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2025-07-15selftests: ublk: pass 'ublk_thread *' to more common helpersMing Lei
Pass 'ublk_thread *' to more common helpers, then we can avoid to store this reference into 'struct ublk_io'. Prepare for supporting to handle IO via different task context. Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250713143415.2857561-14-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-07-15selftests: ublk: pass 'ublk_thread *' to ->queue_io() and ->tgt_io_done()Ming Lei
'struct thread' is task local structure, and the related code will become more readable if we pass it via parameter. Meantime pass 'ublk_thread *' to ublk_io_alloc_sqes(), and this way is natural since we use per-thread io_uring for handling IO. More importantly it helps much for removing the current ubq_daemon or per-io-task limit. Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250713143415.2857561-13-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-07-15selftests: ublk: remove `tag` parameter of ->tgt_io_done()Ming Lei
The `tag` parameter can be figured out from cqe->user_data, and that is also the only way to get the info, so remove `tag` parameter, and let target code retrieve it from cqe->user_data. Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250713143415.2857561-12-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-07-15selftests: net: increase inter-packet timeout in udpgro.shPaolo Abeni
The mentioned test is not very stable when running on top of debug kernel build. Increase the inter-packet timeout to allow more slack in such environments. Fixes: 3327a9c46352 ("selftests: add functionals test for UDP GRO") Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/b0370c06ddb3235debf642c17de0284b2cd3c652.1752163107.git.pabeni@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-07-14selftests/net: packetdrill: add tcp_rcv_toobig.pktEric Dumazet
Check that TCP receiver behavior after "tcp: stronger sk_rcvbuf checks" Too fat packet is dropped unless receive queue is empty. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250711114006.480026-9-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-14selftests/net: packetdrill: add tcp_ooo_rcv_mss.pktEric Dumazet
We make sure tcpi_rcv_mss and tp->scaling_ratio are correctly updated if no in-order packet has been received yet. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250711114006.480026-6-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-14selftests/net: packetdrill: add tcp_rcv_big_endseq.pktEric Dumazet
This test checks TCP behavior when receiving a packet beyond the window. It checks the new TcpExtBeyondWindow SNMP counter. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250711114006.480026-4-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-14Add support to set NAPI threaded for individual NAPISamiullah Khawaja
A net device has a threaded sysctl that can be used to enable threaded NAPI polling on all of the NAPI contexts under that device. Allow enabling threaded NAPI polling at individual NAPI level using netlink. Extend the netlink operation `napi-set` and allow setting the threaded attribute of a NAPI. This will enable the threaded polling on a NAPI context. Add a test in `nl_netdev.py` that verifies various cases of threaded NAPI being set at NAPI and at device level. Tested ./tools/testing/selftests/net/nl_netdev.py TAP version 13 1..7 ok 1 nl_netdev.empty_check ok 2 nl_netdev.lo_check ok 3 nl_netdev.page_pool_check ok 4 nl_netdev.napi_list_check ok 5 nl_netdev.dev_set_threaded ok 6 nl_netdev.napi_set_threaded ok 7 nl_netdev.nsim_rxq_reset_down # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Samiullah Khawaja <skhawaja@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250710211203.3979655-1-skhawaja@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-14selftests: net: add test for variable PMTU in broadcast routesOscar Maes
Added a test for variable PMTU in broadcast routes. This test uses iputils' ping and attempts to send a ping between two peers, which should result in a regular echo reply. This test will fail when the receiving peer does not receive the echo request due to a lack of packet fragmentation. Signed-off-by: Oscar Maes <oscmaes92@gmail.com> Link: https://patch.msgid.link/20250710142714.12986-2-oscmaes92@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-14selftests/tc-testing: Create test cases for adding qdiscs to invalid qdisc ↵Victor Nogueira
parents As described in a previous commit [1], Lion's patch [2] revealed an ancient bug in the qdisc API. Whenever a user tries to add a qdisc to an invalid parent (not a class, root, or ingress qdisc), the qdisc API will detect this after qdisc_create is called. Some qdiscs (like fq_codel, pie, and sfq) call functions (on their init callback) which assume the parent is valid, so qdisc_create itself may have caused a NULL pointer dereference in such cases. This commit creates 3 TDC tests that attempt to add fq_codel, pie and sfq qdiscs to invalid parents - Attempts to add an fq_codel qdisc to an hhf qdisc parent - Attempts to add a pie qdisc to a drr qdisc parent - Attempts to add an sfq qdisc to an inexistent hfsc classid (which would belong to a valid hfsc qdisc) [1] https://lore.kernel.org/all/20250707210801.372995-1-victor@mojatatu.com/ [2] https://lore.kernel.org/netdev/d912cbd7-193b-4269-9857-525bee8bbb6a@gmail.com/ Signed-off-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20250712145035.705156-1-victor@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-14selftests: drv-net: add rss_api to the MakefileJakub Kicinski
I missed adding rss_api.py to the Makefile. The NIPA Makefile checking script was scanning for shell scripts only, so it didn't flag it either. Fixes: 4d13c6c449af ("selftests: drv-net: test RSS Netlink notifications") Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250712012005.4010263-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-14selftests/bpf: Add tests for bucket resume logic in established socketsJordan Rife
Replicate the set of test cases used for UDP socket iterators to test similar scenarios for TCP established sockets. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-07-14selftests/bpf: Create iter_tcp_destroy test programJordan Rife
Prepare for bucket resume tests for established TCP sockets by creating a program to immediately destroy and remove sockets from the TCP ehash table, since close() is not deterministic. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-07-14selftests/bpf: Create established sockets in socket iterator testsJordan Rife
Prepare for bucket resume tests for established TCP sockets by creating established sockets. Collect socket fds from connect() and accept() sides and pass them to test cases. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-07-14selftests/bpf: Make ehash buckets configurable in socket iterator testsJordan Rife
Prepare for bucket resume tests for established TCP sockets by making the number of ehash buckets configurable. Subsequent patches force all established sockets into the same bucket by setting ehash_buckets to one. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-07-14selftests/bpf: Allow for iteration over multiple statesJordan Rife
Add parentheses around loopback address check to fix up logic and make the socket state filter configurable for the TCP socket iterators. Iterators can skip the socket state check by setting ss to 0. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-07-14selftests/bpf: Allow for iteration over multiple portsJordan Rife
Prepare to test TCP socket iteration over both listening and established sockets by allowing the BPF iterator programs to skip the port check. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-07-14selftests/bpf: Add tests for bucket resume logic in listening socketsJordan Rife
Replicate the set of test cases used for UDP socket iterators to test similar scenarios for TCP listening sockets. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-07-14selftests: netfilter: nft_concat_range.sh: send packets to empty setFlorian Westphal
The selftest doesn't cover this error path: scratch = *raw_cpu_ptr(m->scratch); if (unlikely(!scratch)) { // here cover this too. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: conntrack_resize.sh: also use udpclash toolFlorian Westphal
Previous patch added a new clash resolution test case. Also use this during conntrack resize stress test in addition to icmp ping flood. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: add conntrack clash resolution test caseFlorian Westphal
Add a dedicated test to exercise conntrack clash resolution path. Test program emits 128 identical udp packets in parallel, then reads back replies from socat echo server. Also check (via conntrack -S) that the clash path was hit at least once. Due to the racy nature of the test its possible that despite the threaded program all packets were processed in-order or on same cpu, emit a SKIP warning in this case. Two tests are added: - one to test the simpler, non-nat case - one to exercise clash resolution where packets might have different nat transformations attached to them. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: conntrack_resize.sh: extend resize testFlorian Westphal
Extend the resize test: - continuously dump table both via /proc and ctnetlink interfaces while table is resized in a loop. - if socat is available, send udp packets in additon to ping requests. - increase/decrease the icmp and udp timeouts while resizes are happening. This makes sure we also exercise the 'ct has expired' check that happens on conntrack lookup. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-13selftests/nolibc: add x32 test configurationThomas Weißschuh
Nolibc supports the x32 ABI on x86. Add a testcase to make sure the support stays functional. QEMU user does not have support for x32, so skip the test there. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250712-nolibc-x32-v1-2-6d81cb798710@weissschuh.net
2025-07-13selftests/hid: add a test case for the recent syzbot underflowBenjamin Tissoires
Syzbot found a buffer underflow in __hid_request(). Add a related test case for it. It's not perfect, but it allows to catch a corner case when a report descriptor is crafted so that it has a size of 0. Link: https://patch.msgid.link/20250710-report-size-null-v2-4-ccf922b7c4e5@kernel.org Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2025-07-11selftests/net: packetdrill: add --mss option to three testsEric Dumazet
Three tests are cooking GSO packets but do not provide gso_size information to the kernel, triggering this message: TCP: tun0: Driver has suspect GRO implementation, TCP performance may be compromised. Add --mss option to avoid this warning. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250710155641.3028726-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11selftests: net: add netdev-l2addr.sh for testing L2 address functionalityToke Høiland-Jørgensen
Add a new test script to the network selftests which tests getting and setting of layer 2 addresses through netlink, including the newly added support for setting a permaddr on netdevsim devices. Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://patch.msgid.link/20250710-netdevsim-perm_addr-v4-2-c9db2fecf3bf@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11selftests: flip local/remote endpoints in iou-zcrx.pyVishwanath Seshagiri
The iou-zcrx selftest currently runs the server on the remote host and the client on the local host. This commit flips the endpoints such that server runs on localhost and client on remote. This change brings the iou-zcrx selftest in convention with other selftests. Drive-by fix for a missing import exception that happens when the network interface has less than 2 combined channels. Test plan: ran iou-zcrx.py selftest between 2 physical machines Signed-off-by: Vishwanath Seshagiri <vishs@fb.com> Link: https://patch.msgid.link/20250710165337.614159-1-vishs@meta.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11selftests/tc-testing: Add tests for restrictions on netem duplicationWilliam Liu
Ensure that a duplicating netem cannot exist in a tree with other netems in both qdisc addition and change. This is meant to prevent the soft lockup and OOM loop scenario discussed in [1]. Also adjust a HFSC's re-entrancy test case with netem for this new restriction - KASAN still triggers upon its failure. [1] https://lore.kernel.org/netdev/8DuRWwfqjoRDLDmBMlIfbrsZg9Gx50DHJc1ilxsEBNe2D6NMoigR_eIRIG0LOjMc3r10nUUZtArXx4oZBIdUfZQrwjcQhdinnMis_0G7VEk=@willsroot.io/ Signed-off-by: William Liu <will@willsroot.io> Reviewed-by: Savino Dicanosa <savy@syst3mfailure.io> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/20250708164219.875521-1-will@willsroot.io Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc6-2). No conflicts. Adjacent changes: drivers/net/wireless/mediatek/mt76/mt7925/mcu.c c701574c5412 ("wifi: mt76: mt7925: fix invalid array index in ssid assignment during hw scan") b3a431fe2e39 ("wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan()") drivers/net/wireless/mediatek/mt76/mt7996/mac.c 62da647a2b20 ("wifi: mt76: mt7996: Add MLO support to mt7996_tx_check_aggr()") dc66a129adf1 ("wifi: mt76: add a wrapper for wcid access with validation") drivers/net/wireless/mediatek/mt76/mt7996/main.c 3dd6f67c669c ("wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl()") 8989d8e90f5f ("wifi: mt76: mt7996: Do not set wcid.sta to 1 in mt7996_mac_sta_event()") net/mac80211/cfg.c 58fcb1b4287c ("wifi: mac80211: reject VHT opmode for unsupported channel widths") 037dc18ac3fb ("wifi: mac80211: add support for storing station S1G capabilities") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11selftests/bpf: Range analysis test case for JSETPaul Chaignon
This patch adds coverage for the warning detected by syzkaller and fixed in the previous patch. Without the previous patch, this test fails with: verifier bug: REG INVARIANTS VIOLATION (false_reg1): range bounds violation u64=[0x0, 0x0] s64=[0x0, 0x0] u32=[0x1, 0x0] s32=[0x0, 0x0] var_off=(0x0, 0x0)(1) Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/c7893be1170fdbcf64e0200c110cdbd360ce7086.1752171365.git.paul.chaignon@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-11selftests/bpf: add selftests for bpf_arena_reserve_pagesEmil Tsalapatis
Add selftests for the new bpf_arena_reserve_pages kfunc. Acked-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250709191312.29840-3-emil@etsalapatis.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-11iommufd/selftest: Update hw_info coverage for an input data_typeNicolin Chen
Test both IOMMU_HW_INFO_TYPE_DEFAULT and IOMMU_HW_INFO_TYPE_SELFTEST, and add a negative test for an unsupported type. Also drop the unused mask in test_cmd_get_hw_capabilities() as checkpatch is complaining. Link: https://patch.msgid.link/r/f01a1e50cd7366f217cbf192ad0b2b79e0eb89f0.1752126748.git.nicolinc@nvidia.com Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Pranjal Shrivastava <praan@google.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-11iommufd/selftest: Add coverage for the new mmap interfaceNicolin Chen
Extend the loopback test to a new mmap page. Link: https://patch.msgid.link/r/b02b1220c955c3cf9ea5dd9fe9349ab1b4f8e20b.1752126748.git.nicolinc@nvidia.com Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Pranjal Shrivastava <praan@google.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-11selftests: drv-net: Add bpftool utilMohsin Bashir
Add bpf utility to simplify the use of bpftool for XDP tests included in this series. Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com> Link: https://patch.msgid.link/20250710184351.63797-2-mohsin.bashr@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11iommufd/selftest: Add coverage for IOMMUFD_CMD_HW_QUEUE_ALLOCNicolin Chen
Some simple tests for IOMMUFD_CMD_HW_QUEUE_ALLOC infrastructure covering the new iommufd_hw_queue_depend/undepend() helpers. Link: https://patch.msgid.link/r/e8a194d187d7ef445f43e4a3c04fb39472050afd.1752126748.git.nicolinc@nvidia.com Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Pranjal Shrivastava <praan@google.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-11selftests/futex: Remove support for IMMUTABLESebastian Andrzej Siewior
Testing for the IMMUTABLE part of the futex interface is not needed after the removal of the interface. Remove support for IMMUTABLE from the sefltest. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250710110011.384614-6-bigeasy@linutronix.de
2025-07-11selftests/futex: Adapt the private hash test to RCU related changesSebastian Andrzej Siewior
The auto scaling on create creation used to automatically assign the new hash because there was the private hash was unused and could be replaced right away. This is already racy because if the private hash is in use by a thread then the visibile resize will be delayed. With the upcoming change to wait for a RCU grace period before the hash can be assigned, the test will always fail. If the reported number of hash buckets is not updated after an auto scaling event, block on an acquired lock with a timeout. The timeout is the delay to wait towards a grace period and locking and a locked pthread_mutex_t ensure that glibc calls into kernel using futex operation which will assign new private hash if available. This will retry every 100ms up to 2 seconds in total. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250710110011.384614-2-bigeasy@linutronix.de
2025-07-10selftests: net: lib: fix shift count out of rangeHangbin Liu
I got the following warning when writing other tests: + handle_test_result_pass 'bond 802.3ad' '(lacp_active off)' + local 'test_name=bond 802.3ad' + shift + local 'opt_str=(lacp_active off)' + shift + log_test_result 'bond 802.3ad' '(lacp_active off)' ' OK ' + local 'test_name=bond 802.3ad' + shift + local 'opt_str=(lacp_active off)' + shift + local 'result= OK ' + shift + local retmsg= + shift /net/tools/testing/selftests/net/forwarding/../lib.sh: line 315: shift: shift count out of range This happens because an extra shift is executed even after all arguments have been consumed. Remove the last shift in log_test_result() to avoid this warning. Fixes: a923af1ceee7 ("selftests: forwarding: Convert log_test() to recognize RET values") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20250709091244.88395-1-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10selftests: Add IPv6 multicast route generation tests for GRE devices.Guillaume Nault
The previous patch fixes a bug that prevented the creation of the default IPv6 multicast route (ff00::/8) for some GRE devices. Now let's extend the GRE IPv6 selftests to cover this case. Also, rename check_ipv6_ll_addr() to check_ipv6_device_config() and adapt comments and script output to take into account the fact that we're not limited to link-local address generation. Signed-off-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/65a89583bde3bf866a1922c2e5158e4d72c520e2.1752070620.git.gnault@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10selftests: drv-net: test RSS header field configurationJakub Kicinski
Test reading RXFH fields over IOCTL and netlink. # ./tools/testing/selftests/drivers/net/hw/rss_api.py TAP version 13 1..3 ok 1 rss_api.test_rxfh_indir_ntf ok 2 rss_api.test_rxfh_indir_ctx_ntf ok 3 rss_api.test_rxfh_fields # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0 Link: https://patch.msgid.link/20250708220640.2738464-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10selftests: breakpoints: use suspend_stats to reliably check suspend successMoon Hee Lee
The step_after_suspend_test verifies that the system successfully suspended and resumed by setting a timerfd and checking whether the timer fully expired. However, this method is unreliable due to timing races. In practice, the system may take time to enter suspend, during which the timer may expire just before or during the transition. As a result, the remaining time after resume may show non-zero nanoseconds, even if suspend/resume completed successfully. This leads to false test failures. Replace the timer-based check with a read from /sys/power/suspend_stats/success. This counter is incremented only after a full suspend/resume cycle, providing a reliable and race-free indicator. Also remove the unused file descriptor for /sys/power/state, which remained after switching to a system() call to trigger suspend [1]. [1] https://lore.kernel.org/all/20240930224025.2858767-1-yifei.l.liu@oracle.com/ Link: https://lore.kernel.org/r/20250626191626.36794-1-moonhee.lee.ca@gmail.com Fixes: c66be905cda2 ("selftests: breakpoints: use remaining time to check if suspend succeed") Signed-off-by: Moon Hee Lee <moonhee.lee.ca@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-07-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc6). No conflicts. Adjacent changes: Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml 0a12c435a1d6 ("dt-bindings: net: sun8i-emac: Add A100 EMAC compatible") b3603c0466a8 ("dt-bindings: net: sun8i-emac: Rename A523 EMAC0 to GMAC0") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10Merge tag 'net-6.16-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from Bluetooth. Current release - regressions: - tcp: refine sk_rcvbuf increase for ooo packets - bluetooth: fix attempting to send HCI_Disconnect to BIS handle - rxrpc: fix over large frame size warning - eth: bcmgenet: initialize u64 stats seq counter Previous releases - regressions: - tcp: correct signedness in skb remaining space calculation - sched: abort __tc_modify_qdisc if parent class does not exist - vsock: fix transport_{g2h,h2g} TOCTOU - rxrpc: fix bug due to prealloc collision - tipc: fix use-after-free in tipc_conn_close(). - bluetooth: fix not marking Broadcast Sink BIS as connected - phy: qca808x: fix WoL issue by utilizing at8031_set_wol() - eth: am65-cpsw-nuss: fix skb size by accounting for skb_shared_info Previous releases - always broken: - netlink: fix wraparounds of sk->sk_rmem_alloc. - atm: fix infinite recursive call of clip_push(). - eth: - stmmac: fix interrupt handling for level-triggered mode in DWC_XGMAC2 - rtsn: fix a null pointer dereference in rtsn_probe()" * tag 'net-6.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (37 commits) net/sched: sch_qfq: Fix null-deref in agg_dequeue rxrpc: Fix oops due to non-existence of prealloc backlog struct rxrpc: Fix bug due to prealloc collision MAINTAINERS: remove myself as netronome maintainer selftests/net: packetdrill: add tcp_ooo-before-and-after-accept.pkt tcp: refine sk_rcvbuf increase for ooo packets net/sched: Abort __tc_modify_qdisc if parent class does not exist net: ethernet: ti: am65-cpsw-nuss: Fix skb size by accounting for skb_shared_info net: thunderx: avoid direct MTU assignment after WRITE_ONCE() selftests/tc-testing: Create test case for UAF scenario with DRR/NETEM/BLACKHOLE chain atm: clip: Fix NULL pointer dereference in vcc_sendmsg() atm: clip: Fix infinite recursive call of clip_push(). atm: clip: Fix memory leak of struct clip_vcc. atm: clip: Fix potential null-ptr-deref in to_atmarpd(). net: phy: smsc: Fix link failure in forced mode with Auto-MDIX net: phy: smsc: Force predictable MDI-X state on LAN87xx net: phy: smsc: Fix Auto-MDIX configuration when disabled by strap net: stmmac: Fix interrupt handling for level-triggered mode in DWC_XGMAC2 rxrpc: Fix over large frame size warning net: airoha: Fix an error handling path in airoha_probe() ...
2025-07-10Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: "Many patches, pretty much all of them small, that accumulated while I was on vacation. ARM: - Remove the last leftovers of the ill-fated FPSIMD host state mapping at EL2 stage-1 - Fix unexpected advertisement to the guest of unimplemented S2 base granule sizes - Gracefully fail initialising pKVM if the interrupt controller isn't GICv3 - Also gracefully fail initialising pKVM if the carveout allocation fails - Fix the computing of the minimum MMIO range required for the host on stage-2 fault - Fix the generation of the GICv3 Maintenance Interrupt in nested mode x86: - Reject SEV{-ES} intra-host migration if one or more vCPUs are actively being created, so as not to create a non-SEV{-ES} vCPU in an SEV{-ES} VM - Use a pre-allocated, per-vCPU buffer for handling de-sparsification of vCPU masks in Hyper-V hypercalls; fixes a "stack frame too large" issue - Allow out-of-range/invalid Xen event channel ports when configuring IRQ routing, to avoid dictating a specific ioctl() ordering to userspace - Conditionally reschedule when setting memory attributes to avoid soft lockups when userspace converts huge swaths of memory to/from private - Add back MWAIT as a required feature for the MONITOR/MWAIT selftest - Add a missing field in struct sev_data_snp_launch_start that resulted in the guest-visible workarounds field being filled at the wrong offset - Skip non-canonical address when processing Hyper-V PV TLB flushes to avoid VM-Fail on INVVPID - Advertise supported TDX TDVMCALLs to userspace - Pass SetupEventNotifyInterrupt arguments to userspace - Fix TSC frequency underflow" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: avoid underflow when scaling TSC frequency KVM: arm64: Remove kvm_arch_vcpu_run_map_fp() KVM: arm64: Fix handling of FEAT_GTG for unimplemented granule sizes KVM: arm64: Don't free hyp pages with pKVM on GICv2 KVM: arm64: Fix error path in init_hyp_mode() KVM: arm64: Adjust range correctly during host stage-2 faults KVM: arm64: nv: Fix MI line level calculation in vgic_v3_nested_update_mi() KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush KVM: SVM: Add missing member in SNP_LAUNCH_START command structure Documentation: KVM: Fix unexpected unindent warnings KVM: selftests: Add back the missing check of MONITOR/MWAIT availability KVM: Allow CPU to reschedule while setting per-page memory attributes KVM: x86/xen: Allow 'out of range' event channel ports in IRQ routing table. KVM: x86/hyper-v: Use preallocated per-vCPU buffer for de-sparsified vCPU masks KVM: SVM: Initialize vmsa_pa in VMCB to INVALID_PAGE if VMSA page is NULL KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight KVM: TDX: Report supported optional TDVMCALLs in TDX capabilities KVM: TDX: Exit to userspace for SetupEventNotifyInterrupt
2025-07-10iommufd/selftest: Add coverage for viommu dataNicolin Chen
Extend the existing test_cmd/err_viommu_alloc helpers to accept optional user data. And add a TEST_F for a loopback test. Link: https://patch.msgid.link/r/8ceb64d30e9953f29270a7d341032ca439317271.1752126748.git.nicolinc@nvidia.com Reviewed-by: Pranjal Shrivastava <praan@google.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-10KVM: selftests: Add CONFIG_EVENTFD for irqfd selftestMark Brown
In 7e9b231c402a ("KVM: selftests: Add a KVM_IRQFD test to verify uniqueness requirements") we added a test for the newly added irqfd support but since this feature works with eventfds it won't work unless the kernel has been built wth eventfd support. Add CONFIG_EVENTFD to the list of required options for the KVM selftests. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250710-kvm-selftests-eventfd-config-v1-1-78c276e4b80f@kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-07-09vsock/test: fix test for null ptr deref when transport changesStefano Garzarella
In test_stream_transport_change_client(), the client sends CONTROL_CONTINUE on each iteration, even when connect() is unsuccessful. This causes a flood of control messages in the server that hangs around for more than 10 seconds after the test finishes, triggering several timeouts and causing subsequent tests to fail. This was discovered in testing a newly proposed test that failed in this way on the client side: ... 33 - SOCK_STREAM transport change null-ptr-deref...ok 34 - SOCK_STREAM ioctl(SIOCINQ) functionality...recv timed out The CONTROL_CONTINUE message is used only to tell to the server to call accept() to consume successful connections, so that subsequent connect() will not fail for finding the queue full. Send CONTROL_CONTINUE message only when the connect() has succeeded, or found the queue full. Note that the second connect() can also succeed if the first one was interrupted after sending the request. Fixes: 3a764d93385c ("vsock/test: Add test for null ptr deref when transport changes") Cc: leonardi@redhat.com Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Luigi Leonardi <leonardi@redhat.com> Link: https://patch.msgid.link/20250708111701.129585-1-sgarzare@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-09test/vsock: Add ioctl SIOCINQ testsXuewei Niu
Add SIOCINQ ioctl tests for both SOCK_STREAM and SOCK_SEQPACKET. The client waits for the server to send data, and checks if the SIOCINQ ioctl value matches the data size. After consuming the data, the client checks if the SIOCINQ value is 0. Signed-off-by: Xuewei Niu <niuxuewei.nxw@antgroup.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Tested-by: Luigi Leonardi <leonardi@redhat.com> Reviewed-by: Luigi Leonardi <leonardi@redhat.com> Link: https://patch.msgid.link/20250708-siocinq-v6-4-3775f9a9e359@antgroup.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-09test/vsock: Add retry mechanism to ioctl wrapperXuewei Niu
Wrap the ioctl in `ioctl_int()`, which takes a pointer to the actual int value and an expected int value. The function will not return until either the ioctl returns the expected value or a timeout occurs, thus avoiding immediate failure. Signed-off-by: Xuewei Niu <niuxuewei.nxw@antgroup.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Luigi Leonardi <leonardi@redhat.com> Link: https://patch.msgid.link/20250708-siocinq-v6-3-3775f9a9e359@antgroup.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-09selftests/net: packetdrill: add tcp_ooo-before-and-after-accept.pktEric Dumazet
Test how new passive flows react to ooo incoming packets. Their sk_rcvbuf can increase only after accept(). Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250707213900.1543248-3-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
generated by cgit (git 2.34.1) at 2025-08-01 01:23:03 +0000