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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Lots of fixes, double the count even for the 'new normal'. Largely due
to my time off followed by a networking conference which distracted
most maintainers (less so the AI generators).
Including fixes from Bluetooth and WiFi.
Current release - regressions:
- wifi: mt76: fix MAC address for non OF pcie cards
Current release - new code bugs:
- mptcp: fix BUILD_BUG_ON on legacy ARM config
- wifi: cfg80211: guard optional PMSR nominal time
Previous releases - regressions:
- qrtr: ns: raise node count limit to 512, we arbitrarily picked
256 as a limit, turns out it was too low for real world deployments
- vhost-net: fix TX stall when vhost owns virtio-net header
- eth: amd-xgbe: fix MAC_AUTO_SW handling in CL37 AN
- wifi: ath12k: fix low MLO RX throughput on WCN7850
Previous releases - always broken:
- number of random AI fixes for SCTP, RDS and TIPC protocols
- more AI-looking fixes for WiFi drivers
- number of fixes for missing pointer reloading after skb pull
- reject BPF redirect use from qdisc qevent block
- tcp: initialize standalone TCP-AO response padding
- vsock/virtio: collapse receive queue under memory pressure to avoid
client OOMing the host with tiny messages
- ipv4: icmp: fill flow parameters in icmp_route_lookup decoy lookup,
make sure the ICMP response routing follows the routing policy
- gro: fix double aggregation of flush-marked skbs
- ovpn: fix various refcount bugs
- tls: device: push pending open record on splice EOF
- eth: mlx5:
- use sender devcom for MPV master-up
- fix MCIA register buffer overflow on 32 dword reads"
* tag 'net-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (234 commits)
drop_monitor: perform u64_stats updates under IRQ-disabled section
drop_monitor: fix size calculations for 64-bit attributes
net: drop_monitor: fix info leak in NET_DM_ATTR_PAYLOAD
mptcp: fix BUILD_BUG_ON on legacy ARM config
selftests: mptcp: userspace_pm: fix undefined variable port
mptcp: fix stale skb->sk reference on subflow close
mptcp: pm: userspace: fix use-after-free in get_local_id
mptcp: decrement subflows counter on failed passive join
mac802154: hold an interface reference across the scan worker
sctp: don't free the ASCONF's own transport in DEL-IP processing
phonet: check register_netdevice_notifier() error in phonet_device_init()
phonet: pep: fix use-after-free in pep_get_sb()
bnge/bng_re: fix ring ID widths
tipc: fix integer overflow in tipc_recvmsg() and tipc_recvstream()
net: airoha: fix ETS channel derivation in airoha_tc_setup_qdisc_ets()
mctp: check register_netdevice_notifier() error in mctp_device_init()
ptp: netc: explicitly clear TMR_OFF during initialization
rds: tcp: unregister sysctl before tearing down listen socket
ipv6: Change allocation flags to match rcu_read_lock section requirements
net: slip: serialize receive against buffer reallocation
...
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In make_connection(), the variable "port" is used but never defined.
This leads to an empty argument being passed to wait_local_port_listen(),
causing "printf: : invalid number" errors:
# INFO: Init
# 01 Created network namespaces ns1, ns2 [ OK ]
# INFO: Make connections
# ./../lib.sh: line 651: printf: : invalid number
# 02 Established IPv4 MPTCP Connection ns2 => ns1 [ OK ]
# INFO: Connection info: 10.0.1.2:59516 -> 10.0.1.1:50002
# ./../lib.sh: line 651: printf: : invalid number
# 03 Established IPv6 MPTCP Connection ns2 => ns1 [ OK ]
Fix it by using the correctly defined variable "app_port", which holds the
appropriate port number for the connection.
Fixes: 39348f5f2f13 ("selftests: mptcp: wait for port instead of sleep")
Cc: stable@vger.kernel.org
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260722-net-mptcp-misc-fixes-7-2-rc5-v1-4-6fb595bc86ef@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When a sleeping task's affinity is changed, task_cpu(p) can be outside
of p->cpus_ptr until after select_task_rq() selects a new runqueue for
the task during wakeup.
Thus, the task's NUMA node determined by numa_select_cpu() can be
completely outside of the task's cpumask, leading to
scx_pick_{idle,any}_cpu_node() failing to find an eligible CPU and
returning -EBUSY. This leads to the numa.bpf.c scheduler abnormally
exiting with the following message in dmesg:
sched_ext: numa: invalid CPU -16
scx_bpf_cpu_node+0x120/0x190
bpf_prog_0a34b8e0f515771f_numa_select_cpu+0x108/0x14e
bpf__sched_ext_ops_select_cpu+0x4f/0xb4
select_task_rq_scx+0xb0/0x210
select_task_rq+0xa0/0xd0
__try_to_wake_up+0x196/0x650
complete_all+0x76/0x100
migration_cpu_stop+0x22b/0x300
cpu_stopper_thread+0xc1/0x180
smpboot_thread_fn+0x16b/0x230
kthread+0x2d7/0x350
ret_from_fork+0x1c2/0x350
ret_from_fork_asm+0x1a/0x30
Make numa_select_cpu() robust against this case by returning @prev_cpu
if no CPU could be found in the selected NUMA node _and_ we have reason
to believe that the task's affinity was changed while it was sleeping.
Fixes: 5ae5161820e5 ("selftests/sched_ext: Add NUMA-aware scheduler test")
Signed-off-by: Kuba Piecuch <jpiecuch@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Replace copy paste from csum.py with a real test purpose.
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Link: https://patch.msgid.link/20260720215149.631145-2-pvorel@suse.cz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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C source was moved in 1d0dc857b5d87.
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Link: https://patch.msgid.link/20260720215149.631145-1-pvorel@suse.cz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Antonio Quartulli says:
====================
Included fixes:
* ensure keepalive timestamps are computed using monotonic source
* avoid UAF in unlock_ovpn() when iterating over release_list
* fix memleak in selftest tool
* ensure reference to peer is acquired before scheduling worker
(which may drop the not-yet-taken ref)
* fix refcount leak in case of concurrent TX and RX TCP error
* fix potential refcount unbalance in case of sock release in
P2P mode
* tag 'ovpn-net-20260720' of https://github.com/OpenVPN/ovpn-net-next:
ovpn: use monotonic clock for peer keepalive timeouts
ovpn: fix use after free in unlock_ovpn()
selftests/net: ovpn: fix getaddrinfo memory leak in ovpn_parse_remote()
ovpn: hold peer before scheduling keepalive work
ovpn: fix peer refcount leak in TCP error paths
ovpn: avoid putting unrelated P2P peer on socket release
====================
Link: https://patch.msgid.link/20260720144131.3657121-1-antonio@openvpn.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add packetdrill coverage for the RFC 9293 reset checks on request
sockets in SYN-RECEIVED. Verify that an exact RST removes the request,
a non-exact in-window RST sends a challenge ACK without removing it,
and an out-of-window RST is silently discarded.
Also cover an RST|ACK with an unacceptable ACK number to ensure RST
sequence validation runs before ACK-field validation.
Signed-off-by: Yuxiang Yang <yangyx22@mails.tsinghua.edu.cn>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260717081443.809393-3-yangyx22@mails.tsinghua.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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mmap() is documented to return MAP_FAILED on error, but tcp_mmap.c
compares the return value against (void *)-1 and (unsigned char *)-1.
Replace these with the standard MAP_FAILED macro for better readability
and type safety.
Signed-off-by: longlong yan <yanlonglong@kylinos.cn>
Reviewed-by: Joe Damato <joe@dama.to>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260722015129.916-1-yanlonglong@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In case iproute2 is older than version 5.14.0, released ~Sept 1, 2021,
the End.DT46 support is not available and the host_vpn_tests test contained
in the srv6_end_dt46_l3vpn_test.sh file is failing in some kernel backports.
This is the result of those tests:
################################################################################
TEST SECTION: SRv6 VPN connectivity test among hosts in the same tenant
################################################################################
TEST: IPv6 Hosts connectivity: hs-t100-1 -> hs-t100-2 (tenant 100) [ FAIL ]
TEST: IPv4 Hosts connectivity: hs-t100-1 -> hs-t100-2 (tenant 100) [ FAIL ]
TEST: IPv6 Hosts connectivity: hs-t100-2 -> hs-t100-1 (tenant 100) [ FAIL ]
TEST: IPv4 Hosts connectivity: hs-t100-2 -> hs-t100-1 (tenant 100) [ FAIL ]
TEST: IPv6 Hosts connectivity: hs-t200-3 -> hs-t200-4 (tenant 200) [ FAIL ]
TEST: IPv4 Hosts connectivity: hs-t200-3 -> hs-t200-4 (tenant 200) [ FAIL ]
TEST: IPv6 Hosts connectivity: hs-t200-4 -> hs-t200-3 (tenant 200) [ FAIL ]
TEST: IPv4 Hosts connectivity: hs-t200-4 -> hs-t200-3 (tenant 200) [ FAIL ]
To amend this, check the current running iproute2 supports the required
feature and, if not, just skip the entire test to avoid a failure.
Signed-off-by: Alessio Faina <alessio.faina@canonical.com>
Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Link: https://patch.msgid.link/20260715122859.36177-1-alessio.faina@canonical.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Per-object monitors can allocate memory dynamically and such memory is
required for the lifetime of the object, then it should be freed with
the appropriate call.
Force the generation scripts to add a cleanup function the user will
need to wire to the appropriate event (e.g. sched_process_exit for
tasks). This can be safely removed if the object will never cease to
exist before disabling the monitor (e.g. if following only static
variables).
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20260601153840.124372-14-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
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The rvgen source comments still refer to da_monitor_synthesis.rst, which
no longer exists. The documentation is now available in
monitor_synthesis.rst. Update both references to point to the current
file.
Signed-off-by: Yu Chuanyu <lucayu.alight@gmail.com>
Acked-by: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/r/20260618-rvgen-doc-path-v1-1-9bcf0148417a@gmail.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
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cs_etm__get_trace() returns an int, but it used to return etmq->buf_len
on success. That value comes from auxtrace_buffer::size, which is a
size_t. For a large AUX trace block, returning the byte count through an
int can overflow and make a valid buffer look like a negative error.
The callers do not need the actual byte count from cs_etm__get_trace().
The buffer length is already stored in the etmq->buf_len. The callers
only need to distinguish three states:
< 0: error
= 0: no more AUX buffers
> 0: data is available
Make cs_etm__get_trace() return 0 for all non-error cases and use
etmq->buf_len to indicate whether a new buffer was found. Then make
cs_etm__get_data_block() return 1 whenever data is available, instead of
returning the buffer length.
Also refactor cs_etm__get_data_block() to make its return value
semantics clearer.
Reported-by: Suyash Mahar <smahar@meta.com>
Fixes: 8224531cf5a1 ("perf cs-etm: Modularize auxtrace_buffer fetch function")
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Fix spelling typos found by an automated checker in the KVM
selftests for x86 and RISC-V.
Signed-off-by: Shivank Sharma <shivanksharma2376543@gmail.com>
Link: https://patch.msgid.link/20260717162838.1562808-1-shivanksharma2376543@gmail.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
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Extend the packet socket selftest, adding a recvmsg path, to test
PACKET_AUXDATA. Check basic attributes of tpacket_auxdata.
Signed-off-by: Joe Damato <joe@dama.to>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260720122714.759175-4-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Extend psock_snd to test drops by setting a tiny receive buffer and
sending a large burst of packets.
Signed-off-by: Joe Damato <joe@dama.to>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260720122714.759175-3-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Update the existing packet socket test to include a test for the sockopt
PACKET_STATISTICS.
Signed-off-by: Joe Damato <joe@dama.to>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After executing cpufreq sptest, the system governor
will be overwritten with the governor switched
during the test. Restore this setting to maintain
consistency before and after the test.
Signed-off-by: Yiwei Lin <s921975628@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/20260707163647.6646-1-s921975628@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The cpufreq selftests are always executed through main.sh, which verifies
that the test is run as root before dispatching any test case.
Therefore, invoking sudo inside quick_shuffle() is redundant and may cause
failures in environments where sudo is unavailable.
Signed-off-by: Jinseok Kim <always.starving0@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/20260706143857.3306-2-always.starving0@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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switch_show_governor() assigns the current governor and frequency
to local variables before switching governors.
However, these variables are never referenced afterwards. The function
does not restore the previous governor or use the saved frequency, as
backup_governor() and restore_governor() already handle state preservation
elsewhere.
Signed-off-by: Jinseok Kim <always.starving0@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/20260706143857.3306-1-always.starving0@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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While the GCC and Clang compilers already define __ASSEMBLER__
automatically when compiling assembly code, __ASSEMBLY__ is a
macro that only gets defined by the Makefiles in the kernel.
This can be very confusing when switching between userspace
and kernelspace coding, or when dealing with uapi headers that
rather should use __ASSEMBLER__ instead. So let's standardize now
on the __ASSEMBLER__ macro that is provided by the compilers.
This is a completely mechanical patch (done with a simple "sed -i"
statement).
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Yury Norov <ynorov@nvidia.com>
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tunnel tests
The IPIP and IP6IP6 tunnel tests call check_counters() to verify
flowtable offloading occurred, but the flow-add rule only matches
meta oif "veth1". When traffic is routed through a tunnel device,
oif is the tunnel interface (tun0, tun6, etc.), not veth1, so
the flow-add rule never fires, no flowtable entry is created,
and counters stay at zero — producing a silent false pass.
Fix by adding tunnel-specific flow-add rules for each tunnel
interface. These match TCP dport 12345 traffic before the bare
accept rule, set ct mark, add the flow to the flowtable, and
increment routed_orig. The existing routed_repl rule on veth0
already handles the reply direction since decapsulated reply
packets exit through the physical interface.
Also add check_counters() for the IP6IP6 non-VLAN and
IP6IP6-over-VLAN tests which previously used a bare PASS message.
Fixes: fe8313316eaf ("selftests: netfilter: nft_flowtable.sh: Add IPIP flowtable selftest")
Fixes: 5e5180352193 ("selftests: netfilter: nft_flowtable.sh: Add IP6IP6 flowtable selftest")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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ops.cpu_acquire/release() are deprecated in favor of tracking CPU
preemption from a sched_switch tracepoint, see
commit a3f5d4822253 ("sched_ext: Allow scx_bpf_reenqueue_local() to
be called from anywhere"). Loading scx_pair currently emits a
deprecation warning.
Replace the pair_cpu_acquire/release() callbacks with a
tp_btf/sched_switch program that edge-detects the same transitions the
core used to deliver: a release when a running SCX task loses its CPU
to a higher-priority class, and an acquire when the CPU switches back
to an SCX task or idle while marked preempted.
Tasks are classified by effective priority (p->prio) rather than by
policy: rt_mutex_setprio() boosts a PI beneficiary into the rt/dl
classes while leaving its policy untouched, so a policy test would
both miss the release when a boosted task takes the CPU and fire a
spurious acquire when a boosted task replaces a real rt task.
A switch from idle straight to a higher-priority task is deliberately
not treated as a release. The CPU was not running an SCX task, so
there is nothing to drain, and kicking SCX_KICK_PREEMPT |
SCX_KICK_WAIT on every rt wakeup would make the pair CPU wait out rt
bursts it was never coupled to. The old callbacks behaved the same
way, firing ops.cpu_release() only from switch_class() when an SCX
task was put for a higher class.
The tracepoint runs on every context switch in the system, so the
common no-transition case is filtered before taking the pair-shared
lock. This is safe because a CPU's own preempted_mask bit is only ever
written by this tracepoint running on that CPU.
sched_setscheduler() on a running task changes class in place without
a context switch, so such transitions are only observed at the task's
next switch. The old callbacks had the same blind spot in
switch_class(), and try_dispatch() already bounds the resulting wait.
Verified in virtme-ng with the script below. The scheduler must load
without the deprecation warning, stay enabled through the rt churn and
the idle soak (the watchdog would otherwise abort it with "runnable
task stall"), keep its preemption counter advancing, and unregister
cleanly at the end. A PI rt-mutex churn that repeatedly boosts
SCX tasks into the rt class was exercised separately:
#!/bin/bash
# vng --verbose --cpus 8 -m 4G --user root -- ./verify.sh
# FIFO harness: survives even if all SCHED_NORMAL tasks stall
[ "${RT:-0}" = 1 ] || exec chrt -f 5 env RT=1 "$0"
chrt -o 0 ./tools/sched_ext/build/bin/scx_pair &
PAIR=$!
sleep 3
for round in $(seq 10); do
pids=""
for i in 0 1 2 3; do # SCHED_FIFO churn
chrt -f 10 bash -c \
'e=$((SECONDS+1)); while [ $SECONDS -lt $e ]; do :; done' &
pids="$pids $!"
done
for i in 0 1; do # SCHED_NORMAL load under scx
chrt -o 0 bash -c \
'n=0; while [ $n -lt 200000 ]; do n=$((n+1)); done' &
pids="$pids $!"
done
wait $pids # explicit pids, not the scx_pair job
done
sleep 300 # idle soak
kill -INT $PAIR # expect clean unregister in dmesg
Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Add a test with PVID VLAN that matches the flags of the VLAN following it
and check if the range is properly dumped. PVID VLAN should be on its own
and all VLANs should be present in the dump.
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260721140922.682265-3-razor@blackwall.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Teach libarena's BPF atomic primitives to use compiler builtins for
load-acquire and store-release when Clang advertises
__BPF_FEATURE_LOAD_ACQ_STORE_REL. Older compilers continue to use the
existing barrier-based fallback.
Notably, as BPF programs begin running on arm64, it is better to use the
more appropriate variants since we can no longer rely on x86 TSO ordering.
Commit 880442305a39 ("bpf: Introduce load-acquire and store-release instructions")
introduced support, hence kernels from 6.15 onwards are needed when
compiling with compilers supporting these instructions. We have
relatively recent kernel version requirements in libarena anyway, and
have not cut first release, hence declare such a dependency.
Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Link: https://lore.kernel.org/bpf/20260722141003.2841007-1-puranjay@kernel.org
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
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Recent check_sections() change added a warning if a documentation tag
member name does not match the detected struct/union member names. Since
the checker knows all possible names, we can suggest known names, so
that it's more obvious how to deal with the warning.
Signed-off-by: Ryszard Knop <ryszard.knop@intel.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260717125753.634550-1-ryszard.knop@intel.com>
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intel_pstate_tracer imports Gnuplot and numpy before parsing command-line
options. As a result, even "-h" fails if those optional runtime modules are
not installed.
Move the imports to the paths that need them. This lets the help and
invalid-argument paths describe usage without requiring plotting/data
dependencies.
While there, fix a typo in the help text and matching comments.
Signed-off-by: Yousef Alhouseen <alhouseenyousef@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20260624122747.5418-1-alhouseenyousef@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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thermometer_add_tz() opens tz_path and then reallocates thermometer->tz.
If realloc fails, the function returns without closing fd.
Close fd before returning on realloc failure to avoid leaking a file descriptor.
Signed-off-by: Amarjeet <amarjeet@intel.com>
Link: https://patch.msgid.link/20260620122637.1334927-1-amarjeet@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add a selftest for the SEG6_IPTUNNEL_TABLE attribute, which selects the FIB
table for the post-encap SID route lookup. This looks up the route for the
first SID, the outer destination of the encapsulated packet.
Two routers provide L3 VPN services over an IPv6 underlay. Each router uses
a separate VRF per tenant, with default blackhole routes (IPv4 and IPv6)
that drop unmatched traffic. Tenant traffic is encapsulated, then
decapsulated with an End.DT46.
The encap routes are installed in the tenant VRF, but the routes that match
the first SIDs live in a separate underlay table (500). The "lookup 500"
attribute points the lookup there rather than to the VRF.
The test covers both the input path, where forwarded host traffic triggers
encapsulation, and the output path, where a router originates traffic from
its own loopback inside a VRF.
With the "lookup" attribute, traffic reaches its destination on both paths.
Without it, on the input path the lookup stays in the VRF and hits the
blackhole, and on the output path it falls through to the main table, which
has no matching route.
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://patch.msgid.link/20260711162907.6521-3-andrea.mayer@uniroma2.it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Verify that a thread pidfd reopened via open_by_handle_at() still
reports PIDFD_THREAD in F_GETFL.
Signed-off-by: Li Chen <me@linux.beauty>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260716052726.1032092-1-me@linux.beauty
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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Alice Mikityanska says:
====================
BIG TCP for UDP tunnels
This series is a follow-up to "BIG TCP without HBH in IPv6", and it adds
support for BIG TCP IPv4/IPv6 workloads in vxlan and geneve. Now that
IPv6 BIG TCP doesn't require stripping the HBH in all various
combinations in tunneled traffic, adding BIG TCP becomes feasible.
Patch 01 adds accessors for the length field in the UDP header, as
suggested by Paolo in review. The usage of udp_set_len is then added in
the following patches that start using length=0 in BIG TCP UDP packets.
Patches 02-04 close the gaps that prevent BIG TCP packets from going
through UDP tunnel code.
Patch 05 validates packets in udp_gro_receive to exclude packets with
length=0 from GRO aggregation.
Patch 06 is for proper formatting in tcpdump (set UDP len to 0 rather
than a trimmed value on overflow).
Patches 07-08 bump up tso_max_size for VXLAN and GENEVE.
Patch 09 adds selftests.
====================$
Link: https://patch.msgid.link/20260710134242.216538-1-alice.kernel@fastmail.im
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The test sets up VXLAN and GENEVE tunnels over IPv4 and IPv6 and runs
IPv4 and IPv6 traffic through them with BIG TCP enabled. It checks that
a non-negligible amount of big aggregated packets are seen by setting up
iptables counters.
Check the number of packets on both TX and RX sides to verify that GSO
packets are valid and not dropped. Capture on the lower netdev (veth),
when checksum offload is on, to verify that encapsulated BIG TCP packets
can get to their destination. In the test with TX checksum offload off,
software GSO splits aggregated VXLAN packets before passing them to
veth, so capture inside the tunnel instead to check that the big packets
are not dropped.
Check that the amount of SACKs is negligible. On unsupported kernels,
some amount of broken GSO packets bigger than 65536 bytes can be
produced in VXLAN tunnels, but they don't reach the destination. Seeing
TCP SACKs is a sign that such packets could have been dropped (in such
cases, the amount of SACKs is a few times bigger than the number of
attempts to send BIG TCP packets).
Signed-off-by: Alice Mikityanska <alice@isovalent.com>
Link: https://patch.msgid.link/20260710134242.216538-10-alice.kernel@fastmail.im
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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To pick up the changes in:
103ff3a50e3a50a9 ("KVM: s390: Add capability to support 2G hugepages")
229132c309d667bb ("LoongArch: KVM: Add DMSINTC device support")
2619da73bb2f10d8 ("KVM: x86: Use __DECLARE_FLEX_ARRAY() for UAPI structures with VLAs")
4aebd7d5c72f805e ("KVM: s390: Add KVM capability for ESA mode guests")
4f256d5770febb9d ("KVM: x86: nSVM: Save/restore gPAT with KVM_{GET,SET}_NESTED_STATE")
822790ab01495d67 ("KVM: x86: Define KVM_X86_QUIRK_NESTED_SVM_SHARED_PAT")
8800dbf6614aad10 ("KVM: arm64: Allow userspace to create protected VMs when pKVM is enabled")
bf8f3cec939db68e ("KVM: s390: vsie: Refactor handle_stfle")
c547c51ff4d44c78 ("KVM: arm64: gic-v5: Add ARM_VGIC_V5 device to KVM headers")
d7507a94a0720223 ("KVM: SVM: Treat exit_code as an unsigned 64-bit value through all of KVM")
This addresses these perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h
diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h
diff -u tools/arch/s390/include/uapi/asm/kvm.h arch/s390/include/uapi/asm/kvm.h
Please see tools/include/uapi/README for further details.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
45e57cfb7b10b64f ("fs: Clarify FS_CASEFOLD_FL semantics in UAPI header")
That don't result in changes to the string tables generated from this header.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/fs.h include/uapi/linux/fs.h
Please see tools/include/uapi/README for further details.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
4987a5763fd5ab72 ("net: block MSG_NO_SHARED_FRAGS in sendmsg()")
That don't result in changes to the string tables generated from this header.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h
Please see tools/include/uapi/README for further details.
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
a1b6cf8e5e7e9102 ("drm: uapi: Use SPDX in DRM core uAPI headers")
dc2d30e7db8321a6 ("drm/doc: document DRM_IOCTL_SYNCOBJ_EVENTFD")
That don't result in changes to the string tables generated from this header.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/drm/drm.h include/uapi/drm/drm.h
Please see tools/include/uapi/README for further details.
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Simon Ser <contact@emersion.fr>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
e93a93f11490992a ("KVM: x86: Virtualize AMD CPUID faulting")
That introduce these new entries in the string tables:
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before.txt
$ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after.txt
$ diff -u before.txt after.txt
@@ -349,6 +349,7 @@
[0xc00102b2 - x86_AMD_V_KVM_MSRs_offset] = "AMD_CPPC_CAP2",
[0xc00102b3 - x86_AMD_V_KVM_MSRs_offset] = "AMD_CPPC_REQ",
[0xc00102b4 - x86_AMD_V_KVM_MSRs_offset] = "AMD_CPPC_STATUS",
+ [0xc00102b5 - x86_AMD_V_KVM_MSRs_offset] = "AMD_CPPC_REQ2",
[0xc00102f0 - x86_AMD_V_KVM_MSRs_offset] = "AMD_PPIN_CTL",
[0xc00102f1 - x86_AMD_V_KVM_MSRs_offset] = "AMD_PPIN",
[0xc0010300 - x86_AMD_V_KVM_MSRs_offset] = "AMD_SAMP_BR_FROM",
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
Please see tools/include/uapi/README for further details.
Cc: Jim Mattson <jmattson@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
5ce9cc5a232b9928 ("coco/tdx-host: Don't expose P-SEAMLDR information on CPUs with erratum")
7658b9343a8f65e5 ("KVM: SVM: add GMET bit definitions")
de0bfdc7137d5132 ("KVM: x86: Advertise AVX512 Bit Matrix Multiply (BMM) to userspace")
That just rebuilds perf, silencing this build warning.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Please see tools/include/uapi/README for further details.
Cc: Chao Gao <chao.gao@intel.com>
Cc: Nikunj A Dadhania <nikunj@amd.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
b56ca146a2b27501 ("vmalloc: add __GFP_SKIP_KASAN support")
6a288a4ddb4a9944 ("mm/page_alloc: fix initialization of tags of the huge zero folio with init_on_free")
That just rebuilds perf, silencing this build warning.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/include/linux/gfp_types.h include/linux/gfp_types.h
Please see tools/include/uapi/README for further details.
Cc: David Hildenbrand (Arm) <david@kernel.org>
Cc: Muhammad Usama Anjum <usama.anjum@arm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
b588019e85f49069 ("rtnetlink: add RTEXT_FILTER_NAME_ONLY support")
That just rebuilds perf, silencing this build warning.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/linux/rtnetlink.h include/uapi/linux/rtnetlink.h
Please see tools/include/uapi/README for further details.
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
de9e2b3d88af3641 ("uapi: Provide DIV_ROUND_CLOSEST()")
That just rebuilds perf, silencing this build warning.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/linux/const.h include/uapi/linux/const.h
Please see tools/include/uapi/README for further details.
Cc: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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In 713eeb2279402758 ("perf build: Move BPF skeleton generation out of
Makefile.perf") the bpf_skel used with 'perf bench uprobe' was moved
from tools/perf/util/bpf_skel/ to tools/perf/bench/bpf_skel.
Copy tools/perf/util/bpf_skel/.gitignore to that new directory so that
files generated during build get ignored by git.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Fixes: 713eeb2279402758 ("perf build: Move BPF skeleton generation out of Makefile.perf")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add a raw BTF test with two bpf_refcount fields. The duplicate must be
rejected during BTF loading instead of reaching the duplicate-field
invariant in btf_parse_fields().
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://patch.msgid.link/20260719153634.2908692-6-memxor@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
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Add a raw BTF test with a spin lock directly in a struct and another in a
nested struct. The duplicate must now be rejected during BTF loading.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://patch.msgid.link/20260719153634.2908692-5-memxor@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
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In these netconsole tests, bash is used with errexit (set -e). It means
that if the busywait timeout, the tests finish without printing an error
message.
It is fine to ignore these errors, because the following validate_xxx
helpers will check the content of the output file, and exit with an
appropriated error message, e.g. FAIL: File was not generated.
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-7-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This psp.py selftest was failing on my side when only using the
drivers/net config file on top of the default one -- the recommended way
to execute selftest targets.
It looks like some kernel config are needed to execute the new tc
commands.
Note that this was not visible on NIPA, because these tests are executed
with the drivers/net/hw ones, combining the two config files, and the hw
one contains the missing ones.
Fixes: 3f74d5bb807e ("selftests/net: Add env for container based tests")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Wei Wang <weibunny@fb.com>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-6-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The default timeout is 45 seconds, that's too low for the xdp.py test.
Indeed, this test can take up to 3 minutes with some debug kernel config
on NIPA. Set a timeout to 6 minutes, just to be on the safe side.
Note that the Fixes tag here points to the introduction of the xdp.py
test because I don't know when this test started to take more than 45
seconds. That's OK because a timeout of 6 minutes is not exaggerated.
Fixes: 1cbcb1b28b26 ("selftests: drv-net: Test XDP_PASS/DROP support")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-5-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The default timeout is 45 seconds, that's too low for a few ovpn tests.
Indeed, these tests can take up to 50 seconds with some debug kernel
config on NIPA. Set a timeout to 90 seconds, just to be on the safe
side.
Note that the Fixes tag here points to the introduction of the ovpn
tests because I don't know when they started to take more than 45
seconds. That's OK because a timeout of 1.5 minutes is not exaggerated.
Fixes: 959bc330a439 ("testing/selftests: add test tool and scripts for ovpn module")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Acked-by: Antonio Quartulli <antonio@openvpn.net>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-4-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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They are required to run the selftests:
- Tests are executed in v4 and v6.
- Virtual Ethernet are used between the different netns.
This has not been seen on NIPA before, because the 'ovpn' tests are
executed with the 'tcp_ao' ones, merging their config files. These two
kernel config are present in tools/testing/selftests/net/tcp_ao/config.
This issue is visible when only the ovpn config is used on top of the
default one. This is the recommended way to execute selftest targets.
Fixes: 959bc330a439 ("testing/selftests: add test tool and scripts for ovpn module")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Acked-by: Antonio Quartulli <antonio@openvpn.net>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-3-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The kselftests doc mentions that a config file should be present "if a
test needs specific kernel config options enabled". This selftest
requires some kernel config, but no config file was provided.
We could say that a sub-target could use the parent's config file, but
the kselftests doc doesn't mention anything about that. Plus the
net/openvswitch target is the only net target without a config file.
Here is a new config file, which is a trimmed version of the net one,
with hopefully the minimal required kconfig on top of 'make defconfig'.
The Fixes tag points to the introduction of the net/openvswitch target,
just to help validating this target on stable kernels.
Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-2-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This is required to use unshare(CLONE_NEWUSER).
This has not been seen on NIPA before, because the 'af_unix' tests are
executed with the 'net' ones, merging their config files. USER_NS is
present in tools/testing/selftests/net/config.
This issue is visible when only the af_unix config is used on top of the
default one. This is the recommended way to execute selftest targets.
Fixes: ac011361bd4f ("af_unix: Add test for sock_diag and UDIAG_SHOW_UID.")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-1-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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