The driver expects the firmware to report TX status within 500ms.
However, a timeout can be triggered when the hardware performs
background scans while under TX load. During these scans, the firmware
stays off-channel for periods exceeding 500ms, delaying the delivery of
TX reports back to the driver.
When this occurs, the purge timer fires prematurely and drops the
tracking skbs from the queue. This results in the host stack
interpreting the missing status as packet loss, leading to TCP window
collapse. In testing with iperf3, this causes throughput to drop from
~90 Mbps to near-zero for approximately 2 seconds until the connection
recovers.
Increase RTW_TX_PROBE_TIMEOUT to 2500ms for RTL8723DU. This duration is
sufficient to accommodate off-channel dwell time during full background
scans, ensuring the purge timer only trips during genuine firmware
lockups and preventing unnecessary TCP retransmission cycles.
Fixes: a82dfd33d1 ("wifi: rtw88: Add common USB chip support")
Cc: stable@vger.kernel.org
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Luka Gejak <luka.gejak@linux.dev>
Signed-off-by: Luka Gejak <luka.gejak@linux.dev>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260518142311.10328-1-luka.gejak@linux.dev
A user with MLO-capable router reports:
[ 753.080409] rtw89_8922au_git 2-2:1.0: Cannot map qsel to dma v2: 26
[ 753.080417] rtw89_8922au_git 2-2:1.0: Cannot map qsel to dma v2: 26
[ 813.649426] rtw89_8922au_git 2-2:1.0: Cannot map qsel to dma v2: 26
[ 813.649445] rtw89_8922au_git 2-2:1.0: Cannot map qsel to dma v2: 26
[ 813.855983] rtw89_8922au_git 2-2:1.0: Cannot map qsel to dma v2: 26
Map RTW89_TX_QSEL_B1_MGMT and RTW89_TX_QSEL_B1_HI to RTW89_TXCH_CH10.
This is probably the right channel for these queues.
This function is also used for RTL8852AU and RTL8852CU, but those
currently aren't used in DBCC mode with rtw89 so it makes no difference
for them.
Link: https://github.com/morrownr/rtw89/issues/83#issuecomment-4314735734
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/0c8e0cf1-13e9-4c67-a67f-5f6f79fd0658@gmail.com
The existing quota set is for RTL8922DE-VS, so rename the existing tables.
Add new quota set for RTL8922DE, containing more memory to yield better
performance, so rearrange quota accordingly.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260515014433.16168-14-pkshih@realtek.com
RTL8922D has many variants, using different quota tables. Consolidate the
quota data into a struct, and then select corresponding table for the
chip variant.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260515014433.16168-13-pkshih@realtek.com
The previous commit aims to fix issue caused by malformed AMPDU frames.
But the drop logic fails to deal with the first AMPDU packet paired with
certain range of sequence number, and leads to unexpected packet drop.
It is more likely to encounter this failure when there are busy traffic
during rekey process and could lead to disconnection from the AP.
Fix this by adding a initial state judgement and only reset status
during pairwise rekey.
Fixes: bda294ed0e ("wifi: rtw89: Drop malformed AMPDU frames with abnormal PN")
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260515014433.16168-10-pkshih@realtek.com
In WoWLAN mode, the firmware periodically sends Null packets to the AP
to keep the connection alive and prevent the AP from disconnecting the
client due to inactivity. However, it was observed that certain APs,
such as TP-Link Archer BE800, do not recognize Null packets as
valid activity and still drop the connection. Replacing Null packets
with ARP reply packets effectively resolves this compatibility issue
and maintains the connection.
Specifically, while the firmware typically handles standard ARP
offloads by dynamically modifying target IP/MAC fields, these
keep-alive ARP reply packets are pre-filled by the driver with the
DUT's own MAC and IP addresses for both sender and target fields.
In this case, the firmware transmits the packets as-is without
further modification. This approach ensures compatibility with APs
that require valid Layer 3 traffic for activity monitoring while
simplifying the firmware's processing logic during WoWLAN mode.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260515014433.16168-9-pkshih@realtek.com
Originally, driver always transmits LTR (Latency Tolerance Reporting) to
pcie host, but it may cause pcie link down on some platforms because
LTR is not supported. As a result, driver will check the control
register of LTR setting to decide whether to enable LTR feature.
This applies to Wi-Fi 6 chips only. For Wi-Fi 7 chips, although the
driver still issues LTR, the hardware has its own internal logic
to determine whether to actually transmit it to pcie host.
Signed-off-by: Dian-Syuan Yang <dian_syuan0116@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260515014433.16168-5-pkshih@realtek.com
When SER (system error recovery) happens, there may be some handshake
between FW and SW, e.g. SER Level 1. These handshake are based on H2C
commands and C2H events. Dump the status of them to enhance SER debug.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260515014433.16168-4-pkshih@realtek.com
Wi-Fi 7 FW fixes support of triggering SER L0/L1 simulation via halt H2C
command on v0.35.108.0. After that, the halt H2C command trigger for
Wi-Fi 6 and Wi-Fi 7 can be the same. Update FW feature table and share the
halt H2C command trigger function between Wi-Fi 6 and Wi-Fi 7.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260515014433.16168-3-pkshih@realtek.com
Wi-Fi 7 has dedicated HW register to count SER L0 simulation, i.e.
manually triggered by users. Show count of it in dbgfs ser_counters.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260515014433.16168-2-pkshih@realtek.com
When building the kernel using llvm-19.1.7-rust-1.85.0-x86_64, the
following symbols are generated:
$ nm vmlinux | grep ' _R'.*OPP | rustfilt
ffffffff81801560 T <kernel::opp::OPP>::freq
ffffffff81801540 T <kernel::opp::OPP as kernel::sync::aref::AlwaysRefCounted>::dec_ref
ffffffff81801520 T <kernel::opp::OPP as kernel::sync::aref::AlwaysRefCounted>::inc_ref
However, these Rust symbols are trivial wrappers around the
`dev_pm_opp_get`, `dev_pm_opp_put` and `dev_pm_opp_get_freq_indexed`
functions. It doesn't make sense to go through a trivial wrapper for
these functions.
After applying this patch, the above command will produce no output.
Link: https://github.com/Rust-for-Linux/linux/issues/1145
Suggested-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Nicolás Antinori <nico.antinori.7@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Merge tag 'v7.1-rc5' into driver-core-next
We need the driver-core fixes in here as well to build on top of.
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Using kstrtouint_from_user() instead of copy_from_user() + kstrtouint() makes
the code simpler and less error-prone.
No functional changes.
[ bp: Align function args on opening brace, while at it. ]
Suggested-by: Yury Norov <ynorov@nvidia.com>
Signed-off-by: Fushuai Wang <wangfushuai@baidu.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Yury Norov <ynorov@nvidia.com>
Link: https://patch.msgid.link/20260117145615.53455-3-fushuai.wang@linux.dev
The register address was already validated for read operations in
regmap_sunxi_rsb_reg_read before being truncated to a u8. Write operations
have the same set of possible addresses, and the address is being truncated
from u32 to u8 here as well, so the same check is needed.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fixes: d787dcdb9c ("bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus")
Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20260301144939.1832806-1-andrej.skvortzov@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
Neil Armstrong <neil.armstrong@linaro.org> says:
Add support for the SG Micro SGM3804 Single Inductor Dual Output
Buck/Boost Converter used to power LCD panels a provide positive
and negative power rails with configurable voltage and active
discharge function for each output.
The SGM3804 is powered by the enable GPIO pins inputs and only
supports I2C write messages.
In order to add flexibility and simplify the driver, the
regmap cache is enabled and populated with default values
since we can't write registers when the 2 GPIOs are down.
This regulator is used to provide vsn and vsn power to the
Ayaneo Pocket S2 dual-DSI LCD panel.
Link: https://patch.msgid.link/20260522-topic-sm8650-ayaneo-pocket-s2-sgm3804-v5-0-bd6b1c300ecc@linaro.org
Add support for the SG Micro SGM3804 Single Inductor Dual Output
Buck/Boost Converter used to power LCD panels a provide positive
and negative power rails with configurable voltage and active
discharge function for each output.
The SGM3804 is powered by the enable GPIO pins inputs and only
supports I2C write messages.
In order to add flexibility and simplify the driver, the
regmap cache is enabled and populated with default values
since we can't write registers when the 2 GPIOs are down.
Signed-off-by: KancyJoe <kancy2333@outlook.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260522-topic-sm8650-ayaneo-pocket-s2-sgm3804-v5-2-bd6b1c300ecc@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Document the SG Micro SGM3804 Single Inductor Dual Output Buck/Boost
Converter used to power LCD panels a provide positive and negative
power rails with configurable voltage and active discharge function
for each output.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260522-topic-sm8650-ayaneo-pocket-s2-sgm3804-v5-1-bd6b1c300ecc@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
On architectures with 32-bit longs, call the compat syscall
__NR_ftruncate64. As off_t is 64-bit it must be split into 2 registers.
Unlike llseek() which passes the high and low parts in explicitly named
arguments, the order here is endian independent.
Some architectures (arm, mips, ppc) require this pair of registers to
be aligned to an even register, so add custom _sys_ftruncate64()
wrappers for those.
A test case for ftruncate is added which validates negative length or
invalid fd return the appropriate error, and checks the length is
correct on success.
Co-developed-by: Jordan Richards <jordanrichards@google.com>
Signed-off-by: Jordan Richards <jordanrichards@google.com>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Reviewed-by: Daniel Palmer <daniel@thingy.jp>
Link: https://patch.msgid.link/20260521-nolibc-ftruncate-v1-3-5384a83b2402@weissschuh.net
On 32-bit architectures some system calls require a single 64-bit
argument to be passed as two 32-bit halves.
Add a helper to easily split such arguments. This works on little and
bit endian.
Signed-off-by: Daniel Palmer <daniel@thingy.jp>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260521-nolibc-ftruncate-v1-2-5384a83b2402@weissschuh.net
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
We are using the getrandom syscall to get a random seed for the
stack protector canary but we are calling it with no flags which means
it'll block until there is some real randomness to return.
This means that if the crng is not ready yet program startup will
block and if you are unlucky that could be for a long time and
look like the program has crashed.
Even if the call to getrandom does not yield any random data,
we will still initialize the canary.
Fixes: 7188d4637e ("tools/nolibc: add support for stack protector")
Signed-off-by: Daniel Palmer <daniel@thingy.jp>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260522090726.726985-1-daniel@thingy.jp
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
The avx2 lookup routines get the next map index to process passes as a
function argument, but this isn't obvious because it's hidden in the
lookup macro.
Additionally, a recent LLM review pointed out following "bug":
-------------------------------------------------------------
> b = nft_pipapo_avx2_refill(i_ul, &map[i_ul], fill, f->mt, last);
> if (last)
> - return b;
> + ret = b;
>
> if (unlikely(ret == -1))
> ret = b / XSAVE_YMM_SIZE;
Does this change introduce a logic error when last=true and no match is
found? [..]
Should this be changed to an else-if structure instead?
-------------------------------------------------------------
LLM sees a control-flow change, but there is none:
All call sites invoke nft_pipapo_avx2_refill() only when at least one
bit in the map is set, i.e. nft_pipapo_avx2_refill() never returns -1.
Add a runtime debug check that fires if we'd return -1 as additional
documentation and also make the suggested change, code might be easier
to understand this way.
In commit 17a20e09f0 ("netfilter: nft_set: remove one argument from
lookup and update functions") I incorrectly moved the "ret" scope into
the loop.
This has no effect on the correctness, but it can (depending on map sizes)
cause a redundant repeat of an earlier processing step.
Restore the intended 'pass map index' instead of always-0. Note that I
did not see any change in performance numbers, but Stefano correctly
points out that the existing perf test likely lack a sparse intermediate
bitmap (between fields) with a lot of leading zeroes.
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
parse_dcc() treats data_end as an inclusive end pointer, but its only
caller passes data_limit = ib_ptr + datalen, which points one past the
last valid byte.
The newline search loop iterates while tmp <= data_end, so when no
newline is present, *tmp is read at tmp == data_end, one byte beyond
the region filled by skb_header_pointer().
irc_buffer is kmalloc'd as MAX_SEARCH_SIZE + 1 bytes and datalen is
capped at MAX_SEARCH_SIZE, so the stray read does not fault. The byte
is uninitialized or stale; if it contains an ASCII digit, simple_strtoul
will consume it and produce a wrong DCC IP or port in the conntrack
expectation. The extra allocation byte is also a fragile guard: if the
cap or allocation size changes, this becomes a real out-of-bounds read.
Change the loop and its post-loop check to use strict less-than,
consistent with the caller's exclusive-end convention. Update the
function comment accordingly.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Muhammad Bilal <meatuni001@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
When a userspace conntrack helper with multiple expectation classes is
updated via nfnetlink, every class ends up with the first class's
max_expected and timeout values.
nfnl_cthelper_update_policy_all() validates each new policy into the
corresponding slot of the temporary new_policy array, but the second
loop that commits the values into the live helper dereferences
new_policy as a pointer instead of indexing it, so every iteration
reads new_policy[0] regardless of i. An update that changes per-class
values is silently collapsed onto class 0's values with no error
returned to userspace.
Index the temporary array by i in the commit loop so each class gets
its own validated values.
Fixes: 2c42225755 ("netfilter: nfnl_cthelper: fix runtime expectation policy updates")
Cc: stable@vger.kernel.org
Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
net/netfilter/nft_set_rbtree.c:399 __nft_rbtree_insert()
warn: 'removed_end' is not an error pointer
Since commit : 087388278e ("netfilter: nf_tables: nft_set_rbtree: fix
spurious insertion failure") __nft_rbtree_insert() can no longer fail
and this condition is always false. Remove it.
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/netfilter-devel/adjSaolTji0mPgqx@stanley.mountain/
Signed-off-by: Florian Westphal <fw@strlen.de>
Commit 02a3231b6d ("netfilter: nf_conntrack_expect: store netns and zone in expectation")
introduced exp->net so RCU-only expectation paths no longer need to
dereference exp->master for netns lookups.
Commit 3db5647984 ("netfilter: nf_conntrack_expect: skip expectations in other netns via proc")
updated the proc path accordingly, but ctnetlink_exp_dump_table() still
compares against nf_ct_net(exp->master).
Use nf_ct_exp_net(exp) here as well so the netlink dump path matches
the rest of the March 2026 expectation netns/RCU cleanup.
Fixes: 02a3231b6d ("netfilter: nf_conntrack_expect: store netns and zone in expectation")
Cc: stable@vger.kernel.org
Signed-off-by: Pratham Gupta <pratham36gupta@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
As-is, different netns will use same slots if the key is the same.
OVS uses this infrastructure to limit conntrack counts per zones.
Those can easily overlap. Make them hash to different slots internally.
Signed-off-by: Florian Westphal <fw@strlen.de>
Netfilter has its own netlink multiplexer, initially only a few
subsystem were using it, most notably conntrack, queue and log,
later in time nf_tables. These days it is the control plane of
preference.
Just remove modular support for this, allow it built-in only.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Reviewed-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
Similar to a few other subsystems: add a new config toggle to
enable netfilter gcov profiling in netfilter, including ebtables,
arptables and so on.
ipset and ipvs gain their own, dedicated toggles.
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Florian Westphal <fw@strlen.de>
This feature is required to use 32bit arp/ip/ip6/ebtables binaries on
64bit kernels. I don't think there are many users left.
Support has been a compile-time option since 2021 and defaults to off
since 2023.
The XTABLES_COMPAT config option is already off in many distributions
including Debian and Fedora.
Give a few more months before complete removal but disable support in
user namespaces already.
Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Florian Westphal <fw@strlen.de>
Add explicit default labels to switch statements in lm75_is_visible().
This makes the control flow explicit and improves readability, but also
keeps consistency to other usage of the switch statement in the driver.
Signed-off-by: Flaviu Nistor <flaviu.nistor@gmail.com>
Link: https://lore.kernel.org/r/20260417055700.5739-1-flaviu.nistor@gmail.com
[groeck: Reformatted description for line length]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Similar to other HWMON sensors add a section in the
documentation describing the sysfs attributes, their
permissions and a short description.
Signed-off-by: Flaviu Nistor <flaviu.nistor@gmail.com>
Link: https://lore.kernel.org/r/20260417054511.5432-1-flaviu.nistor@gmail.com
[groeck: Removed trailing ":" from attribute names; fixed minor typo]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for MPS mp2985 controller. This driver exposes
telemetry and limit value readings and writtings.
Signed-off-by: Wensheng Wang <wenswang@yeah.net>
Link: https://lore.kernel.org/r/20260414092921.1067735-2-wenswang@yeah.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for MPS mp2985 controller.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Wensheng Wang <wenswang@yeah.net>
Link: https://lore.kernel.org/r/20260414092921.1067735-1-wenswang@yeah.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Replace hardcoded IB_WIDTH_4X/IB_SPEED_EDR with ib_get_eth_speed()
to report the actual link speed in mana_ib_query_port().
Fixes: 4bda1d5332 ("RDMA/mana_ib: Implement port parameters")
Link: https://patch.msgid.link/r/20260512094056.264827-1-kotaranov@linux.microsoft.com
Signed-off-by: Shiraz Saleem <shirazsaleem@microsoft.com>
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Store the client path statistics in the RTRS client path allocation
instead of allocating them separately.
This ties the stats lifetime directly to the path and removes a separate
allocation failure path. Keep freeing the per-CPU stats data separately,
but do not free the embedded stats object from error paths or the stats
kobject release handler.
Link: https://patch.msgid.link/r/20260511041812.378030-1-rosenp@gmail.com
Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
A bunch of Samsung SoCs are missing the EL2 virtual timer interrupt
despite using ARMv8.1+ CPUs. Add the missing interrupt, except for
those broken designs where the interrupt is documented as not being
wired.
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260523140242.586031-9-maz@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
- Fix ITS EventID sanitisation when restoring an interrupt translation
table.
- Fix PPI memory leak when failing to initialise a vcpu.
- Correctly return an error when the validation of a hypervisor trace
descriptor fails, and limit this validation to protected mode only.
RISC-V:
- Fix invalid HVA warning in steal-time recording
- Return SBI_ERR_FAILURE to guest upon OOM in pmu_event_info()
and pmu_snapshot_set_shmem()
- Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
- Fix sign extension of value for MMIO loads
s390:
- Fix bugs in vSIE (nested virtualization) and UCONTROL, caused by the page
table rewrite.
x86:
- Apply erratum #1235 workaround (disable AVIC IPI virtualization) on Hygon
Family 18h, just like on AMD Family 17h.
- When KVM_CAP_X86_APIC_BUS_CYCLES_NS is queried on a specific VM, return
the VM's configured APIC bus frequency instead of the default. This
is less confusing (read: not wrong) and makes it easier to fill in CPUID
information that communicates the APIC bus frequency to the guest.
Selftests:
- Do not include glibc-internal <bits/endian.h>; it worked by chance and
broke building KVM selftests with musl.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"arm64:
- Fix ITS EventID sanitisation when restoring an interrupt
translation table.
- Fix PPI memory leak when failing to initialise a vcpu.
- Correctly return an error when the validation of a hypervisor trace
descriptor fails, and limit this validation to protected mode only.
RISC-V:
- Fix invalid HVA warning in steal-time recording
- Return SBI_ERR_FAILURE to guest upon OOM in pmu_event_info() and
pmu_snapshot_set_shmem()
- Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
- Fix sign extension of value for MMIO loads
s390:
- Fix bugs in vSIE (nested virtualization) and UCONTROL, caused by
the page table rewrite.
x86:
- Apply erratum #1235 workaround (disable AVIC IPI virtualization) on
Hygon Family 18h, just like on AMD Family 17h.
- When KVM_CAP_X86_APIC_BUS_CYCLES_NS is queried on a specific VM,
return the VM's configured APIC bus frequency instead of the
default. This is less confusing (read: not wrong) and makes it
easier to fill in CPUID information that communicates the APIC bus
frequency to the guest.
Selftests:
- Do not include glibc-internal <bits/endian.h>; it worked by chance
and broke building KVM selftests with musl"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Disable AVIC IPI virtualization on Hygon Family 18h (erratum #1235)
KVM: selftests: Verify that KVM returns the configured APIC cycle length
KVM: x86: Return the VM's configured APIC bus frequency when queried
KVM: selftests: elf: Include <endian.h> instead of <bits/endian.h>
KVM: s390: Properly reset zero bit in PGSTE
KVM: s390: vsie: Fix redundant rmap entries
KVM: s390: vsie: Fix unshadowing logic
KVM: s390: Fix leaking kvm_s390_mmu_cache in case of errors
KVM: s390: vsie: Fix memory leak when unshadowing
KVM: arm64: Fix nVHE/pKVM hyp tracing error on invalid desc
KVM: arm64: vgic: Free private_irqs when init fails after allocation
KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits
RISC-V: KVM: Fix sign extension for MMIO loads
RISC-V: KVM: Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
riscv: kvm: return SBI_ERR_FAILURE for pmu_event_info() when OOM
riscv: kvm: return SBI_ERR_FAILURE for pmu_snapshot_set_shmem() when OOM
RISC-V: KVM: Fix invalid HVA warning in steal-time recording
On platforms with multiple xSPI instances, the driver fails to probe
additional instances due to duplicate sysfs entries:
[ 86.878242] sysfs: cannot create duplicate filename '/bus/platform/devices/rpc-if-spi'
This occurs because platform_device_alloc() uses pdev->id for the device
ID, which may be PLATFORM_DEVID_NONE (-1) for multiple instances, causing
all instances to attempt registration with the same name.
Fix this by using PLATFORM_DEVID_AUTO instead, which automatically assigns
unique IDs to each device instance, allowing multiple xSPI controllers to
coexist without naming conflicts.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://patch.msgid.link/20260515115202.1515577-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Document xSPI controller found on the Renesas RZ/T2H and RZ/N2H SoCs.
The xSPI IP on these SoCs is identical to that found on the RZ/G3E SoC.
The RZ/G3E HW manual (Rev.1.15) references bridge channel 1 and its
bits, however the hardware actually supports only a single bridge
channel (channel 0), matching the RZ/T2H design. The references to
channel 1 and its configuration bits will be corrected in a future
revision of the HW manual.
Update clock/reset constraints to handle the SoC differences.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260515115202.1515577-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Recent W=1 builds print kerneldoc warnings, even though a correct
kerneldoc is there:
Warning: drivers/memory/omap-gpmc.c:441 Excess function parameter 'cs' description in 'get_gpmc_timing_reg'
Drop additional inline comments for arguments to fix that. They are
anyway not that useful.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260520111630.89365-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
io_register_iowq_max_workers() walks ctx->tctx_list under ctx->tctx_lock
and dereferences each node's task->io_uring without a NULL check:
list_for_each_entry(node, &ctx->tctx_list, ctx_node) {
tctx = node->task->io_uring;
if (WARN_ON_ONCE(!tctx->io_wq))
continue;
...
}
__io_uring_add_tctx_node() installs the node into ctx->tctx_list (via
io_tctx_install_node(), which does the list_add() under tctx_lock) and
only assigns current->io_uring = tctx afterwards. A task doing its first
io_uring operation on a shared ring therefore has a window in which its
node is already visible on ctx->tctx_list while node->task->io_uring is
still NULL. A concurrent IORING_REGISTER_IOWQ_MAX_WORKERS on the same
ring reads that NULL and dereferences tctx->io_wq:
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
RIP: io_register_iowq_max_workers io_uring/register.c:423
Publish current->io_uring = tctx before installing the node, so any node
visible on ctx->tctx_list always has a valid task->io_uring.
Fixes: 7880174e1e ("io_uring/tctx: clean up __io_uring_add_tctx_node() error handling")
Signed-off-by: Lim HyeonJun <shja0831@gmail.com>
Link: https://patch.msgid.link/20260524110853.115634-1-shja0831@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- On SEV guests, handle set_memory_{encrypted,decrypted}()
failures more conservatively by assuming that all affected
pages are unencrypted (Carlos López)
- Disable broadcast TLB flush when PCID is disabled
(Tom Lendacky)
- Fix VMX vs. hrtimer_rearm_deferred() regression
(Peter Zijlstra)
- Move IRQ/NMI dispatch code from KVM into x86 core, to
prepare for a KVM x2apic fix (Peter Zijlstra)
- Fix incorrect munmap() size on map_vdso() failure
(Guilherme Giacomo Simoes)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- On SEV guests, handle set_memory_{encrypted,decrypted}() failures
more conservatively by assuming that all affected pages are
unencrypted (Carlos López)
- Disable broadcast TLB flush when PCID is disabled (Tom Lendacky)
- Fix VMX vs. hrtimer_rearm_deferred() regression (Peter Zijlstra)
- Move IRQ/NMI dispatch code from KVM into x86 core, to prepare for a
KVM x2apic fix (Peter Zijlstra)
- Fix incorrect munmap() size on map_vdso() failure (Guilherme Giacomo
Simoes)
* tag 'x86-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
virt: sev-guest: Explicitly leak pages in unknown state
x86/mm: Disable broadcast TLB flush when PCID is disabled
x86/kvm/vmx: Fix VMX vs hrtimer_rearm_deferred()
x86/kvm/vmx: Move IRQ/NMI dispatch from KVM into x86 core
x86/vdso: Fix incorrect size in munmap() on map_vdso() failure
