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2025-02-12netlink: specs: wireless: add a spec for nl80211Donald Hunter
Add a rudimentary YNL spec for nl80211 that covers get-wiphy, get-interface and get-protocol-features. ./tools/net/ynl/pyynl/cli.py --family nl80211 \ --do get-protocol-features {'protocol-features': {'split-wiphy-dump'}} ./tools/net/ynl/pyynl/cli.py --family nl80211 \ --dump get-wiphy --json '{ "split-wiphy-dump": true }' ./tools/net/ynl/pyynl/cli.py --family nl80211 \ --dump get-interface Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Link: https://patch.msgid.link/20250211120127.84858-11-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-12tools/net/ynl: add indexed-array scalar support to ynl-gen-cDonald Hunter
Extend ynl-gen-c.py with support for indexed-array that has a scalar sub-type. Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250211120127.84858-8-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-12tools/net/ynl: sanitise enums with leading digits in ynl-gen-cDonald Hunter
Turn attribute names with leading digits into valid C names by prepending an underscore, e.g. 5ghz -> _5ghz Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250211120127.84858-7-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-12tools/net/ynl: add s8, s16 to valid scalars in ynl-gen-cDonald Hunter
Add the missing s8 and s16 scalar types to the list of recognised scalars in ynl-gen-c. Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250211120127.84858-6-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-12tools/net/ynl: accept IP string inputsDonald Hunter
The ynl tool uses display-hint to know when to format IP addresses in printed output, but not to parse IP addresses from --json input. Add support for parsing ipv4 and ipv6 strings. Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250211120127.84858-5-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-12tools/net/ynl: support rendering C array members to stringsDonald Hunter
The nl80211 family encodes the list of supported ciphers as a C array of u32 values. Add support for translating arrays of scalars into strings for enum names and display hints. Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250211120127.84858-4-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-12tools/net/ynl: support decoding indexed arrays as enumsDonald Hunter
When decoding an indexed-array with a scalar subtype, it is currently only possible to add a display-hint. Add support for decoding each value as an enum. Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250211120127.84858-3-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-12tools/net/ynl: remove extraneous plural from variable namesDonald Hunter
_decode_array_attr() uses variable subattrs in every branch when only one branch decodes more than a single attribute. Change the variable name to subattr in the branches that only decode a single attribute so that the intent is more obvious. Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250211120127.84858-2-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-11blackhole_dev: convert self-test to KUnitTamir Duberstein
Convert this very simple smoke test to a KUnit test. Add a missing `htons` call that was spotted[0] by kernel test robot <lkp@intel.com> after initial conversion to KUnit. Link: https://lore.kernel.org/oe-kbuild-all/202502090223.qCYMBjWT-lkp@intel.com/ [0] Signed-off-by: Tamir Duberstein <tamird@gmail.com> Link: https://patch.msgid.link/20250208-blackholedev-kunit-convert-v2-1-182db9bd56ec@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-11selftests/net: Add selftest for IPv4 RTM_GETMULTICAST supportYuyang Huang
This change introduces a new selftest case to verify the functionality of dumping IPv4 multicast addresses using the RTM_GETMULTICAST netlink message. The test utilizes the ynl library to interact with the netlink interface and validate that the kernel correctly reports the joined IPv4 multicast addresses. To run the test, execute the following command: $ vng -v --user root --cpus 16 -- \ make -C tools/testing/selftests TARGETS=net \ TEST_PROGS=rtnetlink.py TEST_GEN_PROGS="" run_tests Cc: Maciej Żenczykowski <maze@google.com> Cc: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: Yuyang Huang <yuyanghuang@google.com> Link: https://patch.msgid.link/20250207110836.2407224-2-yuyanghuang@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-10selftests: drv-net: add helper for path resolutionJakub Kicinski
Refering to C binaries from Python code is going to be a common need. Add a helper to convert from path in relation to the test. Meaning, if the test is in the same directory as the binary, the call would be simply: cfg.rpath("binary"). The helper name "rpath" is not great. I can't think of a better name that would be accurate yet concise. Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/20250207184140.1730466-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-10selftests: drv-net: factor out a DrvEnv base classJakub Kicinski
We have separate Env classes for local tests and tests with a remote endpoint. Make it easier to share the code by creating a base class. Make env loading a method of this class. Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/20250207184140.1730466-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-10selftests: drv-net: remove an unnecessary libmnl includeJakub Kicinski
ncdevmem doesn't need libmnl, remove the unnecessary include. Since YNL doesn't depend on libmnl either, any more, it's actually possible to build selftests without having libmnl installed. Reviewed-by: Mina Almasry <almasrymina@google.com> Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/20250207183119.1721424-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-10selftests: drv-net: rss_ctx: skip tests which need multiple contexts cleanlyJakub Kicinski
There's no good API to check how many contexts device supports. But initial tests sense the context count already, so just store that number and skip tests which we know need more. Link: https://patch.msgid.link/20250206235334.1425329-7-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-10selftests: net-drv: test adding flow rule to invalid RSS contextJakub Kicinski
Check that adding Rx flow steering rules pointing to an RSS context which does not exist is prevented. Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/20250206235334.1425329-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-10netconsole: selftest: test for sysdata CPUBreno Leitao
Add a new selftest to verify that the netconsole module correctly handles CPU runtime data in sysdata. The test validates three scenarios: 1. Basic CPU sysdata functionality - verifies that cpu=X is appended to messages 2. CPU sysdata with userdata - ensures CPU data works alongside userdata 3. Disabled CPU sysdata - confirms no CPU data is included when disabled The test uses taskset to control which CPU sends messages and verifies the reported CPU matches the one used. This helps ensure that netconsole accurately tracks and reports the originating CPU of messages. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-02-07netdevsim: allow normal queue reset while downJakub Kicinski
Resetting queues while the device is down should be legal. Allow it, test it. Ideally we'd test this with a real device supporting devmem but I don't have access to such devices. Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20250206225638.1387810-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-06Merge branch 'io_uring-zero-copy-rx'Jakub Kicinski
David Wei says: ==================== io_uring zero copy rx This patchset contains net/ patches needed by a new io_uring request implementing zero copy rx into userspace pages, eliminating a kernel to user copy. We configure a page pool that a driver uses to fill a hw rx queue to hand out user pages instead of kernel pages. Any data that ends up hitting this hw rx queue will thus be dma'd into userspace memory directly, without needing to be bounced through kernel memory. 'Reading' data out of a socket instead becomes a _notification_ mechanism, where the kernel tells userspace where the data is. The overall approach is similar to the devmem TCP proposal. This relies on hw header/data split, flow steering and RSS to ensure packet headers remain in kernel memory and only desired flows hit a hw rx queue configured for zero copy. Configuring this is outside of the scope of this patchset. We share netdev core infra with devmem TCP. The main difference is that io_uring is used for the uAPI and the lifetime of all objects are bound to an io_uring instance. Data is 'read' using a new io_uring request type. When done, data is returned via a new shared refill queue. A zero copy page pool refills a hw rx queue from this refill queue directly. Of course, the lifetime of these data buffers are managed by io_uring rather than the networking stack, with different refcounting rules. This patchset is the first step adding basic zero copy support. We will extend this iteratively with new features e.g. dynamically allocated zero copy areas, THP support, dmabuf support, improved copy fallback, general optimisations and more. In terms of netdev support, we're first targeting Broadcom bnxt. Patches aren't included since Taehee Yoo has already sent a more comprehensive patchset adding support in [1]. Google gve should already support this, and Mellanox mlx5 support is WIP pending driver changes. =========== Performance =========== Note: Comparison with epoll + TCP_ZEROCOPY_RECEIVE isn't done yet. Test setup: * AMD EPYC 9454 * Broadcom BCM957508 200G * Kernel v6.11 base [2] * liburing fork [3] * kperf fork [4] * 4K MTU * Single TCP flow With application thread + net rx softirq pinned to _different_ cores: +-------------------------------+ | epoll | io_uring | |-----------|-------------------| | 82.2 Gbps | 116.2 Gbps (+41%) | +-------------------------------+ Pinned to _same_ core: +-------------------------------+ | epoll | io_uring | |-----------|-------------------| | 62.6 Gbps | 80.9 Gbps (+29%) | +-------------------------------+ ===== Links ===== Broadcom bnxt support: [1]: https://lore.kernel.org/20241003160620.1521626-8-ap420073@gmail.com Linux kernel branch including io_uring bits: [2]: https://github.com/isilence/linux.git zcrx/v13 liburing for testing: [3]: https://github.com/isilence/liburing.git zcrx/next kperf for testing: [4]: https://git.kernel.dk/kperf.git ==================== Link: https://patch.msgid.link/20250204215622.695511-1-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-06netdev: add io_uring memory provider infoDavid Wei
Add a nested attribute for io_uring memory provider info. For now it is empty and its presence indicates that a particular page pool or queue has an io_uring memory provider attached. $ ./cli.py --spec netlink/specs/netdev.yaml --dump page-pool-get [{'id': 80, 'ifindex': 2, 'inflight': 64, 'inflight-mem': 262144, 'napi-id': 525}, {'id': 79, 'ifindex': 2, 'inflight': 320, 'inflight-mem': 1310720, 'io_uring': {}, 'napi-id': 525}, ... $ ./cli.py --spec netlink/specs/netdev.yaml --dump queue-get [{'id': 0, 'ifindex': 1, 'type': 'rx'}, {'id': 0, 'ifindex': 1, 'type': 'tx'}, {'id': 0, 'ifindex': 2, 'napi-id': 513, 'type': 'rx'}, {'id': 1, 'ifindex': 2, 'napi-id': 514, 'type': 'rx'}, ... {'id': 12, 'ifindex': 2, 'io_uring': {}, 'napi-id': 525, 'type': 'rx'}, ... Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250204215622.695511-6-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.14-rc2). No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-06tools: ynl: add all headers to makefile depsJakub Kicinski
The Makefile.deps lists uAPI headers to make the build work when system headers are older than in-tree headers. The problem doesn't occur for new headers, because system headers are not there at all. But out-of-tree YNL clone on GH also uses this header to identify header dependencies, and one day the system headers will exist, and will get out of date. So let's add the headers we missed. I don't think this is a fix, but FWIW the commits which added the missing headers are: commit 04e65df94b31 ("netlink: spec: add shaper YAML spec") commit 49922401c219 ("ethtool: separate definitions that are gonna be generated") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250205173352.446704-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-06Merge tag 'net-6.14-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Interestingly the recent kmemleak improvements allowed our CI to catch a couple of percpu leaks addressed here. We (mostly Jakub, to be accurate) are working to increase review coverage over the net code-base tweaking the MAINTAINER entries. Current release - regressions: - core: harmonize tstats and dstats - ipv6: fix dst refleaks in rpl, seg6 and ioam6 lwtunnels - eth: tun: revert fix group permission check - eth: stmmac: revert "specify hardware capability value when FIFO size isn't specified" Previous releases - regressions: - udp: gso: do not drop small packets when PMTU reduces - rxrpc: fix race in call state changing vs recvmsg() - eth: ice: fix Rx data path for heavy 9k MTU traffic - eth: vmxnet3: fix tx queue race condition with XDP Previous releases - always broken: - sched: pfifo_tail_enqueue: drop new packet when sch->limit == 0 - ethtool: ntuple: fix rss + ring_cookie check - rxrpc: fix the rxrpc_connection attend queue handling Misc: - recognize Kuniyuki Iwashima as a maintainer" * tag 'net-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (34 commits) Revert "net: stmmac: Specify hardware capability value when FIFO size isn't specified" MAINTAINERS: add a sample ethtool section entry MAINTAINERS: add entry for ethtool rxrpc: Fix race in call state changing vs recvmsg() rxrpc: Fix call state set to not include the SERVER_SECURING state net: sched: Fix truncation of offloaded action statistics tun: revert fix group permission check selftests/tc-testing: Add a test case for qdisc_tree_reduce_backlog() netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() selftests/tc-testing: Add a test case for pfifo_head_drop qdisc when limit==0 pfifo_tail_enqueue: Drop new packet when sch->limit == 0 selftests: mptcp: connect: -f: no reconnect net: rose: lock the socket in rose_bind() net: atlantic: fix warning during hot unplug rxrpc: Fix the rxrpc_connection attend queue handling net: harmonize tstats and dstats selftests: drv-net: rss_ctx: don't fail reconfigure test if queue offset not supported selftests: drv-net: rss_ctx: add missing cleanup in queue reconfigure ethtool: ntuple: fix rss + ring_cookie check ethtool: rss: fix hiding unsupported fields in dumps ...
2025-02-06tools: ynl-gen: support limits using definitionsJakub Kicinski
Support using defines / constants in integer checks. Carolina will need this for rate API extensions. Reported-by: Carolina Jubran <cjubran@nvidia.com> Link: https://lore.kernel.org/1e886aaf-e1eb-4f1a-b7ef-f63b350a3320@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20250203215510.1288728-2-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-06tools: ynl-gen: don't output external constantsJakub Kicinski
A definition with a "header" property is an "external" definition for C code, as in it is defined already in another C header file. Other languages will need the exact value but C codegen should not recreate it. So don't output those definitions in the uAPI header. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20250203215510.1288728-1-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-05selftests: forwarding: vxlan_bridge_1d: Check aging while forwardingIdo Schimmel
Extend the VXLAN FDB aging test case to verify that FDB entries are aged out when they only forward traffic and not refreshed by received traffic. The test fails before "vxlan: Age out FDB entries based on 'updated' time": # ./vxlan_bridge_1d.sh [...] TEST: VXLAN: Ageing of learned FDB entry [FAIL] [...] # echo $? 1 And passes after it: # ./vxlan_bridge_1d.sh [...] TEST: VXLAN: Ageing of learned FDB entry [ OK ] [...] # echo $? 0 Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20250204145549.1216254-9-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-05selftests/tc-testing: Add a test case for qdisc_tree_reduce_backlog()Cong Wang
Integrate the test case provided by Mingi Cho into TDC. All test results: 1..4 ok 1 ca5e - Check class delete notification for ffff: ok 2 e4b7 - Check class delete notification for root ffff: ok 3 33a9 - Check ingress is not searchable on backlog update ok 4 a4b9 - Test class qlen notification Cc: Mingi Cho <mincho@theori.io> Signed-off-by: Cong Wang <cong.wang@bytedance.com> Link: https://patch.msgid.link/20250204005841.223511-5-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-05selftests/tc-testing: Add a test case for pfifo_head_drop qdisc when limit==0Quang Le
When limit == 0, pfifo_tail_enqueue() must drop new packet and increase dropped packets count of the qdisc. All test results: 1..16 ok 1 a519 - Add bfifo qdisc with system default parameters on egress ok 2 585c - Add pfifo qdisc with system default parameters on egress ok 3 a86e - Add bfifo qdisc with system default parameters on egress with handle of maximum value ok 4 9ac8 - Add bfifo qdisc on egress with queue size of 3000 bytes ok 5 f4e6 - Add pfifo qdisc on egress with queue size of 3000 packets ok 6 b1b1 - Add bfifo qdisc with system default parameters on egress with invalid handle exceeding maximum value ok 7 8d5e - Add bfifo qdisc on egress with unsupported argument ok 8 7787 - Add pfifo qdisc on egress with unsupported argument ok 9 c4b6 - Replace bfifo qdisc on egress with new queue size ok 10 3df6 - Replace pfifo qdisc on egress with new queue size ok 11 7a67 - Add bfifo qdisc on egress with queue size in invalid format ok 12 1298 - Add duplicate bfifo qdisc on egress ok 13 45a0 - Delete nonexistent bfifo qdisc ok 14 972b - Add prio qdisc on egress with invalid format for handles ok 15 4d39 - Delete bfifo qdisc twice ok 16 d774 - Check pfifo_head_drop qdisc enqueue behaviour when limit == 0 Signed-off-by: Quang Le <quanglex97@gmail.com> Signed-off-by: Cong Wang <cong.wang@bytedance.com> Link: https://patch.msgid.link/20250204005841.223511-3-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-05selftests: mptcp: connect: -f: no reconnectMatthieu Baerts (NGI0)
The '-f' parameter is there to force the kernel to emit MPTCP FASTCLOSE by closing the connection with unread bytes in the receive queue. The xdisconnect() helper was used to stop the connection, but it does more than that: it will shut it down, then wait before reconnecting to the same address. This causes the mptcp_join's "fastclose test" to fail all the time. This failure is due to a recent change, with commit 218cc166321f ("selftests: mptcp: avoid spurious errors on disconnect"), but that went unnoticed because the test is currently ignored. The recent modification only shown an existing issue: xdisconnect() doesn't need to be used here, only the shutdown() part is needed. Fixes: 6bf41020b72b ("selftests: mptcp: update and extend fastclose test-cases") Cc: stable@vger.kernel.org Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250204-net-mptcp-sft-conn-f-v1-1-6b470c72fffa@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-05bridge: mdb: Allow replace of a host-joined groupPetr Machata
Attempts to replace an MDB group membership of the host itself are currently bounced: # ip link add name br up type bridge vlan_filtering 1 # bridge mdb replace dev br port br grp 239.0.0.1 vid 2 # bridge mdb replace dev br port br grp 239.0.0.1 vid 2 Error: bridge: Group is already joined by host. A similar operation done on a member port would succeed. Ignore the check for replacement of host group memberships as well. The bit of code that this enables is br_multicast_host_join(), which, for already-joined groups only refreshes the MC group expiration timer, which is desirable; and a userspace notification, also desirable. Change a selftest that exercises this code path from expecting a rejection to expecting a pass. The rest of MDB selftests pass without modification. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/e5c5188b9787ae806609e7ca3aa2a0a501b9b5c4.1738685648.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-05selftests: net: suppress ReST file generation when building selftestsJakub Kicinski
Some selftests need libynl.a. When building it try to skip generating the ReST documentation, libynl.a does not depend on them. Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250203214850.1282291-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-04netconsole: selftest: Add test for fragmented messagesBreno Leitao
Add a new selftest to verify netconsole's handling of messages that exceed the packet size limit and require fragmentation. The test sends messages with varying sizes and userdata, validating that: 1. Large messages are correctly fragmented and reassembled 2. Userdata fields are properly preserved across fragments 3. Messages work correctly with and without kernel release version appending The test creates a networking environment using netdevsim, sends messages through /dev/kmsg, and verifies the received fragments maintain message integrity. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250203-netcons_frag_msgs-v1-1-5bc6bedf2ac0@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-04Merge tag 'livepatching-for-6.14-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching fix from Petr Mladek: - Fix livepatching selftests for util-linux-2.40.x * tag 'livepatching-for-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: selftests: livepatch: handle PRINTK_CALLER in check_result()
2025-02-03selftests: drv-net: rss_ctx: don't fail reconfigure test if queue offset not ↵Jakub Kicinski
supported Vast majority of drivers does not support queue offset. Simply return if the rss context + queue ntuple fails. Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/20250201013040.725123-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-03selftests: drv-net: rss_ctx: add missing cleanup in queue reconfigureJakub Kicinski
Commit under Fixes adds ntuple rules but never deletes them. Fixes: 29a4bc1fe961 ("selftest: extend test_rss_context_queue_reconfigure for action addition") Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/20250201013040.725123-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-03udp: gso: do not drop small packets when PMTU reducesYan Zhai
Commit 4094871db1d6 ("udp: only do GSO if # of segs > 1") avoided GSO for small packets. But the kernel currently dismisses GSO requests only after checking MTU/PMTU on gso_size. This means any packets, regardless of their payload sizes, could be dropped when PMTU becomes smaller than requested gso_size. We encountered this issue in production and it caused a reliability problem that new QUIC connection cannot be established before PMTU cache expired, while non GSO sockets still worked fine at the same time. Ideally, do not check any GSO related constraints when payload size is smaller than requested gso_size, and return EMSGSIZE instead of EINVAL on MTU/PMTU check failure to be more specific on the error cause. Fixes: 4094871db1d6 ("udp: only do GSO if # of segs > 1") Signed-off-by: Yan Zhai <yan@cloudflare.com> Suggested-by: Willem de Bruijn <willemdebruijn.kernel@gmail.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-02-02Merge tag 'turbostat-2025.02.02' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat updates from Len Brown: - Fix regression that affinitized forked child in one-shot mode. - Harden one-shot mode against hotplug online/offline - Enable RAPL SysWatt column by default - Add initial PTL, CWF platform support - Harden initial PMT code in response to early use - Enable first built-in PMT counter: CWF c1e residency - Refuse to run on unsupported platforms without --force, to encourage updating to a version that supports the system, and to avoid no-so-useful measurement results * tag 'turbostat-2025.02.02' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (25 commits) tools/power turbostat: version 2025.02.02 tools/power turbostat: Add CPU%c1e BIC for CWF tools/power turbostat: Harden one-shot mode against cpu offline tools/power turbostat: Fix forked child affinity regression tools/power turbostat: Add tcore clock PMT type tools/power turbostat: version 2025.01.14 tools/power turbostat: Allow adding PMT counters directly by sysfs path tools/power turbostat: Allow mapping multiple PMT files with the same GUID tools/power turbostat: Add PMT directory iterator helper tools/power turbostat: Extend PMT identification with a sequence number tools/power turbostat: Return default value for unmapped PMT domains tools/power turbostat: Check for non-zero value when MSR probing tools/power turbostat: Enhance turbostat self-performance visibility tools/power turbostat: Add fixed RAPL PSYS divisor for SPR tools/power turbostat: Fix PMT mmaped file size rounding tools/power turbostat: Remove SysWatt from DISABLED_BY_DEFAULT tools/power turbostat: Add an NMI column tools/power turbostat: add Busy% to "show idle" tools/power turbostat: Introduce --force parameter tools/power turbostat: Improve --help output ...
2025-02-02tools/power turbostat: version 2025.02.02Len Brown
Summary of Changes since 2024.11.30: Fix regression in 2023.11.07 that affinitized forked child in one-shot mode. Harden one-shot mode against hotplug online/offline Enable RAPL SysWatt column by default. Add initial PTL, CWF platform support. Harden initial PMT code in response to early use. Enable first built-in PMT counter: CWF c1e residency Refuse to run on unsupported platforms without --force, to encourage updating to a version that supports the system, and to avoid no-so-useful measurement results. Signed-off-by: Len Brown <len.brown@intel.com>
2025-01-31Merge tag 'AT_EXECVE_CHECK-v6.14-rc1-fix1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull AT_EXECVE_CHECK selftest fix from Kees Cook: "Fixes the AT_EXECVE_CHECK selftests which didn't run on old versions of glibc" * tag 'AT_EXECVE_CHECK-v6.14-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests: Handle old glibc without execveat(2)
2025-01-31Merge tag 'riscv-for-linus-6.14-mw1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - The PH1520 pinctrl and dwmac drivers are enabeled in defconfig - A redundant AQRL barrier has been removed from the futex cmpxchg implementation - Support for the T-Head vector extensions, which includes exposing these extensions to userspace on systems that implement them - Some more page table information is now printed on die() and systems that cause PA overflows * tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: add a warning when physical memory address overflows riscv/mm/fault: add show_pte() before die() riscv: Add ghostwrite vulnerability selftests: riscv: Support xtheadvector in vector tests selftests: riscv: Fix vector tests riscv: hwprobe: Document thead vendor extensions and xtheadvector extension riscv: hwprobe: Add thead vendor extension probing riscv: vector: Support xtheadvector save/restore riscv: Add xtheadvector instruction definitions riscv: csr: Add CSR encodings for CSR_VXRM/CSR_VXSAT RISC-V: define the elements of the VCSR vector CSR riscv: vector: Use vlenb from DT for thead riscv: Add thead and xtheadvector as a vendor extension riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree dt-bindings: cpus: add a thead vlen register length property dt-bindings: riscv: Add xtheadvector ISA extension description RISC-V: Mark riscv_v_init() as __init riscv: defconfig: drop RT_GROUP_SCHED=y riscv/futex: Optimize atomic cmpxchg riscv: defconfig: enable pinctrl and dwmac support for TH1520
2025-01-31Merge tag 'x86-mm-2025-01-31' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm updates from Ingo Molnar: - The biggest changes are the TLB flushing scalability optimizations, to update the mm_cpumask lazily and related changes. This feature has both a track record and a continued risk of performance regressions, so it was already delayed by a cycle - but it's all 100% perfect now™ (Rik van Riel) - Also miscellaneous fixes and cleanups. (Gautam Somani, Kirill Shutemov, Sebastian Andrzej Siewior) * tag 'x86-mm-2025-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Remove unnecessary include of <linux/extable.h> x86/mtrr: Rename mtrr_overwrite_state() to guest_force_mtrr_state() x86/mm/selftests: Fix typo in lam.c x86/mm/tlb: Only trim the mm_cpumask once a second x86/mm/tlb: Also remove local CPU from mm_cpumask if stale x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU x86/mm/tlb: Update mm_cpumask lazily
2025-01-30Merge tag 'perf-tools-fixes-for-v6.14-2025-01-30' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf tools fixes from Namhyung Kim: "An early round of random fixes in perf tools for this cycle. perf trace: - Fix loading of BPF program on certain clang versions - Fix out-of-bound access in syscalls with 6 arguments - Skip syscall enum test if landlock syscall is not available perf annotate: - Fix segfaults due to invalid access in disasm arrays perf stat: - Fix error handling in topology parsing" * tag 'perf-tools-fixes-for-v6.14-2025-01-30' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: perf cpumap: Fix die and cluster IDs perf test: Skip syscall enum test if no landlock syscall perf trace: Fix runtime error of index out of bounds perf annotate: Use an array for the disassembler preference perf trace: Fix BPF loading failure (-E2BIG)
2025-01-30Merge tag 'net-6.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from IPSec, netfilter and Bluetooth. Nothing really stands out, but as usual there's a slight concentration of fixes for issues added in the last two weeks before the merge window, and driver bugs from 6.13 which tend to get discovered upon wider distribution. Current release - regressions: - net: revert RTNL changes in unregister_netdevice_many_notify() - Bluetooth: fix possible infinite recursion of btusb_reset - eth: adjust locking in some old drivers which protect their state with spinlocks to avoid sleeping in atomic; core protects netdev state with a mutex now Previous releases - regressions: - eth: - mlx5e: make sure we pass node ID, not CPU ID to kvzalloc_node() - bgmac: reduce max frame size to support just 1500 bytes; the jumbo frame support would previously cause OOB writes, but now fails outright - mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted, avoid false detection of MPTCP blackholing Previous releases - always broken: - mptcp: handle fastopen disconnect correctly - xfrm: - make sure skb->sk is a full sock before accessing its fields - fix taking a lock with preempt disabled for RT kernels - usb: ipheth: improve safety of packet metadata parsing; prevent potential OOB accesses - eth: renesas: fix missing rtnl lock in suspend/resume path" * tag 'net-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits) MAINTAINERS: add Neal to TCP maintainers net: revert RTNL changes in unregister_netdevice_many_notify() net: hsr: fix fill_frame_info() regression vs VLAN packets doc: mptcp: sysctl: blackhole_timeout is per-netns mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted netfilter: nf_tables: reject mismatching sum of field_len with set key length net: sh_eth: Fix missing rtnl lock in suspend/resume path net: ravb: Fix missing rtnl lock in suspend/resume path selftests/net: Add test for loading devbound XDP program in generic mode net: xdp: Disallow attaching device-bound programs in generic mode tcp: correct handling of extreme memory squeeze bgmac: reduce max frame size to support just MTU 1500 vsock/test: Add test for connect() retries vsock/test: Add test for UAF due to socket unbinding vsock/test: Introduce vsock_connect_fd() vsock/test: Introduce vsock_bind() vsock: Allow retrying on connect() failure vsock: Keep the binding until socket destruction Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection Bluetooth: btnxpuart: Fix glitches seen in dual A2DP streaming ...
2025-01-30Merge tag 'gpio-fixes-for-v6.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - update gpio-sim selftests to not fail now that we no longer allow rmdir() on configfs entries of active devices - remove leftover code from gpio-mxc * tag 'gpio-fixes-for-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: selftests: gpio: gpio-sim: Fix missing chip disablements gpio: mxc: remove dead code after switch to DT-only
2025-01-30Merge tag 'pull-revalidate' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs d_revalidate updates from Al Viro: "Provide stable parent and name to ->d_revalidate() instances Most of the filesystem methods where we care about dentry name and parent have their stability guaranteed by the callers; ->d_revalidate() is the major exception. It's easy enough for callers to supply stable values for expected name and expected parent of the dentry being validated. That kills quite a bit of boilerplate in ->d_revalidate() instances, along with a bunch of races where they used to access ->d_name without sufficient precautions" * tag 'pull-revalidate' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: 9p: fix ->rename_sem exclusion orangefs_d_revalidate(): use stable parent inode and name passed by caller ocfs2_dentry_revalidate(): use stable parent inode and name passed by caller nfs: fix ->d_revalidate() UAF on ->d_name accesses nfs{,4}_lookup_validate(): use stable parent inode passed by caller gfs2_drevalidate(): use stable parent inode and name passed by caller fuse_dentry_revalidate(): use stable parent inode and name passed by caller vfat_revalidate{,_ci}(): use stable parent inode passed by caller exfat_d_revalidate(): use stable parent inode passed by caller fscrypt_d_revalidate(): use stable parent inode passed by caller ceph_d_revalidate(): propagate stable name down into request encoding ceph_d_revalidate(): use stable parent inode passed by caller afs_d_revalidate(): use stable name and parent inode passed by caller Pass parent directory inode and expected name to ->d_revalidate() generic_ci_d_compare(): use shortname_storage ext4 fast_commit: make use of name_snapshot primitives dissolve external_name.u into separate members make take_dentry_name_snapshot() lockless dcache: back inline names with a struct-wrapped array of unsigned long make sure that DNAME_INLINE_LEN is a multiple of word size
2025-01-29selftests/net: Add test for loading devbound XDP program in generic modeToke Høiland-Jørgensen
Add a test to bpf_offload.py for loading a devbound XDP program in generic mode, checking that it fails correctly. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250127131344.238147-2-toke@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-29vsock/test: Add test for connect() retriesMichal Luczaj
Deliberately fail a connect() attempt; expect error. Then verify that subsequent attempt (using the same socket) can still succeed, rather than fail outright. Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Luigi Leonardi <leonardi@redhat.com> Signed-off-by: Michal Luczaj <mhal@rbox.co> Link: https://patch.msgid.link/20250128-vsock-transport-vs-autobind-v3-6-1cf57065b770@rbox.co Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-29vsock/test: Add test for UAF due to socket unbindingMichal Luczaj
Fail the autobind, then trigger a transport reassign. Socket might get unbound from unbound_sockets, which then leads to a reference count underflow. Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michal Luczaj <mhal@rbox.co> Link: https://patch.msgid.link/20250128-vsock-transport-vs-autobind-v3-5-1cf57065b770@rbox.co Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-29vsock/test: Introduce vsock_connect_fd()Michal Luczaj
Distill timeout-guarded vsock_connect_fd(). Adapt callers. Suggested-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michal Luczaj <mhal@rbox.co> Link: https://patch.msgid.link/20250128-vsock-transport-vs-autobind-v3-4-1cf57065b770@rbox.co Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-29vsock/test: Introduce vsock_bind()Michal Luczaj
Add a helper for socket()+bind(). Adapt callers. Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Luigi Leonardi <leonardi@redhat.com> Signed-off-by: Michal Luczaj <mhal@rbox.co> Link: https://patch.msgid.link/20250128-vsock-transport-vs-autobind-v3-3-1cf57065b770@rbox.co Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-29Merge tag 'cxl-for-6.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull Compute Express Link (CXL) updates from Dave Jiang: "A tweak to the HMAT output that was acked by Rafael, a prep patch for CXL type2 devices support that's coming soon, refactoring of the CXL regblock enumeration code, and a series of patches to update the event records to CXL spec r3.1: - Move HMAT printouts to pr_debug() - Add CXL type2 support to cxl_dvsec_rr_decode() in preparation for type2 support - A series that updates CXL event records to spec r3.1 and related changes - Refactoring of cxl_find_regblock_instance() to count regblocks" * tag 'cxl-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl/core/regs: Refactor out functions to count regblocks of given type cxl/test: Update test code for event records to CXL spec rev 3.1 cxl/events: Update Memory Module Event Record to CXL spec rev 3.1 cxl/events: Update DRAM Event Record to CXL spec rev 3.1 cxl/events: Update General Media Event Record to CXL spec rev 3.1 cxl/events: Add Component Identifier formatting for CXL spec rev 3.1 cxl/events: Update Common Event Record to CXL spec rev 3.1 cxl/pci: Add CXL Type 1/2 support to cxl_dvsec_rr_decode() ACPI/HMAT: Move HMAT messages to pr_debug()
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-30 00:45:48 +0000