixes to wire up our various RNGs earlier in boot so they're available for use in
the initial seeding in random_init().
- A build fix for when KASAN is enabled along with STRUCTLEAK_BYREF_ALL.
Thanks to: Andrew Donnellan, Aneesh Kumar K.V, Christophe Leroy, Jason A. Donenfeld,
Nathan Lynch, Naveen N. Rao, Sathvika Vasireddy, Sumit Dubey2, Tyrel Datwyler, Zi Yan.
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Merge tag 'powerpc-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- A fix for a CMA change that broke booting guests with > 2G RAM on
Power8 hosts.
- Fix the RTAS call filter to allow a special case that applications
rely on.
- A change to our execve path, to make the execve syscall exit
tracepoint work.
- Three fixes to wire up our various RNGs earlier in boot so they're
available for use in the initial seeding in random_init().
- A build fix for when KASAN is enabled along with
STRUCTLEAK_BYREF_ALL.
Thanks to Andrew Donnellan, Aneesh Kumar K.V, Christophe Leroy, Jason
Donenfeld, Nathan Lynch, Naveen N. Rao, Sathvika Vasireddy, Sumit
Dubey2, Tyrel Datwyler, and Zi Yan.
* tag 'powerpc-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powernv: wire up rng during setup_arch
powerpc/prom_init: Fix build failure with GCC_PLUGIN_STRUCTLEAK_BYREF_ALL and KASAN
powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address
powerpc: Enable execve syscall exit tracepoint
powerpc/pseries: wire up rng during setup_arch()
powerpc/microwatt: wire up rng during setup_arch()
powerpc/mm: Move CMA reservations after initmem_init()
